YSI P 700 IQ Analyzer - Manual (Page 95)

ba76133e01 09/2013 95
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