Greyline Instruments DFM-5.1 Operating Manual
www.greyline.com
USER'S GUIDE
Installation & Operation
Instructions
Doppler Flow Meter
Model DFM 5.1
Manual Series A.1
Note: This page has been left blank intentionally.
DFM 5.1 Doppler Flow Meter
INDEX
CONNECTIONS ..................................................................................................... 4
KEYPAD SYSTEM ................................................................................................ 6
CALIBRATION MENU ......................................................................................... 7
ICONS ..................................................................................................................... 8
MESSAGE ICON .................................................................................................... 9
STATUS .................................................................................................................. 9
PASSWORD .......................................................................................................... 10
UNITS/MODE ....................................................................................................... 11
CALIBRATION .................................................................................................... 12
RELAY PARAMETERS ....................................................................................... 13
SPECIAL FUNCTIONS ........................................................................................ 14
SENSOR MOUNTING ......................................................................................... 16
ENCLOSURE INSTALLATION .......................................................................... 20
FIELD TROUBLESHOOTING ............................................................................ 22
COMMON QUESTIONS AND ANSWERS ........................................................ 25
APPLICATIONS HOTLINE ................................................................................. 27
PRODUCT RETURN PROCEDURE ................................................................... 28
FLOW METER DATA SHEET ............................................................................ 29
APPENDIX A – OPTIONS ................................................................................... 31
DATA LOGGING ................................................................................................. 37
SPECIFICATIONS ................................................................................................ 39
PIPE CHARTS ...................................................................................................... 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.
If this product is not used as specified by the manufacturer, protection may be impaired.
Available in Adobe Acrobat pdf format
Page 3
DFM 5.1 Doppler 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).
Page 4
CONNECTIONS
DATA LOGGER OPTION
DFM 5.1 Doppler Flow Meter
SENSOR
GND
GND
RCVR
TMTR
EXTRA RELAYS OPTION
4-20mA
RLY2
RLY1
NC
RLY3
AC
LN
–
+
NO
C
NC
NO
C
NC
AC
GND
NC
C
POWER
INPUT
C
NO
NO
RLY4
HEATER OPTION
USB HARNESS
CONNECTOR
NC
RLY5
C
NO
RLY6
NC
C
NO
SENSOR
GND
Page 5
DFM 5.1 Doppler Flow Meter
KEYPAD SYSTEM
The following diagram shows the DFM 5.1 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 6
CALIBRATION MENU
DFM 5.1 Doppler Flow Meter
Linear in
Volume USG
Time min
Mode Flow}
--Units/Mode--------
--Calibration-------
4mA at 0.000 USG/m
Min Vel 0.000ft/s
Pipe ID 12.00in
20mA at 2500.0 USG/m}
1Damping 0%
/mOn 1000 USG
/mOff 0.000 USG
Function Flow
Mode Pump
Relay 1}
--Relay Parameters--
--Data Logging-------
Set Time 11:27:40
Mode Flow
Interval 10sec
Set Date 18/20May 13
Log Site ID 0}
Units / Mode}
--Menu Selections----
Log Logging
Calibration
Relay Parameters
Data Logging
Special Functions
Simulation
Configuration
Language English}
--Special Functions-
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Negative Totals NO
Flo Direction NO
Cal Constant 1.000
Restore Defaults No
Flow4-20mA 5.60mA
Flow /m250USG
New Password 0000
--Simulation--------
Relays 1 2 3 4 5 6
}Test Actual
6Relays
24Logger 1. T
Doppler 1.15
Utility 1.25.01
--Configuration-----
}
Analog Out 1
Password 0000
--Password----------
USG/m
dLog Use 0%
Data log Logging
Sensor Good
--Message-----------
0.000
Tot 20130.8 USG
Relays 1 2 3 4 5 6
11:08:00Max Time
50138 USGTotal
52.20 USG/mMaximum
0.000 USG/mMinimum
34.82 USG/mAverage
Date Feb. 12/20} 10
--24 hr log----------
9:15:00Min Time
2500.0 USG/m20mA at
Tot 0.000USG
Signal Cutoff 5%
Signal Strength 0%
Velocity 0.00ft/s}
--Status------------
Relays 1 2 3 4 5 6
OPTIONAL FEATURES
Page 7
ICONS
DFM 5.1 Doppler Flow Meter
1. 2.
1.
1.
2.
2. 3.
4.
Message waiting. Press .Ç
Data logging .off
Data logging .on
USB file download.
File download completed.
Download Error.
Page 8
DFM 5.1 Doppler Flow Meter
USG/m
0. 000
Tot 20130.8 USG
Relays 1 2 3 4 5 6
--Message----------Data log Logging
Sensor Good
--Status------------
Velocity 0.00ft/s
}
Tot 0.000USG
Signal Cutoff 5%
Signal Strength 0%
Relays 1 2 3 4 5 6
20mA at 2500.0 USG/m
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 DFM 5.1
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 will be
displayed in ft/sec or m/sec.
Tot
Signal Cutoff
Displays the current totalizer reading.
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.
Relays
Energized relays will display as a white character on
a black background.
20mA at
Displays the flow rate set as 20mA in the Calibration
menu. Press to return to the main display.
Page 9
DFM 5.1 Doppler Flow Meter
--24 hr log---------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 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 is 0000 and if it has not been changed press the to proceed to the
Password. Factory default
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
Password
.
Special Functions/New
Page 10
DFM 5.1 Doppler Flow Meter
--Units/Mode-------Mode Flow
}
Linear in
Volume USG
Time min
--Units/Mode--------
Mode Flow
Linear} in
--Units/Mode--------
}Volume USG
ft3
bbl
IMG
USMG
ft
mm
m3
IG
UNITS/MODE
From
Velocity. Flow mode displays the flow rate in engineering units (e.g. gpm,
Mode press the and then the or to select Flow or
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
m
save your selections.
symbol to each subsequent menu item and the to
Note: the volume selection "bbl" denotes U.S. oil barrel.
Press or to return to the Menu Selections screen.
L
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Time} sec
day
hr
min
Page 11
DFM 5.1 Doppler Flow Meter
--Calibration------20mA at 2500.0 USG/m}
4mA at 0.000 USG/m
Min Vel 0.000ft/s
Pipe ID 12.00in
1Damping 0%
CALIBRATION
Press the 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
(5V Flo)
Press then or to 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.
4mA at
(0V Flo)
Press or to 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).
Min Vel
Press and enter a minimum velocity cutoff. Forward and
reverse velocities less than
Min Vel will be forced to zero.
Pipe ID
Place the cursor under the digits and then or to change the
numbers and decimal point.
Pipe ID should be entered as
the exact inside diameter of the pipe where the sensor is
mounted. Refer to the Pipe Charts Appendix in this manual for
inside diameter of common pipe types and sizes.
Damping
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 10%.
Press to return to Menu Selections screen.
Page 12
DFM 5.1 Doppler Flow Meter
--Relay Parameters-Relay 1
}
Function Flow
Mode Pump
On 1000 USG
Off 0.000 USG
RELAY PARAMETERS
Relay
Press and or to select a corresponding relay number (2
relays are standard, 4 additional are optional).
Function
Flow
Press or to select Off, Pulse or Flow.
Mode Select Pump, Low Alarm or Hi Alarm.
Pump mode provides separate On/Off settings where the
relay will energize at one flow rate and de-energize at another.
On Position the cursor under the numerals and press or
to set digits to the required relay
Off set digits to the required Off set point.
Low Alarm mode relay will energize at a programmable
flow rate and remain energized with flow below the set point.
When flow rises above the set point, the relay will de-energize.
Hi Alarm mode relay will energize at a programmable
flow rate and remain energized with flow above the set point.
When flow falls below the set point, the relay will de-energize.
Pulse
Press and set digits to the flow volume increment required
between relay pulses. 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
number.
Press to return to
On set point.
Relay and change settings for each relay
Menu Selections.
Page 13
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