Manual Benning ST 750A (page 11 of 58) (English)

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08/ 2012 11 / 58



BENNING ST 750 A

Thefollowingeldsarereleasedfortheuser:

- setting of baud rate, parity, data bits and stop bits

7.3.1 System Data

The device version and serial number are listed under <Setup> / <System Settings> /

<System Data>. The duration of the individual test procedures (standard = 5 sec.) is determined by

the test time. The safety shut-off terminates a test procedure (standard = 30 sec.).

Thecontactsurfacesbetweenconnectorshaveonlylowtransitionresistances.Todenethetransi-

tionresistance,herethe assumable resistance value is entered (standard = 1Ω). Moreover,itis

denedwhetheraprinterorabarcodescannerisconnectedtotheserialinterface.

Mains pole reversal ON: On the test socket, L and N are interchanged.

Buzzer ON: Acoustic signal in case of faults

Short-circuit test ON: Whenstartingthetest,rstcheckforshort-circuit.

Standard test procedures:

Automatic test procedures complying with DIN VDE

0701/0702/0752 are activated.

Custom test procedures:

Customized test procedures are activated. Customized test pro-

cedures are stored on the SD memory card.

Test repetition ON:

This mode allows measurements of several measuring points by

means of the test cable (probe). It can be used for measuring

RPW, RISO (protection classes II/III), Icont, Ileak and IPLeak.

The corresponding maximum and minimum value of all measure-

ments will be stored.

Database backup ON:

The device automatically creates up to 5 backups for each data-

base, e.g. Database name_backup.001.

7.3.2 Factory Settings

Select <Setup> / <System Settings> / <Factory Settings> to reset all limiting values to the factory

settings.Conrmyourentrywith<Yes> / <No>!

08/ 2010 10 / 58



BENNING ST 750

RPE data (resistance measurement of the PE conductor):

RPE VDE 701-702 = resistance for a cable length of 5 m and 1.5mm²

RPE VDE 751 = resistance for a cable length of 5 m and 1.5mm²

RPE per 7.5 m line length = additional resistance per 7.5 m line length

Line length = total length of the device supply line

Cross-section = cross-sectional area of the device supply line

RInsu data (insulation measurement):

RInsu-1 VDE 701-702 = insulating resistance of primary to PE

RInsu-1 VDE 701-702 heating elements = insulating resistance of primary to PE

RInsu-2 / RInsu-3 VDE 701-702 = insulating resistance of secondary to PE / primary to secondary

RInsu-1 VDE 701-702 Ua (SELV/PELV) = insulating resistance of primary to PE (SELV devices)

RInsu-1 VDE 751 = insulating resistance primary to PE

RInsu-2 VDE 751 = insulating resistance of secondary to PE

RInsu-3 VDE 751 = insulating resistance of primary to applied part

Testing voltage for primary to PE = testing voltage for primary to PE

Testing voltage for secondary to PE = testing voltage for secondary to PE

Testing voltage for primary to secondary = testing voltage for primary to secondary

IAL data (alternative leakage current measurement):

IPE VDE 701-702 protection class I = PE alternative leakage current

ILeak VDE 701-702 protection class II = alternative leakage current of accessible parts

ILeak VDE 751 protection class I = PE alternative leakage current

ILeak VDE 751 protection class I = alternative leakage current of accessible parts

Patient leakage current BF = alternative patient leakage current of applied part, type BF

Patient leakage current CF = alternative patient leakage current of applied part, type CF

ILeak data (leakage current measurement):

IPE VDE 701-702 protection class I = PE leakage current

ILeak VDE 701-702 protection class II = leakage current of accessible parts

ILeak VDE 751 protection class I = PE leakage current

ILeak VDE 751 protection class I = leakage current of accessible parts

Patient leakage current BF = patient leakage current of applied part, type BF

Patient leakage current CF = patient leakage current of applied part, type CF

ICont data (contact current measurement):

ICont VDE 701-702 = contact current to PE

Functional data (functional measurement):

IPE VDE 701-702 = PE leakage current (differential current measurement)

ICont VDE 701-702 = contact current to PE (differential current measurement)

IPE VDE 751 = PE leakage current (differential current measurement)

ICont VDE 751 = contact current to PE (differential current measurement)

Ua data (measurement on PELV / SELV devices):

Max. output voltage = max. output voltage for PELV / SELV devices

Cable data (cable measurement):

Line length = simple line length

Cross-section = cross-sectional area of the conductor

Conductor qty. = conductor quantity (for total length)

7.2 System Settings

Select <Setup> / <System Settings> to modify and permanently save the baud rate, parity, data

bits and stop bits e.g. for barcode scanners, RFID readers, PCs and printers.

see chapter 16 to 18

Thefollowingeldsarereleasedfortheuser:

- setting of baud rate, parity, data bits and stop bits

Thefollowingeldsarereleasedfortheuser:

- setting of baud rate, parity, data bits and stop bits

<PC>

Thefollowingeldsarereleasedfortheuser:

- setting of baud rate, parity, data bits and stop bits

Thefollowingeldsarereleasedfortheuser:

- setting of baud rate, parity, data bits and stop bits

7.2.1 System Data

The device version and serial number are listed under <Setup> / <System Settings> /

<System Data>. The duration of the individual test procedures (standard = 5 sec.) is determined by

the test time. The safety shut-off terminates a test procedure (standard = 30 sec.).

Thecontactsurfacesbetweenconnectorshaveonlylowtransitionresistances.Todenethetransi-

tionresistance,herethe assumable resistance value is entered (standard = 1Ω). Moreover,itis

denedwhetheraprinterorabarcodescannerisconnectedtotheserialinterface.

Mains pole reversal ON: On the test socket, L and N are interchanged.

7.3.3 Language Setting

In the <System Settings> menu, press the <Language Settings> button to select the desired

language. Then, press <Save>.

7.3.4 Entering a Password



AlostpasswordcanonlyberesetbytheBenningServiceteam(seechapter24,"Pro-

ductSupport")!

The expert setting function can only be accessed by means of a password. Upon delivery, the de-

viceisprovidedwiththepassword"Benning".ThepersonresponsiblefortheBENNINGST750A

ApplianceTestershalldeneanewcondentialpassword.

To dene a new password, subsequently press <Setup> / <System Settings> / <Password

Entry> / <Input>. First, the current password is requested. Then, the new password will be as-

signed, compared and saved with <OK>.

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Benning ST 750A Manual

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