Explosion proof oxygen flowmeter oxygen flowmeter direct sales

Description :

　　I. Overview

　　This product adopts advanced ultra-low power single-chip microcomputer technology to develop a new intelligent instrument that integrates turbine flow sensor and display integration. The intelligent gas turbine flowmeter itself does not have on-site display function and only transmits and outputs flow signals remotely.

　　2、 Product Features

　　Integrating gas turbine flow sensor and volume correction instrument, it can automatically track and correct the temperature and pressure of the measured gas, directly measuring the standard volume flow rate and total amount of gas.

　　The digital temperature and pressure sensors are externally mounted and communicate data with the calibration instrument through an I2C interface. The measurement accuracy is independent of the calibration instrument and can be directly exchanged for the same specifications, making calibration and use convenient.

　　Adopting low-power high-tech, it can work with both internal and external power sources, and the internal battery can be used continuously for more than five years.

　　Adopting precision bearings specifically designed for instruments imported from Germany, with high accuracy, good stability, and wide range.

　　The carefully designed flow channel structure avoids the flow of air between the bearings and improves the medium adaptability of the turbine flowmeter.

　　The unique reverse thrust structure and sealing structure design ensure the long-term reliable operation of the bearing.

　　Adopting a new signal generator without magnetic attraction, it has the advantages of high sensitivity and low starting flow rate.

　　Independent movement design, good interchangeability and easy maintenance.

　　Design a rectifier with excellent rectification performance, with very low requirements for the front and rear straight pipe sections (front ≥ 2DN, rear ≥ 1DN).

　　A GPRS wireless data transmission system can be formed by pairing with a data collector through an RS485 interface, which facilitates automated management. The RS485 communication protocol complies with the MODBUS specification.

　　The header can rotate 180 degrees freely, making installation convenient.

　　3、 Technical parameters

　　1. The flow range listed in the table is the flow range calibrated at the time of product delivery (at room temperature and atmospheric pressure, the medium is air 1.205Kg/m3); As the pressure increases, the flow range also expands.

　　2. Standard state conditions; P=101.325kPa，T=293.15K。

　　3. Usage conditions: Environmental temperature: -30~+60 ℃, medium temperature: -20~+80 ℃, relative temperature: 5%~95%, atmospheric pressure: 86kPa~106kPa.

　　4. Electrical performance indicators

　　Working power supply: external power supply:+24VDC, internal power supply: 3.6V lithium battery, overall energy consumption: external power supply,<1W, internal power supply,<0.3MW, lithium battery can be used for more than two years.

　　Output mode: frequency signal, 4-20mA signal, RS485 communication (capable of transmitting temperature, pressure, instantaneous flow rate, and cumulative flow rate parameters)

　　4、 Installation

　　1. The flowmeter must be installed horizontally on the pipeline (with the pipeline tilted within 5 degrees), and the axis of the flowmeter should be concentric with the axis of the pipeline during installation, with the flow direction consistent.

　　2. The upstream pipeline length of the flowmeter should have an equal diameter straight pipe section of not less than 2D. If the installation site permits, it is recommended that the upstream straight pipe section be 20D and the downstream be 5D.

　　3. Requirements for piping: The inner diameter of the upstream and downstream piping at the flowmeter installation point should be the same as the inner diameter of the flowmeter.

　　4. Requirements for bypass pipe: In order to ensure that the maintenance of the flowmeter does not affect the normal use of the medium, shut-off valves (globe valves) should be installed on the front and rear pipelines of the flowmeter, and a bypass pipe should also be set up. The flow control valve should be installed downstream of the flowmeter. When using the flowmeter, the upstream shut-off valve must be fully opened to avoid unstable flow of fluid in the upstream section.

　　5. Requirements for external environment: Flow meters are better installed indoors. If they must be installed outdoors, they must be protected from sunlight and rain Lightning protection measures should be taken to avoid affecting the service life.

AfterSalesService :

• Explosion proof oxygen flowmeter