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Industrial Gaussmeter IGM11 Operating Instructions
Chapter 5 Operation
Status Display
Apart from the measuring value the display shows various status information.
Measuring range
Operating mode
Status
Null Balance
Determined by the laws of physics, measuring probes have a weak null balance. Pos-
sibly, an external magnetic field, such as the earth's field or the remanence of adjacent
metal parts, might cause a zero offset. This influence can be corrected automatically
by the probe compensation. The detected correction values are stored non-volatile.
For this reason, the probe compensation rather seldom becomes necessary.
To compensate the external magnetic fields, the function is
triggered via a digital input assigned in the set-up menu or
via an assigned button. Upon this, the device automatically
starts the null balance. During null balance, the text PROBE NULL SET is displayed.
The null balance takes approx. five seconds. To avoid fatal
errors, this process is interrupted by the error message
OVERFLOW, if the adjacent external field is larger than
10% of the respective measuring value.
Measuring Range
The gaussmeter has 4 measuring ranges. The range limit value is shown at the bottom
left area of the display. The range limit values depend on the ranges themselves and
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The bottom left area of the display shows the currently se-
lected measuring range with the currently selected unit.
The equals sign on the right stands for DC field measure-
ments.
The alternating sign on the right side of the range stands for
AC field measurements.
The message Peak in the lower part shows the operating
mode Fast peak value detection, thus the fast detection of
the maximum values of DC measuring fields.
Access to the device via LAN interface.
An error has been detected.
Figure 13 Status Display
Only carry out the null balance in a preferably field-free area.
Note
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