Gas Transmitters

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CI 21 Fixed Gas Transmitter

Stable long-life charge-carrier-injection sensor
Sensor is unaffected by exposure to high gas concentrations
Low temperature operation to -40^oF
Low cross-sensitivity compared to MOS sensors
Low cost of ownership

CSA Approved

Details
ZD 21 Fixed Gas Transmitter

Extremely stable oxygen (O₂) sensor lasts 5 years
Fast response
No influences from pressure, humidity, or temperature
No damage from carbon dioxide (CO₂)

CSA Approved

Details
CC 22 Fixed Gas Transmitter

Uses the catalytic combustion principle
Long service life of the sensors
High efficiency and low follow-up costs
Sturdy plastic housing (IP-54)
Cost effective single-man adjustment
Affordable solution for many measuring tasks

Details
CS 22 Fixed Gas Transmitter

Uses the chemosorption principle
High efficiency and low follow-up costs
Sturdy plastic housing (IP-54)
Cost effective single-man adjustment

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EC 22 Fixed Gas Transmitter

Long service life of the sensors
High efficiency and low follow-up costs
Sturdy plastic housing (IP-54)
Cost effective single-man adjustment
Affordable solution for many measuring tasks

Details
IR 22 Fixed Gas Transmitter

Uses infrared sensor technology
Long service life of the infrared (NDIR) sensor
Cost effective single-man adjustment
Output 4-20mA or RS485 Modbus

CSA Approved

Details
ZD 22 Fixed Gas Transmitter

Long service life of sensors
Extremely fast response time
Reduced pressure, humidity, or temperature influence
No damage due to CO2
Cost effective single-man adjustment
Affordable operation costs

Details
IR 29
Gas Transmitter

First intrinsically safe IR transmitter for combustible gas measurement
ATEX II 1G Ex ia IIC T4 Ga C₀₁₅₈ Certified for Ex Zone 0 Hazardous Locations
Temperature, humidity and pressure compensation
Patented infrared (NDIR) 4-beam 4-wavelength technology
Energized IR sensor head can be replaced in Ex Zone 0 areas
Maintenance and service-friendly

Details
CC 28 Fixed Gas Transmitter

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

Details
EC 21 Fixed Gas Transmitter

Simple to use and extremely economical
Robust housing is corrosion resistant and dust-tight
Linear 4 to 20 mA output signal
10-30 V DC

Details
EC 28
Gas Transmitter

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

Details
CC 33 Fixed Gas Transmitter

One of the fastest response times in the world
Proprietary, high performance combustible gas sensor
Expected sensor life of 5 years
Operation/Service via magnetic rod
3 voltage free relay outputs (option)
Explosion proof horn (optional)
Non-intrusive Autocal® calibration
Available in two housings:
– Die-cast aluminum
– Stainless steel

Details