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Fox Thermal Instruments FT3 User Manual

Thermal mass flow meter & temperature transmitter
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Fox Thermal Instruments, Inc.
SPECIAL FEATURE OF THE FOX MODEL FT3
THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER
Calibration Validation
User's Guide
www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933
105284
Rev. B

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Summary of Contents for Fox Thermal Instruments FT3

  • Page 1 Fox Thermal Instruments, Inc. SPECIAL FEATURE OF THE FOX MODEL FT3 THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER Calibration Validation User's Guide www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933 105284 Rev. B...
  • Page 2 Download Technical Data Sheets from our website: www.foxthermalinstruments.com Fox Thermal Instruments believes that the information provided herein is accurate however be advised that the information contained herein is NOT a guarantee for satisfactory results. Specifically, this information is neither a warranty nor guarantee, expressed or implied, regarding performance;...

  • Page 3: Table Of Contents

    Calibration Validation Table Of Contents 1. Introduction Page 4 a. Calibration Page 4 b. Calibration Validation Page 4 c. CAL-V™ Page 6 d. Zero CAL-CHECK™ Page 7 2. Start Up Page 8 a. CAL-V™ Page 8 b. Zero CAL-CHECK™ Page 8 c.

  • Page 4: Introduction

    Scope Introduction Introduction Thank you for purchasing the Model FT3 Thermal Gas Mass Flow meter and Temperature Transmitter from Fox Thermal Instruments. The Model FT3 is one of the most technically advanced flow meters in the world. Extensive engineering effort has been invested to deliver advanced features, accuracy measurement performance and outstanding reliability.
  • Page 5 Calibration Validation Introduction Calibration Fig. 1.1: Total Calibration Validation Validation CALIBRATION VALIDATION FOX MODEL FT3 GAS FLOW METER CAL-V™ Zero CAL-CHECK™ SENSOR TEST AT ZERO FLOW SENSOR TEST AT ZERO FLOW SENSOR AND ELECTRONICS TEST FIELD BASELINE FACTORY BASELINE INSITU...

  • Page 6: Cal-V

    4 minutes to complete. At the conclusion of the test, a Pass or Fail message will be displayed. Note: If the CAL-V™ test is performed using the Fox FT3 View™ Software, at the completion of the test, a CAL-V™ Certificate may be printed for a record of the test.

  • Page 7: Zero Cal-Check

    Alternatively, a Fox Packing Gland Assembly can be used to remove the sensor from the gas stream to create a “no flow” condition. Note: If the Zero CAL-CHECK™ test is performed using the Fox FT3 View™ Software, at the completion of the test, a Zero CAL-CHECK™ Certificate may be printed for a record of the test.

  • Page 8: Start Up

    Calibration Validation Start Up CAL-V™ Starting Up CAL-V™ CAL-V™ may be performed at any time after installation and at any flow rate, including zero flow. You do not need any extra equipment or paperwork to perform a CAL-V™ test. Refer to "Performing a CAL-V™ Calibration Validation Test"...

  • Page 9: Setting Field Baseline

    Setting Field Setting Field Baseline for In-Situ Zero CAL-CHECK™ tests After calibration of every FT3 meter, a lab technician sets the factory baseline Baseline for Zero CAL-CHECK™ tests. If you are planning on removing the meter from the process to perform the test, you do not have to set the baseline;...

  • Page 10: Packing Gland Assembly

    Field Baseline Set" on p. 13. Note: If you need information on the installation of the Fox Packing Gland Assembly, refer to Fox Document 102497. Fig. 2.2: FT3 and Parts of Fox Packing Gland Assembly FT3 Meter Exposed probe section...
  • Page 11 Calibration Validation Start Up Packing Gland Fig. 2.3: Close-Up: Fittings of Fox Packing Gland Assembly Assembly Small Nut Adjacent Hex Fittings Large Nut End Fitting In order to isolate the sensor, it must be retracted from the pipe. Loosen the small nut of the compression fitting using 7/8"...
  • Page 12 Calibration Validation Start Up Packing Gland With one hand supporting the meter, slide the probe up through the packing Gland Assembly until the internal stop makes contact. Close the Valve Assembly Shut-off handle by turning the lever 90˚clockwise to isolate the sensor within the chamber of the Packing Gland Assembly. Then slightly tighten the compression fitting to keep a seal in the chamber.

  • Page 13: Starting The Field Baseline Set

    Check to be sure the meter has returned to normal operation. Setting Field Starting the Field Baseline Set After the meter has been installed and wired correctly (see the Fox FT3 Baseline Instruction Manual that came with the meter), power on the meter.
  • Page 14 Calibration Validation Start Up Setting Field DIAGNOSTIC Baseline CALV EXIT Choose ZRO (F2) for Zero CAL-CHECK™. ZERO CHK MENU EXIT Choose PIP (F1) for in-situ Zero CAL-CHECK™. ZERO PIPE TEST EXIT To set the field baseline, choose SET (F2). SET ZRO Ref? Choose YES (F1) to set the field baseline.
  • Page 15 Calibration Validation Start Up Setting Field If there is no flow and the meter is stable, press YES (F4). The display will show: Baseline Setting ZRO ref ZR=x.xxxxx T=xx As the meter is setting the field baseline, the meter will display the reference value for the Zero baseline (ZR=xx.xxxx) and a countdown timer (T=xx) to approximate the time until the completion of the set.

  • Page 16: Operation

    CAL-V™ Performing the CAL-V™ Calibration Validation Test This menu allows the user to confirm the calibration of the FT3 by verifying the functionality of the sensor and sensor signal processing circuitry. During the CAL-V™ calibration validation test, the microprocessor adjusts current to the sensor elements and determines the resulting electrical characteristics.
  • Page 17 Calibration Validation Operation: CAL-V™ CAL-V™ To select what the flow output will do during CAL-V™, choose from these options: Go To Zero: Flow output will be zero during the test (ie 4mA) Hold Value: Flow will hold last value during the test Flo:Go to zero EXIT Select the option using NXT (F1) and then press OK (F4).
  • Page 18 Calibration Validation Model FT3 Operation: Zero CAL-CHECK™ CAL-V™ timer indicating how much time is left to finish the test. A “Please Wait” message will be flashing on and off on line 2 during this test. CAL-V = 0.51 Passed Upon test completion, the final CAL-V™ value will be displayed along with a Pass/Fail message.
  • Page 19 Calibration Validation Operation: Zero CAL-CHECK™ Zero CAL-CHECK™ DIAGNOSTIC CALV EXIT Press ZRO (F2) to choose the type of Zero CAL-CHECK™ test. If performing the test in the pipe, a "no flow" condition must be created. If performing out of the pipe, the meter must be removed and the sensor protected by a bottle. ZERO CHK MENU EXIT Zero CAL-CHECK™...

  • Page 20: In Pipe

    Calibration Validation Operation: Zero CAL-CHECK™ Zero CAL-CHECK™ - condition before proceeding. If you are performing the test in a bottle, be sure to isolate the sensor in a bottle - any air movement (even from a fan) In Pipe can result in a false "fail" result. Once process is stable, press YES (F4) key to begin the Zero CAL-CHECK™.
  • Page 21 Calibration Validation Operation: Zero CAL-CHECK™ Zero CAL-CHECK™ - FLOW PARAMETER 1 Out of Pipe EXIT Press DGN (F1). The display will show: DIAGNOSTIC EXIT Press TST (F2). The display will show: DIAGNOSTIC CALV EXIT Press ZRO (F2) to choose the type of Zero CAL-CHECK™ test. ZERO CHK MENU EXIT Press BTL (F2) to choose to perform the test out of the pipe.
  • Page 22 Calibration Validation Operation: Zero CAL-CHECK™ Zero CAL-CHECK™ - VERIFY ZRO? Out of Pipe Press YES (F1) key to verify the Zero CAL-CHECK™. Process Zero and Stable? WARNING: You must verify that there is a no flow condition before proceeding. Be sure to isolate the sensor completely - any air movement (even from a fan) can result in a false "Fail"...

  • Page 23: Troubleshooting

    Troubleshooting: Calibration Validation Troubleshooting Troubleshooting CAL-V™ If the FT3 Meter fails a CAL-V™ Calibration Validation test, the meter must be CAL-V™ returned to the factory for evaluation. See the "Returning Your Meter" section in the Appedix of the FT3 Instruction Manual or visit our website at http://www.

  • Page 24: Glossary Of Terms And Abbreviations

    Calibration Validation Definitions Glossary of Terms Calibration Diff Difference and Definitions Down Display Input / Output NIST National Institute of Standards and Technology Personal Computer Parameters Password Simulation...

  • Page 25: Index

    Calibration Validation Index Index Achieving Zero Flow In Pipe, p. 8 Out of Pipe, p. 8 Calibration, p. 4 Calibration Validation, p. 4 CAL-V™ Introduction, p. 6 Start Up, p. 8 Performing CAL-V™, p. 16 Baseline Factory Baseline, p. 9 Field Baseline, p.
  • Page 26 Information Caution Wiring Definition of Terms Troubleshooting Tips...

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