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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power supports remaining-stock sourcing or a documented PF3A migration after the installed PF2A703H-10-29 duty is captured.

PF2A703H-10-29

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SMC PF2A703H-10-29 supports legacy high-flow compressed-air monitoring where operators need a local indication plus control and trend signals.
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Technical specifications for PF2A703H-10-29

  • Manufacturer:
    SMC
  • Part Number:
    PF2A703H-10-29
  • Product Family:
    SMC
  • Product Type:
    PF2A High-Flow Digital Flow Switch for Air
  • Stock:
    1
  • Fluid:
    Dry air or nitrogen
  • Measured Flow Range:
    150-3000 L/min
  • Port:
    Rc1
  • Switch Output:
    NPN open collector, one output
  • Analog Output:
    4-20 mA
  • Supply:
    24 VDC +/-10%
  • Enclosure:
    IP65
  • Lead Wire:
    3 m with M12 connector
  • Mass Basis:
    Lead wire excluded
  • Weight:
    1.1 kg
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    Japan
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Flow Selection Output Fit Installation Applications

Features:

  • High-flow visibility: Local indication and controller signals place consumption changes in the same maintenance context.
  • Dual signal path: A discrete decision and current trend can support alarm logic and longer-term air-use analysis.
  • Migration boundary: The successor family requires a fresh order-code selection rather than a family-name substitution.
PF2A703H-10-29 is the Rc1, NPN and 4-20 mA configuration of the discontinued PF2A high-flow air switch.

The installed controller may use the switch output, analog current, or both, so every conductor function must be recorded.

PF3A7-H selection should start from process range and interfaces, then confirm piping and mounting fit.

Apter Power can help confirm the SMC PF2A703H-10-29 PF2A High-Flow Digital Flow Switch for Air and coordinate legacy or migration requirements.
SMC PF2A703H-10-29 PF2A High-Flow Digital Flow Switch for Air Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Process medium: Confirm the service is within the documented air or nitrogen boundary before reuse.
  • Operating range: Select a migration model from real minimum and maximum flow, not pipe size alone.
  • Pressure isolation: Treat the flow body as pressurized equipment during removal and commissioning.
  • Direction control: Match the marked flow direction so the displayed and transmitted values remain meaningful.
  • Switch polarity: The controller input must retain NPN compatibility when the sensor family changes.
  • Current signal: Verify the receiving channel and scaling for the 4-20 mA output before reconnecting.
  • Signal ownership: Record whether alarms use the discrete output, analog value or both.
  • Connector mapping: Compare M12 pin assignments rather than reusing a cable from appearance alone.
  • Pipe support: Prevent external piping loads from being transferred into the flow body.
  • Contamination control: Keep sealing debris and oil away from the internal flow passage during installation.
  • Leak test: Prove the new threaded joint before restoring control decisions based on flow.
  • Commissioning check: Compare local indication with the PLC value across more than one operating point.
  • Main air monitoring: Tracks high-flow compressed-air demand on equipment or branch headers.
  • Consumption alarms: Uses the switch decision to flag abnormal demand or loss of supply.
  • Trend integration: Sends an analog current signal to a controller or recorder for energy analysis.
  • Brownfield migration: Supports a documented transition from PF2A hardware after the complete successor configuration is approved.
Description
On a compressed-air header, PF2A703H-10-29 lets an operator see the flow locally while the machine receives both a switching decision and an analog trend. It is therefore used for consumption checks, low-flow alarms or process confirmation rather than as a stand-alone display.

Troubleshooting PF2A703H-10-29 should follow the signal actually used by the machine. A believable front-panel value does not confirm the discrete trip, analog loop, controller scaling or connector wiring, so each path needs an independent check.

Because this PF2A configuration was remodeled out of the range, migration begins with the installed duty rather than the newer family name. Preserve the real flow window and rebuild the port, electrical output, connector and mounting selection before replacing PF2A703H-10-29.
Alternative Names
PF2A703H1029 PF3A7-H
Technical notes
Use PF2A703H-10-29 only with the documented non-combustible gas service and install it in the required flow direction. Isolate pressure and electrical power before work. When migrating to PF3A7-H, compare measurable range, port, switch polarity, analog signal, connector and mounting envelope; the newer family designation is not a complete substitute code.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
PF2A703H-10-29 must be replaced during an outage. Can a PF3A7-H family unit be ordered without further selection?
No. Select the complete newer code from flow range, port, output, connector, mounting and control-system requirements.
The PF2A703H-10-29 display looks normal but the PLC analog value is fixed. Which path should be checked?
Verify M12 wiring, loop continuity, receiving-channel scaling and whether the current-output conductor is actually used.
A PF2A703H-10-29 alarm changes after piping work. What mechanical causes should be eliminated first?
Check flow direction, leaks, sealing debris, pipe stress and whether the process is still within the intended operating range.
Can PF2A703H-10-29 monitor a combustible gas because its range matches the application?
No. The official instructions warn against combustible-fluid service; choose equipment approved for the actual medium and hazard.
The control strategy uses both outputs from PF2A703H-10-29. What must migration testing include?
Prove the discrete trip point and the analog trend separately, then confirm they agree with local indication under real flow.
A stored PF2A703H-10-29 will be installed during a short outage. What should be proved on the bench first?
Power it with the intended connector, simulate flow conditions where practical, and prove the display, NPN output and 4–20 mA path separately before the outage begins.

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