400A AC/DC Watt Clamp-on Measures Watts, Current, and Voltage With AC/DC True Power measurements to 240kW 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 AC Power 40kW 240kW DC Power 40kW 240kW AC Current 400A DC Current AC Voltage DC Voltage Frequency Dimensions Weight Resolution 10W 100W 10W 100W 0.1A Accuracy ±(%rdg+digits) ±(1.5% + 3d)@50/60Hz ±(1.5% + 3d)@50/60Hz ±(1.5% + 3d) ±(1.5% + 3d) ±(1.5% + 3d)@50/60Hz 400A 0.1A ±(1.5% + 3d) 600V 1V ±(1.5% + 2d)@50/60Hz 400V 0.1V ±(1.0% + 2d) 10kHz 0.01-100Hz ±(0.8% + 2d) 7.2 x 2.5 x 1.4" (183 x 64 x 36mm) 6.7oz (190g including batteries) Input Signal Range 0-250V, 0-400A, PF 0-1 0-600V, 0-400A, PF 0-1 0-250V, 0-400A 0-600V, 0-400A Overload protection: 600A AC (AC frequency range 40Hz-1kHz) Overload protection: 600A DC Overload protection: 800V AC Overload protection: 800V DC Overload protection: 600V AC Ordering Information: 380940................400A AC/DC Watt Clamp-on 380940-NIST ......380940 with NIST Certificate www.extech.com Specifications subject to change without notice. 7/3/08 - R1 Copyright © 2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.