Roth Mini User manual

ROTH Power Supply MINI

Manufactured by Cleaver Scientific

2907.1

WARNING:

Please read the entire operator’s manual thoroughly before operating this unit.

Warning:

Like all apparatus run by electricity these units are capable of delivering potentially lethal voltage.

They should be operated only by qualified technically trained personnel. The Roth power supplies are

designed for long term laboratory use and to obtain reproducible results. Please spend a few

moments reading the instruction manual thoroughly.

The Roth power supply series 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 power supply series

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 power supply 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 the equipment warranty.

3. Use a properly grounded electrical outlet of correct voltage and current handling capacity.

4. Disconnect from the power source before maintenance and servicing. Refer servicing to qualified

personnel.

5. Never use this instrument without having the safety cover correctly in position.

6. Do not use the unit if here 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 as 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 the electrical source according to the local and national

electrical codes. Failure to make a proper connection may create a 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.

Please verify that you received the unit completely (acc. to packing list) and without any damage. Any

faults or losses have to be reported to ROTH immediately. ROTH can not accept responsibility for

goods that were sent back without informing them.

Please retain all packaging material until the warranty period has expired.

For further information, please contact us at Tel.: 0721/5606-0.

Instructions for use

SAFETY INFORMATION

Take all necessary precautions for using 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; it must NOT touch the surrounding. Follow

the safety precautions for chemicals and dangerous materials. If needed, please contact us at Tel.:

0721/5606-0.

Environmental Conditions

Ensure the instrument is installed and operated strictly under the following conditions:

•Indoor use only

•RH ≤95 %

•75 KPa-106 kPa

•Altitude not to exceed 2000 meters

•4 °C ~ 40 °C operating temperature

•Pollution degree: 2

•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 Roth power supply series has been designed for use with insulated wires, minimizing any

potential shock hazard to the user. We recommend against the use of uninsulated wires.

To avoid electrical shock:

1. In case of spillage, any parts of the cable or power supply must be dried out for a period of time and

restored to NORMAL CONDITION before the operation.

2. NEVER connect or disconnect wire leads from the power jacks when the red indicator light of the

power switch is on.

3. WAIT at least 5 seconds after stopping a run before handling output leads or 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 damaging the unit.

5. Do not operate the unit out of environmental conditions addressed above.

6. Do not operate the power supply in high humidity environments (> 95%), or where condensation

may occur.

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.

Maintenance

The ROTH power supplies require little maintenance to ensure reliable operation. The housing may

be cleaned with a dry cloth.

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.

Symbols

The following symbols are used on the power supplies:

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.

Caution/ Warning: Indicates a hazardous situation which, if not

avoided, could result in death or serious injury.

Max. voltage: 500 V

Max. current: 400 mA

Max. watt: 120 W

Encountering Problems

Check the troubleshooting section.

Call Technical Service under 0049 721 5606-0

If the unit must be shipped back for repair, contact Carl Roth GmbH + Co. KG for shipping

instructions. The unit will be repaired or replaced as quickly as possible and returned to you.

Contact: Phone 0049 721 5606-0; Fax 0049 721 5606-149; [email protected]

All Roth products available for delivery have undergone rigorous quality controls.

PACKING LIST

No. Items

Description

Power Supply

Power Cord

Instruction Manual

DESCRIPTION

Combining small size and versatility, the newly redesigned Roth power supply MINI is an ideal choice

for any researcher. Capable of providing constant current or constant voltage in 1 mA or 1 V steps,

the microprocessor controlled 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 Roth power supply MINI 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 Roth MINI is also designed and constructed to the most rigorous safety standards. This

makes it an excellent choice for education or personal use.

FEATURES

Compact size

Power capacity

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

New polycarbonate housing and aluminum bottom plates; new exterior design

Roth MINI

120W, 400mA, 500V

Front view

ON/OFF

Switch

Fan

Rear view

Main power socket

& Fuse holder

TECHNICAL DATA

Roth Power Supply series

* Step 1: 300 V / 16 mA / 30 min

Step 2: 300 V / 24 mA / 240 min

If voltage, current and time set 0 in step 2, system will not proceed to step 2.

INSTALLATION

ROTH power supply MINI 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.

Type

MINI

STANDARD

BLOT

Model

nanoPAC-300P

PowerPro300

PowerPro3AMP

Voltage (V)

10-300

5-300

Max. intensity of current

1-400 mA

1-700 mA

10-3000 mA

Max. output power

60 W

150 W

300 W

Timer

1-999 min.

Volt-hours

49,995 kVh

Display

LED

2,4“ TFT

Resolution

1 V, 1 mA

1 V, 10 mA, 1 W

Type of output

Constant V or mA with automatic crossover

During constant mode not adjusted parameters are

automatically set to maximum

Programs

Manuell adjustable mode (Constant Mode)

2-step program

editable

30 programs, each with up to 6 steps editable (Program

Mode)

2-step program, pre-

assigned*

Pre-assigned programs for different applications (Typical

running condition Mode)

Outlets (parallel socket

pairs)

2 (4 mm)

5 (4 mm)

Min. load resistor

5 Ω

3 Ω

0,1 Ω

Safety detections

No load

Over load

Over temperature

No load

Over load

Leakage

No load

Over load

Leakage

Protection

Over temperature

Automatic recovery after

power failure

Yes

IQ/OQ Protocols

Yes, optional

Ambient temperature

4-40 °C

Regulatory

CE, ETL, FCC

CE, ETL

Dimensions (cm)

14 x 19,1 x 8,4

21,5 x 33,5 x 10,4

Weight

1,0 kg

2,1 kg

Rated Voltages

100-240 V, 50-60 Hz,

2,5 A

100-240 V, 47-60 Hz,

200 W

100-240 V, 47-60 Hz,

410 W

CONTROL INTERFACE

You will be able to find six buttons and 6 LED indicators from the faceplate.

The LED indicates the status of the unit.

Lighting Indications

LED light indicates operation condition while running.

–Indicates the setting mode of voltage

–Indicates the setting mode of current value

–Indicates the setting mode of time

Button Functions

1. Before operation, press “MODE” to set the parameters of “Voltage”, “Current”, and

“Time” of Step 1 and 2. LED light indicates your current parameter. For example, if you are setting

a value for Voltage, the Voltage LED will be lit.

2. Two step buttons are available for you to select the step and to check the

parameters of voltage, current and time of each step. User will press “STEP 1” and “STEP 2”

buttons mainly to switch between two steps.

3. –Increase the value of current parameter.

4. –Decrease the value of current parameter.

5. –Start or stop operation.

nanoPAC-300P

-------------

OPERATION

1. Place the power supply 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 of the appropriate voltage (100 V to 240 V 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.

One-step-program

Set all the parameters of STEP 2 to zero, system will run STEP 1 without proceeding to STEP 2.

Constant voltage or current

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 constant voltage, and vice versa.

1. Adjust the output value by pressing the or button.

2. After adjusting your constant mode output value, switch to the other parameter and set it to

maximum.

3. Timer Setting: After setting the current or voltage output value, press “MODE” to switch to time

setting mode, then press key or key to adjust timer accordingly. The run ends

automatically when the timer runs out. The run ends automatically when the timer runs out.

Note: Setting 0 will result in a continuous run.

4. Press Key to start the run. The LED light will light up.

5. Press Key again to stop the unit at any time if necessary.

6. During a timed run, the alarm will sound upon completion. Press Key to

reset the alarm.

7. After finishing the run turn the AC power OFF by the switch on the rear. 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.

TROUBLE SHOOTING

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 us at Tel.: 0721/5606-0 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 Mini power supply is unplugged,

or if there is an 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 our 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 tank

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 tank

Correct the condition by making sure the tape is

removed from the pre-cast gel, that the buffers are

prepared correctly, and the recommended volume

of buffer is added to the electrophoresis unit.

Error Message

Cause

Solution

Current exceeds the

maximum output for the

power supply (>400 mA)

Check if the buffer concentration or molarity is

appropriate. Excessive buffer concentration or

molarity may increase conductivity. To clear the error

message, press the START/STOP button.

Voltage exceeds the

maximum output for the

power supply (>300 V)

Press the START/STOP button to clear the error

message. Contact our service department if the

problem persists.

Thermal limitation of the

power supply reached

(Output voltage <10 V)

(1) Check the connections

(2) If the Er3 error message persists, the problem

may be caused by internal fan failure. Contact our

service department

No load is detected

(1) Check the connections

(2) Check the buffer condition / buffer level

Power exceeds the

maximum output (60 W)

Warning message for reference

ROTH Power Supply MINI 2907.1 1 unit

Carl Roth GmbH + Co. KG

Schoemperlenstraße 3-5 • 76185 Karlsruhe • P.O. Box 100121 • 76231 Karlsruhe

Phone: +49 (0) 721/ 5606-0 • Fax: +49 (0) 721/ 5606-149 • info@carlroth.com • www.carlroth.com

The company is a limited partnership with headquarters in Karlsruhe, reg. court Mannheim HRA 100055. Roth Chemie GmbH, with headquarters in Karlsruhe,

reg. court Mannheim HRB 100428, is the personally liable partner. Managing Director: André Houdelet. Sales tax identification number: DE 143621073. ed 09/2021

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