Atec Sorensen-SL Series - Manual

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The Sorensen SL series electronic loads offer the
best value with the most flexible platform. A wide
range of loads are available from 75-1800W with
both DC and AC input in benchtop, modular and
standalone form factors.
SLM Mainframe
The SLM mainframe choices include a convenient
single-bay configuration for benchtop/desktop
applications or a four bay configuration for
multichannel and ATE requirements. Either chassis
is compatible with SLM- and SLD- loads. Each
chassis contains non-volatile memory capable of
storing up to 150 module setups and nine 16-step
sequences for automated, standalone testing.
Or for more complex test sequences, the chassis
come with GPIB (optional on SLM-1) and RS-232
as standard interfaces.
SLM Family
The SLM family includes nine models of fully
programmable, single input AC or DC modular
electronic loads. DC models are offered to
test power supplies, battery chargers, battery
discharge, power supply transient response and
integration into ATE systems. AC models are ideal
to test low power inverters.
The DC models support operation in Constant
Current (CC), Constant Voltage (CV), Constant
Resistance (CR) or Constant Power (CP) mode
as well as a short simulation. Engineers have
ultimate control of current waveforms by using
either the analog input or CC dynamic mode.
An analog input (single input DC models) allows
arbitrary current waveforms up to 20kHz with an
external 0-10V signal. In dynamic mode, the pulse
generator allows fast state switching between
two programmed current levels with programmed
slew rate and dwell times.
SLD Family
The SLD family offers six models of fully
programmable, dual input modular electronic
loads. These DC modules are specifically designed
for low power, high channel count testing and
provide the highest channel density available.
SLH Family
Fully programmable, high power AC or DC
electronic loads. The 500V models are for PFC
testing, power transformers and various other AC
or DC power sources. The 300V models are used
for testing of UPSs, automatic voltage regulators
(AVR), and batteries.
• High current, 60V DC models for general
purpose power supply testing
• High voltage,AC/DCmodels are intended
for inverter test,
• Power Factor Correction (PFC) circuit testing
(500V) and UPS testing (300V)
Sorensen SL Series 75 W–14.4 kW
• Flexible Product Line
- Low power DC modules
- Low power AC modules
- High power DC,
• Remote: GPIB, RS-232, Analog
• DC Modes: CC, CR, CV, CP
• AC Modes: CR, CC with crest factor control
• Dynamic mode with slew rate control
• Flexible Data Feedback
• Current monitor output (SLM DC only)
DC and AC/DC Electronic Loads
1–720 A
100 115 230
60–500 V
259