Device Description; General Information - Benning MM 1-1 Instrucciones De Servicio

3 mm, V4A (part no. 044121)
Parts subject to wear:
- The BENNING MM 1-1/ 1-2/ 1-3 is supplied by means of two integrated
1.5 V micro (AAA) batteries (IEC 6 LR 03).
- The BENNING MM 1-2/ 1-3 is equipped with a fuse for overload protection:
One quick-acting fuse, nominal current 10 A (600 V), 50 kA (part no. 748263)
- The safety measuring leads mentioned above (tested accessories, part no.
044145) comply with CAT III 1000 V and are approved for a current of 10 A.
4.

Device description

See figure 1a, 1b, 1c: Device front
The display and operating elements shown in figures 1a, 1b and 1c are desig-
nated as follows:
 Digital display, displaying measured value and range exceedance,
 Polarity indication,
 Battery indication, appears in case of discharged battery,
 MIN/ MAX key, storage of the highest and lowest measured value
(BENNING MM 1-2/ 1-3),
5 VoltSensor key, for determining AC voltage to earth,
6 RANGE key, switch-over between automatic/ manual measuring range,
 HOLD key, storage of the displayed measured value,
8 Rotary switch, for selecting the measuring function,
9 Jack (positive
J COM jack, common jack for current/ voltage/ resistance/ frequency/
temperature/ capacity measurements, continuity and diode tests,
K Jack (positive
L Suspension fixture
M LED for voltage indicator
1 ) This is what the automatic polarity indication for DC current and voltage refers to
5. General information
5.1 General information on the multimeter
5.1.1 The digital display  is a 3½-digit LC display with a font size of 16 mm
and a decimal point. The highest numerical value to be displayed is
2000.
5.1.2 The polarity indication  works automatically. Only a polarity contrary
to the jack definition is indicated with "-".
5.1.3 The range exceedance is indicated by " 0L" or "- 0L" and partly by an
acoustic warning.
Attention, no indication and warning in case of overload!
5.1.4 The „MAX/ MIN" key function  automatically determines and stores
the highest and the lowest measured value. Preselect the measuring
range by means of the „RANGE" key, if necessary. By pressing the key,
the following values are displayed:
„MAX" shows the highest stored value and „MIN" the lowest stored
value. The continuous determination of the MAX/ MIN value can be
stopped or started by pressing the „HOLD" key . By pressing the
„MAX/ MIN" key for approx. 1 second, you can switch back to normal
mode.
5.1.5 The „RANGE" key 6 is intended for shifting the manual measuring
ranges and masking the „AUTO" symbol on the display at the same
time. Select the automatic range selection by pressing the key for ap-
prox. 1 second („AUTO" is shown on the display).
5.1.6 Measured value storage „HOLD": Press the "HOLD" key  to store
the measuring result. At the same time, the display shows the "HOLD"
symbol. Press the key again to switch back to the measuring mode.
5.1.7 The nominal measuring rate of the BENNING MM 1-1/ 1-2/ 1-3 is 2
measurements per second for the digital display.
5.1.8 The BENNING MM 1-1/ 1-2/ 1-3 can be switched on or off by means of
the rotary switch 8. Switched off: position „OFF".
5.1.9 The BENNING MM 1-1/ 1-2/ 1-3 switches off automatically after ap-
prox. 10 minutes (APO, Auto-Power-Off). It is switched on again if a key
or the rotary switch is operated. A buzzer tone indicates that the device
is switched off automatically. Automatic switch-off can be deactivated
by pressing the „RANGE" key and by simultaneously switching on the
BENNING MM 1-1/ 1-2/ 1-3 from the switching position „OFF".
5.1.10 Temperature coefficient of the measured value: 0.15 x (stated meas-
uring accuracy)/ °C < 18 °C or > 28 °C, related to the value for the
reference temperature of 23 °C.
5.1.11 The BENNING MM 1-1/ 1-2/ 1-3 is supplied by means of two 1.5 V
micro (AAA) batteries (IEC 6 LR 03).
03/ 2019
1
), for V, Ω, , Hz,
1
), for A range, for currents up to 10 A (BENNING MM 1-2/ 1-3),
BENNING MM 1-1/ 1-2/ 1-3

14