GB
GMC-I Messtechnik GmbH
9
3.2 Automatic Measuring Range Selection
These multimeters are equipped with automatic measuring
range selection for all measuring ranges except for the
ranges 400 mV
and 10 A. Automatic selection is func-
tional as soon as the instrument has been switched on.
The instrument automatically selects the measuring range
in accordance with the applied measuring magnitude,
which provides for optimum resolution.
The instrument switches automatically to:
3.3 Manual Measuring Range Selection
You can deactivate automatic measuring range selection
and select and define the ranges manually in accordance
with the following table.
➭
First select the desired measuring function with the
selector switch and, if appropriate, the multifunction key.
➭
Briefly activate the AUTO/MAN key.
Manual operation is
de
activated if you press and hold the
AUTO/MAN key until you hear a second acoustic signal,
and the display switches from MAN to AUTO.
When switching back to automatic operation in the
400 mV
range occurs, the 4 V
range is activated.
3.4 Quick Measurements
If you wish to perform quicker measurements than those
possible with the automatic measuring range selection
function, the appropriate measuring range must be fixed by
the function “Manual Meas. Range Selection”, see above.
the next highest range
at
(3999 D + 1 D)
the next lowest range
at
(380 D – 1 D)
AUTO/
MAN
Function
Acknowledgement
Display
Acoust.
Signal
Brief
Manual Operation ON:
Measuring Range is defined
MAN
1 x
Brief
Switching Sequence at:
V
:
400 mV
V
40 V
400 V
600 V
400 mV
4 V
...
V
/:
4 V
40 V
400 V
600 V
400 mV
...
mA
: 40 mA
400 mA
40 mA
...
mA
/: 40 mA
400 mA
40 mA
...
:
40 M
400
4 k
40 k
400k
4000 k
40 M
...
F :
4 nF
40 nF
400 nF
4
F
40
F ...
MAN
1 x
Long
Return to Automatic Range Selection
AUTO
2 x
V
AUTO/MAN
AUTO/MAN
V
V
Example: manual meas. range selection for volts DC
