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Maximum power dissipation≤ 2W

DC: 8 × 1.5V (AA, R6) Battery

AC: 220V/50Hz

6. Dimensions and weight

Dimensions: 220× 200 × 105mm

Weight: ≤ 1.4kg

III. Operation Instructions

1. Grounding resistance measurement (Fig. 1)

As Fig.1, the straight-line distance between ground

electrode E (C2, P2) and current probe C1is 40 meters. Put

potential probe P1 on the center of E, C, so that E, P, C is 20

meters away from each other and make sure potential probe P1

grounded properly.

Connect ground resistance terminals E (C2, P2), P1, C1 to

Содержание HT2571B

Страница 1: ...can find the changes in the appendix Sorry for the inconvenience If you have further questions welcome to contact with our service department The input output terminals and the test column may bring...

Страница 2: ...and prevent the product or other relevant subassembly to damage In order to avoid possible danger this product can only be used within the prescribed scope Only qualified technician can carry out main...

Страница 3: ...d the instruction manual to acquire information about the ratings Do Not Operate without Covers Do not operate this product when covers or panels removed Use Proper Fuse Only use the fuse with type an...

Страница 4: ...Security Terms Warning indicates that death or severe personal injury may result if proper precautions are not taken Caution indicates that property damage may result if proper precautions are not tak...

Страница 5: ...5 Contents I Introduction 6 II Technical Specifications 8 III Operation Instructions 9 IV Notes 11 V Packing list 13...

Страница 6: ...into AC low frequency constant current through the auxiliary grounding electrode C and the circuit composited by the measured object E Then on measured object generate AC voltage drop that will be se...

Страница 7: ...DC current into AC low frequency constant current for the measurement 3 Auxiliary grounding resistance can change in the range of 0 2K RC 0 40K RP that will not affect measurement results 4 Without m...

Страница 8: ...AC 0 19 99V 3 Measurement accuracy and resolution Accuracy 0 0 2 3 1d 0 2 1999 9 1 5 1d 1 19 99V 3 1d Resolution 0 01 0 1 1 0 01V 4 Measurement errors caused by auxiliary grounding resistance and gro...

Страница 9: ...ructions 1 Grounding resistance measurement Fig 1 As Fig 1 the straight line distance between ground electrode E C2 P2 and current probe C1is 40 meters Put potential probe P1 on the center of E C so t...

Страница 10: ...t four probes into the measured soil along a straight line make sure the insertion depth is 20cm and spacing of each probes is 20cm connect terminals C1 P1 P2 C2 to the four probes with wire If the me...

Страница 11: ...g 1 pull out the plug C1 insert the plug between E P1 and start the ground voltage gear EV the indicator lights The reading on LCD is AC ground voltage value between E P1 5 Completed measurement turno...

Страница 12: ...esistance of large grounding grid the wiring method is different from the general method detailed wiring please refer the measurement requirement of current meter or voltmeter 4 When measuring groundi...

Страница 13: ...will not be used for a long time all batteries should be removed to prevent the instrument from corrosion V Packing list No Name Qty 1 Instrument host 1 2 Test wire 1 5m 2 3 bobbin bracket 20m black w...

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