YSI MultiLab 4010-2 - Manual (Page 117)

MultiLab 4010-2 What to do if...
ba76142e03 08/2013 117
14.3 Dissolved oxygen
Error message,
OFL
Error message,
Error
14.4 Conductivity
Error message,
OFL
Error message,
Error
More information and instructions on cleaning and exchange of
sensors are given in the documentation of your sensor.
Cause Remedy
– Measured value outside the measur-
ing range
– Select a suitable measuring
medium
Cause Remedy
– Sensor contaminated – Clean the sensor
– Measured temperature value outside
the operating conditions
(display of OFL/UFL instead of a
temperature value)
– Keep to the temperature range
for the test sample
– Defective sensor – Calibrate
– Change sensor cap
– Replace sensor
More information and instructions on cleaning and exchange of
sensors are given in the documentation of your sensor.
Cause Remedy
– Measured value outside the measur-
ing range
– Use suitable IDS conductivity
sensor
Cause Remedy
– Sensor contaminated – Clean the sensor and replace it
if necessary
– Calibration solution not suitable – Check the calibration solutions