09/ 2016
BENNING CC 3
9
90 °-angled.
5. General information
5.1 General details on the current clamp adapter
5.1.1 The sliding switch
is intended to select the measuring ranges of 40 A
or 300 A AC/ DC.
5.1.2 The „ZERO“ key (null balance key)
is intended to carry out a null bal-
ance for direct current (DC) measurements. With the measuring clamp
being closed, press and hold the „ZERO“ key
until a measured
value of approximately 0 V is displayed on the multimeter.
5.1.3 The BENNING CC 3 switches off automatically after approx. 30 min-
utes (
APO
,
A
uto-
P
ower-
O
ff). It can be powered on again by pushing
switch
. The automatic switch off is signaled by means of the illumina-
tion of the red LED (low battery indicaton)
6
.
5.1.4 The BENNING CC 3 is powered by one 9-V block battery (IEC 6 LR 61).
5.1.5 If the battery voltage falls below the specified operating voltage of the
BENNING CC 3, the red LED (battery indication)
6
starts lighting.
5.1.6 The life span of a battery is approx. 66 hours (alkali battery).
5.1.7 Sensor type: Hall sensor for direct and alternating current.
5.1.8 Temperature coefficient of the measured value:
0.2 x (stated measuring precision)/ °C < 18 °C or > 28 °C, related to the
value for the reference temperature of 23° C.
5.1.9 Largest opening of pliers: 25 mm,
5.1.10 Maximum conductor diameter: 22 mm,
5.1.11 Appliance dimensions: (L x W x H) = 185 x 66 x 40 mm
5.1.12 Appliance weight: 270 g
6. Environment conditions
- The BENNING CC 3 is intended for making measurements in dry environ-
ment.
- Maximum barometric elevation for making measurements: 2000 m,
- Overvoltage category IEC 60664/ IEC 61010, 600 V category III,
- Contamination degree 2 according to 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 protec-
tion against water, (0 - second index).
- Operating temperature and relative humidity:
For operating temperatures from 0 °C to 30 °C: relative humidity less than
80 %
For operating temperatures from 31 °C to 40 °C: relative humidity less than
75 %
For operating temperature from 41 °C to 50 °C: relative humidity less than
45 %
- Storage temperature: The BENNING CC 3 can be stored at any tempera-
ture in the range from - 20 °C to + 60 °C.
7. Electrical specifications
Note: The measuring precision is specified as the sum of
- a relative fraction of the measured value and
- a current value in A.
The measurement precision applies at a temperature of 23 °C ± 5 °C and a
relative humidity less than 75 %.
7.1 Direct current ranges
Output voltage: 10 mV
DC
/ A
DC
in the 40 A measuring range
1
mV
DC
/ A
DC
in the 300 A measuring range
Measurement
range
Measured value
Output
Measurement precision*
40 A
0 . . . 40 A
0 . . . 400 mV
± (2.0 % + 0.2 A)
300 A
40 . . . 200 A
40 . . . 200 mV
± (2.0 % + 1 A)
200 . . . 300 A
200 . . . 300 mV
± (2.9 % + 2 A)
*
The measuring accuracy is specified for a sinusoidal curve. The stated pre-
cision is specified for conductors that are centrally clamped by the measur-
ing clamp
(see Fig. 2). For conductors that are not centrally clamped, an
additional error of 1 % of the display value needs to be taken into account.
Load impedance: min. 10 MΩ (input resistance of the multimeter)
7.2 Alternating current ranges
Output voltage: 10 mV
AC
/ A
AC
in the 40 A measuring range
1
mV
AC
/ A
AC
in the 300 A measuring range
