Hydrogen peroxide tuning fork densitometer

1、 Product Introduction

Hydrogen peroxide tuning fork densitometerAdopting plug-in installation, it is widely used for medium density detection in pipelines, open tank containers, and closed tank containers. It is a commonly used density measuring instrument that can measure the density of various liquid media. It is widely used in industries such as food factories, chemical, petroleum, pharmaceutical, etc. In addition, this density meter can also measure parameters such as temperature and concentration of media, making it versatile.

2、 The working principle is as follows

Hydrogen peroxide tuning fork densitometerThe working principle of the fork is designed based on the principle of component vibration, which is similar to a two toothed tuning fork. The fork body vibrates due to a piezoelectric crystal located at the root of the tooth, and the frequency of the vibration is detected by another piezoelectric crystal. Through phase shifting and amplification circuits, the fork body is stabilized at its natural resonant frequency. When the medium flows through the fork, the change in the mass of the medium causes a change in the resonant frequency.

The density and vibration frequency of the medium follow the following mathematical formula:

D=K0+K1T+K2T2

In the formula: D=density of the measured medium

T=natural frequency of fork body

T2=frequency of the measured medium flowing through the fork

K0, K1, K2=constants

According to this formula, the accurate medium density value can be calculated through an electronic processing unit.

3、 Product Features and Advantages

(1) A durable and reliable direct insertion instrument with high performance that requires minimal maintenance,

(2) Provide integrated "plug and play, maintenance free" density measurement

(3) Not easily affected by temperature and pressure

(4) Direct insertion densitometer is suitable for working under high pipeline pressure

(5) Provide materials including 316L, HAC, zirconium, etc

(6) Long rod type suitable for use in open and sealed cans

(7) Can achieve continuous measurement without interruption

(8) The two parameters of temperature and density can be displayed alternately, making it convenient for industry standard density conversion

(9) Easy to install and use, simply insert liquid to display readings

(10) This safety type can be used in hazardous environments; Sanitary type can be installed on food production sites

(11) High sensitivity, no impact, no hanging material

4、 The selection technical parameters are as follows

Measurement range: 0~100.0%

Calibration range: 0~100.0%

Measurement accuracy: ± 0.5%

Repeatability: ± 0.001 g/cc (± 0.2 kg/m3) ± 0.1%

Operating temperature range: -50 ℃~+150 ℃

High work pressure: 3mpA

Fluid viscosity range: 0-600cP

Pressure impact: negligible

Built in temperature sensor: digital sensor

Wetting material: 316L, 2205 stainless steel, Ha C, titanium alloy

Fork body coating: standard PTFE or PFA

Power supply: 24VDC, ≥ 50 mA

Analog signal output 4-20 mA, 0-1000Hz, RS485 Modbus RTU

Output accuracy (20 ℃): ± 0.1% or ± 0.05% FS of the reading

Output repeatability (-40~+85 ℃): ± 0.05% FS

Process connection: DIN 50 PN16 DIN 50 PN40

IDF and RJT sanitary type

Protection level: IP65

Shell: Aluminum alloy

5、 Application in the Instrumentation Industry

(1) Pharmaceutical industry: Measurement of concentration and density of concentrated solutions

(2) Measurement of density and concentration of various types of conveying pipelines or tanks

(3) Food industry applications: syrup, beverage, jam, vegetable oil, rapeseed oil, jelly, honey, etc

(4) Oil products: lubricating oil, diesel, gasoline, kerosene, fuel oil, etc

(5) Chemical industry: acid-base solutions, ethylene glycol, urea, ammonia water, alcohol, hydrogen peroxide, etc

(6) Breweries: red wine, beer, Baijiu, wine, rice wine, sorghum wine, etc

(7) Desulfurization and denitrification projects: lime slurry, ammonia water, etc

6、 Installation precautions for tuning fork densitometer

(1) Avoid contact with corrosive or overheated media

(2) Handle with care to prevent damage to the tuning fork densitometer

(3) Prohibit stress testing beyond the testing pressure

(4) Prohibition of measuring highly corrosive liquid media

(5) The tested medium is not allowed to freeze, otherwise it will damage the sensing components and cause damage to the tuning fork densitometer

(6) Do not operate the densitometer above rated pressure

(7) The instrument is suitable for all explosion-proof occasions

(8) It is strictly prohibited to weld pipes during the installation of the tuning fork densitometer

(9) It is necessary to prevent slag from depositing in the tank

(10) The tuning fork densitometer should be installed as much as possible in places with small temperature gradients and temperature changes, without impact and vibration.