Keysight U1242C Service Manual

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1 Calibration Procedures20 Keysight U1241C/U1242C Service GuideRecommended Test EquipmentThe test equipment recommended for the performance verification andadjustment procedures are listed below (Table 1-1). If the exact instrument is notavailable, substitute with another calibration standard of equivalent accuracy.A suggested alternative method is to use the Keysight 3458A 8½-Digit DigitalMultimeter to measure less accurate but stable sources. The output valuemeasured from the source can be entered into the instrument as the targetcalibration value.Table 1-1 Recommended test equipmentApplication Recommended equipment Recommended accuracy requirementDC voltage Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsAC true rms voltage Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsAC averaging sensevoltage Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsDC current Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsAC true rms current Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsAC average current Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsDiode Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsCapacitance Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsResistance Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsFrequency Fluke 5520A/5522A <20% of the instrument’s 1-year specificationsTemperatureFluke 5520A/5522A <20% of the instrument’s 1-year specificationsTM Electronics KMPC1MP(K-Type thermocouple extension) —