User guide

Turb 430 IR/T What to do if...
55
ba75507e03 07/2006
6 What to do if...
6.1 General errors
Display, LoBat
Instrument does not
react to keystroke
Error message,
Error
0, 8, 16, 16384
6.2 Turbidity
Error message,
Measured values
obviously incorrect
Measured value display
< 0.01 FNU
Cause Remedy
The batteries or accumulator
pack are largely depleted
Insert new batteries
Charge the accumulator pack
(see section 3.2)
Cause Remedy
Software error
Operating condition undefined
or EMC load unallowed
Processor reset:
Press the <START/ENTER>
and <PRT> key
simultaneously.
Cause Remedy
Instrument error Repeat measurement
Meter defective,
send meter to WTW for repair
and quote the error number
Cause Remedy
Cell not correctly inserted Lock cell into place
Cell contaminated Clean the cell
Calibration too old Carry out calibration
Cause Remedy
Calibration defective Carry out calibration
Measured value outside the
measuring range
not possible