Pro He
TM
Alarm Helium Analyzer
NUVAIR
Page
11
www.nuvair.com
4.2. Programming Procedures
Keep the “Prog” button pressed for more than two seconds and then release the button.
“Pr” should display for two seconds and then the display will change to AL 1 and alternate
with the 3 digit set value.
It is possible to program:
o
AL 1
Low alarm point expressed in ppm of Helium concentration
o
AL 2
High alarm point expressed in ppm of Helium concentration
o
FSC
Value expressed in ppm of Helium concentration corresponding to the current
output full scale value (20mA). 4mA always correspond to 1999 ppm He
concentration.
o
tOn
Time on value- This is the time the analyzer will stay on before auto powering
off.
At the end of the programming procedure the display will show “End” and the instrument
will display the Helium content in the gas mix.
Below are the actual screen views of each of the modes. (*Calib button say as adjust)
Program
Alarm 1
Alarm 2
Full Scale Value
End
Auto Time Off
