Safety Information; Package Contents; Installation; Restriction Of Use - VWR Zippette Classic Manual De Instrucciones

ZIPPETTE CLASSIC

Safety Information

‒ When using the instrument, take into consideration the chemical
compatibility of the materials in contact with the liquid.
‒ Never leave the Zippette Classic on your work bench with the piston
barrel full of liquid without moving the dispense anti-drip tap into
'Closed' position.
‒ Always check that the dispense anti-drip tap is in the 'Open' position
before attempting to dispense.
Tap open
Tap closed

Package Contents

‒ Zippette Classic bottle top dispenser
‒ Three adaptors 38 mm, 40 mm and 45 mm
‒ PTFE inlet tube
4 vwr.com | Instruction manual

Installation

Restriction of Use

NEVER use the Zippette Classic with:
‒ Liquids which are not compatible with PTFE, PVDF, FEP, borosilicate
glass, alumina ceramic or those which may attack platinum-iridium
‒ Hydrofluoric acid
‒ Liquids which contain solid particles
Temperature limits of Zippette Classic and reagent are 15 °C to 40 °C

Before Using the Zippette Classic

Check that the instrument has not been damaged in transit.

Assembly

The Zippette Classic is packed with the dispense tube attached and the inlet
feed tube removed. The 300 mm length of PTFE inlet tube provided should
be trimmed to fit your particular reservoir. The bottom end should be cut
diagonally at a length that is close to the bottom of the container when the
Zippette Classic is assembled to the container.
The threaded platform base of the Zippette Classic has a 30 mm screw
thread for use with the recommended squat amber reservoir 1.4 litre with
side filler neck, see page 6 for ordering details. The assembled Zippette
Classic is screwed onto the reservoir using gentle hand torque applied to the
Zippette Classic's threaded platform base only. Removal should also be by
means of hand torque applied to this same base.
Do not operate the piston until the unit is safely and fully mounted on the
reservoir bottle.

Specification

Accuracy ≤±0.3% on maximum delivery and a precision ≤0.1%CV using
distilled water at 20 °C.
Testing takes place according to DIN EN ISO 8655 using maximum
nominal volume of distilled water at 20 °C, with a uniform and smooth
dispense action.

Instructions for Use

OPERATING INSTRUCTIONS

Priming Reservoir

It is recommended that you use the VWR squat anti-tip reservoir with
safety side fill neck, available in 1.4 litre and 2.5 litre capacities, see page 6
for ordering details. Fill the reservoir to approximately 50 mm below side
neck aperture.
Place a container under the Zippette Classic dispense tube (14). Move the
cursor (6) to the bottom of the scale to enable free movement of the piston.
To move the cursor, simply press the button (7) on the cursor sideways and
slide up or down. The cursor will lock automatically into position as soon
as you release the button. Prime the unit with a few gentle up and down
strokes, taking the piston right down and lifting it up about 25 mm. Repeat
until steady, bubble free flow is dispensed.

Dispensing

After priming, the piston (4) should be left in the fully down position.
To dispense a precise volume of fluid, adjust the cursor (6) so that the
cursor line aligns to the volume required. Draw in the required volume of
fluid by lifting the piston slowly until the stop. To dispense, push the piston
assembly down fully, slowly, until it stops, allowing the liquid to be collected
in an appropriate vessel. When the Zippette Classic is not in use it is
recommended that the anti-drip tap is closed.