
3.5 Pre-Test Inspection
46
(4)
Polarity check results
The wiring may not be configured for uninterrupted polarity
switching. Check the wiring.
• The grounding wire may be disconnected.
• The power supply may be a floating power supply.
• The power supply may be a single-phase, 3-wire power
source.
The polarities of the power supply are reversed.
Reverse the L and N wire connections on [LINE IN].
See
"Connecting the power cord of the equipment under test" (p. 33)
Summary of Contents for ST5540
Page 2: ......
Page 6: ...Contents iv Index i ...
Page 29: ...23 2 Chapter 2 Instrument Labels and Screens Instrument Labels and Screens Chapter 2 ...
Page 80: ...4 8 Changing the Measurement Method Auto Manual 74 ...
Page 121: ...115 8 9 7 Chapter 7 Instrument System Settings Instrument System Settings Chapter 7 ...
Page 144: ...7 14 Setting the Backlight 138 ...
Page 284: ...10 14 Measurement Networks 278 ...
Page 290: ...11 4 Instrument Disposal 284 ...
Page 320: ...Appendix4 External Dimensions A30 ...
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