Installation guide, Wiring, Operation – Veris Industries CRLSxx Install User Manual
Page 2: Pickup tube connection, Crlsxx, Front view, with face plate removed crl, side view

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PAGE 2
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02113
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TM
CRLSxx
INSTALLATION GUIDE
WIRING
1. Feed control wire through conduit adapter and grommeted compression fitting on
the bottom of the housing.
2. Remove terminal blocks by pulling straight up on the green assemblies. Connect
wires as shown at left, and push terminal blocks back in to black receptacles.
3. Tighten compression fitting around control wire until sealed. Snap conduit adapter
onto compression fitting. Refer to specifications for power requirements and relay
rating.
4. Select mA or Volt output using selector switch.
OPERATION
The CRLSxx remote mount CO2 sensor ensures adequate ventilation using NDIR
technology combined with a self-calibration algorithm. The device comes with a
three-foot length of pickup tubing for easy installation. Output is field selectable
(4-20mA/0-5VDC/0-10VDC).
To operate the CRL, install onto a vertical mounting surface. Then apply power and
configure (page 3).
Front View, with Face Plate Removed
CRL, Side View
Front
Supply (High Port)
Return (Low Port)
Back
PICKUP TUBE CONNECTION
0.24" (6.1mm)
O.D. barb fittings
mA
Volt
NC COMM NO
PLUS
ENTER
MINUS
CONFIGURATION
PUSHBUTTONS
V+ CO2-OUT GND
ON
OFF
LOW
ABC
1
2
3
4