The nonlinear error characteristics of weighing module, the adaptive subsection compensation method of nonlinear error, in the upper limit of rated range, the compensation network based on radial basis function neural network is used to complete the nonlinear error compensation of sensor; In the lower limit region, a digital filter is used to complete the nonlinear error compensation. In the middle area, the weighing sensor does not compensate, and at the same time, the adaptive selection network is used to complete the selection of subsection compensation.
020-34563445Digital Weighing module adopts T-BUS bus, the whole sensor on the 2 wires, no polarity arbitrary connection, there is no possibility of connecting the wrong, short-circuit does not damage the equipment, lightning, anti-power, so that the system is simplified to the extreme, the reliability of the system has been greatly improved, the installation and maintenance has become extremely simple, to overcome the RS485 chip is very easy to be damaged due to lightning strikes to make the sensor scrapped, and lay a technological foundation for the digital scales into the full-intelligence of foolproof type applications. This has laid the technical foundation for the digital scale to enter into the fully intelligent and foolproof application.
Digital Metering module data bi-directional transmission, can be the identity of the sensor information (model, range, factory number, sales time, etc.), the use of information (customer classification code, overload amount of weight, overload number of times, etc.) and so on all the storage of the sensor inside the instrument through the instrument to automatically identify and read out, to achieve the electronic storage of information.
The range of the Load cell can be read out at any time, and the weighing instrument can convert its output code into a uniform kg value according to the range of each load cell, realizing the application of mixing load cells with different ranges and soft zero correction, setting up software zero in each load cell for correcting the change of zero due to temperature drift and creep, which can completely solve the problem of zero deviation of digital load cell in use.
Instruments and sensors do not use standard hardware serial modules, through the customization of special communication protocols to complete the data encryption, to ensure data security, to improve the anti-cheating performance of the system.
The new generation of 2-wire digital weighing module not only simplifies the installation and maintenance of the system, but also overcomes the inherent defects of the conventional digital weighing module, which truly realizes the foolproof application of intelligent products. If equipped with the "intelligent junction box", the digital Electronic scales will truly enter into the era of the fully-intelligent and foolproof, so that anyone can complete the installation and maintenance of digital electronic scales without training. Installation and maintenance of electronic scales will be the maintenance personnel to liberate, so that the digital electronic scales are no longer for the fear of ordinary people, manufacturers worry about the development of electronic scales is of great significance.
Technical Parameters
*Rated load (R.C.):10T,20T,30T,40T,50T,60T,80T,100T
*Rated Output (R.O.): 2±0.005mV/V
*Zero Balance:±0.030mV/V
*Integrated error:±0.03%R.O.
*Nonlinearity:±0.03%R.O.
*Hysteresis:±0.03%R.O.
*Repeatability ±0.02% R.O.
*Creep (30 minutes): ±0.03%R.O.
*Normal operating temperature range:-10... +40°C
*Allowable working temperature range:-20... +70°C
*Temperature effect on sensitivity: ±0.02% R.O./10°C
*Temperature effect on zero point: ±0.02%R.O./10°C
*Recommended excitation voltage:10V(DC/AC)
*Maximum excitation voltage:15V(DC/AC)
*Input Impedance:385±10Ω
*Output impedance:350±3Ω
*Insulation impedance:>5000MΩ
*Safety overload: 150% R.C.
*Limit overload:300%R.C.
*Elastic element material: alloy steel
*Protection class:IP67
