HP Extech 380976 manual 380976 V3.1

Page 9

NOTE

Once a phase is selected as COM, users can not change this selection in the subsequent measurement. For example, if S (or L2) phase is selected, S (or L2) phase is always connected to the COM during measurement of WRS (or WL1L2) and WTS (or WL3L2) in 3φ 3W unbalanced power.

NOTE

1.The "+" sign printed on Panel must face the power source for accurate measurement.

2.If the device under test is a switching power supply, the meter KW, PF and θ reading maybe incorrect.

NOTE

For 3φ3W unbalanced power measurements, WRS or WTS could be negative.

Ensure that all connections are correct before accepting a reading as valid.

380976

V3.1

6/08

Image 9

Contents 1Φ/3Φ 1000 Amp True RMS Power Clamp-On Model Introduction Table of ContentsWarranty Safety InformationWhen servicing, use only specified replacement parts Meter Description Measurements AC + DC Voltage MeasurementsAC Current Measurements 380976 V3.1 380976 V3.1 KVA 3φ 3W KW+PF Power Factor, KW+KVAR, KVA+θPhase Angle or A+V380976 V3.1 380976 V3.1 380976 V3.1 380976 V3.1 Resistance and Audible Continuity Measurements KVA 3φ 4WCapacitance Measurements Temperature MeasurementsDiode Tests AC and DC µA MeasurementsMeter Control Keys Hold MX/MN KeyRange Key Automatic Sleep Mode and Battery Replacement Auto Sleep DisableBattery Replacement Specifications AC Current 50Hz to 400Hz True RMS Measurement SpecificationsΜA True RMS AC+DC AC Voltage 50Hz to 400Hz True RMS1Φ/3Φ True Power PF 0.5 or 60o 50/60Hz Temperature K-Type thermocouple1Φ/3Φ Horse Power HP PF 0.5 or 60o 50/60Hz 1Φ/3Φ Reactive Power Kvar PF 0.5 or 60o 50/60Hz1Φ/3Φ Apparent Power KVA Calibration and Repair ServicesPhase Angle 50/60Hz Frequency