CS Instruments VA 500 Flow Sensor for Compressed Air and Gases (185 m/s)

Parameters: m³/h, l/min (1000 mbar, 20 °C) in case of compressed air or Nm³/h, Nl/min (1013 mbar, 0 °C) in case of gases

Units adjustable via keys at display: m³/h, m³/min, l/min, l/s, ft/min, cfm, m/s, kg/h, kg/min, g/s, lb/min, lb/h

Adjustable via keypad: Diameter for volume flow calculation, counter resettable

Sensor: Thermal mass flow sensor

Measured medium: Air, gases

Gas types are adjustable over CS service software or CS data logger: Air, nitrogen, argon, helium, CO2, oxygen, vacuum

Measuring range: See table page 81

Accuracy: (m.v.: of meas. value) (f.s.: of full scale)

± 1.5% of m.v. ± 0.3 % of f.s.

± 1% of m.v. ± 0.3% of f.s.

Operating temperature: -30...110 °C sensor tube; -20...+70 °C housing

Operating pressure: -1…50 bar (for pressure > 10 bar - order additional high-pressure protection)

Digital output: RS 485 interface, (Modbus-RTU), optional: Ethernet interface PoE, M-Bus

Analogue output: 4…20 mA for m³/h or l/min

Pulse output: 1 pulse per m³ or per litre electrically isolated. Pulse weight can be set on the display. Alternatively, the pulse output can be used as an alarm

Supply: 18…36 VDC, 5 W

Burden: < 500 Ω

Housing: Polycarbonate (IP 65)

Sensor tube: Stainless steel, 1.4301, Installation length 220 mm, Ø10 mm

Mounting thread: G 1/2″, G 1/2″ NPT male thread

Ø housing: 65 mm

Mounting position: any