Drop / Bubble Counter
5
Attach the alignment adapter to the Counter:
Part screw the Pozidriv pan-head screw supplied into the mounting thread between the
two ridges in the centre of the Counter.
Slide the mounting arm of the adapter behind the screw head.
Gently tighten the screw, do
not
over tighten.
Screw the support rod into the appropriate
mounting thread (there is a choice of three
positions) and clamp to a stand. Make sure the
Counter is level and the LED indicator is visible
to the user.
Position the reagent reservoir in the alignment adapter
Locate the tip of the reagent reservoir into the hole
that has ‘target marks’ around it. When correctly
seated the tip will be visible below the adapter plate.
Use a clamp to support the body of the reservoir. Do
not over tighten. Check the reservoir is vertical.
The drops produced will fall through and cut the infrared
beam without further adjustment.
If the reagent reservoir and alignment adapter are not used
There is an indented line on the housing of the
Counter (above the emitter and receiver). The
dropper should be aligned so that falling drops
will cut through an imaginary line drawn
between these indents. Use the LED to help
align the drops, it will blink each time a drop
interrupts the beam.
Calculating which Volume range to use
The Drop / Bubble Counter can be used record data directly as a volume (in cm
3
)
measurement by selecting one of the preset calibrated ranges - 23 drops/cm
3
, 24 drops/cm
3
,
25 drops/cm
3
, 26 drops/cm
3
,
27 drops/cm
3
, 28 drops/cm
3
and 29 drops/cm
3
.
Drop / Bubble Counter
Pozidriv panhead screw
Zero button
Alignment adapter
1
2
3
Reagent
reservoir tip
Hole with target marks
Imaginary line
