GPD-100 Instruction Manual
PAGE 20 of 27
Rev 1.1(2019.05.23)
6.6.
Span Calibration
Once the measured value is stabilized, press “RUN/MODE” key. Then zero
calibration will be conducted automatically with indicating “WAIt”(wait)
message in LCD. If calibration is successfully finished, “g00d” (Good) will
show up.
If Zero Calibration fails, “FAIL” will appear and remain for 2 seconds. Then it
will transit to calibration mode.
If you press “RUN/MODE” key in “CALb” mode, you will enter calibration
mode.
When “ZERO” icon is blinking at the left corner of bottom, change it to
“SPAN” icon by “
” key or “
” key. While “SPAN” is blinking, press
“RUN/MODE” key. You will enter the span calibration mode.
Select No/Yes by “
” key or “
” key. It indicates whether you do span
calibration or not.
If YES is selected, the number blinks. While the number blinks, you can set
standard gas value by “
” key or “
” key.
Insert standard gas through gas in port with calibration tool. Once the
measured value is stabilized after inserting gas, press “RUN/MODE” key.
Then span calibration will be conducted automatically. If calibration is
successfully completed, “good”(Good) will appear on LCD. Then it transits
to calibration mode.
If it fails, “FA1L” will appear on LCD and then it transits to calibration
concentration display mode.
