Counting Particle Counting Board

Model
Purpose
The model grain counter can automatically count the grains of various major food crops such as rice, wheat, sorghum, corn, etc. It is used in the grain department of the seed system of agricultural colleges and universities of the Academy of Agricultural Sciences (Institute). The seed index measurement of thousand-grain weight is widely used in China.
Main technical performance
Counting varieties
Type
(
)
Size length and width less than
mm (small particles)
(
)
Size length and width less than
mm (large particles)
Type
Size length and width less than
mm (small particles)
Counting accuracy
/
Depends on speed. (Standard deviation)
The counting speed of small particles is greater than
grains
/
minutes for large particles
grains
/
minutes
counting The capacity

is read directly by a four-digit
digital tube.
Self-calibration frequency

Preset auto-stop

Any value in it is set
and does not count.
External power supply


The power is less than
watts and the grounding is good.
Instrument Dimensions
mm.
Working environment atmospheric pressure
mmHg.
Ambient temperature
℃

℃
Relative humidity
When ℃ is less than
, the continuous use time is more than four hours.
The instrument function circuit is self-calibrated, any count is preset, the door is automatically stopped and the feeding is self-locking.
●
Instrument appearance and structure
Feeding knob
Self-calibration knob
Digital tube
Power switch
Reset count switch
Preset Setting and pulling tray
Unloading disk knob
Material tray
Fuse
Material holding door
Large particle outlet
●
Instrument operation Principle
The electromagnetic vibration box causes the seeds to be queued up and dropped into the photoelectric conversion slot one by one. The photoelectric pulsation is then amplified, shaped and inverted, and then sent to the counting circuit to display the reading on the digital tube. The preset dial switch stops feeding and counting after counting to the preset number. The instrument is equipped with a self-calibration frequency to facilitate checking the correctness of the counting circuit and preset. See the figure