Chapter II
Portable digital multimeter
29
4.1.6. µA mA / 10 A positions
4.2. RANGE
key
•
In AUTO mode to switch to MANUAL mode (short press)
•
In MANUAL mode, to select the next range (short press) or return to AUTO mode (long
press)
Measurements concerned : voltages (except 500 mV range), capacitance, resistance,
currents (except 10 A range)
•
When making time measurements (frequency, duty cycle, pulse width, pulse count) : if
the range change made during previous measurements (Voltage or Current) was in
manual mode, it may be necessary to adapt this measurement range to the signal level
injected at the input. This is why the RANGE key is used to change from one range
(Voltage or Current) to the next range. The new range is then displayed for 2 seconds.
4.3. REL
key
Short press :
mode REL, the last value measured becomes the reference value
derived from subsequent measurements.
Long press :
When in REL mode, a long press displays the reference being used.
This value may be adjusted using the SEL/ON key (selection of digits
and a sign) and the RANGE key (increment the selected digit).
4.4.
Pk +/- key
The fast positive or negative peak measurement functions (
≥
1 m sec.) can be accessed by
repeatedly pressing this key in the V
DC
, mV
DC
, mA
DC
and 10 A
DC
functions.
4.5. HOLD
key
Short press :
Fixes the display on the current value.
Long press :
Accesses or quits the autostore mode. Can be accessed in the V
DC
, mV,
V
AC
positions.
Autostore
Set the probes on the point to be measured. An audio signal indicates if the measurement is
stable. When you remove the probes, a second audible signal indicates that this stable
value displayed has been stored.
SEL/ON
SEL/ON
AC current measurement
DC current measurement
SEL/ON
AC+DC current measurement
