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Spacelogic SCD range of CO2 transmitters with temperature sensing combines the option of adding a humidity transmitter into a single unit. Temperature sensing for all current platforms is available dependent on the model selected thus offering lower cost installation. Outputs are user selectable, 0 … 10 Vdc, 0 … 5 Vdc or 4 … 20 mA. The sensor is auto-calibrating using the Auto Baseline Calibration (ABC) feature and will sense CO2 concentrations in the range 0 … 2000 ppm with an accuracy of ±2% of measured value. The transmitter also include a relay that will switch at 800/1000 or 1200 ppm dependent on internal switch settings. Replacement humidity tips are available including a 2% NIST traceable tip.
Products specifications
| Attribute name | Attribute value |
|---|---|
| Main | |
| Probe length | 198 mm |
| Device application | duct |
| Depth | 61 mm |
| Colour | cloud white |
| Output type | resistive output, analog |
| Width | 170 mm |
| CO2 measurement accuracy | +/- 2 % of measured value, +/- 1.5 % of measurement range |
| Probe diameter | 25.4 mm |
| Humidity measurement accuracy | +/- 2 % |
| Measurement temperature | 0-50 °C |
| Relative humidity | 0-95 % RH, non-condensing |
| Sensor type | 1.8 kOhm thermistor temperature, NDIR (non-dispersive infrared) carbon dioxide (CO2) |
| Response time | less than 60 s for 90 % step change |
| Temperature measurement accuracy | +/- 0.3 °C |
| AWG gauge | AWG 24...AWG 14 |
| Range | SCD Series |
| CO2 measurement range | 0...2000 ppm |
| Location | plant room |
| Product or component type | sensor |
| Type of measurement | temperature, humidity, carbon dioxide (CO2) |
| Targeted region | Asia Pacific., Europe |
| Humidity measurement range | 0...100 % RH, non-condensing |
| Mounting support | duct |
| CO2 measurement repeatability | +/- 20 ppm +/- 1 % of measured value |
| Range of product | SCD |
| Analogue output type | 0...10 V DC, 0...5 V DC, 4...20 mA |
| Ambient air temperature for operation | 10-35 °C |
| Height | 78 mm |
| Humidity measurement resolution | 0.1 % RH |
| [Us] rated supply voltage | 20...30 V DC, 24 V AC |
| Product certifications | UL, CE |
| Sensor model | CDXTHTN |
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