What to do if – YSI P 700 IQ Analyzer User Manual
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P 700 IQ
6. What to do if ...
Display “----”
Implausible measured
values
Cause
Remedy
No (valid) measured value avail-
able
Start measurement
and wait for the measurement to
be finished (5 .. 7 min)
Calibration error
Carry out calibration
Container for reagent empty
Check the liquids and connect a
new set of liquids if necessary
Liquid container not correctly
connected
Connect correctly
Sample intake does not work
Check the pump
Switch on the pump
Cleaning the overflow vessel
Power failure
Restart measurement in the cali-
bration and service menu.
Automatic start of measurement
Unknown
See log book
Cause
Remedy
Wait for another measurement
Calibration error
Carry out calibration
Measuring cell of the photometer
unit dirty
Carry out cleaning procedure
Container for reagent RE 2.5 is
empty
Exchange RE 2.5