Toshiba LF664 User manual

6F8A0943
NOTES
Before using the equipment, please read this manual carefully and understand the
contents, and then use the equipment correctly.
•NEVER attempt to operate the equipment in any ways that are not described in this
instruction manual.
•After reading this manual, store it with care in a place where it can be referred to
whenever needed.
•Please be sure that this manual is delivered to the personnel who will use this product.
ELECTROMAGNETICFLOWMETERDETECTOR
MODEL LF664
INSTRUCTION MANUAL

— —
1
6F8A0943
NOTICE
We thank you very much for your purchase of our LF664 series electromagnetic flowmeter
detector.
Integral type LF664/LF620F
Separate type detector LF664
This instruction manual describes the notes on using an electromagnetic flowmeter detector,
installation, configuration and maintenance. It is intended for the personnel in charge of installation,
operation and maintenance.
To use this product properly and safely, read this manual (6F8A0943) carefully before using this
product. After reading this manual, store it in a place where it can be referred to whenever needed.
This manual uses the following markers to identify the integral type or separate type when it
describes items specific to the integrated type or separate type. Items without this marker are common
items to the integral type and separate type.
Integral type LF664/LF620F:
Separate type detector LF664:
Toshiba LF664 electromagnetic flowmeter detectors can be used in combination with various types of
electromagnetic flowmeter converters (LF620F, LF622F).
For the notes on usage, connecting, wiring, installation, configuration and maintenance of the
combined converter, check the model number of the combined converter and read the
instruction manual of the relevant converter.
About Safety Precautions
Read the Safety Precautions described at the front carefully and understand the contents
before using this product.
The “Safety symbols” used in the “Safety Precautions” are shown in a location such as
in the margin to the left of the corresponding commentary in the main text.
NOTES
1. The reproduction of the contents of this Manual in any form, whether wholly or in part, is
not permitted without explicit prior consent and approval.
2. The information contained in this Manual is subject to change or review without prior
notice.
3. Be sure to follow all safety, operating and handling precautions described in this Manual
and the regulations in force in the country in which this product is to be used.
3rd Edition January, 2011
First EditionSeptember , 2010
LF620F
LF622F

— —
2
6F8A0943
SAFETY PRECAUTIONS
Safety signs and labels affixed to the product and/or described in this manual give important
information for using the product safely. They help prevent damage to property and obviate hazards for
persons using the product.
Make yourself familiar with signal words and symbols used for safety signs and labels. Then read the
safety precautions that follow to prevent an accident involving personal injury, death or damage to
property.
Explanation of signal words
The signal word or words are used to designate a degree or level of hazard seriousness.
The signal words used for the product described in this manual are WARNING and CAUTION.
WARNING
Indicates a potentially hazardous situation which,
if not avoided, could result in death or serious
injury.
CAUTION
Indicates a potentially hazardous situation which,
if not avoided, may result in minor to moderate
injuries or in property damage.
Safety symbols
The following symbols are used in safety signs and labels affixed to a product and/or in the manual for
giving safety instructions.
Indicates an action that is prohibited. Simply DON’T do this action.
The prohibited action is indicated by apicture or text inside or next to the
circle
Indicates an action that is mandatory. DO this action.
The mandatory action is indicated by apicture or text inside or next to the
circle.
Indicates a potential hazard. The potentially hazardous situation is
indicated by a picture or text inside or next to the triangle.

— —
3
6F8A0943
SAFETY PRECAUTIONS (continued)
Safety Precautions for Installation and Wiring
CAUTION
Turn off mains power before
working on pipes.
Use an appropriate device to carry
and install the LF664.
DO
Working on pipes while
power is applied can cause
electric shock.
DO
If this product falls to
the ground, injury, or
malfunction of or
damage to the product,
can be caused.
Install a switch and fuse to isolate
the LF664 from mains power.
Do not modify or disassemble the
LF664 unnecessarily.
DO
Power supply from mains
power can cause electric
shock or circuit
break-down.
DON’T
Modifying or
disassem-bling this
product can cause
electric shock,
malfunction of or
damage to this product.
Turn off mains power before
conducting wiring work.
Ground the LF664 independently
from power equipment.
DO
Wiring while power is
applied can cause electric
shock.
DO
Operating this product
without grounding can
cause electric shock or
malfunction.
Do not conduct wiring work with bare
hands.
Use crimped terminal lugs for the
terminal board and GND terminal.
DON’T
Remaining electric
charge even if power is
turned off can still cause
electric shock.
DO
Loose connections can
cause electric shock,
fire from excessive
current or system
malfunction.
Do not work on piping and wiring
with wet hands.
DON’T
Wet hands may result in
electric shock.
The label shown left is
placed near the terminal
board for power input.
Be alert to electric
shock.

— —
4
6F8A0943
SAFETY PRECAUTIONS (continued)
Safety Precautions for Maintenance and Inspection
CAUTION
Do not touch the LF664 main body
when high temperature fluid is being
measured.
Do not conduct wiring work when
power is applied.
DON’T
The fluid raises the main
body temperature and can
cause burns when touched.
DON’T
Wiring while power is
applied can cause
electric shock.
Do not conduct wiring work with wet
hands.
DON’T
Wet hands may result in
electric shock.
The label shown left is
placed near the terminal
board for power input.
Be alert to electric
shock.
Do not use a fuse other than the one
specified.
DON’T
Using a fuse other than the
one specified can cause
system failure, damage or
malfunction.
Disclaimer
Toshiba does not accept liability for any damage or loss, material or personal, caused as a direct or
indirect result of the operation of this product in connection with, or due to, the occurrence of any
event of force majeure (including fire or earthquake) or the misuse of this product, whether
intentional or accidental.

— —
5
6F8A0943
Safety and Handling Precautions
For safety reasons, observe the following precautions.
(1) Do no work on piping or wiring while power is applied. Otherwise, it may result in
electric shock. Even if the power is turned off, remaining electric charge may still
cause electric shock. Therefore, wear nonconductive gloves whenever you work on
piping or wiring.
(2) Do not use the LF664 detector in a way other than those specified in this manual. It
may cause malfunction or damage to this product.
(3) When high temperature fluid is being measured, the fluid raises the detector pipe
temperature. Do not touch the elevated temperature detector pipe. It may cause
injury to personnel when touched.
(4) As this detector is heavy, observe the following precautions:
Wear protective gloves.
Do not work on piping or wiring when the detector is wet and slippery.
A crane is needed to carry and install the detector.
To put the detector temporarily on the floor, place it with an appropriate support
to prevent it from falling down.
To obtain the optimum performance of the LF664 detector for years of continuous operation,
observe the following precautions.
(1) Do not store or install the detector in a place such as:
• where there is direct sunlight. If this is unavoidable, use an appropriate sunshade.
• where excessive vibration or mechanical shock occurs.
• under high temperature or high humidity condition.
• under corrosive atmospheres.
(2) Ground the detector and converter with less than 100 ohm ground resistance. Avoid
a common ground used with other equipment where earth current may flow. An
independent ground is preferable.
(3) The retaining screws for the terminal housing cover and the cable connections are
tightened securely at the time of shipment to keep the terminal housing airtight. Do
not remove these screws or connections unless it is necessary to wire new cables or
replace old ones. Otherwise, it may cause gradual deterioration of circuit isolation
or cause damage to this product.
(4) Make sure the fluid to be measured will not freeze in the detector pipe. It may
cause damage to the detector pipe.

— —
6
6F8A0943
Table of Contents
SAFETY PRECAUTIONS ····················································································· 2
Safety and Handling Precautions ··········································································· 5
1. Product Inspection and Storage ······································································ 7
1.1 Product Inspection ······················································································ 7
1.2 Storage ········································································································ 7
2. Overview ··········································································································· 8
3. Names of Parts ································································································· 9
3.1 Appearance ··································································································· 9
3.2 Construction of the terminal blocks ···························································· 13
4. Installation ······································································································ 15
4.1 Notes on Selecting the Installation Location ············································· 15
4.2 Mounting Procedure···················································································· 16
4.3 Precautions of Piping ·················································································· 19
4.4 Grounding ··································································································· 22
5. Wiring ············································································································· 24
5.1 Cables ········································································································· 26
5.2 External Device Connections and Grounding ·············································· 27
5.3 Notes on Wiring··························································································· 27
5.4 Wiring·········································································································· 28
6. Operation ········································································································ 31
7. Maintenance and Troubleshooting ······························································· 32
7.1 Maintenance ······························································································· 33
7.2 Troubleshooting ························································································· 34
8. Principle of Operation ··················································································· 37
9. Specifications ·································································································· 38
9.1 Specifications ····························································································· 38
9.2 Type Specification Code ············································································ 42
10. Outline Dimensions ·························································································· 44
10.1 Outline dimensions of LF664/LF620F ····················································· 44
10.2 Outline dimensions of LF664 ··································································· 46

— —
7
6F8A0943
1. Product Inspection and Storage
Upon arrival of the product package, open the package and check the items contained inside. If you
do not install the product shortly afterward, store the product and other related items in a place as
described in 1.2 below.
1.1 Product Inspection
The LF664 electromagnetic flowmeter detector is shipped in a container filled with shock-absorbing
materials. Open the package carefully and check as follows:
Make sure the following items are included in the package.
For the separate type (when a converter and detector are separated)
Electromagnetic flowmeter converter---------------------------------- 1 unit
Electromagnetic flowmeter detector ----------------------------------- 1 unit
Instruction manual---------------Once each for the converter and detector
For the separate type (when a converter and detector are separated)
Electromagnetic flowmeter converter---------------------------------- 1 unit
Electromagnetic flowmeter detector ----------------------------------- 1 unit
Instruction manuals---------------------each for the converter and detector
Ground cable -------------------------------------------------------------2 pieces
Inspect the detector for indications of damage that may have occurred during shipment.
Make sure the type and specifications of the detector (meter size, wetted materials,
protective coating, etc.) are in accordance with the ordered specifications.
If you can not find the items listed above or any problem exists, contact your nearest Toshiba
representative.
1.2 Storage
To store the LF664 detector after opening the package but you will install it at a later date,
select a storing place as follows and keep it under the conditions as described:
(1) Avoid the place where there is direct sunlight, rain or wind.
(2) Store the product in a well-ventilated place. Avoid the place where it is extremely high
in humidity, extremely high or low in temperature. The following environment is
recommended.
• Humidity range: 10 to 90% RH (no condensation)
• Storage temperature range: –15 to +65 °C
(3) Avoid the place where vibrations or mechanical shock occurs.
(4) Do not open the terminal housing cover of the detector. Open it only when you actually
wire cables. Leaving the cover open may cause gradual deterioration of circuit isolation.
Note that the detector whose cables are wired already at the time of shipment is not
needed to open the detector housing cover.
LF622F
LF620F

— —
8
6F8A0943
2. Overview
The LF664/LF620F and LF664 electromagnetic flowmeter can be use in the following
hazardous (classified) locations.
ClassⅠ,Ⅱ,Ⅲ, Division 2, Groups A-G
The electromagnetic flowmeter measures the volumetric flow rates of electrically conductive
materials based on Faraday's Law of electromagnetic induction.
The device consists of two units: detector, through which the fluid to be measured flows, and
converter, which receives the electromotive force signals from the detector, then converts and outputs
the signals as the industry-standard output signals.
The detector and converter can be mounted separately as independent units.
Features
The LF664 flange-type electromagnetic flowmeter has the following features:
There is no pressure loss even if a flowmeter detector is installed in the pipeline.
It is possible to measure the flow of the fluid containing solid materials such as
sludge or slurries.
Even fluids containing solid abrasives or process slurry noise can be measured
with excellent performance.
No moving parts means a quick indication of flow and even a small amount of
flow can be measured with high accuracy.
Its size and weight was reduced further compared to the conventional type.
A submersible type is available as optional specification.

— —
9
6F8A0943
3. Names of Parts
3.1 Appearance
3.1.1 Appearance of LF664/LF620F
(1) Meter size 20”(500mm), 24”(600mm)
Figure 3.1.1 Appearance of the LF664/LF620F
Meter size 20”(500mm), 24”(600mm)
Converter LF620F
Hanging hooks
For power cable
1/2-14NPT
For the detail of the converter, check the converter
LF620F instruction manual.
For I/O cable
1/2-14NPT
Ground cable
Detector LF664
LF620F

— —
10
6F8A0943
(2) Meter size 28”(700mm) to 36”(900mm)
Figure 3.1.2 Appearance of the LF664/LF620F
Meter size 28”(700mm) to 36”(900mm)
LF620FFor the detail of the converter, check the converter
LF620F instruction manual.
For power cable
1/2-14NPT
For I/O cable
1/2-14NPT
Converter LF620F
Detector LF664
Hanging hooks
Ground cable

— —
11
6F8A0943
3.1.2 Appearance of LF664
(1) Meter size 20”(500mm), 24”(600mm)
Figure 3.1.3 Appearance of the LF664
Meter size 20”(500mm), 24”(600mm)
LF622F
For excitation cable
1/2-14NPT
For signal cable
1/2-14NPT Terminal box
Detector LF664
Ground cable
Hanging hooks

— —
12
6F8A0943
(2) Meter size 28”(700mm) to 78”(1950mm)
Figure 3.1.4 Appearance of the LF664
Meter size 28”(700mm) to 78”(1950mm)
LF622F
For excitation cable
1/2-14NPT
For signal cable
1/2-14NPT
Detector LF664
Ground cable
Terminal box Hanging hooks

— —
13
6F8A0943
3.2 Construction of the terminal blocks
3.2.1 Terminal Block Construction of LF664/LF620F Type
For the detail of the converter, check the converter LF620F instruction manual.
3.2.2 Terminal Block Construction of LF664 Type
Fi
g
ure 3.2 Terminal Block of LF664
LF620F
LF622F
To si
g
nal cable terminal
(
A
,
B and G
)
To excitation cable terminal
(
X
,
Y and E
)
EXCITE SIGNAL
Y
E
B
A
X
G
Don’t connect wiring to this terminal.

— —
14
6F8A0943
4. Installation
Safety Precautions for Installation
WARNING
Do not active live circuits under environment of explosive atmospheres.
DON’T
Live part of electric circuit or a high temperature department can cause explosion.
Do not use parts of other products.
DON’T
Protective performance degradation for hazardous location can cause explosion.
Do not active live circuits While assembly of all components is not over.
DON’T
Protective performance degradation for hazardous location can cause explosion.
Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70) and the
Canadian Electrical code for Canada (CEC, CAN/CSA-C22.1) and the drawing
Appendix 1.
DO
Unsuitable conduit connections for hazardous location can cause explosion.
CAUTION
Ground the LF664/LF620F and LF664
independently from power equipment.
(100 ohm or less ground resistance)
Use an appropriate device to carry and install
the LF664/LF620F and LF664 .
DO
Operating this product without
grounding can cause electric
shock or malfunction.
DO
If his product falls to the ground,
injury, or malfunction of or damage to
the product, can be caused.
Install a switch and fuse to isolate the
LF664/LF620F and LF664 from mains power.
Do not modify or disassemble the
LF664/LF620F and LF664 unnecessarily.
DO
Power supply from mains power
can cause electric shock or
circuit break-down.
DON’T
Modifying or disassembling this product
can cause electric shock,malfunction
or damage to this product.
Do not work on piping and wiring with wet
hands.
DON’T
Wet hands may result in electric
shock
The label shown left is placed near the
terminal board for power supply to the
converter.
Be alert to electric shock

— —
15
6F8A0943
4.1 Notes on Selecting the Installation Location
1. Avoid places within the immediate proximity of equipment producing electrical
interference (such as motors, transformers, radio transmitters, electrolytic cells, or
other equipment causing electromagnetic or electrostatic interference).
2. Avoid places where excessive pipe vibration occurs.
3. Avoid places where fluid is pumped in a pulsating manner
4. Avoid places where there is direct sunlight. If this is unavoidable, use an appropriate
shade
5. Avoid places where corrosive atmospheres or high humidity conditions obtain.
6. Avoid places where there may be limited access such as pipes installed next to high
ceilings or constricted areas where clearance for installation or maintenance work is not
provided.
7. Design piping so that the detector pipe is always filled with fluid, whether the fluid is
flowing or not.
8. The detector has no adjustable piping mechanism. Install an adjustable short pipe where
needed.
9. Chemical injections should be conducted on the downstream side of the flowmeter.
10. The maximum length of the cable that connects the detector and converter is 300m.
Select the converter installation location so that the distance between the detector and
converter dose not exceed 300m.
LF622F

— —
16
6F8A0943
4.2 Mounting Procedure
CAUTION
Use an appropriate device to carry
and install the LF664.
Turn off mains power before
working on pipes.
DO
If this product falls to the
ground, injury, of
malfunction of or damage
to the product, can be
caused.
DON’T
Working on pipes while
power is applied can
cause electric shock.
4.2.1 Piping Connections
The LF664 detector has flanges on both ends of detector main body. To mount the LF664,
refer to Figure 4.1 and follow the procedure below:
1. Place one of the flange packing next to the upstream (or downstream) pipe flange.
Align the holes of the packing with those of the flange so that the holes are not obstructed.
2. Insert the LF664 detector in pipeline in accordance with the flow direction arrow
on the detector.
IMPORTANT
A crane is needed to carry and install the detector.
3. Insert the bolts, one at a time, through the hole in the upstream pipe flange and
packing, and then through the hole of the detector flange. Then thread nuts, one at a time, on
each end of the bolts, finger-tighten. This will help support the detector on one side.
4. Insert the downstream (or upstream) packing between the detector flange and the
downstream pipe flange. Align the holes of the packing with those of the flanges so that the
holes are not obstructed.
5. Inert the bolts, one at a time, through the hole in the downstream pipe flange and
packing, and then through the hole of the detector flange. Then thread nuts, one at a time, on
each end of the bolts, finger-tighten. This will help support the detector.
6. While centering the detector with the longitudinal axis of the pipeline, tighten the
bolts with a wrench diagonally across in even increments. Bolt torque should be limited to
that shown in Table 4.1
IMPORTANT
When high-temperature fluid is being measured, radiant heat from the detector pipe
surface and adjoining pipes may cause the ambient temperature of the converter to go
above 60 °C. If the ambient temperature goes above 60° C, try to lower the
temperature by measures such as wrapping heat-insulating materials over the detector
pipe and adjoining pipes .

— —
17
6F8A0943
Table 4.1 Number of bolts, size and recommended bolt torque
Meter size
[inch (mm)] Number of bolts Bolt size
[inch]
Bolt torque *1
[N・m] Flange standard
20” (500) 20 1-1/8 199〜249
24” (600) 20 1-1/4 305〜381 ANSI 150
28” (700) 28 1-1/4 268〜335
30” (750) 28 1-1/4 310〜387
32” (800) 28 1-1/2 416〜520
36” (900) 32 1-1/2 450〜562
40” (1000) 36 1-1/2 450〜562
42” (1050) 36 1-1/2 571〜713
48” (1200) 44 1-1/2 570〜712
54” (1350) 44 1-3/4 830〜1037
60” (1500) 52 1-3/4 863〜1078
66” (1650) 52 1-3/4 1058〜1323
72” (1800) 60 1-3/4 1066〜1332
78” (1950) 64 2 1431〜1789
AWWA class D
*1: 1[N・m] is 0.7376 [ft・lbf].
Figure 4.1 The LF664 detector piping connections
Upstream flange Downstream flange
Connection bolt
Detector
Packing
Flow direction

— —
18
6F8A0943
4.2.2 Precautions in transportation
To prevent the device from being damaged during transportation, the original packing should be
left untouched until the device arrives near the intended installation site.
The detector is equipped with hanging hooks. Lift it as shown in Figure 4.5. For information on the
actual mass of each diameter, refer to "10. Outline Dimensions"
* The lifting work should be executed by those qualified for crane work or slinging work
Figure 4.2 Transportation of LF664 flowmeter detector
IMPORTANT
Never lift the detector by inserting a bar into its measurement pipe, because this will
dama
g
e the linin
g
s, thus makin
g
it im
p
ossible to take stable measurements.
90°or less
Wire or cloth belt
is used. 90°or less
Wire or cloth belt
is used.
(b) Meter size 20” and 24”(500mm and 600mm) (a) Meter size 28” and over (700mm and over)

— —
19
6F8A0943
4.3 Precautions on Piping
(1a) Ideal Upstream Straight Pipe Length Installation Requirements
If various joints are used upstream of the detector outlet, the straight pipe length
as shown in Table 4.1 is required.
Table 4.1 Ideal straight pipe length on the upstream side
L: Required straight pipe length—straight pipe length plus half length of the detector.
D: Nominal bore size (diameter)
NOTES
The length of a reducer, if connected, can be counted as a part of the straight pipe length.
No straight pipe length is needed on the downstream side. If a butterfly valve is installed
downstream of the detector, do not let the valve plate protrude into the pipe of the detector.
(1b) Optional “Mount Anywhere” Installation
Mount-Anywhere Technology:
With Toshiba’s unique magnetic field distribution technology, the meter is highly
immune to upstream flow disturbances. A minimum of 3D (diameter) length of upstream
straight pipe from the flange is required to maintain the performance specification.
NOTE
The test results were obtained and demonstrated at Toshiba admitted flow calibration
facility.
L=5D L=10D
(
1
)
90°
b
en
t
(2) Tee
(3) Diffuser
(
4
)
Full
y
o
p
ened sluice valve
(5) Other valves (not fully o
p
ened
)
L
L
L
L
L
Table of contents
Other Toshiba Security Sensor manuals

Toshiba
Toshiba TCB-LDS Series User manual

Toshiba
Toshiba RBC-AIP1 User manual

Toshiba
Toshiba TCB-LD1UPE User manual

Toshiba
Toshiba RBC-RD1-PE User manual

Toshiba
Toshiba TCB-IFDES1001P-UL User manual

Toshiba
Toshiba TCB-LDS1 User manual

Toshiba
Toshiba TCB-SFMCA1V-E Manual

Toshiba
Toshiba GF630 User manual

Toshiba
Toshiba LF150 User manual