IR22 F Transmitter

The IR22 F uses an infrared sensor (IR) to detect carbon dioxide even under the harshest conditions. The long-life sensor makes the IR22 F an economical solution for detecting CO₂ in the measuring range of 0 to 5 vol %. Its automatic temperature compensation and the linearization of the measuring signals ensure high measuring accuracy.

Device protection
The housing is protected against the ingress of dust and water (protection class: IP65) and is suitable for applications with ambient temperatures of up to -40 °C - as they are found in cold rooms, for example. An optional weatherproof housing provides additional protection.

Communication and service
Signals are transmitted via the analog industry standard (4-20 mA; ACDC-capable) or the digital RS-485 interface (Modbus protocol). External alarm devices can be connected directly to the IR22 F via two open collectors. A button for alarm acknowledgement and manual activation of an alarm can be connected to the digital input. The IR22 F uses a status LED to indicate its operating status. A mobile app facilitates service and adjustments on site (one-person adjustment). Test gas for function tests can be inserted with a calibration adapter.

Key features at a glance:

General information:

• Measuring principle: Infrared (IR)
• For carbon dioxide
• Temperature range: -40 °C to +60 °C
• Can be connected directly to external alarms
• Expected sensor lifetime: > 5 years
• Signal transmission: 4-20 mA (ACDC-capable) / RS-485
• Protection class: IP65
• Service via app

Optionally available:

• Weatherproof housing, calibration adapter