8 GMC-I
Messtechnik
GmbH
Disabling Automatic Shutdown
The instrument can be switched to “CONTINUOUS ON”.
➭
Press the
FUNC
key while switching the instrument on with the toggle switch
until an acoustic signal is generated. The “CONTINUOUS ON” function
is indicated at the display with the
symbol.
3
Selecting Measuring Functions and Measuring Ranges
3.1
Automatic Measuring Range Selection
The multimeter is equipped with auto-ranging for all measuring ranges except for
temperature measurement, diode and continuity testing. Auto-ranging is always
activated as soon as the instrument is switched on. Depending upon the mea-
sured quantity, the device automatically selects the measuring range which
allows for best possible resolution.
The instrument automatically switches to the next highest or next lowest
measuring range for the following measured quantities:
3.2
Manual Measuring Range Selection – MAN/AUTO Key
Auto-ranging can be deactivated and ranges can be set manually in accordance
with the following table.
The manual mode is deactivated by pressing and holding the
MAN/AUTO
key for
about 1 s, by turning the rotary switch or by switching the instrument off and
back on again.
Measuring Ranges
Resolution
Switching to the next
highest range occurs
at
(... d + 1 d)
Switching to the next
lowest range occurs
1)
at
(... d –1 d)
V
, V
, A
, mA
,
A
,
, 30 mF, Hz,
4 ¾
31 000
2 800
30 nF
300
F
3 ¾
3 100
280
Key
MAN/AUTO
Function
Acknowledgement
Visual
Acoustic
brief
Manual mode active: utilized measuring range is fixed
MAN
1 x
brief
Switching sequence for:
V:
300 mV
3 V
30 V
300 V
600 V
300 mV
A:
300
A
3 mA
30 mA
300 mA
3 A
10 A
300
A
:
30 M
30
300
3 k
30 k
300k
3 M
30 M
F:
30 nF
300 nF
3
F
30
F
300
F
30 nF
Hz:
300 Hz
3 kHz
30 kHz
300 kHz
1 MHz
300 Hz
: 3.0000
30.000
300.00
3.0000
MAN
1 x
long
Return to automatic measuring range selection
—
2 x
