• Available with LCD to provide sensor readings and status information

• NDIR technology to measure carbon dioxide gas

• Gold-plated sensor for long-term calibration stability

• Analog and relay outputs based on CO2 levels

• Automatic Background Calibration (ABC) algorithm based on long-term evaluation to reduce required maintenance

Supply Voltage:24 VAC ±20%, 50/60 Hz (Class 2)

Supply Watts:3W max power consumption

Supply Current:600 mA peak current (at 20 ms)

Signal Output:0-10, 2-10 VDC, 0-20, 4-20 mA, (jumper selectable)

Maximum Output :

Impedance: <500Ω

Minimum Output :

Impedance: >5000Ω

Alarm Relay Output:Shipped N.O., close at 800 ppm (selectable) Contact rating: 1A @ 50 VAC/24 VDC Minimum load: 1mA @ 5 VDC

Accuracy: Annual drift 20 ppm (nominal)

Pressure: 1.4% change in reading per 0.15 psig (1.0 kPa) deviation from 14.5 psig (1000 kPa)

Measurement Range:0-2000 ppm ±5% and ±50 ppm

Calibration Interval:Five years

Response Time:2 minutes

Operating Humidity:0% to 95% RH noncondensing

Operating Temperature:32° to 122°F (0° to 50°C)

Storage Temperature:-4° to 158°F (-20° to 70°C)

Enclosure Rating:

C7232A:NEMA 1

C7232B:NEMA 3 Flammability rating UL95-5V

Wiring Terminations:

C7232A:20 AWG, 8" cable

C7232B:20 AWG, 6" cable

Approvals: UL listed, File # E4436 C7232B, CE

Weight: 1.6 lb (0.72 kg)

Warranty: 1 year