DIGISYSTEM DSC-103SD User manual

DIGISYSTEM LABORATORY INSTRUMENTS INC. www.digisystemlab.com REV.2-2022
Instruction Manual for Digital Micro Centrifuge DSC-103SD with rotor MAR-24
Control panel
Warnings:
* Do not open the lid before the centrifuge stops completely.
* Do not remove the centrifuge during operation.
* Do not put objects on the top of the lid.
* Do not disassemble the centrifuge by yourself. In the event of a malfunction, the centrifuge should be
repaired by a qualified technician. Before repairing, turn off the power.
Steps:
1. Place the centrifuge on a flat surface. Plug the centrifuge into a properly grounded outlet. Turn on the
power switch. The power indicator on the switch is illuminated.
2. Push the button , and then the screen is illuminated. Press the button to open the lid. The
screen shows icon “door”.
3. Use your two fingers to hold the “Rotor cover head” as shown in” Figure 1” and use
your thumb to press down on the center of “Rotor cover head”, and then lift the
cover. Set an even number of test tubes into the rotor in a symmetrical position.
4. Put down and press down the lid. Make sure the lid is closed well. The icon “door”
will disappear on the screen.
5. Push the button , the speed value is flash one the screen. Push the button or or
Lid
Emergency bar
Power switch
Figure 1
Rotor cover head
for Rotor MAR-24
Rotor MAR-24

DIGISYSTEM LABORATORY INSTRUMENTS INC. www.digisystemlab.com REV.2-2022
to set the speed value. Push the button or any other function button to enter the speed value.
When you setting the RPM value, you can monitor the RCF value on the RCF/TIME display screen.
6. Push the button , the time value is flash on the screen. Push the button or or
to set the time value. Push the button or any other function button to enter the time value.
7. After setting parameters, push the button to start the centrifuge. During operation, you can push
the button to stop the centrifuge. During operation, you can push the button to switch the
remaining time or RCF value on the RCF/TIME display screen.
8. Push the button to start the centrifuge directly. Release the button and the centrifuge will stop
immediately. The centrifuge will run to the current speed setting value.
9. Under the conditions of power failure or the open function failure, please insert the “Emergency Bar”
into the hole at right hand side of centrifuge to force the lid open.
Maintenance and care:
1. Keep the centrifuge clean all the time. Cleaning can be done with a damp cloth. Avoid the use of
solvents as they may damage the product housing, rotor.
2. Check if the rotor is in the center. In case, the rotor is slanted. Stop using machine and contact the
distributor for repair.
Circuit Diagram:

DIGISYSTEM LABORATORY INSTRUMENTS INC. www.digisystemlab.com REV.2-2022
Service Manual
Troubleshooting Guide
Caution: Always disconnect the power cord before troubleshooting.
Trouble / error message
Cause
Remedy
Motor doesn’t work
(Error message : Er-P)
1. Speed sensor is defective.
2. Motor is defective.
3. Motor driver PC board is defective.
4. Carbon brush is worn out.
1. Contract the distributor for repair.
2. Contract the distributor for repair.
3. Contract the distributor for repair.
4. Contract the distributor for repair.
Motor is overshooting.
(Error message: Er-E)
1. Speed sensor is defective.
2. Motor is defective.
3. Motor driver PC board is defective.
1. Contract the distributor for repair.
2. Contract the distributor for repair.
3. Contract the distributor for repair.
Lid open error.
(Error message : Er-d)
1. During operation, the lid is open.
1. Waiting for the motor stop
completely. And close the lid.
Speed value is not correct.
(Error message: Er-r)
1. Speed sensor is defective.
2. Motor is defective.
3. Motor driver PC board is defective.
1. Contract the distributor for repair.
2. Contract the distributor for repair.
3. Contract the distributor for repair.
Error message: run
1. When the motor is rotating, push
the button .
1. Waiting for motor stop completely,
and then push the button ,
and then close the lid to restart the
centrifuge.
No display on the screen
1. Power is off.
2. Dead power output。
3. Burnt fuse
4. PC board is defective.
1. Turn on the power.
2. Change to a different output.
3. Replace a new fuse.
4. Contract the distributor for repair.
Burnt fuse
1. Fuse is wasted
2. Motor is defective.
3. PC board is defective.
1. Replace a new fuse.
2. Contract the distributor for repair.
3. Contract the distributor for repair.
Lid can’t be open
1. Lid lock is defective.
2. PC board is defective.
3. PC board is crashed.
1. Contract the distributor for repair.
2. Contract the distributor for repair.
3. Turnoffthepower,andturnonthe
poweragain. Push thebutton to
openthelid.
The rotor is slanted
1. Motor mount is worn-out.
1. Contact your distributor for repair.