Pro CO
2
TM
Carbon Dioxide Analyzer
NUVAIR Rev.02.14.12
Page
16
Pro CO
2
Carbon Monoxide Analyzer Manual
9.0 Spares and Accessories
9.1. Sensors
Sensor replacement for Pro CO
2
9.2. Calibration Equipment
Calibration check requires certified CO
2
calibration gas
to be delivered at a specific flow rate and pressure.
A variety of calibration gas canisters are available from
Nuvair, with compatible Flow Restrictor/ Regulator
assemblies to regulate the gas.
10.0 Troubleshooting
SYMPTOM
REASON
SOLUTION
Battery symbol
Low Battery
Change the battery
No display
Switched off
Bad connection
Low Battery
Switch on
Check display/ battery connection
Change the battery
Reading erratic
Pressure on sensor
Radio transmission
Sensor old or faulty
Condensation on sensor.
Check flow
Move unit away
Change sensor
Dry in air
Display segments missing
Display faulty
Return to dealer
Reading drifts
Rapid temperature change
Stabilize temperature & recalibrate
Flow Restrictor/
Regulator
Assembly
Nuvair
Calibration Gas
Specs:
CO 10 ppm
CO2 1000 ppm
Nitrogen Balance