General Information - Benning CM 9-2 Notice D'emploi

8 ON/OFF key, switches the BENNING CM 9-2 on/off (2 s), enables the dis-
play illumination,
9 HOLD/MAX-MIN button, storage of the indicated measured value, storage
of the lowest or highest measured values (2 s)
J RANGE button, switch-over to automatic/ manual measuring range selec-
tion
K Battery compartment cover, at the rear of the housing
5.

General information

5.1 General information on digital current clamp meter
5.1.1 The digital display 6 is designed as a 4 digit liquid-crystal indicator with
14 mm digit height with decimal point. The highest value displayed is
6000.
5.1.2 In case of a range exceedance (overflow), "0L." is displayed.
Attention: no display or warning by complete overload.
5.1.3 The BENNING CM 9-2 can be switched on/off by pressing (2 s) the key
8 . After switching on, the remaining battery capacity is briefly displayed
in %. Press the key 8 again to switch the display illumination on or off.
5.1.4 The Bluetooth
- Enables the Bluetooth
on the LC display 6 at the same time.
- P ress the key for approx. 2 seconds to enable the measuring point
illumination.
5.1.5 The LPF key (low-pass filter) 5 is used for enabling various filters to
suppress high-frequency interfering signals:
Low-pass filter (50 Hz to 60 Hz):
Press the key once to enable a low-pass filter (50 Hz to 60 Hz) with
The low-pass filter (50 Hz to 60 Hz)) suppresses high-frequency in-
terfering signals generated by electrical devices/installations with fre-
quency converters. The limiting frequency is approx. 200 Hz.
Device filter (1 kHz):
Press the key again to enable a device filter (1 kHz) with
shown on the LC display 6 at the same time. The frequency charac-
teristics 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. The limiting frequency is approx. 1 kHz.
5.1.6 The HOLD key 9 has two functions:
- T he measuring result can be stored by pressing the HOLD key
9 . The "HOLD" symbol simultaneously appears on the display 6 .
Press the key again to switch the device back to measuring mode.
- P ressing the key for approx. 2 seconds enables the MAX/MIN func-
tion and automatically stores the highest and the lowest measured
value. By pressing the key again, the following values are dis-
played: "MAX MIN" displays the current measured value, "MAX"
displays the highest value stored and "MIN" displays the lowest
value stored. Press the key for approx. 2 seconds to switch back to
normal operating mode.
5.1.7 The RANGE key J can be used to change over to the individual man-
ual measuring ranges (6 mA, 60 mA, 600 mA, 6 A, 60 A) and to hide
"AUTO" on the display 6 at the same time. Press the key for approx.
2 seconds to select the automatic range selection ("AUTO" is shown on
the display).
5.1.8 The measuring rate of the BENNING CM 9-2 amounts nominally to 5
measurements per second for the digital display.
5.1.9 The BENNING CM 9-2 switches off automatically after approx. 20
minutes (APO, Auto-Power-Off is activated, if the symbol
shown on the display 6 ). It switches on again when the ON/OFF key
8 is pressed for 2 seconds. Automatic switch-off can be deactivated
by pressing the LPF key 5 and by simultaneously switching on the
B ENNING CM 9-2. The symbol
5.1.10 The BENNING CM 9-2 is supplied by two 1.5 V batteries (IEC LR6/ AA/
mignon).
5.1.11 If the battery voltage drops below the specified operating voltage of the
BENNING CM 9-2, then a battery symbol
6 .
5.1.12 The battery life is approximately 60 hours without using the measuring
point/display illumination and the Bluetooth
5.1.13 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
5.1.14 Dimensions of unit (length x width x height) = 230 x 100 x 46 mm.
10/ 2019
®
key 4 has two functions:
being shown on the LC display 6 at the same time.
BENNING CM 9-2
®
interface with the " " symbol being shown
disappears from the display 6 .
appears in the display
®
function. (alkaline battery).
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being
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