wtw LF 170 - Page 33

LF 170 Operation
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ba54104e09 11/2010
Pt -=5 ... =5 °C 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.
Ptr 20 °C
25 °C
Reference temperature for the conductivity
measurement.
This menu item only appears if the
conductivity measuring mode ( ) is
selected.
Setting Selection/Values Explanation
(values in bold typeface = values on delivery)
15
=3
(
°
C
-