BENNING MM 1-3 044083 - Инструкция по эксплуатации - Страница 23

14



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

1

), for 

V, Ω, 

, Hz,

J

  COM jack

, common jack for current/ voltage/ resistance/ frequency/ 

temperature/ capacity measurements, continuity and diode tests,

K

Jack 

(positive

1

), for A range, for currents up to 10 A (BENNING MM 1-2/ 1-3),

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

, 

A

uto-

P

ower-

O

ff). 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 

BENNING MM 1-1/ 1-2/ 1-3