The first revision of belt scale standard is on December 1,1995.Among them,the definition,terminology,type,performance and technical requirements of belt scale are all recorded in detail.The determination of belt scale standard lay the foundation for the large development of the whole industry,and win with the world and synchronous development opportunities at the same time.There is a certain national standard specification of belt scale,design and manufacture of products has make a spurt of development progress.

In everyday use,the maintenance of belt scale is a quite technical content,which requires the user to see details of the instruction manual,and make the relevant maintenance work in everyday use,in order to make the service life and accuracy of belt scale best.

Users should always observe and calibrate the interval and zero of belt scale,in the instructions for use,all are recorded in detail.When belt scale is under normal use,if the flow is no longer displayed,the problem may be caused by more than one fault.

Firstly,you need to check,when the belt is in normal work,the meter does not show the flow,the largest probable obstacle is that the speed signal has obstacle.

Secondly,whether the excitation voltage of the speed sensor is the normal value,voltage of host board take 9 and 11 voltage,and whether is +24 volts,if yes,it is normal.

Finally,detect whether the signal cable is normal,it is probably because of its open.