Veris CWE2 Series Installation Manual

Installation Guide
Air Quality
CWE2
NOTICE
• This product is not intended for life or safety applications.
• Do not install this product in hazardous or classi ed locations.
• Read and understand the instructions before installing this product.
• Turn o all power supplying equipment before working on it.
• The installer is responsible for conformance to all applicable codes.
If this product is used in a manner not speci ed by the manufacturer, the protection
provided by the product may be impaired. No responsibility is assumed by the
manufacturer for any consequences arising out of the use of this material.
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Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris 'V' logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
Economy Wall Mounted Air Quality Sensors
Product Overview
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.
Product Identification
User Interface
CWE2
Blank = None
C = 1000 PT RTD
D = 10K T2 thermistor
H = 10K T3 thermistor
K = 10K curve G/11K shunt
M = 20K NTC thermistor
N = 1.8K TAC thermistor
Specifications
Input Power Class 2; 20 to 30 Vdc, 24 Vac, 50 to 60 Hz
Max. Current 20 mA
Analog Output Selectable 4 to 20 mA, 0 to 5 V, 0 to 10 V
Operating Temp. Range 0 to 50 °C (32 to 122 °F)
Operating Humidity Range 0 to 95% RH non-condensing
Housing Material High-impact ABS plastic
Terminal Block Torque 0.5 to 0.6 N-m (0.37 to 0.44 in-lbf)
Sensor Type Dual-beam, non-dispersive infrared (NDIR), diffusion sampling
Output Range 0 to 2000 ppm
Repeatability ±20 ppm ±1% of measured value
Startup Time ≤20 seconds
Response Time ≤ 75 seconds for 90 degree step change
Max. Load Resistance* 100 Ω at 20 Vdc
Terminal Blocks Screw terminals, 18-24 AWG
Screw Terminal Torque 0.2 N-m (2.0 in-lbF) max.
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
CWE2 Series
OPERATING ENVIRONMENT
CO2 TRANSMITTER
Accuracy ±30 ppm ±3% of measured value
250 Ω at 24 Vdc
500 Ω at 30 Vdc
WIRING TERMINALS
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