4700 Series High-Current DC Loads

120V, 1kW/200A to 36kW/7200A
18 Voltage, Current, Power, Timing and Waveform Capture Measurements
Complex load profile playback
Manual touch-panel user interface

Application

4700 Series Electronic Loads are designed for testing applications that require high-current plus an exceptionally wide range of measurements, including product dynamic performance. The loads provide superior reliability derived from the inherent simplicity and safety of air cooling.4700 Loads may be PC-controlled either through NH Research's emPower® test executive or user-written test programs in LabVIEW, LabWindows/CVI and other ActiveX-compatible languages. Typical power conversion products tested include higher-power DC supplies, telecom rectifiers, fuel cells and batteries.

Extended Internal Measurements

The 4700 Loads eliminate the need for separate external instruments to capture timing and other dynamic measurements during UUT turn-on and turn-off. This is accomplished by incorporating the task-essential features of a DMM, DSO and Transient Generator. With this built-in capability, the 4700 can rapidly generate engineering-characterization-like test information at fast test speeds. An additional benefit is savings from fewer measurement instruments, switches and interconnection wiring.

Complex Load Profile Playback

To facilitate ease of re-creating complex, precisely timed, multi-mode load profiles, a 100-step macro-recording capability allows capturing a dynamic sequence for later playback from within the Load. Additional complex profiles can be stored in a system controller library for download to the Load when required.

Key Specifications

Model Number	4700-1	4700-2	4700-3	4700-6	4700-12	4700-18	4700-24	4700-36
Power	1 kW	2 kW	3 kW	6 kW	12 kW	18 kW	24 kW	36 kW *
Max Current	200 A	400 A	600 A	1200 A	2400 A	3600 A	4800 A	7200 A
Voltage Range	1-120 V	1-120 V	1-120 V	1-120 V	1-120 V	1-120 V	1-120 V	1-120 V

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