What To Do If; Dissolved Oxygen; General Information - wtw Oxi 3315 Operating Manual

What to do if...

Error message
OFL, UFL
Error message,
Error
Sensor symbol
flashes
Display
Meter does not react
to keystroke
48
10 What to do if...

10.1 Dissolved oxygen

More information and instructions on cleaning and exchange of
sensors are given in the documentation of your sensor.
The measured value is outside the measuring range.
Cause
– Measured value outside the
measuring range
Cause
– Sensor contaminated
– Measured temperature value
outside the operating conditions
(display of OFL/UFL instead of a
temperature value)
– Defective probe

10.2 General information

Cause
– Calibration interval expired
Cause
– batteries almost empty
Cause
– Operating condition undefined
or EMC load unallowed
Remedy
– Use a suitable IDS D.O. sensor
Remedy
– Clean the sensor
– Keep to the temperature range for
the test sample
– Replace probe
Remedy
– Recalibrate the measuring system
Remedy
– Replace the batteries (see section
9.1 M , page 46)
AINTENANCE
Remedy
– Processor reset:
Press the <ENTER> and <On/Off>
key simultaneously
Oxi 3315
ba75944e02 03/2012