General Errors - wtw pH/ION 340i Operating Manual

What to do if...
TP and Temp Error flash
Calibration Std 2 flashes
Calibration Std 3 flashes
Display LoBat
Instrument does not
to keystroke
68
Cause
In calibration:
– Calibration standards do not
have the correct temperature
(max. temperature difference
2 °C)
In measurement:
– Test sample does not have the
correct temperature (max.
temperature difference
Cause
– Standard 2 = Standard 1
Cause
Requirement not met:
– Standard 3 > Standard 2, if Std
2 > Std 1 or
– Standard 3 < Standard 2, if Std
2 < Std 1
6.3

General errors

Cause
– Batteries almost empty
Cause
react
– Operating condition undefined
or EMC load unallowed
Remedy
– Temper the calibration
standards
±
– Temper the test sample
±
2 °C)
Remedy
– Use different calibration
standards
Remedy
– Use different standard 3
Remedy
– Exchange the batteries (see
section 5.1 M
Remedy
– Processor reset:
Switch the instrument on
while pressing the <CAL> key
pH/ION 340i
)
AINTENANCE