HOFFER-HFCTM

Writer： admin Time：2024-04-07 13:03 Browse： ℃

HOFFER’s HFCTM uses two tubes formed into a U-shaped geometry in a parallel arrangement which are vibrated at their resonant frequency by coils. Any mass flow passing through the tubes will generate Coriolis forces, which appear whenever a mass moves radially in a rotating system. The forces have opposite effects on the inlet and outlet side, deforming each pipe by a minor amount. The excursion of the pipes is detected by the inlet and outlet-side sensors. The phase shift between the rotational frequencies of both pipes is directly proportional to the mass flow rate and the resonant frequency of both pipes changes in accordance with the density of the fluid media. This effect allows for measurement of the density. Using only one sensor, both density and temperature measurements may be performed as the extent of deformation of the pipes is temperature-dependent. Therefore, the temperature is measured for compensation purposes.  Using only one primary sensor, values including mass flow, density, and temperature may be measured. The HFCTM's microprocessor-based circuitry allows for conversions such as volumetric flow and % concentration to be calculated.

Ÿ  Suitable for aggressive and contaminated media

Ÿ  Measurement of mass flow, density, temperature and volume flow

Ÿ  High rotation frequency and well-balanced measuring pipes

Ÿ  Excellent purging and sterilization qualities due to a construction free of

dead spots

Ÿ  Operation up to -200 °C to +300 °C

Ÿ  Individual 8-point-calibration including report

Ÿ  EX protection (optional)

Ÿ  Measurement of medium: Liquid

Ÿ  Range: 0.01% ~ 99.99%

Ÿ  Line Sizes:   1/8”~8”(3~200 mm)

Ÿ  Process Connections: Flanged

Ÿ  Accuracy: ±0.1%, ±0.15%

Ÿ  Repeatability: ±0.075% of reading

Ÿ  Frequency:   10-2000 Hz

Ÿ  Million Gallon,

Ÿ  Zero Stability: 0.1% full-scale

Ÿ  Zero Drift (%FS / °C): 0.005

Ÿ  Process Temperature:

Ÿ -58~392 °F (-50~200 °C) -std

Ÿ -450~392 °F (-210~200 °C) –opt

Ÿ  Ambient Temperature: -55~292 °F (-50~100 °C)

Ÿ  Max Working Pressure: 360~930 psig (2.5~16MPA)

Ÿ  Measuring Tube Mat’l: SS per DIN1.4571 (AISI 316Ti) standard

Ÿ  Housing Material: SS #304

Ÿ  Power Supply: 24 VDC, ± 20%; 86~260VAC,50~60Hz

Ÿ  Power Consumption: Less than 6W

Ÿ  Outputs.: 4~20 mA, 0~10 kHz pulse, RS485