General Maintenance; Maintenance/Cleaning; Sterilising/Autoclaving - VWR Zippette Classic 2,5 ml Mode D'emploi

ZIPPETTE CLASSIC

General Maintenance

Maintenance/Cleaning

Note; All maintenance should be carried out wearing suitable eye protection and protective clothing. If in
doubt, consult your safety officer.
1. Make sure that the Zippette
2. Place the instrument into an empty sink together with its reservoir. Unscrew the threaded platform base
from the reservoir and lift the dispenser's intake tube carefully out of the reservoir, whilst tapping it
against the reservoir's aperture to shake off any droplets from the intake tube.
3. Hold the dispense tube nozzle over the aperture of the reservoir and apply gentle piston strokes in order
to return any glass barrel contents into the reservoir.
4. Flush out remaining glass barrel contents with distilled water or a suitable solvent. This will preserve the
smooth action of the piston and free action of the inlet and outlet valves. If the inlet valve does stick and
is not freed by flushing, it may be freed by gently inserting a thin rod into the inlet aperture and gently
pushing the ball off its seating. Re-check unit for operation.
5. Empty the instrument completely after cleaning, and flush through with distilled water.

Sterilising/Autoclaving

Autoclaving is permissible at 121 °C 2 bar
after the normal cleaning procedure is carried
out. The cursor should be locked in the centre
of the adjustment slot before autoclaving.
Place the instrument on a cloth in order to
avoid contact with metal surface. Autoclave
the unit in its assembled status but with
the threaded ring completely loosened.
Autoclaving of the piston outside the glass
barrel will damage it. Cool slowly back to
ambient temperature before use.
Chemical sterilisation
The fluid path components of the Zippette
Classic can be soaked overnight in a dilute
(1:1000) solution of sodium hypochlorite. (See
page 9 for disassembly procedure).
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VWR INSTRUCTION MANUAL
Classic is completely empty and turn the anti-drip tap to 'Open' position.
threaded platform ring
completely loosened
Threaded ring
Anti-drip tap
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EN
Unit ready for
autoclaving with
Cursor locked
in centre of
adjustment slot