Operating Instructions; Fine Adjustment; Safety Precautions; Maintenance/Cleaning - JENCONS ZIPPETTE Manual Del Operador

Fine Adjustment

The figures quoted on our Test Certificate apply to the calibration of the Zippette at full volume. The
Zippette adjustment cap enables the user to fine calibrate for accuracy. Using the adjustment disc tool
that is held on the rear of the Zippette body, change the factory calibration by turning the slot on the
printed top cap insert:-
Anti-clockwise to increase volume
Clockwise to decrease volume
The graduations on the adjustment ring increase
or decrease by the following volumes:-
Zippette 50ml 0.1ml per line
Zippette 30ml 0.1ml per line
Zippette 10ml 33µl per line
Zippette 5ml 17µl per line
Zippette 2.5ml 8µl per line

Safety Precautions

Use the utmost caution when dispensing caustic, radioactive or hazardous chemicals.
1 Follow safety regulations (eg. protective clothing, goggles etc.)
If in doubt, consult your safety officer.
2 Follow the operating instructions.
3 Only use the instrument for its proper purpose and within the limits of its materials. If in doubt,
please consult the manufacturer/distributor.
4 Regularly inspect the instrument for leakage. Before use it is sensible to check connections.
5 Do not use force. Damage to parts may cause leaks.
6 The temperature of the instrument and reagent to be dispensed must not exceed 40°C.
7 Please note,
(i) only the manufacturer's original parts must be used.
(ii) materials coming into contact with the liquid to be dispensed are, borosilicate glass, PTFE,
Alumina ceramic, FEP, PVDF and Platinum Iridium.
6
Operator Instructions

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 is completely empty and turn the anti-drip tap to 'Open' position.
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 tap-
ping 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 syringe contents into the reservoir.
4. Flush out remaining syringe 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.
Autoclaving
Steam sterilization 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. Steam sterilize the unit in
its assembled status but with the threaded ring completely loosened. Steam sterlization 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 can be
soaked overnight in a dilute (1:1000) solution of
Sodium Hypochloride. (See page 8 for disassembly
procedure).
Unit ready for
steam sterilisation
with threaded
platform ring
completely loosened
Cursor locked
in centre of
adjustment
slot
Threaded
ring
Operator Instructions
7