Operation; Initial Setup - Magnet-physik FH 54 Operating Instructions Manual

Gauss- / Teslameter

4 Operation

4.1 Initial Setup

To take the FH 54 into operation proceed as follows.
1. Install batteries: The batteries are located in a compartment at the lower end of the FH 54.
Press the two fingerboards at the sides of the case to remove the cap. Take hold of the strap
and press it slightly down to unlock the battery compartment and pull it straight out. Remove
the screw to open the cover of the battery compartment. Install 5 "AA" Batteries observing
the polarity signs for each cell. Always replace all cells. Close the battery compartment door.
Move the battery compartment into the instrument and make sure that it clicks into place.
Close the cap.
2. Install probe: Plug the probe into the connector at the top of the field strength meter. Use the
side screws to secure the connector.
3. Make sure that all other connections are made before you switch on the instrument
(Interface, analog output, power supply)
4. Push the Power On key for minimum one second. The LCD will display FH 54 and then the
display will return to the state it was in before being switched off. For best results, the
instrument and probe should warm up for at least 5 minutes before zeroing the probe, and at
least 30 minutes for rated accuracy. The probe and the shielding chamber should be at the
same temperature.
5. Place the probe in the magnetic shielding chamber and press the Zero key on the front panel.
6. Press the Enter key. The message Adjusting Zero is shown until the normal display appears
again. Do not move the probe while the Adjusting Zero message is being displayed.
7. If the unit has performed well to this point, the unit is functioning properly. If you have a
reference magnet available, you can continue with the test using the magnet to verify the
accuracy of the FH 54.
8. If continuing the procedure with a reference magnet, ensure the probe can accommodate the
range of the magnet. Use the Range key to select the proper range (or press Auto for
BA - Nr.: 2000540EBA01
Fig. 2 : Magnetic shielding chamber NK 1
S , 24
EPTEMBER
TH
, 2019
FH 54
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