EC28 DAB Transmitter

With Display, Alarm and Bus for Use in Ex Zones

Whenever toxic gases, oxygen or hydrogen need to be monitored, current measured values are to be displayed locally and transmitted digitally, and an alarm needs to be issued on site, the EC28 DAB transmitter combined with GfG‘s proven control units is the solution of choice. The ATEXcertified design means it can be used even in potentially explosive atmospheres.

Functional Safety
The hardware of the EC28 DAB complies with the European Functional Safety Standard DIN EN 61508-2: 2011 for many gases. The SI levels (up to SIL3) in singlechannel (1oo1) or redundant (1oo2) use are listed in the overview of gases.

Communication and Service
Communication is carried out via RS-485 industry standard with Modbus protocol. The Smart Sensor technology enables the quick and easy replacement of the sensor. Adjustments can be made using the RC2 remote control (one-man calibration).

Display, Control Buttons and Alarms
The EC28 DAB transmitter features a 2.2 inch LC display and three control buttons. In normal operation, the display shows the measured value or information on faults or alarms. In addition, the operating parameters (sample gas, measuring range, limit values, etc.) can be called up via the operating
keys. The EC28 DAB has highly visible, red alarm LEDs and a loud, integrated horn (90 dB). Costs for additional, ex-protected alarm devices can therefore be eliminated.

Reliable Measurement & Minimal Operating Costs
The sensor and built-in temperature compensation ensure 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 sulphide
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 Sulphur dioxide
Other gases on request.


Extensions and accessories

Test gases

Test gases

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

Accessories EC28 DAB

Here you'll find the complete list of accessories for the EC28 DAB
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