Aereco TF5701_B CO2 Ambient Air Sensor Installation and Operating Instructions
This module measures carbon dioxide (CO2) in the range of 0 to 2000 ppm and is equipped with a low consumption sensor. The sensing element uses NDIR Infra Red technology (no cross sensitivity to any other gas than CO2) and is self-calibrated. A dual beam measurement enables the module to be used in any kind of room occupancy (no CO2 back to bottom level needed). Output signal: Analog (0-10V).
Applications
- HVAC: Demand Controlled Ventilation, fan control, damper control, air conditioning control, CO2 level indicator, etc.
- BMS: CO2 level indicator, Indoor air quality monitoring, etc.
Maintenance
Check frequently that the product is clean and remove dust if needed. No calibration required. Caution: Never touch the sensing element (white pastille on the sensor) otherwise the detection may be damaged.
Warranty
The product is guaranteed for two years. Its validity is submitted to conformed installation, use, and maintenance.
This product is manufactured by Aereco S.A. in France. The sensor is manufactured in Germany.
Manufacturer Address:
Aereco S.A.
62 rue de Lamirault
Collégien
77 MARNE LA VALLEE CEDEX 3
FRANCE
www.aereco.com
Installation Recommendations
Sensors must be installed on the wall, at a height of at least 1.5 meters from the floor, or at the ceiling, and must respect the following recommendations:
- Keep the sensor away from any direct solar radiation.
- Keep the sensor away from draughts (door, window, supply, etc.).
- Avoid placing the sensor in dead zones (behind curtains, furniture).
- Keep the sensor away from heat sources and from occupants.
- If the sensor is located at the ceiling, keep it away from any air supply unit.
Installation Steps
- Remove the front cover (A).
- Unclip the electronic card (B) and the plastic protection (D) from the base (C).
- Fix the base (C) using 2 screws (not supplied). The screws and plug must be chosen according to the type of the support.
- Connections: Use PVC wires with a minimum cross-section of 0.25 mm² for all wires. On the electronic card (B), connect the wires as follows:
| Connectors > | V+ | S1 | S2 | S3 | S4 | GND |
|---|---|---|---|---|---|---|
| Supply (2 wires) | 12 VDC | 0 V |
Output 0-10V: 0 V = 0 ppm; 10 V = 2000 ppm
- Clip the electronic card inside the base (C).
- Put the cover (A) on the base (C).
- Connect the wires to the external devices (12 VDC supply and device driven by 0-10 V output).
- Only once all the connections have been made, plug in the supply of the system.
CAUTION!
Never connect the 12 VDC supply to S1 or S2 and the 0 V supply to GND, otherwise S1 and S2 output will be damaged. A protection is implemented to protect the product in case of wrong connection, when the following mistakes occur:
- Inversion of the supply wires (GND and V+).
- 12 V supply connected to S3 and S4 and 0 V supply on GND.
Technical Data
| Measurement principle | Non-Dispersive Infrared Technology (NDIR), dual Source Infrared System |
| Working range | 0...2000 ppm CO2 |
| Accuracy at 25°C and 1013 mbar | ±(50 ppm + 2% of measuring value) |
| Response time | < 195 s |
| Temperature dependence | typ. 2 ppm CO2/°C (0...50°C) |
| Long term stability | typ. 20 ppm / year |
| Measuring time interval | 60 s |
| Supply voltage | 12 VDC ± 10% |
| Average power consumption | 120 mA (reading), 10 mA (nominal) |
| Peak current max. | 1 A (use for fuse sizing) |
| Working and storage conditions | -40...60°C, 5...95% RH (not condensating), 85...110 kPa |
Output 0-10 V
| Output data | 0 to 10 V. 0 V = 0 ppm; 10 V = 2000 ppm |
| Voltage (S3 and S4) | 0 to 10 V |
| Current (S3 and S4) | 400 mA |