CS Instruments VD 500 For FAD Measurement

CS Instruments VD 500 For FAD Measurement the integrated precise differential pressure sensor measures the differential pressure/ dynamic pressure at the sensor tip. The pressure depends on the respective gas velocity. The flow is therefore easy to determine by means of the pipe diameter. The additional measurement of temperature and absolute pressure and calculation of the relevant density means that measuring can be carried out for various gases, a wide variety of temperatures, and pressures.

Benefits at a glance:
• Particularly suitable for extremely high flow rates
• Extremely fast response time: 100 ms
• Flow, total consumption, temperature, and pressure
• Measurement at high temperatures, max. temperature 180 °C
• Measurement in various gases by selecting the gas type, on request
• Can be used in pipes from DN 20 to DN 500
• Installation via 1/2″ ball valve under pressure
• RS 485 interface (Modbus-RTU), 4…20 mA, pulse output as standard

Features

Particularly suitable for extremely high flow rates
Extremely fast response time: 100 ms
Flow, total consumption, temperature and pressure
Measurement at high temperatures, max. temperature 200 °C
Measurement in various gases by selecting gas type, on request
Can be used in pipes from DN 20 to DN 500
Installation via 1/2″ ball valve under pressure
RS 485 interface (Modbus-RTU), 4…20 mA, pulse output as standard

Applications

FAD measurement of compressors
Compressed air audits
Efficiency measurement of compressed air systems
Measurement downstream of the compressor
Measurement at high temperatures
Measurement of fast processes

Specifications

Measuring range: up to 224 m/s / 600 m/s
Measured medium: Air, non-aggressive gases
Accuracy:
(m.v.: of meas. value) (f.s.: of
full scale)
± 1.5% of m.v. ± 0.3% of f.s.(20…224 m/s)
± 1.5% of m.v. (> 224 m/s)
Measuring principle: Diff erential pressure
Measuring span: 1:10
Response time: t 99: < 1 sec.
Temperature of the medium: -30 °…+180 °C
Operating pressure: Max. 20 bar
Ambient temperature: -30 °…+70 °C
Screw-in thread: G 1/2″, ISO 228
Power supply: 18…36 VDC, 5 W
Signal outputs: As standard:
RS 485 (Modbus-RTU), 4…20 mA, pulse
Optional:
Ethernet Interface (PoE), M-Bus