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Fox Thermal Instruments FT1 User Manual

Thermal mass flow meter & temperature transmitter
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Fox Thermal Instruments, Inc.
THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER
Model FT1
www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933
106012
Rev. G

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Summary of Contents for Fox Thermal Instruments FT1

  • Page 1 Fox Thermal Instruments, Inc. THERMAL MASS FLOW METER & TEMPERATURE TRANSMITTER Model FT1 www.foxthermalinstruments.com | 399 Reservation Road Marina, CA. 93933 106012 Rev. G...
  • 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 Model FT1 Table Of Contents 1. Introduction Page 4 a. Menu Trees Page 4 b. Quick Start Guide Page 12 2. Installation (Mechanical) Page 16 a. Installation Depth Page 18 b. Orientation of Flowmeter Page 19 c. Rotating the Probe/Enclosure Page 19 d.

  • Page 4: Main Menu

    Model FT1 Introduction: Menu Trees Main Menu Fig. 1.1: FT1 Menu Tree - Main Menu Enter menu by scolling to display 4  (p. 38) and entering the password (p. 39) MAIN MENU I/O    FLO    DSP    EXIT Display Menu, p. 8 Flow Menu 1, p. 6 If RS485 hardware detected If HART hardware detected/with license If pulse/alarm hardware detected SET  I/O SET  I/O SET  I/O COM          420    EXIT            PUL    420    EXIT COM  PUL   420    EXIT...

  • Page 5: Digital Output

    Model FT1 Introduction: Menu Trees Digital Output Fig. 1.2: FT1 Menu Tree - Digital Output MAIN MENU I/O    FLO    DSP    EXIT Set I/O             PUL    420    EXIT (p. 40) Not used OUT= Pulse Pulse NXT                            OK HiFloAlm LoFloAlm HiTempAlm LoTempAlm Pulse Alarm output High Flow Alarm (p. 42) Select 1 of  3  methods to scale  the pulse output OUT= HiFloAlm NXT                            OK Pulse Output (p.
  • Page 6 Model FT1 Introduction: Menu Trees Flow Menu 1 Fig. 1.3: FT1 Menu Tree - Flow Menu 1 MAIN MENU I/O    FLO    DSP    EXIT FLOW MENU 1 DGN   UNT   FM2   EXIT Flow Menu 2 Menu, p. 7 DIAGNOSTIC FLO UNT=SCFM (p. 52) SCFM (p. 46) SCFH SIM   ZRO              EXIT NXT                              OK NM3/H NM3/M KG/H...
  • Page 7 Model FT1 Introduction: Menu Trees Flow Menu 2 Fig. 1.4: FT1 Menu Tree - Flow Menu 2 MAIN MENU I/O    FLO    DSP    EXIT FLOW MENU 1 DGN   UNT   FM2   EXIT FLOW MENU 2 GAS    SPC    PRM    EXIT Parameters (p. 48) Level 2 (p. 50) Flow cutoff  in selected units K fact = 0% Cutoff=12.5 SCFM CHG                             OK CHG                            OK ® Gas-SelectX Menu, p. 10 Pipe_id=4.026 In RESTORE DATABASE?

  • Page 8: Display Menu

    Model FT1 Introduction: Menu Trees Display Menu Fig. 1.5: FT1 Menu Tree - Display Menu MAIN MENU I/O    FLO    DSP    EXIT DISPLAY/PASSWORD DSP            PSW    EXIT Display 1  Line 1 (p. 43) (p. 45) FLo rate DSP1L1=FLo rate PASSWD=1234 Total NXT                             OK CHG                            OK Elps Display 1  Temp Line 2 Alarm FLo rate DSP1L2=Total Total NXT                             OK Elps Display 2 ...
  • Page 9 Model FT1 Introduction: Menu Trees Zero CAL-CHECK ® ® Fig. 1.6: FT1 Menu Tree - Zero CAL-CHECK Menu Menu MAIN MENU I/O    FLO    DSP    EXIT FLOW MENU 1 DGN   UNT   FM2   EXIT DIAGNOSTIC MENU SIM    ZR0           EXIT (p. 56)   ZERO CHK MENU VER                         EXIT     VERIFY ZERO? YES                          NO     Process Zero and Stable?       YES      EXIT          Verifying ZERO   0.512                T=123 Displays a number value  Displays the test’s  during test count down timer     ZERO=2.321     ZERO=0.259...
  • Page 10 Model FT1 Introduction: Menu Trees Gas-SelectX Menu Fig. 1.7: FT1 Menu Tree - Gas-SelectX ® Menu ® MAIN MENU I/O    FLO    DSP    EXIT FLOW MENU 1 DGN   UNT   FM2   EXIT FLOW MENU 2 GAS    SPC    PRM    EXIT (p. 58) Methane GAS=%Mix Select up to three gases for Gas Mix. Be sure  NXT                          OK mixture equals 100%. Nitrogen Natural Gas Argon Methane = 65 % Propane Helium UP      DN                  OK Oxygen Butane Hydrogen CO2 = 30 %...
  • Page 11 Model FT1 Introduction: Menu Trees Engineering Display Fig. 1.8: FT1 Menu Tree - Engineering Display Enter: Press F1 & F2 at the same time Press F4 to return to normal mode 3124.6 SCFM Flow rate measured by the meter Display 10 CSV = 0.3432 Volt Current Sense Voltage of sensor measurement circuit Pulse=1234.5 cnt Digital control counts of Pulse output Display 11 mA_420=234 cnt Digital control count of 4‐20mA output Elp=12.5 HR Elapsed time of meter operation Display 12 Stat(hex)=2800 Meter function and operation status code Alm=None Meter’s active alarms Display 13 FT1 V2.0 Firmware version of meter MB_Sn=P23949 Main board serial number Display 14 BB_Sn=P23945 Bridge board serial number...
  • Page 12 Check the remaining flow meter settings by accessing the meter settings either through the front panel of the display or by using the FT1 View™ software tool. Record the settings in the spaces given for items A - E on the following page.
  • Page 13 After powering on your meter, check items A - E below by accessing the meter settings either through the front panel of the meter's display or by using the FT1 View™ software tool. Which flow units have been set in meter? (SCFM, KG/H, etc..)
  • Page 14 Introduction Welcome Thank you for purchasing the Model FT1 Thermal Gas Mass Flow Meter from Fox Thermal Instruments. The Model FT1 is one of the most technically advanced flow meters in the world. Extensive engineering effort has been invested to deliver advanced features, accurate measurement performance and outstanding reliability.
  • Page 15 The maximum frequency is 100 Hz. FT1 View™ interfaces to the USB port and is a free PC-based software program that displays flow meter readings and permits flow meter configuration. The software is available for download on the Fox website.
  • Page 16 Model FT1 Installation: General Installation Scope This section describes how to install the Fox Model FT1 Flow Meter and how to get - Model FT1 started: Flow Meter 1. Determine lateral position on the pipe 2. Sensor installation depth 3. Sensor orientation in relation to sensor length and direction of flow 4.
  • Page 17 Insertion Flow Instructions for Insertion Flow Meter Lateral Placement Install the Model FT1 Insertion style flow meter so that it is far enough away from Meter Lateral bends in the pipe, obstructions, or changes in line sizes to ensure a consistent flow Placement profile.
  • Page 18 Rotating the Enclosure Enclosure The Model FT1 has been designed to allow the enclosure to rotate into four positions for optimal viewing of the display. To rotate the enclosure, first loosen the two set screws near the Flow Direction Indicator. Then unscrew and remove the Flow Direction Indicator to allow the enclosure to swivel into the desired position.
  • Page 19 Model FT1 Installation: Insertion Type Sensor Direction of Flow and Orientation of the Probe Sensor Install the meter with the flow direction indicator pointing in the direction of flow in the Orientation - pipe. To rotate the enclosure/probe, unscrew the Flow Direction Indicator and the Set Direction of Screws, rotate the housing ±90°...
  • Page 20 Model FT1 Installation: Insertion Type Changing Changing the Orientation of the FT1 Display The display can be rotated in 90° increments for optimal viewing of the screen. First, Display open the enclosure by unscrewing the enclosure cap and loosen the two captive Orientation phillips screws to open the display assembly.
  • Page 21 Mounting Probe Mounting Instructions - Compression Fittings The Model FT1 is mounted through a 7/8" hole and a 1" female NPT half coupling provided in the customer's pipe. Insertion style flow meters are not designed for use in pipes smaller than 1½".
  • Page 22 Model FT1 Installation: Retractor Option Installing a Installation of a New Retractor Assembly Retractor NOTE: For instructions on how to properly weld the NPT female fitting onto pipe, please refer to Document #107590. 1. Remove collar clamp from probe using a 3/16" Hex Key.
  • Page 23 Model FT1 Installation: Retractor Option 4. Insert probe into retractor assembly and pipe to verify that the probe will fit through without obstructions. Carefully slide the probe through the retractor assembly and through the hole to see if there is interference by touching the pipe wall on the far side or until the probe cannot go deeper.
  • Page 24 Model FT1 Installation: Retractor Option 6. Using the equation (L + D/2 + 0.73") from Figure 2.8, calculate the insertion depth and mark on the probe while measuring from the end of the probe. 7. Ensure there is enough clearance to remove the meter from the retractor. See the Retractor Clearance table in Fig 2.8 for the model code of your meter.
  • Page 25 Model FT1 Installation: Retractor Option 8. Insert probe back into valve assembly to the depth mark and hand-tighten the compression fitting. 9. Verify that flow direction indicator is in line with pipe and in the direction of flow. Flow Direction Indicator Swage Nut &...
  • Page 26 Scope Wiring Instructions To wire the FT1, unscrew and remove the enclosure cap. If the meter has the display option, loosen the two captive screws on the display assembly and rotate it open to access the wiring terminals. Connect the power and signal wires to the terminal blocks according to the label and instructions on the following pages.
  • Page 27 Model FT1 Wiring: General Power Wiring Power Wiring For wiring the 12 to 28VDC power, use stranded copper wire, no larger than 16-gauge. Twisted pair shielded cable is recommended. Supply connection wiring must be rated for at least 90°C. Grounding Grounding The enclosure must be properly grounded with a quality earth ground.
  • Page 28 6 Watts minimum. (With 12VDC power, the FT1 can use up to 500mA. With 24VDC power, the FT1 can use up to 250mA.) A 20 Watt or greater power supply is recommended to ensure it can provide enough current under all temperature, ventilation and power on conditions.
  • Page 29 Model FT1 Wiring: Signal Wiring 4 to 20mA Output Wiring: Customer-Supplied Power Source 4 to 20mA Loop Bring the 4 to 20mA wiring in through either conduit hub. Connect 4 to 20mA wiring Power Provided as shown in the diagram below.
  • Page 30 Bring the 4 to 20mA wiring in through either conduit hub. Connect the 4 to 20mA as Loop Power shown in the diagram below. Provided by FT1 Fig. 3.3: 4 to 20mA Output Wiring for Loop Power Provided by FT1 Customer PLC or DCS +12 to 28VDC 12 to 28VDC Return...

  • Page 31: Output Wiring

    The pulse/alarm output is an open collector circuit capable of sinking a maximum of 10mA of current. Pulse or alarm selection is programmed using the display or FT1 View™. Only one option, pulse or alarm, can be active at a time. Fig. 3.4: Pulse/Alarm Output Isolated (Recommended)
  • Page 32 The pulse/alarm output is an open collector circuit capable of sinking a maximum of 10mA of current. Pulse or alarm selection is programmed using the display or FT1 View™. Only one option, pulse or alarm, can be active at a time. Fig. 3.5: Pulse/Alarm Output Power Provided by FT1...
  • Page 33 Termination Resistor Connect a termination resistor across the receive/transmit signals of the last device on the communication line. To connect the 121 ohm termination resistor on the FT1, set jumper W1 to the Terminated position, see Fig. 3.6. Disconnect the termination resistor on all other external RS485 devices. The termination resistor of the FT1 is disconnected by setting jumper W1 to the Open position.
  • Page 34 Model FT1 Wiring: HART HART Wiring HART Wiring The HART connections are made as shown in the diagram below. NOTE: Meters ordered with HART will be configured for flow as default. If the customer changes the 4-20mA output to temperature, HART should report temperature.
  • Page 35 HART 4 to 20mA Output Wiring: Loop Power Provided by FT1 The 4 to 20mA current loop and HART modem connections are made as shown in the diagram below. Fig. 3.9: HART 4 to 20mA Output Wiring, Loop Power Provided by FT1 Customer PLC or DCS +12 to 28VDC...
  • Page 36 FT1 Display FT1 Display and Configuration Panel The FT1 has a 2 line x 16 character display with 4 mechanical buttons. The meter can be programmed by using the display and configuration panel. The configuration panel can be accessed by removing the FT1 cap. Be sure to replace the cap after you are done configuring the FT1.
  • Page 37 Pressing the F3 and F4 keys at the same time brings up the Reset Total screen (see p. Reset Total 52) prompt. Screen Fig. 4.2: FT1 Measurement Mode Display Screen Navigation F1 key: Moves up one screen F2 key: Moves down one screen 1456.5 SCFM...
  • Page 38 Model FT1 Operation: Programming Programming Data Entry using the Display and Configuration Panel There are 2 basic types of menu entries: one for changing value or string and one for by Display selecting from a selection list. Value or String To Change a Value or String : VALUE = 0.91234...
  • Page 39 Model FT1 Operation: Programming Programming Enter the correct password, then follow the instructions for changing a value as specified on page p. 38. The default Level 1 password is “1234”. by Display If the wrong password is entered, the message “Wrong Password” will display and then return to the programming entry screen.
  • Page 40 Pulse/alarm Pulse/alarm Output Output If the Pulse/alarm feature was purchased as the second output for the Model FT1, it can be accessed from the main menu, press I/O (F1) (screen appearance may vary). EXIT Press PUL (F2) to select the pulse output. The following screen will show:...
  • Page 41 Model FT1 Operation: Programming The pulse output can be configured in one of three ways: Programming 1. Specifying how many pulses per unit, P/U (i.e., 10 pulses per SCF) by Display 2. Specifying how many flow units total per pulse, U/P (i.e., 0.1 SCF per pulse) 3.
  • Page 42 100 Hz and the FT1 will issue an alarm code. Alarm Output Alarm Output If the Pulse/alarm feature was purchased as the second output for the Model FT1, press I/O (F1) key from the Main Menu screen. The screen will show:.
  • Page 43 Serial Communication Settings Communication If RS485 Communication feature was purchased as the second output for the Model FT1, the Serial communication settings can be programmed by pressing I/O (F1) key from the Main Menu. The screen will show: SET I/O EXIT Press COM (F1) to select Serial communication.
  • Page 44 Model FT1 Operation: Programming Programming Selections are: DSP1L1 Display 1, Line 1 by Display DSP1L2 Display 1, Line 2 DSP2L1 Display 2, Line 1 DSP2L2 Display 2, Line 2 Programming To Program Display Screens #1 & 2: Display Screens From the Main Menu press DSP (F3) to select the display menu: #1 &...
  • Page 45 Model FT1 Operation: Programming Programming Password There are two user level passwords, only Level 1 is programmable and gives access by Display to all the normal settings. The second password is used to allow access to calibration Password factors and should normally never be changed unless advised by the Fox service department, or to set a new password in the event that the user forgets the Level 1 password.
  • Page 46 KG/S SLPM MCFD (MSCFD) LBS/H NLPS SM3/M SM3/D WARNING! The FT1 re-calculates area, 4 and 20mA values, maximum flow for the pulse output and zero flow cutoff when changing flow units. The totalizer must be reset immediately after changing units.
  • Page 47 Model FT1 Operation: Programming Programming After pressing OK (F4) to accept the Flow unit the display will prompt for the temperature unit setting: by Display Temperature TMP UNT= Deg F Units Press NXT (F1) to change selection and OK (F4) to accept.
  • Page 48 Model FT1 Operation: Programming Programming After the reference pressure is accepted, the FT1 will recalculate and display gas density at user's reference temperature and pressure: by Display Density DNS = 1.2930 KG/m3 The gas density is for information only. Press OK (F4) to continue.
  • Page 49 Model FT1 Operation: Programming Programming To set the Pipe Diameter by Display Pipe_id = 3.068 In Pipe Diameter Enter the pipe diameter in inches or millimeters and then press OK (F4). Use millimeters for metric flow unit selections and inches for English flow unit selections.
  • Page 50 Model FT1 Operation: Programming Programming To set the parameters for a High Temperature Alarm: by Display HiTmpAlm = 200° F High Temp Alarm This is the upper temperature limit alarm value that can be associated with the alarm 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.
  • Page 51 WARNING! Once the non-resettable totalizer (NRT) has been activated on an FT1 flow meter, the change cannot be undone. The non-resettable totalizer is only recommended for applications that require it. After it has been enabled, your FT1’s totalizer and elapsed time counters will be non- resettable.
  • Page 52 Press YES (F4) to reset total and elapsed time. Press NO (F1) to cancel. NOTE: This feature is not available on non-resettable units. Totalizer Rollover Totalizer Rollover: The FT1 has an automatic roll-over function. The total flow count of the FT1 will roll over after the following values: Most flow units: 99,999,999,999...
  • Page 53 Model FT1 Operation: Programming Programming FLOW MENU 1 by Display FM2 EXIT Pressing DGN (F1) will show: DIAGNOSTIC EXIT Pressing SIM (F1) will show: Simulate Flow? Press YES (F1) to continue. FloSim = 0 SCFM Enter the value and then press OK (F4).
  • Page 54 Operation: Zero CAL-CHECK ® Calibration Calibration of the Fox Model FT1 Thermal Flow Meter To ensure that all Fox flow meters meet specified performance parameters and provide accurate, repeatable measurements in the field, all calibrations are performed with NIST-traceable flow standards. Each meter is shipped from the factory with a Fox Calibration Certificate.
  • Page 55 Model FT1 Operation: Zero CAL-CHECK ® ® Fig. 4.3: Normal Mode vs. Zero CAL-CHECK Mode Zero CAL- CHECK ® NORMAL MEASUREMENT MODE Zero CAL-CHECK™ MODE Calibration Validation Outputs PASS/FAIL MICROPROCESSOR MICROPROCESSOR BASELINE RATE MASS FLOW COMPARISON CALCULATION SIGNAL SIGNAL PROPORTIONAL...
  • Page 56 Model FT1 Operation: Zero CAL-CHECK ® ® Performing Performing the Zero CAL-CHECK Calibration Validation Test ® The Zero CAL-CHECK test must be performed at zero flow to ensure a valid test Zero CAL- result. This test is used to confirm that the flow meter still retains its original NIST-...
  • Page 57 Model FT1 Operation: Zero CAL-CHECK ® Performing Process Zero and Stable? EXIT Zero CAL- CHECK Test ® WARNING! You must ensure that there is a no flow condition before proceeding. If you are performing the test in a bottle, be sure to isolate the sensor in a closed container - any air movement (even from a fan) may result in a false "fail"...
  • Page 58 ® This menu allows the user to select a gas or gas mix from a pre-calibrated list of Gas-SelectX ® gases/gas mixtures available on the Fox Model FT1 Flowmeter. Gases and gas mixes Menu available in the Gas-SelectX feature include: ®...
  • Page 59 Model FT1 Operation: Gas-SelectX ® Accessing SET PARAMETERS? Gas-SelectX ® Menu Press YES (F4) and the following screen will prompt the user to enter the password if it is active: PASWD:_ Enter the correct password and press OK (F4) to enter it.
  • Page 60 Model FT1 Operation: Gas-SelectX ® Choosing a From this screen, the user will be able to access two aspects of the Gas-SelectX ® menu: 1. Pure Gas = Choosing from a list of available gases, or 2. Gas Mix = Programming a specific mixture of three gases...
  • Page 61 Model FT1 Operation: Gas-SelectX ® Choosing a Methane=30% To set the percentage of methane in the gas mix, press UP (F1) or DN (F2). Once the desired methane percentage is displayed, press OK (F4). The display will move to the view of the concentration of each of the subsequent list of gases: Carbon Dioxide (CO2), Nitrogen, Air, Natural Gas, Argon, Propane, Helium, Oxygen, Butane, and Hydrogen (in that order).
  • Page 62 Model FT1 Operation: Gas-SelectX ® Choosing a The FT1 will begin to monitor flow based on the pre-calibrated algorithm for the gas selected in the Gas-SelectX feature. The screen will show the flow in units and the ® total flow similar to the example below: 1162.52 SCFM...
  • Page 63 NOTE: The data shown in brackets < > represents one byte of data. Modbus Modbus Indicators Indicators LED indicator LP3 cycles on and off to indicate that the FT1 is operating. LED indicator LP2 blinks when Modbus signals are received and LP1 blinks when Modbus signals are transmitted.
  • Page 64 2) Command 04: Read input register. 3) Command 06: Preset single register Read Holding Registers (command 03) This command reads the basic variable from the FT1 and has the following format: Request: <Meter Address> <Command code=03> <Register start address high>...
  • Page 65 Model FT1 Model FT1 FT1 Commands Supported by Modbus Register Modbus Data Type Scaling Comment Address Address 0x0D 40014 Spare/ Not used 0x0E 40015 Spare/ Not used 0x0F 40016 Status Status 0x10 40017 Status 2 0x11 40018 Control Register (Write Only)
  • Page 66 Hydrogen percent (float MSB) Hydrogen percent Read Input Read Input Register (FT1 Status, Command 04) This command is used to report the FT1 status information. Register Request: <Meter Address> <Command code=04> <Register address =0> <Register address =0> <Register count =0> <Register count =1> <CRC high>...
  • Page 67 Model FT1 FT1 Commands Supported by Modbus Table 5.3: Status 2 Bits Definitions for Command 04, Modbus Address 30002 Definition Comment Pulse hardware detected Busy Busy Not used Not used Not used Not used Zero CAL-CHECK in process Zero CAL-CHECK fail...
  • Page 68 Model FT1 Model FT1 Modbus Programming Programming Enter the Programming Mode - RS485 Modbus RTU Press the F1 or the F2 key repeatedly, in the normal running mode, until the following screen is shown. This enters the programming mode: SET PARAMETERS?
  • Page 69 Model FT1 Model FT1 Modbus Programming Modbus Communication Protocol and Parameters To program the communication parameters, start at the Main Menu: Communication Parameters MAIN MENU EXIT Then press I/O (F1) to set Inputs/Outputs: SET I/O EXIT Then press COM (F1) to select communication parameters.
  • Page 70 Model FT1 Model FT1 Modbus Programming Modbus Parity=EVEN Communication Parameters Press NXT (F1) repeatedly until the correct selection is shown and then press OK (F4) to accept the setting. Selections are: “NONE” “ODD” “EVEN” Address=02 Press CHG (F1) to change the address and then press OK (F4) to accept the setting.
  • Page 71 Analog Input 4 = Elapsed Time since reset BACnet BACnet Indicators LED indicator LP3 cycles on and off to indicate that the FT1 is operating. Indicators LED indicator LP2 blinks when BACnet signals are received and LP1 blinks when BACnet signals are transmitted.
  • Page 72 MS/TP baud rates: 9600, 19200, 38400, 57600, 76800, 115200 FT1 Character sets supported: ANSI X3.4, UTF-8 Fox Thermal Instruments BACnet vendor ID: 650 For more information about BACnet visit http://www.bacnet.org/. BACnet Enter the Programming Mode - BACnet MS/TP Press the F1 or the F2 key repeatedly, in the normal running mode, until the following Programming screen is shown.
  • Page 73 Model FT1 Model FT1 BACnet Programming BACnet PASWD:_ Programming Enter the correct password. Default password for Level 1 is 1234. BACnet Communication Protocol and Parameters To program the communication parameters, press I/O (F1) key from the main menu. Communication Parameters...
  • Page 74 Model FT1 BACnet Programming BACnet Next select the MS/TP Mac address. The selection is from 0-127. Please note that only one device can be on a MS/TP Mac address. Communication Parameters MAC_ADD=23 Next select the MS/TP Max Master using CHG (F1). The selection is from 0-127.
  • Page 75 Model FT1 HART Introduction HART Scope The Fox Thermal Instruments’ Model FT1 transmitter complies with HART Protocol Introduction Revision 7.1. This section specifies all the device-specific features and documents HART Protocol implementation details (e.g., the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART-capable Host Applications.
  • Page 76 Primary Variable. HART Communication is supported on this loop. The 4 to 20mA output of the FT1 should be configured for flow rate when using HART. If the 4 to 20mA output is set to report temperature, HART communication will report the 4 to 20mA value for temperature rather than flow.
  • Page 77 Model FT1 HART Programming Status Status Information Device Status Information Bit 4 ("More Status Available") is set when any failure is detected. Command #48 provides additional detail. Extended Device Status This bit is set if a sensor error is detected. "Device Variable Alert" is set if the PV is out of limit.
  • Page 78 Fixed current mode is implemented, using Command 40. This mode is cleared by power loss or reset. Damping Damping is standard, affecting only the PV and the loop current signal. Capability Checklist Manufacturer, model Fox Thermal Instruments, FT1 Device type Transmitter HART revision Device Description available Number and type of sensors...
  • Page 79 Model FT1 HART Programming Enter the Programming Mode - HART Press the F1 or the F2 key repeatedly, in the normal running mode, until the following screen is shown. This enters the programming mode: SET PARAMETERS? Press YES (F4) and then the following screen will prompt the user to enter the...
  • Page 80 Model FT1 Model FT1 Maintenance: Precautions Precautions PRECAUTIONS WARNING! BEFORE ATTEMPTING ANY MAINTENANCE, TAKE THE NECESSARY SAFETY PRECAUTIONS BEFORE REMOVING THE PROBE FROM THE DUCT (EXAMPLE: PURGE LINES OF TOXIC AND/OR EXPLOSIVE GAS, DEPRESSURIZE, ETC...). WARNING! EXPLOSION HAZARD. DO NOT REMOVE OR REPLACE COMPONENTS OR FUSES UNLESS POWER HAS BEEN DISCONNECTED WHEN A FLAMMABLE OR COMBUSTIBLE ATMOSPHERE IS PRESENT.
  • Page 81 Your Meter" on p. 97. Flow Calibration and Calibration Validation To ensure continued high accuracy of your Model FT1 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 two years of operation to maintain absolute accuracy.
  • Page 82 Model FT1 Instructions for Removing and Inserting the Meter from a Pressurized Pipe using the Retractor WARNING! Possible injury or damage to equipment may occur if the retractor is not used correctly. Please read the following instructions carefully prior to using the retractor.
  • Page 83 Model FT1 Step 2 - Remove the Probe from the Retractor Body 5. After removing the probe from the flow stream (#1-4 on previous page), slowly loosen the Swage Fitting (see figure 8.2), until the pressure in the retractor is relieved.
  • Page 84 Model FT1 How to Insert the Probe into the Flow Stream (Valve closed, System Pressurized) 1. Carefully, slide the probe into the retractor. 2. Install the collar clamp just below the collar spacer, and tighten it in place on the probe.
  • Page 85 Model FT1 4. Verify that the probe is aligned with the centerline of the pipe, and pointed in the direction of flow. Figure 8.4 Flow Direction Indicator Swage Nut & Ferrules Swage Fitting 5. Secure the probe in place by tightening the Swage Nut with a 1 1/8" wrench and a 1 1/4"...
  • Page 86 Customer Service Department, Technical Assistance at (831) 384-4300. LED Indicators The LED indicators near the terminal blocks of the FT1 display the status of the FT1. The Heartbeat LED blinks fast when the FT1 is powered up, and blinks about once a second when the FT1 operates normally.
  • Page 87 Model FT1 Model FT1 Troubleshooting: General Problem Possible Cause Action Meter resets 1. Electromagnetic 1. Check meter power cycles value interference (EMI) 2. Press and release F1 and F2 at the same 2. Low power supply voltage time; the display will enter Engineering or intermittent power screens.
  • Page 88 Troubleshooting: Zero CAL-CHECK ® Troubleshooting Troubleshooting Zero CAL-CHECK ® If the FT1 Meter fails a Zero CAL-CHECK Calibration Validation test, there are Zero CAL-CHECK ® a few reasons that could be the cause: 1. The sensor may be dirty or damaged •...
  • Page 89 2. Inadequate power source. The FT1 requires 12 to 28VDC at up to 6 Watts to operate. A 20 Watt power supply is recommended for powering the FT1 to ensure it operates properly under all conditions. If the voltage supplied at the input terminals of the FT1 is not within...
  • Page 90 Model FT1 Troubleshooting: Alarm Codes Alarm Codes Alarm Codes Information to diagnose and clear alarm codes is on p. 7 under the Menu Tree section. Enter password (9111) and follow the block diagram to get to the section affected by the error code.
  • Page 91 0-11,700 0-18,450 NOTE: To determine if the FT1 will operate accurately in other pipe sizes, divide the maximum flow rate by the pipe area. The application is acceptable if the resulting velocity is within the velocity range above. Check Fox website for velocity calculator.
  • Page 92 *NOTE: Display dims below -4˚F (-20˚C), function returns once temperature rises again. Input Power: 12 to 28VDC, 6 watts minimum (CE requirement) Full Input Power Range: 10 to 30VDC. A 20 Watt or greater power supply is recommended to power the FT1. Outputs: Channel 1: Standard isolated 4 to 20mA output configured to indicate either flow or temperature;...
  • Page 93 Model FT1 Appendices: Specifications Physical Specs Physical Specs Sensor material: 316 stainless steel Enclosure: NEMA 4, aluminum, dual ¾” FNPT conduit entries. Retractor Assembly: 150 psig (10.3 barg) max Flow Meter Installation: Fox-supplied compression fitting connects to customer-supplied ¾” female coupling welded to pipe.
  • Page 94 Model FT1 Appendices: Dimensions Local Fig. 7.1 Insertion Meter Dimensions Measurements shown in inches (millimeters). 5.97 [151.6] 4.64 [118.0] 2.60 [66.1] 2X 3/4˝ FNPT PORTS 6.70 [170.3] ELECTRONICS ENCLOSURE SET SCREWS FLOW DIRECTION INDICATOR PROBE ˝LL˝ NOMINAL LENGTH C L SENSING AREA .73 [18.5]...
  • Page 95 Model FT1 Appendices: Dimensions Local with Fig. 7.2 Insertion Meter with 150 psig Retractor Dimensions Measurements shown in inches (millimeters). Retractor (155.0) 4.64 (118.0) (61.0) 6.70 2X 3/4" NPT (160.0) (170.3) FEMALE RESTRAINT CABLE RESTRAINT CABLE MOUNT RETRACTOR WITH 1 INCH FULL PORT BALL VALVE 9.0±.3...
  • Page 96 Model FT1 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 97 Model FT1 Appendices: Returning Your Meter 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 98 Model FT1 Definitions Glossary of Terms and Definitions NIST National Institute of Standards and American Wire Gauge Technology Bara Bar absolute Normal Liter Contact NLPH Normal Liter per Hour Calibration NLPM Normal Liter per Minute Change Normal cubic Meter Communication...
  • Page 99 Model FT1 Index Index Analog 4 to 20mA Output, p. 39 Alarm Output, p. 42 Changing values or strings, p. 38 Access to Electronics, p. 26 Display Setup, p. 43 Alarm Codes, p. 90 Filter value, p. 49 Alarm wiring, p. 31 Flow cutoff, p.
  • Page 100 Wiring Definition of Terms Troubleshooting Tips Notes and Information WARNING! is used to indicate a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION! - is used to indicate a hazardous situation which, if not avoided, could result in minor or moderate injury.