www.greyline.com
USER'S GUIDE
Installation & Operation
Instructions
Area-Velocity Flow Meter
Model AVFM 5.0
Manual Series A.2.2
Note: This page has been left blank intentionally.
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
Page 3
!
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
UNITS/MODE
B. Select
menu) to see a level reading.
Velocity
Level
mode (from
mode and stir the water to see a
velocity reading.
Page 4
CONNECTIONS
DATA LOGGER OPTION
AVFM 5.0 Area-Velocity Flow Meter
SENSOR
CORE
GND
GND
GND
GRN
TMTR
BLK
WHT
4-20mA
4-20mA
VELOCITY
LEVEL
––
++
RCVR
4-20mA
FLOW
RLY2
RLY1
–
+
NO
C
NC
NO
C
NC
EXTRA RELAYS OPTION
NC
RLY3
NC
C
NO
C
NO
RLY4
AC
LN
HEATER OPTION
AC
GND
USB HARNESS
CONNECTOR
NC
C
RLY5
NC
NO
RLY6
SENSOR
C
NO
GND
Page 5
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 6
CALIBRATION MENU
AVFM 5.0 Area-Velocity Flow Meter
Mode Flow}
Linear in
Volume USG
Time min
Temperature C
--Units/Mode--------
--Calibration-------
³
4mA Flo 0.000ft /s
20mA Flo 10.000ft /s³
}
20mA Vel 10.000 ft/s
4mA Vel 0.000 ft/s
20mA Level 12.000ft
4mA Level 0.000ft
Min Level 0.000in
Lvl Offset 0.000in
Min Vel 0.000ft/s
Damping 10%
Max Height 0.75ft
-- -----Channel Setup-
}Type Round
/minOn 1000 USG
/minOff 0.000 USG
Function Flow
Relay 1}
--Relay Parameters--
Calibration
Channel Setup
Relay Parameters
Data Logging
Special Functions
Simulation
Units / Mode}
--Menu Selections----
Password 0000
--Password----------
USG/m
Configuration
Mode Flow
Set Date May 27/2013
Set Time 11:27:40
Interval 10sec
Log Logging
Log Site ID 0}
--Data Logging-------
--Special Functions-
Language English}
Analog Out 4-20mA
Backlight High
6Relays
24Logger 1. T
Level 0.00in
Velocity 10ft/s
Reset Totalizer NO
Negative Totals NO
Flo Direction Off
Cal Constant 1.000
Restore Defaults NO
New Password 0000
Flow 1982.88USG/m
4-20mA Level 20.00
4-20mA Velocity20.00
4-20mA Flow 20.00
--Simulation--------
}Test Actual
Relays 1 2 3 4 5 6
Doppler 1.15
Analog Out 3
Sonar 1.11
Utility 1.25.02
--Configuration-----
}
dLog Use 0%
Data Log Logging
Sensor Good
Temperature 24C
--Message-----------
0.000ft/sAverage
Date Feb. 12/20} 10
--24 hr log--Velocity
50138 USGTotal
Date Feb. 12/20} 10
--24 hr log------Flow
0.000ftAverage
Date Feb. 12/20} 10
--24 hr log-----Level
0.000
Tot 20130.8 USG
Relays 1 2 3 4 5 6
9:15:00Min Time
11:08:00Max Time
0.000ft/sMaximum
0.000ft/sMinimum
9:15:00Min Time
11:08:00Max Time
52.20 USG/mMaximum
0.000 USG/mMinimum
34.82 USG/mAverage
0.000ftMaximum
0.000ftMinimum
9:15:00Min Time
11:08:00Max Time
Velocity 0.00ft/s
Flow 0.000 ft/s
Tot 0.000USG
Signal Cutoff 5%
Signal Strength 0%
EC 100%
--Status------------
}Level 0.00 ft
Relays 1 2 3 4 5 6
OPTIONAL FEATURES
Page 7
ICONS
AVFM 5.0 Area-Velocity Flow Meter
1. 2.
1.
1.
1.
2.
2. 3.
2.
3.
4.
Message waiting. Press .Ç
Data logging .off
Data logging .on
USB file download.
File download completed.
Download Error.
Echo OK.
1.
2.
3.
No Echo.
Echo OK (PZxx series level sensor option).
No Echo (PZxx series level sensor option).
Page 8
AVFM 5.0 Area-Velocity Flow Meter
USG/m
0.000
Tot 20130.8 USG
Relays 1 2 3 4 5 6
--Message----------Data Log Logging
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
dLog Use 0%
MAIN DISP LAY
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.
Displays the current totalizer reading.
Tot
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:
Page 9
AVFM 5.0 Area-Velocity Flow Meter
--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
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
Flow summaries. Press to scroll down one day or repeatedly to scroll to a
Level, Velocity and
specific date. Up to 365 days can be stored. Newest date will overwrite the oldest.
Press to return to the main display.
PASSWORD
Password (a number from 0000 to 9999) prevents unauthorized access
The
to the
Calibration menu.
From the Main display press to get to
password is 0000 and if it has not been changed press to proceed to the
Selections
screen.
Password. Factory default
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
Password.
Special Functions/New
Menu
Page 10
AVFM 5.0 Area-Velocity Flow Meter
--Units/Mode-------Mode Flow
}
Linear in
Volume USG
Time min
Temperature C
--Units/Mode--------
Mode Flow
Linear} in
--Units/Mode--------
Mode
Linear
}Volume USG
ft3
bbl
IMG
USMG
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time} sec
day
min
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time min
Temperature} C
ft
mm
m3
IG
hr
UNITS/MODE
From
Velocity or Level. Flow mode displays the flow rate in engineering
Mode press the and then the or to select Flow,
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.
m
Press the key to move the
save your selections.
symbol to each subsequent menu item and the to
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.
L
F
Page 11
AVFM 5.0 Area-Velocity Flow Meter
--Calibration-------
20mA Flo 10.000ft /s³
}
4mA Flo 0.000ft /s³
20mA Vel 10.000 ft/s
4mA Vel 0.000 ft/s
20mA Level 12.000ft
4mA Level 0.000ft
Min Level 0.000in
Lvl Offset 0.000in
Min Vel 0.000ft/s
Damping 10%
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]
20mA Vel
[5V Vel]
4mA Vel
[0V Vel]
20mA Level
[5V Level]
Press and enter the flow rate value for 4mA.
Press and enter the velocity value for 20mA.
Press and enter the velocity value for 4mA.
Optional for QZ02L-A type sensor. Press and enter the level
value for 20mA.
4mA Level
[0V Level]
Optional for QZ02L-A type sensor. Press and enter the level
value for 4mA.
MaxRg
Only for PZ12LP/QZ02L-B type sensor. 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 sensor. Press and enter the
max level (distance from the PZ12-LP sensor to the max water
level).
Min Level
Optional for QZ02L-A type sensor. Press and enter a
minimum level cutoff. Level reading less than
Min Level
will be forced to zero.
Page 12
AVFM 5.0 Area-Velocity Flow Meter
Lvl Offset
Optional for QZ02L-A type sensor. 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. Maximum offset is ± 36” (914 mm).
Note: 4mA is not affected by
is the bottom of the channel or pipe.
LEVEL
SENSOR
TOP VIEW
SENSOR
SIDE VIEW
USE THE MB-QZ
STAINLESS STEEL
MOUNTING BRACKET
(SUPPLIED)
Min Vel
Press and enter a minimum velocity cutoff. Forward and
reverse velocities less than
Min Vel will be forced to zero.
Damping
Increase damping to stabilize readings under turbulent flow
readings or to reject spurious level readings. Decrease for
faster response to changes in flow.
Press from the
Calibration display to return to Menu Selections.
Lvl Offset settings. 4mA
SENSOR ELEVATED
ABOVE FLOOR OF
PIPE OR CHANNEL
SENSOR
U-SHAPE STAINLESS STEEL
18 GA. RECOMMENDED
HEIGHT AS REQUIRED
END VIEW
Page 13
AVFM 5.0 Area-Velocity Flow Meter
--Channel Setup-----Type Round
}
Max Height 0.75ft
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
in the following illustration.
TRAPEZOIDAL
Egg Select Egg for Egg shaped channels. Enter the Max
Height
of the channel.
Width and Slope of the channel as shown
SLOPE = x
y
CHANNEL
WIDTH
y
x
HEIGHT
= 3R
Page 14
R
2R
3R
R/2
AVFM 5.0 Area-Velocity Flow Meter
--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
CUSTOM CHANNELS
Reset Data Old data MUST be removed before entering data for a new
channel. Press then press to
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.
MAX
HEIGHT
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.
WIDTH
Yes and press to clear
INCREMENT #DIVISION
10
9
8
7
6
5
4
3
2
1
0
LEVEL
Page 15
AVFM 5.0 Area-Velocity Flow Meter
--Relay Parameters-Relay 1
}
Function Flow
On 1000 USG
Off 0.000 USG
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
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
Velocity
On
Position the cursor under the numerals and press or to set
digits to the relay
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
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
On set point.
Relay and enter settings for each relay.
On set point.
On set point.
Menu Selections
Page 16
AVFM 5.0 Area-Velocity Flow Meter
--Special FunctionsLanguage 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 High
Medium
Low
Key Hi/Lo
Key High
Key Med
Key Low
Off
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
minute) after a keypress and then
key is pressed again.
Select
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
only and ignore reverse flow.
Flo Direction Select On to enable flow direction measurement.
Select
Select
measurement.
Cal Constant Scales the velocity reading. Set to 1.000 for QZ02L
sensor.
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.
Key Hi/Lo for high backlight (for 1
Lo backlight until a
Key High, Med or Low for backlight
No to totalize forward flow
Off to disable flow direction measurement.
Invert to invert the sense of the flow
Page 17
AVFM 5.0 Area-Velocity Flow Meter
--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
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 an intermediate Flow, Level and Velocity set
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.
Test to
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.
4. The QZ02L submerged level-velocity sensor requires a minimum water level of 1 in. (25.4 mm).
QZ02L VELOCITY-LEVEL SENSOR MOUNTING
Mount the QZ02L sensor with the
stainless steel bracket and hardware
0.2"
(5 mm)
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.
MB-QZ
MOUNTING
BRACKET
FASTEN MOUNTING
BRACKET WITH A
SET SCREW
FASTEN SENSOR
CABLE TO PIPE OR
CHANNEL WITH
METAL CLIPS OR
TIE WRAPS
TOP VIEW
SIDE VIEW
VELOCITY/LEVEL SENSOR
LEVEL
SENSOR
INSERT SENSOR INTO
MOUNTING BRACKET
END VIEW
SENSOR
QZ02L
FLOW
FLOW
Page 19
AVFM 5.0 Area-Velocity Flow Meter
GOOD
END VIEW
SENSOR
SENSOR
BAD
END VIEW
SENSOR
SENSOR
FLOW
SENSOR
SENSOR
END VIEW
SENSOR
SENSOR
END VIEW
FLOW
Page 20
AVFM 5.0 Area-Velocity Flow Meter
OPTIONAL PIPE BAND MOUNTING WITH QZ02L SENSOR
Install the stainless steel pipe band with the sensor mounting
bracket at the invert (bottom) of the pipe. Ensure that the
sensor bracket is parallel to the water surface (check with a
level). Mount so the tapered end of the sensor will point
upstream and the sensor cable will point downstream. (Turn
the ¼” adjustment nut clockwise to expand the bracket and secure to the pipe wall by friction fit.)
Insert the sensor into the mounting bracket and tie-wrap the sensor cable securely to the pipe band using
the holes provided.
BAND
ADJUSTMENT JACK
VSJ PIPE MOUNTING BAND
DETAIL
BAND ADJUSTMENT
SENSOR MOUNTING
BRACKET
JACK
OPTIONAL QZ02L-DP VELOCITY SENSOR MOUNTING
Mount the velocity sensor at or near the bottom of the channel or pipe in a position where it will be
continuously submerged. The QZ02L-DP velocity sensor does not have to be parallel to the water
surface. Position where silt or solids will not build-up on the sensor.
Page 21
AVFM 5.0 Area-Velocity Flow Meter
OPTIONAL PZ12-LP LEVEL SENSOR MOUNTING
Mount the PZ12-LP non-contacting ultrasonic level sensor in an unobstructed position at least 8” (203.2
mm) above the high water level. Install the stainless steel mounting bracket in a horizontal position
(check with a level) and then insert the PZ12-LP sensor.
PZ12-LP SENSOR
MB12 - MOUNTING BRACKET
QZ02L-DP VELOCITY SENSOR
PZ12-LP MANHOLE MOUNTING
PZ12-LP
WATER
PZ12-LP PIPE MOUNTING
PZ12-LP
WATER
Page 22
AVFM 5.0 Area-Velocity Flow Meter
ENCLOSURE INSTALLATION
Locate the enclosure within 20 ft (6 m) of the sensor (up to 500 ft -150 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.
Avoid mounting the enclosure in direct sunlight to protect the electronics from damage due to
overheating and condensate. In high humidity atmospheres, or where temperatures fall below freezing,
Option TH Enclosure Heater and Thermostat is recommended. Seal conduit entries to prevent moisture
from entering enclosure.
NEMA4X (IP66) WITH CLEAR COVER
1. Open hinged enclosure cover.
2. Insert #8 screws (supplied) through the four enclosure mounting holes
to secure the enclosure to the wall or mounting stand.
Additional conduit holes can be cut in the bottom of the enclosure with a
hole saw or Greenlee-type hole cutter.
DO NOT make conduit/wiring entries into the top of the enclosure.
Note: This non-metallic enclosure does not automatically provide
grounding between conduit connections. Grounding must be provided as
part of the installation. Ground in accordance with the requirements of the
National Electrical Code. System grounding is provided by connecting
grounding wires from all conduit entries to the steel mounting plate or
another point which provides continuity.
CLEANING
Cleaning is not required as a part of normal maintenance.
COVER
ENCLOSURE
MOUNTING
HOLES
ENCLOSURE
END VIEW
Page 23
FUSE REPLACEMENT
1. Turn OFF power.
2. Loosen cover screw and open.
3. Remove power module.
4. Locate fuse on Power Board.
5. Replace fuse with 2 AMP/ 250V, 5 x 20mm fuse.
6. Reinstall power module into chassis.
AVFM 5.0 Area-Velocity Flow Meter
Fuse
POWER MODULE
Page 24
AVFM 5.0 Area-Velocity Flow Meter
FIELD TROUBLESHOOTING
The AVFM 5.0 uses an ultrasonic level sensor to determine channel AREA and an ultrasonic Doppler
sensor to measure flow VELOCITY.
The QZ02L sensor combines both sensors in one housing.
An optional configuration uses the PZ12-LP “down-looking” level sensor and a QZ02L-DP velocity
sensor.
To troubleshoot the AVFM 5.0, verify correct operation of LEVEL and VELOCITY measurements
separately.
Note: Selecting “Defaults” in the SPECIAL FUNCTION menu will return the instrument to
“as-shipped” factory settings.
LEVEL (QZ02L SENSOR)
SYMPTOMS FAULTS SOLUTIONS
EC bar graph at zero - very turbulent flow - Increase LOE time (SPECIAL
FUNCTION
- very aerated flow - relocate sensor or use PZ12-LP
- sensor not level - level sensor with “Bullseye” level
- sediment/dirt/grease build-up on
sensor
- Level display reads 1.0 inches
VELOCITY (QZ02L SENSOR)
SYMPTOMS
- No velocity reading - Grease/sediment on sensor
FAULTS SOLUTIONS
- Level at or less than 1.0 inches
- Improper hook-up
- clean sensor with liquid soap
- Clean sensor with detergent
- Check sensor connections
)
Page 25
AVFM 5.0 Area-Velocity Flow Meter
SENSOR CABLE RESISTANCE TEST
Unplug the green sensor terminal from the Doppler board and connect the sensor wires as shown. With a
multimeter, perform resistance checks for each set of wires. One single loose terminal may cause false
readings.
Test across shield and core of each wire: TMTR (black/white) and RCVR (black). Resistance should be
approximately 82.5K ohms for any cable length. High readings indicate an open circuit and low readings
indicate a short or partial short in the sensor cable.
Page 26
AVFM 5.0 Area-Velocity Flow Meter
APPLICATIONS HOTLINE
For applications assistance, advice or information on any Greyline Instrument contact your Sales
Representative, write to Greyline or phone the Applications Hotline below:
United States: Tel: 315-788-9500 Fax: 315-764-0419
Canada: Tel: 613-938-8956 Fax: 613-938-4857
Toll Free: 888-473-9546
Email: info@greyline.com
Web Site: www.greyline.com
Greyline Instruments Inc.
Canada USA:
16456 Sixsmith Drive 105 Water Street
Long Sault, Ont. K0C 1P0 Massena, NY 13662
Page 27
AVFM 5.0 Area-Velocity Flow Meter
PRODUCT RETURN PROCEDURE
Instruments may be returned to Greyline for service or warranty repair.
1 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.
When you contact Greyline please have the following information available:
1. Model number / Software Version
2. Serial number
3. Date of Purchase
4. Reason for return (description of fault or modification required)
5. Your name, company name, address and phone number
2 Clean the Sensor/Product -
Important: unclean products will not be serviced and will be returned to the sender at their expense.
1. Rinse sensor and cable to remove debris.
2. If the sensor has been exposed to sewage, immerse both sensor and cable in a solution of 1 part
household bleach (Javex, Clorox etc.) to 20 parts water for 5 minutes. Important: do not immerse open
end of sensor cable.
3. Dry with paper towels and pack sensor and cable in a sealed plastic bag.
4. Wipe the outside of the enclosure to remove dirt or deposits.
5. Return to Greyline for service.
3 Ship to Greyline -
After obtaining an RMA number please ship the product to the appropriate address below:
Canadian and International USA
Customers: Customers:
Greyline Instruments Inc. Greyline Instruments Inc.
16456 Sixsmith Drive 204 150th Avenue
Long Sault, Ont. K0C 1P0 Madeira Beach, FL 33708
RMA# RMA#
Page 28
AVFM 5.0 Area-Velocity Flow Meter
AREA-VELOCITY FLOW DATA SHEET
Greyline Instruments Inc.
16456 Sixsmith Dr., Long Sault, Ont. K0C 1P0
Tel: 613-938-8956 / Fax: 613-938-4857
105 Water Street, Massena NY 13662
Tel: 315-788-9500 / Fax: 315-764-0419
Contact: ________________________________ Title/Dept.: _________________________
Company: ___________________________________ Project: _________________________
Address: ____________________________________________________________________
Tel: _____________________________________ Fax: _________________________
Please complete and return this form to Greyline. It is
important. We use this information to check our database
for performance of Greyline flow meters in similar
applications, and to provide advice and recommendations
to you. Thanks for your cooperation.
SENSOR
Model/Type: _____________________________ Cable Length: _________________________
Elec. Class: _____________________________ Type of Pump: _________________________
Distance from nearest Pump, Controlling Valve, Orifice or open Discharge: ___________________
INSTRUMENT
Calibrated Range
Operating Temp.: ___________________________ Alarm: _________________________
Enclosure Class: __________________________ Pulse/Unit: _________________________
SERVICE CONDITIONS
Pipe Mat'l: _______________________________ % Solids: _________________________
Oper. Flow: _________________________________ Vibration: _________________________
Max. Flow: ____________________________ Max. Pressure: _________________________
Min. Flow: _____________________________ Max. Temp: _________________________
:
:
Model/Type: _________________________ Power Input: _________________________
: ___________________________ Indication: _________________________
Elec. Class: _____________________________ Output: _________________________
:
Pipe ID: _______________________________
Fluid: __________________________ Material Build-up: _________________________
q Vertical q Horizontal
/ Sketch Pipe Run:
Notes
By: _______________________________________________ Date: ___________________
Page 29
LIMITED WARRANTY
_____________________________________
Greyline Instruments warrants, to the original purchaser, its
products to be free from defects in material and workmanship for a
period of one year from date of invoice. 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.
AVFM 5.0 Area-Velocity Flow Meter
If a product manufactured by Greyline should prove defective
within the first year, return it freight prepaid to Greyline
Instruments along with a copy of your invoice.
This warranty does not cover damages due to improper installation
or handling, acts of nature, or unauthorized service. Modifications
to or tampering with any part shall void this warranty. This
warranty does not cover any equipment used in connection with the
product or consequential damages due to a defect in the product.
All implied warranties are limited to the duration of this warranty.
This is the complete warranty by Greyline and no other warranty is
valid against Greyline. Some states do not allow limitations on how
long an implied warranty lasts or limitation of incidental or
consequential damages, so the above limitations or exclusions may
not apply to you.
This warranty gives you specific legal rights, and you may also
have other rights which vary from state to state.
Greyline Instruments Inc.
Page 30
AVFM 5.0 Area-Velocity Flow Meter
APPENDIX A – OPTIONS
EXTRA SENSOR CABLE
(OPTION VXC)
Each Greyline AVFM 5.0 flow meter includes 25 ft. (7.6 m), 50 ft. (15 m) or 100 ft. (30 m) tri-coaxial
sensor cable. This cable is shielded from electrical interference and is watertight with a polyurethane
jacket. Additional cable and Cable Junction Box (Option JB2X or JB4X) may be ordered with the Flow
Meter, or the cable may be spliced and extended up to 500 ft (152 m) total length as required during
installation. No adjustment is required when the sensor cable is extended or shortened. Use only
Greyline tri-coaxial VXC shielded cable, or run three RG174U coaxial cables in a metal conduit.
Extended sensor cable can be installed in conduit for mechanical protection. Recommended installation
with a junction box is illustrated below:
AVFM
TO GREYLINE SENSOR
SHIELDED COAXIAL PAIR
BLK
BLK/GRN
BLK/WHT
GND
BLK
BLK/GRN
BLK/WHT
EXTENDED SENSOR CABLE
TO ELECTRONICS ENCLOSURE
- MAX. TOTAL CABLE LENGTH
500 ft (152m) SHIELDED
COAXIAL PAIR
- CONDUIT RECOMMENDED FOR
MECHANICAL PROTECTION
Downward AVFM
TO ULTRASONIC
LEVEL SENSOR
RG62AU COAXIAL
TO VELOCITY SENSOR
SHIELDED COAXIAL PAIR
GND
CORE
SHIELD
BLK/GRN
BLK/WHT
GND
CORE
SHIELD
BLK/GRN
BLK/WHT
GND
GND
EXTENDED SENSOR CABLE TO
ELECTRONICS ENCLOSURE
- MAX. TOTAL CABLE LENGTH
500 ft (152m) RG62AU coaxial
- CONDUIT RECOMMENDED FOR
MECHANICAL PROTECTION
EXTENDED SENSOR CABLE
TO ELECTRONICS ENCLOSURE
- MAX.TOTALCABLE LENGTH
500 ft (152m) SHIELDED
COAXIAL PAIR
- CONDUIT RECOMMENDED FOR
MECHANICAL PROTECTION
Page 31
AVFM 5.0 Area-Velocity Flow Meter
COAXIAL CABLE PREPARATION
VXC Doppler sensor cable can be cut and spliced up to a maximum length of 500 ft (152 m). Cable ends
must be prepared as illustrated below.
GOOD
BLACK
(CONDUCTIVE)
SLEEVE
HASBEEN
REMOVED
BAD
BLACK
(CONDUCTIVE)
SLEEVE
HAS NOT BEEN
REMOVED
Page 32
AVFM 5.0 Area-Velocity Flow Meter
JUNCTION BOX - OPTION JB2X & JB4X
NEMA4X (IP66) polycarbonate Junction Box with terminal strips is available from Greyline
Instruments. Includes compression fittings for watertight coaxial cable entries.
Page 33
SS PIPE MOUNTING BAND – OPTION VSJ
Use optionalVSJ stainless steel Pipe Mounting Bands
for easy Sensor installation inround pipes.
Each Pipe Band includes:
!
Band Adjustment Jack allowing ±0.5” (13 mm) adjustment from
DETAIL
BAND ADJUSTMENT
JACK
BAND
ADJUSTMENT JACK
VSJ PIPEMOUNTINGBAND
SENSOR MOUNTING
BRACKET
the nominal band size
!
Stainless steel bracket for Sensor mounting
!
Pre-drilled for tie wraps (included) to secure Sensor cable
AVFM 5.0 Area-Velocity Flow Meter
CODE BAND SIZE
VSJ6 6”/150 mm IDpipes
VSJ8 8”/200 mm IDpipes
VSJ10 10”/250 mm IDpipes
VSJ12 12”/300 mm IDpipes
VSJ14 14”/350 mm IDpipes
VSJ15 15”/375 mm IDpipes
VSJ16 16”/400 mm IDpipes
VSJ18 18”/450 mm IDpipes
VSJ20 20”/500 mm IDpipes
VSJ24 24”
VSJ30 30”/750 mm IDpipes
/600 mm IDpipes
END
BRACKET
VSJHALF-PIPE
MOUNTING BAND
ADJUSTMENT
FLOW
SENSOR MOUNTING
BRACKET
JACK
Mounting Instructions:
Install the stainless steel pipe band with the
sensor mountingbracket at the invert (bottom)
of the pipe. Ensure that the sensor bracket is
parallel to the water surface (check with a
level). Mount so the tapered end of the sensor
will point upstream and the sensor cablewill
point downstream. Turn the ¼” adjusti
clockwise to expand the bracket and secure to
the pipe wall by friction fit.
Insert the sensor into the mountingbracket and
tie wrap the sensor cable securely to the
stainless steel pipe band.
ng nut
VSJ32-40 32-40” / 800-1000 mm IDpipes
VSJ42-54 42-54” / 1100-1375 mm IDpipes
VSJ56-72 56-72” / 1400-1800 mm IDpipes
FASTEN SENSOR
CABLE TOPIPE OR
CHANNEL WITH
TIE WRAPS
END VIEW
SENSOR
Page 34
AVFM 5.0 Area-Velocity Flow Meter
SENSOR INTRINSIC SAFETY
When connected through Intrinsic Safety Barriers, the Greyline Sensor Model QZ02L and PZ series are
CSA certified for installation in a hazardous location rated:
Class I, Groups C,D
Class II, Groups E,F,G
Class III
Intrinsic Safety Barriers may be ordered with the Greyline instrument and are supplied mounted in the
Greyline instrument enclosure. Replacement barrier fuses (Part No. ISB- 011239) may be purchased
separately. The instrument enclosure containing the Intrinsic Safety Barriers must be installed in a nonhazardous location.
Page 35
GN3SPEC-ISB-02
The intrinsic safety barrier
assemblies installed in the
AVFM 5.0 limit the voltage
and current supplied to the
transducers to the values
listed under ‘Barrier
Specifications’. To safely
install Greyline transducer(s)
certified for use in hazardous
locations you must refer to
the installation
drawings/specifications of
the certified transducer(s).
AVFM 5.0 Area-Velocity Flow Meter
2
2
1
s)
2
1
1
s)
s)
BARRIER SPECIFICATIONS
STAHL BARRIER
System Parameters
AVFM 5.0
Installed in
Non-Hazardous Location
STAHL 9001/02-093-390-101
3
TRANSDUCER
GND
TRANSDUCER
CONNECTIONS
Entity Parameters
(rated 9.6V, 27 ohm
(rated 9.6V, 27 ohm
STAHL 9001/02-093-390-101
4
4
3
(rated 9.6V, 27 ohm
STAHL 9001/02-093-390-101
4
3
9001/02-093-390-101
9.6V, 27 ohms
m
U
250V
Page 36
V
0C
9.3V
I
SC
390mA
P
0
906.8mW
C
a
4.1µF
L
a
0.16mH
AVFM 5.0 Area-Velocity 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).
Power consumption is 15 Watts.
TO AC POWER SUPPLY
ENCLOSURE SUNSCREEN - Option SCR
Do not mount instrument electronics in direct sunlight. Overheating will reduce the life of electronic
components and condensate may form during the heat/cool cycles and cause electrical shorts.
11" / 280 mm
Note:
Exposure to direct sunlight can cause
overheating and moisture condensation
which will reduce the operating lifeof
electronics.
Protect Instruments from direct sunlight
with this iridite finished aluminumsun
screen (Greyline Option SCR).
eal conduit entries with caulking
S
compound to further reduce moisture
condensation.
11"
280 mm
5"
127 mm
Page 37
AVFM 5.0 Area-Velocity Flow Meter
POWER INPUT OPTION
9-32VDC
AVFM 5.0 Flow Meters may be ordered factory-configured for 9-32VDC power input.
CONNECTIONS:
POWER INPUT: Connect 9-32VDC to the + and - terminals. The Power Input GND terminal must be
connected to the nearest Ground pole. A 1-amp fuse in line is recommended.
4-20mA
FLOW
RLY2
RLY1
NO
C
NC
NO
C
NC
SENSOR
CORE
GND
GND
GND
TMTR
4-20mA
LEVEL
NO
RCVR
GRN
BLK
WHT
DATA LOGGER OPTION
4-20mA
VELOCITY
––
++
EXTRA RELAYS OPTION
NC
C
NC
NO
C
NC
NO
C
NC
NO
C
RLY3
DC
+–
–
+
DC
GND
RLY5
RLY4
USB HARNESS
CONNECTOR
RLY6
SENSOR
GND
Page 38
AVFM 5.0 Area-Velocity Flow Meter
--Data Logging------Log Site ID 00
}
Mode Flow
Set Date Feb 18/2008
Set Time 11:27:40
Interval 10sec
Log Stop
Velocity
Mar 19/2009
12:28:41
99
60min
30min
15min
10min
5min
2min
1min
30sec
Start
Delete
DATA LOGGING (Optional)
Setup
Select
Data Logging from Menu Selections.
Log Site ID Enter a number from 00 to 99. The site ID will become
part of the downloaded file name to help distinguish
downloads from different instruments.
Press to store the setting.
Mode Select Velocity, LVT, Level or Flow.
Press to store the setting.
Set Date Press or to scroll and select Month, Day and Year.
Press to store the setting.
Set Time Press or to select the current time in Hours, Minutes and
Seconds.
Press to store the setting.
Interval Press or to select the logging interval.
Press to store the setting.
Log Stop, Start or Delete the log file.
Press or to
Press or to
Note:
You MUST delete old log and start a new log AFTER having set
changes to
Log Site ID, Mode and/or Interval for those
changes to be applied to the log file.
View 24-hr formatted Reports on the AVFM 5.0 display. Press from the MAIN
display to view a formatted flow report from instruments with a built-in data
logger. Press to pan through
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.
Page 39
Delete and to delete the log file.
Start and to start the logger.
Level, Velocity and Flow
AVFM 5.0 Area-Velocity Flow Meter
RETRIEVE LOG FILE
Plug a USB Flash Memory Drive (not supplied by Greyline) into the USB output
cable from the instrument. The instrument display will show the USB file
download icon until the log file is transferred to the memory card and then display
file download completed icon. The USB flash drive may be removed.
Download file names will appear in this format:
AVFM__00A.LOG
MODEL TAG DOWNLOAD
Tag is set according to the
Logging menu.
Download letter will be A for the first download from an instrument. B for the
second, then C etc. At the letter Z a - character will appear indicating that the
maximum number of downloads for that instrument are on the USB flash drive.
Older files can be erased or moved from the flash memory drive or a new memory
drive can be used.
OPENING LOG FILES
Install Greyline Logger on your PC or laptop. Refer to the Help menu in the
program for detailed instructions.
Select File/Open/Instrument Log (.log) to open the log file from your USB flash
drive.
Log Site ID entered in the instrument Data
Page 40
AVFM 5.0 Area-Velocity Flow Meter
SPECIFICATIONS
Electronics Enclosure: NEMA4X (IP 66), watertight and dust tight, polycarbonate with clear,
shatterproof hinged Lexan cover
Accuracy: Level: ± 0.25% of Range Velocity: ± 2% of Reading Repeatability: 0.1%
F.S., Linearity: 0.1%F.S.
Display: White, backlit matrix – displays flow rate, totalizer, relay states,
operating mode and calibration menu
Programming: Built-in 5-key calibrator with English, French or Spanish language
selection
Power Input: 100-240VAC, 50/60 Hz, (30 W max.)
Optional: 9-32VDC (9 W max.)
Output: 2 Isolated 4-20mA, 1000 ohm load maximum or 2 Isolated 0-5V
Control Relay: Qty 2, rated 5 ampere SPDT
Temperature Compensation: Automatic, temperature probe built in to level Sensor
Electrical Surge Protection: Sensor, 4-20mA, AC power input
Environmental Conditions: Relative humidity up to 80% -23 to 60°C ambient temperature,
maximum 5000 m altitude, pollution degree 4, Installation Category II.
Optional Enclosure Heater recommended for condensation protection
below 32°F (-1°C)
7.4 / 188 mm"
6.46 / 164 mm"
AVFM 5.0
Area-Velocity
Flow Meter
CONDUIT ENTRY
10.94"/278 mm
5.12/130mm"
10/254 mm"
SIDE VIEW
LOCATION
Page 41
AVFM 5.0 Area-Velocity Flow Meter
Velocity/Level Sensor QZ02L
Minimum Velocity: 0.1 ft/sec (0.03 m/sec)
Maximum Velocity: 20 ft/sec (6.2 m/sec) [reverse flow to -5 ft/sec (-1.5 m/sec)]
Minimum Head: 1 in. (25.4 mm)
Maximum Head: 16 ft. (4.88 m)
Operating Temperature: 5 to 150°F (-15 TO 65°C)
Exposed Materials: PVC, epoxy resin, polyurethane, ultem
Sensor Cable: 25 ft. (7.6 m) submersible polyurethane jacket, shielded, 3 coaxial
Hazardous Rating: CSA rated Intrinsically Safe Class I, Groups C,D, Class II, Groups E,F,G
with optional Intrinsic Safety Barrier
MB-QZ - MOUNTING BRACKET QZ02L VELOCITY/LEVEL SENSOR
1.50
1.62"
LEVEL
41.2mm
SENSOR
"
38.1 mm
25 ft (7.6 m)
Sensor Cable
3.00"
0.56"
76.2mm
14.2mm
SIDE VIEW
5.00”
127 mm
0.50"
0.63"
12.7 mm
16 mm
Page 42
AVFM 5.0 Area-Velocity Flow Meter
Optional (Velocity only) Sensor QZ02L-DP
Minimum Velocity: 0.1 ft/sec (0.03 m/sec)
Maximum Velocity: 20 ft/sec (6.2 m/sec) [reverse flow to -5 ft/sec (-1.5 m/sec)]
Operating Temperature: 5 to 150°F (-15 to 65°C)
Exposed Materials: PVC, epoxy resin, polyurethane, ultem
Sensor Cable: 25 ft (7.6 m) submersible polyurethane jacket, shielded, 3-coaxial
Hazardous Rating: CSA rated Intrinsically Safe Class I, Groups C,D, Class II, Groups
E,F,G, with optional Intrinsic Safety Barrier
MB-QZ - MOUNTING BRACKET
1.62"
41.2 mm
3.00"
76.2 mm
0.56"
14.2 mm
25 ft (7.6 m)
Sensor Cable
QZ02L-DP VELOCITY SENSOR
5.00”
SIDE VIEW
127 mm
0.50"
12.7 mm
1.50
38.1 mm
0.63"
16 mm
"
Optional Sensor PZ12-LP
Maximum Range: 12 ft (3.66 m)
Minimum Range: 8" (203.2 mm)
Beam Angle: 8°
Operating Temperature: -40 to 150°F (-40 to 65°C)
Exposed Materials: Sensor - PVC, Mounting Bracket - 316 Stainless
Hazardous Rating: CSA rated Intrinsically S afe Class I, Groups
C,D,Class II, Groups E,F,G with optional Intrinsic Safety Barrier
MB12 - MOUNTING BRACKET PZ12-LP ULTRASONIC SENSOR
25 ft (7.6 m)
Coaxial Cable
3.12"
79.2 mm
0.218 DIA
(5.5 mm)
3.00"
76.2 mm
FACE
VIEW
0.25 DIA
(6.35 mm)
4.00"
101.6 mm
3.00"
76.2 mm
SIDE
0.68"
17.3 mm
VIEW
0.62"
15.75mm
Page 43
Dual Non-Contacting Sensor Configuration
AVFM 5.0 Area-Velocity Flow Meter
PZ Non-Contacting
Ultrasonic
Level Sensor
FLOW
SE4 Clamp-on
Velocity Sensor
Page 44
CONNECTIONS
Dual Sensor Configuration
AVFM 5.0 Area-Velocity Flow Meter
CORE
GND
SENSOR
4-20mA
FLOW
RLY2
RLY1
–
+
NO
C
NC
NO
C
NC
DATA LOGGER OPTION
EXTRA RELAYS OPTION
NC
RLY3
NC
C
NO
C
NO
RLY4
AC
LN
HEATER OPTION
AC
GND
USB HARNESS
CONNECTOR
NC
RLY5
C
NO
VELOCITY
SENSOR
4-20mA
4-20mA
LEVEL
––
++
NC
C
NO
RLY6
GND
GND
RCVR
BLK
PZxx
GND
Level
TMTR
BLK
WHT
SE-4
DOPPLER SENSOR
Page 45
AVFM 5.0 Area-Velocity Flow Meter
--Calibration-------
20mA Flo 10.000ft /s³
}
4mA Flo 0.000ft /s³
20mA Vel 10.000 ft/s
4mA Vel 0.000 ft/s
20mA Level 12.000ft
4mA Level 0.000ft
Min Level 0.000in
Lvl Offset 0.000in
Min Vel 0.000ft/s
Damping 10%
CALIBRATION
Non Contacting Level Sensor Configuration
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]
Note
: Analogue output can be selected as 4-20mA or 0-5V in Special Functions.
Press and enter the flow rate value for 20mA.
4mA Flo
[0V Flo]
20mA Vel
[5V Vel]
4mA Vel
[0V Vel]
20mA Level
[5V Level]
Press and enter the flow rate value for 4mA.
Press and enter the velocity value for 20mA.
Press and enter the velocity value for 4mA.
Optional for QZ02L-A type sensor. Press and enter the level
value for 20mA.
4mA Level
[0V Level]
Optional for QZ02L-A type sensor. Press and enter the level
value for 4mA.
MaxRg
Only for PZxx type sensor. Press and enter the zero water
level (distance from the PZxx sensor to the zero water level).
Page 46
AVFM 5.0 Area-Velocity Flow Meter
MinRg
Only for PZxx type sensor. Press and enter the max level
(distance from the PZxx sensor to the max water level).
SUNSCREEN
SENSOR
MinRg > dead band
Range
MaxRg
Min Vel
Press and enter a minimum velocity cutoff. Forward and
reverse velocities less than
Damping
Increase damping to stabilize readings under turbulent flow
readings or to reject spurious level readings. Decrease for
faster response to changes in flow.
Press from the
Calibration display to return to Menu Selections.
Min Vel will be forced to zero.
Page 47
AVFM 5.0 Area-Velocity Flow Meter
PZxx FLANGE SENSOR MOUNTING METHODS IN ROUND PIPES
Notes:
1. Use the ¾” NPT “Isolation
Sunscreen
Coupling” supplied and hand
tighten only. Do not clamp sensor
body or stem.
Min Range
PZ15 8" (203.2mm)³
PZ 34 16" (406.4mm)³
2. Do not mount sensor or cover
flange in direct sunlight.
Max Range
3. Extend sensor cable up to 500 ft
(150 m) with RG62AU coaxial
only and junction box.
4. Standpipe diameter as large as
possible, typical standpipe: 6” /
150 mm diameter, 12” – 16” (300
– 500 mm) height.
Use a Sensor Sunscreen (option PZS) when sensor is installed indirect sunlight.
Level Sensor
SUNSCREEN
254 mm
COAXIAL CABLE
CONDUIT
SUNSCREEN
ISOLATION COUPLING
SPACER
FLANGE
ULTRASONIC
LEVEL SENSOR
Page 48
3/4" CONDUIT
SUNSCREEN
ISOLATION COUPLING
SPACER
FLANGE
NON-CONTACTING
ULTRASONIC
LEVEL SENSOR
AVFM 5.0 Area-Velocity Flow Meter
DOPPLER VELOCITY SENSOR COUPLING
Dual Sensor Configuration
For permanent or temporary bonding, the following are recommended:
a) Dow Corning silicon compound #4 (supplied)
Additional supply: order Greyline Option CC
b) High Temperature compound (supplied with Sensor Option SE3H)
Additional supply: order Greyline Option AP-1W
c) Water-based sonic compound: Order Greyline Option CC30
d) Electrocardiograph gel
e) Petroleum gel (Vaseline)
The above are arranged in their order of preferred application.
d & e are only good for temporary bonding at room temperature.
DO NOT USE: Silicon RTV caulking compound (silicon rubber).
COMPOUND
Use the PC4 pipe clamp (supplied) as illustrated above or
use a loop of electrical tape for temporary mounting. Apply
silicon coupling compound #4 to the coloured face of the
sensor. A bead, similar to toothpaste on a toothbrush, is
SENSOR
ideal. Do not overtighten (crush the sensor).
The sensor must be fixed securely to the pipe with coupling material
COMPOUND
between the sensor face and the pipe. Sensor installation with
excessive coupling compound can result in gaps or voids in the
coupling and cause errors or loss of signal. Insufficient coupling
SENSOR
PIP E
compound will create similar conditions.
TAPE OR
CLAMP
Over time temporary coupling compounds (e.g. Petroleum Gel) may gradually sag away from the sensor
resulting in reduced signal strength and finally complete loss of signal. Warm temperatures, moisture
and vibration will accelerate this process. Dow Corning Silicone Compound #4 as supplied with the
AVFM 5.0 (and available from Greyline Instruments) is recommended for semi-permanent installations.
Page 49
AVFM 5.0 Area-Velocity Flow Meter
SENSOR MOUNTING
Dual Sensor Configuration
Prepare an area 2" wide by 4" long (50mm x 100mm) for sensor bonding by removing loose paint, scale
and rust. The objective of site preparation is to eliminate any discontinuity between the sensor and the
pipe wall, which would prevent acoustical coupling.
A PC4 Sensor Mounting Kit is supplied with each Greyline flow meter. It includes recommended
coupling compound in a plastic applicator and a stainless steel mounting bracket with adjustable pipe
straps.
Additional stainless steel bands (by customer) may be combined
END VIEW
to mount on pipes up to 180" / 4.5 m OD.
PIPE
SENSOR
ADJUSTABLE
STAINLESS
STEEL STRAP
PIPE
Page 50
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