⎝⎛星力捕鱼⎞⎠

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technical article
Use range and technical indicators of intelligent measurement and control instrument
2012-1-10 10:54:10

与各类传感器、变送器配合使用,智能测控仪可对温度、压力、液位、流量、重量等工业过程参数进行测量、显示、报警控制、调节、变送输出、 The intelligent measurement and control instrument is used in conjunction with various sensors and transmitters. The intelligent measurement and control instrument can measure, display, alarm control, adjust, transmit and output industrial temperature parameters such as temperature, pressure, liquid level, flow, and weight.

Data acquisition and communication

Scope of intelligent measurement and control instrument


SK-100 intelligent measurement and control device is used in conjunction with various sensors and transmitters. The intelligent measurement and control device can measure, display, alarm control, adjust, and change industrial process parameters such as temperature, pressure, liquid level, flow rate and weight.

Send output, data acquisition and communication.

功能特点 Intelligent measurement and control instrument features


Universal input function


Intelligent measurement and control instrument has automatic calibration and manual calibration functions


Multiple protection, isolation design, strong anti-interference ability, high reliability


Good software platform with secondary development capabilities to meet special functions


先进的模块化结构,配合功能强大的仪表芯片,功能组合、智能显示调节仪系统升级非常方便 The advanced modular structure of the intelligent measurement and control instrument, combined with the powerful instrument chip, is very convenient to upgrade the function combination and intelligent display regulator system.

3. Main technical indicators


Basic error: 0.5% FS or 0.2% FS ± 1 word


Resolution: 1/20000, 14-bit A / D converter


Display mode: dual-row four-digit LED digital tube display


Sampling cycle: 0.2S


Alarm output: two-limit alarm or four-limit alarm, alarm mode and alarm sensitivity can be set, relay output contact capacity AC220V / 3A or AC220V / 1A.


Transmission output: 4 ~ 20mA, 0 ~ 10mA, 1 ~ 5V, 0 ~ 5V Accuracy: ± 0.3% FS

Communication output: interface mode-isolated serial two-way communication interface RS485 / RS422 / RS232 / Modem


Baud rate: 300 ~ 9600bps freely set internally


Feed output: DC24V / 30mA


Power supply: switching power supply 85 ~ 265VAC, power consumption below 4W


4.Signal input type


Thermocouple: K, E, S, B, J, T, R, Wre3-25; Cold junction temperature automatic compensation range 0 ~ 50 ℃, compensation accuracy ± 1 ℃.


Thermal resistance: Pt100, Cu100, Cu50, BA2, BA1; lead resistance compensation range ≤15Ω.

Linear resistance: 0 ~ 400Ω


Remote resistance: 30 ~ 350Ω (remote pressure gauge).


DC voltage: 0 ~ 20mV, 0 ~ 100mV, 0 ~ 5V, 1 ~ 5V, 0 ~ 5V square, 1 ~ 5V square, -5 ~ 5V;


-10V ~ 10V, 0 ~ 10V (need to be specified when ordering, it is not compatible with other signals).


DC current: 0 ~ 10mA, 4 ~ 20mA, 0 ~ 20mA, 0 ~ 10mA square, 4 ~ 20mA square.


Input impedance: voltage signal Ri≥500KΩ.