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

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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)

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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

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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

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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

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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

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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

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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

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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

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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

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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

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EC 30 Series Fixed Gas Transmitter

For oxygen and a wide selection of toxic sensors
AutoCal^® automatic calibration
Linear 4 to 20 mA output signal
24 VDC
Alarm relays standard in EC 36
(low, high and fault)

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