Structure and Principle

 It’s made up of piezoelectricity crystalloid ( dipole ) , electronic circuit and detecting tuning fork . After turning on the power , materials haven’t reach detective tuning fork , while electronic circuit and piezoelectricity dipole produce a shake of a certain frequency and let the fork shake . At this moment , relay in the position measuring meter close switch , the junction output signal showing that material doesn’t reach the fork . When reach tuning fork , because of the effect of resistance , the fork stops damp shaking , then relay sets free and position measuring meter output the reaching signal .There are two sets of convert junction supplying for outside sound and light signal or external control .

Main technical indicators 

1．power supply 220V AC ±10% ; specific spec ( 110V AC , 24V DC label in the indenture )
2．adjustable act delay 3-10 seconds
3．working temperature : detector –40℃―+120℃ ; electronic circuit -40℃―+60℃
4．specific gravity of measured material is more than 0.1
5．length of detector : tuning fork 175mm

Installation

 Piezoelectricity dipole position measuring meter can be installed horizontally and vertically . It’s required that the hole’s location on the storage should be decided according to installation requirements , detective tuning fork of position measuring meter should be efficient to detect materials and can avoid direct impact of materials . We seal aΛ-structure block on the storage to envelop detective tuning fork .Length and width of block should be enough to envelop tuning fork and prevent it from direct impact of materials .

Use

Wiring diagram is shown below . The measuring meter has been adjusted before coming out of factory , you can select suitable delicacy for different materials by adjusting the potentiometer on the circuitry board , thus it stops the materials when reach the detective tuning fork , shakes again when materials break away . When it is used in the storage with shakes , you can adjust steady potentiometer in order to restrain the interrupt from outside and make the indication much veracious . The detailed adjusting method refers to the introduction on the cover inside the box of position measuring meter.

Attentive proceeding

1．This meter is not sensitive to glutinous materials and not suitable for those are easy to deliquesce or agglomerate .
2．Hold the body of cylinder and the sections with flange when you move the meter , and don’t hold the fork to lift and pack .
3．Because it uses drooping position measuring meter , please use steel wire to sling and install don’t use its own join thread as a sling .