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份说明书
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Testboy
TV 455VDE-tester
用户手册
Testboy TV 455VDE-tester Testboy TV 455 用户手册
产品代码
Testboy TV 455
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TESTBOY TV 450
Table of contents
3
Table of contents
1
Start-up guide .........................................................................................................4
1.1
Safety and operational considerations ..............................................................4
1.2
Instrument description - Front and connector panel ..........................................5
1.3
Instrument description - Meaning of symbols ....................................................5
1.4
Function selector switch and instrument display ...............................................7
1.5
Battery handling ................................................................................................7
1.6
Maintenance......................................................................................................8
1.6.1
Replacing fuses..........................................................................................8
1.7
Warranty & Repairs ...........................................................................................9
2
Quick-test guide ...................................................................................................10
2.1
Null the leads...................................................................................................10
2.2
Measurements.................................................................................................11
2.2.1
Online Voltage and frequency / Phase sequence - AC Voltage
measurement and frequency measurements, phase sequence ...............11
2.2.2
Insulation resistance - For testing the MΩ value of the insulation between
wires .........................................................................................................13
2.2.3
Low Ω for testing Resistance of earth conductors and equipotential
bonding.....................................................................................................15
2.2.4
RCD testing - 3 functions for testing RCDs. .............................................17
2.2.5
Loop - Fault loop impedance....................................................................19
2.2.6
Line impedance - (phase-neutral, phase-phase)......................................21
2.2.7
Earthing resistance (model TESTBOY TV 450 (Type B)).........................22
3
Step by step PC SW installation (model TESTBOY TV 450 (Type B)) .........23
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