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  • EGS series | DC Electronic Loads | Matsusada Precision
  • EGS series | DC Electronic Loads | Matsusada Precision

COMPACT DC ELECTRONIC LOAD

  • Load Voltage: 18V 36V 60V
  • Load Current: 2A 5A 10A
  • Load Power: 75W
  • Extremely compact

75W Load in ultra-compact 1.38-inch width

No need big testing space. EGS series, the compact DC electronic load, is perfect for testing small batteries, power supply circuits, etc. The EGS series features a compact, lightweight design and high-efficient control modes that contribute to a space-saving and intelligent system.

Features

  • Capable of batch control of maximum of 16units with the master/slave function
  • Setting in 1mA increments depending on the models.
  • Multiple operation models of Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV), and Constant Current + Constant Voltage (CC + CV)

Perfect space saving with an extremely compact, lightweight body to suit any customer's space for installation

While the number of units installed on a 19 inches rack was limited up to about only five as multiple units so far, the EGS units can accept as many as 10 units in even smaller spaces than usual.

A maximum of ten units are available on a 19 inches 3U-size rack. | EGS series | DC Electronic Loads | Matsusada Precision

Batch control of up to 16 units with the master/slave function

EGS series is available for multi-channel DC electronic load.

Master/Slave Control

The operations of multiple EGS devices can be controlled from the master device. Up to 16 units can be connected.
The connection of master/slave control will be made between the same models.

Master/Slave Control | EGS series | DC Electronic Loads | Matsusada Precision

Providing four operating modes

  • 1 Constant Current (CC) mode
  • 2 Constant Resistance (CR) mode
  • 3 Constant Voltage (CV) mode
  • 4 Constant Current (CC) mode + Constant Voltage (CV) mode *Available for -LCcv option

IMAGES OF USE

Bench testing | EGS series | DC Electronic Loads | Matsusada Precision
Vehicle-mounted testing | EGS series | DC Electronic Loads | Matsusada Precision

Main Applications

  • Simulated load for DC/DC converter.
  • Life testing of batteries
  • Sensor simulation in vehicle-mounted testing
  • Impedance variation testing for instrumentation signals
  • Evaluation of boards
  • LED driver
  • Consumer power supplies
  • Power converters
  • Semiconductor components

Models

Model Rated voltage Rated current Rated power
EGS75W-18V 18 V 10 A 75 W
EGS75W-36V 36 V 5 A
EGS75W-60V 60 V 2 A
Output range | EGS series | DC Electronic Loads | Matsusada Precision

Functions

Digital Interface

This interface is Matsusada Precision’ s proprietary dedicated digital communication port. This interface has modular type IN and OUT ports to allow daisy-chain connection. Combined with an adapter (sold separately). Multiple power supplies can be controlled at once. Adapters for LAN, USB, RS-232C, RS-485, and GPIB are available so that you can choose a suitable communication interface. One-control operation by master/slave connection is also possible. * Not a function for increasing current by parallel connections.
Adapter separately.

LOAD-OFF TIMER FUNCTION

As the load-off timer function is set through the front panel operation, the elapsed time monitoring starting load-on as well as the automatic load-off are available in a certain period of time. Time can be set from 1 second to 999 hours, 59 minutes, 59 seconds.

Load-off Timer Function | EGS series | DC Electronic Loads | Matsusada Precision

External

LOAD ON/OFF | EGS series | DC Electronic Loads | Matsusada Precision

Specifications

For details, download the datasheet below.

Options

-LCcv

Constant Current (CC) mode + Constant Voltage (CV) mode, and Undercurrent Protection (UCP) are available for this option.

-LH

The ground voltage between the load connection terminals and chassis is ±500 Vdc.

-LUs1

Enable digital control with USB
One power supply can be connected per one USB port which the computer equipped.
In case the number of USB ports of the computer is not enough, use USB HUB.
However, it may not work correctly, depending on USB HUB.
* It is not available with the Master/Slave function.

-L(Mc0.5), -L(Mc0.15)

communications cable length change
The CO-M cable length can be selected from 0.5 meters or 0.15 meters.
(Please choose one of the two cables described above.)

How to Order

When ordering, add Option No to Model No.
Example: EGS75W-36V-L(Mc0.5)

Accessories

Digital interface port

To use Matsusada Precision’ s digital interface, you need to prepare a digital interface adapter separately. The following interface adapters are available according to your controller port.

  • CO-E32m: LAN adapter
  • CO-U32m: USB adapter
  • CO-MET2-9: RS-232C (9 pin) adapter
  • CO-MET2-25: RS-232C (25 pin) adapter
  • CO-MET4-25: RS-485 (25 pin) adapter
    (CO-MET2-9/CO-MET2-25/CO-MET4-25: The connector is D-sub type.)
  • CO-G32m: GPIB adapter (Discontinued in December 2028)
Example of communication with a digital adapter
Example of communication with a digital adapter | EGS series | Matsusada Precision

For details, refer to CO/USB series

AC Input Cable
Standard CABLE TYPE1 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 125 V / 10 A 2.5 meters
Fixed length
Sold separately CABLE TYPE3 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 250 V / 10 A 2.5 meters
Fixed length
Sold separately CABLE TYPE4 CABLE series | AC input cable | Matsusada Precision CABLE series | AC input cable | Matsusada Precision 250 V / 10 A 2.5 meters
Fixed length
Stand

Convenient for using one unit at a time.

stand | EGS series | DC Electronic Loads | Matsusada Precision
Use stand | EGS series | DC Electronic Loads | Matsusada Precision
Rack mount shelf
Rack-mount holder | EGS series | DC Electronic Loads | Matsusada Precision
Application software for power supplies and electronic loads

PSS2en series
PSS2en is the dedicated software which can actuate various power supplies, electronic loads and digital controller for power supplies manufactured by Matsusada Precision Inc. with simple set up.
It is the perfect for the aging test, the burn-in test and the withstand voltage test for electronic parts, and for the endurance test, intermittent/continuous operation test or various simulation test for electric component of automobile.
For details, refer to PSS2en page.

PSS2en | Application software for power supplies and electronic loads | Matsusada Precision

Dimensions

For details, download the datasheet below.

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