Manual Benning CM11.0 (page 15 of 83) (English, German, Dutch, French, Italian, Polish, Turkish, Spanish)

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11/ 2014

BENNING CM 11



COM jack, common jack for voltage and resistance measurements as well as for continuity

testing, marked in black

V-Ω jack (positive), common jack for voltage and resistance measurements as well as for

continuity testing, marked in red

Battery compartment cover, at the rear of the housing

5. General information

5.1 General information on digital current clamp multimeter

5.1.1 The digital display

is designed as a 4 digit liquid-crystal indicator with 12 mm digit

height and decimal point. The highest value displayed is 5000.

5.1.2 The polarity indication on the digital display

works automatically. Contrary to the

measurement-wire definition, only one pole is indicated as “-”.

5.1.3 In case of a range exceedance (overflow), “0L.” is displayed.

Attention: no display or warning by complete overload.

5.1.4 The rotary switch

is intended for selecting the measuring function.

5.1.5 ZERO button

: For zero adjustment in current measure ment. Can also be used for all

ranges for differential measurement (zero setting possible for any value). Indicated by

“ZERO” in the digital display

5.1.6 The MIN/ MAX key function

automatically records and stores the highest and the

lowest measured value. By pressing the key, the following values are displayed: “MAX”

shows the highest value stored, “MIN” shows the lowest value stored and “MIN/ MAX”

shows the current measured value. Press the key for approx. 2 seconds to switch the

device back to normal operating mode.

In the „ / Ω“ measuring function, press the „MIN/ MAX“ key

to change from the

acoustic continuity test to resistance measurement.

5.1.7 HOLD key function: The measuring result can be stored by pressing the HOLD key

The “HOLD” symbol simultaneously appears on the display

. Press the key again to

switch the device back to measuring mode.

5.1.8 The yellow illumination key



activates the illumination of the display

. It is switched

off by pressing the key again or automatically after approx. 30 seconds.

5.1.9 The measuring rate of the BENNING CM 11 amounts nominally to 2 measurements per

second for the digital display.

5.1.10 The BENNING CM 11 is switched on and off with the rotary switch

. Shutdown posi-

tion “OFF”.

5.1.11 The BENNING CM 11 switches off automatically after approx. 15 minutes (APO, Auto-

Power-Off is activated, if the symbol is shown on the display

). It switches on

again, if the rotary switch

is switched on again from switch position „OFF“ or if the

yellow illumination key



is pressed. It switches on again, if the HOLD key

or another

key is actuated. Automatic switch-off can be deactivated by pressing the HOLD key and

by simultaneously switching on the BENNING CM 11 from the switching position “OFF”.

The symbol disappears from the display

5.1.12 The BENNING CM 11 is supplied by two 1.5 V batteries (IEC LR03/ AAA/ micro).

5.1.13 If the battery voltage drops below the specified operating voltage of the BENNING CM 11,

then a battery symbol appears in the display

5.1.14 The battery life depends on the measuring function used and is approximately 30 hours

to 100 hours without using the acoustic continuity test and background lighting (alkaline

battery).

5.1.15 Temperature coefficient of the measured value: 0.1 x (stated measuring accuracy)/ °C

< 18 °C or > 28 °C, related to the value for the reference temperature of 23 °C

5.1.16 Dimensions of unit (length x width x height) = 206 x 76 x 33,5 mm.

Weight of unit: 262 g (incl. batteries)

5.1.17 The safety measuring leads and measurement tips supplied are spe cially suited to the

rated voltage of the BENNING CM 11. The measuring tips can be protected by caps.

5.1.18 Widest prong opening: 23 mm

6. Ambient conditions

- The BENNING CM 11 is intended for making measurements in dry environment.

- Maximum barometric elevation for making measurements: 2000 m,

- Overvoltage category: IEC 60664/ IEC 61010 → 300 V category IV

- Contamination class: 2 (EN 61010-1),

- Protection class: IP 30 (DIN VDE 0470-1, IEC/ EN 60529)

IP 30 means: Protection against access to dangerous parts and protection against solid

impurities of a diameter > 2.5 mm, (3 - first index). No protection against water, (0 - second

index).

- Operating temperature and relative humidity:

For operating temperatures from 0 °C to 40 °C: relative air humidity lower than 80 %, non-

condensing

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Benning CM11.0 Manual

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