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Greyline TTFM 6.1 User Manual

Transit time flow meter
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USER'S GUIDE
Installation & Operation
Instructions
Transit Time Flow Meter
Model TTFM 6.1
Manual Series A.1.6

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  • Page 1 USER'S GUIDE Installation & Operation Instructions Transit Time Flow Meter Model TTFM 6.1 Manual Series A.1.6...
  • Page 2 Note: This page has been left blank intentionally.
  • Page 3 TTFM 6.1 Transit Time Flow Meter INDEX CONNECTIONS ............................4 KEYPAD SYSTEM ..........................6 MENU SYSTEM ............................7 ICONS ..............................8 MESSAGE ICON ............................. 9 STATUS ..............................9 PASSWORD ............................11 MENU SELECTIONS ..........................11 UNITS/MODE ............................12 SET UP ..............................14 CALIBRATION .............................
  • Page 4 TTFM 6.1 Transit Time Flow Meter CONNECTIONS: POWER INPUT: The standard model requires AC power input between 100 to 240 VAC 50/60Hz 10VA. No adjustments are necessary for voltages within this range. Connect L (Live) N (Neutral) and AC Ground.
  • Page 5 TTFM 6.1 Transit Time Flow Meter 100-240 VAC Meter CONNECTIONS Page 5...

  • Page 6: Keypad System

    TTFM 6.1 Transit Time Flow Meter KEYPAD SYSTEM The diagram on page 7 shows the TTFM 6.1 menu system. Arrows show the four directions to leave a menu box. Pressing a corresponding keypad arrow will move to the next item in the direction shown.

  • Page 7: Menu System

    TTFM 6.1 Transit Time Flow Meter MENU SYSTEM --Units/Mode--------  Mode Flow Linear Volume Multiplier Decimal Velocity ft/s Flow USG/m Decimal emperature Setup------ -------  Senso SE16B Angle 37° Fluid Water Temp Mode Fixed Temp 77.0 F Pipe 4.5000 in Wall 0.2500 in...
  • Page 8 TTFM 6.1 Transit Time Flow Meter ICONS  from main page to view Message waiting. Press Data logging Data logging USB file download File download completed. Download Error. TTFM Echo OK. TTFM - Low Signal / No Echo , Empty Pipe...

  • Page 9: Main Display

    0.00 The Main Display shows the units selected from the Units/Mode menu, flow rate or velocity rate being measured, totalizer, totalizer multiplier, and relay states. The TTFM 6.1 will go to this display after start-up. 20130 USG Relays 1 2 3 4 5 6 MESSAGE ICON Press ...
  • Page 10 TTFM 6.1 Transit Time Flow Meter Status (cont.) Exp. SOS --Status------------ Displays the expected fluid speed of sound  Velocity 0.00 ft/s measurement, in units that match the Velocity. The Flow 0.00 USG/m expected speed of sound is based on the pipe, fluid, and Min Flow 4.00 USG/m...

  • Page 11: Menu Selections

    TTFM 6.1 Transit Time Flow Meter 24 HR LOG Press  from the Main Display to view a formatted flow report. Press  to scroll down one day or repeatedly to scroll to a specific date. Up to 365 days will be stored.
  • Page 12 TTFM 6.1 Transit Time Flow Meter UNITS/MODE --Units/Mode-------- , press the  and then the  or  to select Flow or Velocity. Flow  Mode Flow Mode Linear mode displays the flow rate in engineering units (e.g. gpm, litres/sec, etc.) Press Volume the ...
  • Page 13 TTFM 6.1 Transit Time Flow Meter UNITS/MODE (cont.) , press the and then the  or  to select the engineering units for Flow flow rate. Press  to store your selection then  to the next menu item. Available Flow Rate Engineering Units:...
  • Page 14 TTFM 6.1 Transit Time Flow Meter SET UP Setup------ -------  Senso SE16B Angle 37° Press  or  to position curser at Setup, and  to enter. Use  or  to position Fluid Water cursor before each menu item and  to enter. When settings are completed press...
  • Page 15 Crossings = 2. Greyline suggests starting with Crossings = 1 in cases such as these. Zero Tare Used to calibrate zero-flow measured by the TTFM 6.1 in process. Flow in the pipe should be confirmed as 0 before enabling, or significant errors in flow accuracy could occur.
  • Page 16 TTFM 6.1 Transit Time Flow Meter SET UP (cont.) Setup------ -------  Senso SE16B Signal Displays magnitude of signal being received by the ultrasonic Angle 37° Strength Fluid Water sensor. Should be 100% under ideal operating conditions. Temp Mode Fixed...
  • Page 17 If a complete loss of signal is experienced, the TTFM 6.1 will hold the last valid reading for the duration of the LOS Time. If the signal strength...
  • Page 18 TTFM 6.1 Transit Time Flow Meter CALIBRATION (cont.) --Calibration-------  Mode Flow 20mA 500.00 USG/m Damping 0.00 USG/m LOS Time 10 sec Mode Min Flow 4.00 USG/m Choose between OFF, FIR (Default), or LOW PASS. Damping Mode When measured flows are outside the Window of the running...

  • Page 19: Relay Parameters

    TTFM 6.1 Transit Time Flow Meter --Relay Parameters-- RELAY PARAMETERS  Relay Function Flow Press  or  to position curser at Relay Parameters, and  to enter. Use  or  1000 USG to position cursor before each menu item and  to enter. When settings are 0.000 USG...

  • Page 20: Data Logging

    File Format Choose .LG2 to download data in .lg2 format for viewing on Greyline Logger software. Choose .CSV to download data in .csv format for import directly to Excel. This menu option can be changed at any time without adversely affecting existing data.
  • Page 21 TTFM 6.1 Transit Time Flow Meter RETRIEVING LOG FILE Plug a USB Flash Memory Drive (one is included with the TTFM 6.1) into the USB output port on the Panel of the meter. The instrument display will show the data download icon until the log file is transferred to the memory card. The USB flash drive may be removed when the icon for download successful appears.

  • Page 22: Communication (Optional)

    Connections: HART Protocol uses a digital signal superimposed on the 4- 20mA output. When the 4-20mA output of the TTFM 6.1 is connected with a load resistor (230Ω to 600Ω), the HART communicator can be connected on the loop in order to communicate.
  • Page 23 Press  or  to select, and  to store the setting. Options: 1 (Modbus) or 2 (Default: 1). Note: The Modbus register table, and HART configuration instructions can be found in separate TTFM 6.1 Serial Communications Manual. Page 23...

  • Page 24: Special Functions

    TTFM 6.1 Transit Time Flow Meter SPECIAL FUNCTIONS --Special Functions-  Language English Analog Out 4-20mA Press  or  to position curser at Special Functions, and  to enter. Use  or  Backlight High to position cursor before each menu item and  to enter. When settings are Reset Totalizer completed press ...
  • Page 25  Language English This function should only be used when instructed by a Analog Out 4-20mA Greyline representative to do so. The function captures Backlight High the ultrasonic signal so that it can be evaluated by Reset Totalizer Neg. Totals Greyline.
  • Page 26 TTFM 6.1 Transit Time Flow Meter SIMULATION Press  or  to position curser at Simulation, and  to enter. Use  or  to position cursor before each menu item and  to enter. When settings are completed press  to store and  again to return to the Main Menu.
  • Page 27 TTFM 6.1 Transit Time Flow Meter TYPICAL SENSOR INSTALLATION Page 27...
  • Page 28 A sanding block is included with every meter to facilitate proper pipe preparation. A Sensor Mounting Kit is supplied with each Greyline flow meter. It includes recommended coupling compound and a stainless steel mounting bracket with adjustable pipe straps. Use the Alignment Bar (included) to align sensor brackets for V and W mode mounting.
  • Page 29 Warm temperatures, moisture and vibration will accelerate this process. Super Lube® as supplied with the TTFM 6.1 (and available from Greyline Instruments or home improvement stores) is recommended for permanent installations.

  • Page 30: Sensor Mounting Location

    TTFM 6.1 Transit Time Flow Meter SENSOR MOUNTING LOCATION The position of the sensor is one of the most important considerations for accurate flow measurement. The same location guidelines apply to Transit Time as most other flow meter technologies. VERTICAL OR HORIZONTAL PIPE - Vertical pipe runs are acceptable, and the transducers can be mounted in any orientation around the pipe.
  • Page 31 TTFM 6.1 Transit Time Flow Meter SEPARATION DISTANCE (Sensor Spacing Distance) Separation distance is automatically calculated by the TTFM 6.1 based on parameters entered in the Setup menu. Sens Space is parameter where this distance is given, and it is located in the Setup menu.
  • Page 32 TTFM 6.1 Transit Time Flow Meter 2 OR 4 CROSS INSTALLATION OVERVIEW - TMK-B1 Kit (Cont.) 3. Use alignment bar to ensure the brackets are parallel. Completion of steps 2 & 3 is shown below. 4. Mark the position of the permanent bracket on the pipe. This is the bracket that will not be adjusted, and will be used as the reference for the separation distance and alignment.
  • Page 33 5. Measure the separation distance from the mark you created in step 4, and create a new mark on the pipe at the separation distance. It may be useful to mark your Greyline tape measure (included with every meter) at the separation distance point before marking the pipe. The marked pipe is shown below.
  • Page 34 TTFM 6.1 Transit Time Flow Meter 2 OR 4 CROSS INSTALLATION OVERVIEW - TMK-B1 Kit (Cont.) Proper coupling compound application: Finished installation, ready for cable connection: 7. If you need to make fine adjustments (±0.25”) to the spacing at this point, you may do so by loosening the hose clamps slightly, and sliding the brackets while the transducers are installed inside them.
  • Page 35 TTFM 6.1 Transit Time Flow Meter SEPARATION DISTANCE (Sensor Spacing Distance) Separation distance is automatically calculated by the TTFM 6.1 based on parameters entered in the Setup menu. Sens Space is parameter where this distance is given, and it is located in the Setup menu.
  • Page 36 TTFM 6.1 Transit Time Flow Meter 2. Install one of the stainless steel mounting brackets on the pipe. This will be the stationary bracket not being rotated to the opposite side of the pipe. For a horizontal pipe, position the bracket at 3 or 9 o’clock.
  • Page 37 5. Measure the separation distance from the marks you created in step 4, and create new marks on the pipe at the separation distance. It may be useful to mark your Greyline tape measure at the separation distance before holding it up to and marking the pipe.
  • Page 38 TTFM 6.1 Transit Time Flow Meter 6. Using the mylar sleeve included with the installation kit, wrap it around the pipe, keep it taut, and with the Sharpie, draw a line anywhere the sleeve overlaps: 7. Lay the mylar sleeve flat, use duct tape to help hold it flat if you need to, and use the tape...
  • Page 39 TTFM 6.1 Transit Time Flow Meter 8. Position the marked mylar back on the pipe, with the overlap marks on the center line of the transducer bracket that will be rotated to the other side of the pipe. Be sure the mylar is parallel with the face of the transducer.
  • Page 40 TTFM 6.1 Transit Time Flow Meter 9. Sand the pipe at this position if it needs to be prepped because of scale or rust. After prepped, move the bracket to this 1 cross mark, and tighten it in place. Apply coupling compound to the...
  • Page 41 TTFM 6.1 Transit Time Flow Meter Finished installation: 10. If you need to make fine adjustments (±0.25”) to the spacing at this point, you may do so by loosening the hose clamps slightly, and sliding the brackets while the transducers are installed inside them.
  • Page 42 TTFM 6.1 Transit Time Flow Meter SEPARATION DISTANCE (Sensor Spacing Distance) Separation distance is automatically calculated by the TTFM 6.1 based on parameters entered in the Setup menu. Sens Space is parameter where this distance is given, and it is located in the Setup menu.
  • Page 43 TTFM 6.1 Transit Time Flow Meter 2 OR 4 CROSS INSTALLATION OVERVIEW - TMK-B21 or TMK-B22 Kit (Cont.) 2. Install the spacer bar onto the right bracket as shown below: 3. Insert the spacer bar into the left bracket, and position the bracket at the separation distance referenced earlier.
  • Page 44 TTFM 6.1 Transit Time Flow Meter 2 OR 4 CROSS INSTALLATION OVERVIEW - TMK-B21 or TMK-B22 Kit (Cont.) 4. Place the bracket assembly on the pipe, tighten it in place with the two hose clamps: 5. Apply coupling compound to the transducers, and install them in the brackets.
  • Page 45 TTFM 6.1 Transit Time Flow Meter 2 OR 4 CROSS INSTALLATION OVERVIEW - TMK-B21 or TMK-B22 Kit (Cont.) Proper coupling compound application: Finished installation, ready for cable and conduit connection: 6. If you need to make fine adjustments (±0.25”) to the spacing at this point, you may do so by loosening the hose clamps slightly, and sliding the brackets while the transducers are installed inside them.
  • Page 46 TTFM 6.1 Transit Time Flow Meter SEPARATION DISTANCE (Sensor Spacing Distance) Separation distance is automatically calculated by the TTFM 6.1 based on parameters entered in the Setup menu. Sens Space is parameter where this distance is given, and it is located in the Setup menu.
  • Page 47 TTFM 6.1 Transit Time Flow Meter 2. Install the spacer bar onto the right bracket as shown below: 3. Insert the spacer bar into the left bracket, and position the bracket at the separation distance referenced earlier. Tighten the spacer bar clamp at this position:...
  • Page 48 TTFM 6.1 Transit Time Flow Meter 4. Place the bracket assembly on the pipe, tighten it in place with the two hose clamps. For a horizontal pipe, position the bracket at 3 or 9 o’clock. Hold the level up to the top of the bracket to ensure the angle is correct.
  • Page 49 TTFM 6.1 Transit Time Flow Meter 6. Using the mylar sleeve included with the installation kit, wrap it around the pipe, keep it taut, and with the Sharpie, draw a line anywhere the sleeve overlaps: 7. Lay the mylar sleeve flat, and use the tape measure to measure half way between the two marks...
  • Page 50 TTFM 6.1 Transit Time Flow Meter 8. Position the marked mylar back on the pipe, with the overlap marks on the center line of the transducer bracket that will be rotated to the other side of the pipe. Be sure the mylar is parallel with the face of the transducer.
  • Page 51 TTFM 6.1 Transit Time Flow Meter 9. Sand the pipe at this position if it needs to be prepped because of scale or rust. After prepped, move the bracket to this 1 cross mark, and tighten it in place. Apply coupling compound to the...
  • Page 52 TTFM 6.1 Transit Time Flow Meter Proper coupling compound application: Finished installation: 10. If you need to make fine adjustments (±0.25”) to the spacing at this point, you may do so by loosening the hose clamps slightly, and sliding the brackets while the transducers are installed inside them.
  • Page 53 TTFM 6.1 Transit Time Flow Meter SENSOR MOUNTING/COUPLING RECOMMENDATIONS Page 53...

  • Page 54: Enclosure Installation

    TTFM 6.1 Transit Time Flow Meter ENCLOSURE INSTALLATION Locate the enclosure within 25 ft (7.6 m) of the sensors (up to 100 ft - 30 m optional). The enclosure can be wall mounted with the four mounting screws (included) or panel mounted with Option PM Panel Mount kit from Greyline Instruments.

  • Page 55: Field Troubleshooting

    TTFM 6.1 Transit Time Flow Meter FIELD TROUBLESHOOTING Corrective Action: Possible Causes: METER READING WHEN THERE IS NO FLOW?  Calibration Damping Erratic measurement (set damping to with zero flow use Setup Tare 0% to check) due to electrical noise function.
  • Page 56 TTFM 6.1 Transit Time Flow Meter Corrective Action: Possible Causes: NO ECHO INDICATION Icon: No Echo (cont.)  Empty pipe or partially filled Pipe must be fluid filled and acoustically transparent in order to obtain echoes.  Coupling compound washed out, or Remount sensor ...
  • Page 57 High readings indicate an open circuit and low readings indicate a short or partial short in the sensor cable connections or transducer. Note: The TTFM 6.1 will automatically detect connectivity to the sensors. Confirm that TTFM 6.1 Sensor Good indicates “...

  • Page 58: Common Questions And Answers

    COMMON QUESTIONS AND ANSWERS The pipe vibrates. Will it affect the flow meter? Common vibration frequencies are far lower than the sonic frequencies used by the Greyline flow meter, and will not normally affect accuracy or performance. However, applications where very weak Transit Time signal is present (when sensitivity is adjusted to maximum and signal strength is low), accuracy may be affected by pipe vibration, or the flow meter may show readings under no-flow conditions.
  • Page 59 Can I change the length of the sensor cable? Yes. The Greyline Transit Time design allow cable lengths up to 100 ft (30 m) or extension up to 250 ft with extra cable and JB2X optional junction box. Replacement cable of different length may be installed in rigid or flexible conduit for mechanical protection.

  • Page 60: Applications Hotline

    Instruments may be returned to Greyline for service or warranty repair. Obtain an RMA Number from Greyline - Before shipping a product to the factory please contact Greyline by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). This ensures fast service and correct billing or credit.

  • Page 61: Limited Warranty

    Greyline will replace or repair, free of charge, any Greyline product if it has been proven to be defective within the warranty period. This warranty does not cover any expenses incurred in the removal and re-installation of the product.
  • Page 62 TTFM 6.1 Transit Time Flow Meter ENCLOSURE HEATER AND THERMOSTAT - Option TH Instruments can be factory-equipped with an Enclosure Heater and Thermostat or the module can be customer-installed. The Thermostat is factory set to turn ON at 40°F (4.5°C) and OFF at 60°F (15.5°C).
  • Page 63 TTFM 6.1 Transit Time Flow Meter POWER INPUT OPTION 9-32VDC TTFM 6.1 Flow Meters may be ordered factory-configured for 9-32VDC power input, or a 9-32VDC Power Input card can be installed in the place of the 100-240VAC card in the field. CONNECTIONS: POWER INPUT: Connect 9-32VDC to the + and - terminals.

  • Page 64: Specifications

    TTFM 6.1 Transit Time Flow Meter SPECIFICATIONS 7.4 / 188 mm " 6.46 / 164 mm " 5.12 / 130 mm " Flow Rate Range: ±0.07 to 40 ft/sec (±0.02 to 12 m/sec) Pipe Size: 2” to 48” (50 to 1200 mm) Accuracy: ±1% of flow rate from 1.5...

  • Page 65: Appendix A - Conversion Table

    TTFM 6.1 Transit Time Flow Meter APPENDIX A - CONVERSION TABLE CONVERSION GUIDE FROM MULTIPLY BY US GALLONS CUBIC FEET 0.1337 US GALLONS IMPERIAL GALS 0.8327 US GALLONS LITRES 3.785 US GALLONS CUBIC METERS 0.003785 LITRES/SEC 15.85 LITRES CUBIC METERS 0.001...

  • Page 66: Pipe Charts

    TTFM 6.1 Transit Time Flow Meter PIPE CHARTS Note: Not all pipe types allowed in programming have charts below. Pipe dimensions will need to be acquired from pipe markings or the pipe manufacturer in such cases. Carbon Steel & PVC Pipe...
  • Page 67 TTFM 6.1 Transit Time Flow Meter Stainless Steel, Hastelloy "C" & Titanium Pipe Pipe Pipe Scheule 5 S (a) Schedule 10 S (a) Schedule 40 S Schedule 80 S Size O.D. I.D. WALL I.D. WALL I.D. WALL I.D. WALL 2.375 2.245...
  • Page 68 TTFM 6.1 Transit Time Flow Meter Cast Iron Pipe - ASA Standard Pipe Pipe Class 50 Class 100 Class 150 Class 200 Class 250 Class 300 Class 350 Size O.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D. WALL I.D.
  • Page 69 TTFM 6.1 Transit Time Flow Meter Copper Tubing Pipe Copper & Brass Pipe Aluminum Size O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL O.D. I.D. WALL 2" 2.125 1.959 0.083 2.125 1.985 0.070 2.125 2.009 0.058 2.375...
  • Page 70 TTFM 6.1 Transit Time Flow Meter C900/C905 PVC AWWA Water Distribution Pipe (Blue) DR14 DR18 DR-21 DR25 Pipe Size Wall Wall Wall Wall 4.80 0.343 4.114 0.267 4.266 0.192 4.416 6.90 0.493 5.914 0.383 6.134 0.276 6.348 9.05 0.646 7.758 0.503...
  • Page 71 APPENDIX C – Liquid Speed of Sound Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Acetic anhydride (22) 1.082 (20ºC) 1180 Acetic acid, anhydride (22) 1.082 (20ºC) 1180 Acetic acid, nitrile 0.783 1290 Acetic acid, ethyl ester (33) 0.901 1085 Acetic acid, methyl ester...
  • Page 72 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Carbon tetrafluoride (14) 1.75 (-150ºC) 875.2 6.61 Cetane (23) 0.773 (20ºC) 1338 3.71 Chloro-benezene 1.106 1273 1-Chloro-butane (22,46) 0.887 1140 4.57 Chloro-diFluoromethane (3) (Freon 22) CHClF 1.491 (-69ºC)
  • Page 73 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Dihydroxyethane 1.113 1658 1,3-Dimethyl-benzene (46) 0.868 (15ºC) 1343 1,2-1.0Dimethyl-benzene(29,46) 0.897 (20ºC) 1331.5 1,4-Dimethyl-benzene (46) 1334 2,2-Dimethyl-butane (29,33) 0.649 (20ºC) 1079 Dimethyl ketone 0.791...
  • Page 74 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Glycerol 1.26 1904 Glycol 1.113 1658 Helium (45) 0.125(-268.8ºC) Heptane (22,23) 0.684 (20ºC) 1131 4.25 n-Heptane (29,33) 0.684 (20ºC) 1180 Hexachloro-Cyclopentadiene(47) 1.7180...
  • Page 75 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Methylene chloride (3) 1.327 1070 3.94 Methylene iodide 3.235 Methyl formate (22) 0.974 (20ºC) 1127 4.02 Methyl iodide 2.28 (20ºC) 2-Methylphenol (46) 1.047 (20ºC)
  • Page 76 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. Phenyl chloride 1.106 1273 Phenyl iodide (46) 1.823 1114 Phenyl methane (16,52) 0.867 (20ºC) 1328 4.27 3-Phenyl propenal 1.112 1554 Phthalardione 1125...
  • Page 77 TTFM 6.1 Transit Time Flow Meter Δ Substance Form Index Specific Gravity Sound Speed v/°C - m/s/°C m/sec. 1,1,2,2-Tetrabromo-ethane(47) 2.966120 1027 1,1,2,2-Tetrachloro-ethane(67) 1.595 1147 Tetrachloroethane (46) 1.553 (20ºC) 1170 Tetrachloro-ethene (47) 1.632 1036 Tetrachloro-methane (33,47) 1.595 (20ºC) Tetradecane (46) 0.763 (20ºC)
  • Page 78 TTFM 6.1 Transit Time Flow Meter Appendix D Sonic Velocity Relative to Temperature of Pure Water Temp °F Temp °C Velocity ft/s Temp °F Temp °C Velocity ft/s Temp °F Temp °C Velocity ft/s -17.8 4240 100.0 37.8 5003 200.0 93.3...
  • Page 79 TTFM 6.1 Transit Time Flow Meter Sonic Velocity Relative to Temperature of Pure Water Temp °F Temp °C Velocity m/s Temp °F Temp °C Velocity m/s Temp °F Temp °C Velocity m/s -17.8 1292.45 100.0 37.8 1525.03 200.0 93.3 1548.38 -16.7...

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