Kewtech KT64, Инструкция по эксплуатации

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Kewtech Corporation Ltd.
Midas House, Unit
2 b
Stones Courtyard
High Street, Chesham
Buckinghamshire HP
5 IDE
www.kewtechcorp.com
40
1 . Safe Testing ... …………………………………………………… . … . …… . 1
2 . Instruments Layout .. ……………………………………………… .. …… .. 3
3 . Accessories ……………………………………………………………… .. 4
4 . Features . …………………………………………………………………… 4
5 . Specification . ……………………………………………………………… . 6
5 . 1 Measurement Specification .. ………………………………………… 6
5 . 2 Operating error .. ……………………………………………… . …… . 9
5 . 3 General Specification .. … . ………………………………………… .. 10
5 . 4 Applied standards . ………………………………………………… .. 11
5 . 5 List of Display Message . …………………………………………… 12
6 . Configuration .. …………………………………………………………… 13
7 . Continuity(resistance) tests …………………………………………… ... 14
7 . 1 Test procedure …………………………………………………… ... 14
7 . 2 2
Ω
Buzzer .... ……………………………………………………… 16
8 . Insulation tests .. ………………………………………………………… . 16
8 . 1 . 1 The nature of insulation resistance . …………………………… .. 16
8 . 1 . 2 Capacitive current .. ……………………………………………… 17
8 . 1 . 3 Conduction current ……………………………………………… . 17
8 . 1 . 4 Surface leakage current ……………………………………… .... 18
8 . 1 . 5 Total leakage current . ………………………………………… .... 18
8 . 2 Damage to voltage sensitive equipment . ……………………… .... 19
8 . 3 Preparation for measurement . …………………………………… .. 19
8 . 4 Insulation resistance measurement ... ………………………… ... … 20
9 . LOOP/PSC/PFC test ……………………………………… ... ……… ... … 22
9 . 1 Principles of Measurement of fault loop impedance and PFC … ... 22
9 . 2 Principles of measurement of line impedance and PSC ………… .. 26
9 . 3 Operating instructions for LOOP and PSC/PFC …………… ... …… 28
9 . 3 . 1 Initial Checks ………………………………………………… ...... 28
9 . 3 . 2 Measurement of LOOP and PSC/PFC …………………………… 30
10 . RCD tests .. …………………………………………………………… ..... 31
10 . 1 Principles of RCD Measurement ……………………………… ..... 31
10 . 2 Operating Instructions for RCD . …………………………… ... … . 33
10 . 2 . 1 Initial Checks ……………………………………………… ... … . 33
10 . 2 . 2 RCD Measurement ... ……………………………………… .. … .. 34
11 . Volts .. ……………………………………………………………… ... … ... 36
12 . Touch Pad ……………………………………………………………… . 36
13 . Back Light ………………………………………………………… . …… . 36
14 . General ... ………………………………………………………… ... …… . 36
15 . Battery replacement .. …………………………………………………… 37
16 . Fuse replacement ………………………………………………… ... …… 37
17 . Servicing and Calibration ………………………………………… ... …… 38
18 . Case and strap assembly .... …………………………………………… .. 39
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