4
Pipetting
To aspirate
1. Carefully hold the pipette and insert it securely into the polypropylene nose
cone and silicone holder.
2. Select mode of operation — High, Low, or ‘G’.
3. Depress upper trigger (1) (The harder the pipetting triggers are pressed the
faster the aspiration.)
To dispense
1. In BLOW-OUT mode, (mode switch high or low) depress the lower trigger
(2) (The harder the pipetting triggers are pressed, the faster the dispense).
2. If ‘G’ gravity mode is chosen, the upper aspirate trigger automatically oper-
ates at low speed while the lower trigger opens the pipette to atmosphere,
allowing liquid to run out.
WARNING!
Please ensure that no liquid enters the instrument. GlassMaster should never
be used without the filter (8). The filter also prevents liquid from entering the
instrument. Where liquid has entered please clean and replace filter.
Trouble Shooting
GlassMaster is virtually service-free. If the recommendations above do not
resolve the problem, please contact your authorized dealer.
TROUBLE
POSSIBLE CAUSE
REMEDY
Suction capacity slow
Filter blocked, dirty or damaged
Clean or replace
membrane filter
Batteries low
Recharge
Pipette drips
Pipette not securely positioned
Re-attach
in silicone pipette
holder
Pipette holder or pipette damaged Replace
9920-226 Rev B 8/24/00 4:44 PM Page 5
