YSI IQ SensorNet FDO Sensor User Manual
Page 34
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What to do if...
FDO
®
70x IQ ...
Measured value invalid
( "----" displayed)
Incorrect temperature
display
Cause
Remedy
– User calibration unsuccessful.
The sensor is blocked for mea-
surement.
– As a temporary measure to
quickly restore the readiness
for service: Activate the fac-
tory calibration (see section
– For exact measurements,
carry out a function check and
repeat the user calibration if
necessary.
Cause
Remedy
– Temperature sensor defective
– Return the sensor
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