Autocomp a/c02-r2 Room CO2 Sensor 0 to 2000 Ppm

Product Description

The AUTOCOMP a/c02-r2 is a wall-mount room CO2 sensor designed for continuous carbon dioxide monitoring in occupied spaces. It measures CO2 concentration from 0 to 2,000 ppm and transmits the reading via three selectable output signals: 0 to 5 Vdc, 0 to 10 Vdc, or 4 to 20 mA. Supply voltage accepts 24 Vac or 16.5 to 40 Vdc, making it compatible with standard building automation and HVAC control panels. The white plastic enclosure is sized for typical room-side wall installation. HVAC controls technicians and building automation specialists are the primary installers.

This sensor is suited for demand-controlled ventilation (DCV) applications in commercial and light-commercial buildings where CO2 levels are used to modulate outdoor air. Classrooms, offices, conference rooms, and other densely occupied spaces are typical deployment environments. The multi-output format allows integration with a wide range of building automation system (BAS) controllers and DDC panels. The sensor also includes an onboard temperature sensing element with support for multiple thermistor types including 10K-E, 10K-E1, 20K, 3K, AN, and CP configurations, providing dual-parameter monitoring from a single device.

Key Features

• CO2 measurement range of 0 to 2,000 ppm for standard occupied-space monitoring
• Three analog output options: 0 to 5 Vdc, 0 to 10 Vdc, and 4 to 20 mA for broad BAS compatibility
• Accepts 24 Vac or 16.5 to 40 Vdc supply voltage
• Integrated temperature sensor supporting six thermistor types: 10K-E, 10K-E1, 20K, 3K, AN, and CP
• White plastic enclosure suited for finished-space wall mounting

Compatibility

Part of the A/CO2 series by AUTOCOMP. Designed for integration with building automation systems and DDC controllers that accept 0 to 5 Vdc, 0 to 10 Vdc, or 4 to 20 mA analog inputs. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed HVAC controls technician or qualified building automation specialist. De-energize the control panel and confirm zero voltage at the sensor terminals before wiring. Follow local codes and the controller manufacturer wiring guidelines when selecting and connecting the analog output signal type. Mount the sensor on an interior wall away from supply air diffusers, direct sunlight, and other sources that could cause localized CO2 readings that are not representative of room conditions.

Technical Specifications

• Gas Type: Carbon Dioxide
• Measurement Range: 0 to 2,000 ppm
• Output Signals: 0 to 5 Vdc, 0 to 10 Vdc, 4 to 20 mA
• Supply Voltage: 24 Vac or 16.5 to 40 Vdc
• Temperature Sensor Types: 10K-E (10,000 Ohm), 10K-E1 (10,000 Ohm), 20K (20,000 Ohm), 3K (3,000 Ohm), AN (10,000 Ohm Type III), CP (10,000 Ohm Type II)
• Enclosure Material: White Plastic
• Series: A/CO2

Standard Information

• Brand: AUTOCOMP
• Manufacturer Part Number: a/c02-r2