Greyline Instruments TTFM-1.0 Operating Manual
USER'S GUIDE
Installation & Operation
Instructions
Transit Time Flow Meter
Model TTFM 1.0
www.greyline.com
Manual Series A.3.5
Note: This page has been left blank intentionally.
TTFM 1.0 Transit Time Flow Meter
INDEX
SENSOR INSTALLATION....................................................................................4
CONNECTIONS.....................................................................................................5
KEYPAD SYSTEM................................................................................................8
CALIBRATION MENU .........................................................................................9
ICONS ...................................................................................................................10
MESSAGE ICON..................................................................................................11
STATUS................................................................................................................11
PASSWORD..........................................................................................................12
UNITS/MODE.......................................................................................................13
SET UP ..................................................................................................................14
CALIBRATION....................................................................................................16
RELAY PARAMETERS.......................................................................................17
SPECIAL FUNCTIONS........................................................................................18
SENSOR MOUNTING.........................................................................................20
ENCLOSURE INSTALLATION..........................................................................25
FIELD TROUBLESHOOTING............................................................................26
COMMON QUESTIONS AND ANSWERS........................................................29
APPLICATIONS HOTLINE.................................................................................31
PRODUCT RETURN PROCEDURE...................................................................31
APPENDIX A – OPTIONS...................................................................................34
DATA LOGGING.................................................................................................38
SPECIFICATIONS................................................................................................40
APPENDIX B - CONVERSION TABLE.............................................................41
PIPE CHARTS ......................................................................................................42
APPENDIX C – LIQUID SPEED OF SOUND....................................................46
IMPORTANT NOTE: This instrument is manufactured and calibrated to meet product specifications.
Please read this manual carefully before installation and operation. Any unauthorized repairs or
modifications may result in a suspension of the warranty.
If this product is not used as specified by the manufacturer, protection may be impaired.
Available in Adobe Acrobat pdf format
Page 3
SENSOR INSTALLATION
TTFM 1.0 Transit Time Flow Meter
Page 4
TTFM 1.0 Transit Time Flow Meter
CONNECTIONS:
POWER INPUT: The standard model requires AC power input between 100 to 240 VAC 50/60Hz. No
adjustments are necessary for voltages within this range. Connect L (Live) N (Neutral) and AC Ground.
Optional DC input model requires 9-32 VDC/9 Watts. Connect to + and - terminals.
Optional Thermostat and Heater modules are available rated for 115 VAC or 230 VAC.
IMPORTANT NOTE: To comply with CSA/UL electrical safety standards, AC power input and relay
connection wires must have conduit entry to the instrument enclosure. Installation requires a switch,
overcurrent fuse or circuit breaker in the building (in close proximity to the equipment) that is marked as
the disconnect switch.
Risk of electric shock. Loosen cover screw to access connections. Only qualified personnel
should access connections.
Note: Use of instrumentation over 40°C ambient requires special field wiring.
Note: User replaceable fuse is 2 Amp 250V (T2AL250V), located on the power supply.
Page 5
CONNECTIONS
TTFM 1.0 Transit Time Flow Meter
Page 6
TTFM 1.0 Transit Time Flow Meter
COMPOUND
~0.8”
20 mm
QUICK BENCH TEST:
In the TTFM Setup menu set parameters to perform a bench test:
- Set Fluid = Water
- Set Temperature = 20°C
- Set Pipe OD = 0.15 inch
- Set Pipe Wall = 0.06 inch
- Set Pipe material = ABS
- Set Lining = None
- Set Crossings = 4
- Press to view Signal Strength at bottom of menu.
Apply coupling compound to the face of sensors and press together as indicated in the illustration below.
The menu should indicate large Signal Strength display.
COUPLING
Page 7
TTFM 1.0 Transit Time Flow Meter
KEYPAD SYSTEM
The diagram on page 9 shows the TTFM 1.0 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.
Move the cursor (highlighted) under numerals and increase or decrease numerals with the and
keys.
To store calibration values permanently (even through power interruptions), press the .
Page 8
CALIBRATION MENU
TTFM 1.0 Transit Time Flow Meter
Page 9
ICONS
TTFM 1.0 Transit Time Flow Meter
Page 10
TTFM 1.0 Transit Time Flow Meter
MAIN DISPLAY
The MAIN display shows the units selected from the Units/Mode menu, Flow or
Velocity rate being measured, TOTALIZER and RELAY states. The TTFM 1.0
will start-up with this display.
MESSAGE ICON
Press from the MAIN display to view status of the data logger and
error/warning messages provided by the instrument. The Message Icon will
appear on the MAIN display if error messages are being generated by the
instrument. Press to return to the main display.
STATUS
Press from the MAIN display to view instrument status.
Velocity Displayed in ft/sec or m/sec.
Signal Strength Displays magnitude of signal being received by the ultrasonic
sensor.
Relays Energized relays will display as a white character on a
black background.
Page 11
TTFM 1.0 Transit Time Flow Meter
24 HR LOG (Data Logging option only)
Press from the MAIN display to view a formatted flow report from instruments
with a built-in data logger. Press to scroll down one day or repeatedly to scroll
to a specific date. Up to 365 days can be stored. Newest date will overwrite the
oldest. Press to return to the main display.
PASSWORD
The password (a number from 0000 to 9999) prevents unauthorized access to the
Calibration menu.
From the Main display press the key to get to Password. Factory default
password is 0000 and if it has not been changed press the to proceed to the
Menu Selections screen.
If a password is required, press to place the cursor under the first digit and or
to set the number, then to the second digit, etc. Press or to proceed to
the Menu Selections screen.
A new password can be stored by going to Special Functions/New Password.
Page 12
TTFM 1.0 Transit Time Flow Meter
UNITS/MODE
From Mode press the and then the or to select Flow or Velocity.
Flow mode displays the flow rate in engineering units (e.g. gpm, litres/sec, etc.)
Press the to store your selection then the to the next menu item and to
enter.
From Linear press the key and then the or to select your units of
measurement. Press the to store your selection.
Press the key to move the symbol to each subsequent menu item and the
to save your selections.
Note: the volume selection "bbl" denotes U.S. oil barrel.
Press or to return to the Menu Selections screen.
Page 13
SET UP
TTFM 1.0 Transit Time Flow Meter
Sensor Select
Fluid Vel
V/C(@25C)
Fluid
Fluid Temp
Pipe OD
Pipe Wall
Choose SE16B.
When Fluid = Other – Enter the fluid velocity at 25C
from table or other reference in units of m/s
When Fluid = Other – Enter fluid velocity adjustment
factor over change in temperature in units of m/s per °C.
Select fluid type.
Other will require additional information.
Enter average fluid temperature.
Highlight the digits and thenorto change the
numbers and decimal point. Pipe OD should be entered
as the exact outside diameter of the pipe where the sensor
is mounted. Refer to the Pipe Charts Appendix in this
manual for outside diameter of common pipe types and
sizes.
Enter wall thickness.
Refer to the Pipe Charts Appendix in this manual for
thickness of common pipe materials and sizes.
Pipe Vel
Pipe
Lining Thick
Lining Vel
Lining
When pipe = Other – Enter pipe material speed of sound
(consult factory).
Select pipe material.
When Lining – Enter lining thickness
When Lining = Other – Enter speed of sound of lining
material.
Select Lining material.
None represents no liner. Other will require additional
information.
Page 14
Crossings
TTFM 1.0 Transit Time Flow Meter
1 = Z mounting
2 = V mounting
4 = W mounting
Zero Tare
To suppress readings or fluctuations at zero flow. Set
Calibration/Damping to 5% and under no flow conditions
and full pipe select Yes to force readings to zero.
Sens Space
Velocity
Signal Strength
Displays the calculated sensor spacing
Displays the measured velocity.
Displays magnitude of signal being received by the
ultrasonic sensor.
Press to return to Menu Selections.
NOTE:
Sensor separation distance is automatically calculated by
the instrument and will be displayed in the Setup menu
Page 15
TTFM 1.0 Transit Time Flow Meter
CALIBRATION
Press to Calibration and to enter. Use or to position before each
menu item and to enter. When settings are completed press to store and
return to the Calibration menu.
20mA at
4mA at
Min Flow
Damping
Pressthenorto change the numbers and decimal
point. Use this menu to set the corresponding flow rate
that will be represented by 20mA analog output. If
maximum flow is unknown, enter an estimated flow rate
and observe actual flow to determine the correct
maximum value. Any velocity or flow rate up to +40
ft/sec (12.2 m/sec) may be selected.
Pressorto set the flow rate corresponding to 4mA
analog output. This setting may be left at zero flow (or
velocity or can be raised to any value less than the 20mA
setting, or lowered to any velocity or corresponding flow
rate down to -40 ft/sec (-12.2 m/sec).
Flow rates below this setting will be displayed as zero
flow.
Increase damping to stabilize readings under turbulent
flow conditions. Decrease for fast response to small
changes in flow. Damping is shown in percentage
(maximum is 99%). Factory default is 20%.
Press to return to Menu Selections.
Page 16
Loading...