General Air Products NGP-WM300, Installation, Operation And Maintenance Manual, Page: 29 / 36

1-800-345-8207
Nitrogen Analyzer Instructions
NGP-PSN2 (R217P67)
G
ter the nit is t rne on it ill a to aticall calibrate to roo air. he is la sho l be stable an rea ing .1 .
o chec the nitrogen concentration o a sa le gas: a ter the nit has been calibrate
1. onnect the t bing to the botto o the anal er b threa ing the barbe a a ter onto the o gen sensor.
. ttach the other en o the sa le hose to the sa le gas so rce an initiate lo o the sa le to the nit at a
rate o 1 10 liters er in te. liters er in te is reco en e .
. sing the e a e s re the nit is in the o er o e.
4. llo the nitrogen rea ing to stabili e. his ill ta e a ro i atel 0 secon s or ore.
Component Description
3 ½ Digit Display
The 3 ½ digit liquid crystal display (LCD) provides direct readout of nitrogen
concentrations in the range of 0 - 105.0% (100.1% - 105.0% used for calibration
determination purposes). The digits also display error codes and calibration codes as
necessary.
Low Battery Indicator The low battery indicator is located at the top of the display and is only activated when the
voltage on the batteries is below a normal operating level.
% Symbol
The “%” sign is located to the right of the concentration number and is present during
normal operation.
Calibration Symbol
The calibration symbol is located at the bottom of the display and is timed to activate when
a calibration is necessary.
ON/OFF Key This key is used to turn the device on or off.
Calibration Key
This key is used to calibrate the device. Holding the key for more than three seconds will
force the device to enter a calibration mode
Automatic Calibration -
R 1
NGP-PSN2