Thermo Electron SORVALL RC3BP, Руководство по эксплуатации

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RC3 BP™ Maintenance
5-1
Chapter 5: MAINTENANCE
This section describes routine maintenance procedures that should be performed on a regular basis. As
the user, it is your responsibility to make certain that these procedures are followed when necessary. Also,
to keep your centrifuge in good working condition and ensure accurate test results, we recommend that,
in addition to these routine procedures, you have the temperature control and the rotor imbalance
detector checked periodically by a
Thermo
Service Representative or other qualified service personnel
because occasionally, these controls may need to be recalibrated. If further service is needed, contact
Thermo
Service or your local representative for SORVALL
®
products.
W A R N I N G
Because of the high volt-
ages in the centrifuge, anyone who is
not properly trained in electronics
must not test or repair the electrical
circuits.
If hazardous materials have been pro-
cessed in the centrifuge, observe all
necessary precautions when clean-
ing or servicing the centrifuge to avoid
contamination.
!
Inspection and Cleaning
a. Inspection
Inspect the centrifuge each week for signs of wear, encrusted bio-
logical deposits, and general cleanliness.
b. Cleaning
Rotor Chamber
The rotor chamber should be kept clean and wiped routinely to
maintain efficient cooling. Wash the rotor chamber with a mild,
nonalkaline dishwashing liquid, then rinse and dry with a soft
absorbent cloth.
Use 70% ethanol to disinfect the rotor chamber or a 2% glutaral-
dehyde solution to sterilize it. For general radioactive decon-
tamination, use a solution of equal parts of 70% ethanol, 10%
SDS, and water. Follow this with ethanol rinses then deionized
water rinses. Dry with a soft absorbent cloth. Dispose of all
wash solution in proper radioactive waste containers.
Read
the CAUTION
.
If frost collects on the chamber walls, periodically defrost the
rotor chamber to maintain efficient cooling; frost on the inner
walls acts as an insulation between the chamber and the refrig-
erant. To defrost the chamber, install a rotor and close the cham-
ber door. Set run parameters to SPEED=2500 rpm, TIME=5:00
(longer for heavy frost buildup), TEMP=30, then press START.
After the run terminates, when the rotor comes to a stop and the
door unlocks, remove the rotor and wipe the chamber dry. The
chamber can also be defrosted by leaving the chamber door
open with the main power switch OFF until the frost melts;
wipe chamber dry.
C A U T I O N
Chlorides are extremely
harmful to aluminum alloy rotors and
can cause stress corrosion cracking.
Therefore, if chlorides are used to
disinfect the chamber, be sure to rinse
the chamber thoroughly with water to
remove all of the chloride cleanser.
!