Model 928A Power System Multimeter™
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Model 928A Power System Multimeter™ - 1

POWER CALIBRATORS AND METERS CURRENT INPUTS Model 928A Power System Multimeter™ Specifications subject to change without notice. Aprobe OUTPUT ONLY • Power and Energy • Flicker Per IEC 61000-4-15 • Harmonics I, V to 50th, THD • Phase Angle I-I, V-V, I-V • Waveform display Built by Power Professionals, For Power Professionals The Model 928A Power System Multimeter with Floating-Point DSP™ Digital Signal Analysis is an AC Power measurement instrument, providing outstanding performance and flexibility in a small, hand-held package. Not only does the Model 928A measure basic data and power quantities, but it also measures power quality including harmonics, flicker, sags, surges and interruptions. Incorporating a graphic LCD display, serial communications, real time clock and an unprecedented combination of features makes the Model 928A the ideal instrument for the power professional. Inputs The Model 928A uses two identical input measurement channels capable of measuring either voltage or current. The dual inputs allow for voltage to current, voltage to voltage or current to current measurements with a basic accuracy of 0.1%. Note: an input CT is required for any current measurement and the basic accuracy of the Model 928A is affected by the accuracy of the input CT. The flexible current inputs are compatible with both voltage output and current output CTs. Convenient current transformer calibration tables help eliminate errors introduced by the CTs and lessen their effect on system measurements. A special 0 to 40 mA range allows for accurate low level (< 10 mA) measurements. Features The Model 928A includes a bright, 128 x 64 graphic backlit LCD display, a 30-key multifunction keypad and USB 1.1 interface. The Model 928A may be powered either from four AA type cells (alkaline or NiMH) or an optional external, +7 Vdc plug-in power supply. Accessories The Model 928A requires an external CT for current measurements, such as the AP0001300 (1000:1) or the AP0012300 (100:1). Optional accessories include a tilt/ bail handle, soft case, test leads, external +7 Vdc power supply, and other CTs. Arbiter Systems, Inc. • 1324 Vendels Circle, Suite 121 • Paso Robles, CA 93446 • USA Tel: +1.805.237.3831 • Fax: +1.805.238.5717 • E-mail: sales@arbiter.com • Internet: http://www.arbiter.com

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Model 928A Power System Multimeter™ - 2

POWER CALIBRATORS AND METERS ARBITER SYSTEMS Measurements Current Input Range Low Range Burden Harmonics Input Range Accuracy Display Input Configuration The Arbiter Systems®, Inc. Model 928A Power System Multimeter™ has two identical measurement channels, Channel A and Channel B. Each input channel has a voltage input and a current input. Current inputs are intended for use with external CTs having a nominal output of 0 to 1 Arms or 0 to 1 Vrms. For basic measurements (voltage, current, frequency, and phase angle) any combination of inputs may be used. For power and energy measurements...

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Model 928A Power System Multimeter™ - 3

POWER CALIBRATORS AND METERS Model 928A Specifications General Allows for clamp-on use with a test block. 2.5 kg (5.5 lbs), shipping Environmental Temperature Operating: -10 °C to +50 °C Nonoperating: -40 °C to +75 °C Humidity Noncondensing Description Operation Manual Voltage Probe Lead Set Available Mlink software. Free download from www.arbiter.com Certificate of Compliance CofC 100:1 Clamp-on CT, 150 A, 10 mV/A AP0012300 Requires CA0027200 1000:1 Clamp-on CT, 1000 A, 1 mA/A AP0001300 Requires CA0027100 Universal Test Plug Current Shunt AS0079000 Voltage Probe Lead Set CT Cable,...

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