Section 4 -
Troubleshooting
Symptom
Probable Cause
No display
Battery is flat or not installed
Power supply disconnected
‘BAT’ flag displayed
Battery Low
Wildly erratic readings or display reads --
on left hand side
Electrodes disconnected
Electrodes not immersed in solution
Reference electrode not filled
Reference junction dry
Drifting readings
Inconsistent or lack of stirring
Reference filling solution contaminated
Buffers contaminated
Erratic/drifting readings or display reads –
on left hand side when shorting plug is
attached.
Return meter for servicing
Error Codes
PRO
Temperature probe malfunctioning or not connected
Buf
Wrong or Contaminated Buffer
SL
Poor Electrode Slope caused by faulty electrode or poor
buffers/ standards
E°
Faulty or Aged electrode
E6, E7
Calibration error. Recalibrate with fresh standards or buffers
Electrodes out of solution.
In the event of a malfunction, it is important to pinpoint the problem to either the meter
or the cell. If a spare cell is available, substitute it for the one in use.
There are no user serviceable parts in this instrument. Please ensure that the instrument,
together with all accessories, is returned to EDT Direct ION Ltd or the agent with a full
description of the symptoms.
No attempt should be made to repair the meter.
