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Toxics Gases

Transmitter EC28

The smart transmitter

Whereven hazards are to be expected, the transmitter EC28 and GfG's proven monitoring systems are the right choice for reliable surveillance. The ATEXcertified design, an integrated, Ex-proof buzzer and bright alarm LEDs provide highest safety including visual and audible alarm even in hazardous areas. Thus the gas alarm does not only alert the man in the control room but also the person at site.

  • Reading of gas concentration at transmitter display
  • Ex-proof visual and audible alarm
  • ATEX certificate II 1 G EEx ia IIC T4 / II 2 G EEx em [ib] IIC T4
  • One-man calibration at transmitter by means of touch keys or remote control
  • Plug-in Smart Sensor - Sensor replacement without opening of casing





CI 21 Transmitter

Low Maintenance Ammonia Detection

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





Transmitter IR 24

Stationary monitoring of carbon dioxide (CO2)

The IR 24 does not contain any moving parts, which may be subject to wear and tear. This ensures a long lifetime and low maintenance cost. Additional safety is provided by the permanent self-check and function test of the GMA controller. Sensor and electronics are protected in a solid enclosure from dust and water according to IP 54. This ensures that water cannot enter the detector, even in wet environments.

Behind a service lid on the front of the IR 24 you find potentiometers and test connectors for easy adjustment of zero point and span. This allows one-man calibration on-site and reduces service down-time.

  • Selective NDIR detection principle
  • Long sensor life for low follow-up cost
  • Easy handling
  • Signal output either 0.2 .. 1 mA or 4 .. 20mA
  • Potentiometers for easy adjustment of zero point and span
  • Connectors for test of output signal
  • Solid aluminium casing, IP 54
  • High reliability and repeatability of measurement results





CS 21 Transmitter

Low Cost Solid State Sensor

The CS 21 transmitter uses the proven chemosorption detection principle for detection of toxic gases, vapors and combustibles. The rapid response of the transmitter provides opportunity to take counter measures and thereby limit damages. The long life of the sensors makes the CS 21 a low-cost solution for your detection needs. A transmitter can be continuously operated for more than 5 years

  • High sensitivity to a broad range of refrigerants
  • Long sensor life
  • Fast response





EC 36 Transmitter

SAM Smart Area Monitor EC 36 - Stand alone

The EC 36 is a stand-alone transmitter. In every EC 36 there is a sensor, control electronic and relays for triggering of alarms. LEDs in the front panel immediately indicate the alarm. The signal output is provided as a 4..20 mA signal.

The EC 36 is the most enhanced single point gas detector available offering features never known to the industry. Equipped with AutoCal, the EC 36 can be comfortably calibrated in a matter of seconds. A 17 mm high backlight LCD-display indicates the gas concentration, status report and, if operated in service mode, all settings. In applications where the display of the EC 36 cannot be read because of its mounting position, a remote display is easily connected to an interface. Using the remote control, nonintrusive remote calibration can be performed, making forklifts or ladders a thing of the past.

  • Integrated alarm control
  • 3 alarm relays
  • AutoCal for easy and fast calibration
  • Illuminated 4-digit LCD display for easy reading
  • Extremely rugged casing
  • Remote control and remote display - even for Exendangered areas
  • Smart Sensor Technology





Transmitter EC24

for toxic gases, oxygen and hydrogen

The EC24 is a robust gas transmitter for the detection of toxic gases, oxygen and hydrogen in ambient air. The electrochemical sensor measures very selectively and prevents expensive fault alarms. The amplifying electronics of the transmitter provide a very exact transfer of the measuring signal to the controller. Potentiometers and connectors behind the service lid allow a calibration at site. The casing protection is available up to IP68. That watertight design provides the EC24 with a protection against dirt, and splash water.

  • Long life sensors - reduced cost of ownership
  • High selectivity
  • 0.2 .. 1mA or 4 .. 20mA signal output
  • Service lid for:
    • measuring the output signal
    • simple one-man at site calibration
  • Robust aluminium casing, IP52 (IP66 enclosure)
  • Plug-in sensor in stainless steel casing, interchangeable without opening the detector





Transmitter EC28 D

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 D and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides the highest safety even in hazardous areas. LED indicate operation (green) or fault (red).

The transmitter EC28 D reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Adjustments and function tests are done directly with three touch keys under the transmitter display

  • Gas concentration reading at transmitter display
  • ATEX certified II 2 G Ex emb [ib] IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing





Transmitter EC28 DA

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 DA and GfG’s proven controller systems are the right choice for reliable surveillance. The ATEX-certified design provides the highest safety even in hazardous areas. LED indicate operation (green) or fault (red).

The transmitter EC28 DA reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Adjustments and function tests are done directly with three touch keys under the transmitter display. Integrated buzzer and bright alarm LED make this transmitter a complete gas warning system. This avoids the cost for an Ex-proof buzzer and flashlight, and saves money for the wiring between controller and alarm. The gas alarm does not only alert the control room but also the person at site.

  • Gas concentration reading at transmitter display
  • Ex-proof visual and audible alarm
  • ATEX certified II 1 G Ex ia IIC T4 / II 2 G Ex emb [ib] IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing





Transmitter EC28 DAB

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 DAB and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides highest safety even in hazardous areas. LED indicate operation (green) or fault (red).

The transmitter EC28DAB provides a modbus-interface for communication of several transmitters in a loop. It reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Adjustments and function tests are done directly with three touch keys under the transmitter display. Integrated buzzer and bright alarm LED make this transmitter a complete gas warning system. This avoids the cost for an Ex-proof buzzer and flashlight, and saves money for the wiring between controller and transmitter. The gas alarm does not only alert the control room but also the person at site

  • Gas concentration reading at transmitter display
  • Ex-proof visual and audible alarm
  • ATEX certified `II 2 G Ex emb [ib] IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing
  • Modbus-interface





Transmitter EC28 DAR

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 DAR and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides the highest safety even in hazardous areas. LEDs indicate operation (green) or fault (red).

The transmitter EC28 DAR reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Adjustments and function tests are done directly with three touch keys under the transmitter display. Integrated buzzer and bright alarm LED make this transmitter a complete gas warning system. This avoids the cost for an Ex-proof buzzer and flashlight, and saves money for the wiring between controller and alarm. With an additional relay further alarm devices can be connected, e.g. to monitor differerent Ex-areas. The gas alarm does not only alert the control room but also the person at site.

  • Gas concentration reading at transmitter display
  • Ex-proof visual and audible alarm
  • With relay for additional external alarms
  • ATEX certified `II 2 G Ex emb [ib] IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing





Transmitter EC28 Di

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 Di and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides the highest safety even in hazardous areas. LED indicate operation (green) or fault (red).

The transmitter EC28 Di reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Calibration and function tests are done directly with three touch keys under the transmitter display. It complies with the highest safety requirements with certified intrinsic safety

  • Gas concentration reading at transmitter display
  • ATEX certified II 1 G Ex ia IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing
  • Intrinsically safe





Transmitter EC28 i

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 i and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides the highest safety even in hazardous areas. LEDs indicate operation (green) or fault (red).

The transmitter EC28 i is certified intrinsically save to give the highest possible level of safety.

  • Transmitter EC28 ifor toxic gases, oxygen and hydrogen
  • ATEX certified II 1 G Ex ia IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing
  • Intrinsically safe





Transmitter EC28 DB

for toxic gases, oxygen and hydrogen

Wherever gas hazards are to be expected, the transmitter EC28 DB and GfG’s proven control systems are the right choice for reliable surveillance. The ATEX-certified design provides highest safety even in hazardous areas. LED indicate operation (green) or fault (red).

The transmitter EC28DB provides a modbus-interface for the communication of several transmitters in a loop. It reads the current gas concentration at site on the display with a four-digit LCD for measurement values, messages and service. Calibrations and function tests are done directly with three touch keys under the transmitter display.

  • Transmitter EC28 DBfor toxic gases, oxygen and hydrogen
  • Gas concentration reading at transmitter display
  • ATEX certified `II 2 G Ex emb [ib] IIC T4
  • One-man calibration at transmitter via touch keys or remote control
  • Plug-in Smart Sensor
  • Sensor replacement without opening housing
  • Modbus-interface





Transmitter EC22

for toxic gases, oxygen and hydrogen

The EC22 is equipped with high quality GfG sensors. The transmitters are fitted with high-performance electronics for voltage stabilization, processing of readings, and temperature compensation. Follow-up costs are minimized thanks to the long lifespan of the sensors.

  • Long service life of the sensors
  • High efficiency and low follow-up costs
  • Sturdy plastic housing (IP54)
  • Cost-effective single-man adjustment
  • Affordable solution for many measuring tasks





Transmitter EC22ex

for toxic gases, oxygen and hydrogen

The CC22ex uses the Catalytic Combustion (CC) measurement principle, a proven measurement method for monitoring combustible gases. It is intended for use in Zone 2 hazardous areas. Voltage stabilisation, processing of the measured value output and temperature compensation are all handled by the smart electronics. The long service life of the sensors reduces operating costs.










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