Bedienungsanleitung Benning ST 725 (Seite 36 von 71) (Deutsch, Englisch, Französisch)

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BENNING ST 725

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8. Measuring with the BENNING ST 725

8.1 Preparations for measuring

OperateandstoretheBENNINGST725onlyatthespeciedstorageandoperatingtempera-

tures conditions. Do not permanently expose the device to sunlight.

- Check rated voltage and rated current details specified on the safety measuring leads.

- Strong sources of interference in the vicinity of the BENNING ST 725 might lead to unstable

readings and measuring errors.



Before starting the BENNING ST 725, always check the device, the lines and the

test object for damages.



Please make sure not to exceed the maximum breaking capacity/ lamp load of

the test socket of the BENNING ST 725 (see chapters 7.4 and 7.5). Exceeding the

values might cause tripping of the fuses and damaging of the BENNING ST 725.

Damages due to overload are excluded from possible warranty claims.



The plug of the mains connection cable can be connected with the socket K of

the BENNING ST 725 in one position only (see white mark). Do not exert force

to the plug of the mains connection cable in order to avoid damaging of the

BENNING ST 725.

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Before starting the test, switch the test object on (mains switch ON).

If the BENNING ST 725 is connected to the mains voltage, the test object will be

supplied with mains voltage during the protective conductor/ contact current

measurement. During measurement, check the test object for proper function-

ing!



At the beginning of the test it has to be checked whether the selected testing

procedure complies with the protection class of the connected test object.

8.2 Switching the BENNING ST 725 ON/ OFF

- Press and hold the keys

and

for approx. 3 seconds to switch the BENNING ST 725 on.

Acoustic signals confirm that the device is switched on. Press the keys again to switch the

device off.

- After approx. 2 minutes, the BENNING ST 725 switches off automatically (APO, Auto

Power-Off). It switches on again when the keys

and

are pressed. An acoustic signal

indicates that the device has switched off automatically.

8.3 Testing the mains voltage on external shock-proof socket

- Connect the mains connection cable to the mains connection socket K of the

BENNING ST 725.

- Connect the shock-proof plug to the shock-proof socket to be tested. With the mains voltage

being applied, the voltage measurement will start automatically.

- Depending on the external conductor position (right or left) of the shock-proof socket, the

voltage potentials between the connecting terminals L, N and PE will be shown on the

display for approx. 3 seconds.

- If the voltage potentials are within the following limiting values, there will be a next to the

"LN", "LE" and "NE" symbols.

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