Liebherr WKt 4552 GrandCru - Manual (Page 8)

8
Product temperature monitoring connection
LKPv and LGPv laboratory appliances with Profi-Controller
Interface for optional NTC product temperature probe
All LKPv and LGPv models have an integrated interface for connecting an optional available NTC product
temperature probe to the Profi-controller. The controller can be set to display either the internal air temper-
ature, as registered by the air probe or the temperature registered by the product probe or both. Also the
temperature alarm limits as well as the temperature alarm delay for the product temperature probe can be
adjusted by the user to suit individual requirements. In addition the product temperature can be monitored
on an external documentation system via the RS 485 interface.
Whereas the air probe is in a fixed position, the product probe will be located by the user, e.g. in a phial or
in a measurement package in order to simulate a product temperature.
The product temperature probe is water resistant and resistant to corrosion (IP 68 and AISI 316). It complies
with all relevant NSF standards.
Due to possible tolerances of the product temperature probe the temperature displayed can differ from
the product probe temperature. Using the calibration function, the temperature displayed can be aligned
with the product probe temperature at as many as three temperature points. The correction value for the
compensation of the differences can be adjusted in 0,1 °C steps.
Cal.1 1.0°C 0.5°C Cal.2 8.0°C -0.4°C Cal.3 15.0°C 0.8°C
+0.5°C
-0.4°C
+0.8°C