Toshiba Automobile Parts LF470 User Manual

LF470/LF622  
2.5,4,6mm (1/10",1/6”,1/4")  
Field Intelligent Device Series  
Electromagnetic Flowmeter  
Introduction  
The electromagnetic flowmeter uses Faraday’s Law of  
electromagnetic induction to measure the process flow.  
The device consists of two units: a detector, through  
which the fluid to be measured flows and in which  
low-level signals proportional to flow rates are  
obtained; and a converter, which supplies excitation  
current to the detector, and amplifies the signals from  
the detector and then processes and converts the  
signals into the 4–20 mA dc current signal. The LF470  
is a small meter size detector designed to measure a  
small amount of fluids containing substances such as  
chemicals.  
LF622  
LF470  
Figure2. Electromagnetic Flowmeter  
LF470/LF622  
The wetted materials for the LF470 are corrosion  
resistant ceramic and platinum electrodes and are  
applicable to almost any kind of fluids. The LF470 is a  
lightweight palm-sized detector.  
Combining with a LF622 multifunctional converter  
which has an improved noise-suppression circuit and  
advanced algorithms. The LF470 is highly resistant to  
noise and provides a stable output even for fluids  
containing slurries. IR (Infrared) switches enable  
parameter setting of the converter without removing  
the cover. Flow direction can be set in either way, and  
its unique 128 x 128 dot matrix LCD display allows  
the LCD to be rotated electronically to 90, 180 and 270  
degrees without opening the cover  
Certificationnumber  
Z01207  
Specifications  
Overall Specifications  
Measurement range in terms of flow velocity:  
0–0.3 m/s to 0–10 m/s. (0–1.0ft/s to 0–32.8ft/s).  
Accuracy: The overall accuracy combined with the  
The AF900 hand-held terminal (HART*1  
LF622 converter is shown in the following table.  
communicator) can be used to communicate with the  
flowmeter from a remote place. PROFIBUS-PA*2 or  
Modbus*3 interface is available as an option.  
Flow rate as a  
percent of range  
Accuracy  
0.3-1.0m/s  
1.0-10m/s  
(1.0-3.3ft/s)  
0.8% of FS  
0.8% of FS  
(3.3-32.8ft/s)  
50 100  
0.8% of rate  
~ %  
50  
~ %  
±
±
±
±
0
0.4% of FS  
*1: HARTprotocol (Highway Addressable Remote Transducer) is a  
communication protocol for industrial sensors recommended by the  
HCF (HARTCommunication Foundation).  
Note: The accuracy is measured under standard  
operating conditions at Toshiba's calibration facility.  
*2: PROFIBUS is the communication protocol for factory and process  
automation that the PROFIBUS Organization recommends. Instead of  
analog control with a conventional analog signal (4-20mA), it is  
fieldbus which digitizes all signals. Flowmeters support  
PROFIBUS-PA.  
Fluid conductivity: 50µS/cm minimum  
Fluid temperature:  
Pipe connection material Fluid temperature  
Stainless steel and other metals  
*3: Modbus is the communication protocol that Modicon Inc. developed.  
Physical layer is RS485.  
10 120  
- ℃~+ ℃  
(
)
14 to 248 F  
°
Polyvinyl chloride  
(shock-resistant)  
10  
60  
°
- ℃~+ ℃  
Fluid to be  
measured  
(14 to 140 F)  
Ambient temperature: –10 to +60 °C (14 to 140 °F)  
Powersupply  
Signalcable  
Structure: IP67  
Excitationcable  
Power consumption:  
4-20mA dc output  
andpulseoutput  
When combined with the LF622 converter:  
LF470  
LF622 Converter  
Detector  
Standard:10W(14VA)  
at AC100V and Excitation current:0.2A  
MAX:15W (22VA)  
Figure1. ConfigurationDiagram  
EJL-142A  
 
LF470/LF622  
Conditions when power fails: Parameter setting  
Communications output:  
HART(std.)  
values are stored in non-volatile memory and the  
values will be restored when the power returns to  
normal condition. The outputs and display will  
remain as follows when power fails.  
Digital signal is superimposed on 4–20mAdc  
current signal as follows:  
Conforms to HART protocol  
Load resistance: 240 to 750ꢀ  
Load capacitance: 0.25µF maximum  
Load inductance: 4mH maximum  
• PROFIBUS(opt.)  
Protocol : PROFIBUS-PA  
Baurate : 31.25kbps  
• Current output: 0mAdc  
• Digital output: OFF  
• LCD display: No display  
Power supply: One of the following can be selected:  
• 100 to 240Vac, 50/60Hz (std.)  
(allowable voltage 80 to 264Vac)  
• 24Vdc (allowable voltage 18 to 36Vdc)  
• 110Vdc (allowable voltage 90 to 130Vdc)  
Bus voltage : 9-30VDC  
Consumption electric current of bus:less than 16mA  
Manufacture Ident-No. : 093BHEX  
Standard Ident-No. : 9740HEX  
Surge protection: Arresters are installed in the  
power supply, and current signal output circuit.  
Slave address : 0-126 (Default address is 126)  
Profile : Profile Ver.3.01 for Process Control  
Devices  
Function blocks : AI(Flow)×1 , Totalizer×1  
• Modbus(opt.)  
Physical layer : RS485  
Protocol : Modbus  
Mode : RTU  
Baudrate : 4800, 9600, 19200bps  
Data length : 8bit  
Case: Aluminum alloy (equivalent of IP 67)  
Coating: Acrylic resin-baked coating, pearl-gray  
colored  
Cable connection ports:  
Cable glands —  
LF622 :Provided as standard  
OD of cableφ6mm  
Material Nylon 66  
G (PF) 1/2 male screws.  
Parity bit : None, Odd, Even  
Stop bit : 1bit, 2bit  
Error check : CRC-16  
Max. station number : 32(with Master device)  
Max. cable length : 1.2km (Note)  
Note: When PROFIBUS or Modbus option is  
specified , cable gland size is φ6~  
8mm for signal cable, φ1113mm  
for power cable  
Applicable diameter — 11 to 13mm  
Note: This length is specification of 3 line  
connection.  
(0.433 to 0.512 inch)  
Vibration resistance:  
LCD display:  
No resonance to the following levels of vibration:  
• 10 to 150Hz with acceleration of 9.8m/s2  
Full dot-matrix 128×128 dot LCD display  
(back-light provided)  
• Vibration of 30Hz with 29.4 m/s2 in 4h in each  
direction will not cause any defect to unit.  
Parameter settings — Parameters can be set as  
follows:  
Note: Avoid using the flowmeter in an  
• IR Switches: Three key switches are provided to  
set configuration parameters.  
environment with constant vibration.  
Converter LF622 dimensions :  
• Digital communication: The AF900 hand-held  
See Figure 5 (for Separate type)  
terminal is needed to set parameters.  
MTBF:220,000 hours at 25 deg.C (77 deg.F) based  
on MIL-HDBK-217F  
•Zero adjustment: Zero point adjustment can be  
started by pressing the switch in the converter.  
Damping: 0.5 to 60 seconds (selectable in one  
second increments)  
Zero and span calibration: Built-in calibration  
signal source allows converter unit check.  
3
 
LF470/LF622  
Installation  
Dimensions  
Unit:mm(inch)  
56 (2.20)  
86 (3.39)  
75 (2.95)  
30 (1.18)  
**  
*
*
**  
Detector mounting plate  
(4mm thick)  
37  
2-φ6 (φ0.24) hole  
Signal cable  
φ7(φ0.28)  
Excitation  
φ
7
(
φ0.28)  
4-φ5 (φ0.20) hole  
*
70 (2.76)  
Mounting screws  
Note:1inch=25.4mm  
*
This length becomes 78mmif the pipe  
connection port thread is Rc(PT)1/2  
If a mounting plate is needed for the LF470, fix the plate (a)  
above to the bottom of the LF470. Depending on which pair of  
screwholes used, themountinganglechanges by90°.  
2-M4  
(Mounting screw holes)  
Note:1inch=25.4mm  
Figure4. LF470 Mounting Board  
Figure3. LF470 Dimensions  
Attachment  
Unit:mm(inch)  
LCDdisplay  
I/Ocableground  
Excitationcableground  
Powersupply  
cableground  
Signalcableground  
Optioncableground  
IRSwitch  
Note: Cable glands are not provided for LF622F cFMus approved type.  
Refer to the part Cable connection port at detector.  
Weight : Approx. 3.5 Kg (7 lb)  
Note:1inch=25.4mm  
Figure5. Separate typeconverter LF622  
4
 
LF470/LF622  
SeparatetypeLF470/LF622 flowmeter  
Instrument panel : Ordered separately  
Grounding with 100Ω or less  
wire 5.5mm2 or more  
ground resistance  
Power switch  
(External double-pole power switch)  
Grounding with 100Ω or less  
ground resistance  
Power supply  
Thick walled steel conduit  
Signal cable  
Currentoutput(420mAdc)  
or PROFIBUS  
Digital input  
(2-wire shielded hard-rubbersheathed cable)  
(2030Vdc)  
Excitation cable  
(3-wireshielded hard-rubber cable)  
or Modbus  
Digital output 2  
Signal common forDIand DO  
Digital output 1  
Grounding with 100Ω or less  
Power cable  
Connected detector  
I/O cable  
ground resistance  
Symbol  
L1 ()  
L2 ()  
GND  
FG  
Description  
Cable  
Power supply  
Power cable  
Ground (for arrester)  
Frame ground  
DI  
DO1  
Digital Input (2030Vdc)  
Digital Output 1  
DO2  
COM  
Digital Output 2  
Signal Common for DI, DO1, DO2  
I/O cable  
Current Output (420mAdc)  
Shielded cable for  
PROFIBUS-PA  
or PROFIBUS  
X
Y
E
A
B
G
Excitation cable  
Signal cable  
Excitation Output  
Signal Input  
Note: Symbol of the terminal is changed as follows for Modbus.  
DO2 T+, DI T-, COM T  
Symbol  
T+  
T-  
TG  
Description  
Modbus(+)  
Modbus(-)  
Cable  
Twist-pair polyethylene  
insulated vinyl sheath cable  
(JKEV,AWG24(0.2mm2))  
Modbus(GND)  
Figure 6. Separate type LF470/LF622 flowmeters wiring Diagram  
5
 
LF470/LF622  
fluid is flowing or not.  
(3) The fluid to be measured must be held still in the  
pipe when the LF470 is being adjusted. If the fluid  
can not be stopped after the LF470 installation,  
install a bypass pipe in parallel with the LF470  
flowmeter.  
Wiring Precautions  
(1) Connect the following two cables correctly:  
1) signal cable (on the right facing the LF470)  
2) excitation cable (on the left facing the LF470)  
See figure3.  
(2) Do not bend apply excessive force to these cables.  
(3) DO1, DO2 (opt.), and DI (opt.) use the same  
common terminal (COM). This COM can not  
connect to other equipments which have their  
own ground terminal. (Power supply for  
connecting to DI or DO, etc…) Need to wire  
separately.  
Meter size  
To select the meter size:  
See Table 1 to 2 and find meter sizes within the  
velocity of 0.1 to 10m/s (0.3 to 32.8 ft/s) for a  
specified full-scale (measuring range high limit)  
flow. Select one that has its full-scale velocity  
between 1 and 3m/s (3.0 and 10 ft/s).  
Wiring Precautions (PROFIBUS or Modbus)  
Note: Make sure the full-scale flow rate used for the  
final planning stage stays within 10m/s (32.8 ft/s)  
in terms of flow velocity.  
(1) For wiring path, avoid places near electrical  
equipment that may cause electromagnetic  
induction or electrostatic induction interference  
(such as a motor, transformer and wireless  
transmitter).  
(2) Use a PROFIBUS-PA cable or a RS485 twist-pair  
cable for signal cable. In addition, make sure to  
use a shielded cable to improve noise resistance.  
Furthermore, installation of signal cable in metal  
conduit is recommended.  
Table 1. Meter size and Flow Velocity(SI unit)  
Unit:L/min  
Meter size  
0.3m/s  
1m/s  
3m/s  
10m/s  
(mm)  
2.5  
4
0.08835  
0.2262  
0.5088  
0.2945  
0.7540  
1.6967  
0.884  
2.262  
5.090  
2.945  
7.540  
16.967  
6
(3) General cables are designed for indoor use where  
cables are not exposed to humidity, rain, etc.  
When you install cables, make sure to check the  
operating conditions such as the operating  
temperature range of the cable by contacting its  
manufacturer.  
(4) When you carry out cable end treatment of cable,  
use a dedicated cable stripper etc. so that the core  
wire of the cable will not be nicked or damaged.  
In addition, for cables, be careful of allowable  
maximum bend diameter etc. (Basically, do not  
install cables in a way cables are twisted or bent.).  
Table 2. Meter size and Flow Velocity (US unit)  
Unit:gal/min  
Meter size  
0.98 ft/s  
3 ft/s  
10 ft/s  
32.8 ft/s  
(inch)  
1/10”  
1/6”  
0.02334  
0.05975  
0.1344  
0.07115  
0.1821  
0.4098  
0.2372  
0.6071  
1.3660  
0.7781  
1.992  
4.482  
1/4”  
About establishment environment  
Do not store or install the flowmeter:  
• Where there is direct sunlight.  
• Where excessive vibration or mechanical shock  
occurs.  
(5) Consider installing a PROFIBUS-PA arrester in  
the communication path of PROFBUS-PA so that  
the electromagnetic flowmeter will not be affected  
by lightning etc.  
• Where high temperature or high humidity  
conditions exist.  
(6) The electromagnetic flowmeter is not equipped  
with terminating resistors. Use the terminating  
resistor unit for PROFIBUS-PA or junction box,  
if necessary.  
(7) Only one PROFIBUS-PA cable goes through a  
cable gland of the Electromagnetic Flowmeter.  
Please use the junction box at system  
configuration.  
• Where corrosive atmospheres exist.  
• Places that can be submerged under water.  
• Where there is a sloped floor. To put the flowmeter  
temporarily on the floor, place it carefully with  
something, such as a block, to support it so that the  
flowmeter will not topple over.  
(8) Install a terminator to flowmeter that connected to  
end of Modbus network.  
In areas like the following, there may be the case that  
infrared switches do not function correctly. (If these  
are unavoidable, use an appropriate cover.)  
Piping Precautions  
(1) Where unit (operation panel) is exposed to direct  
sunlight, reflection of light onto window pane and  
diffused light reflection.  
(1) Connect the fluid pipe to the pipe connection port  
using a joint that matches the Rc (PT) female  
screw. Use seal tapes when connecting the pipe to  
the port to prevent a fluid leakage. Do not tighten  
the connection screw too much.  
(2) Design piping so that the detector’s pipe is always  
filled with the fluid to be measured, whether the  
(2) Where smoke and steam may occur.  
(3) Where exposed to direct snow, ice or mud.  
6
 
LF470/LF622  
Calibration Range  
If the calibration range is not specified, the standard  
range as shown below will be used. If the range is  
specified, we will use the specified range for  
calibration.  
Table 3. Standard Flow Range  
Meter  
Standard flow range  
size  
mm  
(inch)  
Flow  
velocity  
Flow  
velocity  
Flow rate  
Flow rate  
(m³/h)  
0.050  
0.100  
0.200  
(m/s)  
2.829  
2.211  
1.965  
(gal/min)  
0.500  
(ft/s)  
2.5 (1/10)  
4 (1/6)  
6 (1/4)  
21.084  
24.707  
29.283  
1.500  
4.000  
Note: The unit of "gal/min" is not exchanged  
(converted) by "m3/h".  
Ordering Information  
1. When ordering the LF470 flowmeters, refer to  
Tables 4 to 5 (Specification Code).  
An entry must be made for each of the columns in  
each of these tables.  
2. Fluid characteristics:  
(1) Typeoffluidtobemeasuredandits characteristics  
(2) Fluid temperature  
(3) Fluid pressure  
(4) Electrical conductivity of the fluid  
3. Measuring range  
4. I/O function setting  
5. Ordering scope:  
Flow calibration data: (required or not)  
6. Other items  
Specifications other than standard items  
Consult aToshibarepresentativebeforeorderingwhen  
choosing materialsofthewettedpartssuchaslining,  
electrodes, andgroundingrings.  
7
 
LF470/LF622  
Table4. SpecificationCode ( LF470Detector)  
Model  
Specification Code  
Description  
1 2 3 4 5 6 7 8 9 10 11 12 13 14  
L F 4 7 0  
LF470 Flowmeter  
Meter size  
2
4
6
2.5 mm (1/10")  
4 mm (1/6")  
6 mm (1/4")  
Converter ( Separate type ) combined  
LF622  
D
Pipe connection port (adapter)  
Rc (PT) 1/4 female screw (standard)  
Rc (PT) 1/8 female screw  
Rc (PT) 3/8 female screw  
Rc (PT) 1/2 female screw  
NPT1/4 female screw  
A
B
C
D
E
F
NPT3/8 female screw  
G
NPT1/8 female screw  
Pipe connection material  
316 stainless steel (standard)  
Ti (titanium)  
Polyvinyl chloride (shock0-resistance) +  
Ta (Tantalum) for grounding plate  
Polyvinyl chloride (shock0-resistance) +  
Pt-Ir for grounding plate  
Hastelloy C (Equivalent)  
Packing used between main body and pipe  
connection adapter  
A
D
E
F
H
C
D
G
Acid-resistant ceramic  
Alkali-resistant ceramic  
Ammonia-resistance  
Mounting  
A
B
Not provided  
Provided, 304 stainless steel  
Flow and calibration velocity range  
0.3 to 10 m/s (standard range calibration)  
0.3 to 10 m/s (specified range calibration)  
Cable length  
A
B
A
1
5m (cable dia.7mm)  
10m (cable dia.7mm)  
2
15m (cable dia.7mm)  
3
20m (cable dia.7mm)  
4
25m (cable dia.7mm)  
5
30m (cable dia.7mm)  
B
5m or more  
(extension dia. 12mm+Scotch cast connection)  
Coating  
A
Z
Phthalic acid resin coating pearl-gray colored (standard)  
Other  
8
 
LF470/LF622  
Table5. SpecificationCode ( LF622Converter)  
Model  
Specification Code  
LF622 type  
Contents  
1 2 3 4 5 6 7 8 9 1011121314  
L F 6 2  
2
Electromagnetic flowmeter converter  
Separate (Remote) type  
Purpose  
Standard  
Shape  
A
A
Separate type with case  
Converter mounting fitting  
None  
Panel, Accessory for wall mounting (BNP material: SUS304)  
Accessory for pipe installation (BNP material: SUS304)  
Digital input/output  
A
C
E
2
Digital output points 2 (DO1+DO2) +Digital input point 1 (DI)  
Current output and Communication function(Note1)  
Current output + HART communication  
PROFIBUS communication  
1
2
3
Modbus (RS485) communication  
Power supply(Note2)  
100Vac-240Vac, 50/60Hz  
24Vdc  
1
2
3
110Vdc  
Instruction manual  
English  
F
Note 1: When Modbus communication is provided, digital output points 1(DO1) and digital output points(DO2), digital input point  
1(DI), HART communication cannot be used.  
When PROFIBUS communication is provided, current output(4-20mA) and HART communication cannot be used.  
Check Table 6 for the details.  
Note 2: Select 110Vdc for test report inspected under the condition of 110Vdc.  
Table 6. Communication function and output selection table  
Selection of Function  
Availability of outputs  
Code  
(10th digit)  
Selected  
4-20mAdc  
DO1  
DO2  
DI  
Communication  
1
2
HART  
ꢁ ꢁ  
ꢁ ꢁ  
PROFIBUS  
3
Modbus  
(Note)  
Code explanation: :Available :Not Available  
Note : When digital output 1 function and Modbus communication function are used at one time, TG (signal ground) of  
the Modbus communication function cannot be connected (2 line connection).  
ISO9001 and ISO14001 are certified.  
Specifications are subject to change without notice.  
Printed in Japan 2011-5 (TDOC)  
Misuseofthisroductcanresultindamagetopropertyorhumaninjury.  
Readrelatedmanualscarefullybeforeusingthisproduct.  
© TOSHIBA Corporation 2011  
All Rights Reserved.  
 

Taylor Scale THD100 User Manual
TDK Power Supply ZACT2230 ME User Manual
Timex Watch M434 User Manual
TOA Electronics Intercom System VS 900 User Manual
Universal Remote Control Universal Remote M1055 User Manual
Viking Ventilation Hood F21287A EN User Manual
Vision Fitness Bicycle Fitness Bike User Manual
Vivitar Camera Lens V 650 1300 User Manual
VTech Cordless Telephone 910 ADL User Manual
Vulcan Hart Fryer VGCTS16 User Manual