Pharmacia LKB MultiDrive XL
Pharmacia LKB · Model MultiDrive XL
Electrophoresis power supply The Pharmacia LKB-MultiDrive XL Electrophoresis Power Supply is designed for use in combination with electrophoresis and isoelectric focusing (IEF). This power supply can control and supply the three electrical parameters voltage, current and power. The duration of the run can be controlled by setting values for the following parameters: time, hours, miliamp hours and miliamperes per hour. The Pharmacia LKB Multidrive XL Electrophoresis Programmable Power Supply can be used for analytical and preparative IEF, PAGE, SDS-PAGE, 2-D techniques, immunoelectrophoresis, DNA sequencing and blotting.
Key tips
- ·Run QC controls before trusting any repair - an analyzer that passes self-test can still report clinically wrong results.
- ·Rule out a reagent lot change before opening the instrument - it can look exactly like a hardware fault.
- ·Centrifuge rotors have a hard retirement age/cycle limit regardless of visible condition - don't eyeball it.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
No or unstable output voltage / current
HighSymptoms: Run will not start, "no load" or "leak" fault, voltage / current will not hold the setpoint.
Root cause: Power-supply output fault, a bad tank / lead connection, buffer-conductivity issue, or a cracked electrode.
Tank / lid / electrode fault
MediumSymptoms: Leaks at the tank, warped lid will not seat, broken platinum electrode wire.
Root cause: Cracked tank / lid or a broken electrode.
Imaging / gel-doc fault (imagers)
MediumSymptoms: Dark or uneven images, transilluminator / LED not working, camera not detected.
Root cause: Transilluminator LEDs / tubes, the camera, or the imaging software.
Temperature / cooling fault (capillary / large-format)
MediumSymptoms: Runs overheat, poor resolution, temperature alarm.
Root cause: Cooling fan / Peltier or a coolant fault.
PC / software fault
LowSymptoms: Runs will not program, images / data will not save or analyse.
Root cause: PC or software / license.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Power-supply output board
Class Major service partRel. cost $$R&R Moderate
Tank / lid / electrode set
Class Periodic replacementRel. cost $$R&R Fairly easy
Transilluminator LEDs / tubes (imagers)
Class Periodic replacementRel. cost $$R&R Fairly easy
Camera module (imagers)
Class Major service partRel. cost $$$R&R Moderate
Cooling fan / Peltier
Class Periodic replacementRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Power-supply output board | Major service part | $$ | Moderate |
| Tank / lid / electrode set | Periodic replacement | $$ | Fairly easy |
| Transilluminator LEDs / tubes (imagers) | Periodic replacement | $$ | Fairly easy |
| Camera module (imagers) | Major service part | $$$ | Moderate |
| Cooling fan / Peltier | Periodic replacement | $$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily QC controls run and reviewed
- ·Calibration verification per assay
- ·Routine cleaning and decontamination
- ·Scheduled reagent-path and pump-tubing maintenance
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: No or unstable output
- Confirm the buffer type / concentration and fill level.
- Check the tank leads and electrode connections and inspect for a broken electrode.
- Test the power supply into a known resistor / dummy load.
- Try a different tank to isolate tank vs supply.
- Replace the power-supply output board if it fails the dummy-load test.
Symptom: Gel-doc image or transilluminator fault
- Confirm the transilluminator / epi-LEDs light.
- Check the camera is detected and the lens / filter are correct.
- Clean the imaging surface.
- Replace failed LEDs / tubes.
- Refer the camera module if it is not detected with a good cable.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central / core laboratory
- Point-of-care testing stations
- Blood bank
- Microbiology lab
Documents & Manuals
Related calculators
From BioLab, for work done with this kind of equipment.
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