Sabroe New PT100 temperature sensor Installation guide

Brand
Sabroe
Model
New PT100 temperature sensor
Type
Installation guide
Mounting Instruction 0179--020 1
Mounting Instruction
Sabroe Refrigeration (YORK Denmark ApS), Technology & Products
Christian X’s Vej 201, P O Box 1810, DK-8270 Højbjerg, Denmark
Phone +45 87 36 70 00, Fax +45 87 36 77 05
29 May 2008
Subject: New PT100 temperature sensor
Fig. 1
PT100 short type KPJ 5452802--80
PT100 short type KPJ 5452802--80--2
G1/4”
DKA sealing KPJ 10115068
Reducer G 1/2”B / G1/4”B
KPJ10115066
Welding boss KPJ 10115067
Sabroe set no. 3084--794 / 3084--802:
PT100 sensor
DKA sealing ring
Reducer with threads for G 1/2”B and G1/4”B
Welding boss
4 m cable premounted KPJ 10111531
Mounting Instruction
Mounting Instruction 0179--020 2
The PT100 sensor you have just received completely replaces the previous PT100 sen-
sors. The new type is equipped with a G1/4B thread for fitting in the compressor block
or in the sensor pockets of the piping system.
Old compressors and plants can be executed with a G1/2”B thread and in such cases
you must use the enclosed thread adaptor. This adaptor is executed in such a way that
it seals automatically when tightened. Hence, no sealing ring is needed.
When mounting the new PT100 sensor, always use the enclosed DKA sealing ring as
showninfig.1.
As this PT100 sensor is used with a different type of plug, this plug must be fitted on the
cable instead of the former one. The procedure is described below.
Mounting
Dismantle the socket by removing the
centre screw and take out the inner part
using a small screwdriver. Mount the
wires through the cable gland according
to fig. 2 and 3 as well as the schematic
control diagram in fig. 5 from the current
wiring diagram.
Fig. 2
2314
Terminal number in plug
The stated numbers, shown in fig. 3, are cast into the end surfaces of the plug in very
small figures.
We recommend mounting the wires on the terminals before mounting the connector on
the PT100 in order to avoid any distortion of the terminals.
3
1
2
Blue
Blue
White
White
No number.
Use it as terminal no. “4”
The PT100 sensor is a 4 wiring
sensor. The flat terminal is terminal
no. 4 and not “ground”. Therefore,
do not mix the PT100 socket with
other sockets such as those of
pressure transducers.
Fig. 3
When refitting the plug, terminal 4 is flat compared to the other terminals in the plug.
Note this to ensure that the electrical connection is correct.
Mount the rubber gasket and the socket and tighten the centre screw in the socket.
By loosening the union nut, pos 1, and
the centre screw, pos. 2, the terminal box
can be turned in order to make the
branch point in the desired direction.
See fig. 4.
1
Fig. 4
2
KPJ 5452802--80--2
Mounting Instruction 0179--020 3
9.18
11.1
Fig. 5
Protection circuit
PT input no. 2 Protection circuit
PT input no. 3 Protection circuit
PT input no. 4
Protection circuit
PT input no. 1
Micro processor
PT 100 sensor
PT 100 sensor
PT 100 sensorPT 100 sensor
Brine/water and
intermediate (recip.compr.)
temperature
-- if used remove
resistor
Oil
temperature
Discharge
temperature
Suction
temperature
UNISAB II -- Schematic control diagram -- Temperature analogue
inputs for CMO/TCMO, HPO, SMC/TSMC, HPC, SAB and VMY
Te mp . PT100 value S=
80.31 ohm
100.00 ohm
168.46 ohm
51 mVDC
63 mVDC
104 mVDC
1
4
2
1
4
3
2
3
1
4
1
2
3
4
2
3
13
14
15
16
17
18
19
20
S
S
21
22
23
24
25
S
26
27
28
S
9.18
11.1
1 2 3 4 5 6 7 8 9 10 1112131415 161718
100 ohm
31
2
Blue
White
White
Blue
Scale: --50°C to 180°C
Scale: --50°C to 180°C
Scale: --50°C to 180°C
Scale: --50°C to 180°C
No number.
Use it as
terminal no. “4”
--- 5 0 ˚C
0˚C
180˚C
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Sabroe New PT100 temperature sensor Installation guide

Brand
Sabroe
Model
New PT100 temperature sensor
Type
Installation guide
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