Self calibration belt scale

       The three-bridge self-calibrating belt scale adopts Sammo's proprietary standard material stacking calibration technology to solve the world difficult problem of the belt scale which is difficult to calibrate in kind for many years. It can realize the automatic weighing of the belt scale on the existing belt conveyor at low cost. calibration. 

¡¡¡¡Electronic belt scale in the wide range of applications at the same time, its calibration is facing difficulties, electronic belt scale calibration methods are many: electronic calibration, hanging code calibration, chain code calibration, cyclic chain code calibration and physical calibration, in which the highest physical credibility of calibration , But the physical calibration device high cost, large footprint and other shortcomings to the use of this calibration method caused great difficulties. 
Research and practice shows that the main factors affecting the accuracy of the belt scale belt tension, a belt conveyor covered with all the material when the accuracy of the most accurate belt scale calibration. The existing codes, chain codes and chain codes are only calibrated within a short length of the whole length of the belt conveyor. The calibration results differ from the actual weight of the material. The accuracy of the calibrated measurement has been affected by a considerable number of users Of the question. Only when the entire belt conveyor is full of material when the belt scale calibration, the result is the most ideal. 
Belt scale national standards require belt scale calibration must be carried out using the actual transport of materials, the requirements of at least 2% of the flow of material transport. If the belt conveyor material flow is 2000 tons / hour, then the calibration belt scale material at least 40 tons. In the existing installation of the belt conveyor system to remove the 40 tons of material to be weighed and then back into the system is very difficult, often can not find a suitable installation space, even if some of the scene can do, its construction and equipment Of the cost is very high. 
Saimo third bridge self-calibrating belt scale using two sets of belt weighing bridge, a group weighing hopper, a scraper reclaimer and screw conveyor. Using very little material (conveying material flow of 0.2% to 0.5%, depending on the actual working conditions), to solve the physical scale belt scale calibration. Low-cost on-line automatic calibration of materials to ensure that the belt scale weighing accuracy.

Bridge self-calibration of the belt scale works
Saimo Bridge calibration methods installed on the belt conveyor weighing bridge the two groups, there is the weighing hopper weighing bridge installed between the two groups, and is equipped with a buffer roller group.Installed in the conveyor belt scraper Reclaimer In the conveyor belt material in the process, according to the weighing instrument set time to take the material, the material from the screw conveyor into the weighing hopper.Need to be calibrated when the weighing control weighing hopper open the door to discharge, then the first set of belt weighers measure the weight of the transport material, the second set of belt weighers measuring the weight of the transport material and weighing hopper down the standard material weight , The weighing instrument takes the weight obtained by the second set of belt scales minus the weight obtained by the first set of belt scales and obtains the weight based on the same quantity of conveyed material passing through the first set of belt scales and the second set of belt scales, The weight value of standard material released by the hopper is compared with the weight value of the material displayed by the weighing instrument. The correction coefficient is obtained and the weighing range of the weighing instrument is corrected so as to display the standard material weight value.

Self-Calibration Process Calibration Bridge of at The Belt Scale
1. of First Belt weigher in at The Transportation of Materials and Processes for Weighing Scales for Calibration to Gross PHYSICAL Within last at The Scales TWO AMOUNT of Alleged Material's equal is to 
2. Second, in at The Normal of Transportation Materials Next, the After at The Material's Hopper Scales Weighing Scales Falling from the BETWEEN TWO STREAMS, the then at The TWO Scales the each HAD TWO weight values: 
3, Measurement Scales behind Heavy Material's BE Measured the include at The Material's in at The Hopper Scales, GW at The Scale only Receives at The value The of at The weight of at The Measured Material's. 
of As at The TWO Scales in on Advance Within last at The Calibration, Weighing at The Same value The of at The Delivery of Materials, Weighing at The weight value The Obtained by weight Scale minus at The weight value The Obtained by Adding Calibration Material's Obtained by at The Standard weight Value, in order to complete the online physical calibration, To solve the belt scale over the years is not easy to online calibration of physical problems

Belt weigher
a using a float value The Saimo Scale Aircraft, the PLR Field-D Digitizer, Effectively at The Belt Scale Accuracy of Ensure.

Hopper Weighing
Complete Storage Materials and Calibration Weigh function, and Automatic Feedback Control SCOOP Screw Conveyor Start-STOP Control.

SCOOP Scraper
use Scraper SCOOP Automatic Calibration to Obtain at The Material's, at The Material's Transportation at The Calibration Process Automatically Obtain Material's, Completely Avoid at The Hard Work of Artificial Complex Materials.

Conveyor Screw
IS Used to Calibrate at The Material's delivered to at The Weigh Hopper, ACCORDING to at The arrangement The of Field Devices, IT BE A May Also Belt Conveyor or OTHER Transport Equipment's Calibration Complete Delivery of Materials.

Control Electrical
the uses the PLC Automatic Control Calibration Material's reclaimers, feeding, and Weighing OTHER Material's at The Door Opening and the closing of Process, the PLR Bridge Totalizer Unified Control TARE weight Scales, Measuring and Metering Hopper Scales Scales Calibration Process.

¡ñ Standard Materials superimposed Calibration, IN AREAS OF COMMUNICAITIONS Calibration Accuracy , 
Race Mount Bridge Belt Scale Calibration Status and Conveyor System to Normal Operation IS Almost at The Same, at The Impact of at The Belt the TENSION ON at The Belt weigher Fully Corrected, High confidence Belt Scale Calibration Materials. 
¡ñ Regular Automatic Calibration, the without Affecting at The Material's Transport
Cup Mount Bridge Belt Scale Calibration routine, the without Belt idling in at The Normal Course, of Transmission of Materials, IT CAN Always Reclaimer Automatic Calibration does Not Affect at The Normal Operation of at The Delivery System. 
¡ñ Low cost Material's Calibration Device, Easy to the install ON existing Conveyor
Game Mount Bridge Belt Scale Calibration Device Comes the with in-kind CAN Guarantee Your at The Accuracy of at The Belt Scale use, less Within last Ordinary PHYSICAL Calibration Device Investment, Small footprint and More Easy to ACCOMPLISH. 
¡ñ Real-Time Comparison, Mutual Backup, at The System IS More Reliable Measurement of
TWO sets of Scales in Real Time Comparison, SUCH AS Titanium Balance value The Deviation IS TOO Large, Weighing Instrument Will Automatically Detect at The TWO Scales Weighing the Sensor Output, SUCH AS AN Abnormal the Sensor Output, at The use of the Sensor Scale at The May BE A problem, and promptly Gives at The Alarm. 
At the this at The Point at The Normal Output System Will use of the Sensor at The Scale AS A Measurement Scale, thereby Increasing at The Reliability of Belt Scale Operation.