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Contact number: 18661273788 Company address: 11-2-4, jinshan fourth branch road, beitang district, wuxi city, jiangsu province Mail box: sales@wxobai.com
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Hot gas mass flowmeter
Product Detail



Hot gas mass flowmeter

Wuxi oubai electromagnetic flowmeter is manufactured with the latest technology of contemporary electromagnetic flow and has the following characteristics:

Thermal gas mass flowmeter is a kind of instrument which USES the principle of thermal diffusion to measure gas flow. The sensor consists of two reference levels of thermal resistance (RTD). One is the speed sensor RH, and the other is the temperature sensor RMG, which measures changes in gas temperature. When the two RTDS are placed in the gas under test, the sensor RH is heated and the other sensor RMG is used to sense the temperature of the gas under test. As the gas flow rate increases, the airflow takes away more heat, and the temperature of the sensor RH decreases.



Measuring range

0.4... 92.7 sm/s *(standard range correction)

0.8... 185 sm/s *(extended range correction)

(for flow measurement ranges of different pipe diameters, please refer to the volumetric flow range table)

*sm/s: standard flow rate

precision(1.5% reading + 0.3% full range)
A condition that guarantees accuracy

Environment/process temperature 23 ° C + 3 ° C

Environment/process humidity < 90%, no condensation

Process pressure is 0.6mpa

repetitive  0.25% of the reading
t95The reaction time<5s
Sampling rateThe display and output refresh every 20, 0 milliseconds
Pipe diameter

Insert: DN25... DN1500

Pipeline type: DN15... DN80

Process connection  

Insertion: "G thread (ISO 228-1)

Pipe type :R type thread (ISO 7-1), flanges EN 1092-1, ANSI 16.5, JIS B2220

Measuring the dielectric

Any gas whose composition and mixing ratio are known and constant, standard gas list,

See ordering information medium temperature

Operating temperature  

- 40... + 150 ° C (medium temperature, plug-in)

- 40... + 100 ° C (medium temperature, pipeline)

- 40... + 65 ° C (ambient temperature)

Operating pressure  

1.6 MPa (insert type)

4.0mpa (pipeline type)

Analog output  

2 x 4... 20 mA, load * high for 500 ohms, active or passive output optional,

Measurement channel optional, output range programmable

Pulse/alarm output  1 pulse for every 1, 10 or 100 consumption units, alarm programmable
The power supply  16-30 VDC, 7 W
The shell  NEMA 4X, IP 67
Sensor materialType 316L stainless steel
certification  CE, RoHS
ATEX : II 2 G Ex d IIC T4(Optional)
Field bus (optional)  MODBUS
Configuration interface

Hill service package



1, international first-class technology, imported equipment fine processing, leather durable, good precision and repeatability.

2, the use of imported German military bearings, oil lubrication guarantee at any time can be excellent and stable measurement, the highest can reach 0.5 class.

3. Wide range and low initial flow.

4. The theme adopts one-time casting molding technology, and the impeller is made of aluminum alloy; Corrosion resistance, high pressure resistance, impact resistance

5, cast aluminum explosion-proof square meter head, the meter head can be 350 degrees free rotation to facilitate the viewing of data

6, the body with rectifier greatly shorten the distance before and after the straight pipe

7. The exit is equipped with a filter net to effectively filter the damage of small and medium particles to the impeller

8. Large LCD display instantaneous and cumulative flow, temperature, pressure, standard condition value and working condition value

9. It is manufactured in strict accordance with national standards and enterprise standards and has obtained the type evaluation certificate and national measuring instrument license issued by the national measures

10. The product has passed high and low level interference test, and has excellent low-voltage and high-voltage metering performance

11, the use of international advanced design concept, can greatly extend the service life of the instrument

12. The patented integrated rectifier is adopted, which has low requirements for the installation of the front and rear straight pipe sections of the flow meter (no requirements for the first 2DN and the downstream).

13, independent movement design, good interchangeability, easy maintenance

14. Special time display and real-time data storage functions ensure that internal data are not lost and stored permanently

15, explosion-proof marks for Exia Ⅱ CT6 GB, protective class IP65

16. The liquid crystal display with high contrast can display the total amount, flow rate, time and percentage of flow rate in working conditions, etc

17. It can be used in conjunction with the IC card controller of the company to realize the prepayment function (paying before using gas).

18. It can be combined with our intelligent LNG\CNG gas station management system






Customer Cases

Customer Cases

Customer Cases

Product name:
electromagnetic flowmeter Date of purchase: May 2015 Purchase quantity: 8 sets
Product name:
vortex street flowmeter
Date of purchase: July 2016
Purchase quantity: 5 sets
Wuxi Shenli
Buy product name:
differential pressure transmitter
Date of purchase: March 2017
Purchase quantity: 7 sets
Walter machinery
Purchase product name:
digital display table
Date of purchase: April 2018
Purchase quantity: 11 sets
Wanyuan environment
Wuxi oubai instrument technology co., ltd. has a number of excellent r & d team, and with jiangnan university, wuxi business school and other universities and enterprises cooperation. The company has a sound sales and after-sales service system and efficient marketing team; The product sales coverage keeps growing all the year round.
In the industry, it is one of the production and sales enterprises of flow meters with a complete range of products and a large scale, which produces good electromagnetic flowmeters, liquid flowmeters, gas flowmeters, etc.
The company focuses on user practice and product research and development, and has obtained a number of patents and research and development results, and has mature experience in the research and development, design, manufacturing and installation of flow meter equipment in various industries.
7 * 24-hour service system, one year guaranteed, so that you at any time product problems we can solve as soon as possible for you, to ensure the interests of customers;
Set up a group of professional teams, engaged in design, production, sales and installation services;
To the well-known large projects have done supporting, set up many classic cases;
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Address: 11-2-4, jinshan fourth branch road, beitang district, wuxi city, jiangsu province Hot line: 0510-89052999 0510-82358878 The true: 0510-89052999 Hand machine: 18661273788
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