Pro H2O Alarm Moisture Analyzer
NUVAIR
Page
9
www.nuvair.com
Never expose the sensor to pressures above atmospheric pressure (0 P.S.I.) or you may
cause damage to the sensor and/or receive false readings. Damaged Sensors will not
provide accurate gas analysis. Inaccurate gas analysis can lead to serious personal
injury or death.
It is very important that the calibration take place at atmospheric pressure (1 bar) and
with calibrated test gas that has no moisture in it.
The Pro H
2
O
TM
can be used to monitor a regulated gas sample flow, the contents of a gas
cylinder, or the flow from a regulator:
•
If analyzing a gas flow, the Sample Flow Method is the preferred method. The flow rate
must equal 0.5 to 1 L/min at atmospheric pressure (1 bar). To produce this flow, a Flow
Restrictor and Regulator may be required. Contact Nuvair if you need assistance.
4.1. Sample Flow Method of Checking Calibration (Preferred)
Nuvair offers gas testing kits see addendum for more information.
Testing Gas must not contain Moisture for calibration to succeed.
Step 1. Attach
Flexible Tubing
to Gas Sample
Flow of 0.5 to 1
L/min
Step 2. Verify
that Gas is
Flowing Out
Holes in Flow
Adapter Cap
Step 3. Allow 30
Seconds for Display
Reading to Stabilize
Step 4. Record
Reading while Gas is
Flowing
Flow Restrictor/
Regulator
Assembly
Moisture Free
Calibration Gas
Canister
