Benning ST 710 Bedienungsanleitung Seite 18

- 32 A CEE coupling - CEE plug (044128)
- Test certificate forms for "Testing of electrical devices" are available for download free of
charge at www.benning.de
4. Unit description
See figure 1: Appliance front face
See figure 2: Top side of the device
The display and operator control elements specified in Fig. 1 and 2 are designated as follows:
1 test socket, for connecting the device to be tested,
-key, testing of devices of protection class I (devices with protective conductor and ac-
2
cessible conductive parts which are connected to the protective conductor),
-symbol key, testing of devices of protection class II (shock-proof devices without pro-
3
tective conductor and with accessible conductive parts) and testing of devices of protection
class III (safety extra-low voltage),
-symbol key, testing of lines, multiple distributors and device connecting cables with IEC
4
connector
5 LC display, indicates the test progress and individual measuring results,
6 4 mm test socket, for connecting the test lead with alligator clip
7 IEC connector, for connecting the IEC power cord
5. General information
The BENNING ST 710 is intended for electrical safety tests according to DIN VDE 0701-0702,
BGV A3, ÖVE/ ÖNORM E8701 and NEN 3140.
Automatically, the BENNING ST 710 verifies the type of the connected test object and informs
the user in case of incorrect selection of the testing procedure [ 2 ... 4 ]: preset limiting values and
measuring results with "pass/ fail" information make it easier to evaluate the test.
6. Ambient conditions
- The BENNING ST 710 is intended for making measurements in dry environment.
- Maximum barometric elevation for making measurements: 2000 m,
- Over voltage category/ setting category: IEC 61010-1 → 300 V category II,
- Contamination class: 2,
- Protection class: IP 40 (DIN VDE 0470-1 IEC/ EN 60529)
IP 40 means: Protection against access to dangerous parts and protection against solid
impurities of a diameter > 1 mm, (4 - first index). No protection against water, (0 - second
index).
- EMC: EN 61326-1
- Operating temperatures 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 %
- Storage temperature: The BENNING ST 710 can be stored at any temperature within the
range of - 25 °C to + 65 °C (relative humidity from 0 to 80 %). The battery should be removed
from the instrument for storage.
7. Electrical specifications
Note: The measuring accuracy is specified as the sum of
- a relative fraction of the measured value and
- a number of digits (i.e. counting steps of the last digit).
This specified measuring accuracy is valid for temperatures within the range of 18 °C to 28 °C
and relative humidity lower than 80 %.
7.1 Protective conductor resistance:
Measuring range
0.05 Ω - 20 Ω
Testing current:
open-circuit voltage:
7.2 Insulating resistance
Measuring range
0.5 MΩ - 20 MΩ
0.1 MΩ - 0.49 MΩ
Testing voltage:
Testing current:
02/ 2011
Resolution
0.01 Ω
> 200 mA (2 Ω)
Resolution
0.01 MΩ
0.01 MΩ
500 V @ 1 mA nominal, + 20 %, - 0 %
DC
> 1 mA at 500 kΩ, < 2 mA at 2 kΩ
BENNING ST 710
Measuring accuracy
5 % ± 2 digits
> 4 V nominal
Measuring accuracy
5 % ± 2 digits
10 % ± 2 digits
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