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Flow Switch 12-64B BASIC
Flow Switch SummaryFCI's first and most widely used flow
switch monitor, the 12-64B BASIC insertion type flow switch provides low
flow detection over a wide flow range. Any type of external control
system can be actuated from either the normally open or closed output
contacts of the instrument's on-board control circuit board DPDT relay.
The flow sensing element of the instrument and its modular control
circuit are mounted in a rugged aluminum enclosure that is Factory
Mutual, CSA, CENELEC and CE Mark approved for hazardous location
service.
The wetted surfaces of the sensing element are 316 stainless steel with
nickel-braze providing resistance to most liquid, gaseous and
particulate media.
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Applications |
Pump protection |
Safety spray nozzle monitoring |
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Cooling water/heat exchangers |
Oil well system testing |
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Drain line flow |
Relief valve monitoring |
SpecificationsSetpoint Range:
Water-based Liquids:
0.015 to 0.5 fps [0.005 to 0.15 mps]
Hydrocarbon-based
Liquids:
0.01 to 2.0 fps [0.003 to 0.61 mps]
Air/Gas:
1.0 to 125 sfps [0.3 to 38 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 10 seconds.
Enclosure: Epoxy 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).
Agency Approvals: FM, CSA, CENELEC and CE Mark.
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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: 1 inch male NPT
Insertion Length: 1.2 or 2 inches [30 or 51 mm]
Operating Temperature: -100° to +350° F [-73° to +177° C]
Operating Pressure: To 3000 psig [207 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: DPDT rated 2 amps at 115 Vac and 24 Vdc, or 1 amp
at 230 Vac.
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 |
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