TPS WP-81 User Manual

Page 40
20. Troubleshooting
20.1 General Errors
Error Message
Possible Causes
Remedy
Factory Cal.
Failed
See
Handbook
The EEPROM chip which
contains the factory
calibration information
has failed.
The unit must be returned to
TPS for service.
Memory Failed
Calibration Lost
Initialised
MUST ReCalibrate
User calibration settings
have been lost or
corrupted.
Re-calibrate the instrument.
A 2-point calibration will be
required for Conductivity, &
pH (sections 4.1 & 5.1) and a
1 point calibration for
temperature (section 7.1).
Flashing
symbol.
Battery is below 5.60
volts.
Recharge the battery. Note
that the unit will switch itself
off when the battery falls
below 5.00 volts.
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.
1. Battery is exhausted.
2. Faulty Instrument
Recharge the battery.
If this fails, check the
charger.
If charger OK, replace the
battery.
Return to factory for repair.
Battery does not
charge up when
charger is
connected.
1. Faulty battery charger
or faulty battery.
2. Faulty instrument.
Connect the charger and
switch the power on. Display
the battery volts in the
battery saver menu (section
13). If the battery volts are
increasing then the charger
is OK. If the battery volts do
not increase, then the
charger is faulty. Replace the
charger or the battery, as
required.
Return to factory for repair.

TPS WP-81 Specifications

General

Brand	TPS
Model	WP-81
Category	Measuring Instruments
Language	English