Pro H2O Alarm Moisture Analyzer
NUVAIR
Page
8
www.nuvair.com
4.0 Operation
Prior to each Analyzer use:
1) To turn the unit on, hold the On/Off button until the display show “On”. Monitor the display
for low battery warning. Replace battery immediately if warning appears. Once fully
cycled the screen should read “000”.
2) The display will cycle through a couple screens and finish with the current relative
humidity percentage of moisture being sensed.
3)
At this time the Alarm function should be activated by holding the “On/Off” and
“Prog” buttons until the display flashes ALN, then ON. The alarm function is active
when a triangle is present in the upper left corner of the display.
4) Cycle through the current alarm settings of the analyzer.
a.
Hold down the “Prog” button for 2 seconds then use the “On/Off” button to cycle
through the 1
st
Alarm Value, 2
nd
Alarm Value, Full Scale Value, and Pressure
Value. The “End” screen will display for a couple seconds before going back to
the current percentage of moisture.
b.
Adjust Alarm values at this time if needed see
“4.2 programing”
4) Pressing the Adjust key it is displayed the Temperature value (°C) (TeM).
4.1) Pressing again the ADJUST key PPM in volume (PPM) is displayed.
4.2) Pressing again the ADJUST key Absolute humidity (gr/m3) (AbH) is displayed. The
absolute humidity is the mass of water vapor in a particular volume of dry air
4.3) Pressing again the ADJUST key Dew Point (°C) (td) is displayed.
4.4) Pressing again the ADJUST key Mixing ratio (gr/Kg) (Mr) is displayed. The mixing
ratio is the mass of water vapor in a particular mass of dry air.
4.5) Pressing again the ADJUST key Volt output of the battery (Bat) is displayed.
4.6) Pressing again the ADJUST key zero Offset value (OFS) is displayed. This value is 0
if the analyzer is not adjusted in dry gas. If the instrument was adjusted in 0% RH, OFS is
the value of the relative humidity at the zeroing time. During the OFS visualization,
pressing at the same time for three seconds ON/OFF and ADJUST key, the instrument
will lose the 0 Adjustment, and the OFS value will go to 0.
4.7) Pressing again the ADJUST key Relative humidity value is displayed. (Home
Screen)
5) Check Calibration of Analyzer using “Calibrated Test Gas”
Gas, even under moderate pressures, can cause extreme bodily harm. Never allow any
gas stream to be directed at any part of your body.
Low Battery
Indication
Ready For
Gas Analyzing
