BT Lab Systems Mini 500 User manual

A Geno Technology, Inc. (USA) brand name
1-800-628-7730 ♦ 1-314-991-6034 ♦ [e-mail]
BT404
Mini 500 Power Supply
Cat. No. BT404

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WARNING...................................................................................................................................................... 3
SAFETY INFORMATION.............................................................................................................................. 3
ENVIRONMENTAL CONDITIONS................................................................................................................ 4
AVOIDING ELECTRICAL SHOCK.................................................................................................................. 4
AVOIDING DAMAGE TO THE INSTRUMENT .............................................................................................. 4
EQUIPMENT OPERATION .......................................................................................................................... 5
SYMBOL..................................................................................................................................................... 5
INTRODUCTION............................................................................................................................................. 7
OVERVIEW................................................................................................................................................. 7
PRODUCT DESCRIPTION & FEATURE......................................................................................................... 7
TECHNICAL SPECIFICATION........................................................................................................................... 8
INSTALLATION INSTRUCTIONS...................................................................................................................... 9
OPERATION INSTRUCTIONS .......................................................................................................................... 9
CONTROL INTERFACE................................................................................................................................ 9
START THE OPERATION........................................................................................................................... 10
TROUBLESHOOTING AND MAINTENANCE..................................................................................................11
ENCOUNTERING PROBLEMS ................................................................................................................... 12
REPLACING THE FUSE..............................................................................................................................12
MAINTENANCE........................................................................................................................................13
WARRANTY ................................................................................................................................................. 13
TECHNICAL SUPPORT ..................................................................................................................................13

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WARNING
BT Lab Systems Mini 500 Power Supply has been tested and found to comply with the limits for the CE
regulation. Also, it is RoHS compliant to deliver confident product which meets the environmental
directive. These limits are designed to provide reasonable protection against harmful interference when
the instrument series is operated in a commercial environment. This instrument series used together
with power supply unit generates, uses, and can radiate radio frequency energy, and if not installed and
used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this instrument series in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at their expense.
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment. It is strongly recommended for the user to read the following
points carefully before operating this equipment.
1. Read and follow the manual instructions carefully.
2. Do not alter the equipment. Failure to follow these directions could result in personal and/or
laboratory hazards, as well as invalidate equipment warranty.
3. Use a properly grounded electrical outlet with correct voltage and current handling capacity.
4. Disconnect from power supply before maintenance and servicing. Refer servicing to qualified
personnel.
5. Never use this instrument series without having the safety cover correctly in position.
6. Do not use the unit if there is any sign of damage to the external tank or cover. Replace
damaged parts.
7. Do not use in the presence of flammable or combustible material; fire or explosion may result.
This device contains components which may ignite such materials.
8. Refer maintenance and servicing to qualified personnel.
9. Ensure that the system is connected to electrical service according to local and national
electrical codes. Failure to make a proper connection may create fire or shock hazard.
10. Use appropriate materials and operate correctly to avoid possible hazards of explosion,
implosion or release of toxic or flammable gases arising from overheated materials.
11. The unit shall be operated only by qualified personnel.
Safety Information
Use high level of precaution against any electrical device. Before connecting the electrical supply, check
to see if the supply voltage is within the range stated at the rating label, and see to it that the device be
seated firmly. Place the unit in a safe and dry location; it must NOT touch the surrounding. Follow the
safety precautions for chemicals / dangerous materials. If needed, please contact qualified service
representative or [email protected].

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Environmental Conditions
Ensure the instrument is installed and operated strictly under the following conditions:
1. Indoor use only
2. ≤95% RH
3. 75-106 kPa
4. Altitude must not exceed 2000 meters
5. 4-40°C operating temperature
6. Pollution degree: 2
7. Mains supply voltage fluctuations up to ±10% of the normal voltage
Avoiding Electrical Shock
Follow the guidelines below to ensure safe operation of the unit.
The Mini 500 Power Supply has been designed to utilize shielded wires thus minimizing any potential
shock hazard to the user. BT Lab Systems recommends against the use of unshielded wires.
To avoid electrical shock:
1. In the event of solution spilling on the instrument, it must be dried out for at least 2 hours and
restored to NORMAL CONDITION before each operation.
2. Never connect or disconnect wires loading from the power jacks when the red indicator light of
power switch is on.
3. WAIT at least 5 seconds after stopping a run before handling output leads or any connected
apparatus.
4. ALWAYS make sure that your hands, work area, and instruments are clean and dry before
making any connections or operating the power supply.
5. ONLY connect the power cord to a properly grounded AC outlet.
Avoiding Damage to the Instrument
1. Do not attempt to operate the device if damage is suspected.
2. Protect this unit from physical damage, corrosive agents and extreme temperatures (direct
sunlight, etc.).
3. For proper ventilation and safety concerns, keep at least 10 cm of space behind the instrument,
and at least 5 cm of space on each side.
4. Use high level of precaution against the damages on the unit.
5. Do not operate the unit out of environmental conditions addressed above.
6. Do not operate the power supplies in high humidity environments (> 95%), or where
condensation may occur.

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7. To avoid condensation after operating the power supply in a cold room, wrap the unit in a
plastic bag and allow at least 2 hours for the unit to equilibrate to room temperature before
removing the bag and operating the unit.
8. Prior to applying any cleaning or decontamination methods other than manufacturer’s
recommendation, users should check with the manufacturer’s instruction to see if the proposed
method will damage the equipment.
Equipment Operation
Follow the guidelines below to ensure safe operation of the unit:
1. NEVER access dangerous chemicals or other materials to prevent possible hazard of explosion
and damage.
2. Do not operate the unit without lids or covers to prevent possible hazards.
3. A temporary conductivity caused by condensation might occur even though this series is rated
Pollution Degree 2 in accordance with IEC 664.
Symbol
Symbols used on the power supply are explained below.
Indicates an area where a potential shock hazard may exist.
Consult the manual to avoid possible personal injury or instrument damage.
Indicates disposal instruction.
DO NOT throw this unit into a municipal trash bin when this unit has reached the end of its
lifetime. To ensure utmost protection of the global environment and minimize pollution,
please recycle this unit.
Max. voltage: 500 V
Max. current: 400 mA
Max. watt: 120 W
This product has been tested to the requirements of CAN/CSA-C22.2 No. 61010-1,
second edition, including Amendment 1, or a later version of the same standard
incorporating the same level of testing requirements
Potential Risk and Preventive Measure
1. Risk assessment table
Potential Risk
Frequency
Frequent Likely Possible Rare Unlikely
Bruise √
Slash √
Electrical shock √
Power cord plug wrong √

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2. Preventative measures of risk
Potential Risk Preventive measures
Bruise Do not put the machine near the table edge.
Slash
Prevent hard impact on the case.
Electrical Shock Make sure that your hands, work area, and devices are clean and dry
Power cord plug wrong Observe correct adapter plug.
THIS LIMITED WARRANTY SHALL NOT APPLY IF THE DEFECT WAS CAUSED THROUGH ANY OF THE
FOLLOWING
1. The Product serial number or the accessory date code has been removed, erased, defaced,
altered or is illegible; or
2. The defect is resulting from the use of the product in a manner other than their normal and
customary manner, e.g., in excess of their minimum specification or operating instructions, or
malfunction or failure resulting from use of incorrect voltages; or
3. Deterioration of the Product due to normal wear and tear. All plastic surfaces and other natural
wear of externally exposed parts of the product are scratched or damaged under normal usage
(including casing, key pad, display and accessories, etc.); or
4. The defect is arising from improper installation, unauthorized repair, alteration or modification
to this product by third parties other than MS or its designee; or
5. The defect is arising from operating with components or accessories not officially authorized or
provided by MS or used in other than its intended use; or
6. The defect was caused by unauthorized software including but not limited to ROM upgrades,
non proprietary software; or
7. The defect or damage are arising from unauthorized modification of the operating software or
caused by the computer virus; or
8. The defect or damage is arising from misuse, mishandling, accidental lost, abuse, accident,
negligence and damage caused directly or indirectly by Customer, including but not limited to
improper testing, installation, alteration or modification of any kind, or spillage of food or liquid,
or build up of dirt or dust, or mains supply problem, thunderstorm activities, or infestation by
insects or vermin, or exposure to abnormally corrosive conditions, or operation with extreme
heat or humidity.

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INTRODUCTION
Overview
BT Lab Systems Mini 500 Power Supplies are recognized as unique power supplies equipped with very
powerful specifications to cover the majority of electrophoresis applications on the market. Sufficient
and accurate output voltages, two terminal pairs, and its compacted size can deliver accurate and
reliable experimental results from one experiment to another. Mini 500 Power Supplies are RoHS and CE
compliant for environmental and safety concerns. Package offering is another feature for users’
convenience and budget concern.
Front view
Rear view
Product Description & Feature
Combining small size and versatility, the newly redesigned Mini 500 power supply is an ideal choice for
any researcher. Capable of providing constant current or constant voltage in 1 mA or 1 V steps, the unit
is perfectly suited to run both vertical polyacrylamide and horizontal agarose electrophoresis
experiments. Continuous or timed operations are easily performed using the simple and user-friendly
interface. The Mini 500V features 2 electrode pairs, allowing for 2 gels to be run simultaneously, saving
both time and valuable bench space. With a universal voltage rating, the Mini 500V is also designed and
constructed to the most rigorous safety standards. Packages including single or dual horizontal
electrophoresis systems are excellent choices for educational or personal use.
Main power socket &
Fuse holder
ON/OFF Switch
Fan

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•Compact size
•Power capacity: 120W, 400mA, 500V
•Constant Voltage or Constant Current operation
•1 V step voltage selection; 1 mA step current selection
•Timer
•No load detection
•Shrouded plugs and sockets
•Two pairs of outlet terminals
•Output voltage stability
•-Economic choice for larger horizontal electrophoresis & 10 x 10 cm vertical electrophoresis
•Bundled package with ME15-15 and MV-10
•New housing and exterior design
TECHNICAL SPECIFICATION
Cat. No BT402
Output Voltage / Inc. 10 - 500V / 1V
Output Current / Inc. 10 - 400mA / 1mA
Max. Watt 120W
Output Type Constant Voltage or Constant Current
Control Microprocessor controller
Terminal Pairs 2 Pairs
Timer 1 - 999 minutes with alarm, continuous
Safety Device No load detection; shrouded plugs and sockets
Operation Temperature 4
℃
~ 40
℃
Unit Dimension 140 x 191 x 84mm
Construction material Polycarbonate housing and aluminum bottom plates
Weight Approx. 1 kg
Rated Voltage 100 - 240 V~, 50-60Hz, 2A

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INSTALLATION INSTRUCTIONS
Mini 500 Power Supply is actually a pre-installed instrument. As long as it is placed on a sturdy and level
surface in a safe, dry place, and further connects with well-prepared electrophoresis system, it is ready
for operation.
OPERATION INSTRUCTIONS
Control interface
You will be able to find six buttons and 4 LED indicators from the faceplate.
The LED indicates the status of the unit.
a. Setup Mode (before pressing RUN/Start)
LED light indicates your current parameter. If you are setting a value for Voltage, the Voltage LED will be
lit.
b. Operation Mode
After you start the experiment, the LED light next to the RUN/STOP button will light up to indicate unit
under operation.
1. – Select voltage value
2. – Select current value
3. – Timer button
4. – Increase the Voltage, Current or Time

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5. – Decrease the Voltage, Current, or Time
6. – Start or stop the unit
Start the operation
Note: To operate under constant voltage or constant current modes, adjust the other parameter to the
maximum value. For example, to operate under constant voltage, adjust current to max before running
using constant voltage, and vice versa.
1. Place the unit on a sturdy and level surface in a safe, dry place, away from laboratory traffic.
2. Ensure that the AC power switch is OFF, and then plug the three-pronged power cord into a
grounded three-prong AC outlet with appropriate voltage (100V to 240V as indicated on the rating
sticker near the AC cord on the back of the unit).
3. Power on the unit by pressing the ON/OFF switch.
4. Connect the DC output jacks from the electrophoresis unit; insert the red lead (+) into the red
output jack, and the black lead (-) into the black output jack.
5. Constant voltage or current
*To set constant voltage, press , the LED indicator should light up.
*To set constant current, press , and LED indicator should light up.
6. Adjust the output value by pressing the or button.
7. After adjusting your constant mode output value, switch to the other parameter and set it to
maximum.
8. Timer Setting: After setting the current or voltage output value, press the Timer button, and then
press key or key to adjust timer accordingly.
Note: When timer is set as “0”, it means continuous operation.
9. Press Key to start the run. Once the electrophoresis starts, the LED light next to the
button will light up.

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10. Press Key again to stop the unit at any time if necessary.
11. When the run is completed, Press Key to terminate a timed run, and Turn the AC power OFF
by the switch on the rear.
12. The programmed settings will be automatically saved into the system so the next time you turn it
on, the same settings as your previous experiment will be displayed.
TROUBLESHOOTING AND MAINTENANCE
Many operating problems may be solved by carefully reading and following the instructions in this
manual accordingly. Some suggestions for troubleshooting are given below. Should these suggestions
not resolve the problem, contact our SERVICE DEPARTMENT or a distributor in your region for
assistance. If troubleshooting service is required, please include a full description of the problem.
Problem
Cause
Solution
No Display /
lights
No AC power
Check if the power supply is unplugged, or AC power
source problem
AC power cord is not connected
Check AC power cord connections at both ends. Use
the correct cords.
The fuse has blown
Replace the fuse
Repeated
fuse broken Hardware failure Contact BT Lab Systems service department
Operation
stops
Electrophoresis leads are not
connected to the power supply or to
the electrophoresis unit(s), or there
is a broken circuit in the
electrophoresis cell
Check the connections to the power supply and on
your electrophoresis cell to make sure the
connection is intact; check condition of wires in
electrophoresis unit. Close the circuit by
reconnecting the cables. Press START/STOP to
restart the run.
High resistance due to tape left on a
pre-cast gel, incorrect buffer
concentration, or incorrect buffer
volumes in the electrophoresis cell
Correct the condition by making sure the tape is
removed from the pre-cast gel, buffers are prepared
correctly, and the recommended volume of buffer is
added to the electrophoresis unit.
Error
message
Over current(400mA limitation
reached)
Check if the buffer concentration is appropriate.
Excessive buffer concentration may cause over
current issue. To clear the error message, press the
START/STOP button again

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Error
message
Over voltage(500V limitation
reached)
Press START/STOP button to clear the error
message. Contact MS service dept. if the problem
persists.
Error
message
Thermal limitation reached(Output
voltage <10V)
(1) Check the connections
(2) If Er3 error message persists, the problem may
be caused by internal fan failure. Contact MS service
department.
Message
No load is detected
(1) Check the connections
(2) Check the buffer condition / buffer
level
Alarm
message
Max. watts(120W) of power reached Warning message for reference
Encountering Problems
1. Check the troubleshooting section.
2. Call Technical Service or e-mail to [e-mail]
3. If the unit must be shipped back for repair, contact BT Lab Systems or the distributor for a Return
Authorization Number and shipping instructions. The unit will be repaired and returned to you as quickly
as possible.
Replacing the Fuse
For additional fuses, contact BT Lab Systems co. ltd.
To replace the fuse:
1. Turn off the main power switch at the rear of Power Supply and detach the power cord.
2. Open the fuse compartment located inside the Power Entry Module by inserting a small flat blade
screwdriver into the slot below the ON/OFF switch. Turn the screwdriver to gently pry open the fuse
compartment.
Note: The fuse compartment will not open with the power cord in place.
3. Pull the fuse holder out of the compartment and inspect the fuse. If the fuse is burned or there is a
break in the fuse element, replace the fuse with an identical type of fuse (T3.15AH250V) as provided
in the fuse holder (see figure below).

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4. Place the fuse holder back into the compartment.
5. Snap the cover closed.
Maintenance
Mini 500 Power Supply uses all solid-state components and should require no maintenance or
recalibration under normal use. If the unit must be returned for repair, contact our SERVICE
DEPARTMENT or your local distributor for shipping instruction.
WARRANTY
BT Lab Systems warrants apparatus of its manufacture against defects in materials and workmanship,
under normal service, for one year from the shipping date to purchaser. This warranty excludes
damages resulting from shipping, misuse, carelessness, or neglect. BT Lab Systems’s liability under the
warranty is limited to the receipt of reasonable proof by the customer that the defect is embraced
within the terms of the warranty. All claims made under this warranty must be presented to BT Lab
Systems within one year following the date of delivery of the product to the customer.
TECHNICAL SUPPORT
BT Lab Systems offers technical support for all of its products. If you have any questions about the
product’s use or, operation, please contact BT Lab Systems at the following info.
E-Mail: [e-mail]