Gaussmeter IGM11 Operating Instructions
Chapter 5 Operation
Page 26 / 106
MAGSYS
magne t
systeme
Version 01/2013
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me GmbH - All Rights Reserved.
5.3
Status Display
Apart from the measuring value the display shows various status information.
The bottom left area of the display shows the currently selected
measuring range with the currently selected unit.
The equals sign on the right stands for DC field
measurements.
The alternating sign on the right side of the range stands for
AC field measurements.
Measuring range
Operating mode
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.
Status
An error has been detected.
Figure 13 Status Display
5.4
Null Balance
Determined by the laws of physics, measuring probes have a weak null balance.
Possibly, 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.
Note
Only carry out the null balance in a preferably field-free area.
Trial Version
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