Xylem TURB 430 PORTABLE TURBIDITY METER - Manual (Page 55)

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