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Benning ST 710 Manual

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02/ 2011
BENNING ST 710
13
- 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gure1: Appliancefrontface
Seegure2: Topsideofthedevice
ThedisplayandoperatorcontrolelementsspeciedinFig.1and2aredesignatedasfollows:
1
test socket, for connecting the device to be tested,
2
-key, testing of devices of protection class I (devices with protective conductor and ac-
cessible conductive parts which are connected to the protective conductor),
3
-symbol key, testing of devices of protection class II (shock-proof devices without pro-
tective conductor and with accessible conductive parts) and testing of devices of protection
class III (safety extra-low voltage),
4
-symbol key, testing of lines, multiple distributors and device connecting cables with IEC
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veries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specied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specied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 Resolution Measuring accuracy
0.05Ω-20Ω 0.01Ω 5 % ± 2 digits
Testing current:
>200mA(2Ω)
open-circuit voltage:
> 4 V nominal
7.2 Insulating resistance
Measuring range Resolution Measuring accuracy
0.5MΩ-20MΩ 0.01MΩ 5 % ± 2 digits
0.1MΩ-0.49MΩ 0.01MΩ 10 % ± 2 digits
Testing voltage: 500 V
DC
@ 1 mA nominal, + 20 %, - 0 %
Testing current:
>1mAat500kΩ,<2mAat2kΩ
… 18 …


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