UFM UFM-50 Manual

UFM-50
Ultrasonic Doppler Flowmeter
MANUAL
Installation & Operating Instructions
Ultrasonic Doppler Flowmeter
Model: UFM-50
T [phone]
E [email protected]
www.u-f-m.nl
U-F-M b.v.
Argon 24
4751 XC Oud Gastel
The Netherlands

Note: This page has been left blank intentionally.

P. 3
UFM-50 Doppler Flowmeter
INDEX
CONNECTIONS ................................................................................................................ 4
KEYPAD SYSTEM............................................................................................................ 6
CALIBRATION MENU..................................................................................................... 7
ICONS................................................................................................................................. 8
MESSAGE ICON............................................................................................................... 9
STATUS ............................................................................................................................. 9
PASSWORD..................................................................................................................... 10
MENU SELECTIONS...................................................................................................... 10
UNITS/MODE.................................................................................................................. 11
CALIBRATION................................................................................................................ 13
CALIBRATION (CONT.)................................................................................................ 14
RELAY PARAMETERS.................................................................................................. 15
DATA LOGGING ............................................................................................................ 16
COMMUNICATION (OPTIONAL) ................................................................................ 18
SPECIAL FUNCTIONS................................................................................................... 20
SENSOR MOUNTING..................................................................................................... 23
ENCLOSURE INSTALLATION..................................................................................... 27
FIELD TROUBLESHOOTING ....................................................................................... 28
COMMON QUESTIONS AND ANSWERS ................................................................... 31
WARRANTY.................................................................................................................... 33
OPTIONS ..........................................................................................................................34
MODBUS® COMMUNICATION ....................................................................................40
HART® COMMUNICATION ..........................................................................................51
SPECIFICATIONS ...........................................................................................................63
PIPE CHARTS ..................................................................................................................65
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

P. 4
UFM-50 Doppler Flowmeter
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/10 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.
QUICK BENCH TEST:
Connect Sensor as shown on next page, then Power. Test operation of the UFM-50 by holding the
sensor in one hand and rubbing your thumb or fingers briskly across the face (plastic surface) of the
sensor. Allow 15 seconds for the UFM-50 to process the signal and display a flow value.

P. 5
UFM-50 Doppler Flowmeter
CONNECTIONS
AC
L N
NO
C
NC
NO
C
NC
–
+
4-20mA
RLY2
RLY1
NC C NO NC C NO NC C NO NC C NO
RLY3 RLY4 RLY5 RLY6
EXTRA RELAYS OPTION
POWER
INPUT
HEATER OPTION
SENSOR
GND
SERIAL COMMUNICATION OPTION
AC
GND
SENSOR
RCVR GND GND TMTR
RS-485
Output
+ G

P. 6
UFM-50 Doppler Flowmeter
KEYPAD SYSTEM
The diagram on page 7 shows the UFM-50 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 button.

P. 7
UFM-50 Doppler Flowmeter
CALIBRATION MENU
--Password----------
Password 0000
--Messages----------
LData og Logging
dLog Use 0.00000 %
Sensor Good
--Status------------
Velocity 0.00ft/s
Flow 0.00 USG/M
Min Flow 0.00USG/M
Signal Strength 0%
Signal Cutoff 10%
--Menu--------------
Units / Mode
Calibration
Relay Parameters
Data Logging
Communication
Special Functions
Simulation
Configuration
OPTIONAL FEATURES
--24 hr log----------
Date Feb. 12/2010
50138 USGTotal
34.82 USG/mAverage
52.20 USG/mMaximum
11:08:00Max Time
0.000 USG/mMinimum
9:15:00Min Time
USG/m
Tot 20130 USG
Relays 1 2 3 4 5 6
0.00
*
* Menu only appears if "New Password" has been
changed from 0000 in "Special Functions" menu.
--Data Logging-------
Log Site ID 0
Mode Flow
File Format .LG2
Date May 18/2018
Time 11:27:40
Interval 10sec
Data Log Logging
--Relay Parameters--
Relay 1
Function Flow
/mOn 1000 USG
/mOff 0.000 USG
--Simulation--------
Test Actual
Flow /m250USG
Flow4-20mA 5.60
Relays 1 2 3 4 5 6
--Configuration-----
Serial# 12345
Utility 2 0.51.2 .
Doppler 1. 6.11
CommBoard 1.18.0
6Relays
Analog Out 1
--Communication-----
Protocol Modbus
Address 001
BPS 9600
Parity Even
Stop Bits 1
--Calibration-------
Mode Flow
20mA 500 USG/m
4mA 0 USG/m
5.00 USG/mMin Flow
Signal Cutoff 10%
Damping 10%
Mode FIR
Percent 10%
Window 1.0 ft/s
Pipe ID 4.03 in
Cal Constant 1.000
--Special Functions-
Language English
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Neg. Totals No
Rev. Flow No
Capture Par No
Capture WF No
Restore Defaults No
New Password 0000
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Multiplier x1
Decimal 0s
Velocity ft/s
Flow USG/m
Decimal 2s

P. 8
UFM-50 Doppler Flowmeter
ICONS

P. 9
UFM-50 Doppler Flowmeter
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 UFM-50 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.
Sensor Displays the status of the sensor hardware. Even with
the sensor disconnected or shorted, the flowmeter will
display Good. To check sensor integrity, use the sensor
resistance test procedure on page 28. If HardwareFault
is detected, navigate to the Configuration page in the
Main Menu to determine which circuit board is not
communicating.
STATUS
Press from the main display to view instrument status. Velocity will be
displayed in ft/sec or m/sec.
Velocity Displays the measured flow velocity in units selected in
the Units/Mode menu.
Flow Displays the measured flow rate in units selected in the
Units/Mode menu.
Min Flow Displays the minimum flow rate setting. This value is
read-only. The Min Flow can be changed in the
Calibration programming menu. A measured Flow
value below the Min Flow value will display as 0 flow
on the meter’s LCD display.
Signal
Strength Displays the strength of the received Doppler signal on
a 0-100% scale.
Signal Cutoff Displays the signal cutoff. This value is read-only. The
Signal Cutoff can be changed in the Calibration
programming menu. If Signal Strength is less than
Signal Cutoff, the meter will report 0 velocity and flow
on the LCD display. Setting may need to be adjusted in
the case of unstable flow near zero, or when high levels
of industrial noise are present.
USG/m
Tot 20130 USG
Relays 1 2 3 4 5 6
0.00
--Messages----------
LData og Logging
dLog Use 0.00000 %
Sensor Good
--Status------------
Velocity 0.00ft/s
Flow 0.00 USG/m
Min Flow 0.00USG/m
Signal Strength 0%
Signal Cutoff 10%

P. 10
UFM-50 Doppler Flowmeter
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.
IMPORTANT: Inserting a USB drive into the meter while on this screen will
transfer 24 HR Log data to the USB drive in .csv format.
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, this screen will be bypassed
completely.
A new password can be stored by going to the Special Functions New
Password menu.
If a user 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.
MENU SELECTIONS
The Menu selections page is used to navigate to specific menus which are
described in more detail on the following pages.
Press or to navigate to different menus, and to enter the selected menu.
--Menu--------------
Units / Mode
Calibration
Relay Parameters
Data Logging
Communication
Special Functions
Simulation
Configuration

P. 11
UFM-50 Doppler Flowmeter
UNITS/MODE
At 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.
At Linear press the key and then the or to select your units of
measurement. The Linear units define what units the pipe dimensions and sensor
spacing will be displayed in. Typically inches or mm is selected. Press the to
store your selection then the

to the next menu
item
.
At Volume, press the

and then the

or

to select units for volume. Note:
“bbl” denotes US oil barrels. Press the to store your selection then the to the
next menu item.
At Multiplier, press the

and then the

or

to select the totalizer
multiplier. Multipliers are used when resolution down to single digit is not
required, or when you don’t want to convert from gallons to thousands of gallons,
as an example. Press

to store your selection then

to the next menu item.
At Decimals (Volume), press the

and then the

or

to select the number
of decimal points to be present on the totalizer display on the LCD screen. Default
= 0. Options = 0, 1, 2. Press the to store your selection then the to the next
menu item.
At Velocity, press the

and then the

or

to select the engineering
units for flow velocity. Press to store your selection then to the next menu
item.
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Multiplier x1
Decimal 0s
Velocity ft/s
Flow USG/m
Decimal 2s

P. 12
UFM-50 Doppler Flowmeter
UNITS/MODE (cont.)
At Flow, press the

and then the

or

to select the engineering units for
flow rate. Press to store your selection then to the next menu item.
Available Flow Rate Engineering Units:
Abbreviation Description Abbreviation Description
USG/d US gallons per day L/d liters per day
USG/h US gallons per hour L/h liters per hour
USG/m US gallons per minute L/m liters per minute
USG/s US gallons per second L/s liters per second
ft3/d cubic feet per day m3/d cubic meters per day
ft3/h cubic feet per hour m3/h cubic meters per hour
ft3/m cubic feet per minute m3/m cubic meters per minute
ft3/s cubic feet per second m3/s cubic meters per second
bbl/d barrels per day (1 bbl = 42 USG) IG/d Imperial gallons per day
bbl/h barrels per hour (1 bbl = 42 USG) IG/d Imperial gallons per day
bbl/m barrels per minute (1 bbl = 42 USG)
gal)
IG/d Imperial gallons per day
bbl/d barrels per second (1 bbl = 42 USG)
gal)
IG/d Imperial gallons per day
USMG/d US million gallons per day IMG/d Imperial million gallons per day
USMG/h US million gallons per hour IMG/h Imperial million gallons per hour
USMG/m US million gallons per minute IMG/m Imperial million gallons per minute
USMG/s US million gallons per second IMG/s Imperial million gallons per second
At Decimals (Flow), press the

and then the

or

to select the number of
decimal points to be present on the flow rate display on the LCD screen. Default =
2. Options = 0, 1, 2. Press the to store your selection then the to the next
menu item.
--Units/Mode--------
Mode Flow
Linear in
Volume USG
Multiplier x1
Decimal 0s
Velocity ft/s
Flow USG/m
Decimal 2s

P. 13
UFM-50 Doppler Flowmeter
CALIBRATION
Press or to position curser at Calibration menu, and to enter. Use or
to position cursor before each menu item and to enter. When settings are
completed press to store and again to return to the Main Menu.
20mA
(5V)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
(0V)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 Flow Press

and enter a minimum flow cutoff. Forward and
reverse flows less than Min Flow will be forced to
zero.
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%.
--Calibration-------
Mode Flow
20mA 500 USG/m
4mA 0 USG/m
5.00 USG/mMin Flow
Signal Cutoff 10%
Damping 10%
Mode FIR
Percent 10%
Window 1.0 ft/s
Pipe ID 4.03 in
Cal Constant 1.000

P. 14
UFM-50 Doppler Flowmeter
CALIBRATION (cont.)
Damping
Mode Choose between OFF, FIR (Default), or LOW PASS.
When measured flows are outside the Window of the
running average, the FIR filter will reduce the damping
average so that a fast response can be made to the sudden
change in flow rate.
The LOW PASS filter will ignore measured flow rates
outside the Window, while holding the running average,
until there are enough data points outside the Window to
cause a step-response to the new measured value.
While measured flows are within the Window of the
running average, both the FIR and LOW PASS filter
behave the same.
Percent Higher percentages increase the number of measurements
which are averaged together to produce a stable flow
reading. Higher percentages also increase the time it
takes for the meter to make a step-response to the
measured flow rate outside the Window in the LOW
PASS Mode.
Window Defines the Window around the running average, in units
of Velocity set in the Units/Mode menu. Measurements
made inside the Window are added to the running
average, and measurements outside the Window effect
the response of the meter as described in the Mode
section.
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.
Cal Constant Scales the velocity reading. Factory value is close to
1.000 for a SE4-A sensor.
Press to return to Menu Selections screen.
--Calibration-------
Mode Flow
20mA 500 USG/m
4mA 0 USG/m
5.00 USG/mMin Flow
Signal Cutoff 10%
Damping 10%
Mode FIR
Percent 10%
Window 1.0 ft/s
Pipe ID 4.03 in
Cal Constant 1.000

P. 15
UFM-50 Doppler Flowmeter
RELAY PARAMETERS
Press or to position curser at Relay Parameters, and to enter. Use or 
to position cursor before each menu item and to enter. When settings are
completed press to store and again to return to the Main Menu.
Relay Press

and

or

to select a corresponding relay number
(2 relays are standard, 4 additional are optional).
Function Press

or

to select Off, On, Pulse or Flow.
Flow On Highlight the numerals and press

or

to set digits to
the required relay On set point.
Off set digits to the required Off set point.
Direction When flow is in the positive direction, the relay will be
disengaged, when flow is negative, the relay engages.
Note: Rev. Flow in the Special Functions menu must be ON
or
INVERT
for this to work properly.
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 Relay and change settings for each relay
number.
Press to return to Menu Selections.
ON
Sets relay in energized state.
--Relay Parameters--
Relay 1
Function Flow
/mOn 1000 USG
/mOff 0.000 USG

P. 16
UFM-50 Doppler Flowmeter
DATA LOGGING
Press or to position curser at Data Logging, and to enter. Use or to
position cursor before each menu item and to enter. When settings are
completed press to store and again to return to the Main Menu.
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 (e.g. ft/sec or m/sec) or Flow (e.g. USGPM or
l/sec). Press to store the setting.
File Format Choose .LG2 to download data in .lg2 format for viewing on
Date
Time
Interval
Data Log
logger software. Choose .CSV to download data in .csv
format for import directly to Excel. This menu option can be
changed at any time without adversely affecting existing data.
Press , and or to scroll and select Month, Day and
Year. Press to store the setting.
Press , and or to select the current time in Hours,
Minutes and Seconds. Press to store the setting.
Press or to select the logging interval. Press to store
the setting. U-F-M recommends choosing an interval which
will give you as much resolution as required and no more.
Choosing too often of an interval for what is required will
result in larger data files, which may take a long time to
download to USB. Reference page 15 for specific download
times. In critical installations, data should be downloaded
often.
Stop, Start or Delete the log file. Press or to select
Delete and to delete the log file. Press or to select
Start and to start the logger.
Important Note: You MUST Delete an old log and Start a new log AFTER
having made changes to Log Site ID, Mode, Date, Time and/or Interval for those
changes to be applied.
Important Note: Changing any of the parameters in the Units/Mode menu will
start a new log. It is recommended that you Delete and start a new log after
changing any Units/Mode settings.
--Data Logging-------
Log Site ID 0
Mode Flow
File Format .LG2
Date May 18/2018
Time 11:27:40
Interval 10sec
60min
30min
15min
10min
5min
2min
1min
30sec
Data Log Stop
Start
Delete

P. 17
UFM-50 Doppler Flowmeter
Tag is set according to the Log Site ID entered in the instrument Data
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.
Note: Downloading files in .lg2 format will take approximately 35 seconds per
1% of internal log memory used.
Downloading files in .csv format will take approximately 8 minutes per 1%
of internal log memory used.
OPENING .LG2 FILES
Install the logger programm on your PC or laptop. Select File/Open/Instrument
Log (.log) to open the log file from your USB flash drive.
OPENING .CSV FILES
Use a datasheet program such as Microsoft Excel® to import data in a comma
delimited format. Use Excel to manipulate or graph data.
RETRIEVING LOG FILE
Plug a USB Flash Memory Drive (one is included with the UFM-50) into the
USB output port on the Panel of the meter. The instrument display will show
the data download icon until the log file is transferred to the memory card. The
USB flash drive may be removed when the icon for download successful
appears.
Download file names will appear in this format:
DFM__00A.LG2
or
DFM__00A.CSV
MODEL
TAG
DOWNLOAD

UFM-50 Doppler Flowmeter
COMMUNICATION (Optional)
Press or to position curser at Communication, and to enter. Use or 
to position cursor before each menu item and to enter. When settings are
completed press to store and again to return to the Main Menu.
MODBUS Protocol Information:
Transceiver: 2-wire, half-duplex
Data format: 8 Data Bits
Floating Point Byte Order: ABCD
Termination: Jumper JP1 selectable 120Ω resistor. TB1 & TB2 = OFF,
TB2 & TB3 = ON
Biasing: None
HART® (Highway Addressable Remote Transducer) Protocol Information:
HART Version: 7.0
Device
Description
Files:
Connections:
Protocol
Address
(Modbus)
DD files allow the user’s handheld HART communicator to
fully configure the UFM-50. U-F-M provides DD files for the
Emerson 475 Communicator. The files are included in the
USB drive provided with your UFM-50 meter. You may also
request the files from U-F-M by calling or emailing us at
[e-mail]. Warning: The UFM-50 and associated DDs
are pending certification from the Fieldcomm Group.
HART Protocol uses a digital signal superimposed on the
4-20mA output. When the 4-20mA output of the UFM-50 is
connected with a load resistor (230Ω to 600Ω), the HART
communicator can be connected on the loop in order to
communicate.
Choose MODBUS or HART.
Device address for the UFM-50. Valid range: 001-247
(Default: 001). This number should be unique across the bus.
Press or to scroll, to select digits, and press to store
the setting.
P. 18

P. 19
UFM-50 Doppler Flowmeter
COMMUNICATION (Optional) cont.
BPS
(Modbus) Baud rate for the MODBUS communications. Press

or

to select, and to store the setting. Options: 4800, 9600,
19200, 38400, 57600, 76800, and 115200 (Default: 9600).
Parity
(Modbus) Error checking parity for the MODBUS communications.
Press or to select, and to store the setting. Options:
None, Even, and Odd (Default: Even).
Stop Bits
(Modbus) Press

or

to select, and to store the setting. Options: 1
or 2 (Default: 1).

P. 20
UFM-50 Doppler Flowmeter
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 for 1 minute 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.
Neg. Totals Select Yes to have reverse flow readings
deducted from the totalizer. Select No to totalize
forward flow only and ignore reverse flow.
Rev. Flo Select On to enable flow direction
measurement. Select Off to disable flow
direction measurement. Select Invert to
invert the sense of the flow measurement.
Capture Par This function captures the programming
parameters in the meter. Select Yes, wait for
Insrt USB to appear, then insert a USB drive
into the USB port to transfer the parameters. After
Saving flashes, Done will appear on the screen,
meaning it is safe to remove the USB.
--Special Functions-
Language English
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Neg. Totals No
Rev. Flow No
Capture Par No
Capture WF No
Restore Defaults No
New Password 0000