GfG

1418-105 Micro IV Single Gas Detector with 3-Year Sensor Warranty, Carbon Monoxide (CO), 0 - 300 ppm by GfG

Durable, compact design

Widest Range of sensors

Easy Operation

Up to six months of battery life

Clip-on attachment

Optional motorized pump

Large graphic display

Audible, vibrating and visual alarms

Lifetime warranty

DS220 docking station

Features

• Highly configurable smart sensor design
• Wide range of sensors including O₂, H₂S, CO, NH₃, SO₂, CL₂, CLO₂, PH₃, NO₂, HCN, HCl, ETO, HF, O₃, NO, H₂, THT and more!
• Full 3-year warranty on O₂, CO and H₂S sensors
• Optional sample draw pump
• Large display with real-time readout
• Event / Datalogging standard
• Programmable ceiling (3), STEL & TWA alarms
• Vibrating Alarm standard
• AutoCal® automatic calibration
• Optional docking station

Standard Accessories

• Micro IV detector
• Specified Sensor
• Alkaline Battery
• Rubber Boot
• Manual

2801-31-001 CC 28 Fixed Gas Transmitter with Gas Optimized Catalytic Sensor 0-100% LEL (MK 208-1), Heptane (C7H16), No Display by GfG

Superior technology

In areas where combustible gas or vapor hazards may exist, GfG s new CC 28 combustible transmitter is the perfect choice for reliable area monitoring. With its proven design, this ATEX certified transmitter offers an integrated explosion-proof buzzer and bright-alarm LEDs for reliable warning of combustible gas hazards (even in hazardous locations). This superior design provides warnings for immediate personnel, and ensures entire plant safety.

Easy handling

Smart sensor technology allows easy installation. Sensor replacement takes only a few seconds-simply plug in the sensor. User adjustments are performed at the transmitter with simple touch keys, or with the optional remote control interface (one person calibration).

RC2 remote control

Several combustible gases are lighter than air. With the transmitter mounted close to the ceiling, calibration can be difficult. The remote control for the CC 28 allows you to perform calibration or zero adjustments without the need of a ladder or lift. A flexible cable connects the remote control to the transmitter and displays the same reading as the display on the transmitter. With the remote control inspection,service and calibration can be performed easily by one person.

The sensor and the integrated temperature compensation provide highest measurement accuracy.

Low maintenance requirements and long sensor life reduce your cost of ownership. Just sign a service contract and don t worry about any problems. We will service your system at regular intervals.

Models

Model CC 28D allows you to read the gas concentration both at the transmitter and at the GMA controller.With the RC2 remote control - the CC 28 is easy to use and to operate even if it is mounted at the ceiling.

Model CC 28DA provides additional warning with bright integrated alarm LEDs and a buzzer.

Features

• Full-featured smart transmitter for combustible gas measurement
• Non-intrusive calibration adjustment
• Expected sensor life of 5 years
• Increased safety design to reduce installation cost in potentially hazardous locations
• ATEX EEx dem [1b] IIC T4
• Proprietary, high performance combustible gas sensor
• Available in three configurations: Blind (no display), Display, Display with local alarms

Advantages at a glance

• Display of gas concentration at transmitter or remote control
• ATEX II G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need of expensive EX-proof buzzer or wiring
• Easy sensor replacement with plug-in sensors
• Long life sensor
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments by means of touch keys or remote control without opening the casing
• Easy handling even at hard-to-reach accessible transmitter positions.

2811-707-002 EC 28 Gas Transmitter with Sensor, Carbon Monoxide (CO), Display by GfG

Advanced Technology

Wherever hazards are expected, the EC 28 transmitter and GfG s proven monitoring systems are the right choice for reliable surveillance. The ATEX-certified design, an integrated, Ex-proof buzzer, and bright alarm LEDs provide the highest safety in hazardous areas by including visual and audible alarms. The gas alarm not only alerts the person in the control room of hazards, but also the person on-site.

Easy handling

Smart sensor technology allows a user to install the transmitter or to replace a sensor within a few seconds just plug the sensor into the transmitter. Adjustments are done directly at the transmitter using touch keys or with the remote control (one-person calibration).

Remote Control RC2

Ammonia and hydrogen are lighter than air. With the transmitter installed close to the ceiling, GfG can provide permanently connected cables with plugs for the remote control, which allow the user to do all adjustments without having to climb a ladder. In addition, one remote control can be used for several transmitters, which helps cut costs and increase efficiency.

The remote control display is always identical to that of the transmitter, making inspection, service, and calibration considerably simple.

The remote control reads the current gas concentration and can be used as an external display.

Integrated Alarm Saves Money on Ex-proof Alarm and Wiring!

The EC 28 D model shows the current gas concentration on-site at the display of the transmitter and also at GfG s GMA controller.

The EC 28 DAprovides additional bright alarm LEDs and a buzzer avoiding costs for a separate Ex-proof horn and an Ex-proof light. You also save money on wiring to connect the controller and alarm devices.

In combination with GfG's flexible control units, the EC 28 provides various possibilities for reliable and cost-effective gas monitoring.

Reliable Measurement, Increased Safety, Minimized Cost of Operation

Accurate sensors and integrated temperature compensation provide the highest measurement accuracy. Low maintenance requirements and the long sensor life reduce your cost of ownership.

Features

• Reading of gas concentration at transmitter display
• Ex-proof visual and audible alarms
• ATEX certificate II 1 G EEx ia IIC T4 / II 2 G EEx em [ib] IIC T4
• One-person calibration at transmitter using touch keys or remote control
• Plug-in smart sensor sensor replacement without opening the casing

Advantages

• Concentration display at transmitter or at remote control
• ATEX II 1 G EEx ia IIC T4 / II 2 G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need for expensive Ex-proof buzzer or wiring
• Easy sensor replacement by means of plug-in smart sensors
• Long sensor life
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments without opening the casing using touch keys or remote control; easy handling even for hardto-reach transmitter positions

2200-009 GMA 200-MT16/9 GMA 200 Controller, Configured for 9 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

2212004 CI 21 Fixed Gas Transmitter with External Sensor, Ammonia (NH3), 0 to 200 ppm by GfG

The charge carrier injection (CI 21) sensor is a progressive development to improve upon current ammonia refrigeration detection methods. With CI 21 technology sensor life is no longer limited to ammonia exposure levels. This reduces replacement costs associated with electrochemical sensors.

Charge carrier injection technology also eliminates false alarms frequently associated with metal oxide sensing (MOS). These, along with other features, provide reliable, cost effective, longterm safety.

The CI 21 transmitter is an advanced development to which all other ammonia transmitters will be compared.

• Stable long-life charge-carrierinjection sensor
• Sensor is unaffected by exposure to high gas concentrations
• Low temperature operation to -40oF
• Low cross-sensitivity
• Eliminates costly false alarms
• Low cost of ownership

2801-38-002 CC 28 Fixed Gas Transmitter with Gas Optimized Catalytic Sensor 0-100% LEL (MK 208-1), Propylene (C3H6), Display by GfG

Superior technology

In areas where combustible gas or vapor hazards may exist, GfG s new CC 28 combustible transmitter is the perfect choice for reliable area monitoring. With its proven design, this ATEX certified transmitter offers an integrated explosion-proof buzzer and bright-alarm LEDs for reliable warning of combustible gas hazards (even in hazardous locations). This superior design provides warnings for immediate personnel, and ensures entire plant safety.

Easy handling

Smart sensor technology allows easy installation. Sensor replacement takes only a few seconds-simply plug in the sensor. User adjustments are performed at the transmitter with simple touch keys, or with the optional remote control interface (one person calibration).

RC2 remote control

Several combustible gases are lighter than air. With the transmitter mounted close to the ceiling, calibration can be difficult. The remote control for the CC 28 allows you to perform calibration or zero adjustments without the need of a ladder or lift. A flexible cable connects the remote control to the transmitter and displays the same reading as the display on the transmitter. With the remote control inspection,service and calibration can be performed easily by one person.

The sensor and the integrated temperature compensation provide highest measurement accuracy.

Low maintenance requirements and long sensor life reduce your cost of ownership. Just sign a service contract and don t worry about any problems. We will service your system at regular intervals.

Models

Model CC 28D allows you to read the gas concentration both at the transmitter and at the GMA controller.With the RC2 remote control - the CC 28 is easy to use and to operate even if it is mounted at the ceiling.

Model CC 28DA provides additional warning with bright integrated alarm LEDs and a buzzer.

Features

• Full-featured smart transmitter for combustible gas measurement
• Non-intrusive calibration adjustment
• Expected sensor life of 5 years
• Increased safety design to reduce installation cost in potentially hazardous locations
• ATEX EEx dem [1b] IIC T4
• Proprietary, high performance combustible gas sensor
• Available in three configurations: Blind (no display), Display, Display with local alarms

Advantages at a glance

• Display of gas concentration at transmitter or remote control
• ATEX II G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need of expensive EX-proof buzzer or wiring
• Easy sensor replacement with plug-in sensors
• Long life sensor
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments by means of touch keys or remote control without opening the casing
• Easy handling even at hard-to-reach accessible transmitter positions.

2901-21-006 IR 29 e (Increased Safety) Transmitter with Pressure & Humidity Compensation, IP 67, Acetylene (C₂H₂), 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)

2811-709-003 EC 28 Gas Transmitter with Sensor, Chlorine (Cl2), Display / Alarm by GfG

Advanced Technology

Wherever hazards are expected, the EC 28 transmitter and GfG s proven monitoring systems are the right choice for reliable surveillance. The ATEX-certified design, an integrated, Ex-proof buzzer, and bright alarm LEDs provide the highest safety in hazardous areas by including visual and audible alarms. The gas alarm not only alerts the person in the control room of hazards, but also the person on-site.

Easy handling

Smart sensor technology allows a user to install the transmitter or to replace a sensor within a few seconds just plug the sensor into the transmitter. Adjustments are done directly at the transmitter using touch keys or with the remote control (one-person calibration).

Remote Control RC2

Ammonia and hydrogen are lighter than air. With the transmitter installed close to the ceiling, GfG can provide permanently connected cables with plugs for the remote control, which allow the user to do all adjustments without having to climb a ladder. In addition, one remote control can be used for several transmitters, which helps cut costs and increase efficiency.

The remote control display is always identical to that of the transmitter, making inspection, service, and calibration considerably simple.

The remote control reads the current gas concentration and can be used as an external display.

Integrated Alarm Saves Money on Ex-proof Alarm and Wiring!

The EC 28 D model shows the current gas concentration on-site at the display of the transmitter and also at GfG s GMA controller.

The EC 28 DAprovides additional bright alarm LEDs and a buzzer avoiding costs for a separate Ex-proof horn and an Ex-proof light. You also save money on wiring to connect the controller and alarm devices.

In combination with GfG's flexible control units, the EC 28 provides various possibilities for reliable and cost-effective gas monitoring.

Reliable Measurement, Increased Safety, Minimized Cost of Operation

Accurate sensors and integrated temperature compensation provide the highest measurement accuracy. Low maintenance requirements and the long sensor life reduce your cost of ownership.

Features

• Reading of gas concentration at transmitter display
• Ex-proof visual and audible alarms
• ATEX certificate II 1 G EEx ia IIC T4 / II 2 G EEx em [ib] IIC T4
• One-person calibration at transmitter using touch keys or remote control
• Plug-in smart sensor sensor replacement without opening the casing

Advantages

• Concentration display at transmitter or at remote control
• ATEX II 1 G EEx ia IIC T4 / II 2 G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need for expensive Ex-proof buzzer or wiring
• Easy sensor replacement by means of plug-in smart sensors
• Long sensor life
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments without opening the casing using touch keys or remote control; easy handling even for hardto-reach transmitter positions

G450-11440 G450 Multi-Gas Detector with Flashlight Rechargeable Battery, O2, LEL, CO, H2S by GfG

GfG is one of the industry s leading producers of workplace safety products. Their products are safe, reliable, and customizable. Their state of the art research and development facility produces the most advanced products on the market. Additionally, their dedicated team of safety professionals works to ensure that each product can be equipped with customization tools and modifications to ensure that each product can be optimized to meet the most rigorous workplace safety standards. Introducing the G450 Multi-gas Detector, GfG is continuing its legacy as a safety leader.

G450 Multi-gas Detector

The G450 Multi-gas Detector continually measures up to four separate atmospheric gases. In confined spaces, the detector will monitor LEL combustible gas, oxygen, H2S, and CO. The easy to use G450 series of detectors is designed with user friendliness in mind. Many of its most common functions are operated with a single button, and the unit features a fully automatic calibration system. Users need only to attach the adaptor and flow gas to the sensors. The unit s GfG AutoCal system will automatically initiate the calibration sequence and will update the necessary information on the G450 Multi-gas Detector.

Long Battery Life

The G450 Multi-gas Detector also features a long life battery operation that is most efficient for workplace safety. The device has a batter life of up to 25 hours of continuous operation. With alkaline packs, the units are powered by 2 AA batteries, and when placed in the drop in cradle, the rechargeable battery packs can be fully recharged in less than 4 hours. The rechargeable packs have optional flash light LEDs to indicate charge level.

Triple Alarm System

This unit features an elaborate alarm system that is not to be missed. The triple alarm system features a loud audible alarm of 103dB, a vibrating alarm, and bright 360 wrap around LEDs with a colored backlit display for visual alarms. The alarm system ensures that users and those nearby are fully aware of possible environmental hazards. Additionally, the easy to read backlit display will light varying colors from green, orange, and red to intuitively notify users of the severity of the conditions.

Features

The G450 Multi-gas Detector is encased in a dust proof and highly water resistant housing. The housing even contains a built in rubber boot to help protect from regular wear and tear. Each unit is equipped with datalogging capabilities. The datalogger records and internally stores all activity and environmental conditions. Users can download this information to their computers and use it to research, analyze, and evaluate the jobsite environment.

The multi-gas detection system comes standard with a few accessories including a calibration adaptor, a training manual, and a training DVD. The rechargeable devices include the previous accessories and additional drop in cradle chargers and a wall power adaptor. Optional accessories include a datalogging kit, self powered attachable motorized sample pump, spare battery packs, and rechargeable battery packs. The breadth of available accessories helps to ensure that the G450 Multi-gas Detector can be customized to meet the needs of individual work spaces.

2801-36-002 CC 28 Fixed Gas Transmitter with Gas Optimized Catalytic Sensor 0-100% LEL (MK 208-1), Pentane (C5H12), Display by GfG

Superior technology

In areas where combustible gas or vapor hazards may exist, GfG s new CC 28 combustible transmitter is the perfect choice for reliable area monitoring. With its proven design, this ATEX certified transmitter offers an integrated explosion-proof buzzer and bright-alarm LEDs for reliable warning of combustible gas hazards (even in hazardous locations). This superior design provides warnings for immediate personnel, and ensures entire plant safety.

Easy handling

Smart sensor technology allows easy installation. Sensor replacement takes only a few seconds-simply plug in the sensor. User adjustments are performed at the transmitter with simple touch keys, or with the optional remote control interface (one person calibration).

RC2 remote control

Several combustible gases are lighter than air. With the transmitter mounted close to the ceiling, calibration can be difficult. The remote control for the CC 28 allows you to perform calibration or zero adjustments without the need of a ladder or lift. A flexible cable connects the remote control to the transmitter and displays the same reading as the display on the transmitter. With the remote control inspection,service and calibration can be performed easily by one person.

The sensor and the integrated temperature compensation provide highest measurement accuracy.

Low maintenance requirements and long sensor life reduce your cost of ownership. Just sign a service contract and don t worry about any problems. We will service your system at regular intervals.

Models

Model CC 28D allows you to read the gas concentration both at the transmitter and at the GMA controller.With the RC2 remote control - the CC 28 is easy to use and to operate even if it is mounted at the ceiling.

Model CC 28DA provides additional warning with bright integrated alarm LEDs and a buzzer.

Features

• Full-featured smart transmitter for combustible gas measurement
• Non-intrusive calibration adjustment
• Expected sensor life of 5 years
• Increased safety design to reduce installation cost in potentially hazardous locations
• ATEX EEx dem [1b] IIC T4
• Proprietary, high performance combustible gas sensor
• Available in three configurations: Blind (no display), Display, Display with local alarms

Advantages at a glance

• Display of gas concentration at transmitter or remote control
• ATEX II G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need of expensive EX-proof buzzer or wiring
• Easy sensor replacement with plug-in sensors
• Long life sensor
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments by means of touch keys or remote control without opening the casing
• Easy handling even at hard-to-reach accessible transmitter positions.

2200-006W GMA 200-MW16 Controller, Configured for 6 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

Calibration Kits with gas include blow-molded case, 34 L carbon dioxide (CO2) calibration gas cylinders (1.5 % volume, and 3.0 % volume) 34 L zero air calibration gas, 0.5 lpm fixed flow regulator, calibration adapter, and tubing.

2109-500F EC 21 Fixed Gas Transmitter with Internal Sensor, Ammonia (NH3), 2 ppm, 0 - 500 ppm by GfG

GfG s EC 21 transmitter for detecting toxic gases in ambient air is an inexpensive gas detection solution for use in a wide variety of today's industrial applications.

Simple gas detection

The EC 21 is the simplest way to monitor ambient conditions. Simply attach the EC21 to a GfG controller or a PLC to continuously and efficiently monitor the concentration of hazardous toxic contaminants in the air.

The EC 21 is reverse-wire protected to prevent damage due to incorrect wiring of the device. The power connector hasa "quick disconnect" feature to simplify transmitter installation and service.

Mounting Position of the EC 21

To determine the mounting position of the EC 21 it is important to know and consider the ambient conditions. To achieve the best results, the ventilation conditions and the density of the gases need to be considered.

The EC 21 must be installed so that the gas reaches the sensor even in poorly ventilated areas. If necessary, check the area with a smoke cartridge.

Other influences such as water (rain, dripping or condensation) and dust need to be considered as well.

Features

• Simple to use and extremely economical
• Robust housing is corrosion resistant and dust-tight>
• Linear 4 to 20 mA output signal
• 18 - 24 VDC

2813-000-002 EC 28i Intrinsically Safe Transmitter with Sensor, Display by GfG

Features

• Full-featured smart transmitter for oxygen or a wide range of toxic gas measurement
• Non-intrusive AutoCal calibration adjustment
• Increased safety design to reduce installation cost in potentially hazardous locations
• Intrinsically safe (i) EX-Proof version
• BVS 04 ATEX E 132 X (electrical ex-protection) II 1G EEx ia IIC T4 C 0158
• Available in two configurations: Blind (no display), Display
• Barriers are required
• EX- conduit is not required
• Reduced installation costs

2901-21-004 IR 29 i Gas Transmitter without 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

2813-4505-001 EC 28i Intrinsically Safe Transmitter with Sensor, Ammonia (NH3), 0-500 ppm, No Display by GfG

Features

• Full-featured smart transmitter for oxygen or a wide range of toxic gas measurement
• Non-intrusive AutoCal calibration adjustment
• Increased safety design to reduce installation cost in potentially hazardous locations
• Intrinsically safe (i) EX-Proof version
• BVS 04 ATEX E 132 X (electrical ex-protection) II 1G EEx ia IIC T4 C 0158
• Available in two configurations: Blind (no display), Display
• Barriers are required
• EX- conduit is not required
• Reduced installation costs

2801-23-001 CC 28 Fixed Gas Transmitter with Gas Optimized Catalytic Sensor 0-100% LEL (MK 208-1), n-Butane (C4H10), No Display by GfG

Superior technology

In areas where combustible gas or vapor hazards may exist, GfG s new CC 28 combustible transmitter is the perfect choice for reliable area monitoring. With its proven design, this ATEX certified transmitter offers an integrated explosion-proof buzzer and bright-alarm LEDs for reliable warning of combustible gas hazards (even in hazardous locations). This superior design provides warnings for immediate personnel, and ensures entire plant safety.

Easy handling

Smart sensor technology allows easy installation. Sensor replacement takes only a few seconds-simply plug in the sensor. User adjustments are performed at the transmitter with simple touch keys, or with the optional remote control interface (one person calibration).

RC2 remote control

Several combustible gases are lighter than air. With the transmitter mounted close to the ceiling, calibration can be difficult. The remote control for the CC 28 allows you to perform calibration or zero adjustments without the need of a ladder or lift. A flexible cable connects the remote control to the transmitter and displays the same reading as the display on the transmitter. With the remote control inspection,service and calibration can be performed easily by one person.

The sensor and the integrated temperature compensation provide highest measurement accuracy.

Low maintenance requirements and long sensor life reduce your cost of ownership. Just sign a service contract and don t worry about any problems. We will service your system at regular intervals.

Models

Model CC 28D allows you to read the gas concentration both at the transmitter and at the GMA controller.With the RC2 remote control - the CC 28 is easy to use and to operate even if it is mounted at the ceiling.

Model CC 28DA provides additional warning with bright integrated alarm LEDs and a buzzer.

Features

• Full-featured smart transmitter for combustible gas measurement
• Non-intrusive calibration adjustment
• Expected sensor life of 5 years
• Increased safety design to reduce installation cost in potentially hazardous locations
• ATEX EEx dem [1b] IIC T4
• Proprietary, high performance combustible gas sensor
• Available in three configurations: Blind (no display), Display, Display with local alarms

Advantages at a glance

• Display of gas concentration at transmitter or remote control
• ATEX II G EEx dem [ib] IIC T4
• Ex-proof visual and audible alarms
• No need of expensive EX-proof buzzer or wiring
• Easy sensor replacement with plug-in sensors
• Long life sensor
• Low service requirement
• Permanent status and function display at transmitter
• Adjustments by means of touch keys or remote control without opening the casing
• Easy handling even at hard-to-reach accessible transmitter positions.