Flow Switch SummaryThe RF83 was the first insertion type
reverse flow switch designed for detecting bi-directional product flow
and combines operational simplicity with FCI's high standard of quality
and reliability.
Equipped with special dual switch point electronics and a sensor probe
shroud assembly, the RF83 can indicate either the direction of product
flow or loss of process flow.
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Applications |
Reverse vent flow monitoring |
Flow direction detection |
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Reverse pressure dection |
Value switching verification |
SpecificationsFor Flow Service - Setpoint Range:
Water-based Liquids:
0.05 to 0.5 fps [0.02 to 0.2 mps]
Air/Gas:
1 to 40 sfps [0.3 to 12 smps] at standard conditions of 70° F [21.1° C]
and 14.7 psia [1.013 bar(g)].
Repeatability: 1% of full signal range at constant process
conditions
Response Time: As low as 5 seconds
Enclosure: Powder coated aluminum enclosure is rated for
hazardous location use (Class I and II, Division 1 and 2, Group B, C, D,
E, F and G; and EEx d IIC) and resists the effect of weather and
corrosion (NEMA and CSA Type 4X and equivalent to IP66). Stainless steel
is available as an option.
Agency Approvals: Contact FCI.
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Flow Element
Materials of Construction: All wetted surfaces 316 stainless
steel with nickel braze per process specification AMS 4777.
Process Connection:
Standard: 1.25 inch male NPT.
Optional: Flanges or retractable sensing element.
Insertion Length: 2 inches [51 mm]
Customer specified lengths are available as an option.
Operating Temperature: -100° to +350° F [-73° to +177° C]
Operating Pressure: To 2000 psig [138 bar(g)]
Control CircuitOperating Temperature: -40° to +140° F
[-40° to +60° C]
Input Power: 115 ± 15 Vac, 230 ± 30 Vac (50/60 Hz); or 22 to 30
Vdc; 6 watts maximum.
Relay Contacts: 2 SPDT rated 6 amps at 115 Vac, 240 Vac or 24 Vdc.
Electrical Connection: 1 inch female NPT
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Optional N.I.S.T. Flow Calibration ServicesFactory N.I.S.T. calibration in air or water is available as an option
for customer specified setpoint(s) or a flow curve based on the media
ranges specified above |
