Good quality Weigh System - JJ-LIW BC500FD-Ex Dripping System – JIAJIA

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Good quality Weigh System - JJ-LIW BC500FD-Ex Dripping System – JIAJIA Detail:

Function principles

The meter controller collects the weight signals of the measuring tank in real-time
Convert the weight per unit time into an instantaneous flow
PID controller calculates the instantaneous flow rate and the preset value
According to the PID algorithm results, the meter controller outputs 4-20mA analog signals to the regulating valve/inverter to make precise flow control
At the same time, the meter controller accumulates the weight of the material flowing out of the measuring tank. When the accumulated value is equal to the set value, the meter controller closes the valve/inverter and stops the dripping.

Features

Highlight display interface, simultaneously display instantaneous flow and cumulative total

Automatic feeding function

Remote, local switching, and manual and automatic control

Comprehensive status monitoring and chain alarm function

Real-time monitoring of sensor load, convenient for maintenance and troubleshooting

Can coordinate with DCS/PLC through the data bus

Standard RS232/485 dual serial ports, MODBUS RTU communication

Extendable a 4~20mA input and a 4~20mA output Optional Profibus DP interface

Features

Case 1: Weighing flowmeter

1. The weighing method is not affected by temperature, density, installation method, etc.
2. High measurement accuracy
3. No contact with materials, no cross-infection

Case 2: Automatic control of dripping by the instrument

1. Automatic drip control of the instrument
2. Quick setting of process parameters
3. On-site operation display, simple and intuitive

Case 3: Meter metering flow, DCS control dripping

1. The weighing method is not affected by temperature, density, installation method, etc.
2. The meter directly provides flow data, and DCS controls the process
3. Fast sampling frequency and high measurement accuracy

Case 4: DCS instruction, meter automatically controls dripping

1. Automatic dripping control
2. The instrument participates in the process
3. Reduce the cost of PLC/DCS software and hardware

Specification

Enclosure	Cast Aluminum
Run Mode	Constant feeding, Material level Balancing, Batch feeding
Signal Range	-20mV~+20mV
Max. Sensitivity	0.2uV/d
FS Drift	3ppm/°C
Linearity	0.0005%FS
Flowrate Unit	kg/h, t/h
Dec.point	0, 1, 2, 3
Control Mode	Zone Adj. / PID Adj.
Max Quantity	<99,999,999t
Display	128×64 Yellow-Green OLED display
Keypad	16 Flat switch membrane with tactile-feel keys; polyester overlay
Discrete I/O	10 Inputs; 12 Outputs(24VDC @500mA with over-load protection)
Analog Output	4~20mA/0~10V
USART	COM1: RS232；COM2: RS485
Serial Protocol	MODBUS-RTU
Power Supply	100~240VAC，50/60Hz, <100mA(@100VAC)
Operating Temperature	–10°C ~ +40°C，Relative humidity:10%~90%，non-condensing

Product detail pictures:

Related Product Guide:
New weights and their correct classification method
Why is there an error in weight calibration?

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