PROGRAMMING OF VRAE
4 - 14
CO
cal’ed
reading = 50 ppm
If no gas has reached the sensor after 60 seconds, the
display will show “No gas flow…” and abort the
calibration.
Note
: The reading should be very close to the span gas
value. After about 30 seconds pause, the display will
show the message “Span Cal Done! Turn Off Gas”
3. This completes the single gas calibration procedure for
one sensor. The display shows the single gas calibration
sub-menu for the user to select another sensor or move
to next calibration sub-menu.
4. Turn off the flow of gas. Disconnect the calibration
adapter from the
VRAE
Monitor.
5. Repeat Step 1 to Step 5 to calibrate the next sensor.
6. Press the
[MODE]
key any time during Step 2 abort the
calibration. If the sensor failed the calibration, the
sensor name and an error message “failed, continue?”
will appear. Press
[N/-]
or
[MODE]
key to abort the
calibration. Press
[Y/+]
to repeat the single gas
calibration. In either case, the current calibration data
will not be changed.