Bio-rad Model 2110 Fraction Collector Manual do Utilizador descarregar pdf (Página 23)

Section 9

Cleaning and Maintenance

The Model 2110 Fraction Collector requires very little maintenance to

insure reliable operation. Two procedures are outlined below.

9.1 Drop Sensor

The Model 2110 Fraction Collector counts drops through an optical

sensor located in the drop area inside the drop former arm. Precipitates or

other foreign debris may obscure the optical path and cause erroneous

drop counts. To prevent this problem, the drop sensor should be cleaned

periodically. An ordinary cotton swab moistened with water can be used

to clean the sensor.

9.2 Instrument Case, Carousel, and Drainage Tube

During normal operation, spills and splashes may result in precipi-

tates forming on the case and carousel. Use a squirt bottle and soapy water

to wash down carousel and case. The water will drain out the back of the

unit through the drainage tube. Prior to squirting the instrument case,

make sure the rubber seal around the gear device is in place. Insure that

the waste tube is draining properly to avoid instrument damage.

Section 10

Troubleshooting

Problem Cause Remedy

Drops miss tubes Carousel misaligned Reposition carousel

Drop former missing Replace drop former

Drop head misaligned Align

Unit not level Place unit on level surface

Drops miss tube Flow rate greater Reduce flow rate

during advance than 5 ml/min

Drops not counted Drop sensor is dirty Clean drop sensor

or E08 error code

Flow rate greater than Use Time collection mode

5 ml/min

Operating in a windy Try relocating unit, or put

environment a piece of tape over slot in

drop arm

No power Fuses Check fuses, replace if

necessary

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Bio-rad Model 2110 Fraction Collector Manual do Utilizador Página 23