CC22 D Transmitter
Transmitter with display for monitoring flammable gases
If flammable gases and vapours are to be monitored outside Ex zones, the CC22 D transmitter is a reliable and economical solution.The CC22 D transmits measured values and status displays in analogue (0.2-1 mA or 4-20 mA) or digitally (RS-485). In addition, there is an on-site indication on the display and, in the event of an alarm, a local warning via buzzer. In combination with GfG's proven controllers, installation in new gas detection systems as well as retrofitting in existing systems is possible.
The CC22 D detects combustible gases and vapours such as methane, propane and hydrogen by means of catalytic combustion (CC; also heat tone or HT). The current measured value can be read at any time on the 2.2-inch display, which lights up red in the event of an alarm. The long-life sensors make the CC22 D 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.
Functional safety and device protection
The hardware of the CC22 D complies with the European Functional Safety Standard DIN EN 61508-2: 2011 (SIL). The housing is protected against the ingress of dust and water (protection class: IP54). An optional weatherproof housing provides additional protection.
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-285 interface (Modbus protocol). The transmitter indicates operating states via two status LEDs. Service and settings are carried out intuitively on site with a built-in push-button interface (one-man adjustment). The multi-coloured backlit display shows the current measured value, status messages and the menu of the CC22 D. Test gases can be applied for function control with a calibration adapter.
Key features at a glance:
- measuring principle: catalytic combustion (CC)
- for flammable gases and vapours
- expected sensor lifetime: 5 years
- 2.2-inch colour display, built-in push-button interface, buzzer
- signal transmission: 0.2-1 mA / 4-20 mA / RS-485
- protection class: IP54
Approvals / Certifications:
- SIL 2/3 (hardware)
- RC22 operating unit, weatherproof housing, calibration adapter
|C4H8O||Methyl ethyl ketone|
|C6H12O||Methyl isobutyl ketone (MIBK)|