Connectors; Probe Input; Analog Output; Serial Interface Rs 232 C / Limit Relays Output - Magnet-physik FH 54 Operating Instructions Manual

Gauss- / Teslameter
probably the Hall sensor in the probe is defective. You may send it to MAGNET-PHYSIK
for inspection.
A Hall sensor may be damaged by mechanical stress, as it can occur if the probe stem is bent.
Strokes or excessive temperatures can also cause damage.

8.5 Connectors

The 9-pole connector for the serial interface, the analog output and the 15-pole connector for
the probe are located on the upper side.

8.5.1 Probe Input

The DB 15 connector is used for probe connection. The plug of the probe must carefully be
inserted to avoid bending of the contact pins. Use the two screws to fix the plug.

8.5.2 Analog Output

The analog output can be accessed via the BNC (Bayonet Nut Connector). The signal is on the
center contact. The analog output gives a 3 V signal, that is proportional to the output voltage of
the sensor. It is not corrected for linearity and offset and will therefore differ from die value
shown in the display.

8.5.3 Serial Interface RS 232 C / Limit Relays Output

The serial interface is a standard feature of the FH 54. The relay output is available as an
option.
BA - Nr.: 2000540EBA01
BNC connector
PIN DESCRIPTION
1 Analog output - center connector
Ground – Connector shielding
2
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EPTEMBER
TH
, 2019
FH 54
Page 36