wtw NitraLyt 700 IQ, Руководство по эксплуатации, Страница: 51 / 61

NitraLyt
®
700 IQ What to do if...
7 - 1 ba75397d03 12/2004
7 What to do if...
No measured value
Measurement does not
function
Measurement provides
implausible measured
values
System cannot be
calibrated
Cause Remedy
– Sensor not connected – Connect the sensor
– Unknown – Look in the log book
Cause Remedy
– Electrode not connected – Connect electrode
– Liquid has penetrated the
sensor
– Sensor defective, send it back
– Sensor not connected – Connect the sensor
– Instrument setting incorrect – Correct instrument setting
Cause Remedy
– No calibration performed – Calibrate
– Electrode not connected or
defective
– Check electrode and electrode
connection
– Electrode contaminated – Clean electrode
– Liquid has penetrated the
sensor
– Sensor defective, send it back
– Instrument setting incorrect – Correct the instrument setting
( Measuring mode mg/l or mV)
– Chloride compensation is
switched off
– Chloride compensation with
unsuitable value for chloride
content
– Switch on chloride compensa-
tion
– Determine and enter chloride
content
– Recalibrate (see also section
4.2.1)
Cause Remedy
– Slope of the electrode not
within tolerance (see section
4.1.10)
– Condition the electrode
– If the slope is still outside the
tolerance: Replace the elec-
trode