Thermal mass flowmeters-Insertion, in-line and portable models: MASS FLOWMETER FOR GAS
This model is a Thermal Mass Flowmeter for gas measurement. Its measuring principle takes advantage of the fact that calorie amount taken away from the heated sensor by a fluid flow is correlated to the mass flow. It comes in three designs – retractable insertion, in-line, and portable type. The sensor inserted in the process line samples a representative flow-rate across the line to infer the total flow-rate.
Specifications:
Type | Insertion type | In-line type | Portable type | |
Nominal size | 65mm and over | 10 to 100mm | 65mm and over | |
Flow range (depend on fluid kind and bore) | 0 to 56500Nm3/h | 0 to 1650Nm3/h | 0 to 37600 Nm3/h | |
Connection rating | JIS 10K, ANSI 150, 300 flange | Screw-in | ||
Screw-in | – | |||
Applicable fluid | Air, nitrogen, natural gas, ammonia, helium, hydrogen etc. | Air, nitrogen | ||
Accuracy | ± 2% of FS | |||
Fluid temp. range | – 40 to + 200°C (std.) (High temp. model: max. 500°C) (Explosion-proof: – 20 to + 60°C) | – 40 to + 125°C (std.) (Explosion-proof: – 20 to + 60°C) | – 40 to + 200 (std.) (High temp. model: max. 500 °C) | |
Max. operating pressure | 2 MPa | 1 MPa | ||
Material | Sensor | Alloy C276 (Hastelloy C276 equivalent) | Alloy C276 | |
Sensor support | SUS316L or Alloy C276 (Hastelloy C276 equivalent) | SUS316L Configuration | ||
Configuration | IP66, explosion-proof | Non-waterproof, non-explosion-proof | ||
Output | Flow analog, flow pulse, alarm | Flow analog (option) |