תיאור
Flow Rate Monitoring – RFO Type
4.5 to 24 VDC Pulsed Output
GEMS Sensors popularized the RotorFlow’s paddlewheel design by combining high
visibility rotors with solid-state electronics that are packaged into compact, panel
mounting housings. They provide accurate flow rate output with integral visual
confirmation…all with an unprecedented price/performance ratio. RFO Types feature a
VDC pulsed output.
Typical Applications
• Water Purification/Dispensing Systems • Chemical Metering Equipment
• Lasers and Welders • Water Injection Systems
• Semiconductor Processing Equipment • Chillers and Heat Exchangers
Specifications
Wetted Materials
Body Brass, 316 Stainless Steel or Polypropylene
(Hydrolytically Stable, Glass Reinforced)
Rotor Pin Ceramic
Rotor PPS Composite, Black
Lens Polysulfone1
O-Ring Viton® (Alloy Bodies); Buna N (Polypropylene Body)
Low Flow Adaptor Glass Reinforced Polypropylene
Operating Pressure, Maximum Optional SS Face Plate 500 PSI
Brass or Stainless Steel Body 200 PSIG (13.8 bar) @ 70°F (21°C),
100 PSI (6.9 bar) Max. @ 212°F (100°C)1
Polypropylene Body 100 PSIG (6.9 bar) @ 70°F (21°C),
40 PSI (2.8 bar) Max. @ 180°F (82°C)
Operating Temperature,
Brass or Stainless Steel Body -20°F to 212°F (-29°C to 100°C)
Polypropylene Body -20°F to 180°F (-29°C to 82°C)
Electronics 150°F (65°C) Ambient
Viscosity, Maximum 200 SSU
Input Power 4.5 VDC to 24 VDC
Output Signal 4.5 VDC to 24 VDC Pulse. (Sourcing)
Pulse Rate Dependent on Flow Rate, Port Size and Range.
Current Consumption 8 mA, No Load
Current Source Output, Max. 70 mA
Frequency Output Range 15 Hz (Low Flow) to 225 Hz (High Flow)
Accuracy See Table Below
Electrical Termination 22 AWG PVC-Jacketed, 24˝ Cable. Color Coded:
Red = +VDC; Black = Ground; White = Signal Output