– 4 –
Operating procedure
1. Setting the liquid volume
1) Turn the lock screw in the unlocking direction to loosen it. (Fig.A)
2) Turn the push button to set the digital counter to a desired liquid volume. To
increase the setting volume, turn the push button to pass the last set graduation
on the scale by half a turn and then set at the higher graduation as desired. To
decrease the setting volume, reset the digital counter directly at the lower gradu-
ation as desired. When setting the liquid volume, set the counter's graduation at
the point mark appearing in the lower part of the counter window. (Fig. B)
3) After setting the liquid volume, turn the lock screw in the locking direction to lock
it. (Fig. A)
Note: Don't exceed the specified liquid volume limit, otherwise the
instrument may be damaged or deteriorate in the quality.
2. Extracting liquid
1) Attach a glass tip to the nozzle.
2) Press the push button down from point "a" to the point "b". (Fig. C)
3) While depressing the push button, immerse the tip into the liquid to the extracting
volume (approximately 3 mm deep). (Fig. D-1)
4) Pull up the push button to point "a" to suck the liquid into the tip. With the tip still
immersed in the liquid, keep the instrument stationary for about 1 second to wait
untill the liquid is completely sucked into the tip. (Fig. D-2)
5) Gently extract the instrument to separate the tip from the liquid so that there are
no drops of liquid left on the outside of the tip. If there are some drops left on the
outside of the tip, wipe them off with a tissue, or the like, taking care not to touch
the tip.
Note: Don't extract liquid with the push button depressed at point "c"
shown in the Fig. C.
Note: Be careful to operate the push button very gently. If it is rapidly
released, the liquid may possibly be sucked into the main body
and pipetting may end with an inaccurate result.
3. Discharging the liquid
1) Gently place the tip on the inner wall of a proper vessel. (Fig. D-3)
2) Gently press the push button down from point "a" to point "b". Five seconds later,
press down the push button again from point "b" to point "c". The liquid is dis-
charged from the tip. (Fig. D-5)
When handling liquid harmful to humans, be careful not to touch
the tip during and after operation.
