Toshiba GF630 User manual

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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.
ELECTROMAGNETICFLOWMETERDETECTOR
MODEL GF630, GF632
INSTRUCTION MANUAL
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© TOSHIBA Corporation 2010
All Rights Reserved.

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NOTICE
We thank you very much for your purchase of our GF630 series electromagnetic flowmeter detector.
Integral type GF630/LF600,LF610 and LF620
Separate type detector GF632
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 (6F8A0882) 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 GF630/LF600,LF610 and LF620:
Separate type detector GF632:
Toshiba GF63* electromagnetic flowmeter detectors can be used in combination with various types of
electromagnetic flowmeter conveters (LF600,LF610,LF620 and LF602,LF612,LF622).
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 “Safely 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.
4. For the detail of the converter, Please refer to the converter LF600,LF610 ,LF620
and LF602, LF612 LF622 instruction manual.
8th Edition Apr. 2011
Integral
Separate

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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.
Theprohibitedaction is indicated by apicture or text inside or next to the circle
Indicates an action that is mandatory. DO this action.
Themandatory action isindicated by apictureortextinside or next to the circle
(white letters on a colored background).
Indicates a potential hazard. The potentially hazardous situation is indicated by
a picture or text inside or next to the triangle.

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SAFETY PRECAUTIONS(continued)
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Safety Precautions for Installation and Wiring
WARNING
Do not use the GF630/LF600,LF610,LF620 and GF632 in an explosive
atmosphere.
DON’T
Using this product except for the FM Approval type in an explosive
atmosphere can cause explosion
.
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CAUTION
Install a switch and fuse to isolate the
GF630/LF600,LF610,LF620 and GF632
from mains power.
Use an appropriate device to carry and install
the GF630/LF600,LF610,LF620 and GF632.
DO
Power supply from mains power
can cause electric shock or
circuit break-down.
DO
If this product falls to the ground,
injury, or malfunction of or damage
to the product, can be caused.
Turn off mains power before conducting
wiring work.
Do not modify or disassemble the
GF630/LF600,LF610,LF620and GF632 unnecessarily.
DO
Wiring while power is applied
can cause electric shock.
DON’T
Modifying or disassembling this
product can cause
electric shock,malfunction of or
damage to this product.
Turn off mains power before working on
pipes.
Ground the GF630/LF600,LF610,LF620 and
GF632 independently from power equipment.
(100 ohm or less ground resistance)
DO
Working on pipes 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 supply on the converter.
(Ablack border and symbol on yellow triangle)
Be alert to electric shock.

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SAFETY PRECAUTIONS (continued)
Safety Precautions for Maintenance and Inspection
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CAUTION
Do not conduct wiring work with wet hands. Do not conduct wiring work when power is
applied.
DON’T
Wet hands may result in
electric shock.
DON’T
Wiring while power is applied can
cause electric shock.
Do not touch the GF630/LF600,LF610,LF620
and GF632 main body when high temperature
fluid is being measured.
DON’T
The fluid raises the main body
temperature and can cause burns
when touched.
The label shown left is placed near
the terminal board for power input
of the converter. (Ablack borderand
symbol on yellow triangle)
Be alert to electric shock.
Usage limitation
This product is not manufactured for applying to a system requiring safety directly involved
human life as follows. Please contact your nearest Toshiba reprehensive if there is a possibility of
using this product for such use.
- Main control systems of nuclear power plants, safety protection systems in nuclear
facilities or other important systems requiring safety
- Medical control systems relating to life support
Warranty and Limitation of Liability
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.

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Handling Precautions
To obtain the optimum performance from the GF630/LF600,LF610,LF620 and GF632 for years of
continuous operation, observe the following precautions.
(1) Do not store or install the flowmeter in:
•places where there is direct sunlight.Ifthisis unavoidable, use an appropriate
sunshade. If the control keys (infrared switches) are exposed to direct sunlight, they
may not function correctly.
•places where there is snow and ice
Infrared switches may not function correctly.
•places where excessive vibration or mechanical shock occurs.
•places where high temperature or high humidity conditions obtain.
•places where corrosive atmospheres obtain.
•places submerged under water.
•place where there is slop floor.To put the flowmeter temporarily on the floor, place it
carefully with something, such as stopper, to support it so that the flowmeter will
not topple over.
(2) In the case that the piping is non-conductive material, make sure to install the grounding
rings(option) to each flange of detector using the M3 or M4 screw before piping.
(3) Wire cables correctly and securely.
Be sure to ground at the converter side (grounding resistance 100 ohm or less).
Avoid a common ground used with other equipment where earth current may flow. An
independent ground is preferable
(4) Select cable paths away from electrical equipment (motors, transformers, or radio
transmitters), which causes electromagnetic or electrostatic interference.
(5) If the inside of the converter and detector's terminal box are wetted or humidified, it may
cause insulation deterioration, which can result in fault or noise occurrence. So do not
conduct wiring in the open air on rainy days.
Also, be careful not to wet down the converter and detector's terminal box even in the case
of indoor wiring, and complete wiring work in a short period of time.
(6) Make sure the fluid to be measured will not freeze in the detector pipe. This can cause
damage to the detector pipe.
(7) Select appropriate wetted materials suited for the process fluid to be measured. Otherwise,
fluid leakage due to corrosion can be caused.
(8) Observe the following precautions when you open the converter housing cover:
•Do not open the cover in the open air unprotected against rain or wind. This can
cause electricshockor cause damagetotheflowmeter electronics.
Do not open the cover under high ambient temperature or high humidity
conditions or in corrosive atmospheres. This can cause deterioration of system accuracy
or cause damage to the flowmeter electronics.

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Handling Precautions (continued)
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(9) Since a varistor is built in converter, do not conduct a withstand voltage test for the
converter.
In addition, the voltage for checking the insulation of the converter must be 250VDC
or lower.
(10) This product may cause interference to radio and television sets if they are used near
the installation site. Use metal conduits etc. for cables to prevent this interference.
(11) Radio transmitters such as transceivers or cellular phones may cause interference to the
flowmeter if they are used near the installation site. Observe the following precautions
when using them:
•Close a transmitter cover before using a transceiver.
•Do not use a transceiver whose output power is more than 5 W.
•Move the antenna of a transceiver or a cellular phone at least 50 cm away from the
flowmeter and signal cables when using it.
•Do not use a radio transmitter or a cellular phone near the flowmeter while it is
operating online. The transmitter or cellular phone’s output impulse noise may interfere
with the flowmeter.
•Do not install a radio transmitter antenna near the flowmeter and signal cables.
(12) For reasons of flowmeter failure, inappropriate parameters, unsuitable cable
connections or poor installation conditions, the flowmeter may not operate properly. To
prevent any of these problems causing a system failure, it is recommended that you have
preventive measures designed and installed on the flowmeter signal receiving side.
(13) For installation and connectirn of the converter, check the model number of converter
and read the instruction manual of the relevant converter.
* We assume no responsibility for nonconformity caused by violation of precautions described in
this manual or used in violation of the installation method and the operation method stipulated in
a relevant ordinance or other regulations.
About disposal
When you dispose of this electromagnetic flowmeter detector, follow the ordinance or regulations of your
state.

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Table of Contents
SAFETY PRECAUTIONS ·····················································································2
Handling Precautions ······························································································5
1. Product Inspection and Storage ······································································8
1.1 Product Inspection ·······················································································8
1.2 Storage ········································································································8
2. Overview ············································································································9
3. Names of Parts ·································································································10
4. Installation ·······································································································14
4.1 Notes on Selecting the Installation Location ·············································15
4.2 Mounting Procedure····················································································15
4.3 Piping Connections ···················································································24
4.4 Grounding ·································································································27
5. Wiring ··············································································································29
5.1 Cables ········································································································30
5.2 External Device Connections and Grounding ············································31
5.3 Notes on Wiring ······················································································31
5.4 Wiring ·····································································································32
6. Operation ·········································································································36
7. Maintenance and Troubleshooting ································································37
7.1 Maintenance ······························································································37
7.2 Troubleshooting ························································································38
8. Principle of Operation ···················································································41
9. Specifications ··································································································42
9.1 Specifications ·····························································································42
9.2 Type Specification Code ············································································47
10. Outline Dimensions ·························································································48

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1. Product Inspection and Storage
1.1 Product Inspection
GF630 series electromagnetic flowmeter is shipped in a cardboard 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 integral type (when a converter and detector are united)
Electromagnetic flowmeter main unit --------------------------------- 1 unit
Instruction manuals---------------One each for the converter and detector
Ground cable -------------------------------------------------------------2 pieces
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 flowmeter for indications of damage that may have occurred during shipment.
Make sure the type and specifications of the flowmeter are in accordance with the ordered
specifications.
If you cannot find the items listed above or any problem exists, contact your nearest Toshiba representative.
1.2 Strage
To store the electromagnetic flowmeter after opening the package, select a storing place as follows
and keep it under the conditions described below:
CAUTION
(1) Avoid places where there is direct sunlight, rain or wind.
(2) Store the product in a well-ventilated place. Avoid places of extremely high humidity or
extremely high or low temperature. The following environment is recommended:
•Humidity range: 10 to 90% RH (no condensation)
•Storage temperature: –25 to +65° C
(3) Avoid places where vibrations or mechanical shock occur.
(4) If it leaves the cover of converter open while being stored, gradual deterioration of circuit
isolation can be caused. And then don’t open the cover until it is connected with wires.
(5) To put the flowmeter temporarily on the floor, place it carefully with something, such as
stopper, to support it so that the flowmeter will not topple over.
Stopper, etc. to prevent from toppling over it.
flowmeter
Integral
Separate

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2. Overview
The GF630 and GF632 electromagnetic flowmeter measures the volumetric flow rates of electrically
conductive
materials on the basis of Faraday's Law of electromagnetic induction.
The device consists of two units: the GF630 and GF632 detector, through which the fluid to be measured
flows,
and the converter, which receives the electromotive force signals from the detector, then converts the
signals into the 4–20 mAdc signal.
Features
Every type of electromagnetic flowmeter has the following features:
Fluid flow is not obstructed and pressure loss is negligible.
The process fluid's temperature, pressure, density or flow conditions has no effect on the accuracy of the
flowmeter.
The flowmeter output is directly proportional to the process flow rate, thus it is easy to read its output.

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3. Names of Parts
3.1 Appearance
3.1.1 Appearance of GF630/LF600 and LF610

Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5
as needed. (The screws are equipped to detector flanges.)

Terminal block cover
Flowdirectionarrow
Groundterminal
forconverter
GF630Detector
Flan
g
e
Groundterminal
fordetector
For the detail of the converter, check the converter
LF600 and LF610 instruction manual.
Figure 3.1.1 Appearance of GF630/LF600 and LF610

Han
g
in
g
hook
*Provided for upper 8 inch
(200mm to 600mm)
for Power cable

for I/O cable

ConverterLF600,LF61
0
Groundcable*
Groundin
g
rin
g
(Provided for PTFEliningonly)
Integral

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3.1.2 Appearance of GF630/LF620
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Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5
as needed. (The screws are equipped to detector flanges.)



Converter LF620
For the detail of the converter, check the converter
LF620 instruction manual.
Han
g
in
g
hook
*Provided for upper 8 inch
(200mm to 600mm)
Groundterminal
fordetector
Groundterminal
forconverter
Flowdirectionarrow
Flan
g
e
GF630Detec
t
or
for Power cable

for I/O cable

Groundin
g
rin
g
(Provided for PTFEliningonly)
Figure 3.1.2 Appearance of GF630/LF620 
Integral
Groundcable*

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3.1.3 Appearance of Detector GF632
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Note: The ground cables are included in the package, so install them to flanges as shown in the Fig.4.5
as needed. (The screws are equipped to detector flanges.)

Figure 3.1.3 Appearance of Detector GF632
for Excitation cable
Flowdirectionarrow
Terminal Box Cover
Flan
g
e
for Signal cable
Terminal Box
Groundterminal
fordetector Han
g
in
g
hook
*Provided for upper 8 inch
(200mm to 600mm)
Groundcable*
Separate
Groundin
g
rin
g
(Provided for PTFEliningonly)

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3.2 Construction of the terminal blocks
3.2.1 Terminal Block Construction of GF630/LF600 and LF610,LF620 Type
For the detail of the converter, check the converter LF600,LF610 and LF620 instruction manual.
3.2.2 Terminal Block Construction of GF632 Type

To signal cable terminal (A,B and G) To excitation cable terminal(X,Y and E)
Figure 3.2.2 Terminal Block of GF632
B

E

Y

A

G

X
Don’t connect wiring to this terminal.
Integral
Separate

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4. Installation
Safety Precautions for Installation
WARNING
Do not use the GF630/LF600,LF610,LF620 and GF632 in an explosive atmosphere.
DON’T
Using this product except for FM Approval type in an explosive
atmosphere can cause explosion.


CAUTION
Ground the GF630/LF600,LF610,LF620
and GF632 independently from power
equipment. (100 ohm or less ground
resistance)
Use an appropriate device to carry and install
the GF630/LF600,LF610,LF620 and GF632 .
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
GF630/LF600,LF610,LF620 and GF632 from
mains power.
Do not modify or disassemble the
GF630/LF600,LF610,LF620 and GF632
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
To put the flowmeter temporarily on the floor,
place it carefully with something, such as
stopper, to support it so that
GF630/LF600,LF610,LF620 and GF632
will not topple over.
DO

flowmeter
Stopper, etc. to prevent
from toppling over it.

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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 runs in a pulsating form.
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 of too great an elevation 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 flowingor 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 standard length of the cable that connects the detector and converter is 30m. Select the
converter installation location so that the distance of the detector and converter will not exceed 30m.

4.2 Mounting Procedure
4.2.1 Pipe checks
(1)Before installing pipes, check for any leaning or misplacement (or eccentricity) as illustrated in Figure
4.1. An attempt to unreasonably connecting pipes that are inclined may lead to a detector breakdown or
fluid leakage. Connecting pipes in an eccentric state may also cause local wears and tears of linings and
grounding rings, as well as measurement errors.
Before installing pipes, make sure to flash the interior of the pipes to remove deposited matters.
(a) Pipe leaning (b) Pipe axis misplacement (or eccentricity)
Figure 4.1 Pipe leaning and axis misplacement
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Inclination
Eccentricity
Separate

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(2) Preventing an Empty Pipe Condition
Fix the relevant pipes installed on both sides of the detector by attach fittings, etc. to support the pipe. By
supporting the pipes, not only the pipe vibration is reduced but also the damage to the pipes by the
electromagnetic flowmeter's weight and the fluid mass (see Figures 4.2 and 4.3).
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Figure 4.2 Example of Pipe Fixing Procedure
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Figure 4.3 Model Diagram of Unsupported Pipes
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Pi
p
e su
pp
ort fittin
g
sPi
p
e su
pp
ort fittin
g
s
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4.2.2 Installation Procedure
In addition, in the case of detector with FEP lining, make sure to install the gaskets between grounding ring
and lining. The gaskets must be installed so as not to protrude into the measurement tube.
And install the ground cables to each flange of detector using the M5 screw as needed. The M5 screws,
spring washers and washers are prepared to flange. And the ground cables are included in the package.
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Figure 4.5 GF630, GF632 flowmeter detector piping connections
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Gasket
(Option for FEP only)
(Standard for PTFE)
Flange
Figure 4.4 Install of grounding rings and ground cables
Grounding ring
(Option for FEP,PU)
(Standard for PTFE)
Ground cable
(Included in the package)
M4 screw(Prepared to flange)
※refer to chapter 10 about the
number of screws
Detector
Lining M5 screw , spring washer and washer
(Prepared to flange)
Downstream flange
Upstream flange
Lower mounting bolts
Upper mounting bolts
Gasket
Detector
Flow direction
Gasket
*Note2
*Note2
In the case that the piping is non-conductive material, make sure to install the grounding rings(option)
to each flange of detector using the M4 screw before piping . The M4 screws are prepared to each flange.

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To mount the GF630 series, place it between the upstream and downstream pipe flanges and tighten
it with flange bolts and nuts. See Figure 4.5 and follow the procedure below:
1. Insert two lower mounting bolts through the clearance holes in the upstream (or downstream)
pipe flange.
2. Install a gasket*next to the upstream (or downstream) flange face and the other gasket next
to the downstream (or upstream) pipe flange. The two mounting bolts can now be guided
through the clearance holes in the downstream gasket and flange.
3. Place the GF630 series flowmeter detector between the two flange gasket, with the flowmeter
detector body above the two bolts. The flowmeter must be oriented in accordance with the
flow direction arrow.
4. Install the two upper mounting bolts through the clearance holes in the upstream and downstream
gasket and flanges. Then install the remaining mounting bolts depending on the flange pattern used.
5. Thread nuts on both ends of the 4 (or more) mounting bolts, finger tight. (See Table 4.1 Bolt length and
tightening torque)
6. While centering the flowmeter with the longitudinal axis of the pipeline, tighten the nuts with a
wrench diagonally across in even increments. (See Table 4.1 Bolt length and tightening torque)
Note1: The flowmeter detector pipe axis must be aligned with the pipeline axis on both upstream and
downstream sides. This is essential to have stable characteristics of flow measurement (especially
for flowmeters with meter sizes of 50 mm or less).
Note2: In the case of detector with CR or PU lining, please avoid use of a gasket that is same materials
with lining material. If the same materials were used, gasket and lining would bond mutually.
CAUTION
(1) 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.
(2) To put the flowmeter temporarily on the floor, place it carefully with something, such as
stopper, to support it so that GF630 and GF632 will not topple over.

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Table 4.1 Bolt length and Nut tightening torque
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JIS 10K
Hexagon head bolts
Meter size
P.C.S Diamete
r
Length
[mm]
Tightening
torque
[N･m]
15mm 1/2” 4 M12 50 6 to 8
25mm 1” 4 M16 55 16 to 21
32mm 1 1/4” 4 M16 55
21 to 26
40mm 1 1/2” 4 M16 55 18 to 22
50mm 2” 4 M16 55 31 to 39
65mm 2 1/2” 4 M16 60 48 to 60
80mm 3” 8 M16 60 23 to 29
100mm 4” 8 M16 60 35 to 44
125mm 5” 8 M20 75 66 to 82
150mm 6” 8 M20 75 89 to 111
200mm 8” 12 M20 75 79 to 99
250mm 10” 12 M22 80 125 to 156
300mm 12” 16 M22 80 128 to 160
350mm 14” 16 M22 85 156 to 194
400mm 16” 16 M24 90 212 to 265
450mm 18” 20 M24 95 210 to 262
500mm 20” 20 M24 95 268 to 334
600mm 24” 24 M30 100 372 to 465