CC22 D Transmitter

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-485 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:

General information:

• 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)

Optionally available:

• RC22 operating unit, weatherproof housing, calibration adapter