NF wf1966, Instruction Manual

Page: 165 / 198

WF1966
7-1
Section 7 Maintenance
7.1 Outline·······················································································································7-2
„ Work contents····································································································7-2
„ Required test instruments···················································································7-2
7.2 Operation checks ·······································································································7-3
„ Preparatory checks ·····························································································7-3
„ Function checks ·································································································7-3
7.3 Performance tests·······································································································7-5
„ Performance tests ·······························································································7-5
„ Preparatory checks ·····························································································7-5
„ Test preparation ·································································································7-5
„ Frequency accuracy ···························································································7-5
„ Amplitude accuracy ···························································································7-6
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DC offset accuracy·····························································································7-6
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Amplitude vs. frequency characteristics·····························································7-7
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Sinewave distortion····························································································7-7
„ Squarewave response ·························································································7-8
„ Duty factor·········································································································7-8
„ Time difference between channels ·····································································7-9