$750 - $1000, Fixed System Gas Monitors

Xgard Gas Detectors

Crowcon is a global leader in designing and manufacturing gas detection technology and equipment. The company has been in operation for over 40 years and is consistently building upon its products. By integrating modern technology with the demands of the modern workplace, Crowcon has developed a line of gas detection devices and monitors that lead the competition. The Xgard range of gas detectors is a product of Crowcon s successful integration and technological advancements. With a wide range of sensor types and available accessories, the Xgard series is suitable for all worksites and is customizable enough to fit any needs.

Tough and reliable

The Xgard series of fixed point gas detectors is incredibly durable and reliable. The casings and materials, including weatherproof caps, are designed to protect the equipment from the harshest environments. The detectors are made from a variety of materials depending on the model: glass reinforced nylon, aluminum with polyester coating, and 316 stainless steel.

Variety of sensors

The fixed point gas detector offers a wide range of sensors for to suite almost all applications. The Xgard range of gas detectors is available in three models to meet varying worksite needs: flameproof, intrinsically safe, and safe area formats. Additionally, Xgard offers different types of fixed point gas detectors within these three models:

• Xgard Type 1- Intrinsically safe toxic and oxygen gas detectors
• Xgard Type 2- Flameproof toxic and oxygen gas detectors
• Xgard Type 3- Flameproof flammable gas detector
• Xgard Type 4- Flameproof high temperature flammable gas detector
• Xgard Type 5- Flameproof flammable gas detector with 4-20mA output
• Xgard Type 6- Flameproof thermal conductivity type gas detector
• Xsafe- Safe area flammable gas detector

Cost efficient and highly effective

With quick and easy installation and maintenance, the Xgard series is able to keep costs at a minimum. The replacement sensors, for example, are simple to replace by merely plugging them in. The replacement parts are also readily available and compatible with all Xgard models, thereby reducing the amount of required spare parts that are stored in the facility. Additionally, the sensors have two times the typical life spans of similar sensors in the industry. With a 2 year life span, worksites can expect to cut their sensor replacement costs in half. For worksites that require slightly more customization, Crowcon offers compatible accessories for the Xgard series such as sampling applications, remote gassing applications, spray deflectors, sun shields, weatherproof caps, collector cones, flow adapter, and accessories adapter.

Xgard also has flexible installation options. The unit is designed for either wall or ceiling mounts, and users will not need to purchase additional equipment for mounting. For more complex installation needs, users can purchase accessories.

Specifications

Each model is approximately the same size with dimensions of 6.1 x 6.5 x 4.3 inches and weighing approximately 1 or 2 pounds. The battery type, electrical output, and power requirements vary based on the sensor type. For a complete listing of gas sensors, types, and individual specifications, please see the product specifications listing.

65-2400RK-05 S-Series LEL Sensor/Transmitter with Explosion Proof J-box, CSA Version by RKI Instruments

The RKI "S" Series gas sensor and transmitter is basic gas transmitter for the detection of common gas hazards. The transmitter is an efficient, reliable, and cost-effective safety solution to meet the needs of any industrial application. The transmitters were created specifically for highly volatile environments, and each transmitter is housed in an explosion proof casing. The device is ready for field use and can be adjusted and calibrated easily in the field. With an RKI "S" Series transmitter, users can be certain that they are receiving the very best in gas safety equipment.

RKI "S" Series Explosion Proof Gas Sensor and Transmitter Features

The transmitter is a reliable and durable solution for onsite hazards. True to its reputation, RKI Instruments designed this series with user friendly features to meet growing customer demands. This series features an explosion proof housing, patented water repellant sensor coating, long life sensors (2+ years of typical life), and an intrinsically safe rating. The unit operates independently of a controller and is available for LEL, H2S, CO, O2, and ppm HC monitoring. Infrared sensors are also available for LEL and CO2.

To protect the circuitry, the electronics are enclosed inside a potted package. This helps to reduce wear and tear due to corrosion and abuse. The amplifier is situated inside an aluminum explosion proof enclosure. Additionally, all sensors are explosion proof with flame arrestors. The flame arrestors use a patented water repellant coating. They are approved for use in hazardous atmospheres.

Industrial Applications

The series' basic design and user friendly nature is suitable for a variety of industrial applications, such as

• Petrochemical plants
• Refineries
• Gas plants
• Offshore drilling platforms
• Water and wastewater treatment plants
• Pulp and paper mills
• Gas, electric, and telephone utilities
• Parking garages
• Manufacturing facilities
• Steel industries
• Automotive plants
• Chemical storage buildings

Transmitter Specifications

The transmitters are functional both indoors and outdoors. Each condition provides a different operating range for temperature and humidity. Each transmitter operates on 11 to 30 VDC. Each transmitter also comes standard with a 1 year warranty for materials and workmanship.

RKI Instruments

RKI Instruments is a global leader in gas detection equipment manufacturing. For over 70 years, RKI has sold more than 800,000 portable and fixed gas monitors all over the world. The company strives to grow and develop with the changing technology. Their team of scientists and engineers are constantly researching and assessing the most advanced technology and working to improve their product offerings by successfully integrating this technology into modern safety equipment. At RKI, reliability and efficiency are key features of every new product.

*Please note we can only ship RKI products to customers within the United States

Xgard Gas Detectors

Crowcon is a global leader in designing and manufacturing gas detection technology and equipment. The company has been in operation for over 40 years and is consistently building upon its products. By integrating modern technology with the demands of the modern workplace, Crowcon has developed a line of gas detection devices and monitors that lead the competition. The Xgard range of gas detectors is a product of Crowcon s successful integration and technological advancements. With a wide range of sensor types and available accessories, the Xgard series is suitable for all worksites and is customizable enough to fit any needs.

Tough and reliable

The Xgard series of fixed point gas detectors is incredibly durable and reliable. The casings and materials, including weatherproof caps, are designed to protect the equipment from the harshest environments. The detectors are made from a variety of materials depending on the model: glass reinforced nylon, aluminum with polyester coating, and 316 stainless steel.

Variety of sensors

The fixed point gas detector offers a wide range of sensors for to suite almost all applications. The Xgard range of gas detectors is available in three models to meet varying worksite needs: flameproof, intrinsically safe, and safe area formats. Additionally, Xgard offers different types of fixed point gas detectors within these three models:

• Xgard Type 1- Intrinsically safe toxic and oxygen gas detectors
• Xgard Type 2- Flameproof toxic and oxygen gas detectors
• Xgard Type 3- Flameproof flammable gas detector
• Xgard Type 4- Flameproof high temperature flammable gas detector
• Xgard Type 5- Flameproof flammable gas detector with 4-20mA output
• Xgard Type 6- Flameproof thermal conductivity type gas detector
• Xsafe- Safe area flammable gas detector

Cost efficient and highly effective

With quick and easy installation and maintenance, the Xgard series is able to keep costs at a minimum. The replacement sensors, for example, are simple to replace by merely plugging them in. The replacement parts are also readily available and compatible with all Xgard models, thereby reducing the amount of required spare parts that are stored in the facility. Additionally, the sensors have two times the typical life spans of similar sensors in the industry. With a 2 year life span, worksites can expect to cut their sensor replacement costs in half. For worksites that require slightly more customization, Crowcon offers compatible accessories for the Xgard series such as sampling applications, remote gassing applications, spray deflectors, sun shields, weatherproof caps, collector cones, flow adapter, and accessories adapter.

Xgard also has flexible installation options. The unit is designed for either wall or ceiling mounts, and users will not need to purchase additional equipment for mounting. For more complex installation needs, users can purchase accessories.

Specifications

Each model is approximately the same size with dimensions of 6.1 x 6.5 x 4.3 inches and weighing approximately 1 or 2 pounds. The battery type, electrical output, and power requirements vary based on the sensor type. For a complete listing of gas sensors, types, and individual specifications, please see the product specifications listing.

65-2331RK S2 Series Hydrogen Sulfide (H2S) 0 - 100 ppm Sensor/Transmitter, Explosion Proof with J-Box, CSA Version by RKI Instruments

Having a reliable gas sensor is detrimental to the safety and security of workers in potentially unstable work environments. In many cases, the decision to use a gas detection device with a reliable sensor can be the difference between life and death. RKI Instruments understands the reliability of gas sensors should be a top priority for workplace safety managers. Their team of experts works diligently to incorporate the most advanced technologies with the highest industry standards.

For nearly 20 years, RKI Instruments has worked in the gas detection industry. Its line of products leads the industry in innovation and technology. Every year, the company commits to achieving a higher level of productivity and delivering the best gas detection products on the market. With the introduction of their high performing, low cost S2 Sensor Transmitter, RKI is fulfilling that commitment.

S2 Sensor/Transmitter

The RKI S2 Sensors and Transmitters use state of the art sensor technology to detect common gas hazards. Their efficient design and cost effectiveness make them an industry choice for atmospheric monitoring. The sensor transmitters can be used in both indoor and outdoor conditions and are designed to interface with RKI controllers or PLC/DCS systems.

The sensors are available in explosion proof casing for monitoring LEL, H2 specific, oxygen, H2S, CO2, and carbon monoxide. These sensors also have flame arrestors and are approved for use in hazardous environments. The oxygen, H2S, CO, and CO2 sensors are available in non-explosion proof models. The sensors provide highly specific and quick detection and are long lasting. The sensors can be quickly replaced while on the field and do not require any tools.

Explosion proof S2 Sensor/Transmitter

The explosion proof sensors use a variety of detection mechanisms including catalytic for LEL and LEL- H2 specific; metal oxide semiconductor for hydrogen; galvanic cell technology for oxygen; electrochemical for hydrogen sulfide and carbon monoxide; and infrared for carbon dioxide, methane, and hydrocarbons. A hydrogen specific sensor transmitter is not available. Each of these detection methods come with their own measuring range specifications and response times varying from 20 seconds to 45 seconds. These sensors are stainless steel and are housed in a cast aluminum explosion proof J-Box (a stainless steel J-Box is also available).

Non-explosion proof S2 Sensor/Transmitter

The non-explosion proof sensors use galvanic cells for oxygen detection; electrochemical technology for hydrogen sulfide, carbon monoxide, and other toxics; and infrared technology for carbon dioxide detection. The response times vary between 20 seconds and 60 seconds depending on the targeted gas, and the measuring ranges vary as well. These sensors are plastic or aluminum and housed in an explosion proof J-Box.

Accessories

The S2 Sensor/Transmitter has numerous accessories available to meet the individual workplace's needs. Such accessories include calibration adaptors, flow through adaptors, remote horns and lights, calibration kits, battery backups, splash guards, air aspirator adaptors or panels, and data loggers.

Each sensor comes standard with a one year warranty for materials and workmanship.

*Please note we can only ship RKI products to customers within the United States

00085D 86ASU Air Sampling Unit - for Cast Iron Junction Box Detector (TXgard/Flamgard-D, Flamgard4-20) by Crowcon

The Air Sampling Unit (ASU) is designed to be used with Crowcon s Xgard range of detectors for monitoring potentially hazardous gases within ventilation ducts.

Features:

• Enables air ducts to be monitored without requiring the detector to be mounted within the duct.
• Avoid sensor drift due to air-flow effects.
• Simple, easy to install design.
• Simple detector maintenance: there is no need to access the duct for calibration purposes.
• Extremely reliable; ASU has no moving parts.

123-Flam Gasflag Methane Pentane, Propane, Butane, Hydrogen, Lpg, Ethane, Acetylene, Gasoline by Crowcon

Gasflag is a control system for monitoring any 4-20mA flammable, toxic or oxygen gas detector. Gasflag is ideally suited to light industrial or commercial applications such as LPG monitoring on garage forecourts, chlorine detection in swimming pool dosing rooms, or methane detection in boiler rooms.

Gasflag features a loud sounder, bright LED indicators and relays for switching external devices such as audible visual alarms or valves.

Easy and safe to use - Bright alarm annunciator

• Loud internal audible alarm
• Clear sytem intergrity indication

Fully Flexible

• Accepts industry standard 4-20mA inputs
• Multiple units can be daisy chained
• Variable alarm configurations

No hidden costs

• Integral alarm outputs
• Simple installation
• Minimum maintenance
• One button operation

Note: The item requires three card slots (3HE x 21TE)

2121011 GMA 101-R Single Channel Rack Mounted Controller Card Includes Features 4-20mA Output, Relays by GfG

Stationary gas monitoring systems

In many industrial operations, toxic or combustible gases and vapors or oxygen deficiency can be hazardous to personnel and disruptive to production. Even small amounts of some materials can cause dangerous situations. Both legal regulations and your responsibility to your workers demand continuous, responsive, and reliable monitoring for such dangerous gases. Only a fixed gas warning system like the GMA 100 II provides the security of a round-the-clock gas monitoring without the expense of manual measurement by your staff.

Control module GMA 100 II

The GMA 100 II stationary gas warning system is comprised of a control module and a remote sensor (MWG). The sensor continuously monitors the gas concentration and sends a signal via cable to the GMA 100 II control module for evaluation. The GMA 100 II constantly monitors its own operational status and powers the remote sensor.

Immediate recognition and warning of gas hazards

The GMA 100 II provides three alarm levels that can be used to initiate appropriate responses to gas hazards. The pre-alarm, for example, warns of low gas concentrations, indicating leaks, before dangerous situations occur. The other two main alarm thresholds indicate direct danger requiring immediate action. Alarm levels can be variably adjusted within the detection range and adapted to changing requirements. Every threshold can be set to latching / non-latching and resettable / non-resettable alarm points.

Quick reaction means increased safety

Every control module provides optional voltage-free relays for the three alarms and for fault warning. The relays may be used for controlling external alarm devices like beacons or buzzers, or they can activate specific counter measures (closing valves or turning on a fan) to eliminate the danger from gases or vapors. The GMA 100 II is flexible enough to accommodate your individual requirements. Every relay can be either a normally closed (NC) or normally open (NO) contact, and works in either closed or open circuit operation.

Easy Handling

A keypad controls the display of detection range, gas and units. Relays can be controlled and checked individually. No special tools or instruments are required. Alarm levels and calibration are set with push button menu control mechanical fine tuning with potentio meters is a thing of the past.

Single or collective alarm

The GMA RB relay module and the GMA SW key-operated switch allow you to group several control modules. The key-operated switch suppresses alarms during servicing.

In addition to the collective alarm, each controller can have up to four relays which can activate or deactivate electrical devices such as exhaust fans, valves, alarm horns or lights.

Protected against power failure

In case of a power failure, the optional battery back-up NAV takes over automatically and without delay to preserve safety. The NAV slides directly into the rack; no additional wiring is required.

More than 100 GfG sensors safety for all gas hazards

GfG Instrumentation s array of powerful and dependable remote sensors (MWG) provide a safe and reliable solution for individual detection tasks.

Combustible gases

Where combustible gases may build up to explosive concentrations, GfG Instrumentation offers a variety of monitoring techniques.

Toxic gases

Specially selected GfG sensors provide reliable monitoring of areas where toxic gases and vapors may be present.

Oxygen

Electrochemical sensors ensure reliable protection from hazards caused by oxygen deficiency or surplus.

GfG s remote sensors are available for more than 100 gases. Every remote sensor can be connected to the GMA 100 II. A simple calibration with a laptop rapidly configures the GMA 100 II to almost all requirements.

Monitoring four detection points simultaneously: GMA 100 / 4

The model GMA 100 / 4 has all the features of the GMA 100 II, and can operate four remote sensors simultaneously on one control module. This allows the configuration of a lowcost and space-saving gas monitoring system for multiple detection points.

Features

• Flexible, customizable, and economical
• Microprocessor controlled for all monitoring tasks
• Easy to operate

Includes

• G300 Detector
• Specified sensor
• Alkaline batteries or rechargeable NiMH battery pack as specified
• Charger (with rechargeable battery pack only)
• Fixed gooseneck (with alkaline battery pack only)
• Manual

2210-001 25 Series Controller Panel with one Input Channel, 4-20 mA Output, Horn and Strobe by GfG

Simple and Effective

The 25 series control panel is available in a single channel (2210-001 and 2210-00110) or a one to four channel (2210-004 and 2210-00410) version. The panel comes complete with controller, local display horn and strobe. The single channel version also features a 4-20 mA output

Alarm Points

Each alarm can be adjusted separately. The alarm values can be freely adjusted within the detection range. Every alarm point value can be factory programmed to be latching/non-latching and resettable/non-resettable.

Alarm Relays

The controller provides four voltage-free relays for the three alarms and one fault warning. The relays may be used to control additional alarm devices like lights or horns.

Transmitters/Sensors

The 25 series control panel may be connected to any available GfG transmitter for detection of oxygen (O2), combustible gases (LEL) or any transmitter from a wide range of toxic gases.

Features

• Complete controller package available in single channel or 1-4 channel configurations
• Compact design
• Intuitive push button operation
• 4-20 mA input standard (factory configurable to 0.2-1 mA)
• 3 user-adjustable alarm hysteresis
• Rugged metal housing
• Easy installation
• 4 relays (3 alarm and 1 fault)
• Factory configured alarm functions include: Latching/non-latching, Resettable/non-resettable, Time delay, Rapid rise alarm for combustible setups
• Local display, horn and strobe
• 4-20 mA output (2210-001 and 2210-00110 only)

2211004 CI 21 Fixed Gas Transmitter with Internal 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

2211005 CI 21 Fixed Gas Transmitter with Internal Sensor, Ammonia (NH3), 1 to 1000 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

2211006 CI 21 Fixed Gas Transmitter with Internal Sensor, Ammonia (NH3), 0 to 10000 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