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13. Instrument firmware version number.
If you need to phone or fax TPS for any further technical assistance, the version
number of your
WP-89
firmware may of benefit to us. The version number is
displayed by the
WP-89
at turn-on.
14. Troubleshooting
14.1 General Errors
Error Message
Possible Causes
Remedy
Meter displays the
word
OFF
, and
switches off.
Battery is below 5.00 volts.
Recharge the battery.
If this fails, check the charger.
If charger OK, replace the
battery.
Meter will not turn
on.
Battery is exhausted.
Recharge the battery.
If this fails, check the charger.
If charger OK, replace the
battery.
Battery does not
charge up when
charger is connected.
1. Faulty battery charger.
2. Faulty battery.
1. Connect the charger and
switch the power on.
2. Display the battery charge
bar graph in the battery
saver menu (see section
11.1).
3. If the bar graph slowly
increases then the charger is
OK. If the bar graph does
not increase, then the
charger is faulty.
4. Replace the charger or the
battery, as required.