Maintenance And Trouble-Shooting; Maintenance And Cleaning; Cleaning; Maintenance Of The Illumination Unit - Sartorius Stedim Biotech CERTOMAT BS-T Mode D'emploi

3.6

Maintenance and Trouble-Shooting

3.6.1 Maintenance and Cleaning

Except for necessary cleaning, the replacement of
defective fuses and checking of the shaking drive belt
the CERTOMAT ® BS-T is maintenance-free. If the
optional illumination unit is installed, you can replace
defective lamps. All bearings of the shaking drive are
lubricated for their lifetime. The drive motor is a service-
free brushless motor of external rotor type.
Disconnect the mains cable from laboratory grounded
socket before cleaning and/or maintenance and service.
Unintended starting of the shaking drive during
cleaning and maintenance can cause personnel hazards.
•
Maintenance and service of the shaking drive, such as
the replacement of the drive belt, service of the electrical
and electronic equipment or of the optional cooling
devices must only be done by qualified and authorized
service personnel.

3.6.1.1 Cleaning

1. The interior incubation room consists of stainless steel.
For cleaning, we recommend usual household cleaning
agents or alcohol. Do not use aggressive cleaning
agents. Chlorous (hypochlorite) agents, for instance, can
cause corrosion.
2. After incubation of living microorganisms and cells the
CERTOMAT ® BS-T may need to be disinfected. For
disinfection we recommend disinfectants based on
alcohols, such as Sartorius Stedim Biotech GmbH
Meliseptol ® , see ordering information in the supplement.
After cleaning and disinfection with such agents you
should thoroughly dry and ventilate the incubation
room.
Remove broken glass, spilled liquids and impurities
immediately after they occur.
3. The spillage tray integrated in the bottom of the
shaking box can be removed for cleaning purposes.
4. Take care that no foreign bodies can enter the air-
circulation system. Remove dust from the outer covering
grids of the built-in ventilator and of the refrigerator
regularly.

3.6.1.2 Maintenance of the Illumination Unit

•
Maintenance is confined to the checking for and
replacement of defective fluorescent lamps and device
fuses. If other malfunctions occur, please contact your
service representative of Sartorius AG.
1. Switch-off the illumination unit and disconnect from its
mains supply.
2. Pull the defective fluorescent tube out of its holder.
Insert the new tube. On delivery commercially available
fluorescent tubes „L18W/77 (Fluora)", or fluorescent
tubes according to the customer's specifications are
installed.
3. Replace defective fuses, if necessary. The fuses are
placed in a fuse assembly behind the door at the right
hand side panel. Note to use the same type/size for
replacement, as delivered from factory side.

3.6.2 Malfunction Correction

3.6.2.1 Electrical Malfunctions

1. If the BS-T does not start, check the mains supply. The
mains cable should be properly connected and the
laboratory mains are operative. If other devices in the
laboratory are malfunctioning at this time, a mains
failure (such as voltage fluctuations) can be the cause.
2. Check the fuses. They are located in an insert inside the
cabinet, behind the right side panel. A burned-off body
or a melted wire will indicate a defective fuse. For
replacement note the correct voltage/current of the
fuses.
•
If the BS-T cannot be started although the mains supply
is operative and the fuses are in good condition, contact
your service representative of the Sartorius AG. You will
find the telephone number on the next page.

3.6.2.2 Malfunctions of the Shaking Drive

•
If the shaking drive runs noisy or irregularly the belt can
be dirty. If the tray support does not turn although the
shaking drive is working (you can hear the motor run),
the drive belt may be damaged. If the motor is
inoperative although the power supply and all necessary
adjustments are available, the motor may be damaged.
1. For checking the belt drive the tray and tray support
must be disassembled. Unscrew the 4 mounting screws
in the centre of the tray support and remove the table.
You can check the belt through the opening in the cover
of the drive.
2. If you mount the shaking table again, please carefully
tighten the screws again.
•
If the drive belt is damaged (torn) or the motor is
suspected to be defective, please contact your service
representative of the Sartorius AG, see below.
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