EC28 B Transmitter

With Modbus Suitable for Use in Ex Zones


Whenever toxic gases, oxygen or hydrogen need to be monitored and you want current measured values to be transmitted digitally, the EC28 B transmitter combined with one of GfG‘s reliable controllers is an excellent and economical solution. The ATEX-certified transmitter can be used even in potentially explosive atmospheres.

Functional safety
The EC28 hardware complies with the European Functional Safety Standard DIN EN 61508-2: 2011 for many gases. The SI levels (up to SIL3) in single channel (1oo1) or redundant (1oo2) use depend on the gas type and the sensor.

Communication and service
The EC28 B's communication works via RS-485 industry standard with Modbus protocol. The Smart Sensor technology allows for quick and easy sensor replacement. Adjustments can be made using the RC2 remote control (one-person calibration).

RC2 remote control (optional)
Gases like ammonia and hydrogen are lighter than air. Transmitters with these sensors are therefore installed near the ceiling. To simplify servicing them, these transmitters can be equipped with a permanently installed cable for connecting an RC2 remote control for maintenance work. This way, adjustments can be made from ground level. The information displayed on the the RC2 remote control's screen is identical to the one shown by the EC28 with display. This makes inspection, maintenance and calibration much easier.

Reliable measurement & minimal operating costs
The sensor and built-in temperature compensation guarantee the highest measuring accuracy. The long sensor service life and low maintenance requirements ensure minimal operating costs.

Detectable gases

AsH3 Arsine
B2H6 Diborane
Br2 Bromine gas
C2H4O Ethylene oxide
Cl2 Chlorine
ClO2 Chlorine dioxide
CO Carbon monoxide
COCl2 Phosgene
H2 Hydrogen
H2S Hydrogen sulfide
HCl Hydrogen chloride
HCN Hydrogen cyanide
HF Hydrogen fluoride
NH3 Ammonia
NO Nitrogen monoxide
NO2 Nitrogen dioxide
O2 Oxygen
O3 Ozon
PH3 Phosphine
SiH4 Silane
SO2 Sulfur dioxide
Other gases on request.

Downloads

Extensions and accessories

Test gases


You can find an overview of our test gases here
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Accessories EC28 B


Here you'll find the complete list of accessories for the EC28 B
» download PDF

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