2.
Safety notes
The instrument is built and tested in accordance with
DIN VDE 0411 part 1/ EN 61010-1
and has left the factory in perfectly safe technical condition.
To maintain this condition and ensure safe operation of the multimeter, the user
must observe the notes and warnings given in these instructions at all times.
The unit may be used only in power circuits within the over
voltage category II with a conductor for 600 V max. to earth,
or within overvoltage category III with a conductor for 300 V
against ground.
Remember that work on electrical components of all kinds is
dangerous. Even low voltages of 30 V AC and 60 V DC may be
dangerous to human life.
Before starting the multimeter up, always check it as well as all
cables and wires for signs of damage.
Should it appear that safe operation of the multimeter is no longer possible, it
should be shut down immediately and secured to prevent it being switched on
accidentally.
It may be assumed that safe operation is no longer possible:
-
if the instrument or the measuring leads show visible signs of damage, or
-
if the multimeter no longer functions, or
-
after long periods of storage under unfavourable conditions, or
-
after being subjected to rough transport.
In order to avoid danger,
do not touch the bare prod tips of the measuring leads,
insert the measurement leads in the appropriately desig
nated measuring sockets on the multimeter
3.
Scope of supply
The following items make up the standard BENNING MM 4 package:
3.1 one Multimeter,
3.2 one current transducer clamp,
3.3 one safety test lead, black (length = 1.4 m, tip Ø 4 mm) with safety
caps,
3.4 two test probes, red (tip Ø 4 mm),
3.5 one compact protection case,
3.6 two 1.5 V micro-batteries (in place in Multimeter on delivery),
3.7 the set Operating Instructions.
Note on consumable parts:
The BENNING MM 4 is supplied by two 1.5 V batteries (2 x 1,5-V-IEC LR 03).
4.
Description of unit
The BENNING MM 4 consists of two functional units:
-
the Multimeter and
-
the current transducer clamp.
See fig.1:
The operating and indicating elements shown in fig. 1 are as follows:
1 Housing
2 Sliding switch for selecting the desired functions.
-
Aus (OFF)
Measurement of alternating voltage (AC) and direct voltage (DC).
-
These functions alternate with one-another when the function button
with the blue marking is pressed. When pressed longer (2 sec.) meas-
urement of alternating current, etc. The digital display 3 indicates the
function currently in effect.
Resistance measurement, continuity test with buzzer and diode
-
test. These functions alternate with one-another when the function
button with the blue marking is pressed. The digital display 3 indicates
the function currently in effect.
3 Digital display (liquid-crystal principle). The following are indicated:
-
the measurement value with the max. indication 4200,
-
the polarity indication,
-
the decimal point,
-
the symbol for discharged battery,
-
the type of voltage selected (DC or AC voltage),
-
the measurement value held (hold function),
-
the deviation from a measurement value stored in the unit memory
09/ 2013
Front panel of unit
BENNING MM 4
10