Operation Manual

08/ 2012 49 / 58
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BENNING ST 750 A
Measurement acc. to measuring spec. / limiting value Tester acc. to regulation
Measurement of the protective conductor resistance
(RPE, test socket)
DIN VDE 0701-702
DIN VDE 0751-1
(DIN VDE 0701, Part 260)
Protection class I (up to a length of 5 m*)
0701-0702 0.3Ω
0751 0.3Ω
* +0.1 Ohm per further 7.5 m
 uptomax.1Ω
0701T240 1Ω
0751withapplianceplug 0.1Ω
or 0.2Ω
DIN EN 61010-1
(VDE 0411-T1)
DIN EN 61557-1
(VDE 0413 T1)
DIN EN 61557-4
(VDE 0413 T4)
DIN VDE 0404-1
DIN VDE 0404-2
DIN VDE 0404-3
Testingcurrent:  ≥200mADC(–0%/+25%)to(0…5)Ohm
of both polarities!
Measuring voltage: U
0
approx. 12 V DC
manual / automatic pole reversal!
Testing current: 10A AC (–0% / +30% at 0 Ohm)
     at230VAC(50…60)Hz
Measuring voltage: U
0
approx. 17 V AC
Measuringrange: 0.100...30.000Ω
Resolution:   0.001Ω
Accuracy: at 230 V AC ±10% + 5 digits
Measurement acc. to measuring spec. / limiting value Tester acc. to regulation
Measurement of the insulating resistance
(RInsu, test socket)
DIN VDE 0701-0702
Protection class I
withheatingdevices 0.3MΩ
ProtectionclassI 1.0MΩ
ProtectionclassII 2.0MΩ
ProtectionclassIII 0.25MΩ
DIN VDE 0751-1
ProtectionclassI 2.0MΩ
ProtectionclassII 7.0MΩ
AppliedpartCF 70.0MΩ
(measured value, factory setting 500 V)
DIN EN 61010-1
(VDE 0411-T1)
DIN EN 61557-1
(VDE 0413 T1)
DIN EN 61557-2
(VDE 0413 T2)
DIN VDE 0404-1
DIN VDE 0404-2
DIN VDE 0404-3
Testing voltage: 50 ... 500 V DC (-0% / +25%)
Testingcurrent:  >1mAwith500kΩ@500VDC
     <15mAwith0Ω@500VDC
Measuringrange: 0.10...100.00MΩ
Resolution:   0.1MΩ
Accuracy: at 230 V AC ±10%
     ±15%ofthemeasuredvalueat0...100MΩ