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FX Flow Switch
Brand: Ameritrol, Inc
The FX series flow switch is the most reliable flow switch available.
The thermal dispersion principle of operation features no moving parts and provides an extremely reliable and repeatable switch for the most demanding industrial applications.
The sensor head employs two temperature sensors with a constant very low power heating source physically attached to one of the temperature sensors.
The second temperature sensor is isolated from the heating source and provides compensation for changing process temperatures.
As flow changes so does the temperature differential. This allows the device to be used as a flow/no flow sensor, or to switch at any velocity shown in the flow switch range chart.
Our dual switch-point option allows two separately adjustable switch points to be set using the same instrument.
Features- Used in 1/2" Lines and Larger
- Explosion Proof and NEMA 4X Locations
- 316L Stainless Steel Sensor, Exotic Alloys Available
- Temperatures to 900° F
- Pressures to 10,000 psiG
- Extremely Low Flow Rate Detection
- Explosion Proof Enclosures
- Exotic Alloys for Corrosion Resistance
- Relay Energization is Field Programmable
- No Moving Parts
- 12 Vdc, 24 Vdc/Vac, 120 Vac, or 200-240 Vac Power Input
Specifications
Brand
Approvals & Certifications
- ATEX
- CENELEC
- CSA
- FM
- UL
BSP Connection
- 3/4” BSPT Male
Electrical Connectors
- 1” NPT Female
Enclosure, Body Material
- 316L Stainless Steel
Flange Material
- 316L Stainless Steel
- Carbon Steel
Flange Size - 1-1/2” (DN 40)
- 1-1/2” (DN 40) - 150#
- 1-1/2” (DN 40) - 1500#
- 1-1/2” (DN 40) - 2500#
- 1-1/2” (DN 40) - 300#
- 1-1/2” (DN 40) - 600#
- 1-1/2” (DN 40) - 900#
Flange Size - 1-1/4” (DN 32)
- 1-1/4” (DN 32) - 150#
- 1-1/4” (DN 32) - 1500#
- 1-1/4” (DN 32) - 2500#
- 1-1/4” (DN 32) - 300#
- 1-1/4” (DN 32) - 600#
- 1-1/4” (DN 32) - 900#
Flange Size - 1” (DN 25)
- 1” (DN 25) - 150#
- 1” (DN 25) - 1500#
- 1” (DN 25) - 2500#
- 1” (DN 25) - 300#
- 1” (DN 25) - 600#
- 1” (DN 25) - 900#
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150#
- 2” (DN 50) - 1500#
- 2” (DN 50) - 2500#
- 2” (DN 50) - 300#
- 2” (DN 50) - 600#
- 2” (DN 50) - 900#
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150#
- 3” (DN 80) - 1500#
- 3” (DN 80) - 2500#
- 3” (DN 80) - 300#
- 3” (DN 80) - 600#
- 3” (DN 80) - 900#
Flange Size - 4” (DN 100)
- 4” (DN 100) - 150#
- 4” (DN 100) - 1500#
- 4” (DN 100) - 2500#
- 4” (DN 100) - 300#
- 4” (DN 100) - 600#
- 4” (DN 100) - 900#
Flange Size - 6” (DN 150)
- 6” (DN 150) - 150#
- 6” (DN 150) - 1500#
- 6” (DN 150) - 2500#
- 6” (DN 150) - 300#
- 6” (DN 150) - 600#
- 6” (DN 150) - 900#
Flange Type
- Flat Face (FF)
- Raised Face (RF)
- Special
Input Power
- 12 Vdc
- 120 Vac
- 24 Vdc / Vac
- 240 Vac
Insertion 'U' Length
- 1.2” (3 cm)
- 1.8” (4.6 cm)
Mounting
- Remote Mounting
NPT Connection
- 1” NPT Male
- 1/2” NPT Male
- 1-1/2” NPT Male
- 1-1/4” NPT Male
- 2” NPT Male
- 3/4” NPT Male
Operating Pressure - Sensor
- Option to psig: 10,000 (bar: 689, MPa: 68.9)
- Vacuum to psig: 4,000 (bar: 275, MPa: 27.5)
Operating Temperature - Electronics
- -46° to 65° C (-50° to 150° F)
Operating Temperature - Sensor
- -46° to 177° C (-50° to 350° F)
- Extended Range: -129° to 482° C (-200° to 900° F)
- Extended Range: -196° to 260° C (-320° to 500° F)
Options
- Calibrator
- Circuit Boards
Principle of Operation
- Thermal, Calorimetric
Response Time
- From 3 seconds
Sensor, Probe Style
- Insertion
Switch Point Range
- Air & Gas: 0.01 FPS to 550 FPS
- Hydrocarbon: 0.01 FPS to 50 FPS
- Water-based Liquids: 0.01 FPS to 50 FPS
Switch Type
- DPDT 3 A or 10 A Resistive
- SPDT 3 A or 10 A Resistive
Wetted Materials
- 316L Stainless Steel
- Pump Protection: The FX series flow switch can reliably shut down pumps on low or no flow
- Bearing Lubrication: Detects loss of lubricant flow
- Seal Leakage: Switch verifies positive seal flow or detects excessive leakage indicating maintenance requirement
- Chemical Feed and Metering Pumps: Indicates low or no flow of chemical additives to process fluids down to .02 feet/sec
- Safety Shower and Eye Wash Station: The FX series switch detects high flows from a safety shower and the low flows of an eye wash station. It can be wired to sound an alarm, turn on an emergency light, and/or send a signal to the control room for emergency help.
- Analyzer/ Gas Chromatographs: Confirms continuous sample flow to instruments
- Control Rooms: A flow switch can be used for monitoring of plant equipment such as pumps, valves, and fans, providing a contact closure when the process condition changes.
- Purge Air: Detects or verifies flow to meet plant safety requirements
- Spray Nozzles: A flow switch can reliably detect nozzle blockage in coating applications
- Relief Valve/Rupture Disks: The FX switch can provide automated detection of flow or leakage of safety relief valves or rupture disks
- Chiller Lines: Automatic shut down of chillers on low or no flow
- Heater Burnout Prevention: The FX series flow switch can initiate heater shutdown on loss of flow to prevent overheating of elements
- Tank Car Loading: The FX senses dry line or phase change from liquid to nitrogen gas flow
- Drain Line Sensor: Capable of detecting low flow in partially filled lines
- Agitation Monitor: Provides positive indication of agitation in tanks, vessels, or ponds
- Flare Stack Monitor: The FX series no moving parts thermal dispersion flow switch is ideal for monitoring dirty gases in flare stack applications