Reliable Controls SS-P - Carbon Dioxide Sensor Option (-CO2); CO2 Sensor Overview

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®
Corporation. All rights reserved.
CARBON DIOXIDE SENSOR OPTION (-CO2)
SMART-Sensor
™
models with a CO
2
sensor (SS-CO2) feature a 0–2000 PPM CO
2
sensor that can
accurately measure a space’s Carbon Dioxide levels within ±50 PPM. The CO
2
sensor has automatic
calibration built-in and only adds 2 mA current draw to the base model SS.
OVERVIEW
SMART-Sensor
™
models with the -CO2 option have some significant differences from non-
CO2 models, including:
FIGURE 67: SS-CO2 MODEL CIRCUIT BOARD
• The duplex RJ11 connection port on the rear of the sensor head has been
removed to make room for the CO
2
sensor,
• A special backplate is included to compensate for the CO
2
sensor depth,
• The backplate has a small hole and plastic grommet for wire penetration,
• The SS-CO2 comes with both a manual and automatic calibration features,
and
• The PPM reading resolves to 1 PPM.
The CO
2
sensor has replaced the duplex RJ11
jacks in -CO2 models
The backplate for -CO2 models has been made
deeper than the standard backplate.