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Fox Thermal Instruments FT3 User Manual

Thermal mass flow meter & temperature transmitter
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Fox Thermal Instruments, Inc.
THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER
Model FT3
www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933
104488
Rev. C

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Summary of Contents for Fox Thermal Instruments FT3

  • Page 1 Fox Thermal Instruments, Inc. THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER Model FT3 www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933 104488 Rev. C...
  • 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, merchantability, fitness, or any other matter with respect to the products;...
  • Page 3 Troubleshooting Page 67 7. Appendices Page 74 a. Specifications Page 74 b. Agency Approvals Page 77 c. FT3 with 2 Gas Curves Page 78 d. Dimensions Page 82 e. Installation Variations Page 90 f. Warranty Page 92 g. Returning your meter Page 94 8.
  • Page 4 Introduction Scope Welcome 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 Flow Calibration The Fox Calibration Lab maintains instrument calibration records on every flow meter. This data can also be accessed via a computer using FT3 View™ software within the instrument. Computer-generated calibration documents describe specific instrument details that can be sorted by serial number, tag number or customer purchase order.
  • Page 6 The configuration panel’s IR (infrared) buttons allow programming without removing the cover. The FT3 display is a 2 line x 16 character display with 4 mechanical and 4 IR buttons. The IR and mechanical buttons perform the same function but the IR buttons can be used without opening the cover.
  • Page 7 Introduction FT3 Functional FT3 Functional Diagram The Fox Model FT3 provides two isolated 4 to 20mA outputs: one for flow Diagram rate and a second programmable for flow rate or temperature. An optional on-board 2 line x 16 character backlit LCD display is available to view flow rate, total flow, elapsed time, process gas temperature and alarms.
  • Page 8 Model FT3 Installation: General Installation - Model Scope This section describes how to install the Fox Model FT3 Flow Meter and how FT3 Flow Meter to get started. Installation methods will vary according to the flow meter type (insertion or inline).
  • Page 9 Insertion Flow Meter Instructions for Insertion Flow Meter Lateral Placement Install the Model FT3 Insertion style flow meter so that it is far enough away Lateral Placement from bends in the pipe, obstructions, or changes in line sizes to ensure a consistent flow profile.
  • Page 10 Model FT3 Installation: Insertion Type Installation Depth Installation Depth The installation depth of the sensor in the pipe is dependent on the pipe size. To get the most accurate reading, proper placement of the sensor window within the pipe is necessary. As shown in Fig 2.2, the end of the sensor window should be 0.87"...
  • Page 11 Model FT3 Installation: Insertion Type Sensor Orientation - Fig. 2.3: Orientation of Insertion Type Flow Meter Direction of Flow Flow Direction Arrow Pipe FLOW Note: Some flow meters are shipped with the sensor elements that are offset (see figure 2.4). Others are shipped with sensors that have equal length elements (see figure 2.5).
  • Page 12 FLOW Insertion Mounting Instructions - Compression Fittings Mounting - The Model FT3 is mounted through a ¾" hole and a ¾" female NPT half Insertion Type coupling provided in the customer's pipe. Insertion style flow meters are not designed for use in pipes smaller than 1½".
  • Page 13 Installation: Inline Type Flow Meter Instructions for Inline Flow Meter Placement Install the Model FT3 Inline style flow meter so that it is far enough away Placement - from bends in the pipe, obstructions, or changes in line sizes to ensure a Inline Type consistent flow profile.
  • Page 14 (see figure 2.6 on p. 12). Note: • Refer to the Fox FT3 Calibration Validation User's Guide for information on setting the field baseline for Zero CAL-CHECK™ tests if you plan to perform these tests in the pipe.
  • Page 15 Wiring: General Scope Wiring Instructions The FT3 enclosure has two separate conduit entries. The installation must maintain separation between input power and output signal wiring. Wiring is accomplished by removing the wiring compartment cover. Bring customer-supplied wires into the enclosure through the conduit access on the sides of the enclosure. Cut wires for a minimum service loop.
  • Page 16 Model FT3 Wiring: Local Sensor Local Wiring Local Wiring Local Wiring will be the same for both insertion and inline type FT3 flow meters. Fig. 3.1: Local Wiring Input Signal Power Wiring 2x 3/4 inch NPT Female Signal Wiring includes: 4 to 20mA, pulse, alarm output, contact input, remote sensor, USB, and communications options.
  • Page 17 Model FT3 Wiring: Remote Sensor Option Remote Wiring Remote Wiring Remote wiring will be the same for both insertion and inline type FT3 flow meters. Fig. 3.2: Remote Wiring Signal Wiring 2X 3/4 " NPT, Female Input Power Remote Cable, 5 Conductor, Shielded, 100ft (30.48m) Max.
  • Page 18 Model FT3 Wiring: Remote Sensor Note: Remote wiring is only required when the Remote Electronics option is provided. Five wire shielded cable required. The shielded cable should be run through a separate grounded steel conduit (no other cables or wires in the conduit).
  • Page 19 Model FT3 Wiring: Remote Sensor Input Wiring Fig. 3.3: Remote Sensor Wiring Remote Sensor Shield Cable Shield RED* BLK* BRN* WHT* GRN* 24V,0.75A Black Dot Denotes Pin #1 Sensor Wires Electronics Enclosure Probe Sensor Wired By Fox SENSOR Remote Enclosure *Wire colors listed here represent the wire colors of cables supplied by Fox.
  • Page 20 Model FT3 Wiring: Input Power Power Input Wiring Power Input Requirements: 24VDC Supply External DC power supply must provide 24VDC ± 10%, at 750mA minimum. The enclosure must be properly grounded with a quality earth ground. Sixteen (16) gauge, stranded wire, is recommended for power and earth ground.
  • Page 21 Model FT3 Model FT3 Wiring: Input Power Power Input Wiring Power Input Requirements: 85 to 264VAC supply If the optional AC power supply is provided, the input power can be 85 to 264VAC. The enclosure must be properly grounded with a quality earth ground. Sixteen (16) gauge, stranded wire, is recommended.
  • Page 22 Model FT3 Wiring: Signal Wiring 4 to 20mA Output Wiring: Customer-Supplied Power Source 4 to 20mA Loop Bring the 4 to 20mA wiring in through the right-hand conduit hub. Connect Power Provided FLOW RATE 4 to 20mA wiring to TS2, 1(+) & 2(-). Connect 4 to 20mA by Customer output #2 wiring to TS2, 3(+) &...
  • Page 23 4 to 20mA wiring to terminal blocks TS2 and TS4 as shown in the Provided by FT3 diagram below. Fig. 3.7: 4 to 20mA Output Wiring for Loop Power Provided by FT3 Customer PLC or DCS Red 1 Red2...
  • Page 24 Frequency or Alarm Output /ALM +1 -2 24VDC Return 24V, 0.75A Note: Fig. 3.9: Frequency/Alarm Output Local +24V Power Option The FT3 Frequency/ Alarm output is typically used Customer PLC or DCS to drive digital circuitry or solid- Red 1 state relays.
  • Page 25 FLOW 4-20 PULSE EXTERNAL /ALM SWITCH 24V, 0.75A If you have purchased RS485 Modbus or HART communications options, please refer to one of the following appropriate Fox Instructions Manuals: • Fox FT3 RS485 Modbus Manual • Fox FT3 HART Manual...
  • Page 26 Optional Display FT3 Optional Display Panel & Configuration Panel The FT3 display is a 2 line x 16 character display with 4 mechanical and 4 IR (infrared) buttons. The IR and mechanical buttons perform the same function but the IR buttons can be used without opening the cover. The IR buttons can be disabled when the meter is used in snow or ice in order to avoid false key detection.
  • Page 27 Display #1. Pressing the F3 and F4 keys at the same time brings up the Reset Total screen (see p. 47) prompt. Fig. 4.2: FT3 Display Screen Navigation F1 key: Moves up one screen F2 key: Moves down one screen 1456.5 SCFM...
  • Page 28 Pressing the F1 & F2 keys at the same time in the normal mode, brings up Display the engineering displays. These displays show internal parameters of the FT3 which are used by Fox service technicians. Press F4 to exit. Use the F1 & F2 keys to navigate. Fig. 4.3: FT3 Engineering Displays Enter: Press F1 &...
  • Page 29 Model FT3 Operation: Programming Programming Using Data Entry using the local display module There are 2 basic types of menu entries: one for changing value or string and the Local Display one for selecting from a selection list. To Change a Value or String : Value or String VALUE = 0.91234...
  • Page 30 Model FT3 Operation: Programming Programming Using SET PARAMETERS ? the Local Display Press YES (F4) and the following screen will prompt the user to enter the password if it is active: PASWD:_ Enter the correct password, then follow the instructions for changing a value as specified above.
  • Page 31 Model FT3 Operation: Programming Programming Using 4-20 the Local Display EXIT Select CH1 (F1) to program channel 1. 20 mA = 3751 SCFM Enter the value for the 20mA and press OK (F4) key to accept the setting. Then the following screen will display: 4 mA = 0 SCFM Enter the value for the 4mA and press OK (F4).
  • Page 32 Model FT3 Operation: Programming Programming Using Select CH2 (F2) to program channel 2. Channel 2 is programmable for flow (CH2=Flow)or temperature the Local Display (CH2=Temp). CH2= Temp Press NXT (F1) to select Flow or Temperature and then press OK (F4).
  • Page 33 Model FT3 Operation: Programming Programming Using Press OUT (F2) to select output and the following screen may show: the Local Display OUT = Frequency Press NEXT (F1) to cycle through output options until you have the selection for "OUT=Frequency" and press OK (F4).
  • Page 34 MaxFlo=4999.8 SCFM Note: When the flow rate exceeds the maximum frequency set point, the output will stay at that maximum frequency but the FT3 will issue an alarm code. Caution: Equation to ensure pulse rate must not exceed 100 Hz.
  • Page 35 Model FT3 Operation: Programming Programming Using OUT = HiFloAlm the Local Display Then press NXT (F1) to select the correct alarm and press OK (F4). Selections are: HiFloAlm = High Flow Alarm LoFloAlm = Low Flow Alarm HiTempAlm = High Temperature Alarm...
  • Page 36 Model FT3 Operation: Programming Programming Using Serial Communication Settings To program the Serial communication settings, press I/O (F1) key from the the Local Display base menu. Serial Communication SET I/O EXIT Press COM (F1) to select Serial communication: Comm=Modbus Options for serial communication are:...
  • Page 37 Model FT3 Operation: Programming Programming Using Parity (for Modbus selection only): the Local Display Parity=NONE Parity Press NXT (F1) to select the parity and press OK (F4) Selections are: NONE EVEN Address Address: For Modbus selection only Address = 01 Press CHG (F1) to change the Modbus address and then press OK (F4).
  • Page 38 Model FT3 Operation: Programming Programming Using are programmable to show the information that you prefer and is discussed in this section. the Local Display Display #1 Display #2 DSP1L1 DSP2L1 DSP1L2 DSP2L2 Selections are: DSP1L1 Display 1, Line 1 DSP1L2...
  • Page 39 Model FT3 Operation: Programming Programming Using When the selection is correct, press OK (F4) to accept. The display will then go through the same process for all 4 lines of the 2 programmable displays the Local Display (DSP1L1, DSP1L2, DSP2L1 and DSP2L2).
  • Page 40 Model FT3 Operation: Programming Programming Using To Program the Password: the Local Display Press PSW (F2) key to select password. Programming Password PASSWD = 1234 This screen displays the current Level 1 password. Press CHG (F1) key to change the password and enter new value (see p.
  • Page 41 The FT3 re-calculates area, 4 and 20mA values, maximum flow for the frequency output and zero flow cutoff when changing flow units except for velocity units. When going to or from velocity units, the FT3 will not recalculate these values and these values must be re-entered manually.
  • Page 42 Model FT3 Operation: Programming Programming Using After pressing OK (F4) to accept the Flow unit the display will prompt for the temperature unit setting: the Local Display TMP UNT= Deg F Press NXT (F1) to change selection and OK (F4) to accept.
  • Page 43 Model FT3 Operation: Programming Programming Using Press CHG (F1) to change it and OK (F4) to accept. After the pressure reference is accepted, the display will prompt for the gas the Local Display density if LBS or KG was selected for flow unit: DNS = 0.988876 KG/m3...
  • Page 44 Model FT3 Operation: Programming Then press PRM (F3): Programming Using the Local Display CUTOFF = 2.0 SCFM Flow Cutoff Enter the value for the percent low flow cutoff and then press OK (F4). When the flow rate falls below the zero flow cutoff, the flow meter will display a flow value of zero.
  • Page 45 Model FT3 Operation: Programming Programming Using Filter Response (Sec.) 65% of Target the Local Display 0.09 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.60 1.00 0.05 2.00 0.03 3.00 0.01 10.3 High Flow Rate Alarm HiFloAlm = 1234 SCFM This is the upper flow limit alarm value that can be associated with a discrete output.
  • Page 46 Model FT3 Operation: Programming Programming Using discrete output. An alarm code is generated when the temperature value exceeds this limit. If no checking is needed, this value should be set to zero. the Local Display Press OK (F4) to accept the value.
  • Page 47 RESET TOTAL ? Press YES (F4) to reset total and NO (F1) to cancel. Note: This feature is not available on non-resettable units. Totalizer Rollover Totalizer Rollover: The FT3 has an automatic roll-over function. The unit will begin roll-over as follows:...
  • Page 48 Model FT3 Operation: Programming Programming Using Most flow units: 99,999,999,999 MSCFD: 999,999,999 the Local Display MMSCFM: 9,999,999 MMSCFD: 999,999 Restore Database Restore Database Restoring the original factory settings is accomplished from the “Flow Parameter 2” menu by entering a Level 2 password “9111” and pressing the SPC key (F2).
  • Page 49 Model FT3 Operation: Programming Programming Using Press YES (F1) ONLY if you want to reset the CRC and generate a new CRC value. the Local Display Reset CRC Simulation This menu allows for the simulation of flow rate, temperature and flow input voltage.
  • Page 50 Note: Simulation Mode will be cleared if the power is cycled. Note: • Refer to the Fox FT3 Calibration Validation User's Guide for information on setting the field baseline for Zero CAL-CHECK™ tests if you plan to perform these tests in the pipe.
  • Page 51 Model FT3 Operation: Programming Programming Using CAL-V™ - Calibration Validation Test 1 This menu allows the user to confirm the calibration of the FT3 by verifying the Local Display the functionality of the sensor and sensor signal processing circuitry. During CAL-V™...
  • Page 52 CALV ZRO EXIT Press CALV (F1) to perform the CAL-V™ verification test. Note: The FT3 will stop measuring flow when performing this test. Press EXIT (F4) to exit if you do not wish to continue. Flo: Go to Zero To select what the flow output will do during a CAL-V, choose from these options: Go To Zero: Flow output will be zero during the test (i.e.
  • Page 53 Model FT3 Operation: Programming Programming Using Upon test completion, the final CAL-V™ value will be displayed along with a Pass/Fail message. the Local Display CAL-V = 0.51 Passed Zero CAL-CHECK™ - Calibration Validation Test 2 Zero CAL-CHECK™ The Zero CAL-CHECK™ test is a companion test to CAL-V™. Unlike CAL-V™, which may be performed in the pipe and at process conditions, Zero CAL- CHECK™...
  • Page 54 Model FT3 Operation: Programming Programming Using protected by the PVC sensor cover originally shipped with the meter from the factory. the Local Display ZERO CHK MENU EXIT Press PIP (F1) to choose to perform the test in the pipe. Press BTL (F2) to choose to perform the test out of the pipe.
  • Page 55 Model FT3 Model FT3 Operation: Programming Programming Using WARNING: If you are doing a "Pipe" test, you must verify that there is a no flow condition before proceeding. If you are performing the test in a bottle, be sure the Local Display to isolate the sensor in a bottle - any air movement (even from a fan) can result in a false "fail"...
  • Page 56 Model FT3 Operation Operation: Programming Section 1 Programming Using Enabling/Disabling USB Serial Communication Checksum the Local Display The USB serial communication checksum may be enabled or disabled using Enable/Disable USB the display keypad. Disabling the communication checksum is sometimes Checksum useful in order to use a simple serial communication program such as HyperTerminal to communicate with the meter.

  • Page 57: Main Menu

    Model FT3 Operation Operation: Menu Tree Section 1 Main Menu Fig. 4.4: FT3 Menu Tree - Main Menu Enter menu by scolling to display 4 and entering the password SET PARAMETERS I/O FLO DSP EXIT Display Menu, p. 61 Flow Parameters 1 Menu, p. 59...

  • Page 58: Digital Output

    Model FT3 Operation: Menu Tree Digital Output Fig. 4.5: FT3 Menu Tree - Digital Output Not used OUT= Not used Frequency HiFloAlm LoFloAlm HiTempAlm LoTempAlm Select 1 of 3 methods to scale the frequency output FREQUENCY OUTPUT FEQ EXIT PLS/UNT=2 UNT/PLS=0.5...
  • Page 59 Model FT3 Operation: Menu Tree Parameter Menu 1 Fig. 4.6: FT3 Menu Tree - Parameter Menu 1 FLOW PARAMETER 1 Flow Parameter 2 Menu, p. 60 DGN UNT PRM EXIT SCFM DIAGNOSTIC FLO UNT=SCFM SCFH SIM TST EXIT NM3/H NM3/M...
  • Page 60 Model FT3 Model FT3 Operation: Menu Tree Parameter Menu 2 Fig. 4.7: FT3 Menu Tree - Parameter Menu 2 FLOW PARAMETER 2 CAL SPC PRM EXIT Level 2 Level 1 Calibration Table Parameters Flow cutoff in selected unit CAL TABLE K fact = 0% Cutoff=12.5 SCFM...

  • Page 61: Display Menu

    Model FT3 Model FT3 Operation: Menu Tree Fig. 4.8: FT3 Menu Tree - Display Menu Display Menu DISPLAY/PASSWORD PSW EXIT Display 1 Line 1 FLo rate Enabled DSP1L1=FLo rate IR KEY=Enabled PASSWD=1234 Total Disabled Elps Display 1 Temp Line 2...
  • Page 62 Model FT3 Operation: Menu Tree Operation Section 1 Diagnostic Tests Fig. 4.9: FT3 Menu Tree - Diagnostic Tests Menu Menu DIAGNOSTIC CALV ZRO EXIT ZERO CHK MENU Display alternates EXIT between the 2 PIP BTL EXIT screens until the test is completed...
  • Page 63 Model FT3 Operation: Menu Tree Operation Section 1 Engineering Display Fig. 4.10: FT3 Menu Tree - Engineering Display Enter: Press F1 & F2 at the same time Press F4 to return to normal mode 3124.6 SCFM Flow in selected unit Display 10 csv=0.3432 Volt...
  • Page 64 "Returning your Meter" on p. 94. Flow Calibration and Calibration Validation To ensure continued high accuracy of your Model FT3 Flow Meter, Fox Thermal Instruments Inc. provides a full NIST traceable calibration. It is recommended that the meter be returned to Fox for a calibration check in our NIST traceable labs after three years of operation.
  • Page 65 Model FT3 Maintenance: General Precautions Fuse Replacement Warning! Turn input power OFF before removing or installing a fuse. Use only recommended fuse replacements. Verify the fuse is defective by measuring it with an Ohm Meter (Two replacement fuses are provided with each unit).
  • Page 66 Fox are calibrated as a single precision mass flow meter. Interchanging sensors or sensor wiring will impair the accuracy of the flow meter. If you experience any problem with your Model FT3 Flow meter, call Fox Customer Service Department, Technical Assistance at (831) 384-4300.
  • Page 67 Model FT3 Model FT3 Troubleshooting Troubleshooting: General Section 1 Problem Possible Cause Action Unit will not power-up a)No power input •Check fuse (F1) located b)Bad fuse next to TS1 on main board. c)Bad Power supply •Check for correct power supply voltage at TS1 on main board.
  • Page 68 Model FT3 Model FT3 Model FT3 Troubleshooting: General Problem Possible Cause Action Velocity measurement is erratic 1.Very turbulent flow 1.Increase dampening (see or fluctuating filter settings in "Flow Param- eters" on p. 43) 2.Sensor dirty 2.Clean sensor (Refer to Maintenance section, p.
  • Page 69 FT3 Thermal Mass Flow Meter. 1. Improper wiring connections for power and/or 4 to 20mA output signal. The FT3 requires a separate power source for the main board and the two 4 to 20mA output signals. Two wires supply 24VDC power to the main board.
  • Page 70 Model FT3 Troubleshooting: Installation Problems Installation programmed into the flow meter through the front panel (see Flow Parameters, p. 43). This area is programmed in square feet or Problems square meters. The Calibration Certificate delivered with the flow meter contains the area that was programmed into the flow meter at the Fox factory.
  • Page 71 Model FT3 Troubleshooting: Installation Problems Installation 7. Mismatched serial numbers Problems If you have more than one meter, you must ensure that the serial numbers of meter, remote, and/or flow body match one another. These items have been manufactured and calibrated to operate as a unit and cannot be...
  • Page 72 Model FT3 Troubleshooting: Alarm Codes Alarm Codes Alarm Codes Information to diagnose and clear alarm codes is on p. 60 under the Menu Tree section. Enter password (9111) and follow the block diagram to get to the section affected by the error code.
  • Page 73 4 to 20mA. Channel #2 can be set for flow or temperature. Busy Meter is recalculating new parameters. Sensor Bridge The FT3 probe is getting too hot. Open sensor Shutdown circuit and check sensor wiring. Database CRC Error Refer to the PARAMETER MENU 2 section on p.
  • Page 74 Model FT3 Appendices: Specifications Performance & Performance Specs Flow Accuracy: Operating Specs Inline Meter: ± 1% of reading ± 0.2 % of full scale. 8 diameters of straight, unobstructed pipe upstream and 4 downstream required. Insertion Meter: ± 1% of reading ± 0.4 % of full scale. 15 diameters of straight, unobstructed pipe upstream and 10 downstream required.
  • Page 75 Model FT3 Appendices: Specifications Operating Specs Full Scale Flow Ranges for In-Line Flow meters: NM 3 /hr Size SCFM 0.25" 0-20 0-32 0.5" 0-90 0-140 0.75" 0-180 0-280 1" 0-320 0-500 1.25" 0-580 0-910 1.5" 0-840 0-1,320 2" 0-1,400 0-2,200 2.5"...
  • Page 76 2 gas curve option is ordered. USB communication port is standard. The free PC-based software tool - FT3 View™ - provides complete configuration, remote process monitoring, and data logging functions. Optional serial communication: HART and RS485 Modbus.
  • Page 77 Model FT3 Appendices: Agency Approvals Appendices Section 1 Agency Approvals Agency Approvals CE: Approved EMC Directive; 2004/108/EC Emissions and Immunity Testing: EN61326-1:2008 FM and FMc: Approved Class I, Div. 1, Gps B, C, D; Class II, Div. 1, Gps E, F, G; Class III, Div. 1;...
  • Page 78 : FT3 with 2 Gas Curves Section 1 Scope Scope This section describes added features to the standard FT3 flow meter when using the 2 gas curves firmware option. FT3 2 Gas Curves FT3 2 Gas Curves The 2 Gas Curves firmware allows the use of two different calibration tables when running with different gases.
  • Page 79 Model FT3 : FT3 with 2 Gas Curves Appendices Section 1 FT3 2 Gas Curves 3) Programming Contact Input for Curve Switching: Enter the menu using steps outlined in "Discrete Input Settings" section (p. 35) and select "Switch CRV". Please note that the flow meter needs to be programmed for 2 gas curves at the Fox factory before you can select this function.
  • Page 80 Model FT3 Appendices : FT3 with 2 Gas Curves Section 1 FT3 2 Gas Curves 4) Programming Densities for Curve 1 and Curve 2: When the selected flow unit is mass/time, two different densities will be used for each curve if the meter has been programmed for 2 gas curves. To change the densities: Go to the unit menu following "Unit Settings"...
  • Page 81 • In the event of a power failure, the software will remember the last curve in use. Upon powering up again, the FT3 unit will continue to use that curve.
  • Page 82 Model FT3 Appendices: Dimensions Appendices Section 1 Local with Fig. 7.1 Local Insertion Meter with Retractor Dimensions Retractor (20.6) (11.7) (9.9) (16.5) 2X 3/4” NPT, FEMALE 10.3±0.3 (26.2±0.8) “LL” 0.87 (2.2) Table 7.1 Local Insertion Meter with Retractor Probe Size Probe Size Dimension “LL”...
  • Page 83 Model FT3 Appendices: Dimensions Appendices Section 1 Remote with Fig. 7.2 Remote Insertion Meter with Retractor Dimensions Retractor CONDUIT, 3/4”, METAL ø3.6 (ø9.1) REMOTE CABLE, 5 CONDUCTOR, (11.2) SHIELDED, 100ft (30.48m) MAX (20.6) (5.1) (11.7) (9.9) (15.0) (13.2) 2X 3/4” NPT, FEMALE 10.3±0.3...
  • Page 84 Model FT3 Model FT3 Model FT3 Model FT3 Model FT3 Appendices: Dimensions Local Insertion Meter Fig. 7.3 Insertion Meter Dimensions (20.6) (11.7) (10.9) Input Signal Power Wiring 2x 3/4 inch NPT Female (13.2) “HH” “LL” FLOW Table 7.3 Insertion Meter with 316 stainless steel probe...
  • Page 85 Model FT3 Model FT3 Appendices: Dimensions Remote Fig 7.4: Insertion Remote Meter Dimensions Insertion Meter (9.1) (11.2) (5.1) (11.7) Input Power (11.4) 2x 3/4 inch Remote Cable, 5 Conductor, NPT Female (13.2) Shielded, 100ft (30.48m) Max. “HH” “LL” FLOW Table 7.4 Insertion Remote Meter with 316 stainless steel probe...
  • Page 86 Model FT3 Model FT3 Model FT3 Appendices: Dimensions Local Inline NPT Meter Fig. 7.5: Inline Meter with 316 Stainless Steel Flow Body and NPT End Connections Dimensions (20.6) (11.7) (10.9) Input Signal Power Wiring 2x 3/4 inch NPT Female (13.2) “H”...
  • Page 87 Model FT3 Appendices: Dimensions Remote Inline NPT Fig. 7.6: Inline Remote Meter with 316 Stainless Steel Flow Body and NPT End Connections Dimensions (9.1) (11.2) (5.1) (11.7) Input Power (5.1) Remote Cable, 5 Conductor, Shielded, 100FT Max. (13.2) “HH” 2x NPT Male Thread “L”...
  • Page 88 Model FT3 Appendices: Dimensions Local Inline Fig. 7.7: Inline Meter with 316 Stainless Steel Flow Body and 150# RF Flange End Connections Dimensions Flange Meter (20.6) (10.9) (11.7) 2x 3/4 inch NPT Female (13.2) “H” “L” 2X Flange, Raised Face, ANSI B16.5, 316 SST Table 7.7 Inline Meter with 316 stainless steel flow body and 150# RF Flange End Connections...
  • Page 89 Model FT3 Appendices: Dimensions Remote Inline Fig. 7.8: Inline Remote Meter with Stainless Steel Flow Body and 150# RF Flange End Connections Dimensions Flange Meter (9.1) (11.2) (5.1) (11.7) 2X 3/4 " NPT, (11.4) Female Remote Cable, 5 Conductor, (13.2) Shielded, 100FT Max.
  • Page 90 Model FT3 Appendices : Installation Variations (moisture) Section 1 Tilt Installations Tilt Installations These variations on installations help prevent moisture and condensation from forming on the sensor and disrupting accurate flow measurement. Fox recommends 180° installation, if possible. Tilt Installation at 90°, Tilt Installation at 90°,...
  • Page 91 Section 1 Tilt Installation at 45°, Tilt Installation at 45° When restricted physical installation space exists, the FT3 can also be installed at a 45° angle. Please note that the display's orientation will remain aligned with the top of the meter.
  • Page 92 Model FT3 Appendices: Warranty Warranty Warranty (a) FOX warrants that the products furnished under this Agreement will be free from defects in material and workmanship for a period of one year from the date of shipment. The customer shall provide notice of any defect to FOX, within one week after the Customer’s discovery of such defect.
  • Page 93 Model FT3 Appendices: Warranty (g) No warranty is made with respect to custom equipment or products Warranty produced to Buyer’s specifications except as specifically stated in writing by FOX and contained in the agreement. (h) THE FOREGOING WARRANTy CONSTITUTES THE SOLE LIABILITy OF FOX, AND THE CUSTOMER’S SOLE REMEDy WITH RESPECT TO THE...
  • Page 94 Appendices: Returning Your Meter Section 1 Returning Your Returning Your Meter The Fox Thermal Instruments, Inc. Customer Service Department Meter (PH: 831- 384-4300 or FAX: 831-337-5787) can help you through the process of returning a meter for service. If it becomes necessary to return a Fox flow meter for service or recalibration, please follow these steps: 1.
  • Page 95 Model FT3 Disclaimer Section 1 What to Expect What to expect while your meter is being serviced Depending on the type of service required when returning your Fox meter, During Servicing there are varying turnover times for servicing a meter. The average time needed to service the meter is 7-10 days (not including shipping or peak production times).
  • Page 96 Model FT3 Definitions Glossary of Terms Glossary of Terms and Definitions and Definitions Alternating Current American Wire Gauge Bara Bar absolute Contact Calibration Change Communication Current Sense Voltage Direct Current Down Display Elapsed time Frequency Ft^2 Square Feet Input/Output Input...
  • Page 97 Model FT3 Definitions Glossary of Terms NM3/H Normal cubic Meter per Hour NM3/M Normal cubic Meter per Minute and Definitions National Pipe Thread Personal hand held computer Unit Unit per Pulse Personal Computer Pulse per Unit PIP A^2 Pipe Area...
  • Page 98 Model FT3 Index Index Installation (cont'd) Lateral Placement - Inline, p. 13 Lateral Placement - Insertion, p. 9 Access to Electronics, p. 15 Mounting - Insertion, p. 9 Alarm Codes, p. 72 Mounting - Inline, p. 13 Alarm wiring, p. 24 Orientation of Meter - Inline, p.
  • Page 99 Model FT3 Index Programming (cont'd) Wiring (cont'd) High Alarm Limit value, p. 45 Input - Local, p. 16 Frequency Output, p. 32 Input - Remote, p. 17 Infrared (IR) buttons, p. 53 Instructions, p. 15 Low Alarm Limit value, p. 45 Local meters, p.
  • Page 100 Information Caution Wiring Definition of Terms Troubleshooting Tips...