General Data - Benning CM 2 Bedienungsanleitung

pressed. The digital display  indicates the current function.
 Digital display (liquid-crystal type) with following indications:
- measurement reading with max. indication 3999
- polarity indication
- decimal point
- symbol for discharged battery
- type of voltage selected (AC or DC voltage)
- type of current selected (AC or DC current)
- the measurement value retained (hold function) or the automatically
retained peak measurement value (MAX function)
- the measurement function selected by indication of the extended/non-
extended measurement units of current and resistance
- selected continuity test with buzzer.
 Function button AC/DC ­ /
"", " ".
- Forselection between measurement of DC voltage/current or AC voltage/
current or
- Resistance measurement and continuity test.
 HOLD/MAX button (hold function and automatic peak-value storage)
- The first press of the button causes the currently indicated measurement
value to be held (indicated by "HOLD" in the digital display , no updating
of measurement value).
- The second press of the button leads to continuous measurement.
- Pressing the button (for 2 sec.) during switch-on initiates the peak-value
storage (MAX) function. A second press of the button does not lead to
continuous measurement.
- The first press of the button causes the peak value during the switched-on
measuring time to be stored (indicated by "MAX" in the digital display ).
For all ranges except continuity test. Switch back (continuous measure-
ment) by pressing MAX button (2 sec.).
- The function is switched off by pressing the OFF button.
 ZERO button (zero setting 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 "REL" in the digital display.
 COM socket: joint socket for voltage and resistance measurements and
continuity test, marked black
 V ­ Ω socket (positive): joint socket for voltage and resistance measure-
ments and continuity test, marked red
 Opening lever, for opening and closing the current prongs
 Prong guard, protects user from accidental contact with conductor
 Measurement prongs, for inserting and gripping the single conductor
containing AC current.
5.

General data

5.1 General data on multimeter
5.1.1 The digital display is designed as a 3 3/4 digit liquid-crystal indicator with 13
mm digit height and decimal point. The highest value displayed is 3999.
5.1.2 The polarity indication  functions automatically. Contrary to the
measurement-wire definition, only one pole is indicated as "-".
5.1.3 The range overload will be displayed with "OL" or "-OL" and sometimes
with an acoustic signal.
Attention: no display or warning by complete overload.
5.1.4 The nominal measuring rate of the digital display of the BENNING CM
2 is approx. 2 measurements per second.
5.1.5 The BENNING CM 2 switches off automatically after approx. 30 minutes.
It can only be switched on again by means of the switch. The buzzer
sounds to signal that the unit has switched off automatically.
5.1.6 Temperature coefficient of measurement value for voltage and resistance
measurements: 0.15 x (stated measurement accuracy) °C < 18 °C or >
28 °C with reference to the value at the reference temperature of 23 °C.
5.1.7 Temperature coefficient of measurement value for current measurements:
0.2 x (stated measurement accuracy) °C < 20 °C or > 26 °C with refer-
ence to the value at the reference temperature of 23 °C.
5.1.8 The BENNING CM 2 is supplied by 2 1.5 V batteries (IEC LR03/ "Micro").
5.1.9 When the battery voltage drops under the intended operating voltage of
the BENNING CM 2, a battery symbol appears in the display.
5.1.10 The service life of the battery is approx. 60 hours (alkali battery).
5.1.11 Dimensions of unit (length x width x height) = 192 x 66 x 27 mm.
Weight of unit: 205 g
5.1.12 The safety measuring leads and measurement tips supplied are spe-
cially suited to the rated voltage of the BENNING CM 2. The measuring
tips can be protected by caps.
5.1.13 Widest prong opening: 25 mm
09/ 2013
. The digital display  shows "DC", "AC",
BENNING CM 2

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