18
With the water trap disconnected, press enter and the display will
change to:
Zeroing
*..............
PressCANCELtoabort
The sampling pump will start and the PrinterNOx will monitor the
output of both sensors until a stable reading is obtained.
During this time, a line of asterisks appears on the screen to indicate
correct operation.
When zeroing is complete the readings for the NO and NO
2
sensors
are written into the battery backed memory and the display is
changed to:
Calibration
-----------
1CalibrateNO
2CalibrateNO2
3Exit
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