Product Overview

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+1 503.598.4564
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[e-mail]
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www.veris.com
The CW2 Series of air quality sensors for living space is a exible
multi-sensor platform for use with BAS controllers designed to
accept 4 to 20mA, 0 to 5Vdc or 0 to 10Vdc outputs. CW2 Series
sensors are available with three user interface options: touchscreen,
LCD with three buttons and blank. CO
2
and temperature sensors
are included with all CW2 Series air quality sensors. Models with
VOC sensors and relative humidity sensors are also available.
OPERATING ENVIRONMENT
Input Power Class 2; 20 to 30 Vdc, 24 Vac, 50 to 60 Hz
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)
CO
2
TRANSMITTER
Sensor Type Non-dispersive infrared (NDIR), diffusion sampling
Output Range
0 to 2000/5000 ppm (selectable)
Accuracy ±30 ppm ±3% of measured value
Repeatability
±20 ppm ±1% of measured value
Response Time
<60 seconds for 90% step change
VOC TRANSMITTER OPTION
Sensor Type
Solid state
Output Range
0 to 100% AQI for VOC
Accuracy
±15% of measured value
Output Scale
0 to 1,000 ppb of total VOC (TVOC)
LEVEL
VENTILATION
RECOMMENDATION
TVOC (ppb)
AQI Table*
>61% Greatly increased >610
20 to 61% Signicantly increased 200 to 610
10 to 20% Slightly increased 100 to 200
5 to 10% Average 50 to 100
0 to 5% Target value 0 to 50
CW2 SERIES
Individual or 4-in-1 CO
2
, VOC, RH & Temperature
Air Quality / Gas Detection | Analog Air Quality Sensors
APPLICATIONS
• Controlling ventilation in
response to accuracy
• ASHRAE 62.1 compliant
• Office buildings, conference
rooms, schools, retail stores,
etc.
Microprocessor
based
Microprocessor controlled for
excellent stability
Easy to install
Large wiring terminals on
baseplate and snap-on covers
with security screw simplify
installation and service
Self-calibrating
Innovative self-calibration
algorithm…easy to maintain
Field selectable
Field-selectable outputs for
operation flexibility
Dual-beam NDIR
CO
2
sensor
Dual-beam, non-dispersive
infrared technology (NDIR)
repeatable to ±20 ppm ±1% of
measured value…high accuracy
measurement
Multi-sensor
platform
CO
2
, VOC, RH and temp in one
device…lower installation and
service costs
SPECIFICATIONS
HQ0007676.C 0920
CW2Txxxx CW2Lxxxx CW2Xxxxx
RH TRANSMITTER OPTION
HS Sensor
Thin-lm capacitive, replaceable
Accuracy
±2% from 10 to 80% RH @ 25°C (77 °F)
Hysteresis
1.5% typical
Stability
±1% @ 20°C (68 °F) annually for 2 years
Output Range
0 to 100% RH
Temperature
Coefficient
±0.1% RH/°C above or below 25 °C
(77 °F) typical
TEMPERATURE TRANSMITTER OPTION
Sensor Type
Solid state, integrated circuit
Accuracy
±0.2 °C (±0.4 °F) typical
Resolution
0.1 °C (0.1 °F)
Range
0 to 50 °C (32 to 122 °F)
DISPLAY MODELS
Touchscreen
61 mm (2.4 in), color, backlit, capacitive, 240x300 px
Setpoint: 0-10Vdc. Temperature, humidity or fan speed
selectable
Timeout override: Display timeout**
Lockout override: Touchscreen/button lockout**
LCD
52mm (2.05 in), segmented with 3 buttons
Setpoint: 0-10Vdc. Temperature, humidity or fan speed
selectable
Timeout override: Display timeout**
Lockout override: Touchscreen/button lockout**
SETPOINTS***
Temperature
Setpoint
0 to 10V output
Scale: 10 to 35 °C (50 to 95 °F) /
0 to 50 °C (32 to 122 °F)
Humidity
Setpoint
0 to 10V output
Scale: 0 to 100% RH