CC22 ex Transmitter

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For more than 60 years, GfG has been committed to protecting people, industrial facilities and the environment by developing and manufacturing gas detection systems. With an extensive range of portable gas detectors and fixed gas detection systems, GfG can supply you with a selection of products for many applications and industries. Our scope also includes on-site service and advanced training courses.


What distinguishes us from other manufacturers

We are specialists for gas detection solutions, not generalists in safety. No one can be the best at everything, but if you focus on one thing, you can achieve excellence. We work hard to provide you with the best gas detection equipment available, so you can focus on your task without having to worry about the risks that gases can pose. Because of that we invest more heavily in research and development than any other company. Approximately 13% of our annual turnover is reinvested in basic research and the development of new sensors and devices.


A “never say no” approach

This includes finding solutions for customers whose requirements are not met by “off the shelf” products. We take pride in our longstanding cooperation with the Singapore Civil Defence Force (SCDF), for example. For many years now, they have put their trust in GfG’s portable devices, which we optimized to adapt to the Singaporean climate and fulfill the special requirements for integration into the SCDF communication network.

The CC22 ex uses catalytic combustion (CC; also heat tone or HT) to detect flammable gases and vapours such as methane, propane and hydrogen. The long-life sensors make the CC22 ex an economical solution for detecting a wide range of combustible gases in the measuring ranges 0 to 100 % LEL and 0 to 4 % by volume (NH3). Automatic temperature compensation and linearisation of the measuring signals ensure high measuring accuracy.

Explosion and device protection
The CC22 ex is ATEX certified for use in Ex zone 2. The housing is protected against the ingress of dust and water (protection class: IP65).

Communication and service
Signals are transmitted according to the analogue industrial standard (optionally 0.2-1 mA or 4-20 mA) or via the digital RS-485 interface (Modbus protocol). The transmitter indicates operating states via a status LED. Service and adjustments are carried out on site using a smartphone app or magnetic pen (one-man adjustment). Test gases can be added for function control with a calibration adapter. If the CC22 ex has been installed near the ceiling, a specially developed remote calibration adapter allows the test gas to be applied without affecting the sensor’s stack effect.


Key features at a glance:

General information:

  • Measuring principle: catalytic combustion (CC)
  • For flammable gases and vapors
  • Expected sensor lifetime: 5 years
  • Signal transmission: RS-485 (Modbus)
  • Protection class: IP65

Approvals / Certifications:

  • ATEX certification: II 3G Ex nA db IIC T4 Gc

Optionally available:

  • Calibration adapter, remote calibration adapter

Would you like to know more?

Our team can help you with any product information, quotes, or any general questions you may have about the product.

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CC22 ex Transmitter

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