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Key Features
- 24V AC/DC Power Supply
- Pluggable terminal block for ease of installation
- Optional traffic light readout
- 3x 0-10V outputs
- Selectable Temperature output (0-10V or 10K3)
- Volt free contact output
- Typical 10+ year life expectancy
- Self-calibrating CO2 sensor
- Mounts onto any standard single gang junction box or conduit box
- UK MANUFACTURED
Technical Specification
| Power Supply | 24V AC/DC ±10% |
| Power Consumption | 50mA Max |
| Analogue Outputs | 3x 0-10V |
| Thermistor Output | 10K3A1 |
| VFC Output | SPST - 100mA @ 24V Max |
| CO2 Range | 0 - 2,000ppm |
| CO2 Accuracy | ±40ppm +3% @NTP |
| CO2 Display Resolution | 1ppm |
| CO2 Sensing Method | Non Dispersive Infra-red (NDIR) |
| CO2 Typical Sensor Life | 10+ years |
| Temp Range (0-10V) | 0 - 50°C |
| Temp Accuracy | ±0.3°C @ 25°C |
| Temp Display Resolution | 0.1°C |
| RH Range | 0 - 100% |
| RH Accuracy | +/-2% @ 20 - 80% |
| RH Display Resolution | 0.1% |
| Operating Conditions | Temp 0°C to 50°C |
| Humidity 0 to 95% (NC) | |
| Sampling Method | Diffusion |
| Warm-up Time | 30 seconds |
| IP Rating | IP40 |
| Housing Material | Flame Retardant ABS |
| Colour | Pure White (RAL9010) |
| Approval | CE |
Dimensions
| Height | 152 mm |
| Width | 110 mm |
| Depth | 50 mm |
| Probe Length | 200 mm |
Installer Selectable Options
- 0-10V or Thermistor Temp output (only one used at any time)
- Traffic light and relay set points (see below)
The unit has two user selectable programmes to control the traffic light and volt free contact set points depending on the application.
These are as follows:
| Program | Ventilation | Gas Safety |
|---|---|---|
| Green - Yellow | 1,000ppm | 1,500ppm |
| Yellow - Red | 1,500ppm | 2,800ppm |
| Relay Position | Normally Open | Normally Closed |
| Relay Set Point | 1,000ppm | 4,500ppm |
Part Numbers & Options / Accessories
| Part No | Description |
|---|---|
| TR-CO2T | Transmitter - CO2 & Temp |
| TR-CO2TH | Transmitter - CO2, Temp & RH |
| TR-TH | Transmitter - Temp & RH |
| TR-T | Transmitter - Temp |
| TR-CO2TL | Transmitter - CO2 & Temp c/w LCD |
| TR-CO2THL | Transmitter - CO2, Temp & RH c/w LCD |
| TR-THL | Transmitter - Temp & RH c/w LCD |
| TR-TL | Transmitter - Temp c/w LCD |
