ANSI Thermal flowmeterDetailed product description：

Introduction to ANSI Thermal Flow Meter

A thermal flowmeter consists of a ceramic semiconductor sensor, a temperature sensor, and a control device.
Ceramic semiconductor sensors have the characteristic of actively changing their impedance with changes in ambient temperature.
If the flow velocity of the fluid changes, the surrounding temperature will also change, and the impedance of the ceramic semiconductor sensor itself will change
Transform. Utilize this characteristic to measure the velocity and flow rate of fluids. In order to compensate for the temperature variation of the fluid, the thermal mass flowmeter is also equipped with a temperature compensation sensor. The reflection of nonlinear characteristics of fluids by ceramic semiconductor sensors requires data processing by an embedded microprocessor.

Technical specifications of ANSI thermal flowmeter
precision
± 2% of readings within the calibration range of 10~100%
Within 10% of the calibration range, ± 0.5% of the full scale
Within 50sfpm (standard feet per minute, i.e. 0.25nm/s), ± 2% of full scale
repeatability accuracy
± 0.2% of full range
pressure coefficient
Negligible within ± 50 PSI (3.4 barg).
High voltage requires specialized calibration
response time
Reached 63% of the final speed value in 1 second
temperature coefficient
User specified conditions within ± 50 ℉, with ± 0.02% of readings per ℉
User specified conditions within ± 50 ℉~100 ℉, ± 0.03% of readings per ℉
Within ± 25 ℃, the user specifies the conditions, with a reading of ± 0.04% per ℃
Within ± 25 ℃~50 ℃, the user specifies the conditions, with a reading of ± 0.06% per ℃
physical properties
Wet material
Probe: 316L stainless steel, sensor: ceramic
Shell protection level
Dangerous area (IP67), NEMA 4X (IP65) are all made of plastic plated cast aluminum

connect
Two 3/4-inch NPT hazardous areas (IP67)
A 1/2 inch NPT NEMA 4X (IP65)

Installation method (optional)
ANSI 1-inch 150 pound flange
1/2 inch pipe sleeve with 1/2 inch NPT male thread
certificate
EEx Cenelec
FM
ISO9001 certified by UKAS

Job Characteristics (I)
gas
Suitable for most gases of 316L stainless steel
Quality flow range
Based on air and nitrogen, the minimum value ranges from 0 to 200sfpm (0 to 1nm/s), and the maximum value ranges from 0 to 6000sfpm (0 to 30nm/s)

gas pressure
Medium pressure: maximum value of 500psi (20barg)
1-inch 150lb flange (15 ℉~176 ℉): maximum value 185PSI (12.8barg)
Low pressure hot bolt: maximum value of 100 PSI (7 barg)
High pressure hot bolt: maximum value of 286PSI (20barg)