EPS-300
3
B. Introduction
EPS-300 power supply is compact, space saving and light weight in design. It can be used
with many electrophoresis applications, such as running standard PAGE gels, multiple PAGE
mini gels, horizontal/vertical agarose gels, semidry transfer and mini-gel tank transfer. The LED
display reports power supply status. Parameters are set by pressing UP/DOWN arrow buttons in
combination with a MODE button. Four pairs of output jacks accept 4 mm plugs, which operate
in parallel. The output jacks are color coded, recessed for safety, and accept both 4 mm
unshielded and shielded (banana) plugs. The user interface consists of a three digit, LED
readout, and five buttons on a membrane keypad. Diagrams of the front and rear panel are
shown on the following pages. The EPS-300 operates in constant voltage or constant current
modes. Power output is controlled by setting a maximum value for voltage (up to 300 V), or
current (up to 500 mA). The maximum output power at any time is 90 Watts. The Run duration
can be continuous or programmed to a maximum duration of 1440 minutes. The EPS-300
automatically “crosses over” or switches the limiting parameter according to the programmed
limits as the resistance of the electrical load changes during a run.
B-1. Specifications
Type
EPS-300 II ; EPS-300 IIV
Input
120V, 50-60 Hz ; 230V, 50-60 Hz
Output voltage (V)
10 – 300, 1 V steps
Output current (mA)
4 – 500mA, 1mA steps
Maximum output power (W)
90 W
Output jacks
4 pairs
Output connector
4-mm plugs
Timer (Minutes)
1 – 1440, 1 minute increment
User interface
3 digit, red LED membrane keypad
Dimension (L x W x H)
320 x 240 x 73 mm
Weight
Net ~2.4 kg (5.3 lb) Gross ~3.4 kg (7.5 lb)
Safety features
No load detection, Sudden load change protection,
Over voltage protection, Automatic power failure recovery
Operating conditions
Indoor use: 0 – 40
℃
Relative humidity: 0% to 90% Non-condensing
Altitude: < 2000 m
Installation category: II
