Electromagnetic Flowmeter Converter LF620F Type
6 F 8 A 0 9 2 8
Electromagnetic Flowmeter Converter
LF620F Type, LF622F Type
INSTRUCTION MANUAL
NOTES
Before using the equipment, please read this manual carefully and understand the
contents, and then use the equipment correctly.
x NEVER attempt to operate the equipment in any ways that are not described in this
instruction manual.
x After reading this manual, store it with care in a place where it can be referred to
whenever needed.
x Please be sure that this manual is delivered to the personnel who will use this
product.
6 F 8 A 0 9 2 8 NOTICE
We thank you very much for your purchase of our LF62F series electromagnetic
flowmeter converter.
Integral type converter LF620F
Separate type converter LF622F
This instruction manual describes the notes on using an electromagnetic flowmeter
converter, 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 carefully before using this product.
After reading this manual, store it in a place where it can be referred to
whenever needed.
About a PROFIBUS or Modbus communication function, please read each instruction
manual.
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 converter LF620F:
/)))
Separate type converter LF622F:
/))
Toshiba LF62F series electromagnetic flowmeter converters can be used in combination with
various types of electromagnetic flowmeter detectors.
For the notes on usage, piping, installation, configuration and maintenance of the
combined detector, check the model number of the combined detector and read the
instruction manual of the relevant detector.
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.
First Edition Jul., 2009
5th Edition Dec., 2014
㸫 1 㸫
6 F 8 A 0 9 2 8 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.
Notes:
1 “Serious injury” refers to an injury such as loss of sight, physical damage, burns (high
temperature or low temperature) electric shock, bone fracture and poisoning and the after
effect of the injury remains or the injury requires hospitalization or long periods of
outpatient treatment.
2 “Minor to moderate injuries” refers to burns, electric shocks, and so on, that do not require
the injured person to be hospitalized or go to a hospital for a long period of time for
medical treatment. “Property damage” includes all kinds of damage to property, equipment
or materials.
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 a picture or text inside or next to the circle
Indicates an action that is mandatory. DO this action.
The mandatory action is indicated by a picture 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.
Color explanation
WARNING
Background color: Yellow and Red, Border: Black, Picture display: Black
CAUTION
Background color: Yellow,
㸫 2 㸫
Border: Black, Picture display: Black
6 F 8 A 0 9 2 8 SAFETY PRECAUTIONS (continued)
Safety Precautions for Hazardous Locations
㼃㻭㻾㻺㻵㻺㻳
Do not disconnect while circuit is live unless location is known to be nonhazardous.
Live part of electric circuit or a high temperature department can cause explosion.
㻰㻻㻺’㼀
Do not modify or disassemble the enclosure.
Strength degradation and defects of enclosure can cause explosion.
㻰㻻㻺’㼀
Do not use parts of other products.
Protective performance degradation for hazardous location can cause explosion.
㻰㻻㻺’㼀
Do not touch circuits until assembly of all components is over.
Protective performance degradation for hazardous location can cause explosion.
㻰㻻㻺’㼀
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
3S8A2676,3S8A2677 (Refer to Appendix 2.).
Unsuitable conduit connections for hazardous location can cause explosion.
㻰㻻
㸫 3 㸫
6 F 8 A 0 9 2 8 Safety Precautions for Installation and Wiring
CAUTION
Install a switch and fuse to isolate the
LF620F and LF622F from mains power.
DO
Use an appropriate device to carry and install the
LF620F and LF622F.
Power supply from mains
power can cause electric
shock or circuit
break-down.
Use crimped terminal lugs for the terminal
board and GND terminal.
DO
Loose connections can
cause electric shock, fire
from excessive current or
system malfunction.
Wiring while power is
applied can cause electric
shock.
Modifying or disassembling this
product can cause
electric shock,
malfunction of or damage to this
DON’T
product.
Ground the LF620F and LF622F independently
from power equipment. (100 ohm or less
ground resistance)
Operating this product
without grounding can cause
electric shock or malfunction.
DO
ŶDo not work on piping and wiring with wet hands.
Turn off mains power before working on
pipes.
DO
DO
Do not modify or disassemble the LF620F and
LF622F unnecessarily.
Turn off mains power before conducting
wiring work.
DO
If this product falls to the ground,
injury, or malfunction of or damage to
the product, can be caused.
Working on pipes while
power is applied can
cause electric shock.
Wet hands may result in electric
shock.
DON’T
Do not conduct wiring work with bare hands.
DON’T
Remaining electric
charge even if power is
turned off can still cause
electric shock.
The label shown left is placed near the terminal board for power supply
on the converter.
Be alert to electric shock.
㸫 4 㸫
6 F 8 A 0 9 2 8 SAFETY PRECAUTIONS (continued)
Safety Precautions for Maintenance and Inspection
CAUTION
Do not touch the LF620F main body
when high temperature fluid is
being measured.
The fluid raises the main
body temperature and can
cause burns when touched.
DON’T
Do not conduct wiring work when power is
applied.
Wiring while power is applied can
cause electric shock.
DON’T
Do not conduct wiring work with wet
hands.
DON’T
The label shown left is placed near
the terminal board for power input.
(A black border and symbol on
yellow triangle)
Be alert to electric shock.
Wet hands may result in
electric shock.
Do not use a fuse other than the one
specified.
Using a fuse other than the
one specified can cause
system failure, damage or
malfunction.
DON’T
Use a rated fuse as follows:
Fuse rating:
• 1A/250V for 100 to 240Vac or 110Vdc
• 2A/250V for 24 V dc
Dimensions:
Diameter 5.2 mm × 20 mm
Melting time characteristic:
• Time Lag Fuses for 100 to 240Vac or 110Vdc
• Normal blow type for 24 V dc
Usage limitation
(1) 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.
㸫 5 㸫
6 F 8 A 0 9 2 8 Handling Precautions
To obtain the optimum performance from the LF620F and LF622F converter for years of continuous
operation, observe the following precautions.
(1) Do not store or install the flowmeter in :
࣭Where there is direct sunlight.
࣭Where excessive vibration or mechanical shock occurs.
࣭Where high temperature or high humidity conditions obtain.
࣭Where corrosive atmospheres exist.
࣭That can be places 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.
࣭Places where there is following factors.
ڦFactors to impede infrared switch to operate properly
࣭Intense light such as direct sunlight and reflected sunlight by window glass or metal plate
࣭Place where brightness changes suddenly such as ON/OFF of lighting
࣭Dense smoke or steam near the control panel
࣭Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and
haze due to their attachment
࣭Light reflecting object near the control panel, or reflecting object such as metal plate placed
opposing to the control panel
When any of above factors is considered, take a measure for the proper operation of infrared
switch such as to place a cover or to secure a space for at least a person to stand in front of the
control panel.
When unable to avoid above factors, operate the EMF converter removing the factor by
covering the control panel by hand so that light does not shine on it, by cleaning those attached
on the control panel, or by standing in-between the reflecting object and the control panel to
block the light.
(2) Wire cables correctly and securely.
Be sure to ground at the combined converter side (grounding resistance 100ȍ or less). Avoid a
common ground used with other equipment where earth current may flow. An independent
ground is preferable
(3) Select cable paths away from electrical equipment (motors, transformers, or radio transmitters),
which causes electromagnetic or electrostatic interference.
(4) The cable lead-in section must be tightened securely to keep air tightness.
(5) If the inside of the converter or cable terminals 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 even in the case of indoor wiring, and complete
wiring work in a short period of time.
㸫 6 㸫
6 F 8 A 0 9 2 8 Handling Precautions (continued)
(6) Observe the following precautions when you open the converter housing cover:
x Do not open the cover in the open air unprotected against rain or wind. This can cause
electric shock or cause damage to the flowmeter electronics.
x 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.
(7) 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.
(8) 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.
(9) 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:
x Close a transmitter cover before using a transceiver.
x Do not use a transceiver whose output power is more than 5 W.
x Move the antenna of a transceiver or a cellular phone at least 20 inch (50 cm) away from the
flowmeter and signal cables when using it.
x 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.
x Do not install a radio transmitter antenna near the flowmeter and signal cables.
(10) 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.
(11) For piping and installation of the combined detector, check the model number of
detector and read the instruction manual of the relevant detector.
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.
㸫 7 㸫
6 F 8 A 0 9 2 8 Table of Contents
1.
Product Inspection and Storage ........................................................................................................................... 11
1.1 Product Inspection ........................................................................................................................................ 11
1.2 Storage.......................................................................................................................................................... 11
2.
Overview ................................................................................................................................................................. 12
3.
Names of Parts ....................................................................................................................................................... 13
3.1 Appearance................................................................................................................................................... 13
3.1.1 Appearance of LF620F Type .......................................................................................................... 13
3.1.2 Appearance of LF622F Type .......................................................................................................... 14
3.2 Construction of the terminal blocks ............................................................................................................... 15
3.2.1 Terminal Block Construction of LF620F Type................................................................................. 15
4.
Installation .............................................................................................................................................................. 16
4.1 Notes on Selecting the Installation Location ................................................................................................. 17
4.2 How to Install................................................................................................................................................. 18
4.2.1 LF620F Type................................................................................................................................... 18
4.2.2 LF622F Type................................................................................................................................... 18
5.
Wiring ...................................................................................................................................................................... 21
5.1 Cables ........................................................................................................................................................... 23
5.2 External Device Connections and Grounding ............................................................................................... 24
5.2.1 LF620F Type................................................................................................................................... 24
5.2.2 LF622F Type................................................................................................................................... 25
5.3 Notes on Wiring............................................................................................................................................. 26
5.3.1 Notes on Instrumentation-Converter Wiring.................................................................................... 26
5.3.2 Notes on Wiring of the LF622F Type .............................................................................................. 26
5.4 Wiring ............................................................................................................................................................ 27
5.4.1 Grounding ....................................................................................................................................... 27
5.4.2 Terminal Treatment of Cables......................................................................................................... 29
5.4.3 Cable Connection............................................................................................................................ 31
5.5 Digital I/O Connections ................................................................................................................................. 32
6.
Operation ................................................................................................................................................................ 33
6.1 Preparatory check ......................................................................................................................................... 33
6.2 Zero Adjustment............................................................................................................................................ 34
㸫 8 㸫
6 F 8 A 0 9 2 8 7.
LCD Display and Controls ..................................................................................................................................... 35
7.1 Name and Function of Each Part of LCD Display ......................................................................................... 35
Instructions ............................................................................................................................................................... 35
7.2 Basic operations............................................................................................................................................ 42
7.2.1 Mode Change.................................................................................................................................. 42
7.2.2 Setting and Calibration.................................................................................................................... 46
7.3 Configuration Items Selection Table ............................................................................................................. 50
7.4 Password input.............................................................................................................................................. 52
8.
Parameter Settings................................................................................................................................................. 53
8.1 Parameter Setting Items ............................................................................................................................... 53
8.2 Check/Change of Parameters....................................................................................................................... 54
Function A: Detector Settings........................................................................................................................ 55
Function B: Display Settings ......................................................................................................................... 60
Function C: Range Settings .......................................................................................................................... 66
Function D: Filter Settings ............................................................................................................................. 72
Function E: Low Cutoff Settings .................................................................................................................... 75
Function F: Zero Point Setting....................................................................................................................... 77
Function G: Current Output Setting............................................................................................................... 79
Function H: Digital Output Settings ............................................................................................................... 81
Function I: Digital Input Settings.................................................................................................................... 83
Function J: Count and Pulse Settings ........................................................................................................... 85
Function K: Preset Settings........................................................................................................................... 88
Function L: High/Low Alarm Settings ............................................................................................................ 91
Function M: High-High/Low-Low Alarm Settings........................................................................................... 91
Function N: Self-diagnosis Function Settings................................................................................................ 93
Function O: Fixed Value Output Settings...................................................................................................... 96
Function P: Other Settings ............................................................................................................................ 99
Function Q: Communication Settings.......................................................................................................... 106
Function R: Calibration Settings.................................................................................................................. 106
8.3 Parameter initial settings list ....................................................................................................................... 108
9.
Mag-Prover-Calibration........................................................................................................................................ 110
9.1 Calibration Items ......................................................................................................................................... 110
9.2 Calibration Using Mag-Prover’s Built-In Signal Source............................................................................... 111
9.2.1 0 % Flow Rate Calibration (Zero Calibration)................................................................................ 111
9.2.2 50 % Flow Rate Calibration........................................................................................................... 112
9.2.3 100 % Flow Rate Calibration (Span Calibration)........................................................................... 112
9.2.4 Checking the Excitation Current.................................................................................................... 112
㸫 9 㸫
6 F 8 A 0 9 2 8 10. Functional Description ........................................................................................................................................ 113
10.1 Digital I/O Specifications ............................................................................................................................. 114
10.2 Totalizer and Pulse Output.......................................................................................................................... 115
10.3 Multi-range Function ................................................................................................................................... 119
10.4 Flow Rate High/Low, High-High/Low-Low Alarm Output............................................................................. 124
10.5 Preset Count Function ................................................................................................................................ 126
10.6 Remote Zero Adjustment ............................................................................................................................ 129
10.7 Remote Selection of Fixed Value Output .................................................................................................... 129
10.8 Converter Failure Alarm .............................................................................................................................. 130
10.9 Multiple range high/low limit alarm function ................................................................................................ 131
10.10 Custom unit function ................................................................................................................................... 133
11. Communications Function .................................................................................................................................. 136
11.1 Connection to the Configurator ................................................................................................................... 136
11.2 Notes on Communications .......................................................................................................................... 138
12. Self Diagnosis and Alarms .................................................................................................................................. 139
12.1 Self-Diagnosis ............................................................................................................................................. 139
12.2 Output Status for Errors and Alarms ........................................................................................................... 142
13. Maintenance and Troubleshooting..................................................................................................................... 143
13.1 Maintenance................................................................................................................................................ 144
13.2 Troubleshooting .......................................................................................................................................... 147
13.2.1 Flow rate is not indicated. ............................................................................................................. 147
13.2.2 Flow rate indication is not correct.................................................................................................. 148
13.2.3 Flow rate indication is not stable. .................................................................................................. 149
13.2.4 The switches become inoperable.................................................................................................. 150
14. Principle of Operation.......................................................................................................................................... 151
15. Specifications....................................................................................................................................................... 152
15.1 Specifications .............................................................................................................................................. 152
15.2 Model Number Table................................................................................................................................... 155
16. Outline Drawing.................................................................................................................................................... 156
16.1 LF620F Type............................................................................................................................................... 156
16.2 LF622F Type............................................................................................................................................... 157
Appendix 1 Reverse Lookup of Functions based on Applications .......................................................................... 158
Appendix 2 Factory Default/ Standard Values ........................................................................................................... 160
Appendix 3 System Block Diagrams........................................................................................................................... 162
㸫 10 㸫
6 F 8 A 0 9 2 8 1. Product Inspection and Storage
1.1 Product Inspection
LF62F 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 manual -------------------------- One 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 manual -------------------------Once each for the converter and detector
/))
For a converter unit only
Electromagnetic flowmeter converter -------------------------------------------- One unit
Instruction manual -------------------------------------------------- One for the converter
/))
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 Storage
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:
x Humidity range: 10 to 90% RH (no condensation)
x Storage temperature: - 13 to 149°F (-25 to +65Υ)
(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.
㸫 11 㸫
6 F 8 A 0 9 2 8 2. Overview
The LF620F and LF622F electromagnetic flowmeter converter can be use in the following
hazardous (classified) locations.
ClassϨ, Division 2, Groups A, B, C and D,
Classϩ, Division 2, Groups E, F and G
ClassϪ
This product is a converter used for electric flowmeters that measure the volumetric flow rate of conductive
fluid using Faraday's law of electromagnetic induction.
You can bring out the functions of the converter when you place it in the converter housing you
prepare and use it in combination with a fluid rate measurement detector.
The converter sends out a signal to drive the detector exciting coil, which generates a magnetic field inside
the detector. The converter receives the signal electromotive force obtained by the detector, as signal
electromotive force in proportion to the generated flow rate in the fluid using Faraday's law of
electromagnetic induction. After carrying out operation, the converter converts the signal electromotive
force to an analog signal instrumentation unified signal output and displays the status, as a flow rate value.
Features
With a linear relationship between the flow rate and output signal, the electromagnetic flowmeter is
featured as an easy-to-read indicator. In addition to this feature, it has the following outstanding features:
(1) Wide flow velocity range setting, such as a flow velocity range of 0~0.1 and 0~10m/s, is achieved.
(2) The unique Noise-Sentry filtercircuit and its advanced Arithmetic Logic (ALU) enables you to
obtain a stable output.
(3) Full graphic electronically rotatable LCD that enables display of a large amount of information
x With a large amount of a maximum of 9 characters x 7 lines, you can easily check various
displays including bar graphs and alarm indications.
x The backlight allows you to read the indicator easily.
(4) Use of infrared switches
x Use of infrared switches allows you to perform various operations, without opening the converter
housing cover.
(5) Intelligent functions
*1
x The widely used HART protocol communications system is used as a standard feature.
*2
x This product supports PROFIBUS communication by option.
*3
x This product supports Modbus communication by option.
* 1 HART protocol:
“HART” stands for Highway Addressable Remote Transducer and is a communication protocol
recommended by HCF (HART communication Foundation) for industrial sensors.
* 2 PROFIBUS:
PROFIBUS, which stands for PROCESS FIELDBUS, is a kind of field bus that is approved by
nternational standard IEC61158. The electromagnetic flowmeter supports PRFIBUS PA for process
automation.
*3 Modbus
Modbus Protocol is the communication protocol that Modicon Inc. (AEG Schneider Automation
International S.A.S.) developed for PLC
㸫 12 㸫
6 F 8 A 0 9 2 8 3. Names of Parts
IMPORTANT
The cable connections are not provided in the conduit port of this apparatus.
Please prepare yourself for the cable connections, which could be used in Division2 hazardous locations.
3.1 Appearance
3.1.1 Appearance of LF620F Type
/)))
Display section
Converter case
Control key
(Control panel)
Converter
Converter installation screw
Ground terminal
Detector
Figure 3.1.1
Appearance of LF620F
㸫 13 㸫
Arrow nameplate
6 F 8 A 0 9 2 8 3.1.2 Appearance of LF622F Type
/))
Display section
Converter installation screw
Converter case
Control key
(Control panel)
for excitation cable
Ground terminal
for signal cable
for power cable
for signal cable
Figure 3.1.2
Appearance of LF622F
㸫 14 㸫
for flow rate signal cable
6 F 8 A 0 9 2 8 3.2 Construction of the terminal blocks
3.2.1 Terminal Block Construction of LF620F Type
When you remove the terminal block cover shown in the figure "Appearance of LF620F and LF622F
Type", you can see the converter terminal block as shown below.
CAUTION
/)))
/))
The label shown left is placed near the terminal board
for power supply to this equipment.
Be alert to electric shock.
Table 3.2.1 Terminal Block Connections
Symbol
L1(+)
L2(-)
GND
FG
AO(+)
AO(-)
DO1
DO2
DI
COM
Details
Power supply terminal
Internal grounding terminal
Current output terminal
Or PROFIBUS terminal*
Digital Output terminal
Or Modbus terminal*
Digital Input terminal
Or Modbus terminal*
Digital I/O common
Or Modbus terminal*
A
B
Detector connection terminals
G
(only used for LF622F separate type
X
converter)
Y
E
*Available when the optional communication function is
included
Figure 3.2.1
Terminal Block Construction of LF620F and LF622F
㸫 15 㸫
6 F 8 A 0 9 2 8 4. Installation
Safety Precautions for Installation
㼃㻭㻾㻺㻵㻺㻳
Do not activate live circuits under environment of explosive atmospheres.
Live part of electric circuit or a high temperature department can cause explosion.
DON’T
Do not use parts of other products.
Protective performance degradation for hazardous location can cause explosion.
DON’T
Do not activate circuits While assembly of all components is not over.
Protective performance degradation for hazardous location can cause explosion.
DON’T
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
3S8A2676,3S8A2677 (Refer to Appendix 2.).
Unsuitable conduit connections for hazardous location can cause explosion.
DO
CAUTION
Turn off mains power before working
on pipes
Working on pipes while
power is applied can cause
electric shock.
Use an appropriate device to carry and install
the LF620F and LF622F.
If his product falls to the ground,
injury, or
malfunction of or damage to the
DO
product, can be caused.
Do not modify or disassemble the
LF620F and LF622F unnecessarily.
Ground the LF620F and LF622F
independently from power equipment.
ohm or less ground resistance)
DO
Modifying or
disassembling this product
can cause electric shock,
malfunction or damage to
DON’T
this product.
Do not work on piping and wiring
with wet hands.
Wet hands may result in
electric shock
DO
(100
Operating this product without
grounding can cause electric shock
or malfunction.
The label shown left is placed near
the terminal board for power supply
to this equipment.
Be alert to electric shock.
DON’T
㸫 16 㸫
6 F 8 A 0 9 2 8 4.1 Notes on Selecting the Installation Location
This product is designed for the following environment.
࣭Indoor and outdoor installation
࣭Ambient temperature:- 4 to 140°F (-20 to +60Υ)
࣭Altitude:Up to 2000m
࣭Humidity range:10 to 90%(no condensation)
࣭Regulation of power voltage:s10%
࣭Pollution degree 2
࣭Structure:IP67 and NEMA 4X
Do not store or install the flowmeter in :
1.
2.
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).
Where there is direct sunlight.
3.
4.
5.
6.
7.
Where excessive vibration or mechanical shock occurs.
Where high temperature or high humidity conditions obtain.
Where corrosive atmospheres exist.
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. Places of too great an elevation or constricted areas where clearance for installation or
maintenance work is not provided.
9. 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.
/))
10. Places where there is following factors.
یFactors to impede infrared switch to operate properly
࣭Intense light such as direct sunlight and reflected sunlight by window glass or metal plate
࣭Place where brightness changes suddenly such as lighting being turned ON/OFF
࣭Dense smoke or steam near the control panel
࣭Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and haze due to
their attachment
࣭Light reflecting object near the control panel, or reflecting object such as metal plate placed opposing
to the control panel
When any of above factors is considered, take a measure for the proper operation of infrared switch such
as to place a cover or to secure a space for at least a person to stand in front of the control panel.
When unable to avoid above factors, operate the EMF converter removing the factor by covering the
control panel by hand so that light does not shine on it, by cleaning those attached on the control panel,
or by standing in-between the reflecting object and the control panel to block the light.
11. When using generator as a power supply, please power-up after this device after the output of the
generator is stable.
㸫 17 㸫
6 F 8 A 0 9 2 8 4.2 How to Install
4.2.1 LF620F Type
The LF620F type converter is used as one united body. The LF620F type is not installed by itself.
/)))
For how to install the LF620F type converter and a detector, check the type of the combined detector and
follow the instruction manual for the relevant detector.
4.2.2 LF622F Type
The LF622F type can be installed on a wall or to a pipe stand. Install the converter so that the front of
the cover is positioned on the vertical plane. Be sure to install it so that the conduit opening of the
converter will face towards the bottom.
/))
Figure 4.1 shows examples of installation to a panel and wall. Figure 4.2 shows an example of installation
to a pipe stand.
㸫 18 㸫
6 F 8 A 0 9 2 8 Unit : inch (mm)
Panel or wall mounting dimensions
Figure 4.1
Examples of Installation to Panel and Wall
㸫 19 㸫
6 F 8 A 0 9 2 8 Unit : inch (mm)
M10U bolt
50A pipe (2B pipe) etc.
Figure 4.2
Example of Pipestand Mounting
㸫 20 㸫
6 F 8 A 0 9 2 8 5. Wiring
Notes on wiring
㼃㻭㻾㻺㻵㻺㻳
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE UNLESS LOCATION IS KNOWN TO
BE NONHAZARDOUS.
Live part of electric circuit or a high temperature department can cause explosion.
DON’T
Do not activate circuits while assembly of all components is not over.
Protective performance degradation for hazardous location can cause explosion.
DON’T
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 3S8A2676,3S8A2677
(Refer to Appendix 2.).
Unsuitable conduit connections for hazardous location can cause explosion.
DO
㸫 21 㸫
6 F 8 A 0 9 2 8 CAUTION
Install a switch and fuse to isolate the
LF620F and LF622F from mains power.
Power supply from mains
power can cause electric shock
or circuit break-down.
Turn off mains power before conducting
wiring work.
Wiring while power is applied
can cause electric shock.
Do not work on piping and wiring with
wet hands.
Ground the LF620F and LF622F
independently from power equipment.
(100 ohm or less ground resistance)
Operating this product without
grounding can cause electric
shock or malfunction.
DO
DO
Wet hands may result in
electric shock
DON’T
Do not conduct wiring work with bare
hands.
DON’T
Remaining electric charge
even if power is turned off can
still cause electric shock.
DO
For the power supply wiring and grounding
wiring, use crimping terminals with
insulated sleeve.
There is a risk of electric shock
due to drop-off or loosing, and a
risk of fire and equipment
DO
trouble due to heat generation.
Do not modify or disassemble the
LF620F and LF622F unnecessarily.
Modifying or
disassembling this product can
cause electric shock,
malfunction of or damage to
DON’T
this product.
The label shown left is
placed near the power
supply terminal on the
converter.
Be alert to electric shock.
Flowmeter accuracy may be affected by the way wiring is executed. Proceed with correct wiring taking
the precautions in following pages.
㸫 22 㸫
6 F 8 A 0 9 2 8 CAUTION
(1) Select the cable run location so they are away from electrical equipment (motors, transformers,
or radio transmitters) which causes electromagnetic or electrostatic interference.
(2) Deterioration of flowmeter circuit insulation occurs if the converter interior or cable ends get wet or
humidified. This in turn causes malfunction of flowmeter or noise problems. Avoid a rainy day
if the flowmeter is to be installed outdoors. Even indoors, prevent water from splashing over the
flowmeter. Try to finish the wiring as quickly as possible
(3) The converter has a surge arrestor/protector installed inside. Therefore, do not conduct a
withstand voltage test for the converter. To check the insulation of the converter, use a voltage
of 250Vdc or less.
(4) After wiring, be sure to install the terminal block protection cover.
(5) Because the excitation cable and flow rate signal cable transmit very delicate signals, pass each of
them separately through a thick steel conduit tube, keep them away from the large current wiring as
far as possible, and do not install them in parallel.
/))
5.1 Cables
Use the kind of cables shown in Table 5.1 to wire the converter.
Table 5.1 Installation Cables
Name
Nominal
cross-sectional
area
Cable name
Finished
outer
diameter
Description
11~13mm
CVV JIS C
3401,IEC60695,IEC607
54,IEC60227,IEC60245
or equivalent
Power cable
3-core vinyl sheathed cable or 2-core vinyl
sheathed cable
Output signal
cable
Use a shielded cable of finished outer diameter 9 to 14mm and nominal
cross-sectional area 1.25mm2.
CVV-S JIS -258-C or
equivalent
Flow rate
signal cable
2-core shielded chloroprene cabtyre cable
2 mm²
0.75 mm2
11~13mm
2PNCT-S
JIS C 3327 or equivalent
2 mm2
1.25 m2
11~13mm
2PNCT
JIS C 3327 or equivalent
/))
Excitation
cable
3-core chloroprene cabtypre cable
/))
㸫 23 㸫
6 F 8 A 0 9 2 8 5.2 External Device Connections and Grounding
5.2.1 LF620F Type
The terminal board connections of the integral type converter LF620F are shown in Figures 5.2.1.1 and
5.2.1.2. Proceed with wiring as described in Section 5.4, “Wiring Procedure.”
/)))
㻱㼤㼠㼑㼞㼚㼍㼘㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻌㼠㼑㼞㼙㼕㼚㼍㼘
㻵㼂㻌㼣㼕㼞㼑㻌㻡㻚㻡㼙㻞㻌㼛㼞㻌㼙㼛㼞㼑
㻸㻝㻔㻗㻕 㻸㻞㻔㻙㻕
㻲㻳 㻳㻺㻰
㻳㼞㼛㼡㼚㼐㼕㼚㼓㻌㼣㼕㼠㼔㻌㻝㻜㻜㻌㼛㼔㼙㻌㼛㼞㻌
㼘㼑㼟㼟㻌㼓㼞㼛㼡㼚㼐㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻺㻻㼀㻱
㻼㼛㼣㼑㼞㻌㼟㼣㼕㼠㼏㼔
㻔㻱㼤㼠㼑㼞㼚㼍㼘㻌㼐㼛㼡㼎㼘㼑㻙
㼜㼛㼘㼑㻌㼜㼛㼣㼑㼞㻌㼟㼣㼕㼠㼏㼔㻕
㻺㻻㼀㻱
䞉㼃㼔㼑㼚㻌㻟㻙㼏㼛㼞㼑㻌㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻌㼕㼟㻌㼡㼟㼑㼐㻘㻌㻌
㻌㼐㼛㻌㼚㼛㼠㻌㼓㼞㼛㼡㼚㼐㻌㼒㼞㼛㼙㻌㼠㼔㼑㻌㼑㼤㼠㼑㼞㼚㼍㼘㻌㻌
㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻌㼠㼑㼞㼙㼕㼚㼍㼘㻚㻌㻼㼑㼞㼒㼛㼞㼙㻌
㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻌㼍㼠㻌㼠㼔㼑㻌㼞㼑㼏㼑㼕㼢㼕㼚㼓㻌㼟㼕㼐㼑㻌
㻌㼛㼚㼘㼥㻚
䞉㻻㼚㼘㼥㻌㼣㼔㼑㼚㻌㼍㻌㻞㻙㼏㼛㼞㼑㻌㼜㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻌㼕㼟㻌
㻌㼡㼟㼑㼐㻘㻌㼜㼑㼞㼒㼛㼞㼙㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻌㼒㼞㼛㼙㻌㼠㼔㼑㻌
㻌㼑㼤㼠㼑㼞㼚㼍㼘㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻌㼠㼑㼞㼙㼕㼚㼍㼘㻚
㻼㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥
㻼㼛㼣㼑㼞㻌㼏㼍㼎㼘㼑㻔㻯㼂㼂㻕
㻳㼞㼛㼡㼚㼐㼕㼚㼓㻌㼣㼕㼠㼔㻌㻝㻜㻜㻌㼛㼔㼙㻌㼛㼞㻌
㼘㼑㼟㼟㻌㼓㼞㼛㼡㼚㼐㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻺㻻㼀㻱
㻭㻻㻔㻗㻕 㻰㻻㻞 㻰㻻㻝
㻭㻻㻔㻙㻕 㻰㻵 㻯㻻㻹
Figure 5.2.1.1 Power Cable Wiring of the LF620F Integral Type Converter
㻰㼕㼓㼕㼠㼍㼘㻌㼛㼡㼠㼜㼡㻝㻺㻻㼀㻱㻝
㻰㼕㼓㼕㼠㼍㼘㻌㻵㻛㻻㻌㼏㼛㼙㼙㼛㼚㻺㻻㼀㻱㻝
㻰㼕㼓㼕㼠㼍㼘㻌㼛㼡㼠㼜㼡㻞㻺㻻㼀㻱㻝
㻰㼕㼓㼕㼠㼍㼘㻌㼕㼚㼜㼡㼠㻺㻻㼀㻱㻝
㻯㼡㼞㼞㼑㼚㼠㻌㼛㼡㼠㼜㼡㼠㻔㻠㻌㼠㼛㻌㻞㻜㼙㻭㼐㼏㻕㻺㻻㼀㻱㻞
㻵㻛㻻㻌㼏㼍㼎㼘㼑㻔㻯㼂㼂㻙㻿㻕
㻺㻻㼀㻱㻦
㼀㼛㻌㼍㼢㼛㼕㼐㻌㻞㻙㼜㼛㼕㼚㼠㼟㻌㼓㼞㼛㼡㼚㼐㼕㼚㼓㻘㻌
㼓㼞㼛㼡㼚㼐㻌㼠㼔㼑㻌㼟㼔㼕㼑㼘㼐㻌㼛㼒㻌㼠㼔㼑㻌
㼛㼡㼠㼜㼡㼠㻌㼏㼍㼎㼘㼑㻌㼎㼍㼟㼕㼏㼍㼘㼘㼥㻌㼍㼠㻌㼠㼔㼑㻌
㼞㼑㼏㼑㼕㼢㼕㼚㼓㻌㼟㼕㼐㼑㻚
㻺㻻㼀㻱㻝
㼃㼔㼑㼚㻌㼍㻌㼏㼛㼚㼢㼑㼞㼠㼑㼞㻌㼕㼟㻌㻹㼛㼐㼎㼡㼟㻌㼛㼜㼠㼕㼛㼚㻌
㼟㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻘㻌㼕㼠㻌㼕㼟㻌㼡㼟㼑㼐㻌㼒㼛㼞㻌㼏㼛㼙㼙㼡㼚㼕㼏㼍㼠㼕㼛㼚㻚㻌
㻺㻻㼀㻱㻞
㼃㼔㼑㼚㻌㼍㻌㼏㼛㼚㼢㼑㼞㼠㼑㼞㻌㼕㼟㻌㻼㻾㻻㻲㻵㻮㼁㻿㻌㼛㼜㼠㼕㼛㼚㻌
㼟㼜㼑㼏㼕㼒㼕㼏㼍㼠㼕㼛㼚㻘㻌㼕㼠㻌㼕㼟㻌㼡㼟㼑㼐㻌㼒㼛㼞㻌㼏㼛㼙㼙㼡㼚㼕㼏㼍㼠㼕㼛㼚㻚㻌
Figure 5.2.1.2 Input and Output Cables Wiring of the LF620F Integral Type Converter
* Use a heavy copper braid or wire (cross-sectional area 5.5 mm2 minimum) to ground the terminal
and make it as short as possible as shown in Figures 5.2.1.1 and 5.2.1.2 for grounding.
Also, Avoid a common ground where earth current may flow. (An independent ground is
preferable.)
* The converter has no power switch. Install the power switch at the system side.
㸫 24 㸫
6 F 8 A 0 9 2 8 5.2.2 LF622F Type
The terminal board connections of the separate type converter LF622F are shown in Figure 5.2.2. Proceed
with wiring as described in Section 5.4, “Wiring Procedure.” Refer to Figures 5.2.1.1 and 5.2.1.2 for the
external wiring of the power cable and the input and output signal cable (for current output and digital
/))input and output).
㻿㼕㼓㼚㼍㼘㻌㼏㼍㼎㼘㼑
㻔㻞㻙㼏㼛㼞㼑㻌㼟㼔㼕㼑㼘㼐㼑㼐㻌㼏㼍㼎㼠㼥㼜㼞㼑㻌㼏㼍㼎㼘㼑㻕
㼅
㼄
㻱
㻳
㻮
㻭
㻮㼘㼍㼏㼗
㼃㼔㼕㼠㼑
㻿㼔㼕㼘㼑㼐
㼠㼛㻌㻰㼑㼠㼑㼏㼠㼛㼞
㻳㼞㼛㼡㼚㼐㼕㼚㼓
㻮㼘㼍㼏㼗 㻺㻻㼀㻱㻦
㼃㼔㼕㼠㼑 㻼㼘㼑㼍㼟㼑㻌㼞㼑㼒㼑㼞㻌㼠㼛㻌
㼀㼔㼕㼏㼗㻌㼏㼛㼚㼐㼡㼕㼠㻌㼠㼡㼎㼑
Figure 5.2.2
㻱㼤㼏㼕㼠㼍㼠㼕㼛㼚㻌㼏㼍㼎㼘㼑
㻔㻟㻙㼏㼛㼞㼑㻌㼏㼍㼎㼠㼥㼜㼞㼑㻌㼏㼍㼎㼘㼑㻕
㼕㼚㼟㼠㼞㼡㼏㼠㼕㼛㼚㻌㼙㼍㼚㼡㼍㼘㻌㼛㼒㻌
㼐㼑㼠㼑㼏㼠㼛㼞㻌㼍㼎㼛㼡㼠㻌
㼏㼛㼚㼚㼑㼏㼠㼕㼛㼚㻌㼠㼛㻌㼐㼑㼠㼑㼏㼠㼛㼞㻚
External Wiring of the LF622F Separate Type Converter
㸫 25 㸫
6 F 8 A 0 9 2 8 5.3 Notes on Wiring
5.3.1 Notes on Instrumentation-Converter Wiring
x To avoid 2-point grounding, ground the shield of output cable basically at the receiving side.
x Use a grounding wire of IV wire 5.5mm2 or more. The size of the external grounding terminal screws is M4.
Do not share a grounding wire with other instruments where grounding current may flow. (An
independent grounding is preferable.)
x Power cable
When a 3-core cable is used: Ground with the FG terminal.
When a 2-core cable is used: Use an external grounding terminal and make the cable as short as possible.
Note that, for a replacement from the Toshiba electromagnetic flowmeter converter LF220 type, the cable
grounding position differs.
5.3.2 Notes on Wiring of the LF622F Type
x The detector is shipped with a flow rate signal cable and excitation cable. Be sure to use those cables coming
with the detector.
/))
Note: When the cable length exceeds 30m, cables may not be supplied. Check whether the cable is
supplied with the specs.
x The allowable cable length between the detector and converter varies depending on the conductivity of the
operating fluid. Refer to the instruction manual of the combined detector.
x When connecting with the detector, wire the cables in the order of the excitation cable and flow rate signal
cable.
x Because the input cables transmit very delicate signals, pass the excitation cable and input signal cable
separately through a steel conduit tube, keep them away from the large current wiring as far as
possible, and do not install them in parallel.
x When replacing the flow rate signal cable and excitation cable, also refer to the instruction manual of the
relevant detector. Order the detector terminal box cover gasket and cable connection gasket from Toshiba or a
Toshiba distributor and be sure to replace the gasket.
㸫 26 㸫
6 F 8 A 0 9 2 8 x Wiring
IMPORTANT
The cable connections are not provided in the conduit port of this apparatus.
Please prepare yourself for the cable connections which could be used in Division2 hazardous locations.
CAUTION
Do not wire cables and replace parts when
power is supplied.
DON’T
Do not work on piping and wiring with wet hands.
Wiring work and replacing
parts in the power-on state
may cause electric shock.
Wet hands may result in electric
shock.
DON’T
5.3.3 Grounding
(1) Grounding the LF620F type
/)))
Ground as shown in Figure 5.3. Make the grounding wire as short as possible. Use grounding wire
material of IV wire 5.5mm2 or more. Do not share grounding wire with other instruments where
grounding current may flow. (An independent grounding is preferable.)
Conductive material pipe
Example: Metal, etc.
Grounding terminal
Piping of non-conductive material
Example: Resin or metal piping whose
inside is resin-lined, etc.
Grounding wire
x If the piping material is conductive, connect
the grounding wires to the both ends of the
piping flange.
Figure 5.3
grounding resistance
x If the piping material is non-conductive, perform 100Ȑ or more
grounding resistance Ȑ or less.
Grounding the LF620F Type
㸫 27 㸫
6 F 8 A 0 9 2 8 (2) Grounding the LF622F type
/))Ground the external grounding terminal of the detector and the FG terminal of the converter (or external
grounding terminal of the converter) securely (grounding resistance 100Ȑ or lower). Use grounding
wire material of IV wire 5.5mm2 or more. Do not share a grounding wire with other instruments
where grounding current may flow. (An independent grounding is preferable.)
If it is difficult to perform grounding work at the detector side because of a pit installation or other reasons,
use a 3-core cable for the excitation cable and connect the E terminal of the detector to the E terminal of the
converter. (The E terminal of the converter is internally connected with the FG terminal and the converter
case.)
6KLHOGWZLVWHG
,QSXWVLJQDOFDEOH
6KLHOGWZLVWHG
&RQYHUWHU
WHUPLQDOEORFN
6KLHOGWZLVWHG
'HWHFWRUWHUPLQDO
EORFN
㻭
㻳
㻮
㼄
㻱
㼅
,QSXWVLJQDOFDEOH
&RQYHUWHU
WHUPLQDOEORFN
'HWHFWRUWHUPLQDO
EORFN
㻭
㻳
㻮
㼄
㻱
㼅
NOTE: Please
refer to instruction
manual of detector
about connection
to detector.
㻲㻳
NOTE: Please
refer to instruction
manual of detector
about connection
to detector.
㻲㻳
([FLWDWLRQFDEOH
([FLWDWLRQFDEOH
*URXQGLQJ
WHUPLQDO
*URXQGLQJ
WHUPLQDO
RKPRUOHVV
JURXQGUHVLVWDQFH
Figure 5.4 (a)
Wiring between Detector and Converter
(For grounding the detector, see Figure 5.5 below.)
Conductive material piping
Example: Metal, etc.
*URXQGLQJ
WHUPLQDO
RKPRUOHVV
JURXQGUHVLVWDQFH
Figure 5.4 (b)
Wiring between Detector and Converter
(when grounidng of the detector is difficut)
Non-conductive material piping
Example: Resin product or metal piping whose inside is resin lined
Grounding wire
Grounding terminal
Grounding
wire
Grounding wire
(100 ohm or less
ground resistance)
x If the piping material is conductive, connect the
grounding wires to the both ends of the piping flange.
Figure 5.5
6KLHOGWZLVWHG
x If the piping material is non-conductive, perform grounding
resistance ȍ or less.
Grounding the Separate Type Detector
㸫 28 㸫
6 F 8 A 0 9 2 8 5.3.4 Terminal Treatment of Cables
Follow the procedures below to treat the terminals (at the converter side) of various cables and install the
cables to the terminal block. Use appropriate cables based on the description in Section 5.1 "Cables."
Crimp a round type insulated crimp-type terminal to the end of the cables.
(1) Power cable, current output cable, and digital I/O cables
The necessary cables should be ordered from the person responsible for the installation. Strip the sheath of
each conductor as shown in Figure 5.6 and attach a crimping terminal with insulated sleeve to it. The size
of the crimping terminal is M3.5.
x Connect the power cable to terminal blocks L1 and L2.
x Connect the current output cable to terminal blocks + and -.
x Connect the digital I/O cable to terminal blocks D1, D01, D02 and COM, as required.
M3.5 Crimping terminal
25-45mm
Figure 5.6
Terminal Treatment of Power Cable, Current Output Cable and Digital I/O cable
(2) Excitation cable
/)) Strip the sheath from the end of each conductor as shown in Figure 5.7, attach an M3.5 crimping terminal
with insulated sleeve, and connect it to the terminal blocks X and Y. Connect the red conductor to terminal
block E.
M3.5 crimping terminal
X Black
E Red
Y White
25-45mm
Figure 5.7
Terminal Treatment of Excitation Cable
㸫 29 㸫
6 F 8 A 0 9 2 8 (3) Connecting the input signal cable:
/)) Strip the sheath from the end of each conductor of a 2-core individually shielded cable as shown in Figure
5.9. Twist those shields and cover them with a thermal contraction tube or vinyl tube not to make contact
with the case or core wires. Then attach an M3.5 crimping terminal with insulated sleeve as shown in
Figure 5.8. Connect a crimping terminal to the A and B terminals on the terminal block and connect to each
G terminal of the detector and converter.
M3.5 crimping terminal
㻌
Thermal contraction tube or vinyl
tube
A Black
G Shield
B White
25-45mm
Figure 5.8
ە
Terminal Treatment of Flow Rate Signal Cable
Notes on signal cable shield processing work
When stripping an external sheath, intermediate and insulated sheath, be careful not to scratch or cut the
internal conductors and shield mesh. Do not disjoint the shield mesh but treat it as shown in Figure 5.9.
Coated wire
Coated wire
Shield Mesh
a. Open the shield mesh with a pair of tweezers or
the like.
b. Pull out the internal coated wires from the
hole of the shielded mesh.
Coated wire
c. Pull out all internal coated wires and extend the
shield mesh wire.
Figure 5.9
Treating the Signal Cable Shield Mesh
㸫 30 㸫
6 F 8 A 0 9 2 8 5.3.5 Cable Connection
(1) Connect and install the terminal-treated cables to the terminal block by the following procedure.
Connect the cables to the terminal block securely. A loose connection may cause incorrect
measurement. After connecting a cable, try to pull it to check whether it has been connected
securely.㻌
Referring to Section 5.2 "External Device Connections and Grounding", connect each cable to the
terminal block. Tighten the screws of the terminal block tightly to ensure the secure connection. A
loose connection may cause incorrect measurement. After connecting a cable, try to pull it to see
whether it has been connected securely.
Phillips screwdriver
The appropriate torque for tightening
the terminal board screw is 1.2 Nxm.
Terminal block
Figure 5.10
Connecting a Cable to Terminal Block
㸫 31 㸫
6 F 8 A 0 9 2 8 5.4 Digital I/O Connections
Digital I/O terminals consist of contact output terminals (DO1 and DO2), voltage signal input
terminal (DI), and signal common terminal (COM). Each terminal (DO1, DO2 and DI) is isolated from
internal circuits. Terminal (COM) is the signal common for the other three terminals (DO1, DO2 and DI).
Functions can be assigned for each terminal with the LCD control keys. See Chapter 10, “Digital I/O
Functions.”
To connect an electromagnetic relay or counter to the contact output terminal (DO1 or DO2), put a
surge-absorbing diode into the input circuit of the relay or counter. See Figure 5.11 for an example of
electromagnetic counter connection.
Internal part of the converter
Transistor Open
Collector
Solidstate
Relay
Note 2
Photocoupler Note 2
Resistor
&20
Power
Supply
24VDC
Figure 5.11
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Electromagnetic 㻙
counter
㻗
Noter 3
Surge-absorbing
diode
Note 1
Electromagnetic Counter Connection Example
Note 1:
Use a surge-absorbing diode of the rating: current rating 1A and voltage rating 200 V
minimum.
Note 2:
In the case of standard specification (digital input DI, no output DO2), the semiconductor contact
point, photo coupler and resistor are not built in. Leave DI and DO2 disconnected.
Note 3: When a power supply-built-in electronic counter is used, the serge-absorbing diode is not
required.
㸫 32 㸫
6 F 8 A 0 9 2 8 6. Operation
CAUTION
Do not touch the terminal board when power
is supplied.
Touching the terminal board
when power is supplied can
cause electric shock.
Do not touch the main body when high
temperature fluid is being measured.
The fluid raises the main body
temperature and can cause burns.
DON’T
DON’T
6.1 Preparatory check
Follow the procedure described below to prepare before starting the flow measurement (described with
regard to the entire flowmeter).
System Check
Check the items listed below
Check the wiring between the converter and related instruments.
Make sure all the bolts of connection flanges on which the flowmeter is mounted
securely tightened.
Make sure the direction of flow arrow is in accordance with actual flow.
Make sure the flowmeter is grounded with 100 ohm or less ground resistance.
Make sure the converter housing covers are securely tightened.
Placing System On-Stream
Let the fluid go through the detector pipe. (Note 1)
When the detector is filled with the fluid, stop the fluid and keep it still in the detector pipe.
Supplying Electric Power
Make sure the power supply is as specified.
Checking Converter Parameters
Check the configuration parameter settings. Refer to Chapter 7, “LCD Display and
Controls,” Chapter 8, “Configuration Parameter Setting,” and Chapter 11,
“Communications Function.”
Zero Adjustment
Wait for 30 minutes to warm up the flowmeter. Then making sure the fluid holds still in the
detector pipe before starting the zero adjustment.
Refer to 6.2, “Zero Adjustment.”
On-line measurement
After checking the items and conducting the zero adjustment as listed above, let the fluid go
through the detector pipe. Output (4–20 mA dc) directly proportional to the flow rate can be
obtained.
㸫 33 㸫
6 F 8 A 0 9 2 8 Note 1: If the detector pipe is not filled with the fluid to be measured, the flow rate will be
indefinite and unable to be measured. Before using the flowmeter, be sure to fill the
detector pipe the fluid to be measured.
6.2 Zero Adjustment
To conduct zero adjustment of the flowmeter, the fluid in the detector pipe must be held still.
There are three different ways to start the zero adjustment:
(1) Pressing a combination of control keys for the model with LCD display
See 8.2.14 “Still Water Zero Adjustment”
(2) Sending a command signal from a HART communications device (a communication
device such as configurator BF100 is required)
See the instruction manual of hand-held terminal you use.
(3) PROFIBUS communication (a communication device for PROFIBUS is required)
See the instruction manual of communication device you use.
(4) Modbus communication (a communication device for Modbus is required)
See the instruction manual of communication device you use.
㸫 34 㸫
6 F 8 A 0 9 2 8 7. LCD Display and Controls
7.1
Name and Function of Each Part of LCD Display
The LDC display and infrared switches (hereafter, called "control key") in front of the converter allows
you to view or set various constants such as measured values and parameters.
LCD Display
LCD Display
/))
/)))
LCD Display
Control key
(Control panel)
Control key
(Control panel)
Fig. 7.1 Display section of LF620F
Fig. 7.1 Display section of LF622F
Instructions
The operation principle of infrared switch is to irradiate infrared to the front of control panel and detect the
reflection from finger when operating.
Normal operation is impeded depending on the conditions such as disturbing light from surroundings or
stain attached to the control panel. When unable to avoid such condition, operate the EMF converter in the
following manner.
Remove the factor to impede proper operation of infrared switch as below:
࣭Cover the control panel by hand so that light does not shine on it
࣭Clean the stain attached on the control panel
࣭Clean the stain on the finger or the gloves to operate the EMF converter, or wear gloves in light color
࣭When there is a reflecting object placed opposing to the control panel, stand in-between the reflecting
object and the control panel to block the light
Following are considered as the factors to impede infrared switch to operate properly.
࣭Intense light such as direct sunlight and reflected sunlight by window glass or metal plate
࣭Place where brightness changes always such as ON/OFF of lighting
࣭Dense smoke or steam near the control panel
࣭Those attached on the control panel such as rain (dew drop), snow, ice, mud and oil, and haze due to
their attachment
࣭Operation of the control panel by hands wearing gloves in dark color or stained fingers and gloves
࣭Light reflecting object near the control panel, or reflecting object such as metal plate placed opposing
to the control panel
㸫 35 㸫
6 F 8 A 0 9 2 8 Ɣ
LCD electronically rotatable display
The backlit display provides an easy-to-read indication even under poor lighting conditions.
Instantaneous flow rates or totalized flow in the measurement mode or configuration parameters in the
setting mode can be displayed. (Number of LCD display dots: 128 x 128 dots)
ձ
ղ
ձ Measured Value Display 1
Displays a measured value of the type the operator has selected.
ղ Measured Vale Display 2
Displays a measured value or setting value of the type the
operator has selected or displays an error message. If an error
message appears, the measured value or setting value cannot be
displayed (error message-precedence display).
㸫 36 㸫
6 F 8 A 0 9 2 8 Ɣ
Setting switch
The control keys allow you to perform converter control and setting, without opening the
converter housing.
These three controls keys function differently depending on the current display screen.
The functions of these control keys are displayed on the display screen.
In this product, the display method can be changed according to the converter installation
direction. For example, if the control keys are installed so that they are located above the display, they
can be displayed appropriately as shown below, by changing the display method.
Refer to 8.2.30 Switch Position Setting for the setting procedures.
Setting switch at the lower section (standard)
Setting switch at the upper section
Setting switch at the left
㸫 37 㸫
Setting switch at the right
6 F 8 A 0 9 2 8 Display Format
In the measurement mode, the measured data is displayed using the menu items set by the Display 1
(DSPL1) and Display 2 (DSPL2).
(For display settings, see 8.2.6 "Display Setting.")
࣭Flow rate / Flow velocity display
Numeric value㺃㺃㺃7 digits maximum including a decimal point are
displayed. (Up to 9999999)
4 significant digits (for the set span)
Unit㺃㺃㺃
7 digits maximum are displayed.
Flow direction㺃㺃㺃In the case of reverse direction, “㸫”is displayed.
In the case of forward direction, not displayed.
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࣭Totalized flow count display
Numeric value㺃㺃㺃8 digits maximum
(Up to 99999999)
)
5
'
is blinked
Operation㺃㺃㺃 Counting in progress:
Counting stopped: ڦis displayed
Counting direction㺃㺃㺃
In the case of forward flow direction, "FRD" is displayed.
In the case of reverse flow direction, "REV" is displayed.
࣭Totalized flow volume display
)
5
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Numeric value㺃㺃㺃8 digits maximum including a decimal point are
displayed. (Up to 99999999)
Displayed to the least significant digit of the set
count rate.
Unit㺃㺃㺃
3 digits maximum are displayed.
Operation㺃㺃㺃 Counting in progress:
is blinked
Counting stopped: ڦis displayed
Counting direction㺃㺃㺃
In the case of forward flow direction, "FRD" is displayed.
In the case of reverse flow direction, "REV" is displayed.
࣭Totalized difference flow volume display
P
Numeric value㺃㺃㺃8 digits maximum including a decimal point are
displayed. (Up to 99999999)
Displayed to the least significant digit of the set
count rate.
Unit㺃㺃㺃
3 digits maximum are displayed.
is blinked
Operation㺃㺃㺃
Counting in progress:
Counting stopped: ڦis displayed
Sign㺃㺃㺃
In the case the difference flow is in the forward direction, “+” is
displayed
In the case the difference flow is in the reverse direction, “” is
displayed
㸫 38 㸫
6 F 8 A 0 9 2 8 Note 1: Totalized flow volume and totalized difference flow volume are displayed to the least significant
digit of the set count rate.
(Example1)
When the count rate is 0.0001 m3:
When the measurement object flows through 0.0001(m3), inside counter counts 1.
Because inside counter is 8 digits at the maximum, the maximum of totalized flow
is 9999.999(m3). When inside counter exceeds the maximum, inside counter return
to 0, and continue totalization.
Inside counter(m3)
Totalized flow display(m3)
Max 8 digits
Max 8 digits (include decimal point)
0
000.0000 m3
1
000.0001 m3
1000
000.1000 m3
1000000
100.0000 m3
10000000
1000.000 m3
99999999
9999.999 m3
(Example2)
When the count rate is 10 m3:
When the measurement object flows through 10(m3), inside counter counts 1.
Because inside counter is 8 digits at the maximum, the maximum of totalized flow
is 99999999(m3). When inside counter exceeds the maximum, inside counter return
to 0, and continue totalization.
Inside counter(m3)
Totalized flow display(m3)
Max 8 digits
Max 8 digits (include decimal point)
0
00000000 m3
1
00000010 m3
1000
00010000 m3
1000000
10000000 m3
10000000
99999999 m3
99999999
99999999 m3
Note 2: Totalized difference flow volume shows the difference between the forward direction volume
and the reverse direction volume.
When the forward direction volume reaches the upper limit and returns to zero, the volume is
displayed as follows:
Forward direction volume: 1000
Reverse direction volume: -100
Difference flow volume:
900
99999999
-100
99999899
㸫 39 㸫
0
-100
-100
6 F 8 A 0 9 2 8 ࣭Percent display
Numeric value㺃㺃㺃Within the range of +125.0% to 125%,
displayed to the decimal place of 0.1%.
Unit㺃㺃㺃
"%" fixed.
* If the value goes out of the display range, an error message appears.
࣭Flow rate (When custom unit is selected)
;
;
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Numeric value㺃㺃㺃
7 digits maximum including a decimal point
are displayed. (Up to 9999999)
4 significant digits: The value is obtained by
multiplying m3/min by the set coefficient
Unit㺃㺃㺃
7 digits maximum are displayed.
(The character string that was set for the
custom unit.)
Flow direction㺃㺃㺃
In the case the flow is in reverse direction ,
“㸫” is displayed.
In the case the flow is in forward direction,
not displayed.
Identification charanter㺃㺃㺃 “” is character to show the custom unit.
࣭Range display
Numeric value㺃㺃㺃
5
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Unit㺃㺃㺃
Range㺃㺃㺃
The span of the range being used
7 digits maximum are displayed.
When custom unit is selected, identification
character “” is displayed.
The range being used is displayed as follows:
R1: Range 1
R2: Range 2
R3: Range 3
R4: Range 4
In the range display, the range currently used is displayed (any one of the ranges 1 to 4). The screen
example above shows that Range 1 is currently used.
When multi-range is selected, the displayed range changes automatically as the range used is changed.
㸫 40 㸫
6 F 8 A 0 9 2 8 ࣭Bar graph display
Bar graph can be set only for Display 2.
Graph㺃㺃㺃
The measured value is displayed in bar graph.
The left side of the graph is RL (Range Low limit) and
the right side of the graph is RH (Range High limit).
Scale marks are displayed in increments of 25% inside
the graph.
Range㺃㺃㺃
The range number currently used is displayed.
5
About Range type, percent display and percent value when bar graph is displayed
When percent display is used, the % value displayed depends on the flow direction. However,
the % value when bar graph is displayed is as shown in the table below.
Range type
Input signal
Single(forward)
Forward direction
50%
Reverse
direction 50%
Forward direction
50%
Reverse
direction 50%
Single(forward)
Bidirectional
(forward/reverse)
Bidirectional
(forward/reverse)
% value in
percent display
50%
-50%
50%
-50%
% value in
bar graph
50%
0%
50%
50%
420mA output
12mA
4mA
(Output low lim value*)
12mA
12mA
The set value in 8.2.17 “Output Low Limit Setting” will be output.
x When communications function is used
When HART communication is used, a mark is displayed in the upper field on the display.
When PROFIBUS/Modbus communication is used, if the communication is made between the
PROFIBUS or Modbus option board and the converter main board, a mark is displayed in the upper
field on the display in the same way as in HART communication, while communication between the
PROFIBUS or Modbus option board and the external bus, nothing is displayed.
Displayed when communications
function is used
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㸫 41 㸫
6 F 8 A 0 9 2 8 7.2 Basic operations
7.2.1 Mode Change
The converter provides the setting mode and calibration mode as well as the measurement mode. To change
the mode to the setting mode or to the calibration mode, push the 6(7 switch. To return to the
measurement mode, push the (6& switch from each menu.
ƔMeasurement mode:
Mode to perform flow measurement.
Flow rate or volume of process fluid is displayed and outputted.
The flowmeter first goes to this mode when power is turned on.
ƔSetting mode:
Mode to check or set various parameters.
Various setting values can be displayed on the screen but the output is
always the flow rate of process fluid as in the measurement mode.
(See 7.4 “Setting and Calibration Items List” and 8.2 “Parameter
Check / Change” for details.)
ƔCalibration mode:
Mode to check the converter circuit.
The built-in simulation signal generator circuit can be used to check the
span of the range and check the excitation current value. The current
output varies in accordance with the simulation signal. Each digital
output retains its previous state when the converter is changed to the
calibration mode.
See 7.4, “Setting and Calibration Items List” and 9, “Calibration” for
details.
㸫 42 㸫
6 F 8 A 0 9 2 8 ż)ORZRIPRGHFKDQJH
Note: When the screen is switched, let your
finger off the switch. If you keep pushing, the
mode returns to the measurement mode.
Measurement mode
OK
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Hold down only the center switch
for 3 seconds or longer. (Note)
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㸫 43 㸫
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6 F 8 A 0 9 2 8 ż3XOVHRXWSXWVHWWLQJPRGH
This mode is used to perform continuous parameter settings (automatic operation) regarding
pulse outputs. When these parameters are set, pulse output is ready to send out.
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(1) Digital Output 1 selection screen
The function for Digital Output 1 can be selected.
This screen shows functions related to pulse outputs only.
(For details of setting procedure, see 8.1.18.)
x PLS OUT (Pulse output)
x PLS FRD (Forward direction pulse output)
x PLS REV (Reverse direction pulse output)
(2) Count rate setting screen
Count rate can be set.
(For details of setting procedure, see 8.1.20.)
(3) Pulse width setting screen
When pulse width setting mode is MANUAL, the screen moves to Pulse width setting screen.
When pulse width setting mode is AUTO, the screen moves to Totalizer control screen.
(For details of setting procedure, set See 8.1.20.)
Note: Pulse width setting mode is set to AUTO when shipped from the factory.
(4) Counter control screen
This screen is used to start the totalizer.
If
(6& is pushed, the screen returns to the measurement screen. (End of pulse output
setting mode)
(For details of operation procedure, see Section 10.2.)
Note: If (6& is pushed to return to the measurement screen while automatic screen
sequence in progress, the setting items entered so far are saved.
㸫 44 㸫
6 F 8 A 0 9 2 8 ż([SODQDWLRQDERXWPRGHFKDQJH
The converter usually works continuously in the measurement mode.
If you want to set parameters or perform calibration or adjustment, you have to go to the
setting mode.
To enter the setting mode, push the center switch for 3 seconds or more in the measurement
mode.
When you push the switch for 3 seconds or more, the display unlock screen appears.
Switch operation
Display example
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To unlock the display, push the switches in
the order indicated on the screen.
The pushed switch is highlighted.
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Description
Display unlock screen
&1
17
Pushing
at the end, the display will
be unlocked and the mode change screen
appears.
6(7
Note 1: If the order of switches to push was erroneous, UNLOCK FAILURE error message
appears and the screen return to the display unlock screen.
Mode return to the measurement mode in case of the third error.
When the center switch is pushed during error message indication, mode return to the
measurement mode immediately.
Note 2: 9 shows the version number.
When the mode change screen appears, proceed as follows:
6(7
Enters the setting mode (setting configuration selection menu).
&17
Changes to the counter control screen and you can operate the totalizer.
Note: If password has been set, the password input screen appears when you move from the
mode change screen to the setting configuration selection menu (when you push 6(7
switch), or when you move to the totalizer control screen (when you push &17
switch).
㸫 45 㸫
6 F 8 A 0 9 2 8 żIncorrect password input
Protection Level 1
When the password entered is incorrect, changing of certain parameters is not allowed. In addition, the
clear operation of the totalizer cannot be used. (Totalizer start and stop operations are still allowed.)
Protection Level 2
If the password entered is incorrect, the screen will go back to the measurement mode. In addition, you
cannot enter the menu configuration selection screen as well as the totalizer screen.
Note: Levels of protection are only applicable to converter version V0105 or later. For version V0104 or
earlier, setting the password implies that the converter will operate under Protection Level 1. (Please
refer to page 45 for details on how to view the converter version number.)
żOperation timeout function
If no operation is made for one minute or more while the converter is in the setting mode, the
mode automatically returns to the measurement mode unless the parameters are displayed on
the screen.
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for 1 minute, the mode
automatically returns to the
measurement mode.
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Parameter check screen
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(Parameters are being changed.)
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to the measurement mode.
7.2.2 Setting and Calibration
In the setting mode, you can select items, or check or change the setting values as described below.
When you push
or
to scroll up or down the numeric value or alphabet, or when push
to move the digit, you can execute continuous operation by holding down the relevant
switch longer. (Holding down the switch longer automatically executes the operation continuously.)
㸫 46 㸫
6 F 8 A 0 9 2 8 Ɣ0RYLQJWR the menu screen
(Example for transferring from the mode change screen to the setting screen of DSPL2 )
Switch operation
Display example
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Pushing 6(7 in the measurement mode
takes you to the menu configuration
selection screen.
For configuration, select BASIC or
DETAILED menu.
Pushing
from the menu configuration
selection screen takes you to the menu
screen.
The cursor is positioned at the function
display ([A: DETECTOR] in this example).
* This screen is an example when the
DETAILED menu is selected.
Pushing
or
while the cursor
is positioned at the function display changes
to another function display and its
corresponding menu item list.
When you push
, the cursor at the
function display disappears and the cursor
goes to the display field of the setting items
list.
Every time you push
, the cursor
rolls down by one item at a time. Pushing
further when the cursor is
positioned at the bottom causes the cursor to
return to the top item.
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When you push
, the setting screen
for the item the cursor positioned appears
and enables you to set / check the parameter.
(6&
㸫 47 㸫
6 F 8 A 0 9 2 8 Ɣ&KHFNLQJRUFKDQJLQJWKHVHWWLQJYDOXH (Example for changing the value of R1)
Switch operation
Display example
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R1.
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Push
to select the item you want
to check or change.
The screen changes and the currently set
item appears for you to check.
Pushing (6& returns you to the menu
screen.
(6&
to move the arrow mark to
(6&
Description
Menu screen for function C
5
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When you push
, the cursor appears
on the setting value and the screen is ready
to change the setting value.
5
PK
Ready to change the setting value
Pushing
increments the number in
the place where the cursor is positioned.
(Holding down the switch longer causes the
operation to continue.)
* Pushing
when the cursor is positioned
below the digit of unit will change the unit to the
next unit. In addition, if a natural number is used, a
decimal point as well as the numeric value appears.
5
PK
Ready to change the setting value
Pushing
next digit.
moves the cursor to the
5
PK
Ready to change the setting value
Change the setting value using
.
In this example, 5.000 m/s is set.
5
PK
6(72."
Pushing
sets the data temporarily.
The cursor disappears and a message
appears to confirm whether it is OK or not.
(6&
2.
and
12
㸫 48 㸫
6 F 8 A 0 9 2 8 Switch operation
12
Display example
5
PK
5
PK
(6&
(6&
&
5$1*(
57<3(
55
55
5+<6
(;,7
2.
Description
If you want to cancel the operation, for
example, because the temporarily set data is
incorrect, pushing
12
returns the
temporarily set data to the previous value,
enabling you to change the setting value
again.
Pushing (6& cancels the setting operation
and exits the setting screen.
Pushing
when data is temporarily set
causes the data to be fixed and executed.
After the data is set, the cursor disappears,
enabling you to check the set value.
Pushing (6& returns you to the menu
screen.
(6&
&
5$1*(
57<3(
55
55
5+<6
(;,7
(;,72."
Push
and move the cursor to “EXIT”
and then push
, a message appears to
confirm whether it is OK to exit or not.
When you push 12 here, the screen
does not move to the measurement mode
and returns to the menu screen.
When you push
here, the screen
does
move
to
the
menu
configuration
2.
12
selection screen.
If you push 2. , the setting mode ends
and returns to the measurement mode.
PK
P
㸫 49 㸫
6 F 8 A 0 9 2 8 7.3 Configuration Items Selection Table
How to check or change each constant of the converter is shown in the table below.
Details of each item are described in the setting items (A to R) of Chapter 8, "Parameter Settings."
ż%DVLFFRQILJXUDWLRQZKHQPHQXFRQILJXUDWLRQLVBASIC)
When you select "BASIC" in the menu configuration screen, the menu to check or change each
constant is executed as follows.
Fucntion
B
DISPLAY
1
2
Display1
Display2
C
RANGE
Range
type
Range1
D
FILTER
Damping
value
E
LOW CUT
Low cut
Value
Still water
zero point
adjustment
Returns to
meas.
mode
Returns to
meas.
mode
Returns to
meas.
mode
H
DO
Digital
output 1
Digital
output 2
I
DI
Digital
input
F
ZERO
J
CNT/PLS
Count rate
Returns to
meas.
mode
Pulse
width
setting
mode
3
Returns
to meas.
mode
Returns
to meas.
mode
4
Returns
to meas.
mode
Pulse
width
Returns to
meas.
mode
When the mode is changed from the measurement mode to the setting mode, Group B is displayed first
in the case of Basic configuration. After that, the screen changes as follows:
Group B (Start screen) я Group C я Group D я Group E
я Group F я Group H я Group I я Group J
㸫 50 㸫
6 F 8 A 0 9 2 8 ż'etailed configuration
When you select "DETAILED" in the menu configuration selection screen, the check/change menu for
each constant setting is expanded as shown in the table below.
Function
A
DETECTOR
B
DUSPLAY
C
RANGE
D
FILTER
E
LOW CUT
F
ZERO
G
4-20mA
H
DO
I
DI
1
Exciting
Current
Meter size
3
Exciting
frequency
Custom
value
4
Flow
direction
Custom
unit
5
Returns to
meas.mode
Returns to
meas.mode
Range4
Display1
Display2
Range type
Range1
Range2
Range3
Limit rate
Limit time
Returns to
meas.mode
Display low
cut setting
Returns to
meas.mode
Manual zero
setting
Returns to
meas.mode
Low limit
value
K FACTOR
*3
Returns to
meas.mode
Digital
output2
DI control
signal level
Pulse width
setting
mode
Preset
output
function
High alarm
value
HH alarm
value
Self check
ON/OFF
Fix current
value
LCD
adjustment
DO1 alarm
status
Returns to
meas.mode
DO2 alarm
status
Damping
value
Low cut
value
Still water
zero point
adjustment
Current
output setting
upon alarm
occurrence
Digital
output1
Digital input
J
CNT/PLS
Count rate
K
PRESET C
Preset
count value
L
H/L ALM1
M
H/L ALM2
N
SELF CHK
O
FIX OUT
P
OTHERS
Q
COMM
High alarm
ON/OFF
HH alarm
ON/OFF
Empty
alarm
R
CAL
2
Fix out set
Password
PROFIBUS
MODBUS
0%
Flow value
calculation
50%
Flow value
calculation
*1
Pulse width
6
Range
hysteresis
7
Returns to
meas.mode
Returns to
meas.mode
Returns to
meas.mode
Returns to
meas.mode
Low alarm
ON/OFF
LL alarm
ON/OFF
Converter
alarm
Fix pulse
value
Switch
position
Returns to
meas.mode
100%
Flow value
calculation
Low alarm
value
LL alarm
value
Returns to
meas.mode
Returns to
meas.mode
Detector
type *2
Exciting
current
display
*1
Returns to
meas.mode
Returns to
meas.mode
Returns to
meas.mode
Returns to
meas.mode
Note 1: If you enter a wrong password, you are allowed to check the settings and calibration
values for the items with the thick frame line in the table. However you are not allowed to
change the setting and perform calibration for these items. (for converter version V0104 or
earlier, or when Protection Level 1 is set for converter version V0105 or later).Please refer
to next page for detail.
Note 2: For items with *1(R2 and R4), you are only allowed to check the calibration value.
Note 3: The item with *2(P4) can be used for converter version V0103 or later.
Note 4: For the item with *3(G3), when the Detector Type is K-FAC CAL, this item is displayed.
㸫 51 㸫
6 F 8 A 0 9 2 8 7.4 Password input
The converter provides the password function to prohibit some functions that affect the flow measurement
from being set or adjusted. For the protected functions, see the menu configuration table on the previous
page.
* Password is a 3-digit number. If '000' is set for the password, the password input screen does not appear.
If a password is set (other than '000' is set), you have to enter your correct password.
x Limitation of totalizer operation
Start and stop operations only are permitted. (Clear operation is not permitted.)
x Protection Levels
Levels of protection are valid for converter version V0105 or later.
For Protection Level 1, the converter operation is similar to when the password is set in converter
version V0104 or earlier.
For Protection Level 2, entering the settings mode is prohibited and consequently, viewing and setting of
all parameters, as well as zero adjustment and totalizer operations are not allowed. The communication
function is switched to Write Protect mode. (Reading of measurement values and parameters is allowed.
However, execution of all write commands returns an error.)
㸫 52 㸫
6 F 8 A 0 9 2 8 8. Parameter Settings
8.1 Parameter Setting Items
To check or change each constant of the converter, first select the desired setting item described in 7.3.2
“Setting and Calibration.”
Proceed as follows for settings in the setting mode.
No.
8.2.2
8.2.3
8.2.4
8.2.5
8.2.6
8.2.7
8.2.8
Function item
Exciting current
Meter size
Exciting frequency
Flow direction
Display1,2
Custom value
Custom unit
8.2.9
Range (Span)
8.2.10
8.2.11
8.2.12
8.2.13
Damping value
Limit rate, Limit time
Low cut value
8.2.15
8.2.16
8.2.17
Display low cut
Still water zero point
Adjustment
Manual zero
Output at alarm occurrence
Output low limit
8.2.18
Digital output
8.2.19
Digital input
Count rate,
Pulse width setting mode,
Pulse width
Preset count value
Preset output mode
8.2.14
8.2.20
8.2.21
8.2.22
8.2.23
High / Low alarm limit,
HH (High high)
LL (Low low) alarm limit
8.2.24
8.2.25
8.2.26
Empty alarm
Self check
Converter alarm
8.2.27
Fix output
8.2.28
8.2.29
8.2.30
8.2.31
8.2.32
Password
LCD adjustment
Swtich position
Communication
Detector type
Display example
EXC CUR
SIZE
EXC FREQ
FLOW DIR
DSPL1 / DSPL2
CS VAL
CS UNIT
R TYPE,
R1(㹼R4),
R HYS
DAMPING
LIM RATE / LIM TIME
CUT VAL
DSPL SET
ZERO ADJ
MANUAL
ALM 4-20
LOW LIM
DO1 FUNC, DO2 FUNC,
DO1 STAT, DO2 STAT
DI FUNC, DET LVL
CNT RATE, PLS MODE,
PLS WID
PRST VAL
OUT MODE
H SET / H VAL
L SET / L VAL
HH SET / HH VAL
LL SET / LL VAL
EMPTY
SELF CHK
CONV ALM
FIX SET, CUR VAL,
PLS VAL
PASSWORD
LCD ADJ
SW POSN
PROFIBUS / MODBUS
DET TYPE
㸫 53 㸫
Function
A
B
C
D
E
F
G
H
I
J
K
L, M
N
O
P
Q
R
6 F 8 A 0 9 2 8 8.2 Check/Change of Parameters
8.2.1 Menu Configuration Selection Screen
Display example
0(186(/
%$6,&
'(7$,/('
35(9,(:
=(52$'-
3/66(7
(6&
You can select the kind of menu configuration.
For menu items of configuration, see 7.4 "Setting and Calibration Items List."
BASIC
DETAILED
PREVIEW
ZERO ADJ
PLS SET
Only the basic parameters are displayed.
Nothing is displayed in the field of other parameters.
All parameters are displayed.
Only reading of all parameters is possible.
When switch is pushed, the screen switches.
When (6& switch is pushed, the mode returns to the
measurement mode.
Moves directly to the still water zero point adjustment
screen.
See 8.2.14 “Still Water Zero Point Adjustment.”
Moves to the pulse output setting mode.
See “Pulse output setting mode” on Page 44.
㸫 54 㸫
6 F 8 A 0 9 2 8 Function A: Detector Settings
8.2.2 Exciting Current Value (Function A-1)
The exciting current value can be checked/changed by the following procedures.
Be sure to match the exciting current value with the value specified for the
combined detector.
Specifying any other value may cause an error.
Shown below is an example of changing the exciting current value from 0.1900A to 0.2150A.
Switch operation
Display example
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Description
Select "EX CUR" from the setting item
selection menu.
(6&
67(3
(;&&85
$
(6&
67(3
67(3
67(3
67(3
(;&&85
$
(;&&85
$
(;&&85
$
(;&&85
$
㸫 55 㸫
The currently set excitation current value
(0.1900A in this example) appears.
Then push
.
* Pushing (6& returns you to the setting
menu.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The digit indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting
value. Push
to move the cursor to
the digit you want to change. (You can hold
down the switch longer for continuous
operation.)
Then push
.
You can continue to change the setting
value. Pushing
increments the
number of the digit the cursor is positioned.
(You can hold down the switch longer for
continuous operation.)
Repeat this operation to change the value to
0.2150A.
When the desired value is obtained, push
to set the value temporarily.
6 F 8 A 0 9 2 8 Switch operation
67(3
Display example
(;&&85
$
6(72."
(6&
67(3 (1'
2.
2.
Description
Pushing
shows a message to confirm
the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
12
(;&&85
$
When you push 2. to “SET OK?”
message, the set value is fixed.
Then pushing (6& brings you back to the
setting menu. If you push
, you can
change the current value from 0.2150A
(6&
again.
Note: The setting range of excitation current value is from 0.0000A to 0.2500A.
If you try to set an exciting current value larger than 0.2500A, an error message appears
and the setting value returns to the previous value.
8.2.3 Meter Size (Function A-2)
Proceed as follows to check or change the meter size of the detectors other than LF664 detector. Refer to
8.2.32 Detector type to adjust the meter size of LF664 detector.
Switch operation
Display example
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
6,=(
67(3
(6&
PP
(6&
6,=(
67(3
67(3
Description
Select "SIZE" from the setting item
selection menu.
PP
6,=(
PP
㸫 56 㸫
The currently set meter size (50mm in this
example) appears.
Then push
.
Pushing (6& returns you to the setting
menu.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting
value.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
6 F 8 A 0 9 2 8 Switch operation
67(3
67(3 (1'
Display example
Description
6,=(
Repeat this operation until 150mm is
obtained.
PP
When the desired value is obtained, push
to set the value temporarily.
6,=(
PP
6(72."
(6&
2.
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Note 1: The meter size display loops as shown below:
ձ
2.5mm 4mm 6mm 15mm ղ 0.1inch
0.16inch
0.25inch
0.5inch
900mm
36inch
ղ
ձ
Note 2: When the meter size is changed, range unit and count rate will be forcefully changed as
described below. If necessary, change these parameters again.
Range unit
Count rate
m/s
If the count rate goes out of the setting range
when the meter size is changed, the count rate
will be forcefully set to zero.
Note 3: The exciting frequency setting may become inappropriate for the set value when the
meter size of the detector is changed. If the exciting frequency is the value shown
below when the meter size is changed, the exciting frequency will be forcefully
changed.
Setting meter size
(mm)
(inch)
2.5 ~ 200
0.1 ~ 8
250 ~ 450
10 ~ 18
500 ~ 900
20 ~ 36
Set exciting frequency
Forcefully set exciting frequency
㸫
24Hz
12Hz, 24Hz
Not forcefully set
12Hz
6Hz
㸫 57 㸫
6 F 8 A 0 9 2 8 8.2.4 Exciting Frequency (Function A-3)
You can select an exciting frequency of 6Hz, 12Hz or 24Hz.
Since each exciting frequency value has its own characteristics, you should select an appropriate exciting
frequency (24Hz is set at shipment. Depending on the characteristics of the detector, a large frequency
may result in excitation failure. When a large frequency value is set and it changes the indicator value,
decrease the frequency to a value that will not change the indicator value.)
Exciting frequency
6Hz
12Hz
24Hz
Zero-point stability
Good
Response Good
Withstand fluid noise
Good
However, the range of usable exciting frequency depending on the detector to be combined is shown below.
Detector
combined
Corresponding exciting frequency
Meter size
6Hz
12Hz
24Hz
LF414,LF434,LF654 0.6’’ to 8’’
GF630,GF632
ۑ
ۑ
۔
LF434,LF654
10’’ to 18’’
ۑ
۔
LF494
1’’ to 4’’
ۑ
ۑ
۔
GF630, GF632
10’’ to 18’’
ۑ
۔
GF630, GF632
20’’ to 36’
۔
LF664
20’’ to 80’
۔
䖂Factory setting
䕿Combination allowed
Combination not allowed
Shown below is an example of changing the exciting frequency from 24Hz to 12Hz.
Switch operation
Display example
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Description
Select "EXC FREQ" from the setting item
selection menu.
(6&
67(3
(;&)5(4
+]
(6&
67(3
(;&)5(4
+]
The currently set excitation frequency
(24Hz in this example) appears.
Then push
* Pushing (6& returns you to the setting
menu.
The switches at the bottom change.
(
are shown)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
㸫 58 㸫
.
.
6 F 8 A 0 9 2 8 Switch operation
67(3
67(3
67(3 (1'
Display example
Description
(;&)5(4
+]
You can continue to change the setting item.
Pushing
changes the
selection items.
: Selected item is scrolled up.
: Selected item is scrolled down.
(;&)5(4
+]
Repeat this operation to select 12Hz.
When the desired item is selected, push
to set the item temporarily.
(;&)5(4
+]
6(72."
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
(6&
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
(Note 1) The exciting frequency is displayed cyclically, as shown below.
6Hz 12Hz 24Hz
8.2.5 Flow Direction Setting (Function A-4)
In the converter, you can set the flow direction of fluid arbitrarily.
Ɣ
Flow direction setting
Selection item
NORMAL
SWITCH
Switch operation
Contents
When the fluid flows in the direction of the arrow
indicating the flow direction that is attached to the
detector, the indicator value and electric current output
value increase.
When the fluid flows in the reverse direction of the
arrow indicating the flow direction that is attached to
the detector, the indicator value and electric current
output value increases.
Display example
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
(6&
㸫 59 㸫
Description
Select "FLOW DIR" from the setting item
selection menu.
6 F 8 A 0 9 2 8 Switch operation
67(3
Display example
)/2:',5
1250$/
Then push
67(3
67(3
67(3 (1'
.
* Pushing (6& returns you to the setting
menu.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
(6&
67(3
Description
The currently set flow direction (NORMAL
in this example) appears.
)/2:',5
1250$/
Then push
.
You can continue to change the setting item.
Pushing
changes the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
)/2:',5
6:,7&+
)/2:',5
6:,7&+
Perform this operation to change the setting
to SWITCH.
)/2:',5
6:,7&+
6(72."
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
(6&
2.
When the desired item is obtained, push
to set the item temporarily.
Pushing (6& cancel the setting operation
12
and exits the setting screen.
Function B: Display Settings
8.2.6 Display Setting (Function B-1, B-2)
You can select one of the engineering units listed below as a flow measurement unit.
Flow velocity unit
Flow rate unit
(Note3)
Volume unit
Other units
Totalized flow direction
Totalized difference flow
Totalized cyclic display
m/s, ft/s
3
3
3
3
m /s, m /min, m /h, m /d , L/s, L/min, L/h, L/d,
mL/s, mL/min, mL/h, mL/d, gal/s, gal/min, gal/h, gal/d,
bbl/s, bbl/min, bbl/h, bbl/d, pt/s, pt/min, pt/h, pt/d,
qt/s, qt/min, qt/h, qt/d
3
3
3
3
ft /s, ft /min, ft /h, ft /d, Mgl/s, Mgl/min, Mgl/h, Mgl/d
3
3
m , L , mL , gal , bbl , pt , qt , ft , Mgl
% , COUNT , RANGE , GRAPH , CUSTOM
Forward direction (when F or B is selected)
Reverse direction (when R or B is selected)
Difference between totalized forward flow and totalized
reverse flow. (when totalized flow direction D is selected)
Totalizer of forward, reverse and difference are
displayed at cycle about 5 seconds. (when totalized flow
direction C is selected.)
㸫 60 㸫
6 F 8 A 0 9 2 8 Note 1: If COUNT, RANGE, GRAPH or CUSTOM is selected, the display is shown below:
COUNT: displays the totalized flow counts (up to 8 digits).
RANGE: displays the range number being used for measurement (1 to 4).
GPARH: displays the measured value (% value) in bar graph.
In addition, the range number being used for measurement is also displayed.
CUSTOM: displays the result obtained by multiplying m3/min by the custom coefficient.
The details see 10.10 “Custom unit function”.
Note 2: GRAPH display can be selected only for Display 2 screen.
Note 3: Mgl=1,000,000 gal.
Note 4: Please do the unit setting of the HART communication by the HART communication.
For display settings, Display 1 (DSPL1) and Display 2 (DSPL2) can be set independently.
The following is an example to change the Display 1 setting from % to m3/h.
Switch operation
Description
Display example
%
',63/$<
'63/
'63/
&69$/
&681,7
(;,7
Select "DSPL1" from the setting item
selection menu.
'63/
The currently set display setting (% in this
example) appears.
Then push
.
* Pushing (6& returns you to the setting
menu.
(6&
67(3
(6&
67(3
'63/
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
'63/
PK
Push
to move the cursor from the
second unit to the third unit and change the
display unit by pushing
.
Repeat this operation to change the display
unit to mL/s.
When the desired display unit is selected,
push
to set the display unit
temporarily.
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo
the setting, push 12 .
Pushing (6&
cancels the setting
operation and exits the setting screen.
67(3 (1'
'63/
PK
6(72."
(6& 2.
12
Note 1: The first unit (volumetric units etc.) changes as shown below:
%
m3
L
3
GRAPH Mgl ft
mL
bbl
gal
CUSTOM qt
pt
㸫 61 㸫
m/s
RANGE
ft/s
COUNT
6 F 8 A 0 9 2 8 Note 2: The second unit (time unit) changes as shown below:
/s
/min
/h
/d
For Display 2 unit setting, select DSPL2 from the setting menu.
Ɣ+RZWRVHOHFWWKHGLVSOD\GLJLWVHWWLQJ
When you select flow velocity or flow rate (custom unit is included), the screen automatically
moves to the display digit setting screen.
Using the display digit setting screen, you can change the decimal places used for the
measured value in the measurement mode.
Switch operation
Either one of the flow velocity or flow rate
(custom unit is included) is selected, the
screen automatically moves to the display
digit setting screen.
This screen shows the set measured value
and unit.
67(3
67(3
Description
Display example
',*,7
PK
',*,7
PK
Pushing or changes the
setting of display digit and the measured
value indication changes accordingly.
',*,7
PK
6(72."
(6&
2.
When the desired item is selected, push
to set the item temporarily.
Pushing shows a message to confirm
whether the setting is OK or not.
If OK, push 2.
. If you need to redo the
setting, push 12
.
Pushing (6&
cancels the setting operation
and exits the setting screen.
12
Note: If the setting is cancelled without completing the display digit setting, the previously
used display digit setting will be used.
For display digit setting screen, the measured value is displayed in the screen based on the display
setting in the previous screen (display setting screen) and thus select the display digit setting while
observing the displayed measured value.
You can change the display digit with 1/10, 1/100, 1/1000 three phases for the setting range's maximum
effective digits. When setting range is more than 1000, a lower digit is not displayed from the decimal
point.
㸫 62 㸫
6 F 8 A 0 9 2 8 For example, if the setting range is 1.5m3/min and display digit setting is 1/100, the measured value
will be displayed to the first decimal place.
6HWWLQJUDQJH㸻 P㸭PLQ
One hundredth of
maximum effective digits
Maximum effective digits
Likewise, when the setting range 1m/s and display digit setting is 1/100, the measured value will be
displayed to the second decimal place.
The numbers less than the displayed digits will be rounded.
Note: The maximum display digits for flow velocity, flow rate and custom value are 7 digits.
If the measured value exceeds 7 digits, the displayed value remains fixed at the maximum display
value.
Ɣ&KDQJLQJWKHWRWDOL]HGIORZYROXPHGLUHFWLRQ
You can change the totalized flow volume direction as described below.
The following is an example to change the Display 1 setting from Fixed forward totalized flow (F)
to Bidirectional flow (B).
Switch operation
(6&
67(3
Description
Display example
'63/
P)
Select "DSPL1" from the setting item
selection menu.
The currently set display setting (m3 F in
this example) appears.
Then push
.
'63/
P)
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
'63/
P%
67(3 (1'
'63/
P%
6(72."
(6& 2. 12
㸫 63 㸫
Push
to move the cursor to the
third unit (totalized flow direction) and then
push
to change the direction.
Then push
temporarily.
to set the display unit
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
Pushing (6& cancel the setting operation
and exits the setting screen.
6 F 8 A 0 9 2 8 Note: The setting item for the third unit (flow volume direction code) changes
cyclically as shown below.
B(bi-directional)
F(forward direction fixed)
R(reverse direction fixed)
C(cyclic)
D(difference flow rate)
When C(cyclic) is selected, totalizer of forward, reverse and difference are displayed at cycle
about 5 seconds.
For Display 2 setting, select DSPL2 from the setting menu.
8.2.7 Custom Coefficient Setting (Function B-2)
You can set the custom coefficient used when CUSTOM is selected for display setting or span setting.
Custom coefficient can be set except 0.
3
Displayed value when CUSTOM is set 㸻 Measured value in m /min unit × Custom coefficient
3
Span value when CUSTOM is set
㸻 Span value in m /min unit × Custom coefficient
Note: Custom coefficient is applied when CUSTOM is selected in the display setting or span setting.
Other values such as instantaneous flow rate (display unit, such as m/s and m3/min), displayed
values such as totalized flow and pulse out will not be applied. The details see 10.10 “Custom
unit function”.
The following is an example to change the custom coefficient from 1.00 to 2.25.
Switch operation
Description
Display example
%
',63/$<
'63/
'63/
&69$/
&681,7
(;,7
Select "CS VAL" from the setting item
selection menu.
&69$/
The currently set custom coefficient
(1.00000 in this example) appears.
(6&
67(3
(6&
67(3
Then push
.
* Pushing (6& returns you to the setting
menu.
&69$/
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
&69$/
㸫 64 㸫
Push
to move the cursor to the
desired digit and push
to change the
number of the digit.
Repeat this operation to change the value to
2.25.
When the value is changed to the desired
value, push
to set the custom
coefficient temporarily.
6 F 8 A 0 9 2 8 Switch operation
67(3 (1'
Description
Display example
&69$/
6(72."
(6& 2. 12
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: The custom coefficient setting precision is 5 digits. Therefore, the input value changes
as follows depending on the setting value:
(Example) Input value, "85713038ĺ$IWHUWKHVHWWLQJLVFRQILUPHG85713040"
8.2.8 Custom Unit Setting (Function B-3)
You can set the custom unit used when CUSTOM is selected for display setting.
For custom unit setting, you can set any combination of characters within 7 characters.
The following is an example to change the custom unit from AAA/BBB to XXX/ZZZ.
Switch operation
Description
Display example
%
',63/$<
'63/
'63/
&69$/
&681,7
(;,7
Select "CS UNIT" from the setting item
selection menu.
&6
681,7
$$$%%%
The currently set custom unit (AAA/BBB in
this example) appears.
(6&
67(3
(6&
67(3
Then push
.
* Pushing (6& returns you to the setting
menu.
&681,7
$$$%%%
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
&681,7
;$$%%%
㸫 65 㸫
Push
or
to change the
character.
When the desired character is obtained,
push
. The cursor moves to the next
character.
6 F 8 A 0 9 2 8 Switch operation
67(3 (1'
Description
Display example
&681,7
;;;===
6(72."
(6& 2. 12
Pushing
when the cursor is positioned
on the 7th character shows a message to
confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note : The selectable characters are displayed cyclically as shown below:
㸟 ” 㸡 㸢 㸣 㸤 ’ 㸦 㸧 㸨 㸩 㸪 㸫 㸬 㸭
Symbol 1
Ў
Numeric
characters
Ў
㸸 㸹 㸺 㸻 㸼 㸽 ࣭
Symbol 1
Ў
Alphabetical
characters
(uppercase)
㸿㹼㹘
Ў
Alphabetical
characters
(lowercase)
㸮㹼㸷
㹟㹼㹸
Ў
Special
character
“ ”㸦Space㸧
Function C: Range Settings
8.2.9 Span (Range) (Function C)
You can set the following constants in this setting item:
(1) Range type
(2) Unit of span (can be changed in Range 1)
(3) Span
(4) Hysteresis
Ɣ5DQJHW\SH
Multiple ranges can be used by selecting the range type. You can select a single range,
multiple ranges, or forward/reverse multiple ranges.
Select one from five types shown below:
Selection items (display)
SINGLE
4F-0R
2F-2R
EXT 2F-0R
EXT 2F-2R
Description
Single range
Unidirectional flow,
automatic selection of multiple ranges
Bidirectional flows,
automatic selection of multiple ranges
Unidirectional flow,
multiple ranges selected by external signal
Bidirectional flows,
multiple ranges selected by external signal
㸫 66 㸫
6 F 8 A 0 9 2 8 Ɣ6SDQ
You can set the span for actual flow rate or flow velocity.
(1) Setting range
The span can be set within 0.1 m/s to 10 m/s in terms of flow velocity.
If you try to set the span outside of this range, either high limit or low limit error message
appears:
HIGH OVER SPEC (if the set value exceeds 10 m/s)
LOW OVER SPEC (if the set value is less than 0.1 m/s)
Try again to set the span within the range.
(2) Limitation of multiple ranges
When multiple ranges are used, the following must be observed:
In the case of unidirectional flow,
Range 1 > Range 2 > Range 3 > Range 4
In the case of bidirectional flows,
Range 1 > Range 2,
Range 3 > Range 4
If you try to set the ranges not conforming to the above, the following message
appears:
MULTI RANGE ERROR
Try again to set the ranges as specified above.
(3) Influence on count rate (pulse rate)
If you have changed the range when count rate (pulse rate) is set, the pulse output for 100%
output may exceed the maximum allowable range.
If this happens, the following message appears after all ranges are set and the screen goes to
the count rate (pulse rate) setting sequence.
HIGH OVER CNT RATE or LOW OVER CNT RATE
In this case, set the count rate (pulse rate) again in accordance with 8.2.20 “Count Rate,
Pulse Width Setting Mode and Pulse Width.”
Ɣ8QLWRIVSDQ
The span setting is performed for Range 1.
The same unit as that of Range 1 applies automatically to Ranges 2 to 4 and thus its setting is
not needed.
You can select the setting unit from the units below:
Flow velocity unit
m/s, ft/s
m3/s, m3/min, m3/h, m3/d, L/s, L/min, L/h, L/d
mL/s, mL/min, mL/h, mL/d, gal/s, gal/min, gal/h, gal/d
Flow rate unit
bbl/s, bbl/min, bbl/h, bbl/d, pt/s, pt/min, pt/h, pt/d
(Note)
qt/s, qt/min, qt/h, qt/d
ft3/s, ft3/min, ft3/h, ft3/d, Mgl/s, Mgl/min, Mgl/h, Mgl/d
Other
Custom unit
If you have changed the unit, the new span value will be displayed automatically based on the
newly set unit. When custom unit is selected, the new span value will be displayed
automatically based on the custom coefficient and custom unit of 8.2.7 “Custom Coefficient
Setting” and 8.2.8 “Custom Unit Setting”. The details see 10.10 “Custom unit function”.
Note : Mgl = 1,000,000 gal
㸫 67 㸫
6 F 8 A 0 9 2 8 Ɣ5DQJHK\VWHUHVLV
The hysteresis is the dead band used when multiple ranges are switched.
You can set the hysteresis within the range of 0 to 25% in increments of 0.1%.
The hysteresis is set only when automatic selection of multiple ranges is used.
Ɣ6HWWLQJVHTXHQFHRIVSDQUDQJH
The following is the setting sequence for span (range).
Item selection for span (range) setting
57<3(
:Range type setting
5
:Range 1 span and unit setting
5
: Range 2 span
5
: Range 3 span
54
: Range 4 span
5+<6
: Hysteresis setting
Note: If any type of multiple ranges is selected as range type, the setting screens of Range 1 to
Hysteresis forcefully appears one after another. If the setting is cancelled halfway, all of
the settings including the ones already set will be cancelled.
You can check or change each constant as described below.
Ɣ&KHFNLQJHDFKFRQVWDQW
Switch operation
Description
Display example
&5$1*(
57<3(
55
55
5+<6
(;,7
Select "R1" from the setting item selection
menu.
5
The currently set span value of Range 1
appears.
(6&
PPLQ
(6&
㸫 68 㸫
6 F 8 A 0 9 2 8 Switch operation
(6&
Description
Display example
&5$1*(
57<3(
55
55
5+<6
(;,7
Pushing
menu.
(6&
returns you to the setting
(6&
Ɣ&KDQJLQJWKHUDQJHW\SH
The range type should be set before changing the span.
The following is an example to change the range type from Single range (SINGLE) to
Bidirectional automatic selection of multiple ranges (2F-2R).
Switch operation
Description
Display example
&5$1*(
57<3(
55
55
5+<6
(;,7
Select "R TYPE" from the setting item
selection menu.
57<3(
6,1*/(
The currently set range type (SINGLE in
this example) appears.
(6&
67(3
(6&
67(3
67(3
67(3
Then push
* Pushing
menu.
.
(6&
returns you to the setting
57<3(
)5
The switches at the bottom change.
(
are shown.)
At the same, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
57<3(
)5
57<3(
)5
Perform this operation to change the setting
to 2F-2R.
When the item is changed to the desired
item, push
to set the item
temporarily.
㸫 69 㸫
6 F 8 A 0 9 2 8 Switch operation
67(3 (1'
Description
Display example
57<3(
)5
6(72."
(6&
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Ɣ&KDQJLQJWKHVSDQ
You can set the span value for each range.
The following is an example to change the span of Range 1 from 2.0 m3/min to 30.0 L/s.
Switch operation
67(3
(6&
67(3
Description
Display example
5
PPLQ
5
PPLQ
Select "R1" from the setting item selection
menu.
The currently set span value of Range1
(2.00000 m/s in this example) appears.
Then push
.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
5
PPLQ
Push
to move the cursor to the digit
of the first unit.
67(3
5
/PLQ
Push
to change the first unit.
Push
to move the cursor to the digit
of the time unit.
67(3
5
/V
㸫 70 㸫
Push
to change the time unit.
Push
to move the cursor to the digit
of span value.
6 F 8 A 0 9 2 8 Switch operation
67(3
Description
Display example
5
/V
Push
digit.
Push
to change the number of the
to move the digit.
5
/V
6(72."
(6& 2. 12
67(3 (1'
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: Unites of the measuring unit changes as shown below:
First unit
m3
Mgl
Second unit
(Time unit)
L
ft3
mL
bbl
gal
CUSTOM
qt
pt
/s
/min
/h
m
ft
/d
࣭However, the following first and second unit combinations cannot be selected:
m/min, m/h, m/d, ft/min, ft/h, ft/d
࣭In the case of custom unit, time unit is not displayed.
࣭In the case of custom unit, character string set in 8.2.8 “Custom Unit Setting” is displayed.
Identification character “” showing the custom unit is displayed at the head of custom unit.
Ɣ&KDQJLQJWKHK\VWHUHVLV
The hysteresis used for multi-range switching is set to 3% (with respect to Range 1) when the
flowmeter is shipped from the factory, unless otherwise specified.
The following is an example to change the hysteresis from 3% to 5%.
Switch operation
67(3
(6&
67(3
Description
Display example
5+<6
Select "R HYS" from the setting item
selection menu.
The currently set hysteresis (3.0% in this
example) appears.
Then push
.
5+<6
㸫 71 㸫
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
6 F 8 A 0 9 2 8 Switch operation
67(3
Description
Display example
5+<6
Push
to move the cursor to the
desired digit and push
to change the
number of the digit.
67(3 (1'
5+<6
6(72."
(6& 2. 12
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: If you try to set a value exceeding 25.0%, HIGH OVER SPEC error appears and the
value returns to the previous value. Set a value once again.
Function D: Filter Settings
8.2.10 Damping Constant (Function D-1)
The damping constant is used to moderate output fluctuations. (The larger the damping constant, the more
the output is averaged. But the response to an input change will be slower.) The damping constant can be
set as follows:
The damping constant is set for 0.0 sec, 0.5 sec and 1 to 60 sec (in increments of 1 second)
Note: 0.0 sec setting will work as equal to 0.1 sec damping constant.
Set 1 sec or more for normal operation.
If you set a value exceeding 60s, it is forcibly changed to 60s before data is written.
Proceed as follows to check or change the damping constant.
Shown below is an example of changing the damping constant from 2.0s to 10s.
Switch operation
Description
Display example
'),/7(5
'$03,1*
/,05$7(
/,07,0(
(;,7
Select "DAMPING" from the setting item
selection menu.
'$03,1*
6
The currently set damping constant (2.0s in
this example) appears.
(6&
67(3
(6&
㸫 72 㸫
Then push
.
6 F 8 A 0 9 2 8 Switch operation
67(3
Description
Display example
'$03,1*
6
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
'$03,1*
6
Push
to move the cursor to the
desired digit and push
to change the
number of the digit.
67(3 (1'
'$03,1*
6
6(72."
(6& 2. 12
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
8.2.11 Rate-Of-Change Limit and Control Limit Time (Function D-2)
The rate-of-change limit is used to control sudden changes of the converter’s flow rate signal output
when excessive noise is contained in the flow rate signal.
The rate-of-change limit (set in percent value to the span of measuring range) and control limit time (set
in second) are used, and if the flow rate signal sampling value exceeds the rate-of-change limit value
based on the previous average value of the flow rate signal, the converter rejects the sampling value and
outputs the average value including the maximum value of the rate-of-change value.
In addition, if the limit-exceeding flow rate sampling value continues for the same flow direction for
more than the preset control limit time, the data will be considered as flow rate variation and that
sampling value will be used as normal output data.
You can set these two parameters within the ranges shown below:
x Rate-of-change limit
0 to 30% / 50ms (in increments of 0.1%)
x Control limit time:
0 to 20s (in increments of 1s)
Note㸸If “0” is set in either of these parameters, the rate-of-change limit function is disabled.
㸫 73 㸫
6 F 8 A 0 9 2 8 Ɣ&KDQJLQJWKHUDWH-of-change limit
The following is an example to change the rate-of-change limit value from 10.0% to 15.0%.
Switch operation
Description
Display example
'),/7(5
'$03,1*
/,05$7(
/,07,0(
(;,7
Select "LIM RATE" from the setting item
selection menu.
/,05$7(
The currently set value (10.0% in this
example) appears.
(6&
67(3
(6&
67(3
Then push
.
/,05$7(
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
/,05$7(
Push
to move the cursor to the
desired digit and push
to change the
number of the digit.
67(3 (1'
/,05$7(
6(72."
(6& 2. 12
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note : If you try to set a value exceeding 30.0%, HIGH OVER SPEC error appears and the
value returns to the previous value. Set a value again.
㸫 74 㸫
6 F 8 A 0 9 2 8 Function E: Low Cutoff Settings
8.2.12 Low Cutoff (Function E-1)
The low cutoff is the function to set the current output to zero forcefully if the flow rate is equal to or
less than the low cutoff value set near 0%. During this time, the totalizer pulse output will also be
stopped.
The low cutoff value can be set within the range 0 to 10% in increments of 0.1%. In addition, the
returning point (hysteresis) from the low cutoff condition is set to 25% of the low cutoff value.
You can check or change the low cutoff value as described below.
The following is an example to change the low cutoff value from 1.0% to 3.0%.
Switch operation
Description
Display example
(/2:&87
&879$/
'63/6(7
(;,7
Select "CUT VAL" from the setting item
selection menu.
&879$/
The currently set low cutoff value (01.0% in
this example) appears.
(6&
67(3
(6&
67(3
Then push
.
&879$/
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
&879$/
Push
to move the cursor to the
desired digit and push
to change
the number of the digit.
67(3 (1'
&879$/
6(72."
(6& 2. 12
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2.. If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: If you try to set a value exceeding 10.0%, HIGH OVER SPEC error appears and the
value returns to the previous value. Set a value again.
㸫 75 㸫
6 F 8 A 0 9 2 8 8.2.13 Display Low Cutoff (Function E-2)
When low cutoff is set in 8.2.12 “Low Cutoff,” this function determines whether to use the low cutoff
processing for displayed values.
You can select the display low cutoff setting from the items in the table below.
Ɣ'LVSOD\ORZFXWRIIVHWWLQJIXQFWLRQ
Selection items
Displayed values
LINEAR
Low cutoff processing is not used for displayed
values.
LOW CUT
Displayed values are processed with low cutoff.
For example, if the low cutoff is set to 10% and the indicated value of the input from the detector is
5%, the displayed value on the screen becomes as shown below. However, since the totalizer is
stopped due to the low cutoff process, the totalized flow volume display will be stopped as well.
Display low cutoff
Displayed value
LINEAR
5.0%
LOW CUT
0.0%
You can check or change the display low cutoff as described below.
The following is an example to change the setting from LINEAR to LOW CUT.
Switch operation
Description
Display example
(/2:&87
&879$/
'63/6(7
(;,7
Select "DSPL SET" from the setting item
selection menu.
'63/6(7
/,1($5
The currently set low cutoff
(LINEAR in this example) appears.
(6&
67(3
(6&
67(3
67(3
setting
Then push
.
Pushing (6& returns you to the setting
menu.
'63/
/6(7
/,1($5
'63/6(7
/2:&87
㸫 76 㸫
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
6 F 8 A 0 9 2 8 Switch operation
67(3 (1'
Description
Display example
'63/6(7
/2:&87
6(72."
(6&
2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Note: The measured value sent from the converter through communications is the value
processed with display low cutoff.
Function F: Zero Point Setting
8.2.14 Still Water Zero Adjustment (Function F-1)
Zero adjustment is performed with the fluid held still in the detector's measurement pipe.
Switch operation
Description
Display example
)=(52
=(52$'-
0$18$/
(;,7
Select "ZERO ADJ" from the
configuration item selection menu.
=(52$'-
The current flow rate measurement value
appears.
(6&
67(3
(6&
67(3
/RQJHU
2.
67(3 (1'
Note 3:
The title display changes to ADJ READY,
and the converter is ready for zero
adjustment.
* Pushing 12 returns you to the previous
screen.
12
12:=(52
$'-867,1*
Pushing 2. starts zero adjustment.
=(52$'-
Zero adjustment ends in several seconds and
the flow rate measured value appears.
(6&
Note 1:
Note 2:
longer.
* Pushing (6& returns you to the setting
menu.
$'-5($'<
2.
67(3
Then push and hold
Pushing (6& returns you to the setting
menu.
To start still water zero adjustment, push and hold
longer.
Still water zero adjustment is possible only when the flow rate value is within the range of
±1.25 m/s.
If you want to cancel the adjustment when ADJ READY is displayed, push 12 . This
returns you to the state showing the flow rate measurement value on the screen.
㸫 77 㸫
6 F 8 A 0 9 2 8 8.2.15 Manual Zero Adjustment (Function F-2)
This function is used to perform zero adjustment simply by comparing the output value of the converter
with the process value of other instruments without stopping the process of measurement.
If zero adjustment described in 8.2.14, “Still Water Zero Adjustment” can be performed, this
manual setting is not needed.
Ɣ&KDQJLQJWKHPDQXDO]HURDGMXVWPHQWYDOXH
Calculate the adjustment value with the following equation:
Adjustment value (%) = {(Actual flow rate) (Converter’s measured value)}
* Calculate the manual zero value using the % value for the setting range (Range 1) of the converter.
See the following example.
(Example)
Flow rate
% value to setting span
Actual flow rate obtained
50.0 %
10.0 m3㸭min
from other instrument
3
52.5 %
Converter’s measured value
10.5 m 㸭min
Manual zero adjustment value
-2.5 %
(If manual zero adjustment value is set to +2.5 %, the converter output is shifted by 2.5%
and the output of 50.0 % will be obtained.)
The following is an example to change the manual zero adjustment value from +1.0% to 2.5%.
Switch operation
Description
Display example
)=(52
=(52$'-
0$18$/
(;,7
Select "MANUAL" from the setting item
selection menu.
0$18$/
The currently set manual zero value (+1.0%
in this example) appears.
(6&
67(3
(6&&
67(3
Then push
.
0$18$/
㸫 78 㸫
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
6 F 8 A 0 9 2 8 Switch operation
67(3
Description
Display example
0$18$/
Push
to move the cursor to the
desired digit and push
to change the
symbol or number of the digit.
67(3 (1'
0$18$/
6(72."
(6& 2. 12
Pushing
shows a message to confirm
whether the setting is OK or not.
If OK, push 2. . If you need to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: The manual zero adjustment value can be set within the range equivalent to ±1 m/s
(±10 % of the maximum range 10m/s). If you try to set a value out of this range, an
error message HIGH OVER SPEC or LOW OVER SPEC appears. If this happen,
redo the setting.
In addition, if you perform still water zero adjustment with water held still, the manual
zero adjustment value will be cleared to 0.0%.
Function G: Current Output Setting
8.2.16 420mA Alarm Output Setting (Function G-1)
The 420mA alarm output setting is the function to fix the current output to a selected fixed value if
an alarm occurs when self-diagnosis function is performed.
The 420mA alarm output value can be selected from the following table.
Ɣ7KH20mA alarm output setting function
Selection items
The 420mA alarm output value
UNDER 3mA
3.0mA or less
4mA
4.0mA
HOLD
Fixed to the present value
OVER 24mA
24.0mA or more
You can check or change the 420mA alarm output value as described below.
The following is an example to change the setting from UNDER 3.0mA to 4.0mA.
Switch operation
Display example
*
P$
$/0
/2:/,0
(;,7
(6&
㸫 79 㸫
Description
Select "ALM 4-20" from the setting item
selection menu.
6 F 8 A 0 9 2 8 Switch operation
67(3
(6&
The currently set value (UNDER 3.0mA in
this example) appears.
Then push
* Pushing
menu.
$/0
81'(5P$
67(3
67(3 (1'
$/0
P$
6(72."
(6&
2.
.
(6&
returns you to the setting
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
$/0
P$
67(3
Description
Display example
$/0
81'(5P$
Pushing (6& cancels the setting operation
12
and exits the setting screen.
8.2.17 Output Low Limit Setting (Function G-2)
The low limit of the current output for converter can be set.
The output low limit can be selected from the items listed in the table below.
Ɣ2XWSXWORZOLPLWVHWWLQJIXQFWLRQ
Selection items
Output low limit
4.0mA
The current value can be outputted up to 4.0mA (0%).
3.2mA
The current value can be outputted up to 3.2mA (5%).
2.4mA
The current value can be outputted up to 2.4mA (10%).
Note: If the low cutoff value in 8.2.12 “Low Cutoff” is set to a value other than 0%, the output low
limit value will be fixed to 4.0mA, regardless of the set value.
㸫 80 㸫
6 F 8 A 0 9 2 8 You can check or change the output low limit as described below.
The following is an example to change the output low limit value from 4.0mA to 2.4mA.
Switch operation
Description
Display example
*
P$
$/0
/2:/,0
(;,7
Select "LOW LIM" from the setting item
selection menu.
/2:/,0
P$
The currently set value (4.0mA in this
example) appears.
(6&
67(3
(6&
67(3
67(3
67(3 (1'
Then push
*Pushing (6& returns you to the setting
menu.
/2:/,0
P$
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
/2:/,0
P$
/2:/,0
P$
6(72."
(6&
.
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Function H: Digital Output Settings
8.2.18 Digital Output (Function H)
Digital output functions can be selected.
You can select the digital output function from the tables shown below.
For details of digital output functions, see 10, “Functional Description.”
㸫 81 㸫
6 F 8 A 0 9 2 8 ƔDigital output functions
Selection items
Digital output functions
NO USE
Not used
H ALM
High alarm output
L ALM
Low alarm output
HH ALM
High-High alarm output
LL ALM
Low-Low alarm output
EMPTY ALM
Empty pipe alarm output
RNG SIG1
Range output No. 1
RNG SIG2
Range output No. 2
PRESET C
Preset count output
CONV ALM
Converter failure alarm output
PLS OUT
Pulse output
PLS FRD
Fixed forward flow pulse output
PLS REV
Fixed reverse flow pulse output
MRH ALM
Multi-range high alarm output
MRL ALM
Multi-range low alarm output
Notes: When the range type is set to Forward/reverse multiple ranges, and if the pulse output
(PLS OUT) is selected, pulses of forward and reverse directions will be output.
For setting method of the range type, see 8.2.9, “Span (Range).”
ƔDigital output active status (Only when alarm output is set )
Selection items
Alarm output action
NormCLOSE
Normal: Contact closed, Alarm out: Contact open
NormOPEN
Normal: Contact open, Alarm out: Contact closed
ƔChanging the digital output function
The following is an example to change the Digital Output 1 (DO1) function from High alarm
output (H ALM) to Low alarm output (L ALM).
Switch operation
Description
Display example
+'2
'2)81&
'2)81&
'267$7
'267$7
(;,7
Select "DO1 FUNC" from the setting item
selection menu.
'2)8
81&
+$/0
The current setting (H ALM in this example)
appears.
(6&
67(3
(6&
㸫 82 㸫
Then push
.
* Pushing (6& returns you to the menu
screen.
6 F 8 A 0 9 2 8 Switch operation
67(3
67(3
67(3 (1'
Display example
'2)8
81&
+$/0
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
'2)8
81&
/$/0
'2)8
81&
/$/0
6(72."
(6&
2.
Description
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Function I: Digital Input Settings
8.2.19 Digital Input (Function I)
Digital input functions can be selected.
You can select the digital input function from the table shown below.
For details of digital input functions, see 10, “Functional Description.”
ƔDigital input functions
Selection items
NO USE
CNT ST/SP
CNT RS/ST
RNG SW
ZERO ADJ
FIX OUT
Digital input functions
Not used
Totalizer Start / Stop
Totalizer Reset / Start
Remote selection switch of multiple ranges
Still water zero adjustment start
Fixed output mode control
㸫 83 㸫
6 F 8 A 0 9 2 8 ƔDigital input control signal
You can select the detective level of the digital input, as shown below, to control the totalizer
and pulse output.
(Only when the digital input function is set for totalizer control input)
Selection items
Digital input function setting
Totalizer control signal
CNT ST/SP
㸦Totalizer START/STOP㸧
H signal㸸Totalizer STOP
L signal㸸Totalizer START
CNT RS/ST
㸦Totalizer RESET/START㸧
H signal㸸Totalizer START
L signal㸸Totalizer RESET
CNT ST/SP
㸦Totalizer START/STOP㸧
H signal㸸Totalizer START
L signal㸸Totalizer STOP
CNT RS/ST
㸦Totalizer RESET/START㸧
H signal㸸Totalizer RESET
L signal㸸Totalizer START
L LEVEL
H LEVEL
ƔChanging the digital input function
The following is an example to change the Digital Input (DI) function from No use (NO
USE) to Totalizer Start / Stop (CNT ST/SP).
Switch operation
Description
Display example
,',
',)81&
'(7/9/
(;,7
Select "DI FUNC" from the setting item
selection menu.
',)8
81&
1286(
The current setting (NO USE in this
example) appears.
(6&
67(3
(6&
67(3
67(3
Then push
.
* Pushing (6& returns you to the menu
screen.
',)8
81&
1286(
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
',)8
81&
&176763
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
㸫 84 㸫
6 F 8 A 0 9 2 8 Switch operation
67(3 (1'
Display example
',)8
81&
&176763
6(72."
(6&
2.
Description
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Function J: Count and Pulse Settings
8.2.20 Count Rate (Pulse Rate), Pulse Width Setting Mode and Pulse Width
(Function J)
In this section, the volume per count (pulse) for totalized flow operation and the pulse width for
totalization pulse output can be set.
The totalized flow counts is not affected by the display setting but it is recommended that you set a
volume unit for Display 1 or Display 2 to check its operation.
ƔThe count rate must be set so that the pulse output at 100% output is within the range below:
3.6 to 36000000 pulse/h (0.001 to 10000 pulse/s).
If you try to set a value outside of this range, an error message HIGH OVER SPEC or LOW
OVER SPEC appears and the value returns to the previous value.
Note: Count rate setting range
Example: In the case the range is 360m3/h (0.1m3/s),
Minimum value (for 36000000 pulse/h):
360(m3/h) / 36000000(pulse/h) = 0.00001m3 = 0.1L (liter).
Maximum value (for 3.6 pulse/h):
360(m3/h) / 3.6(pulse/h) = 100m3.
Ɣ7KHSXOVHZLGWKPXVWEHVHWWRDYDOXHZLWKLQWKHUDQJHRI0.3ms to 500ms.
If you try to set a value exceeding 500 ms, the value will be forcibly changed to 500ms.
Ɣ7KHSXOVHZLGWKPXVWEHVHWWR40% or less of the period of pulse frequency at 100% output.
If you try to set a value exceeding the limit, regardless of the setting above, an error message HIGH
OVER SPEC appears and the value returns to the previous value.
If the pulse width is set to 0, it will be automatically set to 40% of the period of pulse frequency at
100% output. In this case, the pulse width setting mode remains in the Manual mode. If the calculation
result exceeds 100ms, it will be forcibly set to 100ms.
㸫 85 㸫
6 F 8 A 0 9 2 8 Ɣ)RUSXOVHZLGWKVHWWLQJPRGH\RXFDQVHOHFWHLWKHUAUTO or MANUAL.
Depending on this setting, the pulse width setting varies as shown in the table below:
Selection item
Pulse width value to be set
After the count rate is set, the pulse width is automatically set
AUTO
to 40% of the period of pulse frequency at 100% output.
Even after the count rate is set, the pulse width is not changed.
However, if the pulse width becomes out of the setting
MANUAL
range as a result of count rate setting, the screen is
automatically switched to the pulse width setting screen
after the count rate is set.
Note: If the count rate exceeds 1000 (pulse/s), the pulse width setting mode is limited to the AUTO
mode only and you cannot set the width manually.
Ɣ([DPSOHVRISXOVHZLGWKVHWWLQJUDQJH
Example 1
In the case the range is 360m3/h (1m3/s) and the count rate is 0.0001m3:
Since the pulse rate is 360 (m3/h) / 0.0001(m3) = 3600000 pulse/h (1000 pulse/s), the period of
pulse frequency at full scale is 1ms.
Therefore, the pulse width can be set only to: 1ms u 40% = 0.4ms only.
Example 2
In the case the range is 360m3/h (1m3/s) and the count rate is 1000m3:
Since the pulse rate is 360(m3/h) / 100(m3) = 3.6 pulse/h (0.001 pulse/s), the
period of pulse frequency at full scale is 1000000ms.
Therefore, the pulse width is: 1000000ms u 40% = 400000ms. However, since the
maximum value is 500ms, the pulse width becomes 500ms.
Example 3
In the case the range is 360m3/h (1m3/s), the count rate is 0.1m3 and the pulse width is set to
0ms:
Since the pulse rate is 360(m3/h) u 0.1(m3) = 3600 pulse/h (1 pulse/s), the period
of pulse frequency at full scale is 1000ms.
Therefore, the pulse width is: 1000ms u 40% = 400ms. However, since the
maximum value is 100ms in the case of Auto setting, the pulse width
becomes 100ms.
㸫 86 㸫
6 F 8 A 0 9 2 8 You can check or change the count rate and pulse width as described below.
The following is an example to change the count rate from 0.01m3 to 0.9 L.
Switch operation
67(3
(6&
67(3
Description
Display example
&175$7(
P
The currently set count rate (0.01m3 in this
example) appears.
Then push
.
&175$7(
P
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
&175$7(
/
Push
to move the cursor to the digit
of the unit and push
to change from
3
“m ” to “L”.
67(3
&175$7(
/
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
67(3 (1'
&175$7(
/
6(72."
(6& 2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
Pushing (6& cancels the setting operation
and exits the setting screen.
12
To set the pulse width setting mode or pulse width, select the relevant item below from the setting
menu.
Pulse width setting mode
Pulse width
PLS MODE
PLS WID
㸫 87 㸫
6 F 8 A 0 9 2 8 Note 1: The units of count rate change cyclically as shown below:
m³
L
mL
bbl
gal
pt
qt
ft3
Mgl
Mgl = 1,000,000 gal
Note 2: After the count rate is set, related parameters are automatically set under the following
conditions:
(1) Pulse width
When the pulse width setting mode is AUTO:
Pulse width will be automatically set according to the count rate.
When the pulse width setting mode is MANUAL:
After the count rate is set, if the pulse width is out of the setting
range, the screen changes automatically to the pulse width setting
screen.
(2) Digital Output 1 (DO1)
When the count rate is set from zero to other than zero:
If the digital output setting is NO USE,
Pulse output (PLS OUT) will be automatically set to Digital Output 1 (DO1)
setting.
Note 3:
Relationship between the count rate and totalizer operations
Count rate is set to zero while totalizer is in operation.
Ļ
Totalizer will be forced to stop.
Ļ
Count rate is set to other than zero.
Ļ
Totalizer starts counting again.
If the count rate is changed from a value other than zero to other value, the operation of
totalizer does not change.
Note 4: If the pulse width setting mode is set to MANUAL, the screen automatically changes to the
pulse width setting screen.
Function K: Preset Settings
8.2.21 Preset Count (Function K-1)
You can set the preset count for the preset counter.
Preset count can be set within the range of 0 to 99999999.
Preset counter will not be affected by the display setting but it is recommended that one of the volume
units be set as the display unit so that the operating condition of the counter can be checked.
* Preset mode can be selected. For details, see 8.2.22, “Preset Mode.”
Note: Preset counter works only for foreword flow counts.
㸫 88 㸫
6 F 8 A 0 9 2 8 You can check or change the preset count as described below.
The following is an example to change the preset count value from 500 (count) to 1000 (count).
Switch operation
Description
Display example
.35(6(7&
35679$/
28702'(
(;,7
Select "PRST VAL" from the setting item
selection menu.
35679$/
The currently set value (500 in this
example) appears.
(6&
67(3
(6&
67(3
Then push
.
35679$/
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
35679$/
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
67(3 (1'
35679$/
6(72."
(6& 2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
㸫 89 㸫
Pushing (6& cancels the setting operation
and exits the setting screen.
6 F 8 A 0 9 2 8 8.2.22 Preset Mode (Function K-2)
The preset mode determines the function when the totalizer reaches the preset count.
The present mode can be set from the items shown below.
ƔPreset mode
Selection items
Preset mode
HOLD
Holds the output value.
50ms PLS
Outputs a one shot pulse of 50ms width.
500ms PLS
Outputs a one shot pulse of 500ms width.
Note: If you set the preset mode to "50ms PLS" or "500ms PLS", you need to set the preset
count to 1, 2, 5, 25, 125 u10n. (If you set a value that does not meet this condition, the
preset output timing may be shifted when the totalizer overflows.
You can check or change the preset mode as described below.
The following is an example to change the present mode from Output condition hold (HOLD)
to One-shot pulse output with pulse width of 50ms (50ms PLS).
Switch operation
Description
Display example
.35(6(7&
35679$/
28702'(
(;,7
Select "OUT MODE" from the setting item
selection menu.
28702'(
+2/'
The current setting (HOLD in this example)
appears.
(6&
67(3
(6&
㸫 90 㸫
Then push
.
* Pushing (6& returns you to the menu
screen.
6 F 8 A 0 9 2 8 Switch operation
67(3
67(3
67(3 (1'
Description
Display example
28702'(
+2/'
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
28702'(
PV3/6
28702'(
PV3/6
6(72."
(6&
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Function L: High/Low Alarm Settings
Function M: High-High/Low-Low Alarm Settings
8.2.23 Flow Rate High/Low Alarm and High-High/Low-Low Alarm
(Function L, Function M)
The high/low limit, high-high/low-low limit of the flow rate, at which an alarm is generated, can be set
as % value of the span flow rate of the set maximum range.
The high/low alarm, and high-high/low-low alarm values for flow rate can be set within the range of
10% to 110% (percentage to Range 1) in increments of 0.1%. The cancellation point (hysteresis) for
the alarm is set to 2.5% (with respect to the value set for Range 1).
ƔChanging the high/low alarm on/off setting
The following is an example to change the high alarm setting from OFF to ON.
Switch operation
Description
Display example
/+/$/0
+6(7
+9$/
/6(7
/9$/
(;,7
Select "H SET" from the setting item
selection menu.
+6(7
2))
The current setting (OFF in this example)
appears.
(6&
67(3
(6&
Then push
.
* Pushing (6& returns you to the menu
screen.
㸫 91 㸫
6 F 8 A 0 9 2 8 Switch operation
67(3
67(3
67(3 (1'
Description
Display example
+6(7
2))
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
+6(7
21
+6(7
21
6(72."
(6&
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
ƔChanging the high/low alarm value
The following is an example to change the high alarm value from +105% to +103%.
Switch operation
Description
Display example
/+/$/0
+6(7
+9$/
/6(7
/9$/
(;,7
Select "H VAL" from the setting item
selection menu.
+9$/
The currently set value (+105% in this
example) appears.
(6&
67(3
(6&
67(3
Then push
.
+9$/
㸫 92 㸫
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
6 F 8 A 0 9 2 8 Switch operation
67(3
Description
Display example
+9$/
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
67(3 (1'
+9$/
6(72."
(6& 2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
Pushing (6& cancels the setting operation
and exits the setting screen.
Note: If you try to set a value outside of the range 10% to +110%, LOW OVER SPEC or
HIGH OVER SPEC error appears and the value returns to the previous value. Set a
value once again.
Function N: Self-diagnosis Function Settings
8.2.24 Empty Pipe Alarm Setting (Function N-1)
You can select on/off setting for the alarm to notify that the fluid in the measuring pipe is emptied. If the
empty pipe alarm is set to ON and the fluid is emptied, EMPTY ALARM error will be displayed.
ƔEmpty pipe alarm setting
Selection items
Description
OFF
Empty pipe alarm is off
NORMAL
Empty pipe alarm is on, and sensitivity level is low.
SENS
Empty pipe alarm is on, and sensitivity level is medium.
SENS-HI
Empty pipe alarm is on, and sensitivity level is high.
When you use the fluid empty alarm, usually set NORMAL (sensitivity level low). Use
other settings of sensitivity level SENS or SENS-HI only when it is difficult to detect an
empty condition because of the conditions of measuring fluid or piping.
ƔChanging the empty pipe alarm setting
The following is an example to change the alarm setting from OFF to SENS-HI.
Switch operation
Display example
16(/)&+.
(037<
6(/)&+.
&219$/0
(;,7
(6&
㸫 93 㸫
Description
Select "EMPTY" from the setting item
selection menu.
6 F 8 A 0 9 2 8 Switch operation
67(3
(6&
67(3
67(3
67(3 (1'
Description
Display example
(037<
2))
The current setting (OFF in this example)
appears.
Then push
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
(037<
2))
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
(037<
6(16+,
(037<
6(16+,
6(72."
(6&
.
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
8.2.25 Mag-Prover-Self Diagnosis ON/OFF Setting (Function N-2)
You can select on/off setting for Mag-Prover’s self-diagnosis function.
If the self-diagnosis function is set to OFF, no error message is displayed even if any of the errors listed
below occurs.
x ROM error
x RAM error
x System parameter error
x Excitation cable is not connected or its wiring is open
x Excitation circuit failure
x ADC circuit error
x Totalizer data is destroyed
Selection items
Description
OFF
Self-diagnosis function is turned off.
ON
Self-diagnosis function is turned on.
If this function is set to ON and an error occurs, an error message appears on the Display 2 measured
value screen. If an error occurs, the measurement items specified for Display 2 screen cannot be
displayed unless the error is removed.
㸫 94 㸫
6 F 8 A 0 9 2 8 ƔChanging the Mag-Prover’s self-diagnosis function setting
The following is an example to change the Mag-Prover’s self-diagnosis setting from OFF to ON.
Switch operation
Description
Display example
16(/)&+.
(037<
6(/)&+.
&219$/0
(;,7
Select "SELF CHK" from the setting item
selection menu.
6(/)&+.
2))
The current setting (OFF in this example)
appears.
(6&
67(3
(6&
67(3
67(3
67(3 (1'
Then push
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
6(/)&+.
2))
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
6(/)&+.
21
6(/)&+.
21
6(72."
(6&
2.
.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
8.2.26 Converter Alarm (Function N-3)
If "Converter alarm output" is set for Digital output function, a digital signal will be output in case the
converter’s self-diagnosis function detects an error.
In this case, you can set whether the empty pipe alarm is to be included in the converter alarm items.
Selection items
CONV ONLY
Description
Empty pipe alarm is not included in the converter alarm
output items.
WITH EMP
Empty pipe alarm is included in the converter alarm
output items.
* For other alarm items, see 8.2.25 "Mag-Prover-Self Diagnosis ON/OFF Setting."
㸫 95 㸫
6 F 8 A 0 9 2 8 ƔChanging the converter alarm function
The following is an example to change the converter alarm function from WITH EMP to
CONV ONLY.
Switch operation
Description
Display example
16(/)&+.
(037<
6(/)&+.
&219$/0
(;,7
Select "CONV ALM" from the setting item
selection menu.
&219$/0
:,7+(03
The current setting (WITH EMP in this
example) appears.
(6&
67(3
(6&
67(3
67(3
67(3 (1'
Then push
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
&219$/0
:,7+(03
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
&219$/0
&21921/<
&219$/0
&21921/<
6(72."
(6&
2.
.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
Function O: Fixed Value Output Settings
8.2.27 Fixed Value Output (Function O-1)
The fixed value output function is used to output a fixed current and/or a fixed pulse output
independently of the flow rate signal. (The fixed pulse output is available only when Digital Output 1
(DO1) or Digital Output 2 (DO2) is used for pulse output function. For DO2, output can be obtained
only when fixed pulse output is 100pps or less.
The fixed-value output can be set in the ranges described below. (Current output and pulse output can be
set and output at the same time.)
x Fixed current output:
2.4 to 24 mA (can be set in increments of 0.1 mA)
x Fixed pulse output:
0 to 10000 pps (can be set in increments of 1 pps)
㸫 96 㸫
6 F 8 A 0 9 2 8 If fixed output is set to ON, Display 2 screen is used to indicate the fixed output in the measurement
mode.
Operation when fixed output is set to ON
Current output Output is the fixed current output value.
Pulse output Output is the fixed pulse rate pulse signal.
Digital output other than
Status in hold
pulse output
Display
Display 2 screen: Used to indicate the fixed output
(Note)
Display example:
3
3
6
P
$
First line:
Pulse count (5 digits maximum), Unit: (PPS) fixed
Second line: Current output (4 digits including a decimal point), Unit: (mA) fixed
This fixed value output function does not work in the calibration mode.
When OFF is selected in the fixed output function, the setting for output is not needed.
ƔChanging the fixed output function
The following procedure shows how to set the fixed output to ON and set the fixed current
value/fixed pulse value. The fixed current value and fixed pulse value can be set
independently.
Switch operation
Description
Display example
2),;287
),;6(7
&859$/
3/69$/
(;,7
Select "FIX SET" from the setting item
selection menu.
),;6(7
2))
The current setting (OFF in this example)
appears.
(6&
67(3
(6&
67(3
67(3
Then push
.
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
),;6(7
2))
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
),;6(7
7
21
㸫 97 㸫
6 F 8 A 0 9 2 8 Switch operation
67(3
(6&
67(3
2.
Description
Display example
),;6(7
21
6(72."
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
&859$/
P$
The screen automatically changes to the
fixed current value setting screen.
The currently set value (4.0mA in this
example) appears.
67(3
&859$/
P$
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
67(3
&859$/
P$
6(72."
(6& 2.
67(3
2.
67(3
67(3 (1'
3/69$/
336
3/69$/
336
3/69$/
336
6(72."
(6& 2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
Pushing (6& cancels the setting operation
and exits the setting screen.
The screen automatically changes to the
fixed pulse rate setting screen.
The currently set value (0 PPS in this
example) appears.
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
㸫 98 㸫
Pushing (6& cancels the setting operation
and exits the setting screen.
6 F 8 A 0 9 2 8 Note 1: If you try to set a value outside of the range, 2.4mA or 24mA (in the case of fixed current
output) or 10000pps (in the case of fixed pulse output) will be forcibly set.
Note 2: The pulse width set in Section 8.2.20 is used for fixed pulse output. The pulse width must not
be greater than 40% of the period of the fixed output set frequency. However, if the setting
exceeds 1000pps, the pulse width automatically will be set to 40% of the period of the fixed
output set frequency.
Note 3: If the fixed output is set to ON, the screen automatically changes to the fixed output current
value and fixed output pulse value setting screen. However, the fixed output actually starts
when the fixed output pulse value setting is completed. (If the fixed output current value or
fixed output pulse value is set independently, the fixed output starts when either of the setting is
completed.)
Function P: Other Settings
8.2.28 Password Setting (Function P-1)
For converter version V0104 or earlier:
The password function is provided to prohibit the settings and adjustment for some of the functions
affecting the flow measurement. See the setting menu in 7.4 “Setting and Calibration Items Selection
List.”
You can check or change the password as described below.
ƔChecking the password
Switch operation
Display example
Description
327+(56
3$66:25'
/&'$'-
6:3261
'(77<3(
(;,7
Select "PASSWORD" from the setting item
selection menu.
3$66:25'
The currently set password appears.
(6&
67(3
(6&
67(3 (1'
(6&
327+(56
3$66:25'
/&'$'-
6:3261
'(77<3(
(;,7
(6&
㸫 99 㸫
Pushing (6& returns you to the setting
menu.
6 F 8 A 0 9 2 8 * However, if a wrong password is entered when the mode is changed from the measuring mode to the
setting mode, appears and the password cannot be checked.
Switch operation
Description
Display example
3$66:25'
(6&
The currently set password is displayed as
and the password cannot be checked.
ƔChanging the password
The following is an example to change the password from 123 to 453.
Switch operation
67(3
3$66:25'
(6&
67(3
Description
Display example
Select "PASSWORD" from the setting item
selection menu.
The currently set password (123 in this
example) appears.
Then push
.
3$66:25'
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
3$66:25'
Push
to move the cursor to the digit
you want to change and push
to
change the number of the digit.
67(3 (1'
3$66:25'
6(72."
(6& 2.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
Pushing (6& cancels the setting operation
and exits the setting screen.
㸫 100 㸫
6 F 8 A 0 9 2 8 For converter version V0105 or later:
The password function allows for setting of protection levels.
Protection Level 1
Converter operation is similar to when the password is set in converter versions V0104 and
earlier. Please refer to the menu configuration table in 7.4 “Setting and Calibration Items
Selection List” for the functions protected by this level.
Protection Level 2
If the password input is incorrect, entering the settings mode is prohibited. Viewing and
setting of all parameters, as well as zero adjustment and totalizer operations are not allowed. The
communication function is set to Write Protect mode. (Reading of measurement values and
parameters is allowed. However, execution of all write commands returns an error.)
Note 1: When the password is set to ‘000’, the protection level will automatically be set to Level 1.
Note 2: When the protection level is set to Level 2, the display will be forciby returned to measurement
mode after exiting from the password setting screen.
Note 3: Even when Protection Level 2 is set, all operations due to the digital input function are excluded
from the scope of protection.
ƔChanging the password and the protection level
The following is an example to change the protection level from Level 1 to Level 2 and the
password from 123 to 453.
Switch Operation
67(3
Display Example
3$66:25'
/9
(6&
67(3
Description
Select "PASSWORD" from the setting item
selection menu.
The currently set password and protection
level (Level 1, 123 in this example)
appears.
Then push
.
3$66:25'
/9
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
67(3
3$66:25'
/9
Push
to change the protection level.
67(3
3$66:25'
/9
Push
password.
㸫 101 㸫
to move the cursor to the
6 F 8 A 0 9 2 8 Switch Operation
67(3
Display Example
3$66:25'
/9
Description
Push
to move the cursor to the digit
you want to change and push
to
change the digit.
67(3
3$66:25'
/9
6(72."
(6& 2.
67(3
67(3 (1'
(6&
3$66:25'
/9
(6&
P K
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
12
Pushing (6& cancels the setting operation
and exits the setting screen.
The currently set password and protection
level will be displayed.
For Protection Level 2, upon pushing (6&
the screen will automatically return to
measurement mode.
P
Note 1: If you set ‘000’ for the password, it is considered as if the password is not used. In this case, the
password input confirmation screen does not appear when you move from the measurement
mode to the setting mode and all restrictions on the parameter setting items and calibration
screen will be removed.
Note 2: When you set your password, please be sure not to forget your password.
The password including how to check the password should be managed based on the
management standard of the system you use.
Note 3: Please refer to page 45 for details on how to check the converter version.
㸫 102 㸫
6 F 8 A 0 9 2 8 8.2.29 LCD Adjustment (Function P-2)
This section describes how to set the LCD density adjustment value for the converter display.
The LCD density can be set in 5 levels.
LCD density adjustment level
LCD density
1 2 3 4 5
Light Dark
The LCD density adjustment value is set to "3" when shipped from the factory.
The display of the LCD gradually becomes thinner over time.
If the display is getting difficult to read, you need to adjust the density level using this parameter.
The following is an example to change the LCD density adjustment level from 3 to 5 DARK.
Switch operation
Description
Display example
327+(56
3$66:25'
/&'$'-
6:3261
'(77<3(
(;,7
Select "LCD ADJ" from the setting item
selection menu.
/&'$'-
The current setting (3 in this example)
appears.
(6&
67(3
(6&
67(3
67(3
67(3 (1'
Then push
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
/&'$'-
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
/&'$'-
'$5.
/&'$'-
'$5.
6(72."
(6&
.
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
㸫 103 㸫
6 F 8 A 0 9 2 8 8.2.30 Switch Position Setting (Function P-3)
The switch position of the converter display can be set.
The position setting of the switch enables the display remains the same in orientation, regardless of
which direction relative to the piping the converter is installed.
You can set the switch position by selecting one from four positions described below.
(1) Switch position: TOP
The infrared switches are located at the top with the front facing you.
(6&
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Infrared switches
(2) Switch position: BOTTOM (Standard)
The infrared switches are located at the bottom with the front facing you.
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Infrared switches
(6&
(3) Switch position: LEFT
The infrared switches are located at left with the front facing you.
㹃㹑㹁 $'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Infrared switches
(4) Switch position : RIGHT
arelocated
at right with the front facing you.
The infrared switches
㹃㹑㹁 $'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Infrared switches
㸫 104 㸫
6 F 8 A 0 9 2 8 The following is an example to change the switch position setting from BOTTOM to TOP.
Switch operation
Description
Display example
327+(56
3$66:25'
/&'$'-
6:3261
'(77<3(
(;,7
Select "SW POSN" from the setting item
selection menu.
6:3261
%27720
The current setting (BOTTOM in this
example) appears.
(6&
67(3
(6&
67(3
67(3
67(3 (1'
Then push
* Pushing (6& returns you to the menu
screen.
The switches at the bottom change.
(
are shown.)
At the same time, the cursor appears.
(The item indicated by the cursor is
highlighted.)
6:3261
%27720
Then push
.
You can continue to change the setting item.
Push
to change the selection
items.
: Selected item is scrolled up.
: Selected item is scrolled down.
When the desired item is selected, push
to set the item temporarily.
When you push
, a message appears
to confirm whether the setting is OK or not.
If OK, push 2. . If you want to redo the
setting, push 12 .
6:3261
723
6:3261
723
6(72."
(6&
.
2.
Pushing (6& cancels the setting operation
12
and exits the setting screen.
㸫 105 㸫
6 F 8 A 0 9 2 8 Function Q: Communication Settings
8.2.31 Communication Setting (Function Q)
This setting is needed when optional PROFIBUS or Modbus communication board is installed.
For details, refer to the instruction manual of PROFIBUS or Modbus communication board.
Note: If communication board is not used, this address setting is not needed.
Function R: Calibration Settings
8.2.32 Detector type (Function R)
Please set detector type according to the model of the detectors as shown in the table below.
Detector
type
EXC CAL
K-FAC
CAL
LF414
ۑ
Model of detector
LF434 LF450 LF470 LF494
ۑ
ۑ
ۑ
ۑ
LF654
ۑ
LF664
ۑ
Note: Please note that this setting influences the instruction.
㸫 106 㸫
GF63*
ۑ
6 F 8 A 0 9 2 8 When combining models LF66* and GF642 , it is necessary to set the parameters as shown below.
1) Detector type
Change the DET TYPE in Function P4
from EXC CAL to K-FAC CAL.
327+(56
3$66:25'
/&'$'-
6:3261
'(77<3(
(;,7
'(77<3(
.)$&&$/
(6&
2) Bore size
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
Change the SIZE in Function A2 to
the bore size of the detector used for
combination.
6,=(
LQ
(6&
3) K Factor
Set the value in K FACTOR of
Function F3. Please refer to the name
plate on the detector for the value to be
set.
)=(52
=(52$'-
0$18$/
.)$&725
(;,7
.)$&725
(6&
K Factor
Name plate
4) Exciting current
Verify if the EXC CUR in Function A1
is 0.2000A (Adjustment is not required).
$'(7(&725
(;&&85
6,=(
(;&)5(4
)/2:',5
(;,7
(6&
㸫 107 㸫
(;&&85
$
(6&
&
6 F 8 A 0 9 2 8 8.3 Parameter initial settings list
Unless otherwise specified, the default values for each parameter shown below are set when shipped from
the factory:
Parameter names
Excitation frequency
Flow direction
Display 1
Display 2
Display digit setting
(for Display 1 and Display 2)
Custom coefficient
Default value(SI unit)
Value(*1)
NORMAL
m3/h
m3
1/1000
Default value(English unit)
Value(*1)
NORMAL
gal/min
COUNT B
1/1000
Range type
Range 1
Ranges 2 to 4
Hysteresis
Damping constant
Rate-of-change limit
Control limit time
Low cutoff
Display low cutoff
Manual zero
420mADC alarm output
Output low limit setting
Digital output 1
Digital output 2
DO1/DO2 active status
Digital input
DI detective level
Count rate
Pulse width setting mode
Pulse width
Preset count
Preset function
High alarm On/Off
High alarm value
Low alarm On/Off
Low alarm value
High-High alarm On/Off
High-High alarm value
Low-Low alarm On/Off
Low-Low alarm value
Empty pipe alarm
Self-diagnosis On/Off
Converter alarm
Fixed value output
Fixed value current
Fixed value pulse
Password
1.0
“ CUSTOM”
(Head of character string is blank )
SINGLE
Value(*1)
0.00 m3/h
3.0 %
1.0s
0.0 %
0.0 s
1.0 %
LINEAR
0.0 %
4mA
4mA
PLS OUT
NO USE
NormOPEN
NO USE
H LEVEL
Value(*1)
AUTO
100 ms
00000000
HOLD
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
NORMAL
ON
CONV ONLY
OFF
4mA
0 pps
000
LCD density adjustment
Switch position setting
Detector type
3
BOTTOM
EXC CAL
1.0
“ CUSTOM”
(Head of character string is blank )
SINGLE
Value(*1)
0.00 gal/min
3.0 %
5.0s
0.0 %
0.0 s
1.0 %
LINEAR
0.0 %
4mA
4mA
PLS OUT
EMPTY ALM
NormOPEN
NO USE
H LEVEL
Value(*1)
AUTO
5 ms
00000000
HOLD
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
NORMAL
ON
CONV ONLY
OFF
4mA
0 pps
000 (converter version V0104 or earlier)
LV1,000 (converter version V0105 or later)
3
BOTTOM
EXC CAL
Custom unit
*1: See the setting values for each meter size in the table below.
㸫 108 㸫
6 F 8 A 0 9 2 8 When parameter value was appointed in order, parameter value may be different from list.
Setting values for each meter size
Ex.
Range 1 (SI unit)
Meter Size
Freq
(mm)
(m3/h)
(m/s)
(Hz)
15
24
2
3.144
25
32
40
50
65
80
100
125
150
200
250
300
350
400
450
500
600
700
750
800
900
24
24
24
24
24
24
24
24
24
24
12
12
12
12
12
6
6
6
6
6
6
6
10
15
25
40
60
100
150
200
300
600
900
1200
1600
2000
3000
4000
5000
6000
7000
9000
3.395
3.454
3.316
3.537
3.348
3.316
3.537
3.395
3.144
2.653
3.395
3.537
3.465
3.537
3.493
4.244
3.930
3.609
3.773
3.868
3.930
Range 1 (English unit)
Count rate
(gal/min)
(ft/s)
(SI unit)
(English unit)
25
75
125
175
300
475
650
1000
1750
2500
4500
7000
10000
12000
16000
20000
25000
40000
50000
60000
70000
80000
29.283
31.625
32.171
28.826
31.625
29.629
26.766
26.354
31.625
29.283
29.649
29.517
28.283
25.817
26.354
26.029
26.354
29.283
26.892
28.112
28.825
26.029
0.01m3
0.01 m3
0.01 m3
0.01 m3
0.1 m3
0.1 m3
0.1 m3
0.1 m3
0.1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1gal
1gal
1gal
1gal
10gal
10gal
10gal
10gal
10gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
㸫 109 㸫
6 F 8 A 0 9 2 8 9. Mag-Prover-Calibration
9.1 Calibration Items
When you check or calibrate the converter or check the excitation current, you have to change the mode to
the calibration mode.
You can check or change the zero and span of the converter and the excitation current value as described
below.
However, calibration is already performed when shipped from the factory. Do not perform
change calibration unless it is specificity required.
Items
9.2.1
9.2.2
9.2.3
9.2.4
Function items
0 % flow rate calibration
50 % flow rate calibration
100 % flow rate calibration
Checking the excitation current output
㸫 110 㸫
Display example
CAL 0%
CAL 50%
CAL 100%
EXC DSPL
6 F 8 A 0 9 2 8 9.2 Calibration Using Mag-Prover’s Built-In Signal Source
9.2.1 0 % Flow Rate Calibration (Zero Calibration)
Using Mag-Prover’s internal calibration circuit, 0% flow rate calibration (hereafter called zero
calibration) can be performed.
ƔZero point check / calibration
Switch operation
Description
Display example
5&$/
&$/
&$/
&$/
(;&'63/
(;,7
Select "CAL 0" from the setting item
selection menu.
&$/
When the calibration screen is selected, the
internal simulation circuit starts working and
0% value using the internal simulation
signal appears.
Then push and hold
longer.
* Pushing (6& returns you to the setting
menu.
(6&
67(3
(6&
67(3
/RQJHU
$'-5($'<
2.
67(3
2.
67(3 (1'
The title of the screen changes to “ADJ
READY” and the converter is is ready for
calibration.
Pushing 12 returns you to the previous
screen.
12
12:
$'-867,1*
Push
rate.
&$/
It takes several seconds to perform
calibration for 0% flow rate and the
simulated value of 0% after calibration
appears.
(6&
2.
to start calibration for 0% flow
Pushing (6& returns you to the setting
menu.
Note 1:
To perform calibration, push and hold
Note 2:
To cancel the adjustment when ADJ READY is displayed, push 12 .
The screen returns to the zero display using the simulation input.
㸫 111 㸫
longer.
6 F 8 A 0 9 2 8 9.2.2 50 % Flow Rate Calibration
Using Mag-Prover’s internal calibration circuit, 50% flow rate calibration can be confirmed.
9.2.3 100 % Flow Rate Calibration (Span Calibration)
Using Mag-Prover’s internal calibration circuit, 100% flow rate calibration can be performed. For
calibration procedure, see the calibration procedure for 0% flow rate. (For 100% flow rate calibration,
select "CAL 100%" from the setting menu.)
9.2.4 Checking the Excitation Current
You can monitor the exciting current value.
ƔChecking the exciting current value
Switch operation
Description
Display example
5&$/
&$/
&$/
&$/
(;&'63/
(;,7
Select "EX DSPL" in the setting item
selection screen.
(;&'63/
$
The excitation current value appears.
(6&
67(3
(6&
Pushing
menu.
㸫 112 㸫
(6&
returns you to the setting
6 F 8 A 0 9 2 8 10. Functional Description
The LF62F Series Electromagnetic Flowmeter is equipped with two contact output terminals (digital
output terminals (DO1, DO2)) and one external input terminal (digital input (DI)), enabling you to use
various functions, such as pulse output and alarm output.
The following functions are provided using the digital I/O functions are described below.
Functions
Required DO, DI
Outline description
Totalization
Totalizes the flow volume in volumetric unit.
The totalized flow volume can be output (pulse output) for each unit
DO:1 of volume.
DI:0 or 1
The totalizer and pulse output can be controlled (start, stop and reset)
by an external signal.
Multiple ranges
DO:1 or 2
DI:0 or 1
Multiple measuring ranges can be selected in accordance with the flow
rate. The measuring ranges can be selected either automatically or by
an external signal.
Forward and reverse ranges
DO:1
Forward and reverse flows can be measured. The forward and reverse
flow measurements can be used together with multiple ranges
function.
High / Low alarm
High-High / Low-Low alarm
DO:1 or 2
Outputs an alarm signal when the flow rate signal exceeds or lowers
below the preset values.
Preset counter
DO:1
When the totalizer count exceeds its preset value, the converter
outputs a contact output signal.
Remote still water
zero adjustment
DI:1
Still water zero adjustment can be started by an external signal.
Remote fixed value output
DI:1
Arbitrarily fixed current output and/or fixed pulse output can be used to
check a process loop circuit of output.
The fixed output mode can also be selected by an external signal.
Converter failure alarm
DO:1
The converter outputs an alarm signal if an error such as memory error
or excitation circuit error occurs.
DO:2
DI:1
Working in line with upper/lower range selection by an external signal,
high/low alarm and high-high / low-low alarm can be switched for the
flow rate signal to output an alarm signal.
Multi-range high
/ low alarm
㸫 113 㸫
6 F 8 A 0 9 2 8 10.1 Digital I/O Specifications
The specifications of the digital I/O terminals for the converter for electromagnetic flowmeter: LF62F are
as follows:
Digital Output 1(DO1 )
Output type:
Transistor open collector
Number of outputs:
1
Capacity:
30 V dc, 200 mA maximum
Digital Output 2(DO2 )
Output type:
Solidstate relay (non polarity)
Number of outputs:
1
Capacity:
150 V dc, 150 mA maximum
150 V ac(peal-to-peak), 100 mA maximum
Digital Input (DI )
Input signal:
20 to 30 V dc voltage signal
x High input level—20 to 30 V dc
x Low input level—2 V dc maximum
Input resistance:
$SSUR[LPDWHO\Nȍ
Number of inputs:
One point
x Each I/O terminal can be used as a specified function terminal when selected.
x Terminal COM is the signal COMMON for the other three terminals (DO1, DO2 and DI).
x Each terminal is isolated from the internal circuits.
(The output terminals are not isolated from each other.)
x In standard specification (without digital I/O), semiconductor contact, photo coupler, and resistor
are not built in. Left DO2 and DI unconnected.
Solidstate relay
Transistor open collector
Photo coupler
Resistor
COM
Flowmeter
DI
DO2
Voltage input (DI)
Contact output 2 (DO2)
Contact output 1 (DO1)
㸫 114 㸫
DO1
6 F 8 A 0 9 2 8 10.2 Totalizer and Pulse Output
To use the totalizer and pulse output for external use, proceed as follows.
Count rate and Pulse Width Setting
Set the flow volume per count (pulse) (count rate) and the pulse width. See 8.2.20, “Count
rate, Pulse Width Setting Mode and Pulse Width.”
* The count rate can be set within the range below in reference to the
setting range:
3.6 (pulse/s) to 36000 pulse/h
(1/1000 pulse/s to 10000 pulse/s) (Note 1)
* The pulse width can be set within the range 0.3ms to 500ms.
However, the pulse width must be set to 40% or less of the period of
output frequency at full scale. (Note 2)
If the pulse width setting mode is AUTO, the pulse width is automatically set. If the pulse width
setting mode is MANUAL, set it after checking the acceptable signal width of the receiving
instruments.
If pulse output is not used, pulse width setting is not needed.
DO setting
Refer to 8.2.18, "Digital Output" to set the Digital Output 1 (DO1) for Pulse output (PLS
OUT).
If the digital output function is not set (NO USE) though count rate is set, it will be set to
pulse output automatically.
If pulse output is not used, this setting is not needed.
Return to Measurement Mode
Set the operation mode of the system to the measurement mode. Refer to 7.3.1, “Changing the
Mode.”
Clear (reset) the totalizer. (Note 3)
Clear the count by pushing and holding &//5 on the totalizer control screen.
If you have changed the count rate, clear (reset) the totalizer before you start the totalizer.
Start the totalizer. (Note 3)
Start the totalizer by pushing
on the totalizer control screen and check that “ ” is
shown on the display indicating that the totalizer is in operation.
㸫 115 㸫
6 F 8 A 0 9 2 8 Note 1: Example of count rate setting range:
The count rate can be set within the range from the minimum value (36000000 pulse/h) to the
maximum value (3.6 pulse/h).
(Example)
In the case of range 3600m3/h (1m3/s),
Minimum value (for 36000000 pulse/h):
3600 (m3/h) / 36000000 (pulses/h) = 0.001m3 = 0.1 L (liter)
Maximum value (for 3.6 pulse/h):
3600 (m3/h) / 3.6 (pulses/h) = 1000m3
Note 2: Example of pulse width setting range
The pulse width can be set within the range 0.3ms to 500ms in increments of 1ms. However,
the pulse width must be set to 40% or less of the period of pulse frequency at full scale
because of the setting range and count rate requirements.
If “0” is set, the pulse width automatically will be set to 40% of the period of pulse frequency
at full scale. (100ms max.)
(Example 1)
Range: 3600m3/h (1m3/s)
Count rate: 0.001m3
Since the pulse rate is
3600(m3/h) / 0.001(m3) =36000000 pulses/h =1000pulses/p,
the period of pulse frequency at full scale is 1ms.
Therefore, the pulse width can be set only to
1ms u 40% = 0.4ms
(Example 2)
Range: 3600m3/h (1m3/s)
Count rate: 1000m3
Since the pulse rate is
3600(m3/h) / 1000(m3) = 3.6 pulse/h (0.001 pps),
the period of pulse frequency at full scale is 1000000ms
Therefore, the pulse width = 1000000ms u 40% = 400000ms.
However, the maximum pulse width is 500ms,
the pulse width becomes 500ms.
(Example 3)
Range: 3600m3/h (1m3/s)
Count rate: 1m3
When pulse width is set to 0ms:
Since the pulse rate is
3600 (m3/h) / 1(m3) = 3600 pulse/h (1pps)
the period of pulse frequency at full scale is 1000ms.
Therefore, the pulse width = 1000ms u 40% = 400ms.
However, the pulse width that automatically set is 100ms max.
the pulse width becomes 100ms.
Not 3: Model LF62F has a function to start / stop or clear the totalizer. For details of operation, see
“Totalizer Operation” below.
㸫 116 㸫
6 F 8 A 0 9 2 8 Totalizer Operation
ƔOperation using the operation switches
You can start, stop or clear the totalizer as described below.
Switch operation
Display example
Description
386+6:
Mode change screen
&17
&17&75/
6(7
6(702'(
(6&
&17
6(7
&17&75/
)5'ڦ
When you push &17 in the measurement
mode, the screen moves to the totalizer
control screen.
&17
Totalized flow count (both directions)
appears automatically on this screen.
In addition, the switches
(6&
&/5
(
are shown.)
(6&
&/5
* ڦis displayed while the totalizer is in operation and
is displayed when it
is stopped.
* If an erroneous password is input when password is asked, or if it is a sealed
specification, &/5 is not displayed.
&17&75/
When you push , the totalizer starts
counting and
appears on the screen. In
addition,
changes
to ڦ.
)5'
ڦ
&/5
/RQJHU
2.
(6&
&17&75/
)5'
&/52."
2.
&17&75/
)5'
ڦ
(6&
&/5
When you push and hold &/5 longer, a
confirmation message appears.
12
Pushing 2. clears the totalizer and
pushing 12 cancels the clear operation.
Pushing (6& at the end returns you to the
measurement mode.
&/5
㸫 117 㸫
6 F 8 A 0 9 2 8 Note 1:Since the flow volume direction code is B (Bidirectional forward/reverse automatic selection),
xWhen you select forward/reverse multi-range,
forward direction totalized value (count value) is displayed for operation in the
forward direction range, and reverse direction totalized value (count value) is
displayed for operation in reverse direction range.
Note 2:If you reset the totalizer, flow counts for both directions will be cleared to zero at the same time.
Note 3:Non-volatile memory is used to store the totalizer count. Therefore, the value will be retained in
the memory even if power is turned off.
Note 4:In the case of sealed specification, start and stop switches can only be used.
(Clear operation cannot be used.)
ƔOperation using the digital input
Remote operations for the totalizer and pulse output can be performed using the digital input.
Set the digital input function for this purpose referring to 8.2.19 “Digital Input.”
Operation with digital input (Default setting: Control signal level is in H level)
Digital input functions
Totalizer
Start/Stop
Totalizer
Reset/Start
DI input
Totalizer and pulse output operation
L level
Stops the totalizer and pulse output.
H level
Pulse signal is outputted.
H level
Clears the count and stops the totalizer.
L level
Pulse signal is outputted.
You can reverse the DI control signal level. See 8.2.19 “Digital Input.”
x When H level (H LEVEL) is selected:
The operation with the signal level is the same as the default setting above.
x When L level (L LEVEL) is selected:
The operation with the signal level is the same as the one shown below.
Operation with digital input signal (Control signal level: L level)
Digital input functions
Totalizer
Start/Stop
Totalizer
Reset/Start
DI input
Totalizer and pulse output operation
L level
Pulse signal is outputted.
H level
Stops the totalizer and pulse output.
H level
Pulse signal is outputted.
L level
Clears the count and stops the totalizer.
㸫 118 㸫
6 F 8 A 0 9 2 8 10.3 Multi-range Function
Four types of multiple ranges shown below can be selected by setting the range type:
(1) Unidirectional flow, automatic selection of multiple ranges (4F-0R)
(2) Bidirectional flows, automatic selection of multiple ranges (2F-2R)
(3) Unidirectional flow, multiple ranges selected by external signal (EXT 2F-0R)
(4) Bidirectional flows, multiple ranges selected by external signal (EXT 2F-2R)
Proceed as follows to use the multi-range function.
Range setting
Refer to 8.2.9, “Span (Range)” to set as follows:
1. Select the Range type.
2. Set the span for Ranges 1 to 4.
3. Set the Hysteretic value.
DO/DI setting
Refer to 8.2.18, “Digital Output” and 8.2.19, “Digital Input” to set Digital Output 1
(DO1) and/or Digital Output 2 (DO2) to use them as Range outputs.
To use the multiple ranges selected by external signal, set the Digital Input (DI) as a
switch to select the ranges.
㸫 119 㸫
6 F 8 A 0 9 2 8 Output performance of multi-range functions
(1) Automatic selection of unidirectional flow multi-range with an internal signal (4F-0R)
z
When ranges 1 to 4 are used
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻞㻜㼙㻭
㻝㻜㻜
㻾㼍㼚㼓㼑㻠
㻾㼍㼚㼓㼑㻟
㻾㼍㼚㼓㼑㻞
㻾㼍㼚㼓㼑㻝
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟
㻔㻜㻌㼠㼛㻌㻞㻡㻑㻕
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻻㻺
z
㻻㻲㻲
㻻㻺
㻻㻲㻲
㻻㻲㻲
㻻㻺
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
When only ranges 1 and 2 are used (ranges 3 and 4 are set to zero)
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻝㻜㻜
㻞㻜㼙㻭
㻾㼍㼚㼓㼑㻝
㻾㼍㼚㼓㼑㻞
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟
㻔㻜㻌㼠㼛㻌㻞㻡㻑㻕
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻻㻺
㻻㻲㻲
㻻㻲㻲
࣭ Current output when fluid flows in the reverse direction is the value set for the output low limit (any one
of 2.4/3.2/4.0mA).
㸫 120 㸫
6 F 8 A 0 9 2 8 (2) Automatic selection of bidirectional flows multi-range with an internal signal (2F-2R)
z
When ranges 1 to 4 are used
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻝㻜㻜
㻾㼍㼚㼓㼑㻟
㻞㻜㼙㻭
㻾㼍㼚㼓㼑㻠
㻾㼍㼚㼓㼑㻝
㻾㼍㼚㼓㼑㻞
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
z
㻻㻺
㻻㻺
㻻㻲㻲
㻻㻲㻲
㻻㻲㻲
㻻㻺
When only ranges 1 and 3 are used (ranges 2 and 4 are set to zero)
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻝㻜㻜
㻞㻜㼙㻭
㻾㼍㼚㼓㼑㻝
㻾㼍㼚㼓㼑㻟
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻻㻲㻲
㻻㻲㻲
㻻㻺
㸫 121 㸫
6 F 8 A 0 9 2 8 Reverse to Forward direction change
ڦ
Forward to Reverse direction change
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻌㻌㻌㻌㻌㻌㻌㻌㽢㻝㻚㻞㻡
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻌㻌㻌㻌㻌㻌㻌㻌㽢㻝㻚㻞㻡
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻜
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻜
㻠㼙㻭
㻻㻺
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻻㻲㻲
㻲㼞㼛㼙㻌㼞㼑㼢㼑㼞㼟㼑㻌㼞㼍㼚㼓㼑㻌㼠㼛㻌㼒㼛㼞㼣㼍㼞㼐㻌㼞㼍㼚㼓㼑
㻻㻲㻲
㻻㻺
㻲㼞㼛㼙㻌㼒㼛㼞㼣㼍㼞㼐㻌㼞㼍㼚㼓㼑㻌㼠㼛㻌㼞㼑㼢㼑㼞㼟㼑㻌㼞㼍㼚㼓㼑
(3) Remote selection of unidirectional flows multi-range with an external signal (EXT 2F-0R)
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻝㻜㻜
㻞㻜㼙㻭
㻾㼍㼚㼓㼑㻞
㻾㼍㼚㼓㼑㻝
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻱㼤㼠㼑㼞㼚㼍㼘㻌㼟㼕㼓㼚㼍㼘
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻴㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻻㻺
㻸㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻻㻲㻲
x Current output when fluid flows in reverse direction is the output low limit setting
(any one of 2.4 / 3.2 / 4.0mA).
㸫 122 㸫
6 F 8 A 0 9 2 8 (4) Remote selection of bidirectional flows multi-range with an external signal (EXT 2F-2R)
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻝㻞㻡
㻝㻜㻜
㻞㻜㼙㻭
㻾㼍㼚㼓㼑㻝
㻾㼍㼚㼓㼑㻟
㻾㼍㼚㼓㼑㻠
㻾㼍㼚㼓㼑㻞
㻜
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻱㼤㼠㼑㼞㼚㼍㼘㻌㼟㼕㼓㼚㼍㼘
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻝
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻸㻌㼘㼑㼢㼑㼘
㻻㻲㻲
㻴㻌㼘㼑㼢㼑㼘
㻻㻺
㻴㻌㼘㼑㼢㼑㼘
㻻㻺
㻻㻲㻲
㻻㻺
Reverse to Forward direction change
㻸㻌㼘㼑㼢㼑㼘
㻻㻲㻲
ڦ
Forward to Reverse direction change
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻌㻌㻌㻌㻌㻌㻌㻌㽢㻝㻚㻞㻡
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻌㻌㻌㻌㻌㻌㻌㻌㽢㻝㻚㻞㻡
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻸㼛㼣㻌㼏㼡㼠㼛㼒㼒
㻜
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻜
㻠㼙㻭
㻻㻺
㻻㻲㻲
㻠㼙㻭
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻜
㻾㼍㼚㼓㼑㻌㼛㼡㼠㼜㼡㼠㻌㻺㼛㻚㻞
㻻㻺
㻻㻲㻲
㻲㼞㼛㼙㻌㼒㼛㼞㼣㼍㼞㼐㻌㼞㼍㼚㼓㼑㻌㼠㼛㻌㼞㼑㼢㼑㼞㼟㼑㻌㼞㼍㼚㼓㼑
㻲㼞㼛㼙㻌㼞㼑㼢㼑㼞㼟㼑㻌㼞㼍㼚㼓㼑㻌㼠㼛㻌㼒㼛㼞㼣㼍㼞㼐㻌㼞㼍㼚㼓㼑
㸫 123 㸫
6 F 8 A 0 9 2 8 10.4 Flow Rate High/Low, High-High/Low-Low Alarm Output
To use the flow rate high/low alarm or high-high/low-low alarm output, follow the procedure below.
High / Low alarm setting
Refer to 8.2.23, “Flow Rate High/Low Alarm and High-High/Low-Low
Alarm” and set the high alarm and/or low alarm to ON and set the limit value for
high and/or low alarm.
For alarms not used, set its setting to OFF.
High-High / Low-Low alarm setting
Refer to 8.2.23, “Flow Rate High/Low and High-High/Low-Low Alarm” and
set the high-high alarm and/or low-low alarm to ON and set the limit value for
high-high alarm and/or low-low alarm.
For alarms not used, set its setting to OFF.
DO setting
Refer to 8.2.18 "Digital Output" to set the Digital Output 1 (DO1) and
Digital Output 2 functions (DO2) for high alarm output/low output alarm or
high-high alarm output/ low-low alarm output.
In addition, set the alarm active status, either Normally Open or Normally Closed.
㸫 124 㸫
6 F 8 A 0 9 2 8 High and Low Limit Alarm Output Performance (Same as for High High/Low Low limit
Alarm Output)
x Single range performance
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻴㼕㼓㼔㻌㼘㼕㼙㼕㼠㻌㼢㼍㼘㼡㼑
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟㻞㻚㻡㻑
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㻭㼘㼍㼞㼙㻌㼛㼡㼠㼜㼡㼠
x Multi-range performance
In an example shown below, a low limit alarm is set for the Range 2 and a high limit alarm is
set for the Range 1.
㻻㼡㼠㼜㼡㼠㻔㻑㻕
㻾㼍㼚㼓㼑㻝
㻴㼕㼓㼔㻌㼘㼕㼙㼕㼠㻌㼢㼍㼘㼡㼑
㻴㼥㼟㼠㼑㼞㼑㼟㼕㼟
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㻭㼘㼍㼞㼙㻌㼛㼡㼠㼜㼡㼠
㻭㼘㼍㼞㼙㻌㼛㼡㼠㼜㼡㼠
When an alarm output condition occurs, Digital output 1 and 2 change to the output status set for an
alarm output condition. Alarm output contact is open while the converter is powered off.
㸫 125 㸫
6 F 8 A 0 9 2 8 10.5 Preset Count Function
When the totalizer count reaches the preset count value, the converter outputs a contact signal.
Proceed as follows to use the preset count function.
Totalizer setting
Refer to 10.2 “Totalizer and Pulse Output” to set necessary settings for
totalizer.
Preset count,
Preset count function setting
x Refer to 8.2.21, “Preset Count” to set the desired preset count.
x Refer to 8.2.22, “Preset Mode” to select the desired preset output function.
DO/DI setting
x Refer to 8.2.18, “Digital Output” and 8.2.19, “Digital Input” to set Digital
Output 1 (DO1) or Digital Output 2 (DO2) for use as preset count function
output.
In addition, if you want to reset the totalizer by an external signal, set the Digital
Input (DI) as totalizer Reset / Start signal. (Set DI FUNC to “CNT RS/ST.”)
Refer to 8.2.19, “Digital Input” to use the Digital Input (DI) and set the control
signal level in accordance with the external input signal.
When the operation switch on the converter is used to reset the totalizer, the digital
input function (DI) setting is not needed.
㸫 126 㸫
6 F 8 A 0 9 2 8 Preset count output performance
(1) The following is an example for totalizer flow counts output in which the totalizer is reset with an
external signal (when preset output status level hold mode is set (contact ON)).
㻴㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻯㼛㼡㼚㼠㼑㼞㻌㻾㼑㼟㼑㼠㻛㻿㼠㼍㼞㼠㻌㼟㼕㼓㼚㼍㼘
㻔㻰㻵㻌㼐㼑㼠㼑㼏㼠㼕㼢㼑㻌㼘㼑㼢㼑㼘㻌㼕㼟㻌㻴㻕
㻸㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻼㼞㼑㼟㼑㼠㻌㼜㼛㼕㼚㼠
㼀㼛㼠㼍㼘㼕㼦㼑㼞㻌㼒㼘㼛㼣㻌㼏㼛㼡㼚㼠㼟
㻜
㻯㼛㼡㼚㼠㼑㼞㻌㼞㼑㼟㼑㼠
㻯㼛㼡㼚㼠㼑㼞㻌㼟㼠㼍㼞㼠
㻯㼛㼡㼚㼠㼑㼞㻌㼞㼑㼟㼑㼠
㻻㻺
㻼㼞㼑㼟㼑㼠㻌㼜㼛㼕㼚㼠㻌㼛㼡㼠㼜㼡㼠
㻻㻲㻲
Input/Output signal time chart
When the Reset/Start signal is in H level (DI counter control signal level: H), the totalizer is reset to
zero and stops counting. When the Reset/Start signal goes to L level, the totalizer starts counting.
The preset point output goes ON when the totalizer counts reaches the preset point, and the output
goes OFF when the totalizer is reset to zero.
(2) The following is an example for totalizer flow counts output in which the totalizer is reset with an
external signal (when one-shot pulse output mode is set).
㻴㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻯㼛㼡㼚㼠㼑㼞㻌㻾㼑㼟㼑㼠㻛㻿㼠㼍㼞㼠㻌㼟㼕㼓㼚㼍㼘
㻔㻰㻵㻌㼐㼑㼠㼑㼏㼠㼕㼢㼑㻌㼘㼑㼢㼑㼘㻌㼕㼟㻌㻸㻕
㻸㻌㼘㼑㼢㼑㼘㻌㼕㼚㼜㼡㼠
㻼㼞㼑㼟㼑㼠㻌㼜㼛㼕㼚㼠
㼀㼛㼠㼍㼘㼕㼦㼑㼞㻌㼒㼘㼛㼣㻌㼏㼛㼡㼚㼠㼟
㻜
㻯㼛㼡㼚㼠㼑㼞㻌㼟㼠㼍㼞㼠
㻯㼛㼡㼚㼠㼑㼞㻌㼞㼑㼟㼑㼠
㻯㼛㼡㼚㼠㼑㼞㻌㼞㼑㼟㼑㼠
㻻㻺
㻡㻜㼙㼟
㻼㼞㼑㼟㼑㼠㻌㼜㼛㼕㼚㼠㻌㼛㼡㼠㼜㼡㼠
㻻㻲㻲
㻲㼛㼞㻌㼠㼔㼑㻌㼠㼛㼞㼍㼘㼕㼦㼑㼞㻌㼕㼟㻌㼞㼑㼟㼑㼠㻌㼠㼛㻌㼦㼑㼞㼛㻘㻌
㼠㼔㼑㻌㼜㼞㼑㼟㼑㼠㻌㼛㼡㼠㼜㼡㼠㻌㼓㼛㼑㼟㻌㻻㻲㻲㻚
㻲㼛㼞㻌㼕㼠㻌㼠㼍㼗㼑㼟㻌㼠㼔㼑㻌㼠㼕㼙㼑㻌㼟㼑㼠㻌㼜㼡㼘㼟㼑㻌㼣㼕㼐㼠㼔㻌
㼒㼞㼛㼙㻌㼠㼔㼑㻌㼛㼡㼠㼜㼡㼠㻌㼓㼛㼑㼟㻌㻻㻲㻲㻚
Input/Output signal time chart
* When the Reset/Start signal is in L level (DI counter control signal level: L), the totalizer is reset to
zero and stops counting. When the Reset/Start signal goes to H level, the totalizer starts counting.
The preset point output goes ON when the totalizer counts reaches the preset point. The output
goes OFF when the totalizer is reset to zero or when it takes the time set pulse width from the
output goes ON.
㸫 127 㸫
6 F 8 A 0 9 2 8 (3) The following is an example for one-shot pulse output.
Setting preset count:100
㻞㻜㻜
㼀㼛㼠㼍㼘㼕㼦㼑㼞㻌㼒㼘㼛㼣㻌㼏㼛㼡㼚㼠㼟
㻝㻜㻜
㻜
㻻㻺
㻼㼞㼑㼟㼑㼠㻌㼜㼛㼕㼚㼠㻌㼛㼡㼠㼜㼡㼠
㻻㻲㻲
㻲㼛㼞㻌㼕㼠㻌㼠㼍㼗㼑㼟㻌㼠㼔㼑㻌㼠㼕㼙㼑㻌㼟㼑㼠㻌㼜㼡㼘㼟㼑㻌㼣㼕㼐㼠㼔㻌
㼒㼞㼛㼙㻌㼠㼔㼑㻌㼛㼡㼠㼜㼡㼠㻌㼓㼛㼑㼟㻌㻻㻲㻲㻚
Input/Output signal time chart
Preset output goes ON when the count value exceeds the preset value of 100 and the preset output
goes OFF when its width reaches the set pulse width.
When the preset value exceeds 100, the preset value is changed to 200 (adding the preset count of 100
to the current preset value of 100).
Then, the preset output goes ON when the count value exceeds the preset value of 200, and the
preset output goes OFF when its width reaches the set pulse width.
When the preset value exceeds 200, the preset value is changed to 300 (adding the preset count of
100 to the current preset value of 200).
Note:
When the one-shot pulse output function is selected, if its pulse width is large compared
with the update period of the preset value. The output stays ON. To make sure to output as
one-shot pulse, set the preset value reach interval to be 2 signals or more of the pulse width
setting value.
Preset Pulse
Width
The Interval of that Totalizer
reaches the Preset Point
Example) Count rate:0.01 l
Flow verosity:10 l/s
Totalizer count up rate:1ms/COUNT
50ms
More than 100ms
Preset Count: more than 100
500ms
More than 1000ms
Preset Count: more than 1000
㸫 128 㸫
6 F 8 A 0 9 2 8 10.6 Remote Zero Adjustment
On-stream zero adjustment in a zero flow rate condition can be started with an external signal.
To do this, set DI as a zero adjustment start signal. See 8.2.19, “Digital I/O”
[Signal Input Timing]
㻴㻌㼘㼑㼢㼑㼘
㼆㼑㼞㼛㻌㼍㼐㼖㼡㼟㼠㼙㼑㼚㼠㻌
㼟㼠㼍㼞㼠㻌㼟㼕㼓㼚㼍㼘
㻸㻌㼘㼑㼢㼑㼘
䕦
㻝㻜㻌㼟㼑㼏㻚
㼆㼑㼞㼛㻌㼍㼐㼖㼡㼟㼠㼙㼑㼚㼠㻌㼟㼠㼍㼞㼠
㻞㻜㻌㼟㼑㼏㻚
The start signal must be set to H level first, then it must go to L level after the passage of more than
10 seconds but not more than 20 seconds, as shown above.
If the signal does not go to L level within this specified period, it will be ignored.
10.7 Remote Selection of Fixed Value Output
A user-specified 4-20 mA output and pulse output can be selected with a DI signal.
Proceed as follows to use this function:
Fixed-value setting
Set the fixed-value for current output and for pulse output. See 8.2.27, “Fixed-Value
Output.” Set the fixed-value output enable/disable status to “OFF.”
If the pulse output is not used, fixed-value setting for pulse output is not
needed.
DI function setting
Set DI to use as a fixed-value output control signal. See 8.2.19, “Digital Input.”
Control signal input conditions:
Control signal input level
4 –20 mA and pulse output
L level
Outputs the measured value.
H level
Outputs the fixed-value.
㸫 129 㸫
6 F 8 A 0 9 2 8 10.8 Converter Failure Alarm
If any one of the following errors occurs in a self-diagnosis sequence, the converter issues an alarm
using a contact output.
Ɣ6HOI-diagnosis errors
Self-diagnosis errors (LCD display)
Error items
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ROM error
5$0(5525
RAM error
3$5$0(7(5
)
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System parameter error
Excitation circuit not connected or open
Excitation current error, excitation circuit error
ADC error
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7
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Invalid totalizer counts
Note: A self-diagnosis error message appears on the Display 2 measured value screen. If this
happens, the measurement item specified on the Display 2 screen cannot be displayed
unless the error is removed. However, if OFF is set to 8.2.25, “Self Diagnosis
Function Setting,” an error does not appears even if an error occurs.
If you want to use a converter alarm output, set Digital Output 1 (DO1) or Digital Output 2
(DO2) for converter alarm output (CONV ALM) following 8.2.18, “Digital Output.”
In addition, set the alarm output condition to normally open (NormOPEN) or normally
closed (NormCLOSE) status.
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NormOpen;
NormClose;
In case an error occurs, contact is closed.
In case an error occurs, contact is open.
Note: Alarm output contact is open when converter power is off.
㸫 130 㸫
6 F 8 A 0 9 2 8 10.9 Multiple range high/low limit alarm function
The procedure to use multiple range high/low limit alarm is shown below.
Range setting
࣭Set the range in accordance with 8.2.9 Span (range) in the following order.
1. Set the range type to “unidirectional flow, multiple ranges selected by
external signal”.
2. Set Range 1 and Range 2 respectively.
DO setting (Note 1)
࣭Set digital output 1 and 2 (DO1, DO2) function to multiple range high limit
alarm output and multiple range low limit alarm output respectively in
accordance with 8.2.18 Digital I/O.
Also set the alarm output state to either of normally open or normally close.
DI setting
࣭Set digital input (DI) function to RANGE SW in accordance with 8.2.19
Digital I/O.
High/Low limit
alarm value setting
࣭Set high limit alarm and low limit alarm to ON and set alarm value to high
and low alarms respectively in accordancewith 8.2.23 Flow Rate High, Low,
High-High and Low-Low limit Alarm Setting.
Set the alarm not to use to OFF.
High High/Low Low limit
alarm value setting
࣭Set high-high alarm and low-low alarm to ON and set alarm value to them
respectively in accordance with 8.2.23 Flow Rate High, Low, High-High
and Low-Low limit Alarm Setting.
Set the alarm not to use to OFF.
㸫 131 㸫
6 F 8 A 0 9 2 8 Multiple range high/low limit alarm output
㻲㼘㼛㼣㻌㼞㼍㼠㼑
㻴㼕㼓㼔㻌㼘㼕㼙㼕㼠
㻸㼛㼣㻌㼘㼕㼙㼕㼠
㻴㼕㼓㼔㻙㼔㼕㼓㼔㻌㼘㼕㼙㼕㼠
㻸㼛㼣㻙㼘㼛㼣㻌㼘㼕㼙㼕㼠
㼀㼕㼙㼑
㻰㻻㻝㻌㼙㼡㼘㼠㼕㼜㼘㼑㻌㼞㼍㼚㼓㼑㻌
㼔㼕㼓㼔㻌㼘㼕㼙㼕㼠㻌㼍㼘㼍㼞㼙㻌㼛㼡㼠㼜㼡㼠
㻰㻻㻞㻌㼙㼡㼘㼠㼕㼜㼘㼑㻌㼞㼍㼚㼓㼑㻌
㼘㼛㼣㻌㼘㼕㼙㼕㼠㻌㼍㼘㼍㼞㼙㻌㼛㼡㼠㼜㼡㼠
㻻㻺
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㻻㻺
㻻㻺
㻻㻺
㻻㻺
㻸㼍㼞㼓㼑㻌㼞㼍㼚㼓㼑㻌㻔㻾㼍㼚㼓㼑㻝㻕
Note 1: Range changes to Small range when range select signal is H level, and to Large range in L
level.
Note 2: High-high/low-low limit alarm is activated when Small range is selected. High/low limit
alarm is not output to display.
High/low limit alarm is activated when Large range is selected. High-high/low-low
limit alarm is not output to display.
Note 3: Alarm output state is the same state to which digital output 1 or 2 is set. When
converter power is OFF, contact output is OPEN.
Note 4: Each alarm set value % is the percent set to the first range.
Note 5: Hysteresis of each alarm is 2.5 % for the first range.
Example
When Large range and Small range are set as below:
Large range (Range 1):
1000 m3/h
Small range (Range 2):
500 m3/h
And you want to set alarm values as below:
Large range alarm set values
High limit value:
800 m3/h
Low limit value:
600 m3/h
Small range alarm set values
High-high limit value: 400 m3/h
Low-low limit value: 300 m3/h
Set the alarm set values as below:
High limit value:
80 % (800 m3/hy1000 m3/h=0.8)
Low limit value:
60 % (600 m3/hy1000 m3/h=0.6)
High-high limit value: 40 % (400 m3/hy1000 m3/h=0.4)
Low-low limit value: 30 % (300 m3/hy1000 m3/h=0.3)
㸫 132 㸫
See Note4.
See Note4
6 F 8 A 0 9 2 8 10.10 Custom unit function
(1) Display of flow rate
The procedure to display flow rate by the custom unit is shown below.
Example : In the case of custom unit [dL(deciliter)/min].
Custom coefficient setting
࣭Set the custom coefficient in accordance with 8.2.7 “Custom Coefficient
Setting”. Set the conversion coefficient from m3/min unit to the custom
coefficient. In the case of dL/min, set 10000 that is the conversion coefficient
of dL from m3.
Custom unit setting
࣭Set the custom unit in accordance with 8.2.8 “Custom Unit Setting”. Set the
character string of unit to the custom unit. In the case of this example, set ‘d’
‘L’ ‘/’ ‘m’ ‘i’ ‘n’. The rest of 1 character is blank space because the maximum
character number of the custom unit is 7.
Display setting
࣭Set the display item to CUSTOM in accordance with 8.2.6 “Display Setting”.
Measurement value
confirmation
࣭Return to the measurement mode and confirm the display value. Identification
character “” showing the custom unit is displayed at the head of custom unit
in the measurement mode .
㸫 133 㸫
6 F 8 A 0 9 2 8 (2) Span setting
Setting of 8.2.7 “Custom Coefficient Setting” and 8.2.8 “Custom Unit Setting” is applied to the
custom coefficient and unit same as (1)Display of flow rate.
Example : In the case of custom unit [dL(deciliter)/min].
Custom coefficient setting
࣭Set the custom coefficient in accordance with 8.2.7 “Custom Coefficient
Setting”. Set the conversion coefficient from m3/min unit to the custom
coefficient. In the case of dL/min, set 10000 that is the conversion coefficient
of dL from m3.
Custom unit setting
࣭Set the custom unit in accordance with 8.2.8 “Custom Unit Setting”. Set the
character string of unit to the custom unit. In the case of this example, set ‘d’
‘L’ ‘/’ ‘m’ ‘i’ ‘n’. The rest of 1 character is blank space because the maximum
character number of the custom unit is 7.
Span setting
࣭Select the custom unit dL/min to the span unit in accordance with 8.2.9 “Span
(Range)”. When custom unit is selected, the new span value will be displayed
automatically based on the custom coefficient and custom unit.
㸫 134 㸫
6 F 8 A 0 9 2 8 Note1 : Even if the custom unit is selected, the current output does not change unless the
span value is changed.
Description
Display example
5
PPLQ
In the case of span value = 2.00000 m3/min
5
G/PLQ
5
G/PLQ
When custom unit dL/min is selected, the span value is
displayed 20000 automatically based on the custom
coefficient.
Identification character “” showing the custom unit is
displayed at the head of custom unit.
Even if setting is fixed in this state, the current output
does not change.
When the span value was changed after the custom
unit selection, the current output changes.
The span value is changed into 10000 from 20000 in
display example. The percent value doubles when
setting is fixed in this state, and the current output
changes.
Note2 : Setting range of the span value depends on the custom coefficient.
If the setting high limit of the span value is 1.18 m3/min,
the setting high limit is 11800 dL/min by the custom unit.
Note3 : In the case of the multiple ranges, the custom unit is applied to Range4 from Range2.
㸫 135 㸫
6 F 8 A 0 9 2 8 11. Communications Function㻌
The LF62 Series Electromagnetic Flowmeter uses the HART*1 protocol to transmit digital signals
over the 4-20mA output line. The BF100 configurator is used to communicate with the LF62 using the
HART protocol. Through remote operation, you can check or change the various parameters, calibrate
the flowmeter or monitor the measurement value.
For detailed operation and specifications of configurator, refer to the instruction manual of the BF100
configurator for sensor with communication function.
*1 HART protocol:
HART, Highway Addressable Remote Transducer, is a communication protocol for industrial
sensors recommended by HCF (HART Communication Foundation).
By adding an optional PROFIBUS or Modbus communication board to the converter, the converter can
be used as a PROFIBUS-PA or Modbus slave device to communicate digital data with PROFIBUS or
Modbus master device .
For details of PROFIBUS or Modbus communication, refer to the instruction manual of PROFIBUS or
Modbus Communication for LF62.
11.1 Connection to the Configurator
Connect the input cable of configurator across the load resistance connected from the current output
terminals (+ and ). Since the cable end is a pair of clips, use a junction terminal or terminal block to
connect with the load resistance. To connect the configurator directly to the flowmeter, use the terminals
+ and . The configurator input cable has no polarity.
See Figures 11.1 and 11.2 for connection examples.
4 to 20 mAdc
(communication line ) ĺ
Load resistance
Terminal block or
junction terminal
BF 100
Configurator
Figure 11.1 Connections to the Current Output Line
㸫 136 㸫
6 F 8 A 0 9 2 8 㻯㼛㼚㼢㼑㼞㼠㼑㼞㻌㼠㼑㼞㼙㼕㼚㼍㼘㻌㼎㼘㼛㼏㼗
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)*
/
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Figure 11.2
Connections to the Converter Unit
㸫 137 㸫
6 F 8 A 0 9 2 8 11.2 Notes on Communications
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(1) Load resistance: 240 to 750 : (including the communications line resistance)
(2) Load capacitance: 0.25PF maximum (including the communications line capacitance)
(3) Load inductance:4mH maximum (including the communications line inductance)
(The maximum cable length is approx. 2 km when CVV-S 1.25 mm2 cable is used
under standard installation conditions.)
Ɣ Connection method
Use a shielded cable (such as CVV-S) for wiring.
Ɣ,QWHUIHUHQFHRQ-20mA current signal
To communicate with the flowmeter, a digital signal with amplitude of 0.4 to 0.8 V (in the
FDVH RI ȍ ORDG UHVLVWDQFH ZLWK IUHTXHQF\ RI WR .2 kHz is superimposed on the
4-20mA current signal. If a high-response receiving instrument is connected to the current
output line, the superimposed communications signal may interfere with the instrument. To
prevent this interference, as shown in Figure 11.3, it is recommended that you put a low-pass
filter with a time constant of about 100 ms into the input circuit of the receiving instrument.
Current output line
㸩
R
Load resistance
C
㸫
Converter
Filter
Receiving instrument
Figure 11.3 Example of Filter Connection
㸫 138 㸫
6 F 8 A 0 9 2 8 12. Self Diagnosis and Alarms
12.1 Self-Diagnosis
The converter has a self-diagnosis function to detect errors, such as setting error, I/O error or converter
hardware failure, and shows the resulting error or alarm messages on Display 2 of the screen or on the
configurator through communications.
The diagnosis messages and their corrective actions are described below.
ƔSetting error
If you try to set a value or a measuring unit outside of the specified range in the setting mode,
one of the following error messages appears to prevent erroneous setting.
LCD display
+,*+29(5
63(&
/2:29(5
6
63(&
+,*+
29(5
&
&175$7(
/2:29(5
&
&175$7(
08/7,51*
(5525
Description
Corrective action
Setting value exceeds the allowable high limit.
Setting value goes below the allowable low limit.
Count rate exceeds the allowable high limit.
Try to set a value within the
specified range.
Count rate goes below the allowable low limit.
Span is not appropriate for multi-range configuration.
㸫 139 㸫
Try to set the span as specified.
6 F 8 A 0 9 2 8 Ɣ+LJKORZDODUPKLJK-high/low-low alarm, empty pipe alarm
One of the following messages appears if the flow rate reading goes out of the set range or an
empty alarm is generated.
If the high or low limit alarm ON/OFF status is set to OFF, its alarm function (high or low) is
disabled. See 8.2, “Check/Change of Parameters.”
LCD display
+,*+$/$50
+,*++
+,*+
$/$50
/2:$/$50
/2:/2:
$
$/$50
(037<
$/$50
29(5
Description
Corrective action
If high alarm is set, the flow rate reading has
Take necessary actions for the
exceeded the set value.
system.
If high-high alarm is set, the flow rate reading
has exceeded the set value.
If low alarm is set, the flow rate reading is
below the set value.
If low-low alarm is set, the flow rate reading is
below the set value.
Indicates that the detector pipe is empty.
Fill the pipe with fluid.
The measured value is over 125%.
The setting range for the
The measure value is below 125%.
measurement value is too
narrow or the volume of fluid is
too large. Check whether the
81'(5
setting is correct or if there is
any problem in the process
signal.
㸫 140 㸫
6 F 8 A 0 9 2 8 Ɣ&RQYHUWHUGLDJQRVLs error
The converter checks the internal system when power is turned on and generates an error if
abnormality is found.
If multiple errors are found, their messages will be displayed cyclically.
Diagnosis items concerning the excitation circuit are detected using the internal ADC circuit.
Thus, if the ADC error of No.6 occurs, No. 4 excitation cable and No. 5 excitation circuit
errors cannot be detected correctly. Further, this entire diagnosis and display system is based
on the CPU in the flowmeter. Therefore, if the CPU error occurs, normal diagnosis and error
display cannot be obtained.
NO.
1
2
3
4
5
LCD display
520(5525
5$
$0(5525
3$5$0(7(5
)
)$,/85(
(;&&85
23(1
(;&
&&85
(
(5525
6
$'&(5525
㸵
,19$/,'
727$/
Description
ROM error
RAM error
System parameter error in the memory
Excitation cables are not connected.
Corrective action
Internal
components
or
printed-circuit board must be
repaired or replaced.
Contact Toshiba’s salesperson in
charge or distributor in your area.
Connect the excitation cables
correctly.
Internal
components
or
printed-circuit board must be
repaired or replaced.
Contact Toshiba’s salesperson in
ADC error
charge or distributor in your area.
Totalizer data in the memory was destroyed The error message disappears if
due to external noise.
you clear the totalizer count.
(No message appears if data display with
volume unit is not used.)
An error occurred in the excitation circuit.
Note 1:
No.1 to No.3 diagnosis items are executed only at the time of power-up. The flowmeter does
not start measurement if any one of these errors is detected.
Note 2:
No.4 to No.6 diagnosis items may not be detected even if the error results in incorrect
flowmeter accuracy, due to characteristic differences in components used to detect these
errors.
Note 3: CPU error cannot be detected by the diagnosis system. If the CPU stops, the watchdog timer
resets the internal circuits and the flowmeter starts again from the initial power-un condition.
Depending on the CPU condition, the flowmeter may not indicate and output correct data.
Note 4: Because of noise and other factors, the converter may temporarily display incorrect diagnosis
results. In this case, turn off the power for 10 minutes and check if the error message is still
present.
㸫 141 㸫
6 F 8 A 0 9 2 8 12.2 Output Status for Errors and Alarms
Error indication
520(5525
(Note 1)
5$0(5525
Measured value
Current output
Totalization
indication
(4-20mA)
pulse output
㸫
(Note 3)
Stopped
㸫
(Note 3)
Stopped
Remarks
After power-up,
no measurement starts.
After power-up,
no measurement starts.
3$5$0(7(5
)$,/85(
Zero
(Note 3)
Stopped
Zero
(Note 3)
Stopped
Zero
(Note 3)
Stopped
Zero
(Note 3)
Stopped
Measured data
Measured data
Measured data
ʊʊʊʊʊʊʊ
(Note 2)
(;&&85
23(1
(;&&85
(5525
$'&(5525
,19$/,'
727$/
Still water zero adjustment
cannot be performed.
Still water zero adjustment
cannot be performed.
Still water zero adjustment
cannot be performed.
The error message
disappears if you clear
(reset) the totalizer count.
+,*+$/$50
Measured data
Measured data
Measured data
ʊʊʊʊʊʊʊ
/2:$/$50
Measured data
Measured data
Measured data
ʊʊʊʊʊʊʊ
Measured data
Measured data
Measured data
ʊʊʊʊʊʊʊ
Measured data
Measured data
Measured data
ʊʊʊʊʊʊʊ
+,*++,*+
$/$50
/2:/2:
$/$50
Note 1: The display and output may not be correct depending on the nature of the ROM error.
Note 2: If a parameter failure relating to the current output occurs, the current output may not become
the value as specified by the setting when an alarm occurs.
Note 3: The current output value used in case an alarm occurs will be output. For setting method, see
8.2.16, “420mA Alarm Output Setting.”
㸫 142 㸫
6 F 8 A 0 9 2 8 13. Maintenance and Troubleshooting
㼃㻭㻾㻺㻵㻺㻳
Do not disconnect while circuit is live unless location is known to be nonhazardous.
Live part of electric circuit or a high temperature department can cause explosion.
DON’T
Do not modify or disassemble the enclosure.
Strength degradation and defects of enclosure can cause explosion.
DON’T
Do not use parts of other products.
Protective performance degradation for hazardous location can cause explosion.
DON’T
Do not live circuits While assembly of all components is not over.
Protective performance degradation for hazardous location can cause explosion.
DON’T
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
3S8A2676,3S8A22677 (Refer to Appendix 2.).
Unsuitable conduit connections for hazardous location can cause explosion.
DO
CAUTION
Do not conduct wiring work when
power is applied.
DON’T
Wiring while power is
applied can cause electric
shock.
Do not touch the LF620F main body
when high temperature fluid is being
measured.
The fluid raises the main
body temperature and can
cause burns.
DON’T
㸫 143 㸫
6 F 8 A 0 9 2 8 13.1 Maintenance
Calibration
The converter for electromagnetic flowmeter: LF62 has a built-in internal calibration circuit that can be used to
check the zero and span of the converter for the purpose of instrumentation maintenance, periodic
inspection or re-verification of instrument calibration parameters. See Chapter 9, “Calibration”
Fuse
Fuse is in white fuse holder between circuit boards. Top must be removed to access fuse.
Recommended replacement period: every 3 years (depending on the environmental conditions, the
fuse may need replacement ahead of the recommended period)Type of fuse used:
Glass tube
fuse 1 piece
Rating:
࣭1A, 250 V for 100 to 240 VAC and 110VDC power supply
࣭2A, 250V for 24VDC power supply
Dimensions:
Diameter 5.2 mm × 20 mm
Melting time characteristic:
࣭Time Lag Fuses for 100 to 240VAC or 110VDC
࣭Normal blow type for 24 VDC
Note: Use a fuse that complies with the Electrical Appliance and Material Safety Law.
Fuse checking/replacement
(1) Loosen all four screws and remove the cover.
(2) Loosen the screws and remove the cover panel. (Be careful not to misplace the screws.)
Cover Panel
(3) Loosen all four screws and lift the LCD board. The back of the LCD board is connected to the signal
board through a flexible flat cable. Be careful not to cut the cable or disconnect the two circuit boards.
㸫 144 㸫
6 F 8 A 0 9 2 8 LCD Board
Back of the LCD Board
Flexible
Fl
ibl Flat
Fl t Cable
C bl
Signal Board
(4) Pull the fuse holder upwards and check the fuse condition.
Fuse holder
㸿
Pull out
Fuse
Enlarged cross section of A
Please use a multimeter to test the conductivity of the fuse.
Check/Replacement of the display unit
When characters displayed on the LCD display become thin or blots come out, please adjust the setting of
LCD's display density. If the display is still not improved, the display unit comes to the end of its life.
㸫 145 㸫
6 F 8 A 0 9 2 8 Please replace the display unit with a new one. In order to use the display unit stably for a long time, it is
preferable to replace it early. For inspection and replacement, please contact your nearest Toshiba
representative.
Power supply unit (also used for excitation board)
Electronic components deteriorate faster when the ambient temperature is high. The life of the power
supply unit in the converter is 9 to 10 years if the ambient temperature is 40°C, and 5 to 6 years if it
is 50° C. To extend the life of the flowmeter, we recommend you replace the power supply unit early.
Contact your nearest Toshiba representative for a flowmeter inspection or unit replacement.
Product disposal
The main body or parts of the converter for electromagnetic flowmeter l: LF62F must be disposed of, according
to the rules and regulations of your local government.
Especially if you dispose of electrolytic capacitors to replace parts, have it done by an agency which
is licensed to handle industry waste materials.
Operative life
The operative life of this flowmeter is 10 years from the date of shipment.
The life of the flowmeter differs depending on the environmental conditions and the way it was used. To
extend the life of the flowmeter, inspect the flowmeter periodically and clean or replace components if
necessary.
㸫 146 㸫
6 F 8 A 0 9 2 8 13.2 Troubleshooting
If a problem occurs while using the flowmeter, you may find the cause of the problem by a simple check.
Please follow the flowmeter before you contact a serviceperson.
13.2.1 Flow rate is not indicated.
㻿㼀㻭㻾㼀
㻵㼟㻌㼠㼔㼑㻌㼑㼞㼞㼛㼞㻌㼙㼑㼟㼟㼍㼓㼑㻌
㼎㼑㼕㼚㼓㻌㼐㼕㼟㼜㼘㼍㼥㼑㼐㻫
㼅㼑㼟
㻺㼛
㻭㼞㼑㻌㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼕㼑㼟㻌
㼏㼛㼞㼞㼑㼏㼠㻌㼒㼛㼞㻌㼑㼍㼏㼔㻌㼐㼑㼢㼕㼏㼑㻫
㻺㼛
㼀㼡㼞㼚㻌㼛㼒㼒㻌㼠㼔㼑㻌㼜㼛㼣㼑㼞㻚㻌
㼃㼍㼕㼠㻌㼒㼛㼞㻌㻝㻜㻌㼙㼕㼚㼡㼠㼑㼟㻌
㼎㼑㼒㼛㼞㼑㻌㼠㼡㼞㼚㼕㼚㼓㻌㼠㼔㼑㻌
㼐㼑㼢㼕㼏㼑㻌㼛㼚㻌㼍㼓㼍㼕㼚㻚㻌㻵㼚㻌
㼏㼍㼟㼑㻌㼚㼛㼠㼔㼕㼚㼓㻌
㼏㼔㼍㼚㼓㼑㼟㻘㻌㼏㼛㼚㼠㼍㼏㼠㻌
㼥㼛㼡㼞㻌㼚㼑㼍㼞㼑㼟㼠㻌㼀㼛㼟㼔㼕㼎㼍㻌
㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻚
㼁㼟㼑㻌㼠㼔㼑㻌㼏㼛㼞㼞㼑㼏㼠㻌
㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌㼒㼛㼞㻌
㼑㼍㼏㼔㻌㼐㼑㼢㼕㼏㼑㻚
㼅㼑㼟
㻭㼞㼑㻌㼜㼛㼣㼑㼞㻌㼍㼚㼐㻌㻵㻛㻻㻌
㼏㼍㼎㼘㼑㼟㻌㼕㼚㼟㼠㼍㼘㼘㼑㼐㻌
㼏㼛㼞㼞㼑㼏㼠㼘㼥㻫
㻺㼛
㻵㼚㼟㼠㼍㼘㼘㻌㼠㼔㼑㻌㼏㼍㼎㼘㼑㼟㻌
㼏㼛㼞㼞㼑㼏㼠㼘㼥㻚㻌㻾㼑㼒㼑㼞㻌㼠㼛㻌
㻯㼍㼔㼜㼠㼑㼞㻡㻘㻌䇾㼃㼕㼞㼕㼚㼓䇿㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼒㼡㼟㼑㻌㼚㼛㼠㻌㼎㼡㼞㼚㼠㻫
㼅㼑㼟
㻾㼑㼜㼘㼍㼏㼑㻌㼠㼔㼑㻌㼒㼡㼟㼑㻌
㼣㼕㼠㼔㻌㼍㻌㼚㼑㼣㻌㼛㼚㼑㻚
㻺㼛
㻵㼟㻌㼠㼔㼑㻌㼒㼘㼛㼣㻌㼞㼍㼚㼓㼑㻌
㼏㼛㼞㼞㼑㼏㼠㼘㼥㻌㼟㼑㼠㻫
㻺㼛
㻿㼑㼠㻌㼏㼛㼞㼞㼑㼏㼠㼘㼥㻚㻌㻾㼑㼒㼑㼞㻌
㼠㼛㻌㻯㼔㼍㼜㼠㼑㼞㻤㻘㻌
䇾㻯㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌
㻼㼍㼞㼍㼙㼑㼠㼑㼞㻌㻿㼑㼠㼠㼕㼚㼓䇿㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼒㼘㼛㼣㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚㻌
㼙㼍㼠㼏㼔㻌㼣㼕㼠㼔㻌㼠㼔㼑㻌㼍㼞㼞㼛㼣㻌
㼙㼍㼞㼗㻌㼛㼚㻌㼠㼔㼑㻌㼐㼑㼠㼑㼏㼠㼛㼞㻫
㻺㼛
㻵㼚㼟㼠㼍㼘㼘㻌㼠㼔㼑㻌㼐㼑㼠㼑㼏㼠㼛㼞㻌
㼏㼛㼞㼞㼑㼏㼠㼘㼥㻚㻌㻾㼑㼒㼑㼞㻌㼠㼛㻌
㻯㼔㼍㼜㼠㼑㼞㻠㻘㻌䇾㻹㼛㼡㼚㼠㼕㼚㼓㻌
㻼㼞㼛㼏㼑㼐㼡㼞㼑䇿㻚
㼅㼑㼟
㻯㼛㼚㼠㼍㼏㼠㻌㼥㼛㼡㼞㻌㼚㼑㼍㼞㼑㼟㼠㻌
㼀㼛㼟㼔㼕㼎㼍㻌㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻚
Note
When meter size is under 80mm (3inch),
measurement value of 'Mgl/s' unit is not
displayed because value is too small.
㸫 147 㸫
6 F 8 A 0 9 2 8 13.2.2 Flow rate indication is not correct.
㻿㼀㻭㻾㼀
㻵㼟㻌㼠㼔㼑㻌㼒㼘㼛㼣㻌㼞㼍㼚㼓㼑㻌
㼏㼛㼞㼞㼑㼏㼠㼘㼥㻌㼟㼑㼠㻫
㻺㼛
㻿㼑㼠㻌㼏㼛㼞㼞㼑㼏㼠㼘㼥㻚㻌㻾㼑㼒㼑㼞㻌
㼠㼛㻌㻯㼔㼍㼜㼠㼑㼞㻤㻘㻌
䇾㻯㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌
㻼㼍㼞㼍㼙㼑㼠㼑㼞㻌㻿㼑㼠㼠㼕㼚㼓䇿㻚
㼅㼑㼟
㻵㼟㻌㼦㼑㼞㼛㻌㼜㼛㼕㼚㼠㻌㼏㼛㼞㼞㼑㼏㼠㼘㼥㻌
㼟㼑㼠㻫
㻺㼛
㻼㼑㼞㼒㼛㼞㼙㻌㼠㼔㼑㻌㼦㼑㼞㼛㻌
㼍㼐㼖㼡㼟㼠㼙㼑㼚㼠㻚㻌㻾㼑㼒㼑㼞㻌㼠㼛㻌
㻯㼔㼍㼜㼠㼑㼞㻢㻘㻌
䇾㻻㼜㼑㼞㼍㼠㼕㼛㼚䇿㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼑㼤㼏㼕㼠㼍㼠㼕㼛㼚㻌㼏㼡㼞㼞㼑㼚㼠㻌
㼢㼍㼘㼡㼑㻌㼍㼟㻌㼟㼠㼍㼠㼑㼐㻌㼛㼚㻌㼠㼔㼑㻌
㼒㼘㼛㼣㻌㼐㼕㼞㼑㼏㼠㼕㼛㼚㻌㼠㼍㼓㻫
㻺㼛
㻿㼑㼠㻌㼏㼛㼞㼞㼑㼏㼠㼘㼥㻚㻌㻾㼑㼒㼑㼞㻌
㼠㼛㻌㻯㼔㼍㼜㼠㼑㼞㻤㻘㻌
䇾㻯㼛㼚㼒㼕㼓㼡㼞㼍㼠㼕㼛㼚㻌
㻼㼍㼞㼍㼙㼑㼠㼑㼞㻌㻿㼑㼠㼠㼕㼚㼓䇿㻚
㼅㼑㼟
㻯㼘㼑㼍㼚㻌㼠㼔㼑㻌㼕㼚㼟㼕㼐㼑㻌㼣㼍㼘㼘㻌
㼛㼒㻌㼠㼔㼑㻌㼐㼑㼠㼑㼏㼠㼛㼞㻌㼜㼕㼜㼑㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼕㼚㼟㼕㼐㼑㻌㼣㼍㼘㼘㻌㼛㼒㻌㼠㼔㼑㻌
㼐㼑㼠㼑㼏㼠㼛㼞㻌㼜㼕㼜㼑㻌
㼏㼛㼚㼠㼍㼙㼕㼚㼍㼠㼑㼐㻫
㻺㼛
㻵㼟㻌㼠㼔㼑㻌㼛㼡㼠㼜㼡㼠㻌㼘㼛㼍㼐㻌
㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㼍㼟㻌㼟㼜㼑㼏㼕㼒㼕㼑㼐㻫
㻺㼛
㼅㼑㼟
㻭㼞㼑㻌㼠㼔㼑㼞㼑㻌㼠㼣㼛㻌㼘㼛㼍㼐㻌
㼞㼑㼟㼕㼟㼠㼛㼞㼟㻌㼏㼛㼚㼚㼑㼏㼠㼑㼐㻌㼠㼛㻌
㼠㼔㼑㻌㼛㼡㼠㼜㼡㼠㻌㼕㼚㻌㼜㼍㼞㼍㼘㼘㼑㼘㻫
㼅㼑㼟
㻰㼑㼟㼕㼓㼚㻌㼠㼔㼑㻌㼛㼡㼠㼜㼡㼠㻌
㼏㼕㼞㼏㼡㼕㼠㻌㼟㼛㻌㼠㼔㼍㼠㻌㼠㼔㼑㻌
㼛㼡㼠㼜㼡㼠㻌㼘㼛㼍㼐㻌
㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻌㼕㼟㻌㼘㼑㼟㼟㻌
㼠㼔㼍㼚㻌㻣㻡㻜㻌㼛㼔㼙㻚
㻯㼛㼚㼚㼑㼏㼠㻌㼠㼔㼑㻌㼠㼣㼛㻌㼘㼛㼍㼐㻌
㼞㼑㼟㼕㼟㼠㼛㼞㼟㻌㼕㼚㻌㼟㼑㼞㼕㼑㼟㻘㻌㼕㼒㻌
㼚㼑㼏㼑㼟㼟㼍㼞㼥㻚
㻺㼛
㻵㼟㻌㼍㼏㼏㼡㼞㼍㼏㼥㻌㼏㼍㼘㼏㼡㼘㼍㼠㼑㼐㻌
㼍㼟㻌㼒㼛㼘㼘㼛㼣㼟㻫
㻔㻹㼑㼍㼟㼡㼞㼑㼐㻌㼒㼘㼛㼣㻌㼞㼍㼠㼑㻕㻙㻔㻭㼏㼠㼡㼍㼘㻌㼒㼘㼛㼣㻌㼞㼍㼠㼑㻕
㽢㻝㻜㻜㻑
㻔㻭㼏㼠㼡㼍㼘㻌㼒㼘㼛㼣㻌㼞㼍㼠㼑㻕
㼅㼑㼟
㻯㼛㼚㼠㼍㼏㼠㻌㼥㼛㼡㼞㻌㼚㼑㼍㼞㼑㼟㼠㻌
㼀㼛㼟㼔㼕㼎㼍㻌㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻚
㸫 148 㸫
㻺㼛 㻯㼍㼘㼏㼡㼘㼍㼠㼑㻌㼍㼟㻌㼟㼔㼛㼣㼚㻌
㼛㼚㻌㼠㼔㼑㻌㼘㼑㼒㼠㻚
6 F 8 A 0 9 2 8 13.2.3 Flow rate indication is not stable.
㻿㼀㻭㻾㼀
㻵㼟㻌㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌㼢㼛㼘㼠㼍㼓㼑㻌
㼣㼕㼠㼔㼕㼚㻌㼠㼔㼑㻌㼟㼜㼑㼏㼕㼒㼕㼑㼐㻌
㼞㼍㼚㼓㼑㻫
㼁㼟㼑㻌㼍㻌㼜㼛㼣㼑㼞㻌㼟㼡㼜㼜㼘㼥㻌
㼣㼕㼠㼔㼕㼚㻌㼠㼔㼑㻌㼟㼜㼑㼏㼕㼒㼕㼑㼐㻌
㼞㼍㼚㼓㼑㻚
㻺㼛
㼅㼑㼟
㻭㼞㼑㻌㼏㼍㼎㼘㼑㼟㻌㼟㼑㼏㼡㼞㼑㼘㼥㻌
㼏㼛㼚㼚㼑㼏㼠㼑㼐㻫
㻺㼛
㻯㼛㼚㼚㼑㼏㼠㻌㼑㼍㼏㼔㻌㼏㼍㼎㼘㼑㻌
㼟㼑㼏㼡㼞㼑㼘㼥㻌㼠㼛㻌㼠㼔㼑㻌
㼠㼑㼞㼙㼕㼚㼍㼘㻌㼎㼛㼍㼞㼐㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼒㼘㼛㼣㼙㼑㼠㼑㼞㻌
㼓㼞㼛㼡㼚㼐㼑㼐㻌㼣㼕㼠㼔㻌㻝㻜㻜㻌㼛㼔㼙㻌
㼛㼞㻌㼘㼑㼟㼟㻌㼓㼞㼛㼡㼚㼐㻌
㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻫
㻺㼛
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼐㼑㼠㼑㼏㼠㼛㼞㻌㼜㼕㼜㼑㻌㼒㼕㼘㼘㼑㼐㻌 㻺㼛
㼣㼕㼠㼔㻌㼒㼘㼡㼕㼐㻫
㻳㼞㼛㼡㼚㼐㻌㼠㼔㼑㻌
㼒㼘㼛㼣㼙㼑㼠㼑㼞㻌㼣㼕㼠㼔㻌㼍㻌
㼏㼛㼜㼜㼑㼞㻌㼎㼞㼍㼕㼐㻌㼛㼞㻌㼣㼕㼞㼑㻌
㻔㻡㻚㻡㼙㼙㻞㻌㼙㼕㼚㼕㼙㼡㼙㻕㻌㼠㼛㻌
㼍㻌㼓㼛㼛㼐㻌㼑㼍㼞㼠㼔㻌㼓㼞㼛㼡㼚㼐㻌
㻔㻝㻜㻜㻌㼛㼔㼙㻌㼛㼞㻌㼘㼑㼟㼟㻌
㼓㼞㼛㼡㼚㼐㻌㼞㼑㼟㼕㼟㼠㼍㼚㼏㼑㻕㻚
㻰㼑㼟㼕㼓㼚㻌㼜㼕㼜㼕㼚㼓㻌㼟㼛㻌㼠㼔㼍㼠㻌
㼠㼔㼑㻌㼐㼑㼠㼑㼏㼠㼛㼞㻌㼜㼕㼜㼑㻌㼕㼟㻌
㼒㼕㼘㼘㼑㼐㻌㼣㼕㼠㼔㻌㼒㼘㼡㼕㼐㻌㼍㼘㼘㻌㼠㼔㼑㻌
㼠㼕㼙㼑㻚
㼅㼑㼟
㻵㼟㻌㼠㼔㼑㻌㼒㼘㼡㼕㼐㻌㼏㼍㼞㼞㼥㼕㼚㼓㻌
㼎㼡㼎㼎㼘㼑㼟㻫
㼅㼑㼟
㻰㼑㼟㼕㼓㼚㻌㼜㼕㼜㼕㼚㼓㻌㼟㼛㻌㼠㼔㼍㼠㻌
㼠㼔㼑㻌㼒㼘㼡㼕㼐㻌㼐㼛㼑㼟㻌㼚㼛㼠㻌
㼏㼍㼞㼞㼥㻌㼎㼡㼎㼎㼘㼑㼟㻚
㻺㼛
㻵㼟㻌㼠㼔㼑㼞㼑㻌㼔㼕㼓㼔㻙㼢㼛㼘㼠㼍㼓㼑㻌㼛㼞㻌
㼘㼍㼞㼓㼑㻌㼏㼡㼞㼞㼑㼚㼠㻌㼏㼍㼎㼘㼑㻌㼛㼞㻌
㼑㼝㼡㼕㼜㼙㼑㼚㼠㻌㼚㼑㼍㼞㻌㼠㼔㼑㻌
㼒㼘㼛㼣㼙㼑㼠㼑㼞㻫
㼅㼑㼟
㻺㼛
㻵㼚㼟㼠㼍㼘㼘㻌㼠㼔㼑㻌㼒㼘㼛㼣㼙㼑㼠㼑㼞㻌
㼍㼣㼍㼥㻌㼒㼞㼛㼙㻌㼑㼝㼡㼕㼜㼙㼑㼚㼠㻌
㼜㼞㼛㼐㼡㼏㼕㼚㼓㻌
㼑㼘㼑㼏㼠㼞㼛㼙㼍㼓㼚㼑㼠㼕㼏㻌㼛㼞㻌
㼑㼘㼑㼏㼠㼞㼛㻙㼟㼠㼍㼠㼕㼏㻌
㼕㼚㼠㼑㼞㼒㼑㼞㼑㼚㼏㼑㻚
㻯㼛㼚㼠㼍㼏㼠㻌㼥㼛㼡㼞㻌㼚㼑㼍㼞㼑㼟㼠㻌
㼀㼛㼟㼔㼕㼎㼍㻌㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻚
Note 1: If the detector tube is not filled with
operating fluid, the flow is indefinite and
measurement is impossible. Be sure to fill
the detector tube with operating fluid
before starting measurement.
㸫 149 㸫
6 F 8 A 0 9 2 8 13.2.4 The switches become inoperable
㻿㼀㻭㻾㼀
㻰㼛㼑㼟㻌㼕㼚㼠㼑㼚㼟㼑㻌㼘㼕㼓㼔㼠㻌㼟㼔㼕㼚㼑㻌
㼛㼚㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌㼟㼡㼏㼔㻌
㼅㼑㼟
㼍㼟㻌㼐㼕㼞㼑㼏㼠㻌㼟㼡㼚㼘㼕㼓㼔㼠㻌㼛㼞㻌
㼞㼑㼒㼘㼑㼏㼠㼑㼐㻌㼟㼡㼚㼘㼕㼓㼔㼠㻌㼎㼥㻌
㼣㼕㼚㼐㼛㼣㻌㼓㼘㼍㼟㼟㻌㼛㼞㻌㼙㼑㼠㼍㼘㻌
㼟㼔㼑㼑㼠㻫
㻼㼘㼍㼏㼑㻌㼍㻌㼏㼛㼢㼑㼞㻌㼠㼛㻌
㼎㼘㼛㼏㼗㻌㼠㼔㼑㻌㼘㼕㼓㼔㼠㻌㼒㼞㼛㼙㻌
㼟㼡㼞㼞㼛㼡㼚㼐㼕㼚㼓㼟㻘㻌㼛㼞㻌
㼏㼛㼢㼑㼞㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌
㼜㼍㼚㼑㼘㻌㼎㼥㻌㼔㼍㼚㼐㻌㼠㼛㻌
㼎㼘㼛㼏㼗㻌㼠㼔㼑㻌㼘㼕㼓㼔㼠㻚
㻺㼛
㻰㼛㼑㼟㻌㼠㼔㼑㻌㼎㼞㼕㼓㼔㼠㼚㼑㼟㼟㻌
㼏㼔㼍㼚㼓㼑㻌㼍㼘㼣㼍㼥㼟㻌㼎㼥㻌
㻻㻺㻛㻻㻲㻲㻌㼛㼒㻌㼘㼕㼓㼔㼠㼕㼚㼓㻫
㼅㼑㼟
㻺㼛
㻭㼞㼑㻌㼥㼛㼡㻌㼣㼛㼞㼗㼕㼚㼓㻌㼣㼕㼠㼔㻌
㼅㼑㼟
㼡㼚㼒㼕㼤㼑㼐㻌㼘㼕㼓㼔㼠㼕㼚㼓㻌㼟㼡㼏㼔㻌㼍㼟㻌㼍㻌
㼒㼘㼍㼟㼔㼘㼕㼓㼔㼠㻫
㻺㼛
㻰㼛㼑㼟㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌
㼓㼑㼠㻌㼞㼍㼕㼚㼑㼐㻫
㼅㼑㼟
㻺㼛
㻵㼟㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌
㼍㼠㼠㼍㼏㼔㼑㼐㻌㼣㼕㼠㼔㻌㼐㼑㼣㼐㼞㼛㼜㻘㻌
㼟㼚㼛㼣㻘㻌㼕㼏㼑㻘㻌㼙㼡㼐㻌㼛㼞㻌㼛㼕㼘㻫
㻵㼟㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌
㼔㼍㼦㼑㼐㻌㼎㼥㻌㼟㼠㼑㼍㼙㻫
㼅㼑㼟
㻼㼘㼍㼏㼑㻌㼍㻌㼏㼛㼢㼑㼞㻌㼠㼛㻌
㼎㼘㼛㼏㼗㻌㼠㼔㼑㻌㼘㼕㼓㼔㼠㻌㼒㼞㼛㼙㻌
㼟㼡㼞㼞㼛㼡㼚㼐㼕㼚㼓㼟㻘㻌㼛㼞㻌
㼏㼛㼢㼑㼞㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌
㼜㼍㼚㼑㼘㻌㼎㼥㻌㼔㼍㼚㼐㻌㼠㼛㻌
㼎㼘㼛㼏㼗㻌㼠㼔㼑㻌㼘㼕㼓㼔㼠㻚
㻻㼜㼑㼞㼍㼠㼑㻌㼠㼔㼑㻌㻱㻹㻲㻌
㼏㼛㼚㼢㼑㼞㼠㼑㼞㻌㼒㼕㼤㼕㼚㼓㻌㼍㻌
㼘㼕㼓㼔㼠㻌㼠㼛㻌㼟㼔㼕㼚㼑㻌㼛㼚㻌㼠㼔㼑㻌
㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌㼍㼟㻌
㼏㼛㼚㼟㼠㼍㼚㼠㼘㼥㻌㼍㼟㻌
㼜㼛㼟㼟㼕㼎㼘㼑㻚
㻼㼘㼍㼏㼑㻌㼍㻌㼏㼛㼢㼑㼞㻌㼛㼚㻌㼠㼔㼑㻌
㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌㼠㼛㻌
㼜㼞㼛㼠㼑㼏㼠㻌㼒㼞㼛㼙㻌㼞㼍㼕㼚㻘㻌
㼍㼚㼐㻌㼛㼜㼑㼞㼍㼠㼑㻌㼠㼔㼑㻌㻱㻹㻲㻌
㼏㼛㼚㼢㼑㼞㼠㼑㼞㻚
㻯㼘㼑㼍㼚㻌㼠㼔㼑㻌㼍㼠㼠㼍㼏㼔㼑㼐㻌
㼛㼞㻌㼔㼍㼦㼑㻌㼍㼚㼐㻌㼛㼜㼑㼞㼍㼠㼑㻌
㼠㼔㼑㻌㻱㻹㻲㻌㼏㼛㼚㼢㼑㼞㼠㼑㼞㻚㻌
㻲㼡㼞㼠㼔㼑㼞㻘㻌㼜㼘㼍㼏㼑㻌㼍㻌
㼏㼛㼢㼑㼞㻌㼠㼛㻌㼜㼞㼑㼢㼑㼚㼠㻌
㼒㼞㼛㼙㻌㼍㼠㼠㼍㼏㼔㼕㼚㼓㻚
㻺㼛
㻭㼞㼑㻌㼥㼛㼡㻌㼣㼑㼍㼞㼕㼚㼓㻌㼐㼍㼞㼗㻌
㼏㼛㼘㼛㼞㻌㼓㼘㼛㼢㼑㼟㻫
㻻㼞㻌㼍㼞㼑㻌㼥㼛㼡㼞㻌㼒㼕㼚㼓㼑㼞㻌㼛㼞㻌
㼓㼘㼛㼢㼑㼟㻌㼟㼠㼍㼕㼚㼑㼐㻫
㼅㼑㼟
㻯㼘㼑㼍㼚㻌㼠㼔㼑㻌㼟㼠㼍㼕㼚㻌㼛㼚㻌
㼒㼕㼚㼓㼑㼞㼟㻌㼛㼞㻌㼓㼘㼛㼢㼑㼟㻘㻌㼛㼞㻌
㼣㼑㼍㼞㻌㼓㼘㼛㼢㼑㼟㻌㼕㼚㻌㼘㼕㼓㼔㼠㻌
㼏㼛㼘㼛㼞㻌㼍㼚㼐㻌㼛㼜㼑㼞㼍㼠㼑㻌㼠㼔㼑㻌
㻱㻹㻲㻌㼏㼛㼚㼢㼑㼞㼠㼑㼞㻚
㻺㼛
㻵㼟㻌㼠㼔㼑㼞㼑㻌㼍㼚㼥㻌㼘㼕㼓㼔㼠㻌
㼅㼑㼟
㼞㼑㼒㼘㼑㼏㼠㼕㼚㼓㻌㼛㼎㼖㼑㼏㼠㻌㼚㼑㼍㼞㻌㼠㼔㼑㻌
㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻫
㻿㼑㼏㼡㼞㼑㻌㼍㻌㼟㼜㼍㼏㼑㻌㼕㼚㻌
㼒㼞㼛㼚㼠㻌㼛㼒㻌㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌
㼜㼍㼚㼑㼘㻌㼠㼛㻌㼍㼘㼘㼛㼣㻌㼍㻌
㼜㼑㼞㼟㼛㼚㻌㼠㼛㻌㼟㼠㼍㼚㼐㻚
㻺㼛
㻵㼟㻌㼠㼔㼑㼞㼑㻌㼍㼚㼥㻌㼞㼑㼒㼘㼑㼏㼠㼕㼚㼓㻌
㼛㼎㼖㼑㼏㼠㻌㼟㼡㼏㼔㻌㼍㼟㻌㼙㼑㼠㼍㼘㻌
㼜㼘㼍㼠㼑㻌㼜㼘㼍㼏㼑㼐㻌㼛㼜㼜㼛㼟㼕㼚㼓㻌㼠㼛㻌
㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻫
㼅㼑㼟
㻺㼛
㻯㼛㼚㼠㼍㼏㼠㻌㼥㼛㼡㼞㻌㼚㼑㼍㼞㼑㼟㼠㻌
㼀㼛㼟㼔㼕㼎㼍㻌㼞㼑㼜㼞㼑㼟㼑㼚㼠㼍㼠㼕㼢㼑㻚
㸫 150 㸫
㻻㼜㼑㼞㼍㼠㼑㻌㼠㼔㼑㻌㻱㻹㻲㻌
㼏㼛㼚㼢㼑㼞㼠㼑㼞㻌㼎㼘㼛㼏㼗㼕㼚㼓㻌
㼠㼔㼑㻌㼘㼕㼓㼔㼠㻌㼒㼞㼛㼙㻌㼠㼔㼑㻌
㼞㼑㼒㼘㼑㼏㼠㼕㼚㼓㻌㼛㼎㼖㼑㼏㼠㻌㼎㼥㻌
㼟㼠㼍㼚㼐㼕㼚㼓㻌㼕㼚㻙㼎㼑㼠㼣㼑㼑㼚㻌
㼠㼔㼑㻌㼏㼛㼚㼠㼞㼛㼘㻌㼜㼍㼚㼑㼘㻌㼍㼚㼐㻌
㼠㼔㼑㻌㼞㼑㼒㼘㼑㼏㼠㼕㼚㼓㻌㼛㼎㼖㼑㼏㼠㻚
6 F 8 A 0 9 2 8 14. Principle of Operation
The operating principle of the electromagnetic flowmeter is based on Faraday's Law of electromagnetic
induction and it is designed to measure the volumetric flow rate of fluid. An insulated pipe of diameter D is
placed vertically to the direction of a magnetic field with flux density B (see Figure 14.1). When an
electrically conductive fluid flows in the pipe, an electrode voltage E is induced between a pair of
electrodes placed at right angles to the direction of magnetic field. The electrode voltage E is directly
proportional to the average fluid velocity V.
The following expression is applicable to the voltage.
E = K × B × D × V [V] ........ (Eq. 14.1)
Volumetric flow rate Q [m3/s] is:
Q=
ȧ × D²
× V ................(Eq. 14.2)
4
E = induced electrode voltage [V]
K = constant
B = magnetic flux density [T]
D = meter pipe diameter [m]
V = fluid velocity [m/s]
Using the Equation 14.1 and 14.2
4
E=K×B×D×
×Q
ȧ × D²
4×K×B
E=
× Q ............(Eq. 14.3)
ȧ ×D
Therefore, volumetric flow rate is directly proportional to the induced voltage.
Square-Wave Excitation
(
'
%
Figure 14.1
Principle of Operation
The LF620F and LF622F electromagnetic flowmeter uses the square-wave excitation method, which
provides long-term stable operation. With square-wave excitation, the LF620F and LF622F offer reliable
measurement without being affected by electrostatic or electromagnetic interference, or electrochemical
polarization between the electrodes and the fluid to be measured.
㸫 151 㸫
6 F 8 A 0 9 2 8 15. Specifications
15.1 Specifications
General Specifications
ەMeasuring range: (measuring range by flow rate conversion)
Small/Middle meter size (1/2’’ to 18’’)
Combined detector
Measuring range
LF 414, LF434, LF494, LF654, GF63 *type
0-1.0ft/s to 0-32.8ft/s (0-0.3m/s to 0-10m/s)
(A range of 0-0.3ft/s to 0-1.0ft/s (0-0.1m/s to 0-0.3m/s) can be dealt with by an option specified at order time.)
Large meter size (20’’ to 80’’)
Combined detector
Measuring range
GF63* type (20’’ to 36’’)
LF664 Type (20’’ to 80’’)
0-1.0ft/s to 0-32.8ft/s (0-0.3m/s to 0-10m/s)
ەAccuracy: (Accuracy when combined with the detector)
࣭Combined detector: Small/Middle meter size (1/2” to 18”) LF414, LF434, LF494, LF654, GF63 type
Accuracy: s0.2 % of Rate*
* This pulse output error result is established under standard operating conditions at Toshiba's flow calibration facility,
Fuchu Japan. (NIST Traceable).
* Individual meter measurement error may vary up to ±0.5% of Rate at 1.64 ft/s (0.5m/s) or more and ±0.3% of rate ±0.039
inch/s (1mm/s) at 1.64 ft/s (0.5m/s) or less.
* Current output: plus ± 8μA (0.05% of span.)
* Refer to individual calibration data for each individual meter's measurement error.
࣭Combined detector: Large meter size (20” or 24”)
Accuracy: s0.3 % of Rate*
GF63, LF664 type
* This pulse output error result is established under standard operating conditions at Toshiba's flow calibration facility,
Fuchu Japan.
* Individual meter measurement error may vary up to ±0.5% of Rate at 3.28 ft/s (1.0m/s) or more and ±0.3% of Rate ±0.079
inch/s (2mm/s) at 3.28 ft/s (1.0m/s) or less.
* Current output: plus ± 8μA (0.05% of span.)
* Refer to individual calibration data for each individual meter's measurement error.
࣭Combined detector: Large meter size (28” to 80”)
Accuracy: s0.5 % of Rate*
GF63, LF664 type
* This pulse output error result is established under standard operating conditions at Toshiba's flow calibration facility,
Fuchu Japan.
* Individual meter measurement error may vary up to ±0.8% of Rate at 3.28 ft/s (1.0m/s) or more and ±0.4% of Rate
±0.157inch/s (4mm/s) at 3.28 ft/s (1.0m/s) or less.
* Current output: plus ± 8μA (0.05% of span.)
* Refer to individual calibration data for each individual meter's measurement error.
㸦Note㸧Refer to individual specification sheet’s accuracy when combined with another detector.
㸫 152 㸫
6 F 8 A 0 9 2 8 Conductivity:
3ȣS/cm or more (Combined detector : LF654 )
5ȣS/cm or more (Combined detector : LF414, LF434, LF494, LF664,
GF63 )
Ambient temperature:
- 4 to 140 °F (-20 to +60Υ)
Storage temperature:
- 13 to 149°F (-25 to +65Υ)
Power supply:
100 to 240Vac (allowable voltage range: 80 to 264Vac 50/60Hz)
24Vdc (allowable voltage range: 18 to 36Vdc) or
110Vdc (allowable voltage rangel:90 to 130Vdc)
Without communication function
15W (22VA) or less
When standard is used;
(10W(14VA) at 100Vac and Excitation current: 0.2A)
With communication function
17W (24VA) or less
Power consumption:
Input
Input signal:
࣭Flow rate proportional signal from the detector
࣭Digital input signal
Signal type:
20 to 30Vdc voltage signal
Input resistance: About 2.7kȐ
Number of input points:
1
Digital input function: Select either of the following.
࣭ Range switching input: Large/Small range switching of unidirectional double range,
forward/reverse direction double range
࣭ Counter control input: Internal totalization counter start/stop/reset control
࣭ Output hold input: The current output and pulse output are kept to their preset
values.
࣭ Zero adjustment input: Start still water zero adjustment.
Output
Current output:
4 to 20mAdc (load resistance 750Ȑ or less)
Digital output 1:
Output type:
Capacity:
Number of output points:
Transistor open collector
30Vdc, Max 200mA
1
Digital output 2:
Output type:
Semiconductor contact signal output
(no polarity)
150Vdc, Max. 150mA
150Vac (peak value), Max. 100mA
1
Capacity:
Number of output points :
㸫 153 㸫
6 F 8 A 0 9 2 8 Digital output function: Select one of the following:
࣭
Totalization pulse output:
Pulse rate
Max. 10kHz(10000pps) 㺃㺃㺃 DO1
Max. 100Hz( 100pps) 㺃㺃㺃 DO2
Pulse width
Can be set within a range of 0.3 to 500ms.
However, must be 40% or less of the full-scale cycle.
If the full scale 1000pps is exceeded,
automatically set to 40% of the full-scale cycle.
࣭ Multi-range switching output: In the case of fourfold range or forward/reverse
double range, the digital output is used by two
points.
࣭ High and low alarm output
࣭ High-high and low-low alarm output
࣭ Empty alarm output
࣭ Preset counter output
࣭ Converter malfunction alarm output
࣭ Multiple range high and low limit alarm output
Output display: Full-dot matrix 128 x 128-dot LCD (with back light)
Communication signal
Method (protocol): HART or PROFIBUS (option), Modbus (option)
Load resistance:
240 to 750Ȑ (HART)
Load capacity:
0.25ȣF or less (HART)
Structure
IP67 and NEMA 4X
Housing
Aluminum alloy
Coating
Acrylic resin-baked coating, metallic-gray colored
Cable connection port
1/2-14NPT thread
Cable connections not provided.
Surge arresters
Surge arresters are installed in the power supply and current signal output circuit.
㸫 154 㸫
6 F 8 A 0 9 2 8 15.2 Model Number Table
Model number
1 2 3 4 5
Specification code
6
7
8
9
10 11 12 13
L F 6 2
Contents
14
0
Electromagnetic flowmeter converter
Combined type
2
Separate type
Purpose
cFMus classϨ, Division 2 approved
Shape
Standard type
Converter mounting fitting
None
Panel, Accessory for wall mounting
(Bolts and Nuts material: SUS304)
Accessory for pipe installation
(Bolts and Nuts material: SUS304㸧
F
A
A
C
E
2
1
2
3
1
2
3
E
Digital input / output
Digital output points 2(DO1+DO2)+Digital input point 1(DI)
Current output and Communication function
Current output + HART communication
PROFIBUS communication (Current output is not usable)
Current output + Modbus communication
(DO1,DO2,DI is not usable)
Power supply
100Vac - 240Vac, 50/60Hz
24Vdc
110Vdc
Instruction manual
English
ۑ: Selectable 㸫: Unselectable
LF620F type
LF622F type
Converter Model Number Table
ۑ㸫
㸫ۑ
ۑۑ
ۑ㸫
ۑۑ
㸫ۑ
㸫ۑ
ۑۑ
ۑۑ
ۑۑ
ۑۑ
ۑۑ
ۑۑ
ۑۑ
ۑۑ
Note: When PROFIBUS communication is provided, current output (420mA) and HART communication
cannot be used.
When Modbus communication is provided, digital output points 1(DO1) and digital output points
2(DO2), digital input point 1(DI), HART communication cannot be used.
㸫 155 㸫
6 F 8 A 0 9 2 8 16. Outline Drawing
16.1 LF620F Type
Weight : Approx. 5 lb
unit: inch (mm)
Detector dimensions:
Check the dimensions of the detector
with the instruction manual of the
combined detector.
Figure 16.1
Outline of LF620F Type
㸫 156 㸫
6 F 8 A 0 9 2 8 16.2 LF622F Type
Weight : Approx. 7 lb (including the installation plate).
unit: inch (mm)
Panel or wall mounting dimensions
Figure 16.2 Outline of LF622F Type
㸫 157 㸫
6 F 8 A 0 9 2 8 Appendix
Appendix 1 Reverse Lookup of Functions based on Applications
(1) Use the converter for flow applications opposite the direction indicated in the arrow nameplate.
Set the Flow Direction to SWITCH. Refer to 8.2.5 Flow Direction Setting (Function A-4) for more
details
(2) Use a unique unit not built in the converter.
Set the coefficient necessary to compute for the custom unit in the Custom Coefficient, as well as input
the character string in the Custom Unit. Refer to 8.2.7 Custom Coefficient Setting (Function B-2) and
8.2.8 Custom Unit Setting (Function B-3) for more details.
In order to show a value using the custom unit, set either Display 1 or Display 2 to CUSTOM. Refer to
8.2.6 Display Setting (Function B-1, B-2) for more details.
To apply the custom unit to the range, set the range unit to CUSTOM. Refer to 8.2.9 Span (Range)
(Function C) for more details
Refer to 10.10 Custom Unit Function for more details about this function.
(3) Use the range in two levels.
Set the Range Type to 4F-0R. A maximum of 4 levels may be set for flows in the forward direction.
Refer to 8.2.9 Span (Range) (Function C) and 10.3 Multi-range Function for more details.
(4) Measure reverse flows.
Set the Range Type to 2F-2R and set the ranges for both the forward and reverse directions. Refer to
8.2.9 Span (Range) (Function C) and 10.3 Multi-range Function for more details.
To use the totalizer pulse output during reverse flows, please set the Digital Output function to PLS
OUT (for both forward and reverse directions) or PLS REV (for reverse direction only). Refer to 8.2.18
Digital Output (Function H) for more details.
(5) Use multiple ranges and switch the ranges using an external signal.
Set the Range Type to EXT 2F-0R or EXT 2F-2R and set the Digital Input function to RNG SW. Refer
to 8.2.9 Span (Range) (Function C), 8.2.19 Digital Input (Function I) and 10.3 Multi-range Function
for more details.
In addition, to output a signal based on the range currently being used, set the Digital Output function to
RNG SIG1 or RNG SIG2. Refer to 8.2.18 Digital Output (Function H) and 10.3 Multi-range
Function for more details.
(6) Output a signal once the totalized flow reaches a predefined value.
Set the Preset Value to be reached to generate an output signal and set the type of output (either a one
shot pulse or a status). Refer to 8.2.21 Preset Count (Function K-1) and 8.2.22 Preset Mode (Function
K-2) for more details.
㸫 158 㸫
6 F 8 A 0 9 2 8 Afterwards, set the Digital Output to PRESET C. Refer to 8.2.18 Digital Output (Function H) and 10.5
Preset Count Function (Function K-2) for more details.
(7) Check the instantaneous flow rate and the totalized flow volume in both the forward and reverse flow
directions at the same time
Set the instantaneous flow rate unit in Display 1.
Set the unit for the totalized flow volume and then set the totalized flow volume direction to C. When C
(Cyclic) is selected, the totalized values for the forward and reverse directions as well as their
difference are displayed in cyclic order every 5 seconds. Refer to 8.2.6 Display Setting (Function B-1,
B-2) for more details.
(8) Change the number of digits displayed for the instantaneous flow rate.
Set the unit for the instantaneous flow rate in either Display 1 or Display 2. The display digit setting
screen will automatically prompt afterwards. Refer to 8.2.6 Display Setting (Function B-1, B-2) for
more details.
㸫 159 㸫
6 F 8 A 0 9 2 8 Appendix 2 Factory Default/ Standard Values
Parameter names
Excitation frequency
Flow direction
Display 1
Display 2
Display digit setting
(for Display 1 and Display 2)
Custom coefficient
Custom unit
Default value(SI unit)
Value(*1)
NORMAL
m3/h
m3
1/1000
Default value(English unit)
Value(*1)
NORMAL
gal/min
COUNT B
1/1000
Range type
Range 1
Ranges 2 to 4
Hysteresis
Damping constant
Rate-of-change limit
Control limit time
Low cutoff
Display low cutoff
Manual zero
420mADC alarm output
Output low limit setting
Digital output 1
Digital output 2
DO1/DO2 active status
Digital input
DI detective level
Count rate
Pulse width setting mode
Pulse width
Preset count
Preset function
High alarm On/Off
High alarm value
Low alarm On/Off
Low alarm value
High-High alarm On/Off
High-High alarm value
Low-Low alarm On/Off
Low-Low alarm value
Empty pipe alarm
Self-diagnosis On/Off
Converter alarm
Fixed value output
Fixed value current
Fixed value pulse
Password
1.0
“ CUSTOM”
(Head of character string
is blank )
SINGLE
Value(*1)
0.00 m3/h
3.0 %
1.0s
0.0 %
0.0 s
1.0 %
LINEAR
0.0 %
4mA
4mA
PLS OUT
NO USE
NormOPEN
NO USE
H LEVEL
Value(*1)
AUTO
100 ms
00000000
HOLD
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
NORMAL
ON
CONV ONLY
OFF
4mA
0 pps
000
LCD density adjustment
Switch position setting
Detector type
3
BOTTOM
EXC CAL
1.0
“ CUSTOM”
(Head of character string
is blank )
SINGLE
Value(*1)
0.00 gal/min
3.0 %
5.0s
0.0 %
0.0 s
1.0 %
LINEAR
0.0 %
4mA
4mA
PLS OUT
EMPTY ALM
NormOPEN
NO USE
H LEVEL
Value(*1)
AUTO
5 ms
00000000
HOLD
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
OFF
0.0 %
NORMAL
ON
CONV ONLY
OFF
4mA
0 pps
000 (converter version
V0104 or earlier)
LV,000 (converter version
V0105 or later)
3
BOTTOM
EXC CAL
*1 : Setting value by meter size please refer to the next list.
㸫 160 㸫
Changed value
6 F 8 A 0 9 2 8 When parameter value was appointed in order, parameter value may be different from list.
Setting value in each size
Ex.
Range 1 (SI unit)
Meter Size
Freq
(mm)
(m3/h)
(m/s)
(Hz)
15
24
2
3.144
25
24
6
3.395
32
24
10
3.454
40
24
15
3.316
50
24
25
3.537
65
24
40
3.348
80
24
60
3.316
100
24
100
3.537
125
24
150
3.395
150
24
200
3.144
200
24
300
2.653
250
12
600
3.395
300
12
900
3.537
350
12
1200
3.465
400
12
1600
3.537
450
12
2000
3.493
500
6
3000
4.244
600
6
4000
3.930
700
6
5000
3.609
750
6
6000
3.773
800
6
7000
3.868
900
6
9000
3.930
Range 1 (English unit)
Count rate
(gal/min)
(ft/s)
(SI unit)
(English unit)
25
75
125
175
300
475
650
1000
1750
2500
4500
7000
10000
12000
16000
20000
25000
40000
50000
60000
70000
80000
29.283
31.625
32.171
28.826
31.625
29.629
26.766
26.354
31.625
29.283
29.649
29.517
28.283
25.817
26.354
26.029
26.354
29.283
26.892
28.112
28.825
26.029
0.01m3
0.01 m3
0.01 m3
0.01 m3
0.1 m3
0.1 m3
0.1 m3
0.1 m3
0.1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1 m3
1gal
1gal
1gal
1gal
10gal
10gal
10gal
10gal
10gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
100gal
㸫 161 㸫
6 F 8 A 0 9 2 8 Appendix 3 System Block Diagrams
3-1 A system block diagram for LF620F
㸫 162 㸫
6 F 8 A 0 9 2 8 3-2 A system block diagram for LF622F
㸫 163 㸫
6 F 8 A 0 9 2 8 Write down the address and phone number of the distributor from which you purchased this product,
the product code, SER.NO. and so on.
Distributor
Address
Name
Phone number 㸦 㸧
㸫
Product code LF
SER.NO.
㸫 164 㸫
FCF50017
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