1. Principle of Operation

External liquid lever sensor with sonar ranging principle,

using the temperature integrate sensor to process the sonar

signal. the sensor is pasted in the outerwall of the tank. Using the

patented algorithm to calculate the height of the liquid in the

tank and output to a remote control system(eg.DCS) through

(4-20)mA,HART, RS-485, Modbus.

According the figure right, the time is taken for the signal to

be transmitted and then received from the liquid surface. Signals

from the transducer are fed into the processor and then

processed by patented algorithm to calculate the height of the

liquid according to the formula:

H=αV(t-t1)/2

H: height of the liquid

v: velocity of sound in the liquid

t: time between transmitted and received signal

t g : propagation time in the tank wall

α :liquid compensation factor

2. Applications

LPG tanks

liquid ammonia tanks

liquid propane tanks

Fuel tanks

Acids/solvents tanks

Concentrated sulfuric acid(98%) tanks

Nitric acid tanks

Hydrochloric acid tanks

3. Features

True non-invasive sensing technology

The sensor sticks to the outside of the tank bottom

Suitable for most shapes and sizes of cans

Output to telemetry system - various options

CNEX approved for use in hazardous areas

(processor and sensor)

Temperature integrated sensor

Low cost, reliable & accurate tank gauging

Not affected by pressure

Easy installation - no tank break-in

Simple retroft to existing tanks

No down-time during installation

No moving parts – no maintenance

3. Parameter

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.