The JS-100A series thermal gas mass flowmeter is an instrument that uses the principle of thermal conduction to measure fluid flow rate. The instrument uses the constant temperature difference method to accurately measure gas mass flow rate. Thermal gas mass flow meters have the advantages of small volume, high degree of digitization, easy installation, and accurate measurement.  

1、 Technical advantages of the product:

1. Proprietary traffic data model algorithm; Fuzzy theory control algorithm for temperature and humidity;

2. High performance intelligent microprocessors and analog-to-digital/analog-to-digital conversion chips;

3. Wide range ratio 100:1; Large caliber, low flow rate, negligible pressure loss;

4. Directly measure mass flow without temperature and pressure compensation;

5. Low flow velocity measurement is more sensitive;

6. Convenient design and selection, easy installation and use;

7. Suitable for measuring the flow rate of various single or mixed gases.

2、 Product features:

1. Adopting stable technology platinum RTD sensor

2. Adopting proprietary technology "balanced structure packaging" and self compensating medium temperature

3. Proprietary algorithm that can achieve high linearity, high repeatability, and high accuracy

4. Range ratio width 100:1, expandable according to user requirements

5. It can achieve measurement of large pipe diameter and small flow rate, with a lower limit flow rate that can be measured as low as zero and a resolution of 0.001m/s

6. No movable parts, negligible vibration impact

7. The requirement for straight pipe section is not high, 1-2D

8. Independent of the temperature and pressure of the medium

9. Proprietary high-temperature algorithm, the medium temperature can reach+510 ℃,

10. Using high humidity algorithm to achieve high-precision measurement

11. Enter 12 point dynamic correction for traffic signals, with built-in 10 point correction

12. Online dynamic correction of current/voltage output

13. No impact on small particles such as dust

14. Online uninterrupted loading and unloading, easy maintenance

3、 Application scenarios:

1. Public works - monitoring of electricity, gas, and water treatment

Gas in pipelines; Universal system; Biogas; Gas; natural gas; liquid gas; Preheating air for boiler

2. Oil and gas industry

Energy exchange; Gas recovery from filling wells; Gas metering; Gas quality analysis; Leakage test; Natural gas measurement; Monitoring of Torch Gas

3. Power industry

Gas measurement during gas distribution in fuel systems; Measurement of various gases in boilers and auxiliary systems; Gas measurement in gas furnaces; Hydrogen measurement; Measurement of primary and secondary air in power plant blast furnaces

4. Chemical industry

Smoke circulation monitoring; Gas flow measurement in sampling system; Gas flow measurement of induced draft fan; Measurement of ammonia gas in fertilizer plants; Measurement of various gas flow rates in battery factories

5. Metallurgical industry

Gas filling measurement in steel plants; Measurement of blast furnace gas in ironworks; Measurement of coke oven gas in coking plants; Measurement and control of heating furnace gas (blast furnace gas, coking gas, natural gas, etc.) in steel rolling mills; Control of gases such as hydrogen, oxygen, and nitrogen in heat treatment quenching furnaces, etc

6. Pulp and paper industry

Measurement of gases in wastewater treatment systems; Smoke flow monitoring; Boiler recovers secondary/tertiary air; Measurement of gas and air supply for boilers

7. Food and pharmaceutical industry

The addition of fresh air during processing and construction; CO2 treatment in breweries; The flow rate of hot air in the bottle purifier; Measurement of gas flow rate during thermal oxidation process; Ventilation system; Boiler inlet, exhaust gas, process control

8. Environmental Protection

Gas measurement during biogas utilization process; Measurement of chlorine gas during chlorine treatment process; Gas measurement in aeration tanks during sewage treatment process; Monitoring the emissions of SO2 and NOX in the exhaust of chimney and flue gas

9. Other industries

Factory compressed air measurement; Coal powder combustion process with powder/gas ratio control fuel; Control of Hot Gas Flow from Vertical Grinding Machines in the Cement Industry.

1. Measurement range: 0.5-100Nm/s (20 ℃, 101.33KPa)

2. Accuracy: ± 1% reading ± 0.5% full-scale

3. Range ratio: usually 100:1 (depending on the calibrated flow range)

4. Pipe diameter range: 15mm~6000mm

5. Application scope: Suitable for various types of single or mixed gases. Containing dust, sand, moisture, and various corrosive gases

6. Environmental temperature range: -40 ℃ to+85 ℃ (no display); -30 ℃~+70 ℃ (with display); Humidity less than 90% RH

7. Medium temperature range: -40 ℃~+100 ℃; -40℃~+200℃; -40℃~+450℃; -40℃~+510℃

8. Sensor diameter: φ 3, φ 2.5

9. Insertion sensor probe diameter: φ 19 (standard) φ16、φ12

10. Sensor material: 316 stainless steel, Hastelloy, titanium

11. Probe material (protective cover): 316 stainless steel (standard), Hastelloy alloy

12. Bidirectional measurement of medium flow rate

13. Analog output: Flow rate: 4-20mADC, temperature: 4-20mADC, load: 1000 Ω

14. Accumulated pulse output

15. Enter 12 non-linear corrections with built-in 10 non-linear corrections

16. Communication: Serial port output RS232/RS485

17. Power supply: 24VDC/600mA; 220VAC/2W； 110VAC/3W

18. Alarm: 1-2 relay outputs, 5A/220V, 5A/30VDC, input settings??

19. Large screen LCD display: seven digit instantaneous flow, eight digit cumulative flow

20. Process pressure: 1.6Mpa (full range 20MPa)

21. Installation process form: Insertion type (card sleeve, card sleeve+ball valve, flange connection) is suitable for pipeline installation above DN80, while pipeline type (flange, threaded connection) is suitable for pipeline installation above DN15.

22. Explosion proof level: intrinsic safety type (ia Ⅱ CT5), explosion-proof type (Exd Ⅱ CT4)

23. Protection level: IP65

For more product information, please consult our toll free hotline at  +0086 400 880 6367