Greyline AVFM 5.0 User manual

www.greyline.com
USER'S GUIDE
Installation & Operation
Instructions
Area-Velocity Flow Meter
Model AVFM 5.0
Manual Series A.2.3

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AVFM 5.0 Area-Velocity Flow Meter
INDEX
CONNECTIONS ................................................................................................4
FUNCTION TEST..............................................................................................4
KEYPAD SYSTEM............................................................................................6
CALIBRATION MENU.....................................................................................7
ICONS.................................................................................................................8
MESSAGE ICON ...............................................................................................9
STATUS..............................................................................................................9
PASSWORD.....................................................................................................10
UNITS/MODE..................................................................................................11
CALIBRATION................................................................................................12
RELAY PARAMETERS..................................................................................16
SPECIAL FUNCTIONS...................................................................................17
INSTALLATION - SENSOR LOCATION......................................................19
ENCLOSURE INSTALLATION.....................................................................23
FIELD TROUBLESHOOTING........................................................................25
APPLICATIONS HOTLINE............................................................................27
PRODUCT RETURN PROCEDURE...............................................................28
AREA-VELOCITY FLOW DATA SHEET .....................................................29
APPENDIX A – OPTIONS...............................................................................31
DATA LOGGING (OPTIONAL).........................................................................39
SPECIFICATIONS...........................................................................................41
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.
Available in Adobe Acrobat pdf format

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AVFM 5.0 Area-Velocity Flow Meter
CONNECTIONS
POWER INPUT: 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: 9-32 VDC. 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).
FUNCTION TEST:
Connect the sensor to the sensor terminals as shown on next page, then
apply power. Allow 30 seconds for the AVFM 5.0 to initialize.
A. Place QZ02L sensor (flat to the bottom) in a bucket of water
about 6” deep and select Level mode (from UNITS/MODE
menu) to see a level reading.
B. Select Velocity mode and stir the water to see a velocity
reading.

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AVFM 5.0 Area-Velocity Flow Meter
CONNECTIONS

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AVFM 5.0 Area-Velocity Flow Meter
KEYPAD SYSTEM
The AVFM 5.0 uses a 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
(underline) under numerals and increase or decrease numerals with the and keys.
To store calibration values permanently (even through power interruptions), press .

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AVFM 5.0 Area-Velocity Flow Meter
CALIBRATION MENU

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AVFM 5.0 Area-Velocity Flow Meter
ICONS

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AVFM 5.0 Area-Velocity 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 AVFM 5.0
will start-up with this display.
MESSAGE ICON
Press from the main display to view temperature measurement, 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 Will be displayed in ft/sec or m/sec.
Level Is displayed in the selected units.
Tot Displays the current totalizer reading.
Signal Cutoff Adjust the setting in percent to suppress flow readings
at zero flow when fluid swirling or pipe vibration may
cause the instrument to continue reading. Example:
Signal Cutoff at 5% will force the display and
outputs to zero when signal strength drops below 5%.
Signal Strength Displays percentage of signal being received by the
ultrasonic sensor.
EC Displays level measurement Echo Confidence
Relays 1 2 3 4 5 6 Energized relays will display with reversed font eg:

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AVFM 5.0 Area-Velocity 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 pan through Level,Velocity and Flow
summaries. 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 to get to Password. Factory default password is
0000 and if it has not been changed press 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.