Dranetz DranTech Xtra, Руководство пользователя

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18
DranTech X
TRA
User’s Guide
Control Functions
4 Control Functions
4.1 Selecting Measuring Functions and Measuring Ranges
The rotary switch is linked to the automatic socket blocking mecha-
nism, which only allows access to two connector jacks for each func-
tion. Be certain to remove the appropriate plug from its respective jack
before switching to and from the “A” functions. The socket blocking
mechanism prevents the user from inadvertently turning the selector
switch to impermissible functions after the measurement cables have
been plugged in to the instrument.
4.1.1 Automatic Range Selection
The multimeter is equipped with auto-ranging for all measuring func-
tions, except for temperature measurement, diode and continuity test-
ing, and the MHz measuring function. Auto-ranging is active as soon
as the instrument is switched on. The instrument automatically selects
the measuring range which allows for highest possible resolution of
the applied quantity. When the instrument is switched to frequency
measurement, the previously selected voltage measuring range re-
mains active.
The Auto-Ranging Function
The multimeter is switched automatically to the next higher range at
±
(1 1999 d + 1 d
→
0 1200 d), and to the next lower range at
±
(0 1 100 d -
1 d
→
10990 d).
Exception, capacitance measurement:
The multimeter is switched automatically to the next higher range at
±
(1 199 d + 1 d
→
0 120 d), and to the next lower range at
±
(0 1 10 d - 1 d
→
1099 d).
4.1.2 Manual Measuring Range Selection
Auto-ranging can be deactivated and measuring ranges can be se-
lected manually in accordance with the following table by pressing the
MAN / AUTO button.
The desired measuring range can then be selected with the or
scroll key.
The instrument is automatically returned to range selection when the
MAN / AUTO key is pressed, the rotary switch is activated or the in-
strument is switched off and back on again.
Overview: Auto-Ranging and Manual Range Selection
* Via manual measuring range selection only
Function Display
MAN /
AUTO Manual mode active:
utilized measuring range is fixed
MAN
or
Range switching sequence for:
V: 100 mV*
↔
1 V
↔
10 V
↔
100 V
↔
1000 V
Hz: 100 Hz
↔
1 kHz
↔
10 kHz
↔
100 kHz
Ω
: 100
Ω ↔
1 k
Ω ↔
10 k
Ω ↔
100 k
Ω ↔
1 M
Ω ↔
10 M
Ω ↔
40 M
Ω
A: 100
μ
A
↔
1 mA
↔
10 mA
↔
100 mA
↔
1 A
↔
10 A (16 A)
F: 10 nF
↔
100 nF
↔
1
μ
F
↔
10
μ
F
↔
100
μ
F
↔
1000
μ
F
MAN
MAN /
AUTO
Return to automatic measuring range selection —