Xylem Lab 970 - Manual (Page 55)

Lab 970 What to do if...
55 ba75558e03 11/2009
6 What to do if...
Error message
E1
Error message,
E3
Display of Cln
Display,
LoBat
Display
to
Instrument does not
react to keystroke
Cause Remedy
– Measured value outside the
measuring range
– Use suitable measuring cell
Cause Remedy
– Measuring cell contaminated – Clean cell and replace it if
necessary
– Unsuitable calibration
solution
– Check calibration solutions
Cause Remedy
– Cleaning interval expired – Recalibrate the measuring
system
Cause Remedy
– Batteries almost empty – Replace the batteries (see
page 53)
Cause Remedy
– Time-out of the interface – Check the instrument that is
connected
Cause Remedy
– Operating condition undefined
or EMC load unallowed
– Processor reset:
Press and hold the <SC>
key and switch the meter on