It enables accurate measurement even culture media
with unclear colonies or uneven thickness.
Uniform light source solves slight difference between culture
medium and colonies.
Necessity of uniform light source over the whole petri dish.
In order to measure accurately, it is necessary to have hardware with even light source and
adjustment by software even culture medium has uneven conditions.Uniform light source can be
performed both hardware and software aspects.
High accurate measurement can be achieved by calibrating
brightness of culture medium which has uneven thickness.
Even light source in
90 Ø Petri dish
exposed to both
brightfield and darkfield.
Left: Inclination can be seen
on the background
image with monochrome
conversion.; Right: Background of
monochrome image with
calibration can be
processed by software.
Counting accuracy of colonies with different quantities
Under the same measurement condition, accurate counting can be
achieved regardless of colony quantities.
Colonies with approx.
50 units
Colonies with approx.
200 units
Colonies with approx.
1000 units
Colonies with approx.
4000 units
Moreover, accurate counting can be achieved
even if there is residue or a sedimentation.
But depends on colony, in some case, accurate
counting may not be possible.
High accurate counting can be achieved with
various colony quantities
Measurement functions
when there is a residue
or a sedimentation
Measured by difference
between a colony and other
features
It enables to measure if there is
difference of colony, residue,
sedimentation, size, brightness
and color.
Automatic delete function for a
widespread colony
Unclear part can be removed from your designated
area by PC's mouse.
Removed part woud be converted into area
calculation.
Manual adjustment for
measurement result
Automatic calculation with
manual adjustment
Specify the size and range of target
colony.
Area that needs to be checked by
human can be added or deleted by
manual mode. Combination of
automatic and manual is possible.
Measuring result can be
displayed or transferred to
Excel file.
In a default setting, Petri Dish No, the number of
colonies and the measurement area will be
displayed on a software.
Measuring result can be transformed to Excel
sheet or CSV file.
Display on the software
Display in Excel Data File
Standard software can be managed various kind of
specimen like circle, rectangle and spiral type.
Overlap differentiation function
Spiral measurement function
Spiral measurement function
Standard software includes spiral colony
measurement.
Any kind of spiral plater can be used by changing the
area freely and it corresponds to 2 patterns (Ring
type and Spiral type).
A ring type can output the number of colonies and
spiral type can output cumulated colony within
measurable area.
Adjustment function for
uneven brightness
Even uneven thickness of culture medium
can be adjusted brightness and measure
with high accuracy.
Selective counting function
by size
Due to selecting counting function by size, it
enables to remove scattered colonies and
count.
Separate measurement
by color extraction
Up to four types of colonies can be
measured separately in different colors.
Functions
Common features of PSF-1000/ PSF-2000
Measurement result indicator
Bacteria Colony: Number of colony, measurement area
Binarization methods selection
Manual binarization, Binarization by color extraction
Preprocessing for binarization
Adjustment of uneven brightness (in case of uneven thickness of culture medium)
Offset
Offset of binarized colony
Selection by size (Options available)
Decide the range of target colony depending on colony size
Overlap differentiation
Automatically separate and measure overlapping colonies
Save process
Save process for each colony specimen recipe
Manual deletion function
Manually designated area deletion of colonies or dimension by a mouse
Manual calibration measurement
After automatic counting, if colony counting has error,
it enables to calibrate manually adding or removing
Image saving
Original image, image with counting mark
Spiral counting
Counts the number of colonies by the spiral method
Data output/ saving
Output to Excel sheet/ save in a CSV format
Recalculation
Recalculation by retrieving saved images
Regular inspection function
For validation of the equipment, manual calibration is not allowed in the measurement
Japan's top Automatic Colony Counter with
wide variety of measurement cases.
General viable bacteria
Normal agar media, general viable bacteria, all colony counting in the
measurement area
Lactic bacteria
All colony counting with a petri dish cover
If condensation has small mist, it enables to measure with
cover.
Mutagen testing (Ames)
If the number of colonies increases or decreases, it
enables to count accurately on the same setting
regardless of the number of colonies.
Food industry and food distribution industry
Measurement of general viable bacteria (All colony counting
in the measurement area)
Pharmaceutical industry
It enables to measure colony, inhabitation zone in one
device.
Water Analysis industry
Desoxycholate medium, Original image of coliform bacteria
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