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Extech Instruments Extech 380976

Extech Instruments Extech 380976
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User Guide
1Φ/3Φ 1000 Amp True RMS Power Clamp-On
Model 380976
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Extech Instruments Extech 380976 Specifications

General IconGeneral
ModelExtech 380976
CategoryMeasuring Instruments
TypeClamp Meter
DisplayLCD
Safety RatingCAT III 600V
Battery Type9V Battery
AC/DC Voltage Range0.1 to 600V
Resistance Range0.1 to 40MΩ

Summary

Safety Information and Symbols

Safety Information

Read safety information carefully before operation; avoid exceeding limits, use caution with exposed conductors, and follow manual instructions.

Measurement Procedures

AC + DC Voltage Measurements

Procedure for measuring AC and DC voltages, including auto-detection and range selection.

AC Current Measurements

Instructions for measuring AC current using the clamp-on jaws, including proper conductor placement.

Single-Phase Power Measurements

1 Power Parameters

Steps to measure single-phase power (KW, KVA, KVAR), Power Factor, and Phase Angle.

Three-Phase 3-Wire Power Measurements

Measuring Wrs(L1 L2)

Steps for the initial power measurement between phases L1 and L2.

Measuring Wts(L3 L2)

Steps for the subsequent power measurement between phases L3 and L2.

Three-Phase 4-Wire Power Measurements

First Measurement: Wr(L1)

Steps to measure power between phase L1 and neutral in a 4-wire system.

Second Measurement: Ws(L2)

Steps to measure power between phase L2 and neutral in a 4-wire system.

Continuing 4-Wire Power Measurements

Third Measurement: Wt(L3)

Steps to measure power between phase L3 and neutral in a 4-wire system.

Resistance and Continuity Measurements

Performing Resistance and Continuity Tests

Procedure for measuring resistance and checking continuity, including safety warnings.

Measurement Accuracy

AC Current Accuracy

Accuracy specifications for AC current measurements (True RMS).

AC Voltage Accuracy

Accuracy specifications for AC voltage measurements (True RMS).

Detailed Measurement Specifications

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