Working theory: The seeds are arrayed and sent through electromagnetic vibrating box, then it drops into photoelectronic convertor and photoelectronic pulse is formed. Later it is sent into counting circuit and LED digit tube display the value. Pre-set please use disc switch. When the counting number reaches the pre-set value, the instrument will stop feeding and counting. Self-adjusted frequency is set for checking the accuracy of circuit and pre-setting.

PME Mode

dimension: length× width less than 12×4mm small granule (2) dimension: length× width less than 12×10mm (large granule)

PME-1 Mode

dimension: length× width less than 12×4mm small granule

Accuracy±4/1000 according to the speed (standard deviation)

Speed: for small granule 1000/3min; large granule 500/3min Volume: 19999 read by Four LED digital tube directly

Frequency: f=1~2HZ f=10~20HZ Pre-set self-stop: 19999, wont count 0000

Power: 220~±20V~50HZ,

capacity less than 20W Working environment:

atmospheric pressure: 750±30mm Hg columniation

Environment temperature: 0~40 Relative humidity: 20 less then 80%

Continous working time: more than 4 hours

Function: adjust automatically, count at any point, pre-set stop, self-lock