GfG Instrumentation 2211005 CI21 Series Fixed Ammonia Transmitter, 0 (30) - 1000 ppm Range

The CI21 measures ammonia in small and large measuring ranges from few ppm to 1000 ppm. The sensor has almost no cross-sensitivities to gases that would trigger false alarms. This also applies to vapors from oils and cleaning agents, which are often found in applications where ammonia must be monitored. Hydrogen, which is produced during battery charging, does not affect the measurement signal either.

Resistant to external influences

The transmitter housing is made of aluminum. It is protected against the ingress of dust and splash water (IP54). The sensor can also be mounted remotely if the situation requires it. The cables used to connect it can be up to two meters long. The sensor is not susceptible to difficult environmental conditions. The CI21 can be used in temperature ranges between -35 and +55 °C, in dry and humid air (1 to 99 % RH).

Communication and service

The transmitter uses the analog industry standard (either 0.2-1 mA or 4-20 mA) signal to communicate the measured values to a controller for evaluation. Test gases for function tests can be inserted via an optional calibration adapter. On-site adjustment can be performed by a single person.

Features:

• Measuring principle: Charge Carrier Injection (CI)
• For ammonia
• Expected sensor lifetime: 2 years
• Signal transmission: 0.2-1 mA or 4-20 mA
• Protection class: IP54

For more information, please see Data Sheet and Manual