Storage
When the Hach TenSette plus is not in use, make sure it is stored in an upright position. The use of
the Hach pipette stand (Item no. BBP088) is recommended for this purpose.
Sterilization
W A R N I N G
Burn hazard. Obey safe handling protocols during contact with hot components. Wear the appropriate
protective equipment during maintenance or service activities.
The tip cone module can be sterilized by autoclaving it at 121 °C (250 °F) for 20 minutes. You can
use steam sterilization bags if needed. Disassemble and reassemble the tip cone module. Refer to
on page 15.
After autoclaving, the module must be cooled to room temperature for at least two hours. Before
pipetting, make sure that the module is dry. It is recommended to check the calibration after every
sterilization cycle.
Troubleshooting
Problem
Possible cause
Solution
Leakage
Tip incorrectly attached
Attach firmly
Foreign particles between tip and tip cone
Clean tip cones. Attach new tips.
Foreign particles between the piston, the
O-ring and the cylinder
Clean and grease the O-ring and cylinder.
Insufficient amount of grease on cylinder
and O-ring
Grease accordingly
O-ring damaged
Change the O-ring.
Inaccurate dispensing
Incorrect operation
Follow the instructions carefully.
Tip incorrectly attached
Attach firmly
Calibration altered: caused by misuse, for
example
Recalibrate according to the instructions.
Inaccurate dispensing
with certain liquids
Unsuitable calibration. High viscosity
liquids may require recalibration
Recalibrate with the liquids in question.
Not dispensing
Pistons stuck or not connected
Remove the tip cone module. Move the
piston by hand or with piston removal tool.
Attach the module in service mode.
16
English
Summary of Contents for TenSette plus
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