Greyline Instruments PTFM-1.0 Operating Manual
USER'S GUIDE
Installation & Operation
Instructions
Portable Transit Time Flow Meter
Model PTFM 1.0
www.greyline.com
Manual Series A.1.6
Note: This page has been left blank intentionally.
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PTFM 1.0 Portable Transit Time Flow Meter
INDEX
BATTERY.................................................................................................................4
CONNECTIONS.......................................................................................................4
QUICK BENCH TEST..............................................................................................5
SENSOR INSTALLATION......................................................................................6
KEYPAD SYSTEM ..................................................................................................7
CALIBRATION MENU ...........................................................................................8
ICONS .......................................................................................................................9
MESSAGE.................................................................................................................10
STATUS ....................................................................................................................10
PASSWORD..............................................................................................................11
UNITS/MODE...........................................................................................................12
SET UP......................................................................................................................13
CALIBRATION ........................................................................................................15
DATA LOGGING.....................................................................................................16
SPECIAL FUNCTIONS............................................................................................17
SENSOR MOUNTING .............................................................................................19
FIELD TROUBLESHOOTING................................................................................24
COMMON QUESTIONS AND ANSWERS............................................................26
APPLICATIONS HOTLINE.....................................................................................28
PRODUCT RETURN PROCEDURE.......................................................................28
FLOW METER DATA SHEET................................................................................29
APPENDIX A - CONVERSION TABLE.................................................................33
PIPE CHARTS ..........................................................................................................34
APPENDIX B – Liquid Speed of Sound...................................................................38
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.
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PTFM 1.0 Portable Transit Time Flow Meter
BATTERY
- A built-in rechargable NiMH battery supplies power for 18 hours continuous operation when fully
charged.
- Display brightness is adjustable to conserve power.
- State of charge is shown for normal use, sleep mode and charging.
- When switched OFF with the AC power module connected the flashing battery indicates charging,
solid battery shows fully charged.
- The PTFM 1.0 will switch off automatically when the battery is fully discharged.
- Full charge requires approximately 6 hours charging.
- Sleep mode extends battery life for long term data logging. Maximum log time is 18 days at 5 minute
sample rate.
CONNECTIONS
SENSORS
Use type SE16B supplied with 12 ft (4 m) coaxial cables and BNC connectors. Set of optional PTC50
50 ft (15 m) extension sensor cables available.
4-20mA
Active only when powered by AC charger, maximum load 500 ohm.
USB
Cable Part #USB-PD is supplied for connecting the PTFM 1.0 to a PC or laptop.
POWER
An AC powered 15 volt DC power module is supplied for battery charging and continuous use.
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PTFM 1.0 Portable Transit Time Flow Meter
COMPOUND
~0.8”
20 mm
QUICK BENCH TEST
In the PTFM 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.
- Press twice to exit Setup and return to main display.
From main display press to view Status menu. Apply coupling compound to the face of sensors and
press together as indicated in the illustration below.
The Status menu should indicate a high Signal Strength (75-100%).
COUPLING
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SENSOR INSTALLATION
PTFM 1.0 Portable Transit Time Flow Meter
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PTFM 1.0 Portable Transit Time Flow Meter
KEYPAD SYSTEM
The following diagram shows the PTFM 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, press the .
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CALIBRATION MENU
PTFM 1.0 Portable Transit Time Flow Meter
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ICONS
PTFM 1.0 Portable Transit Time Flow Meter
1. 2.
Battery 0%. Battery 100%.
1. 2. 3. 4. 5.
1. 2.
1. 2. 3. 4.
Message waiting. Press .
Battery charging.
Charger connected.
Data logging off.
Data logging on.
USB file download.
File download completed.
1. 2. 3.
Download Error.
PTFM Echo OK.
PTFM – No Echo, Empty Pipe.
PTFM – No Sensors Attached /Wrong Settings.
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PTFM 1.0 Portable Transit Time Flow Meter
MAIN DISPLAY
The main display shows the units selected from the Units/Mode menu, Flow or
Velocity rate being measured and TOTALIZER. The PTFM 1.0 will start-up with
this display.
MESSAGE
Press from the MAIN display to view 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 percentage of signal being received by the ultrasonic
sensor.
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PTFM 1.0 Portable Transit Time Flow Meter
24 HR LOG
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.
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PTFM 1.0 Portable 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.
From Temperature press and then or to select C or F (Centigrade or
Fahrenheit).
Press or to return to the Menu Selections screen.
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SET UP
PTFM 1.0 Portable Transit Time Flow Meter
Set Up
Sensor Select
Fluid Vel
V/C(@25C)
Fluid
Fluid Temp
Pipe OD
Pipe Wall
Go directly to Set up.
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.
Place the cursor under 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
Lining Thick
Lining Vel
When pipe = Other – Enter pipe material speed of sound
(consult factory).
Select pipe material.
Select Lining material.
None represents no liner.
Other will require additional information.
When Lining - Other is selected, enter lining
thickness.
When Lining - Other is selected, enter speed of sound
of lining material.
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Crossings
PTFM 1.0 Portable 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 from the Units/Mode display to return to Menu Selections.
NOTE:
Sensor separation distance is automatically calculated by
the instrument and will be displayed in the Setup menu.
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