Long-run LRF-2000M User manual

Ultrasonic Flow Meter User Manual
Type: LRF-2000M
LONGRUN INDUSTRIAL INSTRUMENT CO.,LTD

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Contents
1. Must-knows about LRF-2000M .....................................................................................4
2. Introduction to new generation LRF-2000M...................................................................5
2.1 Development introduction ....................................................................................5
2.2 Features .............................................................................................................6
3. On Board Segmental LCD display Details.......................................................................8
4. Menu Window Details................................................................................................12
5. Begin to mount and measure .....................................................................................22
5.1 Steps to Configure the Parameters......................................................................22
5.2 Transducers Mounting Allocation.........................................................................24
5.3 Transducers Installation .....................................................................................25
5.3.1 Wiring diagram of transducer.....................................................................26
5.3.2 Transducers Spacing .................................................................................26
5.3.3 V-method Installation................................................................................26
5.3.4 Z-method Installation ................................................................................27
5.3.5 W-method Installation...............................................................................27
5.3.6 N-method Installation................................................................................27
5.4 Installation Checkup ..........................................................................................28
5.4.1 Signal Strength .........................................................................................28
5.4.2 Signal quality............................................................................................28
5.4.3 Time Ratio between the Measured Total Transit Time and the Calculated Time
.......................................................................................................................29
6. How To....................................................................................................................29
6.1 How to judge if the instrument works properly.....................................................29
6.2 How to judge the liquid flowing direction.............................................................30
6.3 How to change between units systems................................................................30
6.4 How to select a required flow rate unit................................................................30
6.5 How to use the totalizer multiplier.......................................................................30
6.6 How to open or shut the totalizers ......................................................................30
6.7 How to reset the totalizers .................................................................................31
6.8 How to restore the flow meter with default setups ...............................................31
6.9 How to use the damper .....................................................................................31
6.10 How to use the zero-cutoff function ..................................................................31
6.11 How to setup a zero point ................................................................................31
6.12 How to get a scale factor for calibration.............................................................32
6.13 How to use the system locker ...........................................................................32
6.14 How to use 4-20mA current loop output ............................................................32
6.15 How to use the Frequency Output.....................................................................33
6.16 How to use the Totalizer Pulse Output ...............................................................34

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6.17 How to produce an alarm signal........................................................................34
6.18 How to use the built-in Buzzer ..........................................................................35
6.19 How to use the OCT output ..............................................................................35
6.20 How to modify the built-in calendar...................................................................35
6.21 How to view the Date Totalizers........................................................................35
6.22 How to use the Working Timer..........................................................................36
6.23 How to use the manual totalizer .......................................................................36
6.24 How to know how long the battery will last........................................................36
6.25 How to check the ESN and other minor details ...................................................36
6.26 How to use the data logger for scheduled output ...............................................36
6.27 How to output analogue voltage signal..............................................................37
6.28 How to adjust the LCD display ..........................................................................37
6.29 How to use RS232/RS485? ...............................................................................37
6.30 How to use automatic amending function for offline compensation ......................37
6.31 How to use batch controller..............................................................................37
6.32 How to adjust the analogue output ...................................................................37
6.33 How to solidify the parameters .........................................................................38
6.34 How to enter the parameters of user-type-transducer.........................................38
6.35 How to use the circular display function.............................................................38
6.36 How to enter into the linearity correcting? How to enter into the data? ................38
6.37 How to save / restore frequently-used pipe parameters ......................................40
7. Communication Protocols...........................................................................................40
7.1 The MODBUS protocol .......................................................................................40
7.1.1 MODBUS REGISTERS TABLE ......................................................................41
7.1.2 REGISTER TABLE for the DATE accumulators ..............................................47
7.1.3 REGISTER for power-on and power-off .......................................................49
7.2 The FUJI extended communication protocol.........................................................51
7.2.1Command prefixes and the command connector...........................................54
7.3 The compatible communication protocols ............................................................55
7.4 Key Value Table ................................................................................................58
8. Troubleshooting........................................................................................................58
8.1 Power-on Error Displays and Counter-Measures ...................................................58
8.2 Error Code and Counter-Measures ......................................................................59
8.3 Other Problems and Solutions.............................................................................60

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Technical Manual for LRF-2000M
This manual applies to LRF-2000M version13.44 and above.
1. Must-knows about LRF-2000M
Please read the following paragraphs when you use LRF-2000M for the first time
1. The setup of a LRF-2000M ultrasonic flow converter needs one of the three tools. The
first tool is a parallel LCD and keypad module which can be connected to the 20 Pins port.
The second tool is a serial LCD and keypad module which can be connected to the RS485
port. The third one is a PC-based software (under development), by means of the software,
the parameters that LRF-2000M needs to work properly could be downloaded by use of the
RS232 port on the PC. If your computer does not have a RS485 port, you need to buy a
RS485-RS232 converter.
2. All setup parameter data are stored in the RAM memory temporally. Users need to
solidify the parameters, when setups are been finished, that is to store the parameter to
the internal flash memory. Go to Menu26, Select the option that says “make default paras”
then pressing the ENT key will start the progress of storing. If the current parameters are
different with that in the flash memory, the system will store your current parameters into
the flash memory and then boot again. By doing so, the parameters will always be get lost,
even when both the power supply and the backup battery are removed.
3. The zero point, that is the indicated flow under the situation of motionless liquid, has a
great influence over the linearity and accuracy of the flow meter. Users should try every
possibility to perform the Zero Setup that is located at Menu 42. Zero setup should always
been performed under the condition of motionless liquids. If Zero setup was been
performed with motion of the liquid, you can use Menu 43 to restore to the original zero
point. The zero point will be stored in the RAM memory temporally when you use Menu 42.
If you want to solidify the zero point, you need to perform Menu 26 “make default paras”
function again. If this step was omitted, the system will override the RAM zero point by
restoring the zero point that is stored in the flash memory with next power-on.
4. The internal calendar is the base of date accumulators. Incorrect date and time will
cause messy records with the date accumulators. Please the user check the calendar by
input correct date and time. The calendar runs relying on the backup battery when there is
no 24VDC supply. When the battery voltage is less than 2 volts, a new backup battery
should be replaced with. Replacing the battery with a new one should be performed with
the 24VDC applied so that the accumulator data and calendar data will not get lost.
5. Please pay great attention to the power supply. The applied voltage should be in the
range of 8V to 36VDC, or 10V to 30VAC. Avoid applying an 110VAC or 220VAC power
forever, or the module will be damaged.
6. Pay attention to the display located on Menu 48, which shows the points of lines for the
linearity correction function. 0 stands for shutting off the function. The default value is 0.
Try to make sure that value is 0 so as to avoid abnormal flow.

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7. The latest calibrated data which are produced by performing the analog input or output
calibration are store in the RAM memory temporally. Users need to perform the M26
function to make these data be solidified.
8. Use Menu 49 to check if there are inputs from the RS485 port with network application.
If not, please check protocol selection software switch located at Menu 63 and the serial
port parameters
options located at Menu62. Select option 1 at Menu 63 for the MOSBUS RTU application.
Select option 0 for MODBUS ASCII and FUJI extended and Simple Water Meter protocols.
2. Introduction to new generation LRF-2000M
2.1 Development introduction
The new generation LRF-2000M is developed with the experience of 12 years of manufacturing
and based on our version-7 and version-11 flow meters. By using the high performance
MSP430FG4618 microprocessor made by Taxes Instruments, it is intend to provide our
customers with lower cost but of high performance general purpose ultrasonic flow meter/heat
meter/ultrasonic flow converter.
The PCB board used in a LRF-2000M module is our 13th version of ultrasonic flow meters, so
that we usually call it version-13 flow meter. The PCB board measures 116x62 millimeter. It is
encased in a plastic rectangle case that could be plugged easily onto an installation rail. The
power supply is 8~36VDC@50Ma (10~36VAC is also applicable). It is equipped on board with
a 96-segments LCD display, an isolated 4~40mA current output, 3 ways of analog input, one
Serial Expanding Bus socket, 2 ways of OCT switch output, 2 ways of PT100 RTD inputs, one
isolated and surge protected RS485.
Compared with our early version-7 and version-11 flow meters, with the cost reduced
tremendously, major revisions as following have been made：
(1) 128 times of sample of original data (version-7 have only 50) made higher accuracy
(2) More communication protocols like MODBUS, Meter-BUS etc.
(3) Isolated DC/AC power supply makes meter could work properly on various demanding
industrial environments.
(4) The new generation of flow meter can measure heat/energy now, it is equipped with 2
two ways of PT100 RTD.
(5) Software updating can be done by the users now. If any software bug was found, we now
could send our users with an updating file via email.
The module can work alone without a LCD and Keypad module. The parameters that the flow
meter needed to work properly can be
(1) Setup by a parallel keypad module which will be plugged onto the parallel interface inside
of the module.
(2) By a serial keypad module which can be plugged onto RS485 serial port of the meter. The
serial keypad also serves to supply the 24VDC power for the flow meter.
(3) down-loading by use of a PC computer based software.

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The transducers can be one of any kinds of the types made by this company, include the
clamp-on type, the insertion type, the PI- type and standard-pipe type. It can even use
transducers made by the users or the transducers made by other company.
The module will satisfy the measurement requirement for most kind of liquids, such as water,
sea water, sew water and chemistry liquids. It can even measure pure paper pulp or fluids with
higher density suspend particles.
The module can be used alone as a flow meter. Users can even integrate a number of the
modules into a multi-channel flow meter that can measures up to several dozen of different
pipes or a flow meter that has higher accuracy by measures the same pipe with all the
channels.
The low flow performance of this module is better compared with our previous flow meters. It
can measure a flow that is as low as 0.001m/S properly when the PI-transducers are used.
2.2 Features
1. better than 1% accuracy, better than 0.2% repeatability.
2. 128 times of measurement and the revised software make the performance better and
the indicated flow more stable.
3. RS485 serial port
4. Three analog inputs.
5. One 4-20mA analog output.
6. Two OCT output channels
7. Ability to measure sewage water.
8. Four kinds of different types of transducers can be used, addition with user-defined
transducers.
9. The internal universal serial bus enables several output modules to be connected to it.
10. All the parameters can be solidify into the flash memory.
11. Several optional function module to be chosen to add to the main module.
12. More than 4 different kinds of communication protocol supported by the same time,
include MODBUS, Meter-BUS
13. Date totalizers that can record as much as 64 sets of data by day, 32 sets of data by
month. All the data can be retrieved by use of the MODBUS registers

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14. 32 records of power-on and power-off data. Data can be read through MODBUS.
15. Built-in data logger/printer, full programmable with what to be print, the start time,
interval, and output times.
16. Programmable pulse width of OCT output.
17 One Parallel Interface for display and keypad.
18 Plug-on-and-off display and keypad module can be connected to the serial port of the
meter.
19 Almost the same menu arrangement make the users of previous version of flow meter
very easy to operate.
20 A fluid velocity threshold enables the identification of the kinds of fluid.
21. Digital inputs can be inputted by used of the analog inputs.
22. A full programmable built-in batch controller which can be started by key-pressing, and
by the input to the analog inputs or through MODBUS protocol.
23. Power supply by 8VDC~36VDC/50mA or 10VAC~30VAC/50mA.
24. Daily time period flow totalizer. (refer to Menu #80)
2.3 Picture of the module and its terminal description

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Terminals（NOTE: The terminal pin-outs may vary with different module）
8~36V+, 8~36V－Power supply. 10~36VAC is also applicable to these two terminal.
485+, 485- RS485 terminals
AO+, AO- Analog output, loop powered
UP+, UP- Connect to the upstream transducer
DN+, DN- Connect to the downstream transducer
GND ‘Ground’ for the transducers. NOT for power and AO and RS485. Avoid of
making any connection from power to the GND terminal, or the isolation
will lost.
T1, T2 Connect to signal terminals of the PT100 RTD
. TX1, TX2 Connect to the power terminals of the PT100 RTD
The return terminals of the RTD connect to ‘GND’
AI3, AI4, AI5 Analog inputs, Ground connect to GND’
OCT+, OCT- OCT output terminals. OCT is related to Mneu78.
OCT2+, OCT2- OCT outputs, which is related to MENU79, the RELAY output setup’
3. On Board Segmental LCD display Details
Each LRF-2000M has an on board 96 segments LCD display, like in the figure. It is only for the
purpose of displaying. There 40 displays in total.
The only key is for the browsing of displays.
For numbers.
Signal strength
Signal Quality (the Q Value)
Flow is running.

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Repair needed
* Direction of the flow
* No flowing or flow not above threshold
* Battery is full
* For flow rate
* For energy flow rate
* For Total Energy
* The temperature difference
By the default setting (0 or 1 is input to [M3.]), when the only key is press shortly, the
on-board display will go to the next display, for example, from display 02 to display 03. If the
display reaches 40, it will go back to display 00.
When the key is pressed longer enough (3 seconds), the display will go directly to display 00,
no matter where it was before.
The on-board display can also be set to an automatically-scan-display mode. For example, if
number 10 is input to [M3.] window (parallel or serial keypad, or command to the serial port
needed), the on-board display will displays one after another from display
00>01>02….>09>00, automatically with an interval of eight seconds.
When the display is in the automatically-scan-display mode, if the display key is pressed, the
display will go to the ‘original’ display. By the next key press, display will go to the next display.
If a long key (more than 3 seconds) is pressed, display will go to display 00 directly.
3.1 On-Board display table
Number Patten Meaning Note
00 006789.45 m3Positive Total Flow Decimal point is determined by
M33，unit in m3
01 8.3215 m/s Flow rate Unit: m/s
02 007658.34 GJ Positive Total Heat Decimal point is determined by
M88, unit by M84
03 2.3214 KW Heat Flow rate Unit determined by M84
04 91.4 65.3 ℃Inlet and Outlet

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Temperature
05 34.2345
△℃
Temperature difference
06 000012.14 /h Failure Timer Unit : hours
07 F- 80 9 States Error Code, Signal Strength, and
Quality
08 23.15.49 Calendar, Time
09 07-12-31 Calendar, date
10 E0 0.1234 Flow velocity Unit: m/s
11 E1 99.876 Travel time rate ％, between the measured and
calculated travel time
12 E2 1480.3 The speed of the flow Unit: m/s
13 E3 4.0000 Current analog output Unit: mA
14 E4 130.24 Equivalent resistance of T1 Ω
15 E5 130.56 Equivalent resistance of T2 Ω
16 E6 15.00 Diameter of the pipe Millimeter
17 E7 12.34 Software version
18 12800001 Electronic Serial Number
19 E9 1 Address(ID) Use M46 for setup
20 002345.23 h Total working timer Unit: hours
21 071219.08 Date of manufacturing YYMMDD:HH
22 88888888 Display all segments
23 23 A5 F7 89 Inputs at the serial port For the purpose of checking
communication
24 L4 Pu-1 The used protocol Use M63 for select ting MODBUS
RTU/ASCII
25 L5 1.0000 Meter scale (meter factor)
26 23658933 m3 Total flow for the year
27 23658933 m3 Total flow the month
28 L8 56.546 Total travel time Unit: uS
29 L9 0.0045 Delta time Unit: nS
30 C0 4503 Delta Voltage 1 Normal between 3500~5000, for
diagnostics
31 C1 9034 Delta Voltage 2 Normal between 7000~9600, for
diagnostics

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32 C2 0.0023 M-clock Should always <0.1
33 C3 12.435 Current input at AI3 Unit: mA
34 C4 0.0001 Current input AI4 Unit: mA
35 C5 0.0000 Current input AI5 Unit: mA
36 0000234.5 KWh Negative Total Heat
37 000045.67 m3 Net total flow Decimal unit is determined by
M33
38 000012.34 m3 Negative total flow Decimal unit is determined by
M33
39 000012.34 m3 Total flow for the day Decimal unit is determined by
M33
3.2 On Board Display Error code
By checking Display 07, the state of the flow meter will show.
The display pattern is “FxG SS Q”
Where SS is the signal strength range in 00~99, normal 50~99, the bigger the better
Q is the signal quality range in 0~9, normal 5~9, the bigger the better
G step of adjusting signals. Normal is a space character.
X stands for the error code:
“-” Normal state, equal to ‘R’
“1” signal lower
“2” poor signal
“3” pipe empty
“4” hardware error(s)
“5” In signal adjusting
“6” Overflow at Frequency Output
“7” Over-range for the Analog Output
“8” Checksum error of internal data

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“9” clock or calendar error(s)
“A” Parameter checksum error
“b” Software checksum error
“C” Temperature circuits error
“d” Reserved
“E” Internal timer over flow
“F” Analog Inputs over range error
If more than one error code exists by the same time, the error codes will be display one after
another with time seconds.
4. Menu Window Details
The flow meter user interface comprises about 100 independent windows which are
numbered by M00, M01, M02……. M99, M+0, M+1 etc.
You do not need to remember all the menu windows. Just remember the most command used
windows and the proximate window numbers of some uncommonly used windows would be
sufficient. You can always use the going up and going down key to find the right window.
Note: 1 It is recommended to practice those menu windows on your flow meter while reading
this chapter for the sake of easier understanding.
2 To quickly switch to a menu window, simply press the ‘MENU’ key followed by the
window number (a two digit number). To move from one window to the next, use ‘UP’
or ‘Down’ keys.
Menu
window
No. Function
M00
Display flow rate and NET totalizer
If the net totalizer is turned off, the net totalizer value shown on the screen is the
value prior to its turn off
Select all totalizer unit in menu M31
M01 Display flow rate, velocity
M02
Display date time and POS(positive) totalizer
If the positive totalizer is turned off, the positive totalizer value shown on the screen
is the value
p
rior to its turn of
f

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M03
Display flow rate and NEG(negative) totalizer
If the negative totalizer is turned off, the negative totalizer value shown on the
screen is the value
p
rior to its turn of
f
M04 Display date and time, flow rate. The date and time setting method is found in
MENU60
M05 Display energy rate(instantaneous Caloric)and total energy (Caloric)
M06 Display temperatures, inlet T1, outlet T2
M07 Display analog inputs, AI3/AI4, current value and its corresponding temperature
or pressure or liquid level value
M08
Display all the detailed error codes
Display working condition and system error codes. ‘R’ stands for normal, others
refer to Cha
p
ter 8 for details.
M09 Display today’s total NET flow
M10
Window for entering the outer perimeter of the pipe
If pipe outer diameter is known, skip this menu and go to Menu 11to enter the outer
diameter
M11
Window for entering the outer diameter of the pipe. Valid range:0 to 18000mm.
Note: you just need to enter either the outer diameter in M11 or the peripheral in
M10
M12 Window for entering pipe wall thickness
You may skip the menu and enter inner diameter in M13 instead.
M13
Window for entering the inner diameter of the pipe
If pipe outer diameter and wall thickness are enter correctly, the inner diameter will
be calculated automaticall
y
, thus no need to chan
g
e an
y
thin
g
in the window
M14
Window for selecting pipe material
Standard pipe materials (no need to enter material sound speed ) include:
(0) carbon steel (1) stainless steel (2) cast iron (3) ductile iron (4) copper
(5) PVC (6) aluminum ,(7) asbestos (8) fiberglass
(
9
)
other
(
need to enter material sound s
p
eed in M15
)
M15 Window for entering the pipe material speed, only for non-standard pipe materials
M16
Window for selecting the liner material, select none for pipes without any liner.
Standard liner materials(no need to enter the liner sound speed) include:
(1) Tar Epoxy (2) Rubber (3) Mortar (4) Polypropylene (5) Polystryol
(6)Polystyrene (7) Polyester (8) Polyethylene (9) Ebonite (10) Teflon
(
11
)
Other
(
need to enter liner sound s
p
eed in M17
)
M17 Window for entering the non-standard liner material speed.
M18 Window for entering the liner thickness, if there is a liner
M19 Window for entering the ABS thickness of the inside wall of the pipe
M20
Window for selecting fluid type
For standard liquids(no need to enter fluid sound speed) include:
(0) Water (1) Sea Water (2) Kerosene
(3) Gasoline (4) Fuel oil (5) Crude Oil

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(6) Propane at -45C (7) Butane at 0C
(8)Other liquids(need to enter sound speed in M21 and viscosity in M22) (9)
Diesel Oil (10)Caster Oil (11)Peanut Oil (12) #90 Gasoline (13) #93
Gasoline
(
14
)
Alcohol
(
15
)
Hot water at 125C
M21 Window for entering the sound speed of non- standard liquid, used only when
o
p
tion item 8 ‘Other’ is selected in M20
M22 Window for entering the viscosity of the non-standard liquids, used only when
o
p
tion item 8 ‘Other’ is selected in M20
M23
Window for selecting transducer type, There are 22 types as following
0. Standard M (The middle size)
1. Insertion Type C
2. Standard S
3. User Type
4. Standard B
5. Insertion Type B(45)
6. Standrad L (The large size transducers)
7. JH-Polysonics
8. Standard-HS (small size transducer for Handheld flow meter)
9. Standard-HM (middle size transducer for Handheld flow meter)
10. Standard-M1 (middle size transducer #1)
11. Standard-S1 (small size transducer #1)
12. Standard-L1 (large size transducer #1)
13. PI-Type
14. FS410 (middle size transducer for FUJI flow meter)
15. FS510 (large size transducer for FUJI flow meter)
16. Clamp-on TM-1 (Middle size transducer )
17. Insertion TC-1
18. Calmp-on TS-1 (Small size transducer)
19. Reserved
20. Clamp-on TL-1 (Large size transducer)
21. Insertion TLC-2
If the user-type-transducer is selected, you need enter additional 4
user-type-wedge parameters that describe the user transducers.
If the PI-type transducer is selected, you need enter additional 4 PI-type transducer
p
arameters that describe the PI-t
yp
e transducers
M24
Window for selecting the transducer mounting methods
Four methods can be selected:
(0) V-method (1) Z-method (2) N-method (3) W-method
M25 Display the transducer mounting spacing or distance
M26
(1) A switch for the parameters in flash memory will be loaded when power is
turned on. The default option is that the parameters will be loaded. If this switch
is not turned on, the system will try to use the parameters in the system RAM, if
these parameters are ok, otherwise the system will load the parameters in
flash memor
y

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(2) Function to store the current parameters into the flash memory, so that these
parameters will be solidified and will be loaded as the default parameters every
time when
p
ower is turned on.
M27
Entry to store to or restore from the internal Flash memory, as many as 9 different
pipe parameter configurations
To save or load the current setup parameter, use the going up or going down keys
to change the address number, press ‘ENT’ key, and use going down or going up
ke
y
s to select to save to or load from the memor
y
.
M28 Entry to determine whether or not to hold (or to keep) the last good value when
p
oor si
g
nal condition occurs.
Y
ES is the default setu
p
.
M29
Entry to setup empty signal threshold. When the signal is less than this threshold,
the pipe is regarded as empty pipe, and the flow meter will not totalize flow.
This is based on the fact that, for most occasions, when pipe is empty, the
transducer would still receive signal, just smaller than normal, As a result, The flow
meter would show normal operation, which is not correct.
Make sure that the entered value must be less than the normal signal strength.
When much noisy signals are received, to make sure the flow meter will not
incorrectl
y
totalize flow, there is also a ‘Q’ threshold should be entered in M.5
M30 Window for selecting unit system. The conversion English to Metric or vice versa will
not affect the unit for totalizers.
M31
Window for selecting flow rate unit system.
Flow rate can be in
0. Cubic meter short for (m
3)
1. Liter (l)
2. USA gallon (gal)
3. Imperial Gallon (igl)
4. Million USA gallon (mgl)
5. Cubic feet (cf)
6. USA liquid barrel (bal)
7. Oil barrel (ob)
The flow unit in terms of time can be per day, per hour, per minute or per second.
So there are 32 different flow rate units in total for selection.
M32 Window for selecting the totalizers unit. Available units are the same as those in
M31
M33 Window for setting the totalizer multiplying factor
The multiplying factor ranges from 0.001 to 10000. Factory default is 1
M34 Turn on or turn off the NET totalizer
M35 Turn on or turn off the POS (positive) totalizer
M36
T
urn on or turn off the NEG
(
ne
g
ative
)
totalizer
M37
(1) Totalizer reset
(2) Restore the factory default settings parameters. Press the dot key followed by
the backspace key. Attention, It is recommended to make note on the parameters
before doin
g
the restoration
M38 Manual totalizer used for easier calibration. Press a key to start and press a key to

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sto
p
the manual totalizer.
M39
Interface Language selection.
The selection could also be changed automatically by the system, if English LCD
dis
p
la
y
is used as the dis
p
la
y
device.
M3.
Setup for local segmental LCD display. Enter 0 or 1 for the non-auto-scan mode;
Enter 2~39 for the auto-scan mode. In the auto-scan mode the display will
automatically scan displaying from 00 to the entered number of the local segmental
LCD dis
p
la
y
.
M40
Flow rate damper for a stable value. The damping parameter ranges form 0 to 999
seconds.
0 means there is no damping. Factory default is 10 seconds
M41 Low flow rate (or zero flow rate) cut-off to avoid invalid accumulation.
M42 Zero calibration/Zero point setup. Make sure the liquid in the pipe is not running
while doin
g
the setu
p
.
M43 Clear the zero
p
oint value, and restore the solidified zero
p
oint value.
M44 Set u
p
a flow bias. Generall
y
this value should be 0.
M45 Flow rate scale factor. The default value is ‘1’.
Keep this value as ‘1’, when no calibration has been made.
M46
Networks address identification number. Any integer can be entered except
13(0DH, carriage return), 10 (0AH, line feeding), 42 (2AH), 38, 65535.
Every set of the instrument in a network environment should have a unique IDN.
Please refer to the cha
p
ter for communication.
M47
System locker to avoid modification of the system parameters.
If password is forgotten, you could send a command ‘LOCK0’ to the serial input to
unlock. Or
y
ou can write 0 to REGISTER49-50 under MODBUS
p
rotocol.
M48
Entry to linearity correcting data inputs. By using of this function, the non-linearity
of flow meter will be corrected. Correcting data shall be obtained by careful
calibration.
M49 Displays the input contents for the serial port.
B
y
checkin
g
the dis
p
la
y
s,
y
ou can know if the communication is ok.
M50
Switches for the built-in data logger. There are as many as 22 different items can be
chosen. To turn this function, select ‘YES’ the system will ask for selecting the items.
T
here are 22 items available. Turn on all those items
y
ou want to out
p
ut
M51
Window to setup the time of scheduled output function (data logger, or
Thermo-printer). This includes start time, time interval and how many times of
output. When a number great than 8000 entered for the times of output, It means
the output will be keeping always. The minimum time interval is 1 second and the
maximum is 24 hours.
M52
Data logging direction control.
(1) If ‘Send to RS485’ is selected, all the data produced by the data logger will be
transmitted out through the RS-232/RS485 interface
(2) If ‘To the internal serial BUS is selected, the data will be transmitted to the
internal serial bus which allows a thermal printer, or a 4-20mA analog output
module, to be connected to it.
M53 Display analog inputs, AI5, current value and its corresponding temperature or
p
ressure or li
q
uid level value.
M54 Pulse width setup for the OCT (OCT1) output. Minimum is 6 mS, maximum is 1000
mS

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17
M55
Select analog output (4-20mA current loop, or CL) mode. Available options:
(0) 4-20mA output mode (setup the output range from 4-20mA)
(1) 0-20mA output mode (setup the output range from 4-20mA, This mode can only
be used with Version-15 flow meter)
(2) Serial port controls 0-20mA
(3) 4-20mA corresponding fluid sound speed
(4) 20-4-20mA mode
(5) 0-4-20mA mode (can only be used with Version-15 flow meter)
(6)20-0-20mA mode(can only be used with Version-15 flow meter)
(7) 4-20mA corresponding flow velocity
(
8
)
4-20mA corres
p
ondin
g
heat flow rate
M56
4mA or 0mA output value,
Set the value which corresponds to 4mA or 0mA output current (4mA or 0mA is
determined b
y
the settin
g
in M55
)
M57 20mA output value,
Set the value which corresponds to 20mA output current
M58 Current loop verification
Check if the current loo
p
is calibrated correctl
y
.
M59 Display the present output current of current loop circuit.
M60 Setup system date and time. Press ENT for modification. Use the dot key to skip the
di
g
its that need no modification.
M61
Display Version information and Electronic Serial Number (ESN) that is unique for
each flow meter.
T
he users ma
y
em
p
lo
y
the ESN for instrumentation mana
g
ement
M62
RS-232/RS485 setup. All the devices connected with flow meter should have
matched serial configuration.
The following parameters can be configured: Baud rate (300 to 19200 bps), parity,
data bits
(
alwa
y
s is 8
)
, sto
p
bits
M63
Select communication protocol.
Factory default is ‘MODBUS ASCII. this is a mode for MODBUS-ASCII, Meter-BUS,
Fuji Extended Protocol
If
y
ou are
g
oin
g
usin
g
MODBUS-RTU
y
ou have to select ‘MODBUS_RTU’.
M64
AI3 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and
20mA input current. The display values have no unit, so that they can present any
p
h
y
sical
p
arameter.
M65
AI4 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and
20mA in
p
ut current.
M66
AI5 value range.
Used to enter temperature/pressure values that are corresponding to 4mA and
20mA in
p
ut current.
M67
Windows to setup the frequency range (lower and upper limit) for the frequency
output function. Valid range is 0Hz-9999Hz. Factory default value is 0-1000 Hz.
For Version-12, Version-13, Version-14 flow meters, you need a hardware module,
which shall be
p
lu
gg
ed to the Serial Ex
p
andin
g
Bus, for the fre
q
uenc
y
out
p
ut

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18
function. Please remember to order the module if you need frequency output
function.
For Version-15 flow meter, you need to indicate on your orders that you need the
frequency function; Otherwise you will get a flow meter which has no frequency
out
p
ut circuits.
M68 Window to setup the minimum flow rate value which corresponds to the lower
fre
q
uenc
y
limit of the fre
q
uenc
y
out
p
ut.
M69 Windows to setup the maximum flow Rate value that corresponds to the upper
fre
q
uenc
y
limit of the fre
q
uenc
y
out
p
ut.
M70
LCD display backlight control. The entered value indicates how many seconds the
backlight will be on with every key pressing. If the enter value is great than 50000
seconds, It means that the backli
g
ht will alwa
y
s kee
p
in
g
on.
M71 LCD contrast control. The LCD will become darker or brighter when a value is
entered.
M72 Working timer. It can be cleared by pressing ENT key, and then select YES.
M73 Window to setup the lower limit of flow rate for Alarm#1.
When the flow rate is below the set value, Alarm#1 e
q
uals ‘on
’
M74
Window to setup the upper limit of flow rate for Alarm#1.
When the flow rate is above the set value, Alarm#1 equals ‘on’
There are two alarms in the flow meter, and every alarm can be pointed to alarm
output devices such as the BUZZER or OCT output or RELAY output. For example, if
you want the Alarm#1 is to output by the OCT circuit, you need to set M78 at
selection item 6.
M75 Window to setup the lower limit of flow rate for Alarm#2.
M76 Window to setup the upper limit of flow rate for Alarm#2.
M77
Buzzer setup.
If a proper input source is selected, the buzzer will beep when the trigger event
occurs. The available trigger sources are:
0. No Signal 1. Poor Signal
2. Not Ready (No*R) 3. Reverse Flow 4. AO Over 100%
5. FO Over 120% 6. Alarm #1 7. Reverse Alarm #2
8. Batch Control 9. POS Int Pulse 10.NEG Int Pulse
11.NET Int Pulse 12.Energy POS Pulse 13.Energy NEG Pulse
14.Energy NET Pulse 15.MediaVel=>Thresh 16.MediaVelo<Thresh
17.ON/OFF viaRS232 18.Daily Timer (M51) 19.Timed alarm #1
20. Timed alarm #2 21.Batch Totalizer Full 22. M51 Timer
23. Ke
y
Strokin
g
ON 24.Disable BEEPER
M78
OCT (Open Collect Transistor Output)/OCT1 setup
By selecting a proper input source, the OCT circuit will close when the trigger event
occurs. The available trigger sources are:
0. No Signal 1. Poor Signal
2. Not Ready(No*R) 3. Reverse Flow 4. AO Over 100%
5. FO Over 120% 6. Alarm #1 7. Reverse Alarm #2
8. Batch Control 9. POS Int Pulse 10.NEG Int Pulse
11.NET Int Pulse 12.Ener
gy
POS Pulse 13.Ener
gy
NEG Pulse

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14.Energy NET Pulse 15.MediaVel=>Thresh 16.MediaVelo<Thresh
17.ON/OFF viaRS232 18. Daily Timer (M51) 19.Timed alarm #1
20. Timed alarm #2 21.Batch Totalizer Full
22. Periodically M51 Timer 23. Oct Not Using
The OCT circuit does not source voltage at its output. It must be connected with an
external power and pull-up resistant for some occasions.
When the OCT circuit is close, it will draw current. The maximum current shall not
be over 100mA.
Attention: the maximum voltage applied to OCT can not be over 80 volts.
M79
Relay or OCT2 setup
By selecting a proper input source, the RELAY will close when the trigger event
occurs
The available trigger sources are:
0. No Signal 1. Poor Signal
2. Not Ready(No*R) 3. Reverse Flow 4. AO Over 100%
5. FO Over 120% 6. Alarm #1 7. Reverse Alarm #2
8. Batch Control 9. POS Int Pulse 10.NEG Int Pulse
11.NET Int Pulse 12.Energy POS Pulse 13.Energy NEG Pulse
14.Energy NET Pulse 15.MediaVel=>Thresh 16.MediaVelo<Thresh
17.ON/OFF viaRS232 18. Timer (M51 Daily) 19.Timed alarm #1
20. Timed alarm #2 21.Batch Totalizer Full
22. Periodically M51 Timer 23. Disable Relay
The RELAY is of SPST(Single pole, single throw) type. It is rated for 110VAC max
and have a current rating of 0.5A resistive load.
It highly recommended that a salve relay to be utilized whenever a large resistive
load or inductive load is to be controlled.
Note. In order to make the user interface compatible with the former version7, the
name RELAY was used other than OCT2, but in fact it is an OCT out
p
ut.
M80
Window for selecting the trig signal for the built-in batch controller. Available trig
sources:
0. Key input (press ENT key to start the batch controller)
1. Serial port
2. AI3 rising edge (when AI3 receives 2mA or more current)
3. AI3 falling edge (when AI3 stop receiving 2mA or more current)
4. AI4 rising edge (when AI3 receives 2mA or more current)
5. AI4 falling edge (when AI3 stop receiving 2mA or more current)
6. AI5 rising edge (when AI3 receives 2mA or more current)
7. AI5 falling edge (when AI3 stop receiving 2mA or more current)
8.Timer periodically (define the start time and interval time in M51)
9.Timer daily (define the start time and interval time in M51)
For the input analog current signal, 0 mA indicates “0”, 4mA or more indicates ‘1’.
By selecting item #8, the batch totalizer can be started periodically by the internal
timer located at Menu51. When the batch totalizer is full, a signal which indicate the
batch is full can be direct to either the OCT or the RELAY terminals to stop the pump
or other devices.

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20
By selecting item #9, the batch totalizer could act as totalizer witch runs for only a
period of the day so that a alarm signal could be produced if the total flow during
that time period is over a certain amount of. For example, if you want a alarm signal
which stand for the total flow is over 100 cubic meters during the period of every
day from 20:00 to 06:00, setups is like
M51 start time =20:00:00
M51 interval =10:00:00
M51 log times =9999 (means always)
M80 select item #9
M81 in
p
ut 100
(
Unit is defined in M30,M31,M32
)
M81
The built-in batch controller
Set the flow batch value(dose)
The internal output of the batch controller can be directed either to the OCT or the
RELAY output circuits.
M81 and M80 should be used together to configure the batch controller.
Note: Because the measuring period is 500mS, the flow for every dos should be
kee
p
in
g
at 60 seconds lon
g
to
g
et a 1% dose accurac
y
.
M82
View the daily, monthly and yearly flow totalizer and thermal energy totalizer value.
The totalizer values and errors for the last 64 days, 32 last 32 months and last 2
years are stored in the RAM memory, To view them, use the ‘ENT’ and ‘UP’ ‘Down’
ke
y
s.
M83
Automatic Amending Function for automatic offline compensation.
Select ‘YES’ to enable this function, select ‘NO’ to disable it.
When the function is enabled, The flow meter will estimate the average flow
uncounted (or ‘lost’) during the offline session and add the result to the totalizer.
The estimation of the uncounted flow is made by computing the product of the
offline time period and the average flow rate, which is the average of the flow rate
before
g
oin
g
offline and the one after
g
oin
g
on line.
M84 Set the thermal energy unit:
0. GJ 1. KC 2.KWh 3. BTU
M85
Select temperature sources
0. from T1,T2 (factory default)
1. from AI3,AI4
M86
Select the Specific Heat Value.
Factory default is ‘GB’. Under this setting, the flow meter will calculate the enthalpy
of water based on the international standard.
If the fluid is other than water, you should select option ‘1. Fixed Specific Heat’, and
enter the s
p
ecific heat value of the fluid.
M87 Turn on or turn off the Energy totalizer.
M88 Select thermal energy totalizer multiplying factor.
Factor
y
default is ‘1’.
M89 1. Display the temperature difference
2. Window for enterin
g
the lowest tem
p
erature difference.
M90
Display signal strengths S (one for upstream and one for downstream), and signal
quality Q value.
Signal strength is presented by 00.0 to 99.9, the bigger the value, the bigger the