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XMJA-8000 Intelligent Flow Calculation Controller
XMJA-8000 Intelligent Flow Calculation Controller
XMJA-8000 Intelligent Flow Calculation Controller
The XMJA-8000 intelligent flow integrator controller consists of four parts: measurement circuit, digital panel meter, regulator, and electrical appli

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智能流量积算控制仪接线指南智能流量积算控制仪接线指南

Product Overview/Product overview----------------------------------------------------------◆◆
The XMJA-8000 series intelligent flow integrator produced by our company adopts self-developed and commissioned Japanese integrated circuit manufacturers to customize and produce specialized integrated circuits, forming an intelligent instrument with microprocessor as the core. It gathers most of the functions of various flow calculation instruments in current automatic control systems, and is supplemented by a software system that draws on the strengths of others, carefully compiles, and repeatedly debugs, making this instrument unique in the following aspects:
1. The hardware of the instrument has been significantly reduced, and the composition structure of the system is relatively simple. Within the scope of user application, multiple input signals can be switched freely. Adopting optimized design, the process has been significantly improved, without flying wires or adjusting potentiometers. All calibration and function settings can be completed by software through the keyboard.
2. Up to four alarm outputs can be set, with more than ten alarm methods and monitoring of alarm parameters.
3. Two display windows, with a four digit display window displaying instantaneous flow values and a six digit display of accumulated values. The actual effective accumulated value is seven digits, or it can be displayed as a nine digit accumulator. The P-type also has a dual reset function of external reset and internal reset, which can be viewed by setting the conversion coefficient.
4. Any complex control, regulation, alarm, output and other functions can be easily operated by the instrument operator. After setting, they are password protected to make it a foolproof instrument, and the on-site operator will not be able to modify the locked parameters. It is even possible to prevent operators from viewing. Four categories and nearly a hundred levels of anti-interference modes set by users themselves can adapt to various environmental interference sources.
5. Two optional D/A output ports can be added to optically isolate the process variables and ensure the safety and reliability of the controlled system. But providing two constant voltage sources of 5V or 24V output can meet the needs of most auxiliary functions.
6. This instrument can also be equipped with two time timers, which can control the alarm time, output time and other parameters at a fixed time, and can even be made into a simple batch controller.
Therefore, compared with ordinary control flow meters, this instrument has a significant improvement and breakthrough in various functional levels. Its reliability and stability are comparable to price, and it is more suitable for the national conditions, which is of great significance for replacing imports.

Working principle/working principle-----------------------------------------------------------◆◆
The XMJA-8000 intelligent flow integrator consists of four parts: measurement circuit, digital panel meter, regulator, and power supply. The regulated power supply converts 220V mains power into a stable DC voltage for other parts of the power supply. The measurement circuit processes the signals (voltage, current, etc.) sent by the flow transmitter and converts them into voltage signals. After A/D conversion, the signal is sent to the JC-588 dedicated central processing unit for processing. It not only needs to be sent to the digital panel table, but also to the regulator. After comparing with the set value, the regulator outputs a control or alarm signal according to the adjustment rule. Working principle diagram:
智能流量积算控制仪原理

Product selection/product selection-----------------------------------------------------------◆◆
XMJA —— describe
Design sequence 8 8000 series instrument
Display mode 1 Dual screen display
2 Dual screen+single light column
Input method 1 Equipped with DC current (0~10mA, 4~20mA)
2 Equipped with DC voltage (0~5V, 1~5V, 0~20mV, 0~100mV, 0~500mV)
3 Frequency Input
Traffic method 1 The main input signal is proportional to the instantaneous flow rate
2 The main input signal and instantaneous flow rate are taken as the example main formula
3 The main input signal is proportional to the instantaneous flow rate and has a small signal cutoff function
4 The main input signal and instantaneous flow rate are used as an example, with a small signal cutoff function
Adjustment method 0 No relay output
1 Two relay outputs, capable of controlling instantaneous flow or cumulative flow separately
2 Four relay outputs, capable of controlling instantaneous flow or cumulative flow respectively
Compensation method 0 Normal flow method, without temperature or pressure compensation
1 Pressure compensation method using voltage or current signals for saturated steam
2 Temperature compensation method using voltage or current signals for saturated steam
3 Temperature compensation method using Pt100 thermal resistor for saturated steam
4 Temperature and pressure compensation using voltage or current signals for superheated steam
5 Overheated steam is compensated for pressure using voltage or current signals, and temperature compensation is performed using Pt100 thermal resistors
6 Excluding temperature and pressure compensation, with display conversion system settings
External dimensions H Horizontal 160 × 80 Opening 152 × 76
V Vertical 80 × 160 Opening 76 × 152
F Method 96 × 96 Opening 92 × 92
Transmission output A No transmission output
B Transmission output 0~10mA
C Transmission output 4~20mA
D Transmission output 0~5V
E Transmission output 1~5V
F Special signal transmission output
Timing S Default is no timed function
Equipped with timing function
External 24V DC power supply P Default is no 24V DC power output
With 24V DC power output (can be used as a two-wire transmitter power supply)
communication interface T Default is without communication interface
Equipped with RS485 or RS232 communication interface
power supply K Default is 220V. AC
Switching power supply 85-260VAC or 18-36VDC, 18-36VAC

Technical indicators/Technical indicators---------------------------------------------------------◆◆
1. Measurement accuracy: ± 0.5% FS+1 word
2. Adjust control accuracy: Position: ± 0.5% FS
3. Alarm function: upper limit, twenty limit, upper and lower limits, lower return difference, double return difference, OK mode, absolute value mode, etc
4. Transmission output accuracy: ± 0.5% FS Load capacity: 0-600 Ω
5. Input impedance: 0-10mA: 500 Ω, 4-20mA: 250 Ω, DC. V: ≥ 200K Ω Pulse amplitude: ≥ 2.5V, frequency range 0.01-10000Hz
6. Relay contact capacity: AC220V 2A
7. Power supply: AC220V ≤ 6W AC110V DC24V
8. Work environment requirements: Temperature: 0-50 ℃, relative humidity:<85%, no corrosive gases, low vibration allowed

Rear panel and electrical wiring/Rear panel and electrical wiring-----------------------------------◆◆
TABLE I
智能流量积算控制仪接线指南
Table 2
智能流量积算控制仪接线指南

Instrument installation/Instrument installation-----------------------------------------------------◆◆
Before installing the instrument, check whether the instrument model, division number, measurement range, and sensor are consistent.
2. The instruments are divided into two types: horizontal and vertical, horizontal rectangular, horizontal square, vertical rectangular, and vertical rectangular.
3. Hole size:
a. Horizontal 152 × 76mm (see Figure a)
b. Vertical 76 × 152mm (see Figure b)
c. Square 92 × 92 (see Figure c)
智能流量积算控制仪安装

Product packaging/Product packaging----------------------------------------------------------◆◆
智能流量积算控制仪产品包装

Logistics Description/Logistics instructionss-------------------------------------------------------◆◆
智能流量积算控制仪物流说明
智能流量积算控制仪企业资质智能流量积算控制仪营业执照
智能流量积算控制仪客户现场图
智能流量积算控制仪公司车间
智能流量积算控制仪买家必读

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