Toshiba LF810 Operational manual

0
PRODUCT DATA SHEET
Stationary Ultrasonic Flowmeter
LF810
TOSHIBA INTERNATIONAL CORPORATION

1.
O
1) Tran
s
and
u
2) Reg
a
flow
m
wate
r
3)
Tran
s
the o
nece
s
flow
f
no p
r
4) Flow
over
a
+30
m
5) Econ
flow
f
(24”)
6) Easy
confi
g
grap
h
simpl
input
2. F
e
1) Gra
p
Thro
u
Mou
n
para
m
2) Em
e
1 mi
n
auto
m
ATot
a
O
utline
s
it times of
u
u
ltrasonic fl
o
a
rdless of w
h
m
eters can
m
r
, agricultur
a
s
ducers are
utside of th
e
s
sary to cut
f
or installati
o
r
essure loss
measurem
e
a
wide rang
m
/s.
omical mea
f
rom 25mm
can be obt
a
Operation
t
g
uration sof
t
h
ical user in
t
e and usef
u
all data.
e
ature
s
p
hical PC c
o
u
gh EZ-wiz
a
n
ting positio
n
m
eters auto
m
e
rgency Re
d
n
ute interval
m
atically wit
h
a
l of 64000
u
ltrasonic p
u
o
wmeters ut
h
ether the li
q
m
easure va
r
a
l water, wa
s
clamped o
n
e
pipe so it i
s
pipes or st
o
o
n and ther
e
.
e
nts are po
s
e, -30m/s t
o
surements
o
(1”) to 600
m
a
ined.
t
hrough PC
t
ware. Thro
u
t
erface, it is
u
l for everyo
s
o
nfigurati
o
a
rd, all requi
r
n
of transduc
m
atically.
d
undancy
S
for 1-mont
h
h
all events
d
points data
u
lses trans
m
ilize this ch
a
q
uid is elec
t
r
ious types
o
s
tewater, s
e
n
to
s
not
o
p
e
is
s
sible
o
o
f
m
m
u
gh
very
ne to
o
n ‘’EZ-wiz
a
r
ed paramet
e
ers will be c
a
S
ystem (Au
h
of data will
d
ata.
logging cap
m
itted in a li
q
a
racteristic t
t
rically cond
u
o
f liquids su
c
e
awater, an
d
a
rd’’
e
rs can be in
a
lculated by
tomatic Lo
be logged
i
ability.
q
uid vary wi
t
o measure
f
u
ctive or no
c
h as potab
l
d
pure water
put.
input
gging Syst
i
nternally a
n
t
h the flow v
f
low.
n-conductiv
l
e water, riv
e
.
em)
n
d
elocity of th
e
e, ultrasoni
c
e
r water, in
d
1
e
liquid
c
d
ustrial

2
3) Echo-wave monitor
Receiving echo will be indicated on the PC configuration software.
This feature helps to identify ideal mounting positions of transducers.
4) Variety I/O port
Analog output (Std.), Totalizing output (Std.), Digital port (Std.),
and Digital port / RS-485 MODBUS (Option) are available.
5) Extra A-IN available
By using optional card, 1 port for passive analog input (option)
can be available.
This information will be stored as internal logged data automatically.
6) Site Check mode
Any Error will be indicated on the LCD without PC or any software.
7) EZ-Translation
Any languages are configurable on the PC locally.
3. Configuration
Flowmeter components
Component Model Quantity Description
1. Main unit LF810 1 pc Flowmeter main unit
2.Transducers 1MHzTransducer
for 1” – 24” Pipe 2 pcs Ultrasonic transmit and receiving
transducers and pipe-mounting fixtures
for transducer
3. Coaxial cables (*) RG-223/U 2 pcs Connection cable between converter and transducers (includes 33ft.of cable)
(max. cable length: 30m)

3
1MHz transducer components are as follows.
Components Quantity Material Weight
(approx.)
1. Transducer 1pair (2pcs) Case : PBT (Plastic) 180g / 2pcs
2. Holder 2pcs PBT (Plastic) 160g / pc
3. Fastening Fixture 10pcs SUS304 20g / pc
4. Stainless Band 15 m SUS430 24g / m
5. Clamp 2sets SUS304 55g / set
6. Thumb Screw (for Z-method) 4pcs SUS303 16g / pc
7. Installation Outfit 1set
(30m or less)
Flowmeter cabinet (Pit)
Pipe
Valve
Note: Contact the manufacturer if a pump, valve, pipe with gradual width
increment, or merger pipe is installed at either the upstream or
downstreamside.
Power source
Output signal
Conduit pipe ( size
22)
Coaxial cable
Cable trough
(inner diameter = D)
Pump outlet
Pump
Transduce
r
Cable connection
Flow
(90 bend
)
5D or more
Enough length for fully developed
rotationally symmetrical flow profile required.
(Note)
(Note)
Pump
Main unit

4
4. Specifications
4-1. Overall Specifications
Measurement Fluids Homogeneous and ultrasonically conductive fluids
(Clean water, waste water, industrial water, river water, sea
water, pure water, etc.)
Temperature range -4 to 140°F (-20 to 60°C)
Note:
1) above also applicable to ambient temperature
2) For main unit, 14 to 122°F (-10 to 50°C)
Turbidity 10000 mg/L or less
Note) No air bubbles
Pipes
Material Pipes made of materials that allow stable transmission of
ultrasonic waves, such as steel, stainless steel, cast iron,
ductile cast iron, PVC, FRPM, etc.
Note) Applicable pipe bores may vary depending on the pipe material
and condition.
Diameters 1” – 24” (DN25mm to DN600mm)
Lining None, tar epoxy, mortar, etc.
Note) Linings must be closely adhered to the base pipe.
Measurement
range
Converted to flow velocity: -30 m/s to +30 m/s
Number of
measurement
paths
1 measurement path
Measurement
cycle
1 s
Measurement
Performance
1”-1.75”
(DN 25 ~ 40mm)
±2.5%(*) of reading, however ±0.025(*) m/s for flow
velocities less than 1 m/s
(*) Depending on calibration
2” – 3.5”
(DN 50 ~ 90mm)
±2.0% of reading, however ±0.020 m/s for flow velocities
less than 1 m/s
4” – 10”
(DN 100 ~ 250mm)
±1.5% of reading, however ±0.015 m/s for flow velocities
less than 1 m/s
12” – 24”
(DN 300 ~ 600mm)
±1.0% of reading, however ±0.010 m/s for flow velocities
less than 1 m/s
Repeatability ±0.5%
Range ability 1 : 300
Note:
1) For volumetric flow rate.
2) Fully developed and rotationally symmetrical flow profile required.
3) Verified by manufacturer's conditions.
Measurement
method Ultrasonic pulse transit time difference method
European
compliance
(CE marking)
Safety: IEC61010-1 2nd Edition
EMC: EN61326-1:2006 + EN61326-2-3:2006
.

5
4-2. Main Unit
Analog
output
Std / Option Standard
Number of
channels 1
Output contents Instantaneous flow rate
Output pattern Single system
Output format
4 – 20mA, Burnout 20.8mA (when “no echo received” or during
“failure warning” output available)
Max. allowable load resistance 600ohm
Insulated outputs, 10-bit equivalent accuracy
Update cycle 125ms (8Hz)
Terminal panel Screw less Terminal (0.08~2.5mm2cable applicable)
Contact
point output
Std / Option Standard
Number of
channels 1
Output
Selectable from:
1. Forward flow totalized pulse
2. Backward flow totalized pulse
3. No echo received warning (ROFF)
4. Equipment failure warning
5. No echo received warning or Equipment failure
6. Hi-Limit alarm
7. Lo-Limit alarm
8. Forward flow identification
9. Always open
10. Always closed
Pulse Width
Pulse width of contact is selectable from 1000,500,100 or 20ms.
Note:
1) But not for both forward and backward.
Output format Photo coupler (insulated)
Contact point
capacity DC48V, 0.4A
Terminal panel Screw less Terminal (0.08~2.5mm2cable applicable)
USB
communication
Std / Option Standard
Number of
channels 1
USB Cable
length Up to 3m
Functions
Flowmeter programming, measurement value display, received
signal waveform display, and log data readout using dedicated
software*1
*1 Compatible with Windows 7, Vista and XP
Connector USB-B terminal, hot plug possible

6
RS-485
communication
Std / Option Option
Number of
channels 1
Output format RS-485 (insulated type)
Protocol MODBUS-RTU compatible
Transmission
Length Up to 1km (depending on cable and communication speed)
Data
Forward flow totalized value, backward flow totalized value,
instantaneous flow rate, instantaneous flow velocity, equipment
status, etc.
Baud rate 4800, 9600, 19200, 38400 bps (Selectable)
Parity None, Even, Odd (Selectable)
Data bit length 8 bit /1 stop bit
Terminal panel Screw less Terminal (0.08～2.5mm²)
Analog input Std / Option Option
Number of
channels 1
Output format Insulated inputs, passive method
Input range 4-20mA
Input resistance 300 Ohm or less
Accuracy 8-bit equivalent
Sampling cycle 1 s
Input contents Selectable from current ratio (%) or current value (mA)
Terminal panel Screw less Terminal (0.08～2.5mm²)
Log function Std / Option Standard
Contents
Log contents: Date and time, instantaneous flow rate,
instantaneous flow velocity, forward flow totalized value,
backward flow totalized value, analog input value, measurement
status, error status
Number of
log entries 68000 entries
Log method Ring buffer method
Log cycle
Initial value: 60 s, setting range: 0 to 3600 s
1.5 months or more at a 60 s cycle (60 entries x 24 hours x 45
days = 64800 data)
1 year or more at a 600 s cycle
Data retrieval USB communication using dedicated software “UFW Config”
or MODBUS communication (option)
Data retention
Data is held for approximately 5 years in the power OFF status.
*1
The battery can be replaced.
*1 When the internal lithium battery is fully charged.
Data setting Setting method LCD 4-keys entry or USB communication setting through PC
with dedicated software “UFW Config”

7
Display Display method LCD (16 character x 2 lines), with backlight
Display content
The following items displayed in the upper and lower lines on LCD
can be selected.
• Instantaneous flow rate and units
• Instantaneous flow velocity value and units
• Forward flow totalized value and units
• Backward flow totalized value and units
• Error code
• Status (Out of full scale, No receiving echo warning, Disturbance
detected, Signal Saturation, Check mode and
Low battery)
• Analog input value (*Option)
• ROFF counter value
• DIS. counter value
• Upside gain amplitude
• Downside gain amplitude
• Date & Time
Display digits
Instantaneous
flow rate : Max. 7 digits including sign and decimal point
Instantaneous
flow velocity :
sign section 1 digit, integer section 2 digits
and decimal fraction 3 digits fixed
Totalized flow : Totalized flow 8 digits including decimal point
Warnings
Symbols are displayed at the right side of the LCD.
• “R”: No echo signal received. (upper line of the LCD)
• “D”: Disturbance detected. (upper line of the LCD)
• “S”: Receiving echo signal saturated. (upper line of the LCD)
• “C”: CHECK function is active. (upper line of the LCD)
• “B”: Low voltage of coin battery (lower line of the LCD)
• “E”: Error occurred by equipment failure. (upper line of the LCD)
• “F.S.”: Full Scale (Upper line of the LCD)
(During exceeding the maximum flow rate of measurement range,
indication would be alternated flickering “the maximum value of
measurement range” and “F.S." symbol at the upper & left side of LCD.)
Note:
1) The priority between the above symbols (indicated at the same position) as follows.
E > C > R > D > S
Error code “ERR-01” to “ERR-63” displayed during equipment failure.
Units
Flow rate units
• Multiplier
u (x10-6), m (x10-3), x1, k (x103), M (x106)
• Flow volume units
L/, m3/, g/, t/, ft3/, bbl/, gal/, acf/
• Flow time units
/s, /min, /h, /D
Totalizing units
• Multiplier
u (x10-6), m (x10-3), x1, k (x103), M (x106)
• Decimal point position
******* (x1), ******.* (x0.1), *****.** (x0.01)
• Units
L, m3, g, t, ft3, bbl, gal, acf

8
Function
Low flow cut
Cuts (Zeros) flow when flow falls below prescribed instantaneous
flow rate. Used in order to avoid output of flow values other than 0
when measurement value during still flow becomes irratic.
No Echo receiving
warning
If measurement cannot be made when no echo is received
continuously over the setting time (determined transition time), status is
changed to
-Display "R" on LCD.
-Selected output operation (Analog & LCD)
-Contact output of warning if set.
-Count up as history on ROFF counter
Disturbance
detection
Check whether processing values are measured properly or not
and if determined to be disturbed conditions then measuring
values are eliminated.
- Display ”D” on the display
- Count up as history on DIS. counter
Zero point
correction
Zero point can be independently compensated (shifted) for flow
rate.
Span correction Slope of span line can be corrected for flow rate.
Output Filter
Rapid flow rate changes would be smoother by this filter.
Note: This value is meaning the time until measuring flow rate reaches 90%
by step-up increment.
Self-diagnostics
and
failure processing
If failure is diagnosed on following items, transitions to be
selected status.
Diagnostic checks:
1) Transmitting and receiving circuit
2) CPU
3) DSP
4) Internal clock
5) Memory Area (for setting parameter)
6) Parameters
- Selected analog output transition status as follows.
0% (4mA), hold, 100% (20mA), burnout (20.8mA)
- Display "ERR-**" on LCD. (** is error number.)
- Contact output of warning if set.
Data retention
Totalized flow values and all setting parameters are retained in
memory with lithium battery even if power failure.
Note:
1) Setting Parameters are retained in nonvolatile memory.
2) Totalized flow value, Logged data and ROFF/DIS. counters are retained in
memory which held by the battery.
3) Data retained in memory which held by the battery clears if battery
removed without power supply.
4) 5 year life at room temperature.
5) No battery recharging function.
Check Function
-Simulated flow check mode
-Analog output check mode
-Totalized pulse output check mode

9
Function
(cont.)
Automatic gain
control
(AGC Function)
Receiver gain is automatically adjusted to the optimum level in
response to changes in receiver sensitivity during measurement.
Totalized value
preset
Totalized values can be freely preset.
Preset Range: 0 to 99999999
Error historic
counter
Count "No Echo receiving warning" & "Disturbance detection"
when it occurred.
Power
supply
AC100 to 230V +/-10% (50/60 Hz ±2Hz)
Option: DC24V±20% (This option must be pre-selected.)
Momentary outage AC input: 20ms
DC input: 0ms
Power
consumption
AC100V: 19VA / AC200V: 23VA
DC24V: 9W (Option)
Fuse AC: IEC 60127-2 SS5
Cartridge fuse-links, φ5.2x20 mm, Rating 2A/250V, Time-lag
and High Breaking Capacity (1500A)
DC: IEC 60127-2 SS5
Cartridge fuse-links, φ5.2x20 mm, Rating 4A/250V, Time-lag
and High Breaking Capacity (1500A)
Rush
Current
Less than 15A at AC100V / Less than 25A at AC200V
Less than 15A at DC24V (Option)
Operating
temperature
range
14 to 122°F (-10 to +50°C)
Storage
temperature
range
-4 to 140°F (-20 to +60°C)
Operating
humidity range Less than 90% RH, non-condensation
Main unit
construction Protection Degree IP65 (IEC 60529)
Wiring
Connection
port
I/O and power ports: PG13.5 x 3, applicable cable diameter 7 to 12.5 mm
Sensor ports: PG9 x 2, applicable cable diameter 4.5 to 8 mm
Other: USB-B female type for USB communication x 1
Case
material ABS (Color: White gray)
Weight Approximately 5 lbs. (2.1 kg)
Dimensions 210mm (W) x 210mm (H) x 100mm (D), not including protrusions
European
Compliance
(CE marking)
EMC Directive 2004/108/EC
Harmonized Standard / EN61326-1:2006 + EN 61326-2-3:2006
Separation into group / Group I
Division into classes / Class A
Location intended for use / In industrial locations
Low Voltage Directive 2006/95/EC
Harmonized Standard / EN61010-1 2nd Edition
Over voltage category II
Pollution degree II
Altitude up to 2000m

10
4-3. Tran
s
Transduc
e
Te m pe r at
u
range
Protectio
n
class
Compatib
cable
Maximum
length
4-4. Opti
o
IP67 dete
c
Power ca
b
(*1)
Mounting
Expansio
n
board
AIN-10 (*
2
Expansio
n
board
485-20 (*
2
(*1)Power
c
(*2)Expan
s
5. Ana
l
s
ducers
er
SE
u
re
-4
t
n
IP
6
IP
6
le
R
G
cable
30
o
nal part
s
c
to
r
Shi
b
le St'
s
Mo
Pa
r
Ma
De
t
plate Fo
r
Co
n
Mo
n
2
)
An
a
n
2
)
Di
g
Ins
c
able is sp
e
s
ion boards
c
l
og out
p
104720T
t
o 140°F (-2
0
6
5 (When fill
6
7 as an opt
G
-223/U
m
s
pped from t
s
/option
del name
r
t numbe
r
nufacture
r
t
ails
r
wall moun
t
n
sist of:
unting plat
e
a
log input: I
n
g
ital commu
n
ulated RS-
4
cified to co
m
c
an be mou
p
ut pro
f
0
to 60°C)
ed with resi
n
ion (Resin-f
i
he factory
w
Prep
a
OLF
L
multi
-
1006
LAP
P
3 co
n
AW
G
Nom
t
ing or stan
d
e
, U bolt, Wi
n
n
sulated pa
s
n
ication fun
c
4
85, MODB
U
m
ply with E
C
nted simult
a
f
iles
n
by the ins
t
i
lled produc
t
w
ith a 30 m
c
a
red by use
L
EX Classi
c
-
conductor,
0
P
KABEL
n
ductors
G
16, 1.5 mm
i
nal outer di
d
ard pipe (D
n
g nut, Spri
n
s
sive input
t
c
tions
U
S-RTU co
m
C
directive.
a
neously.
Fl
o
t
aller)
t
, shipped
w
c
able conn
e
r
c
100
flexible po
w
2
ameter 8.1
m
N50mm) m
o
n
g washer,
F
t
ype
m
patible
o
w Rate
w
ith cable c
o
e
cted
w
er and con
t
m
m
o
unting (Fig
F
lat washer,
o
nnected)
t
rol cable
. 1-2-3-3)
screw M4.

11
6. Transducer installation
- To minimize measurement errors arising from flow profile, a straight pipe run is necessary for
transducer installation.
- Liquid should fill the pipes completely and transducers should be installed in locations which
have no air bubbles.
- For measurements in underground piping, the usual means is to locate the flowmeter in a pit to
facilitate transducer installation, maintenance, and testing.
L≧10D
10D
or
more
Probe
L≧5D
10D
or more
L≧50D
10D
L≧10D
L≧30D
D
0.5D
1.5D
L≧5D
L≧5D
L≧10D
L≧30D
Flow Control at upper side
L≧10D
ＰL≧50D
Upstream straight pipe length Downstream straight pipe length
Structural
condition
90°bend
T shape joint
Increasing
Diameter
Control
Valves
Pump
[Refer to JEMIS 032- 1987 ]
Reducing
Diameter
Flow Control at lower side
Stop Valve
Checkvalve
D : Pipe Diameter

12
7.Di
m
m
ensio
n
n
s
M
M
ain Unit
D
T
D
imension
T
ransducer

13
Mo
u
Mountin
g
u
ntin
g
Fixt
Fixture fo
r
ure for Tr
a
r
Transduc
a
nsducer
er (Z met
h
h
od)

14
8. W
i
8-1. Ou
t
8-2. Ca
b
i
ring C
o
t
put conne
c
b
le entry p
o
Bottom v
i
o
nnecti
o
c
tion
o
rt
i
ew of mai
o
n
n unit cas
e
C
a
Ca
b
e
C
USB-B
c
a
ble
g
land
b
le
g
land
(
Cab
C
able
g
lan
d
c
onnector
j
(
Down-sid
(
Up-side tr
le
g
land (
p
d
s (I/O)
ack
e transdu
c
ansducer)
p
ower sup
p
c
er
)
p
ly)

15
9. System Wiring Connection

16
10. Building a flowmeter pit
Manhole
G.L. G.L.
Pipe Dia. (d)
>300mm >300mm
>2000mm
Transducer
s
V path method: d+1200mm
Z path method: d/2+1200mm
Stainless Steel Band
Water drainage 500×500×d300
Pipe Dia (d)>600mm >600mm
Coaxial cable
Flowmeter Pit
300mm
Fastening
Fixture
Foot Step
- In principle, when measurement is of underground pipe, it is suggested to prepare dedicated
flowmeter pit.
- It is not necessary to prepare a flowmeter pit in the case of indoor or outdoor piping, but proper footing
should be planned for transducer mounting and equipment adjustments where the pipe is located
high off the floor or when pipe diameter is large.
Building a flowmeter pit
1. Select pit site (taking into consideration the following points)
1) Straight section of pipe is required for installation of transducers as explained under Part 5.
2) Consult manufacturer if an adjustable valve or pump is used.
3) To prevent noise interference or signal attenuation, coaxial cable used transducers and main
unit should be less than 30m.
2. Size and construction of flowmeter pit
1) Using above schematic as reference, determine size of flowmeter pit based on actual piping
position and conditions. Height of pit should allow person to stand while working.
2) Implement countermeasures for floods such as drainage gutters, etc. (Install water pump where
water is liable to accumulate or flood.)
3) Consult Manufacturer for other specific conditions. (Above dimensions are ideal and not the
minimum required.)
Transducer installation
1. Strip paint/coating from piping surfaces at transducer mounting locations and fix transducers
on piping using the accessory mounting fixtures. When mounting transducers according to the
“V” method, the distance separating the transducers should be about the diameter of the pipe.
If the “Z” method is used, the distance should be one half of the diameter.
2. After installing and adjusting the transducers, remove transducer mountings, and coat pipe
surface with anti-rust paint.

11. A
p
Flo
w
p
pendi
x
w
Volume a
n
x
n
d Average
F
F
low Velocity
Averag
e
e
Flow Velocity (m/s)
17

18
Specification Code
Model number table
Model number Specification
code
Contents
1 2 3 4 5 6 7 8 9
L F 8 1 0
ULTRASONIC FLOWMETER
A
D
Powe
r
supply
100-230Vac,50/60Hz
24Vdc±20%
A
B
Transducers Type
Standard (requires connecting to cables)
Factory epoxy potting (Meets IP67, includes connecting cables
to transducers only)
0
1
2
3
I/O card
No need
Rs-485 Modbus Communication Card
Analog Input Card(1ch)
Both of RS-485 Modbus and Analog Input
B
Mounting
f
or Main unit
Mounting plate (wall, surface or stand pipe)

Note:
All I/O options must be selected at time of ordering.
All units come with stainless steel mounting plate.
・Coaxial cables
Code Contents
1 2 3 4 5 6
C C L 0 Len
g
th ※1
0
0
1
1
2
2
3
0
5
0
5
0
5
0
Without cable
5m
10m
15m
20m
25m
30m
※ 1 All Meters are shipped from the factory with two (2) 10 m cables.

19
INDUSTRIAL DIVISION
13131 WEST LITTLE YORK ROAD HOUSTON, TX 77041
PHONE: [phone] [phone]
FACSIMILE: [phone]
EMAIL: [email protected]
www.toshiba.com/ind