wtw Oxi 170, Operating Instructions Manual

Page: 32 / 64

Operation Oxi 170
94 ba24105e08 11/2010
Pt -=5
...
=5
Comparison of the measured temperature
value against a reference thermometer.
Notes:
– Due to the thermal capacity of the sensor,
it is necessary to place it in a container
with at least 2 liters of water.
– Leave the sensor and reference
thermometer in the vessel for at least 15
minutes (in the case of temperature
differences of more than 10 °C for at least
one hour) with occasional stirring so that
the temperatures equalize.
Carry out the balancing:
– Press <ENTER> .
– Set the measured temperature value
(upper display line) to the value of the
reference thermometer with
<UP><DOWN> . The lower display line
shows the correction value.
PCS
tr
REL 1/2
tc
th
(only with RT and
RT RS option)
(depending on the
configuration) Timer settings for relays that are configured
as control relays for a sensor cleaning
system.
The timer settings are described in detail in
section 4.6.
The REL 1 or REL2 status display shows for
which relay the setting has just been made.
Setting Selection/Values Explanation
(values in bold typeface = values on delivery)
1 5
=3
(
°
C
-