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Atec NHResearch-4700Series User Manual

High-current dc loads, 4700 lxi series

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High-Current DC Loads

4700 LXI SERIES

K 120V, 1kW/200A to 36kW/7200A
K 18 Voltage, Current, Power and

Timing Measurements

K Complex load profile playback
K Air cooling
K Touch-panel manual control

APPLICATION

4700 LXI Series Electronic Loads are designed for testing applications that require high-power and high-current
plus measurement of UUT dynamic performance. The Loads provide exceptional reliability combined with the
inherent simplicity and safety of air cooling. The 4700 Loads are controlled through either a manual touch-panel, a
LabVIEW soft-panel or an emPower™ Test Executive enabled automatic test station. Typical power conversion
products to be tested include higher-power DC supplies, telecom rectifiers, fuel cells and batteries.

Turn-on Time

Settle Time

Peak

Settle

Overshoot

max

min

Rise

Time

Turn-on voltage & current measurements

EXTENDED INTERNAL MEASUREMENTS

The 4700 Loads eliminate the need for separate external
instruments and related switching 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 faster test speeds with
the additional benefit of cost savings from fewer measurement
instruments, switches and interconnection wiring.

Power supply turn-on voltage & current
waveforms in Auto Mode

Constant Current

Constant Resistance

Constant Voltage

Current

Voltage

AUTO MODE

The 4700 contains a unique Auto Mode that provides
glitchless automatic switching between CR, CC, CV and CP
limits. Previously challenging tests that are now made
possible include turn-on into a CR load, confirming the
complete V-I curve for Lithium-Ion battery chargers, and
preventing device-under-test blowup should a protection
circuit fail.