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.
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.
3.
Press each sensor cable into strain relief.
Application type
Temp. sensor
type label
color
Connection
terminals for
2-wire type
Temp. sensor
installation position
Flowmeter (F)
installation place
Red
5 T
H
6
Forward "hot line"
(F) return "cold line",
low temperature
Calculator district heating,
flowmeter in return line (pipe)
7 T
C
8
Return "cold line"
Blue
Red
5 T
H
6
Forward "hot line"
(F) forward "hot line",
high temperature
Calculator district heating,
flowmeter in forward line (pipe)
7 T
C
8
Return "cold line"
Blue
Red
5 T
H
6
Return "hot line"
Calculator chilled water,
flowmeter in return line (pipe)
(F) forward "hot line",
high temperature
Blue
7 T
C
8
Forward "cold line"
Red
5 T
H
6
Return "hot line"
(F) return "cold line",
low temperature
Calculator chilled water,
flowmeter in forward line (pipe)
7 T
C
8
Forward "cold line"
Blue
Red
5 T
H
6
Forward "hot line"
Calculator combined
cooling/heating, flowmeter in
return line (pipe) by heating
By heating:
(F) return "cold line",
low temperature
Blue
7 T
C
8
Return "cold line"
Red
5 T
H
6
Forward "hot line"
By heating:
(F) forward "hot line",
high temperature
Calculator combined
cooling/heating, flowmeter in
forward line (pipe) by heating
Blue
7 T
C
8
Return "cold line"
Table of type connection for installation
SITRANS FUE950
22
Operating Instructions, 01/2010, SFIDK.PS.022.F4.02