EPS-3000P-II, EPS-3000P-IIV
Electrophoresis
Power Supplies
Operator‘s Manual
Table of Contents
Safety Considerations 3
Introduction 4
Unpacking the Power Supply 4
Specications 5
Getting Started 6
Using the Power Supply 6
Constant Voltage Operations 7
Constant Current Operations 7
Constant Power Operations 8
Constant Temperature Operations 8
Timed Operations 8
Volt-Hour Operations 9
Automatic Power-fail Restart 9
Programming 9
Cleaning 10
Troubleshooting and Error Indications 11
EPS-3000P-II(V) Warranty Statement 12
Compliance 12
Replacement Parts 12
EPS-3000P-II(V) Manual www.cbsscientic.com2
Safety Considerations
Read and understand this manual completely before attempting to set up or use
this instrument.
This equipment has been designed and tested to conform to CSA1010 safety standards, as
applicable to laboratory instrumentation. This applies only to the EPS-3000P-II(V) when used
as specied in the documentation, in its intended applications, with CBS Scientic approved
electrophoresis apparatus only. Usage in any other manner may not provide similar performance
or safety protection.
This equipment is provided with a 3-conductor, grounded AC line cord. The protective earth
ground is necessary for safe operation. Do not use any other AC line cord with this instrument.
The EPS-3000P-II(V) is a high voltage power supply capable of generating dangerous levels
of voltage and current during operation. Exercise caution when working around and with the
electrical connections of this equipment. Always check electrical connectors, wires, and associated
apparatus for any signs of wear or damage before using with this equipment. Be sure to use only
electrophoresis equipment that is suitably rated for the voltage and current capabilities of the EPS3000P-II(V) power supply.
The output of the EPS-3000P-II(V) power supply is intended for connection to electrically isolated
electrophoresis apparatus only. Use only with electrically isolated electrophoresis apparatus with
minimum isolation of 3000V. Do not connect any terminal of the EPS-3000P-II(V) output to earth
ground. This may impair the safety protection provided by the equipment, or cause equipment
damage.
The high voltage output of the EPS-3000P-II(V) power supply takes some amount of time to
decay when unloaded or lightly loaded. Wait a minimum of 60 seconds after stopping a run
before touching the power supply leads.
This equipment has a protective ground leakage current of 0.5mA at 120VAC, and 1mA
at 230VAC. While signicantly below the 3.5mA limitation for laboratory instrumentation,
some applications and locations require a leakage current below 0.5mA. Check the specic
requirements of your application before using this equipment.
This equipment is for indoor use only.
EPS-3000P-II(V) Manual Revision 2/10/14
3
Introduction
Thank you for selecting a CBS Scientic EPS-3000P-II(V) Electrophoresis power supply. This
manual describes the operation of the EPS-3000P-II(V). The power supply that you have purchased
is the most productive and easy-to-use unit available anywhere. This manual should answer any
questions that might arise in operating your power supply; however, don’t hesitate to call our CBS
Scientic Technical Support at 1-800-756-5737 or email us at TechnicalService@cbssci.com if you
need any assistance.
The EPS-3000P-II(V) power supply is designed to provide constant voltage, current, power, or
temperature in both Manual and Programmed modes of operation commonly used in electrophoresis
applications. One to four sets of electrophoresis cells can be connected in parallel and run
simultaneously. The EPS-3000P-II(V) can deliver up to 400W of total output power. When operating
in any constant mode, the power supply automatically limits the other parameters to either the power
supply maximum, or a lower limit if set by the user. If any non-constant limit is reached, the power
supply will automatically switch control modes, controlling the limit parameter. Note:
crossover and control for temperature when the unit is in the Constant Current, Constant Voltage, or
Constant Power mode. The only time the unit will control for temperature as an upper limit is when the
unit is in the Constant Temperature mode (See Constant Temperature Operations section for details).
In this way, the EPS-3000P-II(V) protects your electrophoresis cells from damaging over power
conditions. The EPS-3000P-II(V) power supply also provides for timed and volt-hour operation in all
control modes, and allows an automatic completion in the event of a power loss if enabled.
Features
. •20-3000V, adjustable in 1 volt steps
. •1-400mA, adjustable in 1mA steps
. •1-400W, adjustable in 1W steps
. •0-90C, adjustable in 1degree C steps
. •Automatic control mode crossover
. •0-99 hour 59 minute timed run
. •0-9999 volt-hour timed run
. •Automatic restart if loss of AC power (if enabled)
. •Large LCD display
The unit will not
Unpacking the Power Supply
When unpacking your EPS-3000P-II(V) power supply, be sure you have received the following items.
. •EPS-3000P-II(V) unit
. •AC line cord(s)
. •This manual
Inspect your equipment and packaging material for signs of damage. Damage to the shipping
container may indicate rough handling which could cause internal damage to the power supply. If you
suspect shipping damage to the power supply, contact your carrier for instructions on ling a claim. If
you are missing any of the above items, contact your supplier for instructions.
EPS-3000P-II(V) Manual www.cbsscientic.com4
Specications
AC input Power
100-240 VAC, 50-60Hz, 500VA Max
Environmental
Operating temperature: 0-40°C, 0-95% R.H. non-condensing Altitude: 2000m Overvoltage
category II, IEC664 Pollution degree 2, IEC664
DC output Power
20-3000VDC, 400W Max 1-400mA, 400W Max Ripple: ± 1% Drift: ± 1%, after 30-minute warm-
up
Power Cord Specications
Power Supply cat. # Power Cord Supplied
EPS-3000P-II US
EPS-3000P-IIV Continental Europe, UK
EPS-3000P-II(V) Manual Revision 2/10/14
5
Getting Started
Select a location that allows for 3” clearance behind the power supply, and comfortable reach of the
front panel controls and cell connections. Do not block the vented area of the case - on the front
bottom of the unit, or the fan area at the rear. Connect the power supply using a cord appropriate for
the mains supply. Connect the electrophoresis apparatus to the power supply, making sure to match
the red positive lead to the red positive jack, and the black negative lead to the black negative jack.
Similarly, connect a second or more electrophoresis apparatus to the power supply if you plan to run
more than one in parallel. Attach a temperature probe to the EPS-3000P-II(V) rear located connector
and the electrophoresis apparatus if you intend to perform temperature-controlled runs. Note that only
one electrophoresis apparatus can be controlled when using temperature control. Power the unit on
using the AC power switch located at the rear of the unit, next to the AC line cord entry.
Figure 1. Front Panel Controls
Using the Power Supply
Press the dark gray key on the front of the unit to enable/disable the control logic. The LCD display will
illuminate and allow selection of MANUAL or PROGRAM mode of operation as well as enable/disable
automatic power-fail restart. Toggle automatic power-fail restart by pressing the topmost function key
to the right of the display. Select MANUAL or PROGRAM mode using the function keys to the right of
the display (see Programming section for programming mode description). In manual mode, the EPS3000P-II(V) preserves the constant setpoint each time you start a run. The constant parameter is saved
independently for each mode; constant voltage, current, power, and temperature.
Note: The unit will not crossover and control for temperature when the unit is in the Constant
Current, Constant Voltage, or Constant Power mode. The only time the unit will control for
EPS-3000P-II(V) Manual www.cbsscientic.com6
temperature as an upper limit is when the unit is in the Constant Temperature mode (See
Constant Temperature Operations section for details).
To change the control mode, press the Exit key. From the resulting screen, select the new constant
parameter using the function keys to the right of the display.
After selecting a control mode and setting the limit and timed run parameters if desired, press the Run
key to energize the power supply output. The power supply output will ramp up to the appropriate
setpoint, while not allowing any limit parameter to be exceeded. If any limit parameter should be
exceeded, then the power supply will crossover control modes, making the limit parameter the
new control setpoint. The run mode display shows the controlled parameter highlighted, and will
automatically change if a crossover has occurred.
To stop a run in progress, press the Run key, the Stop key, or the gray ON/OFF key. The display will
change to “STOP” signifying that the output is no longer energized. To pause a run in progress, press
the Pause key. The display will change to “PAUSE” signifying that the output is no longer energized,
and that the run can be resumed. Pressing Run or Pause resumes the run from the previous point
(i.e. for a timed run). Only a run that has been paused can be restarted. After Stopping a run, or
to change parameters of a (paused) run, you must cycle the control logic off and then back on by
pressing the gray ON/OFF key.
During a run, the display will show the actual values of voltage, current, power, and temperature.
time value displays elapsed time for an untimed run, or time left for a timed run. The volt-hour value
displays the accumulated volt-hour value for the run.
Constant Voltage Operations
From the mode selection screen, select constant voltage operation by pressing the appropriate function
key located to the right of the display. To get to the selection screen from an operating screen, press
Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF key and selecting
MANUAL. The EPS-3000P-II(V) will display the last saved setpoint for constant voltage mode. To
switch between volts/current/power and time/volt-hours/temperature, press function key F1. T
a parameter, press the function key located to the right of the display, next to the parameter you wish
to change. The EPS-3000P-II(V) will allow a new value to be entered using the keypad numeric keys.
Press the function key labeled “Enter” to complete the new setting. Press Clear to erase previous
keystrokes. Press Exit to cancel entering a new value. The EPS-3000P-II(V) will not accept a voltage
setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The EPS-3000P-II(V) will
not accept a limit parameter outside of the allowed range.
In addition, the EPS-3000P-II(V) will never exceed the maximum power output specication of 400W.
The
o change
Constant Current Operations
From the mode selection screen, select constant current operation by pressing the appropriate function
key located to the right of the display. To get to the selection screen from an operating screen, press
Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF key and selecting
MANUAL. The EPS-3000P-II(V) will display the last saved setpoint for constant current mode. To
switch between volts/current/power and time/volt-hours/temperature, press function key F1. T
a parameter, press the function key located to the right of the display, next to the parameter you wish
to change. The EPS-3000P-II(V) will allow a new value to be entered using the keypad numeric keys.
Press the function key labeled “Enter” to complete the new setting. Press Clear to erase previous
keystrokes. Press Exit to cancel entering a new value. The EPS-3000P-II(V) will not accept a current
setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The EPS-3000P-II(V) will
not accept a limit parameter outside of the allowed range.
In addition, the EPS-3000P-II(V) will never exceed the maximum power output specication of 400W.
EPS-3000P-II(V) Manual Revision 2/10/14
7
o change
Constant Power Operations
From the mode selection screen, select constant power operation by pressing the appropriate function
key located to the right of the display. To get to the selection screen from an operating screen, press
Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF key and selecting
MANUAL. The EPS-3000P-II(V) will display the last saved setpoint for constant power mode. To switch
between volts/current/power and time/volt-hours/temperature, press function key F1. T
parameter, press the function key located to the right of the display, next to the parameter you wish to
change. The EPS-3000P-II(V) will allow a new value to be entered using the keypad numeric keys.
Press the function key labeled “Enter” to complete the new setting. Press Clear to erase previous
keystrokes. Press Exit to cancel entering a new value. The EPS-3000P-II(V) will not accept a power
setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The EPS-3000P-II(V) will
not accept a limit parameter outside of the allowed range.
Constant Temperature Operations
NOTE: The EPS-3000P-II(V) controls for temperature by regulating the power output by the unit
until the set temperature control limit is reached. The unit will generate a constant power output to
the selected device until the temperature setpoint of the gel is reached. Once the set temperature
control limit is achieved, the EPS-3000P-II(V) will regulate the power output to maintain the gel at a
xed temperature. It is important to optimize the power required for an application so that there is
sufcient power output from the EPS-3000P-II(V) power supply to enable the gel to reach the required
temperature. If the output power is not sufcient in allowing the gel to reach the desired temperature,
the unit will not be able to control /limit the temperature of the device.
o change a
From the mode selection screen, select constant temperature operation by pressing the appropriate
function key located to the right of the display. To get to the selection screen from an operating screen,
press Exit, or cycle the control logic off and then back on by pressing the gray ON/OFF key and
selecting MANUAL. The EPS-3000P-II(V) will display the last saved setpoint for constant temperature
mode. To switch between volts/current/power and time/volt-hours/temperature, press function key F1.
NOTE: Only the power and temperature values will be control parameters in the constant temperature
mode. If you desire, the default voltage and current limits may be changed. However, the unit
will not control for either voltage or current while in the constant temperature mode. T
parameter, press the function key located to the right of the display, next to the parameter you wish to
change. The EPS-3000P-II(V) will allow a new value to be entered using the keypad numeric keys.
Press the function key labeled “Enter” to complete the new setting. Press Clear to erase previous
keystrokes. Press Exit to cancel entering a new value. The EPS-3000P-II(V) will not accept a
temperature setpoint outside of the allowed range. Press Clear to re-enter an appropriate value.
The limit parameters are normally set to the power supply maximum values. The EPS-3000P-II(V) will
not accept a limit parameter outside of the allowed range.
In addition, the EPS-3000P-II(V) will never exceed the maximum power output specication of 400W.
To run in the Constant Temperature Mode, an FBTEMP temperature probe must be plugged into the
unit. Please ensure that the FBTEMP temperature probe is securely sealed to the surface of the
apparatus to be measured.
Timed Operations
It is possible to enter an amount of time for the power supply to provide power, after which it will
automatically shut off. Use this feature for timed runs.
Set up a constant mode setpoint and limits as described above. Enter a time duration of 0-99
hours, 59 minutes. A time duration of zero effectively disables timed run mode.
When running a timed run, the time parameter displays the time remaining in the run. When
running a non-timed run, the time parameter displays the elapsed time during the run.
o change a
EPS-3000P-II(V) Manual www.cbsscientic.com8
Volt-Hour Operations
It is possible to enter an amount of volt-hours for the power supply to provide power, after which it
will automatically shut off. Volt-hours is the integration of voltage over time. Use volt-hour control to
provide consistency between runs.
Set up a constant mode setpoint and limits as described above. Enter a volt-hour duration of 0
volt-hours. A volt-hour duration of zero effectively disables volt-hour run mode.
During a run, the volt-hour value displays the accumulated volt-hour value for the run.
Automatic Power-fail Restart
Automatic power-fail restart capability allows a timed or volt-hour run which is interrupted by loss of AC
power to be restarted automatically, so that the total time/volt-hour programmed for the run will be met.
NOTE: Loss of AC power includes switching off the unit using the power switch located at the rear of
the unit. When performing timed or volt-hour runs with power-fail restart enabled, always use the front
panel controls to stop a run in progress.
To enable power-fail restart, press the top function key when in the mode selection screen (MANUAL
or PROGRAM). The state of power-fail restart will toggle from off to on or on to off with each keypress.
When AC power is restored during a run in which power-fail restart is enabled, the display will show
“POWER-FAIL RESTART” for approximately 10 seconds indicating power-fail restart pending. During
this time the output is not energized, to allow safely stopping the run (by pressing Run). After the
power-fail restart pending delay is completed, the power supply output will ramp up to the setpoint
value and the run will continue from that point. Any number of power interruptions can occur during the
completion of a single run.
If a power-fail restart occurs during the running of a program the EPS-3000P-II(V) will complete
the interrupted step, and then advance to the next step in the program.
9999
Programming
The EPS-3000P-II(V) can store 9 programs, each containing 9 steps. A program step is a constant
voltage, current, power, or temperature setpoint with any associated limit parameters, and most
importantly a time and/or volt-hour setting. When running a program step, after the time or volt-hour
limit is reached, the EPS-3000P-II(V) will automatically run the next program step (if there is one). After
all program steps are completed in a program the EPS-3000P-II(V) will shut down. Any sequence of
control mode and timed/volt-hour steps can be contained in a program. Note that a program step can
contain a zero for the time and volt-hour parameters, in which case the EPS-3000P-II(V) will continue to
maintain that setpoint indenitely (just like the setting had been run from MANUAL mode).
To enter programming mode from an operating screen, cycle the control logic off and then back
on by pressing the gray ON/OFF key and selecting PROGRAM. The EPS-3000P-II(V) will display
the program screen, which shows the number of steps contained in the selected program. Use the
function keys to the right of the display to move through the 9 possible programs. T
starting from step 1, press the Run key. To edit a program (including adding a rst step to an empty
program) press the function key labeled EDIT. The EPS-3000P-II(V) will display the step screen,
which shows the parameters for the selected step (except when the program is empty in which case
the EPS-3000P-II(V) automatically starts entering the rst step as follows). Use the function keys
to the right of the display to move through the 9 possible steps. T
the selected step, press the Run key. To edit a step press the function key labeled EDIT. The EPS3000P-II(V) displays the mode selection screen. Select a constant mode of operation by pressing the
appropriate function key located to the right of the display. To switch between volts/current/power and
time/volt-hours/temperature, press function key F1. To change a parameter, press the function key
located to the right of the display, next to the parameter you wish to change. The EPS-3000P-II(V)
will allow a new value to be entered using the keypad numeric keys. Press the function key labeled
“Enter” to complete the new setting. Press Clear to erase previous keystrokes. Press Exit to cancel
o run the program
o run the program starting from
EPS-3000P-II(V) Manual Revision 2/10/14
9
entering a new value. The EPS-3000P-II(V) will not accept any parameter outside of the allowed
range. Press Clear to re-enter an appropriate value. When all the parameters of the step are as
desired, press Exit to return to the step screen. The newly entered parameters will be displayed in
the selected step. To add a step after the selected step press the function key labeled ADD. Enter
parameters for the step as for EDIT, pressing Exit when complete.
To delete a program or step, press the Clear key from the program or step screen as desired. After
conrmation the EPS-3000P-II(V) will remove the selected program or step from memory.
Method number
Number of steps
Method number
Step parameters:
the setpoint is
reverse video
Method 1 Next
2 steps Prev
Edit
Figure 2. Program screen
Step 1 of 2
Method 1 - 1/2 Next
100V / 200mA Prev
150W / 0 C Add
0:10 Edit
Navigation and editing keys
Navigation and editing keys
Figure 3. Step screen
Cleaning
Before cleaning the unit, be sure to always turn off AC power using the switch at the rear of the unit,
and then disconnecting the AC line cord. The front of the unit is sealed and can be wiped clean with
any mild detergent solution. Avoid harsh cleaners or agents as they may deteriorate the surface of the
tactile membrane keys.
EPS-3000P-II(V) Manual www.cbsscientic.com10
Troubleshooting and Error Indications
The EPS-3000P detects and reports several events and conditions that are considered errors. The EPS-3000P
will stop any run in process and display “ERROR XX” where XX is one of the below listed errors. When the EPS3000P is displaying an error indication, press the gray ON/OFF key to clear the error and return to setup mode, or
press the Run key to resume the run (after correcting the cause of the error). Note that loss of AC power during a
run is considered an error condition. Always stop a run before turning off AC power to the EPS-3000P.
‘XX’ Condition and possible remedy
Minimum load current detected. The output is not connected, or the
00 20
01 21
electrophoresis apparatus is not set up properly. Check your setup and
connections.
Maximum load current exceeded. The output is short circuit, or the
electrophoresis apparatus is not set up properly. Check your setup and
connections
02
03
04
05
06-99
Step load current change. The EPS-3000P has detected a large change in
load current. Check your setup and connections
Loss of AC power; PF enabled and completed. The EPS-3000P detected
loss of AC power, however the run was completed as programmed.
Loss of AC power; PF disabled and not completed. The EPS-3000P detected
loss of AC power, the run was not completed since PF was not enabled.
Loss of AC power; run not timed. The EPS-3000P detected loss of AC power.
The EPS-3000P detected an internal error condition. Contact technical
support for instructions.
Before servicing the unit, be sure to always turn off AC power using the switch at the rear of the
unit, and then disconnecting the AC line cord. The EPS-3000P power supply requires no periodic
servicing and should provide years of trouble free operation. Should you need to replace the fuses
proceed as follows:
Replacing a fuse
CAUTION: The EPS-3000P uses double pole neutral fusing.
Turn off AC power using the switch at the rear of the unit, and then disconnecting the
AC line cord. Remove the fuse holder assembly using a small at blade screwdriver.
Always replace both fuses with appropriate replacement fuses: 5A, 250V, 5X20mm, type
T fuse (T5A,250V) (catalog number FB-FUSE-3).
EPS-3000P-II(V) Manual Revision 2/10/14
11
EPS-3000P Warranty Statement
The CBS Scientic Company warrants to the direct purchaser that the EPS-3000P will be free from defects in
material or workmanship for a specied warranty period. During that period, CBS Scientic will repair or replace
the product or provide credit, at its sole option, upon prompt notication and compliance with its instructions. For
EPS-3000P-II(V) power supplies that specied period is 48 months from manufacturing date.
Unless otherwise agreed, the warranty is limited to the country in which the product is sold.
No CBS Scientic employee, agent or representative has the authority to bind CBS Scientic to any oral
representation or warranty concerning any product sold. Any oral representation or warranty made prior to
purchase of any product and not set forth in writing and signed by a duly authorized ofcer of CBS Scientic shall
not be enforceable by the purchaser.
CBS Scientic EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
CBS Scientic’s sole responsibility and the purchaser’s exclusive remedy for any claim arising out of the
purchase of any product listed above is repair, replacement or credit as described above, where applicable. In
no event: 1) shall the cost of the exclusive remedy exceed the purchase price: 2) shall CBS Scientic be liable
for any special, indirect, incidental, consequential, or exemplary damages, howsoever arising, even if CBS
Scientic has been advised of the possibility of such damages.
Each article that CBS Scientic furnishes will conform to the written specications given in this manual, or those
of a further improved model. Changes are made often to the information in the manual and will be incorporated
into future editions.
Compliance
CSA 1010
This equipment has been designed and tested to conform to CSA1010 safety standards, as applicable
to laboratory instrumentation. This applies only to the EPS-3000P when used as specied in the
documentation, in its intended applications, with CBS Scientic approved electrophoresis apparatus only.
Usage in any other manner may not provide suitable protection.
Replacement Parts
AC line cord, UK Plug FB-CORD-2
AC line cord, Cont. Euro Plug FB-CORD-3
Fuse, T5A,250V FB-FUSE-3
For replacement parts contact CBS Scientic at:
CBS Scientic
P.O. Box 856
Del Mar, CA 92014
1-800-243-4959 or 1-858-755-4959
Accessories
Adapter for Cells FBAD-1
Under Counter Bracket FBUB3000
Temperature Probe (0 œ 90 C) FB-TEMP
Power Supply Deep Socket Adaptors PSA-3089
EPS-3000P-II(V) Manual www.cbsscientic.com12
EPS-3000P-II(V) Manual Revision 2/10/14
13
Instruction Manual EPS-3000P-II(V) Electrophoresis Power Supply
P.O. Box 856, Del Mar, CA 92014
Phone: 858-756-5737
Fax: 858-755-0733
www.cbsscientic.com
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