Hydrochloric acid tuning fork densitometer

1、 Product Introduction

Hydrochloric acid tuning fork densitometerIt is designed to meet the requirements of demanding liquid online precise measurement and acquisition applications. As a stable and reliable in-line densitometer that requires minimal maintenance, they can provide integrated "plug and play, maintenance free" density measurement. Mainly used for production process control and measurement in low corrosion liquid industries, such as oil field refining, food and beverage, paper industry, chemical acid and alkali solutions, wine industry, salt industry, printing and dyeing industries.

2、 Working principle

Hydrochloric acid 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.

3、 Functional Features and Advantages

(1) The tuning fork resonant densitometer is equipped with a microprocessor based electronic conversion device and integrates signal processing, calculation, and diagnostic functions.

(2) Sensors can not only measure density and temperature, but also calculate parameters such as basic density ° API, Brix content, concentration percentage, mass percentage, volume percentage, and specific gravity.

(3) The tuning fork densitometer has high accuracy and reliability, and can communicate directly with a PC through RS485 interface in the ADView software environment. Users can directly configure online nodes, diagnose faults, and record data.

(4) It can directly enter the instrument menu on site to set parameters and debug, making it easy to operate.

(5) Online real-time measurement can be directly used for production process control.

(6) All parts in contact with liquids are made of 316 stainless steel material, which is safe, hygienic, and has good corrosion resistance.

4、 Selection of technical parameters

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、 Precautions for installation of density meter

(1) Installation position: The online tuning fork densitometer should be installed upstream of the pipeline to ensure that the fluid can be detected before flowing through the pipeline, and installed on the straight pipe section to avoid measurement errors caused by pipeline bending or valve interference.

(2) Fixed method: During installation, a suitable fixing method should be selected, generally using flange connection or clamped clamping method for fixation. At the same time, when fixing, it is necessary to ensure that the vibrating part of the tuning fork is perpendicular to the measured fluid and must not be obstructed by any object.

(3) Wiring connection: During wiring connection, attention should be paid to maintaining good contact to avoid signal interference or poor contact, which may cause measurement errors or faults.

(4) After installation, we still need to perform some important operations, such as system calibration, parameter settings, etc., to ensure the accuracy and reliability of the instrument.