HP Extech 380976 manual 380976 V3.1

Page 10

4-Wire KW, HP, KVA, KVAR, Power Factor & Phase Angle Measurement

1.First, measure WR(L1) (refer to the diagram below).

a.Set the rotary switch to the “ V ” position.

b.Press and hold the “RANGE” key while setting the rotary switch to the “KW/KVA” position, the 3φ4W and WL1 symbols should appear.

c.Insert the test leads into the input jacks.

d.Connect the neutral line to the COM (black) terminal.

e.Connect the test probe of the V (red) terminal to the first phase (e.g. R or L1).

f.Clamp on to the same phase (e.g. R or L1).

g.The power clamp meter will automatically select the proper range.

h.Wait until the reading is stable (about 6 seconds) and then press the “HOLD” key; the WL1 symbol will clear and the WL2 symbol will appear in order to instruct users to take the WS(L2) measurement.

2.Second, measure WS(L2) (refer to the diagram that follows the steps below)

a.Disconnect the test probe from the phase where the jaw was clamped in the previous measurement.

b.Connect the test probe of the V (red) terminal to the second phase (e.g. S or L2).

c.Clamp on to the phase where the test probe is connected (e.g. S or L2 phase)

d.The power clamp will automatically select proper range.

e.Wait until the reading is stable (about 6 seconds) and then press the “HOLD” key; the WL2 symbol will disappear. The WL3 symbol will appear to instruct users to take the WT(L3) measurement.

10

380976

V3.1

6/08

Image 10
Contents 1Φ/3Φ 1000 Amp True RMS Power Clamp-On Model Table of Contents IntroductionSafety Information WarrantyWhen servicing, use only specified replacement parts Meter Description AC + DC Voltage Measurements MeasurementsAC Current Measurements 380976 V3.1 380976 V3.1 KW+PF Power Factor, KW+KVAR, KVA+θPhase Angle or A+V KVA 3φ 3W380976 V3.1 380976 V3.1 380976 V3.1 380976 V3.1 KVA 3φ 4W Resistance and Audible Continuity MeasurementsDiode Tests Temperature MeasurementsCapacitance Measurements AC and DC µA MeasurementsHold MX/MN Key Meter Control KeysRange Key Auto Sleep Disable Automatic Sleep Mode and Battery ReplacementBattery Replacement Specifications ΜA True RMS AC+DC Measurement SpecificationsAC Current 50Hz to 400Hz True RMS AC Voltage 50Hz to 400Hz True RMS1Φ/3Φ Horse Power HP PF 0.5 or 60o 50/60Hz Temperature K-Type thermocouple1Φ/3Φ True Power PF 0.5 or 60o 50/60Hz 1Φ/3Φ Reactive Power Kvar PF 0.5 or 60o 50/60HzPhase Angle 50/60Hz Calibration and Repair Services1Φ/3Φ Apparent Power KVA Frequency