Delta OHM HD3406.2, User Manual, Page: 19 / 44

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Do the following to open the module and connect a probe:
unscrew the fairlead and extract the gasket, remove the label using a cutter, unscrew the ring on the
opposite side as illustrated in the figure:
Open the two module shells: the printed circuit to which the temperature probe must be connected is
housed inside. The wires coming from the conductivity cell are welded directly onto the 1 - 2 - 4 - 5
connector's pins.
On the left there are the 1…4 points on which the Pt100 or Pt1000 sensor wires must be welded.
The JP1…JP4 jumpers are in the center of the card. These must be left open:
1
2
3
4
Pt100 3 fili
Pt1000
Ni1000
Not Used
Before welding, pass the probe cable through the fairlead and gasket.
Weld the temperature sensor wires as shown in the table:
Sensor TP47 card connection Jumper
Pt100 4 wires None
Pt1000 2 wires None