Documents: CWE2M
CWE2M | Sensor, CO2, Economy, Wall,Temp,20K | Veris
Sensor, CO2, Economy, Wall,Temp,20K
Overview Details for CWE2M
The CWE2 Series of air quality sensors for living space are for use with BAS controllers designed to accept 4 to 20mA, 0 to 5 Vdc or 0 to 10 Vdc outputs. These sensors measure CO2 levels using a dual-beam, non-dispersive infrared (NDIR) technology. The CWE2M measures temperature as well. The CWE2 Series Economy sensor has an accuracy of ±30 ppm ±3% of measured value, features 2-wire 4 to 20mA and 3-wire voltage outputs.
- NDIR CO2 sensor
- 20K Ohm NTC Thermistor Temperature Sensor
- Lower Installation costs: 2 wire current outputs
- Competitively priced sensors
- Easy installation: large wiring terminals on baseplate screw simplify installation and service
- Flexibility: field selectable outputs
- Easy to maintain: self calibrating
The CWE2 Series of air quality sensors for living space are for use with BAS controllers designed to accept 4 to 20mA, 0 to 5 Vdc or 0 to 10 Vdc outputs. These sensors measure CO2 levels using a dual-beam, non-dispersive infrared (NDIR) technology. The CWE2 Series Economy sensor has an accuracy of ±30 ppm ±3% of measured value, features 2-wire 4 to 20mA and 3-wire voltage outputs, and is available with optional temperature output.
Specifications
| Item Number | CWE2M |
| Brand | Veris |
| CO2 Measurement Accuracy | ±30 ppm ±3% of measured value |
| CO2 Measurement Range | 0 to 2000ppm |
| CO2 Measurement Repeatability | ±20 ppm ±1% of measured value |
| CO2 Measurement Resolution | 1 ppm |
| CO2 Response Time | =75 seconds for 90 degree step change |
| CO2 Sensor Type | Dual beam non-dispersive infrared (NDIR); diffusion sampling |
| Color | Matte White |
| Electrical Wiring Size | Screw terminals; 18-24 AWG |
| Enclosure Material | High impact ABS plastic |
| Humidity Measurement Accuracy | ±2% from 10 to 80% RH @ 25°C (77 °F) |
| Input Specifications | Class 2; 20 to 30 Vdc; 24 Vac; 50 to 60 Hz |
| IP Protection | IP20 |
| Measurement Type | CO2 / Temperature |
| Measurement Type | CO2; Temp |
| Operating Current | 20mA |
| Operating Humidity | 0 to 95% RH non-condensing |
| Operating Temperature | 0 to 50 °C (32 to 122 °F) |
| Output Specifications | Selectable 4 to 20 mA (2-wire); 0 to 5 V (3-wire); 0 to 10 V (3-wire) |
| Outputs | Analog |
| Standards EMC | EN61000 Series - industrial immunity |
| Standards | CE; UL 916; RCM; ICES-003. REACH; RoHS |
| Temperature Measurement Range | 0 to 50 °C (32 to 122 °F) |
| Temperature Measurement Resolution | 0.1 °C (0.1 °F) |
| Temperature Sensor Type | 20K Ohm NTC Thermistor |
| Warranty | 3 Years |

