Goudsmit HGM09S - Brief Introduction; 2.1 Preparing a Measurement; 2.2 Running a Measurement

Gaussmeter HGM09s Operating Instructions
Chapter 2 Brief Introduction
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2 Brief
BriefBrief
Brief Introduction
Introduction Introduction
Introduction
Measurements with the gaussmeter use the Hall effect as a measuring principle. A
Hall probe is a symmetric semiconductor impressed by current. A magnetic field
running vertically to this element generates an asymmetry on the chip and thereby
creates an output voltage that, as a first approximation, is proportional to the prod-
uct of magnetic field strength and the forced current. For higher magnetic field
strengths this dependency is no more linear. This effect is automatically compen-
sated in the device. The gaussmeter thus measures the magnetic flux density locally.
The sensor only captures the component of the magnetic flux density which runs
perpendicularly through it.
2.1
2.12.1
2.1 Preparing a Measurement
Preparing a MeasurementPreparing a Measurement
Preparing a Measurement
• Make sure that the batteries are loaded.
• Connect the device to a personal computer via the USB cable if required. Or
connect the included power supply via the USB socket.
• Connect a measuring probe.
A suitable measuring probe can be plugged in via the Mini-DIN socket on the
top of the device. Each measuring probe is calibrated individually. The calibra-
tion data are stored in the probe memory. On inserting or changing a measur-
ing probe these parameters are read in automatically.
• Switch the device on and off by pressing the I/O
I/OI/O
I/O button longer (approx. 2 sec).
2.2
2.22.2
2.2 Running
RunningRunning
Running a Measurement
a Measurement a Measurement
a Measurement
After switching on the device, the current measuring value is shown continuously.
The display additionally shows further information on the state of the device and the
selected measuring range as well as the measuring mode.
• The measuring range can be changed by pressing the RANGE
RANGERANGE
RANGE button. The
characteristics of this button can be modified in the setup menu. By repeatedly
pressing the RANGE
RANGERANGE
RANGE button both the measuring range and the display unit or
the DC/AC field measurement can be changed.