What to do if...
CarboVis 70x IQ TS
44
ba75950e03
05/2017
7
What to do if...
"----" display
(invalid measured
value)
Implausible
measured values
Cause
Remedy
– User calibration values entered
incorrectly
– *
Sensor check (H2O dest.)
or
*
Zero adjustment
or
*
Sensor check (standard)
defective
– Correct the entry and enter once
again (section 4.3.2)
– Repeat
*
Sensor check (H2O dest.)
or
*
Zero adjustment
or
*
Sensor check (standard)
.
Check conditions, especially clean
-
–
Zero adjustment
still erroneous
after several trials
– Contact
service
– Unknown
– See log book
Cause
Remedy
– Erroneous user calibration
– Repeat user calibration. Make sure
the samples for comparison are rep
-
resentative.
– Substantial change of test sample
(sample matrix)
– Carry out new user calibration
– Measurement windows dirty
– Clean the measurement windows
– Sensor setting wrong
– Check and, if necessary, correct the
Measuring mode
,
Measuring loca
-
tion
sensor settings
– Carry out new user calibration
– Optical system maladjusted, e. g.
due to inadmissible mechanical
shock
– Carry out
*
Sensor check (H2O dest.)
or
*
Zero adjustment
or
*
Sensor check (standard)
Summary of Contents for wtw CarboVis 701 IQ TS
Page 59: ......
