EXTECH 380940-NIST User Guide

Specifications subject to change without notice.
Copyright © 2010 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.

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7/27/10 - R1

Measures Watts, Current, and Voltage

With AC/DC True Power measurements to 240kW

400A AC/DC Watt Clamp-on

Ordering Information:

380940................400A AC/DC Watt Clamp-on

380940-NIST ......380940 with Calibration Traceable to NIST

Features:

• True RMS AC Voltage and Current

• 0.9" (23mm) jaw opening

• Large 4000 count LCD display

• Fast 40 segment analog bargraph

• Data Hold, Max/Min recall,

Auto Zero (DC current), plus
low battery indication

• Frequency to 10kHz

• Auto power off

• Complete with test leads,

2 AA batteries, and carrying case

Specifications: Range Resolution Accuracy ±(%rdg+digits) Input Signal Range

AC Power 40kW 10W ±(1.5% + 3d)@50/60Hz 0-250V, 0-400A, PF 0-1

240kW 100W ±(1.5% + 3d)@50/60Hz 0-600V, 0-400A, PF 0-1

DC Power 40kW 10W ±(1.5% + 3d) 0-250V, 0-400A

240kW 100W ±(1.5% + 3d) 0-600V, 0-400A

AC Current 400A 0.1A ±(1.5% + 3d)@50/60Hz Overload protection: 600A AC

(AC frequency range 40Hz-1kHz)
DC Current 400A 0.1A ±(1.5% + 3d) Overload protection: 600A DC
AC Voltage 600V 1V ±(1.5% + 2d)@50/60Hz Overload protection: 800V AC
DC Voltage 400V 0.1V ±(1.0% + 2d) Overload protection: 800V DC
Frequency 10kHz 0.01-100Hz ±(0.8% + 2d) Overload protection: 600V AC
Dimensions 7.2 x 2.5 x 1.4" (183 x 64 x 36mm)
Weight 6.7oz (190g including batteries)