Pressure Transmitters / Controllers

I. Overview

The LU-L diffusion silicon level transmitter adopts the high-accuracy, high-stability diffusion silicon pressure sensor assembly from the well-known American company NovaSensor. Through a highly reliable amplifier circuit and precise temperature compensation, it converts the measured liquid signal into a 4-20mADC standard electrical signal. High-quality sensors, exquisite packaging technology and perfect assembly processes ensure the excellent quality and superior performance of this product. The product is available in integral and split structure types, and offers three media measurement types: cable type, armored type and anti-corrosion type. The armored and anti-corrosion products can withstand the attack of various corrosive liquids and meet customer needs to the greatest extent.
The LU-L diffusion silicon level transmitter is available in general type and intrinsically safe explosion-proof type; the explosion-proof products can be widely used in various harsh and hazardous locations in industrial sites.

II. Features:
•0~3M to 0~350M
•Integral and split types
•Cable type, armored type, anti-corrosion type
•Lightning protection and RF interference resistance
•Reverse polarity protection and current limiting protection
•Intrinsically safe explosion-proof
•Zero and range continuously adjustable from outside
•High accuracy, high stability, high reliability

III. Applications:
•Level measurement and control in industrial sites
•Hydrological monitoring and control
•Navigation and shipbuilding
•Municipal water supply and wastewater treatment
•Large river dams and water conservancy construction
•Food and beverage equipment
•Chemical and medical equipment

IV. Technical parameters

•Measuring medium: water and general non-corrosive liquids (cable type); various liquids compatible with 316L stainless steel (armored type); various corrosive liquids (anti-corrosion type)
•Range: 0-0.3M to ~350M
•Overload pressure: 2 times the maximum range
•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
•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