25
Subject to change without notice
C o n t r o l - E l e m e n t s
corresponds to the input value less the value
present on the display during initial action on the
HOLD/OFFSET key
. Activate this function by
means of a second press on the HOLD/OFFSET
key.
V/
Ω
/T°/dB/
(safety terminal for 4 mm banana plugs)
Connection (high potential) for measurements of
voltages, resistances, temperatures and diode
junctions in conjunction with the COM input
(safety terminal).
For safety reasons, the voltage across
this terminal compared to the case
(guard wire, ground) shall be 600 V
DC
at
most.
HOLD/OFFSET (pushbutton)
Pushbutton for validating the HOLD or OFFSET
functions. Pressing the key the first time will
freeze the front panel display. The HOLD indicator
then comes on. The AUTO, AC-DC, BEEP,
11
and
12
keys are inoperative.
A second press gives access to the relative mode.
The value memorized by the HOLD function is then
subtracted from each measurement before being
displayed. The OFFSET indicator
comes on.
A third press will freeze the relative value. The
HOLD
and OFFSET
indicators come on. A
fourth press will delete the HOLD and OFFSET
mode.
11
(pushbutton)
Pushbutton for changing to lower range. On each
press, the new range is displayed fleetingly on
the display in code form (L1 for lowest range, L2
for second range, etc.).
12
(pushbutton)
Pushbutton for changing to higher range. Each
time pressed, the new range will be displayed
fleetingly on the display in code form (L1 for
lowest range, L2 for second range, etc.).
13
AUTO (LED)
Indicator signalling that the multimeter is in
AUTOMATIC mode. In this mode, action on keys
11
and
12
is inoperative.
14
AUTO (pushbutton)
Pushbutton for switching the AUTO range
selection to the MANUAL range selection and vice
versa.
In MANUAL mode, the choice of range is left to
user initiative using the keys
11
and
12
.
15
Unit display zone (LED)
This zone contains a display of the measurement
units. It also identifies the function selected by
pressing the
17
or
18
key.
16
AC-DC (pushbutton)
This key is used for selecting the measurement
mode (DC, rms AC or rms AC + DC).
Indicators below indicate the measurement
mode:
DC:
measurement of DC voltages
AC:
measurement of RMS AC voltages
DC + AC:
measurement of RMS AC+DC voltages.
17
(pushbutton)
Pushbutton for selecting the next function.
18
(pushbutton)
Pushbutton for selecting the previous function.
On startup, the unit switches automatically to the
DC voltmeter, MANUAL mode function and 600
voltrange.
