What To Do If - wtw NiCaVis 705 IQ TS Operating Manual

What to do if...

"----" display
(invalid measured
value)
Implausible
measured values
44
7 What to do if...
Cause
– User calibration values entered
incorrectly
Sensor check (H2O dest.)
– *
Zero adjustment
*
Sensor check (standard)
*
defective
Zero adjustment
– still erroneous
after several trials
– Unknown
Cause
– Erroneous user calibration
– Substantial change of test sample
(sample matrix)
– Measurement windows dirty
– Sensor setting wrong
– Optical system maladjusted, e. g.
due to inadmissible mechanical
shock
Remedy
– Correct the entry and enter once
or – Repeat
or
– Contact
– See log book
Remedy
– Repeat user calibration. Make sure
– Carry out new user calibration
– Clean the measurement windows
– Check and, if necessary, correct the
– Carry out new user calibration
– Carry out
NiCaVis 705 IQ TS
again (section 4.3.2)
Sensor check (H2O dest.)
*
Zero adjustment
* or
Sensor check (standard)
*
Check conditions, especially clean-
liness (section 4.3.3)
service
the samples for comparison are rep-
resentative.
Measuring mode Measuring loca
,
tion
sensor settings
Sensor check (H2O dest.)
*
Zero adjustment
* or
Sensor check (standard)
*
ba77189e01
or
.
-
or
05/2017