Drummond Hood Mate Pipet-Aid 300 Manual de instalación y funcionamiento - Página 6
Navegue en línea o descargue pdf Manual de instalación y funcionamiento para Equipos de laboratorio Drummond Hood Mate Pipet-Aid 300. Drummond Hood Mate Pipet-Aid 300 8 páginas.
Imprimir páginaT T i i s s s s u u e e C C u u l l t t u u r r e e F F i i l l t t e e r r * *
A two-layered membrane filter is located in the nosepiece. If an accidental
overfilling of the pipet is encountered the wetted filter will prevent air
movement in either direction thus shutting down pipetting operations.
The wetted parts should be cleaned and the filter must be replaced
with a Drummond replacement filter.
R R e e p p l l a a c c i i n n g g T T C C F F i i l l t t e e r r
Slide the N N o o s s e e p p i i e e c c e e R R e e l l e e a a s s e e toward the control buttons and twist the
nosepiece to release it from the handle. Remove the two gaskets from
the old filter and place them on the new filter. Place the filter and gasket
assembly into the nosepiece and lock into handle with a twisting motion.
C C l l e e a a n n i i n n g g H H o o o o d d M M a a t t e e
® ®
Check the rubber insert for blockage. Drummond d d o o e e s s n n o o t t u u s s e e c c o o t t t t o o n n .
If cotton gets into the rubber insert unit will not operate properly.
Unit may be wiped down with an alcohol solution or soap and water.
C C A A U U T T I I O O N N : : R R E E M M O O V V E E P P O O W W E E R R S S U U P P P P L L Y Y F F R R O O M M O O U U T T L L E E T T . .
E E q q u u i i p p m m e e n n t t M M a a i i n n t t e e n n a a n n c c e e
Inspect interior of rubber insert for broken rings. Broken or worn rings may
cause a reduction in vacuum and pressure, which will result in leakage from
the pipet. Replace as necessary.
I I n n s s p p e e c c t t t t h h e e c c o o i i l l e e d d h h o o s s e e f f o o r r c c r r a a c c k k s s o o r r o o t t h h e e r r d d a a m m a a g g e e . .
Two rubber gaskets are attached to the TC Filter. Unit will not function if
either one is missing.
Inspect Nosepiece for wear. If the nosepiece is removed without using the
nosepiece release it will damage nosepiece, resulting in a loss of vacuum
and pressure. Check the three protrusions on nosepiece for wear.
* * W W h h y y U U s s e e a a D D r r u u m m m m o o n n d d S S e e l l f f - - L L o o c c k k i i n n g g F F i i l l t t e e r r i i n n Y Y o o u u r r P P i i p p e e t t - - A A i i d d . .
In order to provide a fail-safe, one-time check valve for Pipet-Aid pipettors,
Drummond pioneered the use of a "self-locking" dual layer filter composed
of one hydrophobic membrane and one hydrophilic membrane located in
the nosepiece. With a dual layer membrane, when the filter is challenged
with an aqueous solution, the hydrophobic layer prevents liquid from
entering the handle and the wetted hydrophilic layer restricts the flow of air
which locks the Pipet-Aid from further use. When this occurs, the user must
replace the filter and clean the other wetted parts, thus protecting the
Pipet-Aid as well as the integrity of subsequent dispensing.
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