$4000 - $5000, GfG

2901-21-005 IR 29 Di Gas Transmitter with Display, with Pressure and Humidity Compensation, IP67, Acetylene (C2H2), 0 - 100 LEL by GfG

Measuring Principle

IR transmitters have become recognized as reliable gas warning systems for explosion protection. They are used to detect individual combustible gases or a wide range of gases. This involves sending an IR beam with a certain light intensity through a measuring space and then capturing it with a detector. Parts of this beam are absorbed by, amongst other things, hydrocarbon molecules. The reduced light intensity of the beam is registered by beam detectors and converted into a signal as the existing % LEL gas concentration.

Benefits

A special feature of our IR technology is its ability to also measure combustible gases above the lower explosion limit. Moreover, the measurement does not require oxygen.

With this technology there is basically no risk of contaminating the sensor, through silicone vapors or hydrogen sulfide, when using catalytic combustion sensors.

Operation

IR transmitters are usually used with 2 wavelengths, a so-called reference wavelength and just one measuring wavelength. Strict limits are applied to these systems. The absorption spectra of many hydrocarbons are located in the wavelength range of 3.3 μm and overlap to a large extent.

This means that gases with overlapping spectra and just one measuring wavelength can no longer be clearly distinguished. Some hydrocarbons, e.g. the frequently used welding gas acetylene, are non-absorbing in the wavelength range of 3.3 µm, but absorb instead in neighboring wavelength ranges.

In many practical applications, it is not essentially important which gas is responsible for the explosion risk. Therefore, early warnings through the broadband measurement of hydrocarbons in order to monitor the lower explosion limit (LEL) must be guaranteed. False alarms with uncritical concentrations of individual gases or solvents are thus absolutely unacceptable.

These requirements are problems for systems with 2 wavelengths.

Patented GfG Technology

The internationally patented technology of the IR 29 has been developed to solve these problems. The gold-plated mirror optics of the sensor contains 2 radiators and up to 4 detector elements with different optical filters. The precisely calculated, microstructured and pure gold coated mirror optics of the IR 29 are supplied for the first time without beam splitters.

This helps to cut signal losses by 50 % and to completely avoid the physically-related disadvantages of a beam splitter. The measured values from two additional wavelengths (4 wavelengths in total) ensure improved detection of individual gases and thus enhanced selectivity. This results in the prevention of false alarms. Only a 4 wavelength system always guarantees early warnings and the simultaneous prevention of false alarms.

New Technology

The IR 29 is the first and only intrinsically safe IR gas transmitter with patented 4-beam 4-wavelength technology.

The ignition protection class "intrinsically safe", which is so essential for industrial plants and the mining industry, is achieved by the additional use of the SB1 safety barrier and its internationally patented and innovative design.

Complete Safety Even In Zone 0

The IR 29 is the first IR gas transmitter that can also be used in Ex zone 0 and which enables maintenance as well as replacement of the sensor head without additional expense when energized.

Universal Application

The IR 29 with its robust V4A stainless steel housing has been designed to withstand the harshest environmental conditions.

The application areas of the dust and water-protected structure range from production and storage areas to disposal sites, biogas plants, mines and oil rigs.

Internal Data Logger

A standard built-in data logger records all the measuring data, minimum / maximum values, average values and alarm events of the last 24 hours in a ring buffer.

The recording can also be shown on the display as a 2 and 8 hour trend indicator.

The histogram mode can be selected as a permanent display of the measured values. These values are continuously updated.

Graphical Display

Measured values are shown on the high-contrast graphical display. The display can be rotated 180° depending on the installation of the IR 29.

Self Diagnosis

Processor-based signal processing enables the systematic compensation of temperature dependencies, aging influences and soiling effects. Safety-relevant functions are monitored permanently via self-diagnosis procedures and a possibly required service is indicated automatically. Daily interfering factors, such as dust and dirt accumulation, are almost completely eliminated by the innovative design.

Pressure Sensor, Moisture and Temperature Compensation

The measuring accuracy of IR sensors depends on partial pressure and thus also air pressure. Climatic fluctuations or barometric high pressure therefore influence the measuring result. Furthermore, the absorption spectrum of water almost completely covers that of hydrocarbon absorption in the 2.7 to 3.3 μm range. Air humidity therefore initially generates a measuring signal the same as the actual measuring gas. This cross-sensitivity is of particular importance in warm areas with high relative humidity. An increase in the absolute water absorption capacity of air is not linear with the temperature, i.e. three times as much water can be absorbed at 40 °C than at 20 °C. This influence can only be compensated if the current moisture content of the air is known. The IR 29 can be optionally equipped with a pressure and moisture sensor for compensation.

Maximum Safety

The innovative display enables the realization of completely safe warning concepts.

Local displays and signals directly at the device can be used to provide an early warning of potential risks.

The display at the upstream safety barrier SB1 D enables the detection of risks outside the danger zone being monitored.

This allows immediate on-site action before really hazardous situations occur.

Dust Protection

A gas permeable, water-repellent diaphragm protects the absorption space of the transmitter against dust. The additional impact protection made from robust V4A stainless steel prevents mechanical damage to the optical components.

The diaphragm can be cleaned or replaced in a matter of minutes.

Remote Controls

The IR 29 transmitter does not feature control elements for setting or servicing tasks. This helps to prevent accidental or unauthorized manipulation.

Service work at the IR 29 transmitter is carried out using the RC 2 remote control.

Features

• First intrinsically safe infrared transmitter for explosion protection
• ATEX II 1G Ex ia IIC T4 Ga C0158 can also be used in Ex zone 0
• Temperature, moisture and pressure compensation
• Patented infrared technology (NDIR)
• The energized IR sensor head can be replaced in Ex areas
• Maintenance and service-friendly

G46K-01-03-70-61-65 G460 Multi-Gas Detector Value Kit, O2, Infrared LEL Sensor, CO and H2S Sensor, PID by GfG

For over 50 years, GfG Instrumentation has worked to develop the most reliable and effective equipment for gas detection and measurement technology. Developed by a team of highly experienced scientists and specially trained engineers, GfG products are high quality reliable instruments designed to meet the unique needs of potentially hazardous worksite. With the introduction of the G460 Multi-Gas Detector, GfG Instrumentation is continuing the trend.

G460 Multi-Gas Detector

The G460 Multi-Gas Detector is a compact and robust system with the capabilities of detecting up to six different gases and simultaneously displaying the readings. The portable detector features a user friendly and intuitive interface to simplify the day to day operations.

Ease of Use

For typical daily operations, the G460 Multi-Gas Detector operates with a single button. The complete user interface can provide access to advanced setup options with three buttons. The unit also features easy calibration operation. Simply attach the calibration adapter and apply gas. The G460 will automatically perform the appropriate adjustments. The detector will then store the dates of the three most recent calibrations for each sensor.

The G460 also features a large easy to read tricolor display which uses a color code to indicate the alarm severity. From green to orange to red, the tricolor display is intuitive and incredibly user friendly. The display feature can also flip or zoom with the touch of a button. The G460 multi-faceted alarm system also includes an ultra loud audible buzzer at 103 dB, a standard vibration mechanism, and 360 bright LED alerts (the LED alerts can also be equipped to function as flashlights). This multi-faceted system is sure to alert users and those nearby of the potential hazardous conditions. For smooth and continuous operations, the G460 Multi-Gas Detector uses interchangeable alkaline and rechargeable battery packs that provide up to 25 hours of continuous operation. Using a drop in cradle charger, the rechargeable pack can completely recharge in less than 4 hours.

G460 Multi-Gas Detector Features

The G460 Multi-Gas Detector features a motorized pump with a built-in diffusion or sample draw mode switch. The hose is easily attachable and can draw from 100 feet away. The hose is powered by its own battery pack that provides 20 hours of continuous operation. The multi-gas detector also features the widest range of sensors on the market. The compatible long lasting (and interchangeable) smart sensors include LEL, SO2, O2, H2, H2S, NO, CO, O3, HF, NH3, CIO2, CI2, PH3, ETO, HCN, and NO2. Users can purchase additional sensors to help customize the unit such as infrared sensors for the measurement of CO2 and photoionization sensors for volatile organic chemical hazards. The G460 has standard data logging capabilities that store up to 55 hours of the most recent activities. Alarm activations gas thresholds and stored permanently in the internal memory. Employers can download all internal information to generate reports and monitor results.

G46C-01-03-70-61-65 G460 Multi-Gas Detector Confined Space Kit, O2, Infrared LEL Sensor, CO and H2S Sensor, PID by GfG

For over 50 years, GfG Instrumentation has worked to develop the most reliable and effective equipment for gas detection and measurement technology. Developed by a team of highly experienced scientists and specially trained engineers, GfG products are high quality reliable instruments designed to meet the unique needs of potentially hazardous worksite. With the introduction of the G460 Multi-Gas Detector, GfG Instrumentation is continuing the trend.

G460 Multi-Gas Detector

The G460 Multi-Gas Detector is a compact and robust system with the capabilities of detecting up to six different gases and simultaneously displaying the readings. The portable detector features a user friendly and intuitive interface to simplify the day to day operations.

Ease of Use

For typical daily operations, the G460 Multi-Gas Detector operates with a single button. The complete user interface can provide access to advanced setup options with three buttons. The unit also features easy calibration operation. Simply attach the calibration adapter and apply gas. The G460 will automatically perform the appropriate adjustments. The detector will then store the dates of the three most recent calibrations for each sensor.

The G460 also features a large easy to read tricolor display which uses a color code to indicate the alarm severity. From green to orange to red, the tricolor display is intuitive and incredibly user friendly. The display feature can also flip or zoom with the touch of a button. The G460 multi-faceted alarm system also includes an ultra loud audible buzzer at 103 dB, a standard vibration mechanism, and 360 bright LED alerts (the LED alerts can also be equipped to function as flashlights). This multi-faceted system is sure to alert users and those nearby of the potential hazardous conditions. For smooth and continuous operations, the G460 Multi-Gas Detector uses interchangeable alkaline and rechargeable battery packs that provide up to 25 hours of continuous operation. Using a drop in cradle charger, the rechargeable pack can completely recharge in less than 4 hours.

G460 Multi-Gas Detector Features

The G460 Multi-Gas Detector features a motorized pump with a built-in diffusion or sample draw mode switch. The hose is easily attachable and can draw from 100 feet away. The hose is powered by its own battery pack that provides 20 hours of continuous operation. The multi-gas detector also features the widest range of sensors on the market. The compatible long lasting (and interchangeable) smart sensors include LEL, SO2, O2, H2, H2S, NO, CO, O3, HF, NH3, CIO2, CI2, PH3, ETO, HCN, and NO2. Users can purchase additional sensors to help customize the unit such as infrared sensors for the measurement of CO2 and photoionization sensors for volatile organic chemical hazards. The G460 has standard data logging capabilities that store up to 55 hours of the most recent activities. Alarm activations gas thresholds and stored permanently in the internal memory. Employers can download all internal information to generate reports and monitor results.

4021-DPX RAM 4021 Respiratory Air Monitor, Carbon Monoxide (CO) and Dew Point by GfG

The RAM 4021 AutoCal® series is the unit of choice where specific and accurate measurement of carbon monoxide, oxygen or dew-point levels are required. Designed to meet OSHA requirements for monitoring of Grade D respirable air, this unit is equipped with a reliable electrochemical sensor that accurately indicates the level of carbon monoxide on an illuminated liquid crystal display. Adding versatility, this unit offers optional oxygen or dew point sensors for applications where detection or measurement is needed.

Calibration and maintenance are simple with our innovative AutoCal® system. Additional features including alarm relay contacts, user adjustable alarm point, low flow alarm indicator and many more make this unit an intelligent choice. The RAM 4021 is available in four models, the 4021 (CO), 4021-1 (CO and O2), 4021-DPX (CO and dew point levels) and 4021-PR (CO and additional relay to signal power loss to monitor, complies with newest NFPA regulation). All models may be purchased with or without airline filter systems

Respiratory air specifications

All GfG Instrumentation RAM Instruments satisfy the requirements of OSHA rule 29 CFR 1910.134 (d) (2) (ii) for carbon monoxide monitoring. They will also monitor Grade E air, generally specified for breathing air in cylinders (SCBA).

Wall mounted filter panel option

The 25, 50 and 100 CFM panels filter out dangerous toxins from supplied air sources and ensure clean, breathable air. The threestage filter system efficiently removes particulates, oil vapors and hydrocarbons from an air supply. After filtration, the regulator sets the pressure for the respiratory equipment and the manifold assembly provides multiple outlets for airline hose quick connections. The model 8025 panel includes two user female quick connect outlets; the 8050 includes four, and the 8100 includes eight. A 1/2" FPT connection is standard on all 50 and 100 CFM panels, and a 3/8" FPT connection is standard on all 25 CFM panels.

Features

• Continuous compressed air CO monitor
• Integrated dew point measurement
• Robust easy-to-operate design

Features

• RAM 4021 Monitor
• Carbon monoxide (CO) sensor
• Other sensors (as specified)
• Manual

2200-016W GMA 200-MW16 Controller, Configured for 16 Measuring Points, Supply Voltage 24 V/DC, without Power Supply by GfG

The GMA 200-MW is our most flexible and advanced gas detection system controller. The design of the GMA 200-MW ensures simple and clearly structured operation in industrial and commercial applications. The system can be configured for control of any combination of GfG gas transmitters for the measurement of an extremely wide range of toxic and combustible gases and vapors.

Flexible modular design

Each GMA 200-MW module can control up to 16 individual gas transmitters (sensors). The self-contained, IP-65 wall-mounted housing facilitates cost-effective and space-saving installation. GMA 200-MW systems are scalable, and easy to expand by adding additional controller and relay modules. Optional gateway modules allow control via remote or touch-screen computer interface.

Easy to configure

Easy-to-use, menu driven GMA 200-MW software allows configuration of sensor type, gas type, measuring point designations, units of measurement, calibration curves, and function of the comprehensive and fully programmable relays. Up to three individual or specified alarm thresholds can be programmed for each measuring point. The GMA 200-MW continuously evaluates the analog input signals of the connected detectors.

Integrated relays

GMA 200-MW systems include comprehensive and fully programmable relays. Each controller is equipped with 8 internal relays. Menu-driven software allows easy assignment of measuring points to relays, single or multiple alarms per point, alarm thresholds, configuration of collective or group alarms, zoning, fault messages and voting functions.

Relay modules

GMA 200-RW relay modules are housed in easy to install IP-65 wall mounted enclosures. Each relay module provides an additional 16 freely configurable relays. A total of four additional relay modules (for 64 additional relays) can be managed by the same GMA 200-MW system. Digital connection with the GMA 200-MW controller allows remote positioning of the relay module wherever it makes the most sense, substantially reducing cabling and installation costs.

Remote terminal displays

Relay modules are available with or without an integral display for readings and system information, making it easy to add a remote terminal wherever needed.

Optional Fieldbus-Gateways

Optional gateway modules allow integration of the GMA 200-MW system into existing company networks based on TCP/IP, Process Field Bus or Process Field Network protocols. Monitoring and system performance data are easily exported for viewing or analysis. A wifi interface can be added to the gateway to allow wireless connection with a touch screen Windows® computer or smart-phone to display or access system information.

GMA 200 power options

GMA 200-MW power options include traditional voltage inputs (2 x 24 V DC, 20-30 V), as well as operation via a redundant, uninterruptible power supply (UPS), ensuring continued operation of the gas warning system even during a power outage.

Integral alarms

The GMA 200-MW includes built-in bright LED strobe light and loud audible alarms.

LED indicator lights

The status of the GMA 200-MW system (including operation, fault, service, alarm and relay status) is shown via LEDs. Individual LED indicators identify the type and severity of the alarm condition, (FLT, AL1, AL2, AL3), and any relays activated by the condition, (R1 through R8).

Datalogging standard

Measured values, mean values, alarm events and faults are permanently stored on a microSD memory card.

Graphical display

Currently measured values are displayed on a backlit, graphical LCD. In the event of an alarm the display changes color from green to red, and highlights the affected channels.

Five buttons enable operation at the GMA 200-MW controller. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the controller, detector and the relays can be retrieved in the operating menu.

Operation via keypad

Operation of the GMA 200-MW is through easy-to-use menus, and a simple 5 button interface for alarm acknowledgement, and viewing information on the status of the gas warning system, detectors and relays. The intuitive push-button controls make it easy to navigate through additional screens of information. The integrated display enables the reading of alarm levels through the controller LCD for easy hazard assessment.

Configuration

A built-in USB port in the GMA 200-MW is used for connection to the configuration software. GMA 200-MW systems connected through a Fieldbus gateway can be remotely connected with a GfG factory service center for configuration, diagnostic or service evaluation.

Easy and convenient service

GfG offers full after-the-sale commissioning and field service support.

Additional modules available in IP-65 wall-mounting housings

• External relay module: GMA 200-RW
• Independent power supply: GMA 200-UPS
• Continuous, motorized pump sampling unit: GMA 200-ASV
• Fieldbus gateway: GMA 200-GW

Features

• Advanced and flexible controller for combustible, O₂ and toxic gas
• IP-65 wall-mounting housing, with integral audible and LED alarms
• Flexible, reliable and economic
• Up to 16 transmitters per GMA 200-MW controller in any combination
• Freely programmable relays
• Clearly structured, easy-to-use push-button interface
• Backlit graphic LCD changes color to indicate alarm
• Connect to other measurement devices with 4-20 mA output

G460-01-03-70-64-14 G460 Multi-Gas Detector with Alkaline Smart Pump and Alkaline Battery, O2, Infrared LEL Sensor / % Vol., CO and H2S Sensor, CO2, PID, NDIR by GfG

For over 50 years, GfG Instrumentation has worked to develop the most reliable and effective equipment for gas detection and measurement technology. Developed by a team of highly experienced scientists and specially trained engineers, GfG products are high quality reliable instruments designed to meet the unique needs of potentially hazardous worksite. With the introduction of the G460 Multi-Gas Detector, GfG Instrumentation is continuing the trend.

G460 Multi-Gas Detector

The G460 Multi-Gas Detector is a compact and robust system with the capabilities of detecting up to six different gases and simultaneously displaying the readings. The portable detector features a user friendly and intuitive interface to simplify the day to day operations.

Ease of Use

For typical daily operations, the G460 Multi-Gas Detector operates with a single button. The complete user interface can provide access to advanced setup options with three buttons. The unit also features easy calibration operation. Simply attach the calibration adapter and apply gas. The G460 will automatically perform the appropriate adjustments. The detector will then store the dates of the three most recent calibrations for each sensor.

The G460 also features a large easy to read tricolor display which uses a color code to indicate the alarm severity. From green to orange to red, the tricolor display is intuitive and incredibly user friendly. The display feature can also flip or zoom with the touch of a button. The G460 multi-faceted alarm system also includes an ultra loud audible buzzer at 103 dB, a standard vibration mechanism, and 360 bright LED alerts (the LED alerts can also be equipped to function as flashlights). This multi-faceted system is sure to alert users and those nearby of the potential hazardous conditions. For smooth and continuous operations, the G460 Multi-Gas Detector uses interchangeable alkaline and rechargeable battery packs that provide up to 25 hours of continuous operation. Using a drop in cradle charger, the rechargeable pack can completely recharge in less than 4 hours.

G460 Multi-Gas Detector Features

The G460 Multi-Gas Detector features a motorized pump with a built-in diffusion or sample draw mode switch. The hose is easily attachable and can draw from 100 feet away. The hose is powered by its own battery pack that provides 20 hours of continuous operation. The multi-gas detector also features the widest range of sensors on the market. The compatible long lasting (and interchangeable) smart sensors include LEL, SO2, O2, H2, H2S, NO, CO, O3, HF, NH3, CIO2, CI2, PH3, ETO, HCN, and NO2. Users can purchase additional sensors to help customize the unit such as infrared sensors for the measurement of CO2 and photoionization sensors for volatile organic chemical hazards. The G460 has standard data logging capabilities that store up to 55 hours of the most recent activities. Alarm activations gas thresholds and stored permanently in the internal memory. Employers can download all internal information to generate reports and monitor results.

1450-404 DS404 Four Inlet Multi-gas Docking Station by GfG

Easy operation

The operation of the DS404 docking station couldn't be any easier. Simply put the G450 or the G460 in the dock and the system will take over from there. The DS404 automatically performs a full functional test including fresh air calibration, bump test, extensive sensor tests, alarm tests and optionally performs an automatic AutoCal® calibration.

Extensive diagnostics

The DS404 is designed to go beyond the traditional basic docking station tests and includes sensor diagnostics tests such as T50 and T90. After all, what good is a sensor that can respond to gas when it takes too long to get there? With the DS404 you can have confidence with this added level of safety.

Automatic charging

After all tests have been completed the DS404 will automatically start the charging process of the detector or you may remove and begin using it. In case the detectors battery condition is insufficient to complete a test the DS404 will charge the instrument before performing the test.

Record Keeping

A good instrument gas detection maintenance program is not complete without equally good records keeping. Whether you choose to download or maintain the records on a PC or network or your preference is to leave it to the docking station, the DS404 is the right choice.

The DS404 can retain as many as 2 million complete diagnostics in memory with maximum memory installed. That is over 50 years of data even if testing 100 detectors every single day!

Reduced cost of ownership

The DS404 is designed to reduce the cost of ownership every step of the way. The built in pump has variable flow control to reduce the amount of gas consumed during the test. The DS404 is even smart enough take advantage of the gas remaining in the tubing after the previous test was completed.

PC communication

The DS404 comes complete with USB interface cable and download software. The SD card may also be downloaded using a standard SD card reader.

Maintenance certificates

quickly print official calibration or bump test certificates. Simply download the records from the DS404 and start the "Certificate Generator" it takes only seconds!

Features

• Four test gas ports
• Fully automatic functional bump test and calibration
• Automatic test of alarms
• Automatic charging
• Automatic record keeping
• Simple pass / fail indication
• Cascade multiple docking stations
• Saves last calibration and bump test records in detector for easy retrieval of maintenance record in the field
• No computer necessary
• Up to 2,000,000 records in memory
• Saves times, gas and efforts for lower cost of ownership
• Print official calibration certificates

2901-37-005 IR 29 Di Gas Transmitter with Display, with Pressure and Humidity Compensation, IP67, Propane (C3H8), 0 - 100 LEL by GfG

Measuring Principle

IR transmitters have become recognized as reliable gas warning systems for explosion protection. They are used to detect individual combustible gases or a wide range of gases. This involves sending an IR beam with a certain light intensity through a measuring space and then capturing it with a detector. Parts of this beam are absorbed by, amongst other things, hydrocarbon molecules. The reduced light intensity of the beam is registered by beam detectors and converted into a signal as the existing % LEL gas concentration.

Benefits

A special feature of our IR technology is its ability to also measure combustible gases above the lower explosion limit. Moreover, the measurement does not require oxygen.

With this technology there is basically no risk of contaminating the sensor, through silicone vapors or hydrogen sulfide, when using catalytic combustion sensors.

Operation

IR transmitters are usually used with 2 wavelengths, a so-called reference wavelength and just one measuring wavelength. Strict limits are applied to these systems. The absorption spectra of many hydrocarbons are located in the wavelength range of 3.3 μm and overlap to a large extent.

This means that gases with overlapping spectra and just one measuring wavelength can no longer be clearly distinguished. Some hydrocarbons, e.g. the frequently used welding gas acetylene, are non-absorbing in the wavelength range of 3.3 µm, but absorb instead in neighboring wavelength ranges.

In many practical applications, it is not essentially important which gas is responsible for the explosion risk. Therefore, early warnings through the broadband measurement of hydrocarbons in order to monitor the lower explosion limit (LEL) must be guaranteed. False alarms with uncritical concentrations of individual gases or solvents are thus absolutely unacceptable.

These requirements are problems for systems with 2 wavelengths.

Patented GfG Technology

The internationally patented technology of the IR 29 has been developed to solve these problems. The gold-plated mirror optics of the sensor contains 2 radiators and up to 4 detector elements with different optical filters. The precisely calculated, microstructured and pure gold coated mirror optics of the IR 29 are supplied for the first time without beam splitters.

This helps to cut signal losses by 50 % and to completely avoid the physically-related disadvantages of a beam splitter. The measured values from two additional wavelengths (4 wavelengths in total) ensure improved detection of individual gases and thus enhanced selectivity. This results in the prevention of false alarms. Only a 4 wavelength system always guarantees early warnings and the simultaneous prevention of false alarms.

New Technology

The IR 29 is the first and only intrinsically safe IR gas transmitter with patented 4-beam 4-wavelength technology.

The ignition protection class "intrinsically safe", which is so essential for industrial plants and the mining industry, is achieved by the additional use of the SB1 safety barrier and its internationally patented and innovative design.

Complete Safety Even In Zone 0

The IR 29 is the first IR gas transmitter that can also be used in Ex zone 0 and which enables maintenance as well as replacement of the sensor head without additional expense when energized.

Universal Application

The IR 29 with its robust V4A stainless steel housing has been designed to withstand the harshest environmental conditions.

The application areas of the dust and water-protected structure range from production and storage areas to disposal sites, biogas plants, mines and oil rigs.

Internal Data Logger

A standard built-in data logger records all the measuring data, minimum / maximum values, average values and alarm events of the last 24 hours in a ring buffer.

The recording can also be shown on the display as a 2 and 8 hour trend indicator.

The histogram mode can be selected as a permanent display of the measured values. These values are continuously updated.

Graphical Display

Measured values are shown on the high-contrast graphical display. The display can be rotated 180° depending on the installation of the IR 29.

Self Diagnosis

Processor-based signal processing enables the systematic compensation of temperature dependencies, aging influences and soiling effects. Safety-relevant functions are monitored permanently via self-diagnosis procedures and a possibly required service is indicated automatically. Daily interfering factors, such as dust and dirt accumulation, are almost completely eliminated by the innovative design.

Pressure Sensor, Moisture and Temperature Compensation

The measuring accuracy of IR sensors depends on partial pressure and thus also air pressure. Climatic fluctuations or barometric high pressure therefore influence the measuring result. Furthermore, the absorption spectrum of water almost completely covers that of hydrocarbon absorption in the 2.7 to 3.3 μm range. Air humidity therefore initially generates a measuring signal the same as the actual measuring gas. This cross-sensitivity is of particular importance in warm areas with high relative humidity. An increase in the absolute water absorption capacity of air is not linear with the temperature, i.e. three times as much water can be absorbed at 40 °C than at 20 °C. This influence can only be compensated if the current moisture content of the air is known. The IR 29 can be optionally equipped with a pressure and moisture sensor for compensation.

Maximum Safety

The innovative display enables the realization of completely safe warning concepts.

Local displays and signals directly at the device can be used to provide an early warning of potential risks.

The display at the upstream safety barrier SB1 D enables the detection of risks outside the danger zone being monitored.

This allows immediate on-site action before really hazardous situations occur.

Dust Protection

A gas permeable, water-repellent diaphragm protects the absorption space of the transmitter against dust. The additional impact protection made from robust V4A stainless steel prevents mechanical damage to the optical components.

The diaphragm can be cleaned or replaced in a matter of minutes.

Remote Controls

The IR 29 transmitter does not feature control elements for setting or servicing tasks. This helps to prevent accidental or unauthorized manipulation.

Service work at the IR 29 transmitter is carried out using the RC 2 remote control.

Features

• First intrinsically safe infrared transmitter for explosion protection
• ATEX II 1G Ex ia IIC T4 Ga C0158 can also be used in Ex zone 0
• Temperature, moisture and pressure compensation
• Patented infrared technology (NDIR)
• The energized IR sensor head can be replaced in Ex areas
• Maintenance and service-friendly

2200-013W GMA 200-MW16 Controller, Configured for 13 Measuring Points, Supply Voltage 24 V/DC, without Power Supply by GfG

The GMA 200-MW is our most flexible and advanced gas detection system controller. The design of the GMA 200-MW ensures simple and clearly structured operation in industrial and commercial applications. The system can be configured for control of any combination of GfG gas transmitters for the measurement of an extremely wide range of toxic and combustible gases and vapors.

Flexible modular design

Each GMA 200-MW module can control up to 16 individual gas transmitters (sensors). The self-contained, IP-65 wall-mounted housing facilitates cost-effective and space-saving installation. GMA 200-MW systems are scalable, and easy to expand by adding additional controller and relay modules. Optional gateway modules allow control via remote or touch-screen computer interface.

Easy to configure

Easy-to-use, menu driven GMA 200-MW software allows configuration of sensor type, gas type, measuring point designations, units of measurement, calibration curves, and function of the comprehensive and fully programmable relays. Up to three individual or specified alarm thresholds can be programmed for each measuring point. The GMA 200-MW continuously evaluates the analog input signals of the connected detectors.

Integrated relays

GMA 200-MW systems include comprehensive and fully programmable relays. Each controller is equipped with 8 internal relays. Menu-driven software allows easy assignment of measuring points to relays, single or multiple alarms per point, alarm thresholds, configuration of collective or group alarms, zoning, fault messages and voting functions.

Relay modules

GMA 200-RW relay modules are housed in easy to install IP-65 wall mounted enclosures. Each relay module provides an additional 16 freely configurable relays. A total of four additional relay modules (for 64 additional relays) can be managed by the same GMA 200-MW system. Digital connection with the GMA 200-MW controller allows remote positioning of the relay module wherever it makes the most sense, substantially reducing cabling and installation costs.

Remote terminal displays

Relay modules are available with or without an integral display for readings and system information, making it easy to add a remote terminal wherever needed.

Optional Fieldbus-Gateways

Optional gateway modules allow integration of the GMA 200-MW system into existing company networks based on TCP/IP, Process Field Bus or Process Field Network protocols. Monitoring and system performance data are easily exported for viewing or analysis. A wifi interface can be added to the gateway to allow wireless connection with a touch screen Windows® computer or smart-phone to display or access system information.

GMA 200 power options

GMA 200-MW power options include traditional voltage inputs (2 x 24 V DC, 20-30 V), as well as operation via a redundant, uninterruptible power supply (UPS), ensuring continued operation of the gas warning system even during a power outage.

Integral alarms

The GMA 200-MW includes built-in bright LED strobe light and loud audible alarms.

LED indicator lights

The status of the GMA 200-MW system (including operation, fault, service, alarm and relay status) is shown via LEDs. Individual LED indicators identify the type and severity of the alarm condition, (FLT, AL1, AL2, AL3), and any relays activated by the condition, (R1 through R8).

Datalogging standard

Measured values, mean values, alarm events and faults are permanently stored on a microSD memory card.

Graphical display

Currently measured values are displayed on a backlit, graphical LCD. In the event of an alarm the display changes color from green to red, and highlights the affected channels.

Five buttons enable operation at the GMA 200-MW controller. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the controller, detector and the relays can be retrieved in the operating menu.

Operation via keypad

Operation of the GMA 200-MW is through easy-to-use menus, and a simple 5 button interface for alarm acknowledgement, and viewing information on the status of the gas warning system, detectors and relays. The intuitive push-button controls make it easy to navigate through additional screens of information. The integrated display enables the reading of alarm levels through the controller LCD for easy hazard assessment.

Configuration

A built-in USB port in the GMA 200-MW is used for connection to the configuration software. GMA 200-MW systems connected through a Fieldbus gateway can be remotely connected with a GfG factory service center for configuration, diagnostic or service evaluation.

Easy and convenient service

GfG offers full after-the-sale commissioning and field service support.

Additional modules available in IP-65 wall-mounting housings

• External relay module: GMA 200-RW
• Independent power supply: GMA 200-UPS
• Continuous, motorized pump sampling unit: GMA 200-ASV
• Fieldbus gateway: GMA 200-GW

Features

• Advanced and flexible controller for combustible, O₂ and toxic gas
• IP-65 wall-mounting housing, with integral audible and LED alarms
• Flexible, reliable and economic
• Up to 16 transmitters per GMA 200-MW controller in any combination
• Freely programmable relays
• Clearly structured, easy-to-use push-button interface
• Backlit graphic LCD changes color to indicate alarm
• Connect to other measurement devices with 4-20 mA output

2901-09-005 IR 29 Di Gas Transmitter with Display, with Pressure and Humidity Compensation, IP67, Methane (CH4), 0 - 100 LEL by GfG

Measuring Principle

IR transmitters have become recognized as reliable gas warning systems for explosion protection. They are used to detect individual combustible gases or a wide range of gases. This involves sending an IR beam with a certain light intensity through a measuring space and then capturing it with a detector. Parts of this beam are absorbed by, amongst other things, hydrocarbon molecules. The reduced light intensity of the beam is registered by beam detectors and converted into a signal as the existing % LEL gas concentration.

Benefits

A special feature of our IR technology is its ability to also measure combustible gases above the lower explosion limit. Moreover, the measurement does not require oxygen.

With this technology there is basically no risk of contaminating the sensor, through silicone vapors or hydrogen sulfide, when using catalytic combustion sensors.

Operation

IR transmitters are usually used with 2 wavelengths, a so-called reference wavelength and just one measuring wavelength. Strict limits are applied to these systems. The absorption spectra of many hydrocarbons are located in the wavelength range of 3.3 μm and overlap to a large extent.

This means that gases with overlapping spectra and just one measuring wavelength can no longer be clearly distinguished. Some hydrocarbons, e.g. the frequently used welding gas acetylene, are non-absorbing in the wavelength range of 3.3 µm, but absorb instead in neighboring wavelength ranges.

In many practical applications, it is not essentially important which gas is responsible for the explosion risk. Therefore, early warnings through the broadband measurement of hydrocarbons in order to monitor the lower explosion limit (LEL) must be guaranteed. False alarms with uncritical concentrations of individual gases or solvents are thus absolutely unacceptable.

These requirements are problems for systems with 2 wavelengths.

Patented GfG Technology

The internationally patented technology of the IR 29 has been developed to solve these problems. The gold-plated mirror optics of the sensor contains 2 radiators and up to 4 detector elements with different optical filters. The precisely calculated, microstructured and pure gold coated mirror optics of the IR 29 are supplied for the first time without beam splitters.

This helps to cut signal losses by 50 % and to completely avoid the physically-related disadvantages of a beam splitter. The measured values from two additional wavelengths (4 wavelengths in total) ensure improved detection of individual gases and thus enhanced selectivity. This results in the prevention of false alarms. Only a 4 wavelength system always guarantees early warnings and the simultaneous prevention of false alarms.

New Technology

The IR 29 is the first and only intrinsically safe IR gas transmitter with patented 4-beam 4-wavelength technology.

The ignition protection class "intrinsically safe", which is so essential for industrial plants and the mining industry, is achieved by the additional use of the SB1 safety barrier and its internationally patented and innovative design.

Complete Safety Even In Zone 0

The IR 29 is the first IR gas transmitter that can also be used in Ex zone 0 and which enables maintenance as well as replacement of the sensor head without additional expense when energized.

Universal Application

The IR 29 with its robust V4A stainless steel housing has been designed to withstand the harshest environmental conditions.

The application areas of the dust and water-protected structure range from production and storage areas to disposal sites, biogas plants, mines and oil rigs.

Internal Data Logger

A standard built-in data logger records all the measuring data, minimum / maximum values, average values and alarm events of the last 24 hours in a ring buffer.

The recording can also be shown on the display as a 2 and 8 hour trend indicator.

The histogram mode can be selected as a permanent display of the measured values. These values are continuously updated.

Graphical Display

Measured values are shown on the high-contrast graphical display. The display can be rotated 180° depending on the installation of the IR 29.

Self Diagnosis

Processor-based signal processing enables the systematic compensation of temperature dependencies, aging influences and soiling effects. Safety-relevant functions are monitored permanently via self-diagnosis procedures and a possibly required service is indicated automatically. Daily interfering factors, such as dust and dirt accumulation, are almost completely eliminated by the innovative design.

Pressure Sensor, Moisture and Temperature Compensation

The measuring accuracy of IR sensors depends on partial pressure and thus also air pressure. Climatic fluctuations or barometric high pressure therefore influence the measuring result. Furthermore, the absorption spectrum of water almost completely covers that of hydrocarbon absorption in the 2.7 to 3.3 μm range. Air humidity therefore initially generates a measuring signal the same as the actual measuring gas. This cross-sensitivity is of particular importance in warm areas with high relative humidity. An increase in the absolute water absorption capacity of air is not linear with the temperature, i.e. three times as much water can be absorbed at 40 °C than at 20 °C. This influence can only be compensated if the current moisture content of the air is known. The IR 29 can be optionally equipped with a pressure and moisture sensor for compensation.

Maximum Safety

The innovative display enables the realization of completely safe warning concepts.

Local displays and signals directly at the device can be used to provide an early warning of potential risks.

The display at the upstream safety barrier SB1 D enables the detection of risks outside the danger zone being monitored.

This allows immediate on-site action before really hazardous situations occur.

Dust Protection

A gas permeable, water-repellent diaphragm protects the absorption space of the transmitter against dust. The additional impact protection made from robust V4A stainless steel prevents mechanical damage to the optical components.

The diaphragm can be cleaned or replaced in a matter of minutes.

Remote Controls

The IR 29 transmitter does not feature control elements for setting or servicing tasks. This helps to prevent accidental or unauthorized manipulation.

Service work at the IR 29 transmitter is carried out using the RC 2 remote control.

Features

• First intrinsically safe infrared transmitter for explosion protection
• ATEX II 1G Ex ia IIC T4 Ga C0158 can also be used in Ex zone 0
• Temperature, moisture and pressure compensation
• Patented infrared technology (NDIR)
• The energized IR sensor head can be replaced in Ex areas
• Maintenance and service-friendly

2200-015W GMA 200-MW16 Controller, Configured for 15 Measuring Points, Supply Voltage 24 V/DC, without Power Supply by GfG

The GMA 200-MW is our most flexible and advanced gas detection system controller. The design of the GMA 200-MW ensures simple and clearly structured operation in industrial and commercial applications. The system can be configured for control of any combination of GfG gas transmitters for the measurement of an extremely wide range of toxic and combustible gases and vapors.

Flexible modular design

Each GMA 200-MW module can control up to 16 individual gas transmitters (sensors). The self-contained, IP-65 wall-mounted housing facilitates cost-effective and space-saving installation. GMA 200-MW systems are scalable, and easy to expand by adding additional controller and relay modules. Optional gateway modules allow control via remote or touch-screen computer interface.

Easy to configure

Easy-to-use, menu driven GMA 200-MW software allows configuration of sensor type, gas type, measuring point designations, units of measurement, calibration curves, and function of the comprehensive and fully programmable relays. Up to three individual or specified alarm thresholds can be programmed for each measuring point. The GMA 200-MW continuously evaluates the analog input signals of the connected detectors.

Integrated relays

GMA 200-MW systems include comprehensive and fully programmable relays. Each controller is equipped with 8 internal relays. Menu-driven software allows easy assignment of measuring points to relays, single or multiple alarms per point, alarm thresholds, configuration of collective or group alarms, zoning, fault messages and voting functions.

Relay modules

GMA 200-RW relay modules are housed in easy to install IP-65 wall mounted enclosures. Each relay module provides an additional 16 freely configurable relays. A total of four additional relay modules (for 64 additional relays) can be managed by the same GMA 200-MW system. Digital connection with the GMA 200-MW controller allows remote positioning of the relay module wherever it makes the most sense, substantially reducing cabling and installation costs.

Remote terminal displays

Relay modules are available with or without an integral display for readings and system information, making it easy to add a remote terminal wherever needed.

Optional Fieldbus-Gateways

Optional gateway modules allow integration of the GMA 200-MW system into existing company networks based on TCP/IP, Process Field Bus or Process Field Network protocols. Monitoring and system performance data are easily exported for viewing or analysis. A wifi interface can be added to the gateway to allow wireless connection with a touch screen Windows® computer or smart-phone to display or access system information.

GMA 200 power options

GMA 200-MW power options include traditional voltage inputs (2 x 24 V DC, 20-30 V), as well as operation via a redundant, uninterruptible power supply (UPS), ensuring continued operation of the gas warning system even during a power outage.

Integral alarms

The GMA 200-MW includes built-in bright LED strobe light and loud audible alarms.

LED indicator lights

The status of the GMA 200-MW system (including operation, fault, service, alarm and relay status) is shown via LEDs. Individual LED indicators identify the type and severity of the alarm condition, (FLT, AL1, AL2, AL3), and any relays activated by the condition, (R1 through R8).

Datalogging standard

Measured values, mean values, alarm events and faults are permanently stored on a microSD memory card.

Graphical display

Currently measured values are displayed on a backlit, graphical LCD. In the event of an alarm the display changes color from green to red, and highlights the affected channels.

Five buttons enable operation at the GMA 200-MW controller. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the controller, detector and the relays can be retrieved in the operating menu.

Operation via keypad

Operation of the GMA 200-MW is through easy-to-use menus, and a simple 5 button interface for alarm acknowledgement, and viewing information on the status of the gas warning system, detectors and relays. The intuitive push-button controls make it easy to navigate through additional screens of information. The integrated display enables the reading of alarm levels through the controller LCD for easy hazard assessment.

Configuration

A built-in USB port in the GMA 200-MW is used for connection to the configuration software. GMA 200-MW systems connected through a Fieldbus gateway can be remotely connected with a GfG factory service center for configuration, diagnostic or service evaluation.

Easy and convenient service

GfG offers full after-the-sale commissioning and field service support.

Additional modules available in IP-65 wall-mounting housings

• External relay module: GMA 200-RW
• Independent power supply: GMA 200-UPS
• Continuous, motorized pump sampling unit: GMA 200-ASV
• Fieldbus gateway: GMA 200-GW

Features

• Advanced and flexible controller for combustible, O₂ and toxic gas
• IP-65 wall-mounting housing, with integral audible and LED alarms
• Flexible, reliable and economic
• Up to 16 transmitters per GMA 200-MW controller in any combination
• Freely programmable relays
• Clearly structured, easy-to-use push-button interface
• Backlit graphic LCD changes color to indicate alarm
• Connect to other measurement devices with 4-20 mA output

G460-01-03-10-64-44 G460 Multi-Gas Detector with Alkaline Smart Pump and NiMH Battery with Flashlights, O2, Infrared LEL Sensor / % Vol., CO and H2S Sensor, SO2, CO2, NDIR by GfG

For over 50 years, GfG Instrumentation has worked to develop the most reliable and effective equipment for gas detection and measurement technology. Developed by a team of highly experienced scientists and specially trained engineers, GfG products are high quality reliable instruments designed to meet the unique needs of potentially hazardous worksite. With the introduction of the G460 Multi-Gas Detector, GfG Instrumentation is continuing the trend.

G460 Multi-Gas Detector

The G460 Multi-Gas Detector is a compact and robust system with the capabilities of detecting up to six different gases and simultaneously displaying the readings. The portable detector features a user friendly and intuitive interface to simplify the day to day operations.

Ease of Use

For typical daily operations, the G460 Multi-Gas Detector operates with a single button. The complete user interface can provide access to advanced setup options with three buttons. The unit also features easy calibration operation. Simply attach the calibration adapter and apply gas. The G460 will automatically perform the appropriate adjustments. The detector will then store the dates of the three most recent calibrations for each sensor.

The G460 also features a large easy to read tricolor display which uses a color code to indicate the alarm severity. From green to orange to red, the tricolor display is intuitive and incredibly user friendly. The display feature can also flip or zoom with the touch of a button. The G460 multi-faceted alarm system also includes an ultra loud audible buzzer at 103 dB, a standard vibration mechanism, and 360 bright LED alerts (the LED alerts can also be equipped to function as flashlights). This multi-faceted system is sure to alert users and those nearby of the potential hazardous conditions. For smooth and continuous operations, the G460 Multi-Gas Detector uses interchangeable alkaline and rechargeable battery packs that provide up to 25 hours of continuous operation. Using a drop in cradle charger, the rechargeable pack can completely recharge in less than 4 hours.

G460 Multi-Gas Detector Features

The G460 Multi-Gas Detector features a motorized pump with a built-in diffusion or sample draw mode switch. The hose is easily attachable and can draw from 100 feet away. The hose is powered by its own battery pack that provides 20 hours of continuous operation. The multi-gas detector also features the widest range of sensors on the market. The compatible long lasting (and interchangeable) smart sensors include LEL, SO2, O2, H2, H2S, NO, CO, O3, HF, NH3, CIO2, CI2, PH3, ETO, HCN, and NO2. Users can purchase additional sensors to help customize the unit such as infrared sensors for the measurement of CO2 and photoionization sensors for volatile organic chemical hazards. The G460 has standard data logging capabilities that store up to 55 hours of the most recent activities. Alarm activations gas thresholds and stored permanently in the internal memory. Employers can download all internal information to generate reports and monitor results.

2200-012 GMA 200-MT16/12 GMA 200 Controller, Configured for 12 Measuring Points by GfG

For more than 50 years, the key goal of GfG has been to meet the highest demands of occupational health and safety, industrial equipment reliability and environmental protection. This goal has been reached by developing innovative and reliable gas warning systems. Development of the new GMA 200 gas warning system satisfies these requirements while taking into account suitability testing in line with ATEX Directive 94/9/EC. If switching functions for explosion protection are required, the GMA 200 gas warning system is the optimal solution. It also meets the requirements for gas warning systems without necessary ATEX certification and functional safety requirements (SIL).

Design of the GMA 200 gas warning system

The design of the GMA 200 gas warning system ensures flexible and simple operation in industrial and commercial applications for measuring combustible and toxic gases / vapors, and for measuring oxygen concentrations. The compact design of the GMA 200 as a DIN rail module enables cost-effective and space-saving installation.

Modular design of the GMA 200 MT6 / MT16 gas warning system

Up to 16 detectors can be connected to the GMA 200 gas warning system. A software program enables the quick and easy configuration of the measuring points for already installed GMA 200 gas warning systems. Measuring point designations, the detector type, the type of gas and measuring range as well as three individual or specified alarm thresholds can be programmed for each measuring point using the configuration software. A microprocessor evaluates the analog input signals of the connected detectors.

Integrated relays

As a result of the increasing requirements being placed on safety measures, even redundant protection against gas hazards, complex gas warning systems are in demand. The GMA 200 gas warning system is equipped with 8 internal relays. 6 relays can be freely configured using the software program in order to implement safety measures and alarms. The configuration software offers numerous and flexible options, such as the assignment of one or several measuring points to relays, single alarms per measuring point and alarm threshold, configuration of collective or group alarms and fault messages and voting functions. Two further relays are available for safety-related fault messages and for maintenance.

Relay modules

Using a GMA RT relay module, it is possible to extend the GMA 200 gas warning system by 16 additional freely configurable relays. A total of 4 additional relay modules and thus 64 additional relays can be managed via the GMA 200 gas warning system. Digital connection of the GMA RT relay module to the GMA 200 gas warning system enables the local positioning of the relay modules. The local and thus flexible installation of the relay modules results in large cost savings due to reduced cabling and assembly functions.

Availability of the gas warning system

Besides the traditional voltage supply, the GMA 200 gas warning system can also be operated with a redundant, safety-related voltage supply and therefore meets the highest demands of functional safety and the required permanent availability of gas warning systems for detecting potential gas hazards.

System functions: LED displays

The status of the GMA 200 gas warning system operation, fault, service is shown via LEDs.

Graphical display

The clearly structured layout of the GMA 200 gas warning system enables the quick detection of hazardous situations. Currently measured values are permanently displayed on the LCD graphical display. In the event of gas alarms, the display lighting is automatically activated with a red background.

Additionally, the LED display for Alarm 1, Alarm 2, Alarm 3 is shown. In the event of an alarm, the status of the active relays 1-8 is displayed simultaneously via LEDs.

The integrated memory enables the reading of alarm levels and minimum / maximum values per measuring point at the LCD for an initial, quick hazard assessment.

Data logger function

The GMA 200 gas warning system can be equipped with a micro SD card for saving the measured values. The measured values, mean values, alarm events and faults are permanently stored at individually configurable intervals, and can be read out for evaluation.

Operation via keyboard

Five buttons enable operation at the GMA 200 gas warning system. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the gas warning system, detector and the relays can be retrieved in the operating menu.

Configuration

A USB port at the GMA 200 gas warning system can be used for connection to the configuration software.

Features

• A variety of transmitters can be connected for measurement of combustible, toxic gases/vapors and oxygen
• Multiple relay configurations
• Flexible, reliable and economic
• Intuitive, backlit graphical LCD with "traffic light function" (green, amber, red)
• SIL certification
• DIN rail mounting

2200-014W GMA 200-MW16 Controller, Configured for 14 Measuring Points, Supply Voltage 24 V/DC, without Power Supply by GfG

The GMA 200-MW is our most flexible and advanced gas detection system controller. The design of the GMA 200-MW ensures simple and clearly structured operation in industrial and commercial applications. The system can be configured for control of any combination of GfG gas transmitters for the measurement of an extremely wide range of toxic and combustible gases and vapors.

Flexible modular design

Each GMA 200-MW module can control up to 16 individual gas transmitters (sensors). The self-contained, IP-65 wall-mounted housing facilitates cost-effective and space-saving installation. GMA 200-MW systems are scalable, and easy to expand by adding additional controller and relay modules. Optional gateway modules allow control via remote or touch-screen computer interface.

Easy to configure

Easy-to-use, menu driven GMA 200-MW software allows configuration of sensor type, gas type, measuring point designations, units of measurement, calibration curves, and function of the comprehensive and fully programmable relays. Up to three individual or specified alarm thresholds can be programmed for each measuring point. The GMA 200-MW continuously evaluates the analog input signals of the connected detectors.

Integrated relays

GMA 200-MW systems include comprehensive and fully programmable relays. Each controller is equipped with 8 internal relays. Menu-driven software allows easy assignment of measuring points to relays, single or multiple alarms per point, alarm thresholds, configuration of collective or group alarms, zoning, fault messages and voting functions.

Relay modules

GMA 200-RW relay modules are housed in easy to install IP-65 wall mounted enclosures. Each relay module provides an additional 16 freely configurable relays. A total of four additional relay modules (for 64 additional relays) can be managed by the same GMA 200-MW system. Digital connection with the GMA 200-MW controller allows remote positioning of the relay module wherever it makes the most sense, substantially reducing cabling and installation costs.

Remote terminal displays

Relay modules are available with or without an integral display for readings and system information, making it easy to add a remote terminal wherever needed.

Optional Fieldbus-Gateways

Optional gateway modules allow integration of the GMA 200-MW system into existing company networks based on TCP/IP, Process Field Bus or Process Field Network protocols. Monitoring and system performance data are easily exported for viewing or analysis. A wifi interface can be added to the gateway to allow wireless connection with a touch screen Windows® computer or smart-phone to display or access system information.

GMA 200 power options

GMA 200-MW power options include traditional voltage inputs (2 x 24 V DC, 20-30 V), as well as operation via a redundant, uninterruptible power supply (UPS), ensuring continued operation of the gas warning system even during a power outage.

Integral alarms

The GMA 200-MW includes built-in bright LED strobe light and loud audible alarms.

LED indicator lights

The status of the GMA 200-MW system (including operation, fault, service, alarm and relay status) is shown via LEDs. Individual LED indicators identify the type and severity of the alarm condition, (FLT, AL1, AL2, AL3), and any relays activated by the condition, (R1 through R8).

Datalogging standard

Measured values, mean values, alarm events and faults are permanently stored on a microSD memory card.

Graphical display

Currently measured values are displayed on a backlit, graphical LCD. In the event of an alarm the display changes color from green to red, and highlights the affected channels.

Five buttons enable operation at the GMA 200-MW controller. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the controller, detector and the relays can be retrieved in the operating menu.

Operation via keypad

Operation of the GMA 200-MW is through easy-to-use menus, and a simple 5 button interface for alarm acknowledgement, and viewing information on the status of the gas warning system, detectors and relays. The intuitive push-button controls make it easy to navigate through additional screens of information. The integrated display enables the reading of alarm levels through the controller LCD for easy hazard assessment.

Configuration

A built-in USB port in the GMA 200-MW is used for connection to the configuration software. GMA 200-MW systems connected through a Fieldbus gateway can be remotely connected with a GfG factory service center for configuration, diagnostic or service evaluation.

Easy and convenient service

GfG offers full after-the-sale commissioning and field service support.

Additional modules available in IP-65 wall-mounting housings

• External relay module: GMA 200-RW
• Independent power supply: GMA 200-UPS
• Continuous, motorized pump sampling unit: GMA 200-ASV
• Fieldbus gateway: GMA 200-GW

Features

• Advanced and flexible controller for combustible, O₂ and toxic gas
• IP-65 wall-mounting housing, with integral audible and LED alarms
• Flexible, reliable and economic
• Up to 16 transmitters per GMA 200-MW controller in any combination
• Freely programmable relays
• Clearly structured, easy-to-use push-button interface
• Backlit graphic LCD changes color to indicate alarm
• Connect to other measurement devices with 4-20 mA output

2200-011 GMA 200-MT16/11 GMA 200 Controller, Configured for 11 Measuring Points by GfG

For more than 50 years, the key goal of GfG has been to meet the highest demands of occupational health and safety, industrial equipment reliability and environmental protection. This goal has been reached by developing innovative and reliable gas warning systems. Development of the new GMA 200 gas warning system satisfies these requirements while taking into account suitability testing in line with ATEX Directive 94/9/EC. If switching functions for explosion protection are required, the GMA 200 gas warning system is the optimal solution. It also meets the requirements for gas warning systems without necessary ATEX certification and functional safety requirements (SIL).

Design of the GMA 200 gas warning system

The design of the GMA 200 gas warning system ensures flexible and simple operation in industrial and commercial applications for measuring combustible and toxic gases / vapors, and for measuring oxygen concentrations. The compact design of the GMA 200 as a DIN rail module enables cost-effective and space-saving installation.

Modular design of the GMA 200 MT6 / MT16 gas warning system

Up to 16 detectors can be connected to the GMA 200 gas warning system. A software program enables the quick and easy configuration of the measuring points for already installed GMA 200 gas warning systems. Measuring point designations, the detector type, the type of gas and measuring range as well as three individual or specified alarm thresholds can be programmed for each measuring point using the configuration software. A microprocessor evaluates the analog input signals of the connected detectors.

Integrated relays

As a result of the increasing requirements being placed on safety measures, even redundant protection against gas hazards, complex gas warning systems are in demand. The GMA 200 gas warning system is equipped with 8 internal relays. 6 relays can be freely configured using the software program in order to implement safety measures and alarms. The configuration software offers numerous and flexible options, such as the assignment of one or several measuring points to relays, single alarms per measuring point and alarm threshold, configuration of collective or group alarms and fault messages and voting functions. Two further relays are available for safety-related fault messages and for maintenance.

Relay modules

Using a GMA RT relay module, it is possible to extend the GMA 200 gas warning system by 16 additional freely configurable relays. A total of 4 additional relay modules and thus 64 additional relays can be managed via the GMA 200 gas warning system. Digital connection of the GMA RT relay module to the GMA 200 gas warning system enables the local positioning of the relay modules. The local and thus flexible installation of the relay modules results in large cost savings due to reduced cabling and assembly functions.

Availability of the gas warning system

Besides the traditional voltage supply, the GMA 200 gas warning system can also be operated with a redundant, safety-related voltage supply and therefore meets the highest demands of functional safety and the required permanent availability of gas warning systems for detecting potential gas hazards.

System functions: LED displays

The status of the GMA 200 gas warning system operation, fault, service is shown via LEDs.

Graphical display

The clearly structured layout of the GMA 200 gas warning system enables the quick detection of hazardous situations. Currently measured values are permanently displayed on the LCD graphical display. In the event of gas alarms, the display lighting is automatically activated with a red background.

Additionally, the LED display for Alarm 1, Alarm 2, Alarm 3 is shown. In the event of an alarm, the status of the active relays 1-8 is displayed simultaneously via LEDs.

The integrated memory enables the reading of alarm levels and minimum / maximum values per measuring point at the LCD for an initial, quick hazard assessment.

Data logger function

The GMA 200 gas warning system can be equipped with a micro SD card for saving the measured values. The measured values, mean values, alarm events and faults are permanently stored at individually configurable intervals, and can be read out for evaluation.

Operation via keyboard

Five buttons enable operation at the GMA 200 gas warning system. The main functions of the keyboard are the acknowledgement of alarms and the menu-driven operation. Information on the status of the gas warning system, detector and the relays can be retrieved in the operating menu.

Configuration

A USB port at the GMA 200 gas warning system can be used for connection to the configuration software.

Features

• A variety of transmitters can be connected for measurement of combustible, toxic gases/vapors and oxygen
• Multiple relay configurations
• Flexible, reliable and economic
• Intuitive, backlit graphical LCD with "traffic light function" (green, amber, red)
• SIL certification
• DIN rail mounting

4021-DPX-PR RAM 4021 Respiratory Air Monitor, Carbon Monoxide (CO) and Dew Point, Complies with NFPA 99 C-26 (5.1.3.5-15) by GfG

The RAM 4021 AutoCal® series is the unit of choice where specific and accurate measurement of carbon monoxide, oxygen or dew-point levels are required. Designed to meet OSHA requirements for monitoring of Grade D respirable air, this unit is equipped with a reliable electrochemical sensor that accurately indicates the level of carbon monoxide on an illuminated liquid crystal display. Adding versatility, this unit offers optional oxygen or dew point sensors for applications where detection or measurement is needed.

Calibration and maintenance are simple with our innovative AutoCal® system. Additional features including alarm relay contacts, user adjustable alarm point, low flow alarm indicator and many more make this unit an intelligent choice. The RAM 4021 is available in four models, the 4021 (CO), 4021-1 (CO and O2), 4021-DPX (CO and dew point levels) and 4021-PR (CO and additional relay to signal power loss to monitor, complies with newest NFPA regulation). All models may be purchased with or without airline filter systems

Respiratory air specifications

All GfG Instrumentation RAM Instruments satisfy the requirements of OSHA rule 29 CFR 1910.134 (d) (2) (ii) for carbon monoxide monitoring. They will also monitor Grade E air, generally specified for breathing air in cylinders (SCBA).

Wall mounted filter panel option

The 25, 50 and 100 CFM panels filter out dangerous toxins from supplied air sources and ensure clean, breathable air. The threestage filter system efficiently removes particulates, oil vapors and hydrocarbons from an air supply. After filtration, the regulator sets the pressure for the respiratory equipment and the manifold assembly provides multiple outlets for airline hose quick connections. The model 8025 panel includes two user female quick connect outlets; the 8050 includes four, and the 8100 includes eight. A 1/2" FPT connection is standard on all 50 and 100 CFM panels, and a 3/8" FPT connection is standard on all 25 CFM panels.

Features

• Continuous compressed air CO monitor
• Integrated dew point measurement
• Robust easy-to-operate design

Features

• RAM 4021 Monitor
• Carbon monoxide (CO) sensor
• Other sensors (as specified)
• Manual

4000-1144 4000 Series Integrated Controller, 10 Channels, 5 Amp Power Supply by GfG

The 4100 one-channel and the 4-channel 4400 gas warning systems offer safe and reliable gas detection

Alarm points

Each alarm can be adjusted separately. False alarms are eliminated with the adjustable alarm delay. The alarm point values can be freely adjusted within the detection range of the transmitter. Every alarm point value can be selected to be latching / non-latching or resettable / non resettable.

Alarm relays

The controller provides four voltage-free relays for the three alarms in addition to one fault warning. The relays may be used to control additional alarm devices like lights or horns. They can even prompt specific counter measures to prevent or limit dangers from gases or vapors.

Additional features

The 4100 control panel stores peak values and offers an additional 4-20 mA output. The 4400 control panel offers the ability to connect up to 4 transmitters and comes standard with an additional 24 VAC output for solenoid control.

Features

• Complete 1-to-4 channel controller / gas monitoring system
• 110 VAC or 24 VAC
• Case-mounted horn / strobe
• Security lock
• Slim-line design

4421-1-2 4400-C 4-channel Controller Panel with Two ZD 21 Transmitters by GfG

The 4100 one-channel and the 4-channel 4400 gas warning systems offer safe and reliable gas detection.

Alarm points

Each alarm can be adjusted separately. False alarms are eliminated with the adjustable alarm delay. The alarm point values can be freely adjusted within the detection range of the transmitter. Every alarm point value can be selected to be latching / non-latching or resettable / non resettable.

Alarm relays

The controller provides four voltage-free relays for the three alarms in addition to one fault warning. The relays may be used to control additional alarm devices like lights or horns. They can even prompt specific counter measures to prevent or limit dangers from gases or vapors.

Features

• Complete 1-to-4 channel controller / gas monitoring system
• 110 VAC or 24 VAC
• Case-mounted horn / strobe
• Security lock
• Slim-line design

Additional features

The 4100 control panel stores peak values and offers an additional 4-20 mA output. The 4400 control panel offers the ability to connect up to 4 transmitters and comes standard with an additional 24 VAC output for solenoid control.

2901-37-006 IR 29 e (Increased Safety) Transmitter with Pressure & Humidity Compensation, IP 67, Propane (C₃H₈), 0 - 100% LEL Range, No Display / 4-20 mA by GfG

Unlike traditional LEL sensors, IR 29 transmitters do not need the presence of oxygen to detect gas. Since they are not affected by sensor poisons they don't require periodic adjustment to make up for lost sensitivity. The IR 29 continuously monitors its functions for proper performance, and can even identify and communicate required service procedures.

Features

• ATEX: II II 2G Ex eb mb ib [ib] IIC T4 Gb
• Patented infrared technology (NDIR)
• Temperature, moisture and pressure compensation
• Maintenance and service-friendly
• 4-20 mA, linear or digital (Modbus interface)

2901-09-006 IR 29 e (Increased Safety) Transmitter with Pressure & Humidity Compensation, IP 67, Methane (CH₄), 0 - 100% LEL Range, No Display / 4-20 mA by GfG

Unlike traditional LEL sensors, IR 29 transmitters do not need the presence of oxygen to detect gas. Since they are not affected by sensor poisons they don't require periodic adjustment to make up for lost sensitivity. The IR 29 continuously monitors its functions for proper performance, and can even identify and communicate required service procedures.

Features

• ATEX: II II 2G Ex eb mb ib [ib] IIC T4 Gb
• Patented infrared technology (NDIR)
• Temperature, moisture and pressure compensation
• Maintenance and service-friendly
• 4-20 mA, linear or digital (Modbus interface)

4000-1440 4000 Series Integrated Controller, 9 Channels, 5 Amp Power Supply by GfG

The 4100 one-channel and the 4-channel 4400 gas warning systems offer safe and reliable gas detection

Alarm points

Each alarm can be adjusted separately. False alarms are eliminated with the adjustable alarm delay. The alarm point values can be freely adjusted within the detection range of the transmitter. Every alarm point value can be selected to be latching / non-latching or resettable / non resettable.

Alarm relays

The controller provides four voltage-free relays for the three alarms in addition to one fault warning. The relays may be used to control additional alarm devices like lights or horns. They can even prompt specific counter measures to prevent or limit dangers from gases or vapors.

Additional features

The 4100 control panel stores peak values and offers an additional 4-20 mA output. The 4400 control panel offers the ability to connect up to 4 transmitters and comes standard with an additional 24 VAC output for solenoid control.

Features

• Complete 1-to-4 channel controller / gas monitoring system
• 110 VAC or 24 VAC
• Case-mounted horn / strobe
• Security lock
• Slim-line design