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Connecting
Connecting temperature sensors
Note
Handle temperature sensors with care!
Length of temperature sensor cable must not be altered as it affects meter accuracy.
When connecting temperature sensors, please observe the coloured type labels:
● Red: forward temperature sensor.
● Blue: return temperature sensor.
1. Feed sensor cables through entries as marked in fig.
2. Connect to terminals 5-6/7-8 as described in the following table.
3. Press each sensor cable into strain relief.
Application type
Calculator district heating,
flowmeter in return line (pipe)
Calculator district heating,
flowmeter in forward line (pipe)
Calculator chilled water,
flowmeter in return line (pipe)
Calculator chilled water,
flowmeter in forward line (pipe)
Calculator combined
cooling/heating, flowmeter in
return line (pipe) by heating
Calculator combined
cooling/heating, flowmeter in
forward line (pipe) by heating
Table of type connection for installation
22
The four pre-mounted wire links (1-5, 6-2, 3-7 and 8-4) can be removed if local 4-wire
temperature sensors are used. For standard 2-wire temperature sensors supplied wire
links must be assembled.
Temp. sensor
type label
color
Red
Blue
Red
Blue
Red
Blue
Red
Blue
Red
Blue
Red
Blue
Connection
terminals for
installation position
2-wire type
5 T
6
Forward "hot line"
H
7 T
8
Return "cold line"
C
5 T
6
Forward "hot line"
H
7 T
8
Return "cold line"
C
5 T
6
Return "hot line"
H
7 T
8
Forward "cold line"
C
5 T
6
Return "hot line"
H
7 T
8
Forward "cold line"
C
5 T
6
Forward "hot line"
H
7 T
8
Return "cold line"
C
5 T
6
Forward "hot line"
H
7 T
8
Return "cold line"
C
Operating Instructions, 01/2010, SFIDK.PS.022.F4.02
Temp. sensor
installation place
(F) return "cold line",
low temperature
(F) forward "hot line",
high temperature
(F) forward "hot line",
high temperature
(F) return "cold line",
low temperature
By heating:
(F) return "cold line",
low temperature
By heating:
(F) forward "hot line",
high temperature
Flowmeter (F)
SITRANS FUE950
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