ATLQ Gas Roots Flow Meter from China Manufacturer - Aister Instrument (Shanghai) Co., Ltd

Introduction Features Specifications Model Selection Application Installation

Introduction

Gas Roots Flow Meter is a kind of gas monitoring and measuring instrument with high precision, high reliability and wide range. The Intelligent Gas Roots Flow Meter is a new flowmeter that integrates flow, temperature, pressure sensors and intelligence on the basis of Roots flowmeter.

With the passage of gas, the pressure difference between the inlet and outlet of the gas meter acts on a pair of waist wheels connected together by a high-precision synchronous wheel, thereby driving the waist wheel to rotate, the gas filled with the metering room is quantitatively discharged, and then connected by a mechanical transmission and a calculator to achieve gas volume and data conversion.

Intelligent Gas Roots Flow Meter is the ideal instrument for measuring natural gas, city gas, gas, nitrogen, industrial inert gas and other non-corrosive gases.

Features

Wide range: According to different specifications, the higher range can reach 1:216

Low starting flow rate: According to different specifications, low starting flow rate can reach 0.04m³fh.

High precision, high repeatability: long-term accuracy is not affected by the medium, long-term operation, stable accuracy.

Small pressure loss: according to different specifications, pressure loss 0.08kPa-0.58kPa.

High integration, low power consumption: microcomputer technology and high-performance integrated chip, the whole machine has powerful functions and excellent performance.

Compact structure: pressure sensor, temperature sensor, flow sensor are all built in, making the structure more compact.

Digital pressure temperature sensor: digital temperature sensor and digital pressure sensor configuration, separate calibration and verification, easy to replace, maintain and use.

Segment correction: Search the flow frequency signal, the instrument coefficient can be automatically segmented linear correction, improve the wide range accuracy of the instrument.

Complete data storage function: using E2PROM data storage chip, save user parameters, manufacturer parameters, timely data storage function, can prevent data loss during sudden power failure, in the state of power failure, internal parameters can be saved.

010

The basic output is complete: The intelligent flowmeter has pulse output, working condition or standard condition pulse signal output, and calibrated pulse output. It can also output 4-20mA analog signal or RS485 communication according to user needs.

Specifications

Model number	Flow specification	Nominal diameter （mm）	Nominal pressure （MPa）	Starting flow （m3/h）	Flow range （m3/h）	accuracy
ATLQ-20	G16	25	1.6 2.5 4.0	0.05	0.5-25	1.0 级、1.5 级
ATLQ-40	G25	40		0.05	0.4-40
ATLQ-65	G40	50		0.06	0.65-65
ATLQ-80	G65	50		0.06	0.8-80
ATLQ-100	G65	50/80		0.08	0.625-100
ATLQ-150	G100	80		0.1	1-160
ATLQ-200	G160	80		0.1	2.5-250
ATLQ-300	G160	100		0.12	3-300
ATLQ-450	G250	100		0.15	2.5-400
ATLQ-650	G400	100/150		0.65	4-650
ATLQ-1000	G650	150		0.65	13.3-1000
ATLQ-1600	G1000	200		1.05	32-1600

Model Selection

01 Measure the medium, temperature, whether there is corrosion

02 Flow range and inside diameter of user pipe

03 Pressure rating

04 Whether to show on site

05 Working power supply

06 Signal output, communication

07 Whether to explosion-proof

08 Installation mode

09 Precision class

Application

Industrial process

Energy measurement

Environmental protection engineering

Transportation

Biotechnology

Scientific experiment

Marine meteorology

Rivers and lakes

Installation

1、Before installation and use, the user should read this description in detail to ensure the correct installation and reasonable use of the flow meter, so as not to affect the normal operation and measurement accuracy.

2、Before installing the flow meter, the outlet package should be removed, and granular impurities must be prevented from falling into the measuring room, such as anti-rust oil on the surface of the measuring room, which can be washed with gasoline or kerosene, and impurities in the pipeline should be strictly removed. A filter or filter should be installed upstream of the flow meter to prevent rust slag, welding slag and impurities from entering the measuring room.

3、When the flow meter is installed, whether the outlet is vertical or horizontal, the rotor axis should be kept horizontal as far as possible. In order to prevent the rust slag and welding slag impurities in the newly installed pipeline from entering the flow meter, the user should first install the transition pipe on the installation position of the flow meter, vent for a period of time (about a week), ensure that there are no large particles of impurities, and then replace the flow meter.

4、Install the flow meter to ensure that the center of the flow meter is aligned with the center of the pipeline, without misalignment, and that the flow meter is not affected by external forces (including axial and tangential).

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