Xylem YSI VARiON Plus 700 IQ H, Руководство по эксплуатации, Страница: 47 / 62

VARiON
® Plus
700 IQ H What to do if ...
47
ba76207e02 12/2020
8.2 Error causes and remedies
No measured value
display
Measurement provides
implausible measured
values
Cause Remedy
– Sensor not connected – Connect the sensor
– Incorrect electrode equip-
ment
– Correct electrode equipment
– Electrode(s) not at all or
incorrectly recognized by the
system
– Check the installation and con-
tacts of the electrode (gap-free
mounting)
– Check electrode receptacle for
moisture
– If necessary, unscrew the elec-
trode/blind plug and thoroughly
dry the electrode/blind plug and
receptacle
– Unknown – Look for error messages in the
log book
– Liquid in the sensor shaft – Contact the service department
Cause Remedy
– No matrix adjustment carried
out
– Carry out matrix adjustment
– Error during matrix adjust-
ment (e.g. incorrect labora-
tory values)
– Check the conditions of the
matrix adjustment
– Carry out new matrix adjust-
ment
– Calibration error
(e.g. contaminated standard
solutions)
– Check the calibration condi-
tions
– Recalibrate
– Reset to default calibration
– Manual interfering ions com-
pensation works with an
unsuitable value
– Determine and enter the inter-
fering ions compensation once
again