Onicon FT-3500 User Manual (English)

Other manuals for Onicon FT-3500

Questions and Answers:

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watersjulieAug 14, 2025
How to troubleshoot no signal on Onicon Measuring Instruments?
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  Seth PriceAug 14, 2025
  If your Onicon Measuring Instruments show no signal, there are several things to check: * Ensure the meter is properly inserted into the pipe. * Confirm the remote sensor flow arrow points in the correct direction. * Verify the 24V supply voltage. * Check the wiring to the control system against the wiring diagram. * Make sure there is flow in the pipe. * Confirm the meter earth cable is connected to earth. * Low conductivity water (less than 20 µsiemens) may activate the empty pipe detector or increase electrical noise.
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Susan RogersAug 17, 2025
Why is the reading too high or low on my Onicon Measuring Instruments?
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  john35Aug 17, 2025
  If the reading on your Onicon Measuring Instruments is too high or too low, consider the following: * Check the pipe size. Contact Onicon if the pipe size differs from the calibration tag. * Verify the meter is correctly inserted into the pipe. * Ensure the remote sensor flow arrow points in the direction of flow. * Verify the wiring to the control system using the wiring diagram. * Confirm that the output signals (frequency vs. analog) are consistent. * Check that the control system is programmed for the correct flow range or scale factor. * Verify that the meter earth cable is properly connected; a poor connection can cause excessive noise.
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Benjamin FrankAug 20, 2025
What to do if analog signal is incorrect on Onicon Measuring Instruments?
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  omarrichardsonAug 20, 2025
  If the analog signal on your Onicon Measuring Instruments seems high or low and doesn't match the frequency output, try these steps: * Verify Analog Out Max and Flow at MaxFreq. * Check for a ground loop or offset voltage by disconnecting the analog signal input from the control system and measuring the analog output directly from the flow meter. Then, reconnect the signal input and measure the analog signals again. Any difference between these readings indicates a potential ground loop or offset voltage.
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Brandon GambleAug 25, 2025
Why is there no flow rate on the display of my Onicon FT-3500?
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  Daniel MillerAug 25, 2025
  If your control system displays a flow rate, but the local display module or Btu meter on your Onicon Measuring Instruments does not, verify that all wires from the flow meter are connected to the display module or Btu meter. The frequency output wires (green and yellow) must be connected for any Onicon display or Btu meter to function correctly.
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Dustin AndersonAug 31, 2025
What does 'Error Grand Totals Corrupt' mean on Onicon FT-3500 Measuring Instruments?
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  hansencindyAug 31, 2025
  If your Onicon Measuring Instruments display the error message “Error Grand Totals Corrupt”, it means valid totals could not be retrieved from the meter's non-volatile storage. To resolve this: * Restore Factory Configuration through Utility Menu-> Factory Restore. * Run flow or simulate flow to increase totals. * Power cycle the unit. If the error reappears, contact Onicon support, as an RMA may be needed, indicating the meter might have lost its memory.
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Vickie RobinsonSep 2, 2025
What causes “Error Yearly Totals Corrupt” on Onicon FT-3500 Measuring Instruments?
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  Kimberly WilcoxSep 3, 2025
  If your Onicon Measuring Instruments display the error message “Error Yearly Totals Corrupt”, it means valid totals could not be retrieved from the meter's non-volatile storage. To resolve this: * Restore Factory Configuration through Utility Menu-> Factory Restore. * Run flow or simulate flow to increase totals. * Power cycle the unit. If the error reappears, contact Onicon support, as an RMA may be needed, indicating the meter might have lost its memory.
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cindy56Sep 6, 2025
How to resolve 'Error Pipe Not Configured' on Onicon FT-3500 Measuring Instruments?
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  Sarah PerezSep 6, 2025
  If your Onicon Measuring Instruments display the error “Error Pipe Not Configured,” it indicates that the pipe configuration is either missing or incomplete. To fix this, configure the pipe through the Pipe Config Settings screen.

Onicon FT-3500 Specifications

General

Flow Meter Type	Insertion Turbine Flow Meter
Measurement Principle	Turbine
Probe Material	316 Stainless Steel
Insertion Length	Adjustable
Output Signal	4-20 mA, Pulse
Flow Range	25 ft/s
Enclosure Rating	NEMA 4X