Proline Edition X heating thermostats
40
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10/9/2018
7.7.2 Displaying the actual external temperature
With all Proline Thermostats an external temperature probe can be connected, which for example......
1. ... can be used as an independent temperature measurement channel.
2. ... can be used as the controlled variable for the bath temperature in applications with a no-
ticeable temperature gradient (between the internal bath temperature and an external load).
The setup is described in Section 7.7.4. With the function described in the following, you on-
ly change over the display!
External actual temperatures can also be read in by interface modules (
8).
Connection of the external Pt100 to the Lemo socket 10S
Contact on
socket 10S
1
2
3
4
+
+
-
-
I
U
U
I
Current circuit
Voltage circuit
Voltage circuit
Current circuit
Pt100
DIN EN 60751
Plug: 4-pole Lemosa for Pt100 connection (Order No. EQS 022).
Use screened connecting leads. Connect screen to plug case.
Master
EXT
oder
Switches to the actual-value display of the external temperature
probe (or to the actual value received from an interface module
(
7.7.4)).
EXT
is lit in green next to the row of figures.
If no external Pt100 probe is connected,
-----
is displayed.
02%02
°C
EXT
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