Rotronic radiation shield & MP102H modifications

The radiation shield modifications:

-Junction box removed

-The hole from the arm to the junction box widened close to the inner width of the arm

-The connector for the fan power removed and an extension piece with a 5-pin M12 male connector reaching about 10 cm out from the arm added (+24 V connected to pin 1 and GND to pin 2)

-A power cord of the required length with a 5-pin M12 female connector with the same pin configuration added

The MP102H modifications:

-Shield connected to the power ground inside the sensor

-The cord cut to the reach about 10 cm out from the arm

-A Binder 712 male connector added with the connections listed below

-A Sabix D 315 FRNC 12*0,14 mm² cable of the required length with a Binder 712 female connector added with the connections listed below

Table 1. MP102H wire connections

New sensors have been measured for comparison with Ekis PT100 with a Delta-T DL2e logger and a 4-wire card with the wire configuration listed in table 2. In one channel there have also been used a VFR S102CT 100 ohm (±0,01%) precision resistor to track possible errors.

Table 2. Wire connections for measurement