wtw Turb 550, Operating Manual

Page: 43 / 54

What to do if ...
43
6 What to do if ...
Cause Remedy
– Wrong calibration
standard used
– Use the correct calibration
standard
– The lamp is defective – Replace the lamp module
Cause Remedy
– Wrong calibration
standard used
– Switch the instrument off.
Switch the instrument on
again and repeat the
calibration using the
correct calibration
standard
Cause Remedy
– The lamp is defective – Replace the lamp module
Cause Remedy
– The instrument is
measuring but the
measured value is not
yet stable
– Wait for a stable
measured value
– There is a foreign body in
the cell shaft
– Remove the foreign body
Error message
E-01
Error message
E-02 or E-03
or E-04
Error message
E-05
“- - -” display