Functional description
14 100.000-count Graphical Multimeters
Functional description (cont'd)
Adjustment of
back-lighting
Selection of the back-lighting deactivation time to limit the multimeter's energy
consumption.
6 times are possible: 10 s, 30 s, 1 min, 2 min, 10 min or infinite (no deactivation).
By default, the back-lighting deactivation time is 2 min.
Start-up
configuration
(Config)
•
In user mode, the instrument restarts with the user's personal configuration
and the main function selected when it was switched off.
•
In basic mode, by default, the multimeter restarts with its elementary
configuration (see page 15) and the Volt (AC+DC) function.
Restart configuration indicated without leads connected. If the leads
are connected, they will be taken into account for function selection.
Specific
configurations
of the instrument
Using the Measure menu, you can adapt the instrument's configuration to the
measurement environment:
•
Opening of the Configuration menu
with the key.
•
Selection of the Measure menu using
the
keys and then the key.
Filter
Activation of a filter to improve frequency rejection for measurements in low
VDC mode.
By default, filter active.
Impedance
Choice of the required input impedance on the 100 and 1000 mV (1 V) ranges.
- 100 mV
DC
and
AC+DC
range: 2 possible impedances: 1 GΩ or 10 MΩ
- 1000 mV mV
DC
range: 2 possible impedances: 1 GΩ or 20 MΩ
By default, 100 mV range = 10 M
Ω
ΩΩ
Ω
, 1000 mV range = 20 M
Ω
ΩΩ
Ω
dBm REF
MTX 3283
Adjustment of the reference resistance value (dBm REF) between 1 Ω and
10,000 Ω, for measurements in dBm on V
AC
or V
AC
+V
DC
voltages:
•
Selection of the digit to be modified using the key.
•
Modification of the value using the keys
.
•
Validation of the reference resistance in dBm and exit from the menu using the
key.
Default value 600
Ω
ΩΩ
Ω
.
Reminder: A 0 dBm measurement with a 600
Ω
reference resistance is given
on a voltage of 0.7746
V
AC
.
Set dBm ref
Measure
Impedance 1G
W REF
Filter activation
Filter yes
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