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22
5.
open the two module shells: the printed circuit to which the probe must be connected is housed
inside. On the left there are the 1…4 points on which the sensor wires must be welded. The
JP1…JP4 jumpers are in the center of the board. These must be closed with a tin bead for some
type of sensors:
1
2
3
4
Pt100 3 wires
Pt1000
Ni1000
Not Used
Caution!
Before welding, pass the probe cable through the fairlead and gasket.
6.
Weld the wires as shown in the table:
Sensor
Board connection
Jumper to close
Pt100 4 wires
4
JP4
3
JP3
1
JP1
2
JP2
Pt100
4 wires
None
Pt1000 2 wires
JP4
4
JP3
3
JP1
1
JP2
2
Pt1000
2 wires
JP2
Ensure the welds are clean and perfect.
7.
Once the welding operation is complete, close the two shells;
8.
insert the gasket in the module;
9.
screw the fairlead and the ring. Make sure the cable is not twisted while you are screwing the
fairlead. Now the probe is ready.
4.4.3 Direct connection of 4 wire Pt100 sensors
4 wire Pt100
sensors
can
be soldered directly
to the pins of the flying female connector
without making use of the TP47 board. The 4
wires of the Pt100 sensors have to be soldered
as indicated in the figure on the left. In order
to use this type of probe it is necessary to set
up the menu item “Probe Type” as described
at page 9. The P100 probe is recognized upon
turning on the instrument: connect the probe
when the instrument is switched off and then
turn it on.
Sensor
Direct soldering to the connector
Pt100 4
wires
View of the soldering side
of the flying female connector
