Greyline Instruments 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.1.5

www.greyline.com

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Page 3
AVFM 5.0 Area-Velocity Flow Meter
INDEX
CONNECTIONS ................................................................................................4
FUNCTION TEST..............................................................................................4
KEYPAD SYSTEM............................................................................................6
CALIBRATION MENU.....................................................................................7
MESSAGE..........................................................................................................8
STATUS .............................................................................................................8
PASSWORD.......................................................................................................9
UNITS/MODE..................................................................................................10
CALIBRATION................................................................................................11
RELAY PARAMETERS..................................................................................15
SPECIAL FUNCTIONS...................................................................................16
INSTALLATION -SENSOR LOCATION......................................................18
ENCLOSURE INSTALLATION.....................................................................22
FIELD TROUBLESHOOTING........................................................................24
APPLICATIONS HOTLINE............................................................................26
PRODUCT RETURN PROCEDURE...............................................................27
AREA-VELOCITY FLOW DATA SHEET.....................................................28
APPENDIX A–OPTIONS...............................................................................30
DATA LOGGING (OPTIONAL).........................................................................36
SPECIFICATIONS...........................................................................................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.
Available in Adobe Acrobat pdf format

Page 4
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 TDCR terminals as shown below, 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.
!
BAD
GOOD

Page 5
AVFM 5.0 Area-Velocity Flow Meter
CONNECTIONS
HEATER OPTION
AC
LN
NO
C
NC
NO
C
NC
–
+
4-20mA
FLOW
RLY2
RLY1
AC
GROUND
TRANSDUCER
GND
NC
C
NO
NC
C
NO
NC
C
NO
NC
C
NO
RLY3 RLY4 RLY5 RLY6
EXTRARELAYS OPTION
4-20mA
VELOCITY
VELOCITY
4-20mA
LEVEL
LEVEL
SENSOR
GND
+– +–
RCVR
GND
TMTR
GND
GRN
WHT
BLK

Page 6
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 .

Page 7
AVFM 5.0 Area-Velocity Flow Meter
CALIBRATION MENU
--Password----------
Password 0000
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time min
Temperature C
}
USG/m
Tot 20130.8 USG
Relays 1 2 3 4 5 6
0.000
--Message-----------
Data Log Logging
Log Used 0%
Maximum 52.20 USG/m
Sensor Good
Temperature 24C
--Status------------
Velocity 0.00ft/s
Level 0.00 ft
Tot 0.000USG
Signal Cutoff 5%
Signal Strength 0%
EC 0%
Relays 1 2 3 4 5 6
}
--Calibration-------
}
20mA Flo 10.000ft /s³
4mA Flo 0.000ft /s
20mA Vel 10.000 ft/s
4mA Vel 0.000 ft/s
20mA Level 12.000ft
4mA Level 0.000ft
Min Vel 0.000ft/s
Min Level 0.000in
Lvl Offset 0.000in
Damping 10%
LOE Time 30sec
³
--Relay Parameters--
Relay 1
Function Flow
On 1000 USG/min
Off 0.000 USG/min
}
--Special Functions-
Language English
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Negative Totals NO
Flo Direction Off
Cal Constant 1.000
Restore Defaults NO
New Password 0000
}
--Data Logging-------
Log Site ID 0
Mode Flow
Set Date Feb 18/2010
Set Time 11:27:40
Interval 10sec
Log Logging
}
--Configuration-----
Doppler 1.15
Logger 1.16T
Relays 2
Analog Out 3
}Utility Board 1.18.13
Sonar 1.06
--Channel Setup------
Type Round
Max Height 0.75ft
}
--Menu Selections----
Units / Mode
Calibration
Channel Setup
Relay Parameters
Data Logging
Special Functions
Simulation
Configuration
}
OPTIONAL FEATURES
--24 hr log------Flow
Date Feb. 12/2010
Total 50138 USG
Average 34.82 USG/m
Maximum 52.20 USG/m
Max Time 11:08:00
Minimum 0.000 USG/m
Min Time 9:15:00
}
--24 hr log-----Level
Date Feb. 12/2010
Average 0.000ft
Maximum 0.000ft
Max Time 11:08:00
Minimum 0.000ft
Min Time 9:15:00
}
--24 hr log--Velocity
Date Feb. 12/2010
Average 0.000ft/s
Maximum 0.000ft/s
Max Time 11:08:00
Minimum 0.000ft/s
Min Time 9:15:00
}
--Simulation--------
Test Actual
Level 0.00in
Velocity 10ft/s
Flow 1982.88USG/m
4-20mA Level 20.00
4-20mA Velocity20.00
4-20mA Flow 20.00
Relays 1 2
}

Page 8
AVFM 5.0 Area-Velocity Flow Meter
RUN
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 and will return to this screen after a
timeout if keys are not pressed in other menus.
MESSAGE
Press from the RUN display to view temperature measurement, status of the
data logger and error/warning messages provided by the instrument. The word
Message will appear on the RUN display if error messages are being
generated by the instrument. Refer to the manual section Error/Warning Messages
for a description. Press to return to the main display.
STATUS
Press from the RUN 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:
USG/m
Tot 20130.8 USG
Relays 1 2 3 4 5 6
0.000
--Message-----------
Data Log Logging
Log Used 0%
Maximum 52.20 USG/m
Sensor Good
Temperature 24C
--Status------------
Velocity 0.00ft/s
Level 0.00 ft
Tot 0.000USG
Signal Cutoff 5%
Signal Strength 0%
EC 0%
Relays123456
}

Page 9
AVFM 5.0 Area-Velocity Flow Meter
24 HR LOG (Data Logging option only)
Press from the RUN 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 Run 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.
--24 hr log------Flow
Date Feb. 12/2010
Total 50138 USG
Average 34.82 USG/m
Maximum 52.20 USG/m
Max Time 11:08:00
Minimum 0.000 USG/m
Min Time 9:15:00
}
--Password----------
Password 0000

Page 10
AVFM 5.0 Area-Velocity Flow Meter
UNITS/MODE
From Mode press the and then the or to select Flow,
Velocity or Level. 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.
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. barrels.
Temperature press then to select C or F.
Press or to return to the Menu Selections screen.
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time min
Temperature C
}
--Units/Mode--------
Mode Flow
Linear i
ft
m
mm
}n
--Units/Mode--------
Volume US
ft3
bbl
L
m3
IMG
IG
USMG
}G
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time se
day
hr
min
}c
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time min
Temperature C
F
}

Page 11
AVFM 5.0 Area-Velocity 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 Flo
[5V Flo] Press and enter the flow rate value for 20mA.
Note: Analogue output can be selected as 4-20mA or 0-5V in Special Functions.
4mA Flo
[0V Flo] Press and enter the flow rate value for 4mA.
20mA Vel
[5V Vel] Press and enter the velocity value for 20mA.
4mA Vel
[0V Vel] Press and enter the velocity value for 4mA.
20mA Level
[5V Level] Optional for QZ02L-A type transducer. Press and enter the
level value for 20mA.
4mA Level
[0V Level] Optional for QZ02L-A type transducer. Press and enter the
level value for 4mA.
MaxRg Only for PZ12LP/QZ02L-B type transducer. Press and enter
the zero water level (distance from the PZ12-LP sensor to the
zero water level).
MinRg Only for PZ12LP/QZ02L-B type transducer. Press and enter
the max level (distance from the PZ12-LP sensor to the max
water level).
Min Vel Press and enter a minimum velocity cutoff. Forward and
reverse velocities less than Min Vel will be forced to zero.
Min Level Optional for QZ02L-A type transducer. Press and enter a
minimum level cutoff. Level reading less than Min Level
will be forced to zero.
--Calibration-------
}
20mA Flo 10.000ft /s³
4mA Flo 0.000ft /s
20mA Vel 10.000ft/s
4mA Vel 0.000ft/s
20mA Level 12.000ft
4mA Level 0.000ft
Min Vel 0.000ft/s
Min Level 0.083ft
Lvl Offset 0.000ft
Damping 10%
LOE Time 30sec
³

Page 12
AVFM 5.0 Area-Velocity Flow Meter
Lvl Offset Optional for QZ02L-A type transducer. Press and enter an
offset to level measurement. Set to 0.00 when sensor mounted
on floor of channel. When sensor is mounted above the floor
of the channel enter the distance between channel floor and
bottom of sensor.
Note: 4mA is not affected by Lvl Offset settings. 4mA
is the bottom of the channel or pipe.
Damping Increase damping to stabilize readings under turbulent flow
readings or to reject spurious level readings. Decrease for
faster response to changes in flow.
LOE Time Press and enter the number of seconds allowed without
receiving an echo before the AVFM 5.0 displays ECHO
LOSS, and Control relays change state as calibrated under
Relay Parameters.
Press from the Calibration display to return to Menu Selections.
SENSOR
END VIEW
SIDE VIEW
TOP VIEW
SENSOR
U-SHAPE STAINLESS STEEL
18 GA. RECOMMENDED
HEIGHT AS REQUIRED
USE THE MB-QZ
STAINLESS STEEL
MOUNTING BRACKET
(SUPPLIED)
SENSOR ELEVATED
ABOVE FLOOR OF
PIPEOR CHANNEL
LEVEL
SENSOR

Page 13
AVFM 5.0 Area-Velocity Flow Meter
CHANNEL SETUP
Round Select Round for open pipes. Set Max Height to the
inner diameter of the pipe.
Rectangle Select Rectangle for rectangular channels. Enter the
channel width.
Trapezoid Select Trapezoid for trapezoidal shaped channels.
Specify the Width and Slope of the channel as shown
in the following illustration.
Egg Select Egg for Egg shaped channels. Enter the Max
Height of the channel.
--Channel Setup------
Type Round
Max Height 0.75ft
}
R
3R
R/2
2R
HEIGHT
=3R
TRAPEZOIDAL
CHANNEL
y
WIDTH
x
SLOPE = x
y

Page 14
AVFM 5.0 Area-Velocity Flow Meter
CUSTOM CHANNELS
Reset Data Old data MUST be removed before entering data for a new
channel. Press then press to Yes and press to clear
old data.
Max Height Enter the maximum height of the channel.
Division Divide the maximum height into equal increments (maximum
of 40) and enter this division value (example 1”, 1 cm etc.)
Increment # Enter the increment number if you want to edit a previous
entry or to skip entering widths for some levels (Note: The
custom channel will interpolate widths between entry points).
Width Enter the measured width of the channel at the level shown
(Note: To enter 0 width you must press and then to store
a 0 width data point).
Level Displays the level of the channel for each increment and width
entry.
Note:
Custom channel data in equal width increments with variable height
measurements must be converted to the format shown above using the “Channel
Data Translator” PC software.
--Custom Channel-----
Type Custom
Reset Data No
Max Height 0.75 ft
Division 0.05 ft
Increment #0
Width 0.000 ft
Level 0.000 ft
}
MAX
HEIGHT
10
9
8
7
6
5
4
3
2
1
0
WIDTH
INCREMENT#DIVISION
LEVEL

Page 15
AVFM 5.0 Area-Velocity Flow Meter
RELAY PARAMETERS
Relay Press and or to select a relay (2 relays are standard, 4
additional are optional).
Function Press or to select Off, Pulse, Flow,
Velocity or Level.
Flow On Position the cursor under the numerals and press or 
to set digits to the relay On set point.
Off set digits to the Off set point.
Pulse Press and set digits to the flow volume per relay pulse. Use
this feature for remote samplers, chlorinators or totalizers.
Minimum time between pulses is 2.25 seconds and pulse
duration is 350 milliseconds.
Return to Relay and enter settings for each relay.
Velocity On Position the cursor under the numerals and press or to set
digits to the relay On set point.
Off set digits to the Off set point.
Level On Position the cursor under the numerals and press or to set
digits to the relay On set point.
Off set digits to the Off set point.
LOE mode Specify the state of the relay for loss of echo
condition: Off, On or Hold.
Press to return to Menu Selections
--Relay Parameters--
Relay 1
Function Flow
On 1000 USG
Off 0.000 USG
}

Page 16
AVFM 5.0 Area-Velocity Flow Meter
DATA LOGGING (OPTIONAL)
Refer to Options section of this manual.
SPECIAL FUNCTIONS
Language Select English, French or Spanish
Analog Out Select 4-20mA or 0-5V mode for the analog output.
Backlight Select High, Medium or Low for continuous
backlight.
Select Key Hi/Lo for high backlight (for 1
minute) after a keypress and then Lo backlight until a
key is pressed again.
Select Key High, Med or Low for backlight
after a keypress and then backlight off until a key is
pressed again.
Reset Totalizer Press and select Yes to erase and restart the
totalizer at zero.
Negative Totals Select Yes to have reverse flow readings deducted
from the totalizer. Select No to totalize forward flow
only and ignore reverse flow.
Flo Direction Select On to enable flow direction measurement.
Select Off to disable flow direction measurement.
Select Invert to invert the sense of the flow
measurement.
Cal Constant Scales the velocity reading. Set to 1.000 for QZ02L
transducer.
Restore Defaults Select Yes and press to erase all user settings and
return the instrument to factory default settings.
New Password Select any number from 0000 to 9999 and press
. Default setting of 0000 will allow direct access to
the calibration menus. Setting of any password greater
than 0000 will require the password to be entered to
access the calibration menus.
Press to return to Menu Selections.
--Special Functions-
Language English
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Negative Totals NO
Flo Direction Off
Cal Constant 1.000
Restore Defaults NO
New Password 0000
}
--Special Functions-
Language English
Backlight Hig
Medium
Low
Key Hi/Lo
Key High
Key Med
Key Low
Off
}h

Page 17
AVFM 5.0 Area-Velocity Flow Meter
SIMULATION
Exercises the 4-20mA (0-5V) outputs, digital display and control relays.
Test Select Maximum and press to simulate maximum Flow, Level and
Velocity and to output 20mA (5V) to the analog channels.
Select Minimum and press to simulate minimum Flow, Level and
Velocity and to output 4mA (0V) to the analog channels.
To simulate intermediate Flow, Level and Velocity set Test to
Actual and then enter a value for the Level and Velocity.
The Flow calculation, analog outputs and control relays will respond to
the simulated values.
--Simulation--------
Test Actual
Level 0.00in
Velocity 10ft/s
Flow 1982.88USG/m
4-20mA Level 20.00
4-20mA Velocity20.00
4-20mA Flow 20.00
Relays 1 2
}

Page 18
AVFM 5.0 Area-Velocity Flow Meter
INSTALLATION - SENSOR LOCATION
1. Choose a sensor mounting location where silt or deposits are least likely to accumulate.
2. For best results flow should be evenly distributed across the channel and relatively free of turbulence.
(The AVFM 5.0 is very effective at averaging level and velocity readings in turbulent conditions, but
best accuracy and response time is achieved with evenly distributed flow.)
3. Avoid vertical drops, obstructions or elbows immediately up and downstream from the sensor. Locate
the QZ02L sensor at least 10 times maximum Head (level) and 10 times the channel width from these
flow disturbances.
QZ02L VELOCITY-LEVEL SENSOR MOUNTING
Mount the QZ02L sensor with the
stainless steel bracket and hardware
supplied. Ensure that the sensor is
parallel to the water surface (check with
a level). Mount with the tapered end of
the sensor pointing upstream and the
sensor cable pointing downstream.
Clip or tie wrap the sensor cable securely
to the pipe or channel wall.
Note: The mounting bracket is designed
to release the sensor if weeds or rags are
caught by the sensor.
FASTEN SENSOR
CABLE TO PIPE OR
CHANNEL WITH
METAL CLIPS OR
TIE WRAPS
SENSOR
END VIEW
MB-QZ
MOUNTING
BRACKET
TOP VIEW
FLOW
SIDE VIEW
FASTEN MOUNTING
BRACKET WITH A
SET SCREW
INSERT SENSOR INTO
MOUNTING BRACKET
QZ02L
VELOCITY/LEVEL SENSOR
FLOW
LEVEL
SENSOR

Page 19
AVFM 5.0 Area-Velocity Flow Meter
GOOD BAD
SENSOR
END VIEW
SENSOR
END VIEW
SENSOR
END VIEW
SENSOR
END VIEW
SENSOR
SENSOR
SENSOR
FLOW
SENSOR
FLOW