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

Ultra-Compact DC Electronic Load

  • Operating Voltage: 0.3V to 60V
  • Max Current: 2A or 5A
  • Maximum Power: 75W
  • Extremely compact

Ultra-thin 35mm-width for space saving and light weight

In conducting evaluation tests of small systems like batteries or power supply circuits, you will consider load device in a compact design.

Features

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

While the number of units installed on a 19-inch 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.

Previous model
EGS in a 19-inch, 3U-size rack

A maximum of ten units are available on a 19-inch 3U-size rack.

Rack-mount holder RMO series

The multiple AC input lines are neatly collected into one!

EGS series in Rack-mount holder

* Please refer to the "RMO series" brochure for details of the dedicated adapter.

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

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

* Please go to Master/Slave Control.

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

Main applications

  • Simulated load for DC/DC converter. etc.
  • Life testing of primary and rechargeable batteries along with DC power supplies
  • Sensor simulation in vehicle-mounted testing, etc.
  • Impedance variation testing for instrumentation signals
  • Evaluation of boards, etc.

Models

Model Rated voltage Rated current Rated power
EGS75W-36V 36 V 5 A 75 W
EGS75W-60V 60 V 2 A 75 W

Functions

Digital Interface

The unified control is available with master/slave operation along with USB/LAN/RS-232C/RS-485/GPIB in digital control.

CO-E32m: Adapter for LAN
Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
CO-E32
CO-U32m: Adapter for USB
Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
CO-U32m
CO-MET2-9: Adapter for RS-232C (9 pin)
Total 16 units can be connected to each CO-MET2-9.
CO-MET2-9
CO-MET2-25: Adapter for RS-232C (25 pin)
Total 16 units can be connected to each CO-MET2-25.
CO-MET2-25
CO-MET4-25: Adapter for RS-485 (25 pin)
Total 16 units can be connected to each CO-MET4-25.
CO-MET4-25
CO-G32m: Adapter for GPIB
Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
CO-G32

For details, refer to CO/USB series datasheet.

-LGmb Digital interface board
(A) CO-M cable
A two-meter cable is provided in each unit. If you need a longer cable, please consult with our sales staff.

Master/Slave Control

The operations of multiple EGS devices can be controlled from the master device. Up to 16 units can be connected.

* Not a function for increasing current by parallel connections.

Use GP-M cable

... up to 16 units

(A) CO-M Cable

A two-meter cable is provided in each unit. Not supplied when -LUs1 option is selected. If you need a longer cable or additional cables, please consult with our sales staff.

The connection of master/slave control will be made between the same models.

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

Remote Switch ON/OFF

EGS Series Remote Switch ON/OFF
LOAD Relay Open collector
ON Short VCE 0.4 V or lower
OFF Open VCE 2 V or higher

* Sink current 1 mA

Operating range

Operating range
EGS75W-36V EGS75W-60V
Constant voltage (CV) mode 0.3 V to 36 V 0.3 V to 60 V
Constant current (CC) mode 0 A to 5 A
(Minimum operating voltage 0.3 V)
0 A to 2 A
(Minimum operating voltage 0.3 V)
Constant resistance (CR) mode 6 Ω to 1 kΩ 10 Ω to 1.67 kΩ

EGS75W-36V

the graph of Range

EGS75W-60V

the graph of Range

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.

-LUs1

Enable digital control with USB. One power supply can be connected per one USB port which computer equipped. In case the number of USB port 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.

OS: Microsoft Windows XP/Vista/7/8/10 (Both 32-bit version and 64-bit version are available.)
Microsoft Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

-L(Mc0.5): Communication cable length 0.5-meter

Change the length of communication cable 2-meter to 0.5-meter.

-L(Mc0.15): Communication cable length 0.15-meter

Change the length of communication cable 2-meter to 0.15-meter.

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

How to Order

To order, please add the above option codes to the model number.
Example: EGS75W-36V-L(Mc0.5)

-LH

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

Accessories

sold separately

Note: EGS is not included in accessories.

Stand

Convenient for using one unit at a time.

stand
Use stand and EGS series

Rack mount holder

EGS series in Rack-mount holder

AC Input Cable

as standard
CABLE TYPE 1
125 V/10 A
  • CABLE TYPE 1 Power input end
  • CABLE TYPE 1 Input plug
-
CABLE TYPE 3
250 V/10 A
  • CABLE TYPE 3 Power input end
  • CABLE TYPE 3 Input plug
-
CABLE TYPE 4
250 V/10 A
  • CABLE TYPE 4 Power input end
  • CABLE TYPE 4 Input plug

Dimensions

For details, download the datasheet below.

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