15. Initialising the WP-80
If the calibration settings of the WP-80 exceed the allowable limits, the
unit may need to be initialised to factory default values. This action may
be required if the electrode is replaced.
To initialise the WP-80:
1. Switch the WP-80 off.
2. Press and hold the key while switching the WP-80 back on.
3. The following messages should be displayed:
Initialized
MUST ReCalibrate
then :
WP80s V3.5 S1234
pH mV Temp.
(The “s” after WP-80 is shown when the RS232 serial port option is
fitted)
4. The meter then displays pH and Temperature. Note that the decimal
points have been replaced with a ∗, to indicate that the unit requires
recalibration.
Note: When the WP-80 is initialised, the automatically recognised
buffers are re-set to pH4.00, pH6.88 and pH9.23. See section 14 if
you prefer to use pH7.00 instead of pH6.88 and pH10.00 instead
of pH9.23.
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