Using Method - LG PES-C0RV0 Manuel D'installation

Using Method

⑥ Test operation and troubleshooting.
Self diagnostics
• The wrench sign and yellow LED is turned on if an error is found.
• The wrench is shown and the yellow LED is lit during the first seconds after power up and if the
measuring range exceeded.
• They are automatically turned off when the sensor returns to normal operation.
Phenomenon, found in initial power up stage
• If unstable CO2 concentration readings are continue, even after 5 minutes of warm-up time, get
the G-(System supply) to be grounded.
• When CO2 readings fluctuate with more than 200ppm of gap, it could be considered to be
unstable reading.
Using Method
① Power, being supplied to sensor initially, a wrench sign will be shown on LCD for 2~3 seconds.
In 2~3 seconds, ambient CO2 concentration will be displayed, while the wrench sign disappears.
② The digit, displayed on LCD, is CO2 concentration of ambient air in ppm [parts per million].
③ The CO2 reading will be updated every 3 seconds, based on measured value of CO2 by the
operation of infrared lamp.
④ Ventilation system will be automatically operated based on the sensor's readings.
⑤ Other inquiries on product and its installations will be handled by local sales representative.
8 CO2 Sensor