Device Description; General Information - Benning CM 9-1 Notice D'emploi

approved in accordance with CAT III 1000 V/ CAT IV 600 V and for a current up 10 A.
4.

Device description

See figure 1: Appliance front face
The display and operating elements shown in figure 1 are designated as follows:
1 Measuring clamp, for clamping live conductors,
2 Prong guard, protects user from accidental contact with conductor
key (yellow), display illumination
3
4 Opening lever, for opening and closing the current prongs
5 Rotary switch, for selecting the measurement function
6 ZERO/LPF key, for zero balance or differential measuring, enabling the low-pass filter (LPF)
7 PEAK key, peak value storage
8 HOLD/RANGE button, storage of the indicated measured value, switch-over to manual
measuring range selection (V and A).
9 Digital display, for displaying the measured value and range exceedance
J COM jack, common jack for voltage and resistance measurements as well as for continuity
testing, marked in black
K V-Ω jack (positive), common jack for voltage and resistance measurements as well as for
continuity testing, marked in red
L 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 9 is designed as a 4 digit liquid-crystal indicator with 12 mm digit
height with decimal point. The highest value displayed is 6000.
5.1.2 The polarity indication on the digital display 9 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 5 is intended for selecting the measuring function. The selection of
the measuring range is automatic.
5.1.5 The ZERO/LPF key 6 has two functions:
- ZERO function:
For zero adjustment in current measurement. Can also be used for all ranges for
differential measurement (zero setting possible for any value). Indicated by "ZERO"
in the digital display 9 .
- LPF function (low-pass filter):
Press the ZERO button 6 for 2 seconds to enable a low-pass filter (40 Hz to 70 Hz)
in the A and mA ranges. An active filter is visualized by the "LPF" symbol on the LC
display 9 . The low-pass filter (LPF) suppresses high-frequency interfering signals
generated by electrical devices/installations with frequency converters. The limiting
frequency is approx. 180 Hz.
Note:
When the low-pass filter (LPF) is disabled, the frequency characteristics of the
BENNING CM 9-1 meet the requirements of EN 61557-16 (VDE 0413-16) and can be
used to measure protective conductor currents and differential currents of electrical
devices.
5.1.6 The PEAK key 7 has two functions:
- Press this key in the measuring modes V and A to measure and store the peak
value. Briefly press the key again to return to the normal mode.
- In the
measurement to the acoustic continuity test.
5.1.7 The HOLD/RANGE key 8 has two functions:
- The measuring result can be stored by pressing the HOLD key 8 . The "HOLD"
symbol simultaneously appears on the display 9 . Press the key again to switch the
device back to measuring mode.
- Press and hold the key for 2 seconds to leave the automatic mea suring range
selection and to manually switch to the next higher measuring range (V and A).
As soon as another measuring function is selected via the rotary switch 5 , the
automatic measuring range selection is active again.
5.1.8 The yellow illumination key 3 activates the illumination of the display 9 . 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 9-1 amounts nominally to 2 measurements per
second for the digital display.
5.1.10 The BENNING CM 9-1 is switched on and off with the rotary switch 5 . Shutdown
position "OFF".
5.1.11 The BENNING CM 9-1 switches off automatically after approx. 30 minutes (APO, Auto-
10/ 2020
measuring mode, press the PEAK key 7 to change from resistance
BENNING CM 9-1
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