Product Overview

CDL/CWL carbon dioxide (CO
2
) sensors maximize energy savings, while
helping optimize ventilation. These sensors allow ventilation systems
to be controlled by the amount of CO
2
present in a space. The CWL/CDL
Series detect fluctuations in CO
2
levels and signal ventilation systems to
provide an inlet of fresh air optimal for the space at a given time saving
energy and increasing tenant comfort.
Input Power
Class 2; 20 to 30 Vdc/24 Vac 50/60 Hz;
100 mA max.
Analog Output
4 to 20 mA (clipped and capped)/0 to 5 Vdc/
0 to 10 Vdc (selectable)
Operating Temp Range:
CDL
CWL
0 to 50 °C (32 to 122 °F)
No humidity option: 0 to 50 °C (32 to 122 °F);
With humidity option: 10 to 35 °C (50 to 95 °F)
Operating Humidity Range 0 to 95% RH non-condensing
Housing Material High impact ABS plastic
Terminal Block Torque:
CDL
CWL
0.2 N-m (2.0 in-lbf) max.
0.22 N-m (2.0 in-lbf) max.
Terminal Block Wire Size:
CDL
CWL
28 to 14 AWG (0.5 to 1.5mm
2
)
30 to 18 AWG (0.08 to 0.5mm
2
)
CO
2
TRANSMITTER
Sensor Type
Non-dispersive infrared (NDIR), diffusion sam-
pling
Output Range 0 to 2000/5000 ppm (programmable)
Accuracy ±30 ppm ±2% of measured value*
Repeatability ±20 ppm ±1% of measured value
Response Time <60 seconds for 90% step change
RH TRANSMITTER OPTION
HS Sensor
Fully replaceable, digitally profiled thin-film
capacitive (32-bit mathematics) U.S. Patent
5,844,138
Accuracy
±2% from 10 to 80% RH @ 25 °C; NIST
traceable multi-point calibration
CWL
CDL
RTD/Thermistors in wall packages are not compensated for internal heating of product.
EMC Conformance: Low voltage directive 2014/35/EU and EMC directive 2014/30/EU.
EMC Special Note: Connect this product to a DC distribution network or an AC DC power
adaptor with proper surge protection (EN 61000-6-1 specification requirements).
* Measured at NTP.
**The CE mark indicates RoHS2 compliance. Please refer to the CE Declaration of
Conformity for additional details.
Note: Rough handling and transportation may cause a temporary reduction of CO
2
sensor
accuracy. With time, the ABC function will tune the readings back to the correct accuracy
range. The default tuning speed is limited to 30 ppm per week.
Hysteresis 1.5% typical
Stability ±1% @ 20 °C (68 °F) annually for two years
Output Range 0 to 100% RH
Temperature Coefficient ±0.1% RH/°C above or below 25 °C (typical)
TEMPERATURE TRANSMITTER OPTION
Sensor Type Solid-state, integrated circuit
Accuracy ±0.5 °C (±1 °F) typical
Resolution 0.1 °C (0.2 °F)
Output Range 10 to 35°C (50 to 95°F)
RELAY CONTACTS
1 Form C (SPDT)
(on wall models, relay is
only available in units
without the setpoint slider
option)
1 A@30 Vdc, resistive; 30 W max.
WARRANTY
Limited Warranty 5 years
AGENCY APPROVALS
**
APPLICATIONS
• Controlling ventilation in
response to occupancy
• ASHRAE 62.1 air quality
standard compliance
• Office buildings, conference
rooms, schools, retail stores, etc.
SPECIFICATIONS
800.354.8556
|
+1 503.598.4564
|
[e-mail]
|
[e-mail]
|
www.veris.com
TM
Air Quality / Gas Detection | Deluxe Duct & Wall CO
2
Sensors
C SERIES
Individual or 3-in-1 CO
2
, RH and Temperature
Microprocessor
based
Microprocessor-based design
increases accuracy and reduces
installation time
Snap-on
faceplate
Snap-on faceplate…no screws
required, making installation and
service easy
Self-calibrating
Innovative self-calibration
algorithm…easy to maintain
Field-selectable
Field-selectable outputs for
operation flexibility
NDIR
Non-dispersive infrared
technology (NDIR) repeatable to
±20 ppm ±1% of measured
value…high accuracy
measurement
Integrated probe
Integrated transducer and
probe…eliminates the need to
install a separate pick-up tube
HQ0001739.G 0117