Pressure Transmitters / Controllers

I. Overview

   The LU-K diffusion silicon pressure transmitter adopts the high-accuracy, high-stability diffusion silicon isolated sensor assembly from the well-known American company NovaSensor. Through a highly reliable amplifier circuit and precise temperature compensation, it converts the absolute pressure or gauge pressure of the measured medium into a 4-20mADC standard electrical signal. Exquisite packaging technology and perfect assembly processes ensure the excellent quality and superior performance of this product. The product features a complete variety, standardized interface forms, and convenient zero and range adjustment, and can meet customer needs to the greatest extent.
    The LU-K diffusion silicon pressure transmitter is available in general type, intrinsically safe explosion-proof type and flameproof type; the intrinsically safe explosion-proof and flameproof products can be widely used in various harsh and hazardous locations in industrial sites.

II. Features:
•0~3KPa to 0~60MPa
•Direct process connection, no mounting bracket required
•Lightning protection and RF interference resistance
•Intrinsically safe explosion-proof or flameproof
•Zero and range continuously adjustable from outside
•Compact size, attractive appearance, high cost performance
•High accuracy, high stability, high reliability

III. Applications
•Level measurement and control in industrial sites
•Laboratory pressure calibration systems
•Navigation and shipbuilding
•Aviation and aircraft manufacturing
•Air separation equipment and water supply systems
•Energy management systems
•Level measurement and water supply systems
•Level pneumatic control systems

IV. Technical parameters
•Measuring medium: various liquids, gases or steam compatible with 316L stainless steel
•Range: 0~3KPa to 0~60MPa
•Overload pressure: 2 times the maximum range or 70Mpa (whichever is smaller)
•Output signal: 4~20mADC (two-wire)
•Operating voltage: 14~36VDC (two-wire), standard 24VDC±5%, ripple less than 1%
•Medium temperature: -25±100°C
•Ambient temperature: -20±85°C
•Relative humidity: 0%~100%
•Load resistance (4~20mA): R=u-14-R0, where U is the power supply voltage and R0 is the cable internal resistance; (0~10mA): R≤1k 0.02Ω; (0-5V): R≥300Ω
V. Performance specifications:
•Accuracy: ±0.25% (combined error including non-linearity, repeatability and hysteresis)
•Zero shift: 0%~+80% of the maximum range (split type only; the zero of the integral type is not shiftable)