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LXC series electronic spiral scale

Structure Characteristics

LXC series metering screw scale is a new type of electronic scale which organically combines the weighing technology principle of lever electronic belt scale with screw conveyor. It is mainly suitable for powdered form. Dynamic measurement for continuous conveying of bulk materials. A measuring device that controls the amount of feed. Especially applicable to the old factory in the process of renovation, space is small, unable to install other types of electronic metering equipment places. The product was recognized as a high-tech product by Jiangsu Provincial Science and Technology Department in 2004.

Measurement accuracy

±0.5%

Control accuracy

Better than ±1.0%

Instrument power supply

Single-phase 220V±10%

Power supply

Three-phase 380V±10%

Use environment

Temperature :-10℃

Use environment

Humidity :5%~90%

Weighing bridge

Weighing sensor

Velocity sensor

Motor

The overall accuracy of the machine is better than 0.01%;

The display data, flow, speed, accumulative amount, load, time can be set to the same screen display built-in multifunctional regulator, can be directly in the instrument internal PID adjustment; Guided menu operation, the instrument has self-diagnosis, alarm prompt, pulse output, manual/automatic null balance and zero automatic tracking functions, and can realize the simulation or physical test error automatic correction;

With high and low belt speed alarm delay output and feed rate control deviation delay alarm output function; It has the output function of solid state relay with cumulative tonnage pulse signal, 0.01T, 0.1t optional;

With high and low limit alarm, fault self-diagnosis function

Test error can be selected as percentage or project value display

The system has the function of cumulative pulse output;

With a very reliable power failure protection of internal data function; Multiple isolation interfaces, extensible to achieve two-way communication (RS232/485), print output, current (flow 4~20mA) output, frequency output and other functions of data storage, battery to keep data up to 10 years;

Metal plate spray shell, waterproof, dust-proof, strong magnetic field interference.

The material is stainless steel, dustproof, stable performance, accuracy is better than 0.3%. , protection class is IP68, with overload protection device. Specific parameters are as follows:

Nonlinear: less than 0.03% of rated output

Repeatability: less than 0.03% of rated output

Lag: less than 0.03% of rated output

Temperature sensitivity: 0.0003C at zero

Excitation voltage: 10VDC provided by weighing control instrument

The above parameters finally meet the requirements of NTEP 1:500 class LSigle Cell error required by American metrological organization

With the speed measurement rolling simple using soft connection, real reflection belt speed measurement, accurate counting, not by repeated start and frequency conversion of high and low speed, even in mechanical vibration.

Self-excited vibration and electrical noise can also remain stable.

1.Scope of adaptation

2.product model and meaning

3The working principle

When the material is spiral conveying process, installed in the screw conveyor below the weight sensor detects the weight of the material and produces a voltage signal proportional to the load at the same time installed in the tail of the screw conveyor speed sensor detects the speed signal of the screw conveyor spindle, the two signals are sent into the weight integrator at the same time, after the integral calculation to obtain the instantaneous flow value and cumulative value.

4. system characteristics

Sealed structure, no dust publicity;

Dynamic metering is combined with spiral conveying to realize dynamic continuous metering.

Compact structure, small space, stable and reliable operation;

Automatic zero adjustment, automatic interval adjustment, all parameters are keytone input;

Using weight calibration, calibration is simple and convenient;

Photoelectric speed sensor, high precision, strong anti-interference ability;

With the impeller feeder can achieve fixed ratio fixed star batching, also can use the bin direct pressure type to achieve speed regulation batching.

5.Working principle diagram