Industrial High Precision Thermal Gas Mass Flowmeter

• Customization: Available
• After-sales Service: 1 year warranty lifelong free technical support
• Warranty: 1 year warranty lifelong free technical support
• Model NO.: T4205
• Measuring Medium: Gas
• Output Signal Type: Digital Type
• Production Process: Integration
• Material: Stainless Steel
• IP Rating: IP65
• Certification: ISO
• Customized: Non-Customized
• Type: Gas FlowMeter
• Structure Type: Insertion Type, Pipeline Type
• Accuracy Grade: +/- 1~2.5%
• Velocity range: 0.1~120 Nm/s
• Power supply: DC 24V or AC220V < 18W
• Response speed: 1s
• Alarm: 1-2 Normally open contact, 10A/220V/AC, 5A/30V/DC
• Transport Package: Standard Export Packing
• Specification: DN15~4000mm, DN15~2000mm
• Trademark: Twinno
• Origin: Shanghai, China
• HS Code: 90
• Production Capacity: 2000/Month

Product Description

T4205 Thermal Gas Flowmeter

                    

1.Overview
The thermal gas flowmeter is designed based on the principle of thermal diffusion. It has the advantages of small volume, high digitization, easy installation and accurate measurement.

   The sensor is composed of two benchmark platinum resistance temperature sensors. When the meter is working, one sensor continuously measures the temperature T1 of the medium. Another sensor, which heats itself to a temperature higher than the temperature T2 of the medium, is used to detect the flow rate of the fluid body, called a velocity sensor. The temperature Δ T = T2, T1, T2 > T1, when the fluid flows through, due to gas molecule collision sensors and T2 heat away, make the T2 temperature drop, to make Δ T stay the same, will improve the T2 power supply current, gas flow velocity in the heat fast, take away the more heat, gas flow rate and increase the heat there is a fixed function relationship, this is the principle of constant temperature difference.

The constant temperature differential heat gas flowmeter is not only not affected by temperature, but also not affected by pressure.


2.Product features
Thermal gas flow meter has the following technical advantages:
*The qualified flowmeter is convenient and accurate for gas flow measurement without temperature and pressure compensation. The mass flow rate or standard volume flow rate of the gas can be obtained.
*Wide measurement range.Gas flow rates as high as 100Nm/s and as low as 0.1Nm/s can be measured.It can be used for gas leak detection.
*Good seismic performance and long service life.The sensor has no moving parts and pressure sensing parts, and is not affected by vibration on the measurement accuracy.
*Easy installation and maintenance. Installation and maintenance can be achieved without stopping production when site conditions permit. (special customization is required)
*Digital design. Overall digital circuit measurement, accurate measurement, easy maintenance.
*Adopted Rs-485 communication or HART communication,can realize factory automation and integration.

3.Specifications

Performance	Specifications
Structure	Insertion Type	Pipeline
Measuring media	Various gases (except for acetylene gas)
Pipe diameter range	DN15~4000mm	DN15~2000mm
Velocity range	0.1~120 Nm/s
Accuracy	±1~2.5%
Working temperature	Sensor:-40~+220ºC Converter:-20~+45ºC
Working pressure	Media pressure≤ 2.5MPa	Media pressure≤ 4.0MPa
Power supply	DC 24V or AC220V≤ 18W
Response speed	1s
Output signal	4-20mA(photoelectric isolation, maximum load 500Ω),pulse,RS-485(photoelectric isolatio),HART protocols
Alarm	1-2 Normally open contact,10A/220V/AC,5A/30V/DC
Type of supply	Split structure, integrated structure
Pipeline material	carbon steels,stainless steel,plastic
Display	Four lines LCD display
Display content	Mass flow, volume flow under normal condition, integrated flow, standard time and cumulative running time, standard velocity,etc.
IP rate	IP65
Sensor materials	Stainless Steel	Stainless steel,carbon steels

 

4. Installation

4.1 Instrument installation and connection
     
                           
Figure1 Applicable tube's diameter DN100-DN500               Figure 2 Applicable pipe diameter DN10-DN80
Simplified thermal gas flowmeter                                                    Full tube thermal gas flowmeter


Figure 3 Applicable pipe diameter DN100-DN4000
On-line installed thermal gas mass flowmeter (customized for special models)

After Sales Service

* The warranty period is 12 months from commissioning acceptance date on. In addition, we supply 1 year warranty and lifelong free technical guiding and training.
* We guarantee the maintenance time no more than 7 working days and response time within 3 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.




FAQ

What is the mini order quantity?
MOQ: generally 1 unit/piece/set

What payment methods are supported?
Payment method: By T/T, L/C, etc.
Payment terms: Generally, We accept 100% T/T in advance, balance before shipment.

What are the available delivery methods?
Our port location: Shanghai
Delivering to: Worldwide
Delivering method: by sea, by air, by truck, by express, combined transportation

How long is the product date of delivery probably?
Delivery date differs with product type, order quantity, special requirement etc. Usually our big machine delivery date is around 15 ~ 30 days; test equipment or analyzer delivery date is around 3~7 days. Some products have stock, contact us anytime to get more information.

How long is the warranty period?
We warrants the plant supplied under agreed specification against defects in material and workmanship under normal use and service for a period of 1 years after start up of the system.

How is the technical services on the product?
You are welcome to contact us any time if you have any technical question. We will response promptly and answer to your satisfaction. If required and necessary, Engineer available to service and provide technical support for machinery overseas.

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