測量原理

渦街

主要特點

The flowmeter for accurate steam flow measurement with wet steam detection, available as compact or remote version. Integrated temp. measuring for mass/ energy flow of saturated steam. Suitable for a wide range of applications; optimized for steam applications. 

特點

Highest process safety – dualsens version enables redundant measurement. High availability – proven robustness, resistance to vibrations, temperature shocks & water hammer. No maintenance – lifetime calibration. Wet steam detection and measurement for DN 25 to 100 (1 to 4"). Inlet run compensation. 

Transmitter features

Convenient device wiring – separate connection compartment. Safe operation – no need to open the device due to display with touch control, background lighting. Integrated verification – Heartbeat Technology™. Display module with data transfer function. Robust two‐chamber housing. 

直徑

·                          DN 15 to 300 (½ to 12") 

Wetted materials

·                          Measuring tube: 1.4408 (C3FM); CX2MW similar to Alloy C22, 2.4602

·                          DSC sensor: 1.4435 (316/316L); UNS N06022 similar to Alloy C22, 2.4602

·                          Connection: 1.4404 (F316/F316L); CX2MW similar to Alloy C22, 2.4602; 1.4408 (CF3M) 

Measured variables

·                          Volume flow, mass flow, corrected volume flow, energy flow, heat flow difference, temperature 

測量誤差

·                          Volume flow (liquid): ±0.75 %

·                          Volume flow (steam, gas): ±1.00 %

·                          Mass flow (liquid): ±0.85%

·                          Mass flow (steam, gas): ±1.7 % 

量程

·                          Liquid: 0.16 to 2412 m3/h (0.09 to 1420 ft3/min)
depending on medium: water with 1 bar a, 20 °C (14.5 psi a, 68° F)

·                          Steam, gas: 2 to 32 166 m3/h (1.18 to 18 932 ft3/min)
depending on medium: steam with 180 °C, 10 bar a (356 °F, 145 psi a); air with 25 °C, 4.4 bar a (77 °F, 63.8 psi a) 

壓力范圍

·                          PN 40, Class 300, 20K 

過程溫度

·                          Standard: –40 to +260 °C (–40 to +500 °F)