C7232A,B Sensor and Controller
CARBON DIOXIDE SENSOR
C7232A
APPLICATION
The C7232 Sensor and Controller is a stand-alone carbon
dioxide (CO
) sensor for use in determining ventilation
2
necessity with HVAC controllers. The C7232 measures the
CO
concentration in the ventilated space or duct. The C7232
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is used in ventilation and air conditioning systems to control
the amount of fresh outdoor air supplied to maintain
acceptable levels of CO
in the space.
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C7232B
FEATURES
• Used for CO
based ventilation control.
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• Models available with LCD that provides sensor
readings and status information.
• Non-Dispersion-Infrared (NDIR) technology used to
measure carbon dioxide gas.
• Device provides voltage or current output based on
CO
levels.
2
• Models available with SPST relay output.
• Automatic Background Calibration (ABC) algorithm
based on long-term evaluation reduces required
typical zero-drift check maintenance.
Application ........................................................................
Features ...........................................................................
Specifications ...................................................................
Ordering Information ........................................................
Installation ........................................................................
Wiring ...............................................................................
Checkout ..........................................................................
Appendix ..........................................................................
PRODUCT DATA
Contents
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63-2571-12