ATWY Clamp liquid turbine flowmeter from China Manufacturer - Aister Instrument (Shanghai) Co., Ltd

Introduction

Measurement principle:
The turbine in the sensor rotates under the action of fluid to change the magnetic field of the signal detector, so the alternating voltage is induced in the coil of the signal detector, and the square wave signal is amplified, filtered and shaped by the amplifier. The frequency of this signal voltage is proportional to the speed of the impeller, that is, to the flow rate (velocity) of the fluid.

Clamp liquid turbine flowmeter is a kind of flowmeter that can be widely used in pharmaceutical, food, beverage and other industries as metering, batching, control, finished product filling and other purposes. The instrument housing is made of stainless steel (316L), which has good anti-corrosion and anti-rust ability. The whole meter structure breaks through the traditional process and adopts the structure optimization design, which greatly improves the accuracy and repeatability of the instrument. Designed specifically for the pharmaceutical and beverage industries, the turbine flowmeter uses a quick-mount connection structure for easy cleaning.

Features

01

Clamp turbine flowmeter high accuracy, generally up to ±1%R, ±0.5%R, high-precision type up to ±0.2%R;

02

Good repeatability, short-term repeatability can reach 0.05%~0.2%, it is because of its good repeatability, such as frequent calibration or online calibration can get very high accuracy, is the preferred flowmeter in trade settlement

03

Clamp turbine flowmeter output pulse frequency signal, suitable for total measurement and computer connection, no zero drift, strong anti-interference ability

04

The clamp turbine flowmeter can obtain a very high frequency signal (3-4kHz), and the signal resolution is strong

05

The clamp turbine flowmeter has a wide range, with a large diameter of 1:20 and a small diameter of 1:10

06

Clamp turbine flowmeter is compact and light in structure, easy to install and maintain, and has large flow capacity

07

Clamp turbine flowmeter is suitable for high pressure measurement, and it is easy to make high pressure meters without opening holes on the meter body

08

There are many types of special sensors for clamp turbine flowmeter, which can be designed for various special sensors according to the special needs of users, such as low temperature type, two-way type, underground type, sand special type and so on

Specifications

Executive standard	Turbine flow sensor（JB/T9246-1999）
Connection mode	Thread, clamp, flange, clamp
Precision class	±1%R、±0.5%R、±0.2%R (to be customized)
Sensor material	304, 316 stainless steel, etc
Use conditions	Medium temperature：-20℃～+120℃ Ambient temperature：-20℃～+60℃
Use conditions	Relative humidity：5%-90% Atmospheric pressure：86Kpa～106Kpa
Signal output function	Pulse signal, 4-20mA signal
Communication output function	RS485 communication, HART protocol, etc
Working power supply	External power supply: 24VDC±15%, ripple ≤±5%, suitable for 4-20mA output, pulse output, RS485, etc
Working power supply	Internal power supply: 1 set of 3.6V10AH lithium battery, the battery voltage can work normally at 2.0-3.0V
Signal line interface	Basic model: Hausmann connector or three-core cable; Explosion-proof type, internal thread M20*1.5
Explosion-proof class	Exia II CT or Exd II BT6
Protection class	IP65 or higher customizable

Model Selection

Measure the medium, temperature, whether there is corrosion

Flow range and inside diameter of user pipe

Pressure rating

Whether to show on site

Working power supply

Signal output, communication

Whether to explosion-proof

Installation mode

Precision class

Application

Industrial process

Energy measurement

Environmental protection engineering

Transportation

Biotechnology

Scientific experiment

Marine meteorology

Rivers and lakes

Installation

1.Installation position
The pipe must be completely filled with liquid. It is important to keep the pipe completely filled with liquid at all times, otherwise the flow display will be affected, which may lead to measurement errors.
Avoid bubbles. If air bubbles enter the measuring tube, the flow display may be affected, which may lead to measurement errors.

2.Installation site and requirements
（1）The sensor should be installed in a place where it is easy to maintain and the pipeline is free from vibration, strong electromagnetic interference and thermal radiation.
（2）The horizontal installation of the sensor requires that the pipeline should not have a visually perceptible tilt (generally within 5°), and the vertical deviation of the vertically installed sensor pipeline should also be less than 5°. In places where the flow cannot be stopped, by-pass pipes and reliable stop valves should be installed, and no leakage of by-pass pipes should be ensured during measurement.
（3）Connect a short pipe to replace the sensor at the position where the sensor is installed in the newly laid pipeline. After the "line sweeping" is completed and the pipeline is cleaned, connect the sensor formally.
（4）If the fluid contains impurities, a filter should be installed on the upstream side of the sensor, and the pipe should be cleaned regularly to discharge precipitated impurities; If the liquid to be measured contains liquid, an air eliminator should be installed on the upstream side of the sensor. Filter and degasser outlet and degasser outlet should lead to a safe place.
（5）When the sensor is installed outdoors, measures should be taken to avoid direct sunlight and prevent rain.

3.Length of required upstream and downstream straight pipe section
Turbine flowmeter is sensitive to velocity distribution distortion and rotating flow in the pipeline, and the entry sensor should be fully developed turbulence, so it is necessary to be equipped with the necessary straight pipe section or rectifier according to the type of the upstream side of the sensor restrictor, requiring the length of the straight pipe section of the inlet section and the outlet section.

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