BENNING MM 4 044073 - Инструкция по эксплуатации - Страница 17

05/ 2019

BENNING MM 4

11



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 

(REL 

∆

),

  -   the selected measuring range through display of extended / non-

extended measuring units of voltage, current and resistance,

-   the selected continuity test with buzzer,

-   the selected diode test.

4

Blue function button

: the following symbols appear for this in the digital 

display 

3

: “DC”; “AC”; “Ω”, “V”;  „

“ or „

“

-   Selection between DC-voltage and AC-voltage measurement or

-   resistance measurement, continuity and diode test,

-   or when button pressed for 2 sec. (in sliding-switch position ACV / DCV) 

alternating current (Amp).

  -  

Measurement of temperature (°C, °F), relative humidity (%), capacity 

(µF), carbon monoxide (ppm), wind speed (m/s), illumination intensity 

(k lux) are not possible with the  BENNING MM 4.

-   Repeat press for 2 sec. returns to voltage measurement

5

HOLD / REL button

 (hold function)

-   First press of button causes indicated measuring value to be held (indi-

cated by  ‘Hold’ in digital display 

3

, no updating of measured value),

-   repeat press of button causes return to continuous measurement function.

-   Relative-value function becomes effective when button pressed for 2 

sec. The value currently being measured is stored and the difference 

(offset) between the next higher or lower value is displayed. A new 

reference value can be stored by pressing the button again.  Return to 

normal mode by pressing button longer (2 sec).

6

RANGE button

 for manual selection of voltage, current and resistance-

measuring ranges (‘RANGE’ appears in the digital display)

-   The measuring ranges change when button pressed briefly,

-   Automatic range selection is set by pressing button longer (i.e. longer 

than 2 sec.).

7

COM socket

, joint socket for voltage and resistance measurements, conti-

nuity and diode testing, colour black.

8

V-Ω  socket

 (positive),  joint socket for voltage and resistance measure-

ments, continuity and diode testing, colour red. 

9

Opening lever

 for opening and closing current clamp.  

J

Current­clamp grip

 to guard against accidental conductor contact

K

Jaws

 for gripping the single-wire live AC conductor.

5.  General data

5.1  General data on  BENNING MM 4

5.1.1   The digital display is designed as a 3¾ digit liquid-crystal indicator with 

11 mm digit height and decimal point. The highest value displayed is 

4200.

5.1.2   The polarity indication 

3

 functions automatically. Only a polarity con-

trary to the socket definition is indicated, as “-”.

5.1.3   When the range is exceeded, this is indicated by “OL” or “-OL”.

5.1.4   The nominal measuring rate of the digital display of the  BENNING MM 4 

is approx. 2 measurements per second.

5.1.5   The  BENNING MM 4 switches off automatically after approx. 30 min.  It 

goes on again when the RANGE button 

6

 is pressed. A buzzer sounds 

to indicate automatic switch off.

5.1.6   Temperature coefficient of measurement value: 0.15 x (stated meas-

urement accuracy)/ °C < 18 °C or > 28 °C, with reference to the value 

at a temperature of 23 °C.

5.1.7   The  BENNING MM 4 is supplied by 2 x 1.5 V batteries (IEC-LRO3 / 

‘Micro’).

5.1.8   When the battery voltage drops beneath the specified operating voltage 

of the  BENNING MM 4, the battery symbol appears in the display.

5.1.9   The life span of the batteries is approx. 800 hours (alkali battery).

5.1.10   Dimensions:

 (L x W x H) = 145 x 52 x 34 mm Multimeter without current transducer, 

 (L x W x H) = 225 x 77 x 35 mm Multimeter with current transducer

  Weight:

100 g without current transducer

230 g with current transducer