The metering module is a transducer, which is used to convert the force into an electrical signal. This transformation is indirect and takes place in two stages. Through a mechanical device, the sensed force deforms the strain gauge. The strain gauge as an electrical signal measures the deformation (strain) because the strain changes the effective electrical resistance wire. The weighing module is usually configured by four strain gauges in Wheatstone Bridge. One strain gauge (quarter bridge) or two strain gauges (half bridge) of the weighing module are also available. The output electrical signals are usually in the order of several millivolts and need to be amplified by a weighing instrument amplifier before they can be used. It can also be extended to the output of the transducer where the calculated force is applied to the transducer.

The weighing module is to weigh powder or liquid materials with a single scale and mix them according to the selected formula. Used in chemical industry, food industry and other industries to determine the material level of silos and hoppers, to monitor the load, to measure the load of conveyor belts, or to protect industrial hoists and rolling mills from overload. Weighing equipment uses weighing module to collect the automatic proportion of weight signal, and adopts data operation and automatic adjustment to ensure the accurate measurement of weight signal. It has the functions of man-machine interaction, communication, display and storage, printing, etc., and has various functional screens related to operations such as data and graphic display, state monitoring, data input and information storage. It can realize real-time process data monitoring, simulation display of process flow, real-time data record consulting, operator authority setting, process parameter setting, setting operation process event alarm and manual and automatic control switching.

In order to realize the static weighing measurement of large containers and hoppers in industrial environment, weighing module integrates weighing sensor, load transmission device, limit and overload prevention, and can be easily connected with various mechanical equipment. On the basis of traditional resistance strain sensor, combined with modern microelectronics technology and microcomputer technology, control functions are added, including weight display, quantitative feeding, unloading, field equipment control, alarm signal display, formula setting and process monitoring.

technical parameter

* Rated load (R.C.): 10, 15, 20, 25, 30 and 50t.

* rated output (r.o.): 2 0.0050mv/v.

* Zero balance: 0.015mv/v.

* Comprehensive error: ±0.03%R.O 。

* nonlinearity: ±0.03%R.O

* Lag: ±0.03%R.O 。

* repeat: sex ±0.02%R.O

* Creep (30min): ±0.03%R.O 。

* Normal operating temperature range: -10...+40℃

* allowable working temperature range: -20...+70℃

* Influence of temperature on sensitivity: 0.02% r.o./10℃

* Influence of temperature on zero point: 0.02% r.o./10℃

* Recommended excitation voltage: 10V(DC/AC)

* Maximum excitation voltage: 15V(DC/AC)

* Input impedance: 770 10 Ω

* Output impedance: 700 5 Ω

* insulation impedance: > 5000MΩ

* safety overload: 150%R.C

* ultimate overload: 300%R.C

* Elastic element material: alloy steel

* Protection grade: IP68