Table of Contents
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Functional
Description
Introduction
The Model 928A is a two-channel, AC power mea-
surement instrument, providing 0.1% accuracy in a
handheld package. Besides voltage, current and power
quantities, it measures power quality, including har-
monics, flicker, sags, surges and interruptions. Also,
it includes a graphical display, internal clock, approxi-
mately 400 KB of flash for data storage, and full-time
battery operation using common AA-size NiMH or Al-
kaline cells.
User Interface
The user interface consists of a 128 x 64 graphic LCD
with backlight, and 30-key silicone keypad. Also in-
cluded is a USB serial interface for configuring and
data retrieval.
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