Pro H2O Alarm Moisture Analyzer
NUVAIR
Page
7
www.nuvair.com
2.6. Flow Adapter Cap
The Analyzer includes a Flow Adapter Cap with flexible tubing and flow orifice. It attaches to the
Sensor port and is sealed by an o-ring. It can be used to direct the gas sample flow to the
Sensor via one of two methods:
Flow to the sensor needs to be restricted to .5-1liter of pressure maximum. Nuvair offers flow
restrictors to accomplish this task. See appendix.
3.0 Calibration
Analyzer calibration must be verified on a daily basis. Improper calibration may result in
an incorrect reading, delivering inaccurate levels of moisture being monitored.
This Analyzer must always be checked with a calibration gas and used with gases
regulated and supplied at atmospheric pressure (0 P.S.I.). Use of gases at higher
pressures may result in incorrect readings and may damage the Analyzer. Incorrect
readings will deliver inaccurate moisture readings.
Checking Calibration or use of the Analyzer with a low battery may result in inaccurate
readings. Inaccurate gas analysis can lead to serious personal injury or death.
If the Analyzer has been subjected to a recent change in ambient temperature, allow it to
stabilize for one hour before checking calibration.
Verify calibration on a daily basis. Breathing gas applications require the use of a certified
calibration gas with no moisture concentration and flow rate of 0.5-1 L/min. The equipment to
produce this flow is available from Nuvair. See Spares and Accessories section.
To assure the greatest accuracy for other applications, use the calibration gas concentration
closest to the expected concentration in the gas being measured.
Sample Flow Method
Flow is Delivered from
Low Pressure Source
via Flexible Tubing
Direct Flow Method
Flow is Directed to
Flow Orifice on Face
of Flow Adapter Cap
Vent Hole
