Toshiba LF494 User Manual

TOSHIBA

6F8A0774

ELECTROMAGNETIC FLOWMETER

MODEL LF494 / LF404

INSTRUCTION MANUAL

TOSHIBA CORPORATION

TOSHIBA

NOTICK
This Manual is designed to assist in installing, operating, and maintaining the
LF494/LIH04 electromagnetic: flowmeter, i’or safely reasons, and to obtain the opti
mum performance from the flowmeter, read this Manual thoroughly before working
with the product. Keep the Manual within easy reach fcjr reference whenever needed.

The flowmeter to which this Manual refers is NOT designed for applications m which
the functioning of this product is critical to human safety, such as:

♦ Main cejntro! syaicms of nuclear power plants; safely systems in nuclear facilities

• Control systems of medical equipment, including life support machines.

6F8A0774

or other ciilical control lines directly affecting human safety.

NOTES

L 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. 1’hc 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 ihe regulations in force in the country in which this product is to be used.

HART is a registered trademark of ihe HART Ccrnmunication Foundation,
Teflon is a rcgislcrcd trademark of the DuPont Company.

Forth F.dition
October. 2000

€> Copyright 1999, 2000 hy To.shiha Corporation. All rights reserved.

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TOSHIBA

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 datnagu lo property and obviate
hazards for persons using the product,
Make yourself familiar with signal words and symbols used for safely signs and labcJs, 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 arc used to designate a degree or level of hazard seriousness.
The ssignal words used for the product described in this manual arc WARNING and

CAUTION.

A WARNING

6F8A0774

Indicates a potentially hazardous situation
which, if not avoided, could result in death or
i^erious injury.

Safety .symbols

Indicates a potentially hazardous situation

A CAUTION

rhe 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

0

•
Л

the circle
Indicates an action that is mandatory, DO this action,

1 he 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.

w hich, if not avoided, may result in minor lo
moderate injuries or in property damage.

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TOSHIBA

SAFETY PRECAUTIONS

Safety Precautions for Installation and Wiring

A WARNING

Do not diNCOTinecl while circuit h live unless k>cntion is known lo be nonhuz­ardous.

6,F8A0 7 7 4.

0

DONT

I Oo not modify or disassemble the enclosure,

xdiy Strength dcgtadsition and defects of enclosure can cause explosion.

DONT

Do not use parts of other products.

0

DONT

Do not live circuits While assembly of all components is not over.

0

DONT

Install per the National Electrlciil Code for the LS (NEC, ANSI/NFPA 70)
and the Canadian Electrical code for Canada (CEC, CAN/CSA>C22J).

О

DO

Live pari of electric circuit ora high temperature department can cause
explosion.

Protective performance degradation for hazardous location can cause

explosion.

Protective performance degradation for hazardous location can cause
explosion.

Unsuitable conduit connections for hazardous location can cause ex
plosion.

A CAUTION

■ Turn off mains power before working
on pipes.

Working on pipes while
power is applied can cause

QQ electric shock.

■ Install a switch and fuse to isolate the
LF494/LF404 from mains power.

Power supply from mains

power can cause electric

□ 0 shock or circuit breakdown.

■ Use an appnipriate device to carry
and install the LF494/LF4Q4.

If this product falls to the
ground, injury, or malfunction

of or damage to the product,
can be caused.

■ Du not modify or disassemble the
LF494/LF404 unnecessarily,

Modifyingordisasscinhling

( this product cart cause electric

shuck, malfunction uf or

DON T damage to this product.

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TOSHIBA

SAFETY PRECAUTIONS (continued)

Safety Precautions for Maintenance and Inspection

CAUTION

■ Turn off mains power before

conducting wiring work.

Wiring while power is ap­plied can cause electric shock,

DO

■ Do not condnet wiring work with bare
hands.

Remaining electric charge

■ Ground the LF494/LF404 indepen
dently from power equipment,

^^9 grounding can cause electric

■ Use compression terminal lugs with

insulation sleeve for the termmul

block and GND terminal.

I even if power is turned off

DON’T

■ Do not work on piping and wiring w ith
wet hands.

f J electric shock.

DON’T

can still cause electric shock.

Wet hands may result in

^|\ pow'cr input.

/ J \ (A black border and symbol on

6F,8A0 774

Operating this product without

shock or mal fu net ion.

Loose connections can cause
electric shock, fire from
excessive current or system
malfunction.

The label shown left is placed
near the terminal board for

yellow triangle)
Be alert to electric shock.

■ Do not touch the flowmeter main

body when high temperature fluid is
being measured.

The fluid raises the main y^“V Wiring while power is applied

i body temperature and can

cause burns when toucheil.

DON’T

■ Do not conduct wiring work with wet

hands. yy neaj ihe icrininal board for

1 Wet hands may result in

electric shock.

DON’T

■ Do not use a fuse other than the one Use a rated fu.se as follow^]
¡»pvcifled.

Using a fuse other than the

\ one specified can cause

V, ;V system failure, damage or

mal ft! action.

DON’T

■ Do not conduct wiring work when
power is applied.

i can cause electric shock.

DON’T

The label shown left is placed

/w\^ power input.

/ (A black border and symbol on

yellow triangle)
Be alert to eleciric shock.

Fuse rating:

* 1 A;250V for 100 to 24t)Vacor llOVdc

• 2A^250V for 24 V dc

Dimensions:

Diameter 5.2 inm x 20 mm

Melting time characteristic:

Normal blow |

Disclaimer

Toshiba does noi 9ccep[ liitbility for any dsimagc or loss, msuerial or personal, caused its a
direct or indirect result of the operation of this product in connection with, or due to, the
occurrence of any event of force majeurc (including fire or earthquake) or the misuse of
this product, whether iutcntiounl or aeddentaJ.

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TOSHIBA

Handling Precautions

■ To obiairi the opiimutn pcrforiimnce from the LJ"494/LF4C4 flowmeter for yeiirs of
coHtinuou!» operation, observe Ihc following preciiutions.

(1) Do not store or instiiJl the flowmeter in:

(2) Exccjlc wiring securely and correctly,

6F8A0774

• places where there is direct sunlight. If this is unavoidable, use an appropriate

sSunshade,

• places where excessive vibration or mechanical shock occurs,

• places where high i строга lure or high humidity conditions obtain,

■ places where corrosive atmospheres obtain,

• places submerged under water,

To put the flowmeter temporarily on the floor, place ¡t carefully with something to
support it so that the tlowmcicr will not topple over,

Ground the flowmeter whth 1Ш ohm or less ground resistance* * Avoid a common
ground used with other equipment where earth current may flow. Ал independent
ground is preferable

(3) Seal the cable thoroughly at ths cable gland so that the cable is kept airtight. The

apparatus should not be provided with the cable gland. Please prepare yourself lor
the cable glands which could he used in Division 2 hazardous locations.

(4) Make sure the fluid to be measured will not freeze in the detector pipe. This can

cause damage to the detector pipe.

{5) Select appropriate wetted materials suited for the process fluid to be measured.

Otherwise, fluid leakage due to corrosion can be caused,

(6) The converter housing covers ¿re lightened securely at the time of shipment. Do

not remove these covers or glands unless it is necessary to wire new cables or re
place old ones. Otherwise, gradual deterioration of circuit isolation or damage !o
this product can be caused. Tighten the covers securely again if they have hcca re
moved.

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TOSHIBA

Handling Precautions (continued)

(7) Observe the lollowing precautions when you open the converter housing cover:

• Do not open the cover in the open air unprotected ugainsi rain or wind, I'his
can cause eieciiic shock cr cause damage to the flowmeter electronics,

* Do not open the cover under high ambient teraperaitire or high humidity

conditions or in corrosive atmospheres. This can cause deterioration of
system accuracy or cause damage to the flowmeter electronics,

(8) ThisS product may cause interference to radio and television sets if they are

used near the installation site. Use meta! 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;

• Do not use a radio transmitter while the cover of flowmeter converter is open.

» Do not use a transceiver whose output power is more than 5 W.

• Move the antenna of a radio transmitter at least 50 cm away from the ilowtneter
and signal cables when using it,

• Do not use a radio transmitter near the flowmeter while it is operating online.
The transmitter’s output impulse noise may interfere with the flowinder.

• Do not install a radio transmitter antenna near the flowmeter converter and
signal cables,

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(10) For reasons of flowmeter failure, inappropriate parameters, unsuitable cable con

nections or poor jnstallaiion 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 sigttal re*
ceiving side.

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TOSHIBA

TabJe of Contents

6F8A0774

SAFETY PRECAUTIONS

Hiliidling Precautions .....................................

1, Product Inspection and Storage ''

1.1 Product Inspection
L2 Storage

...............................................

...........................

2* Overview .....................................................

3- Names of Parts

4, Installation

4.1 Location

..............................................

...................................

...........................................

4.2 Mounting Procedure..........................

4.3 Piping Connections

5h Wiring

...........................................

..........................

5.1 Cables ...............................................

5.2 External Device Connections and Grounding

5.3 Digital I/O Connections

5.4 Wiring Procedure

6. Operation ■ •

........

........................................

...................

.............................

6.1 Preparatory Check ............................

G.2 Zero Adjustment

7* LCD Display and Controls

...............................

.....................

7.1 Outline ..............................................

7.2 Display Formal .................................

7.3 Basic Operations

..............................

7.4 Configuration Items Scleclion Tabic

7.5 Password Input

8. Configuration Parameter Setting

.................................

8.1 Configuration items .........................................

8.2 Checking or Changing Parameters

9* Calibration ..................................................

..................

’ 2

■ ■ 5
. . . 9

9

. 9

- 10

■ ■ II

■ 14
15

' 16

■ ■ 18

■ ‘ 23

■ ■ 25
25

■ ■ 27

■ ‘ 28
30

- 30

■ 31

■ ‘ 32

■ ■ 32
34

36

■ ' 42
43

' 44

- 44
‘ 44

101

9.1 Calibration Items .............................................

9.2 Calibration Using Converter Signal Source

- 7

101
102

TOSHIBA

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10. Digital I/O Functions

10.1 Digital I/O SpecificaiiOQS

.........................................

...................................

10.2 Totalizer and Pulse Output ....................................

10.3 Multi-range Functions ...........................................

1G.4 High and Low Limit Alarms

10.5 Empty Pipe Alarm
10k6 Preset Point Output

..............................................

..............................................

10 J Remote Zero Adjustment

................................

......................................

10.8 Remote Selection of FiTfccl Value Output

10.9 Converter Failure Alarms

IL Communkatinns Function

.....................................

.....................................

11.1 Communications with llic AFIOO Terminal

11.2 Communications Procedure

1L3 Cautionary Notes on Communications ..................

12, Self-Diagnostics and Alarms .................................

12.1 Self-Diagnostics ....................................... ............

12.2 Output Status for Errors and Alarms

13, Maintenance and Troubleshooting

13H Maintenance

13.2 Troubleshooting

14, Principle of Operation ......................................

.......................

....................................................

......................

...................................

....................

-

.

15, Specifications ..................................................................

15.1 Flowmeter Specifications ■ ■ —

..........................

15.2 Type Specification Code .......................................

16, Outline Dimensions .

Appendix 1 . Electromagnetic Compatibility and Low Voltage

Electromagnetic Compatibility

......................................................

................................................

Low Voltage Safety.......................................................* - . . -

Safety

106

107
108
113

118

120

121

125
126
127
128
J28
129
130

131
131
134
135
136
139

142

143
143
148
151

152
152
153

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TOSHIBA

Ь Product Inspection and Storage

upon iirrival of the produt;i packiigc» open Ihc package and check the items contained inside.

If you do not intend ю install the product soon after opening the package, store Ihc product

and other related items in a place such as described in 1,2 below,

LI Product Inspection

The LF494/LF404 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 arc included in the package.

(1) Model LF494/LK404 Electromagnetic Flowmeter*...,* i

(2) Instruction Manual

■ 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 (he
ordered spccillcations.

If you cannot find the items listed above or any problem exists, contact your nearest

Toshiba representative.

6F8A0774

..................................................... |

1.2 Storage

To store the I.r494/LF404 flowmeter after opening the package, select a
storing place as follows and keep it under the conditions described below:

(1) Avoid places where there is direct sunlight, rain or wind.
(2) Store the product in a weli-vemilaicd place. Avoid places of extremely high

humidity or extremely higher low temperature. The following environment is
recommended:

* Humidity range: 10 to 90% RH (no condensation)

• LStoruge temperature: -15 to +65* C

(3) Avoid places where vibratioiis or mechanical shock occur.
(4) Uo not leave the converter housing cover open . Open the cover only w'hen

you actually start wiring cables. I.eaving the cover open can cause gradual

deterioration of circuit isolation.

(i) To put the flowmieter temporarily on the floor, place it carefully wi\U something

to support ii so that the flowmeter will not topple over

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TOSHIBA

2, Overview

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The LP494/LF404 ciectromagiiclic flowmeter can be use in the following hai;ardous (clas
sified) locations,

(1) FM Approval

Class I , Division 2» Groups B, C and D,
Class n , Division 2, Groups K and G
Class IIE

(2) CSA Certification

Gass I , Division 2, Groups B, C and D,
Class U, Division 2, Groups E, F and G
Class in

The device measures the volumetric flow rates of electrically conductive materiaU on

the basis of Faraday's J.aw of electromagnetic induction.

The device consists of two unit.s; the detector» through which the fluid to be measured

flows, and the converter, which receives the electromorive force signals from the
delector, then converts the signals into the 4—20 mA dc signal.

Model LF494/LF404 is a sanitary elcctromagneiic flowmeter designed for applications
handling food and beverages. Sani'.ary flowmeters must be sinictured in such a way dial
operation and handling is simple, easy and thorough for the purpose of sanitary control
such as cleaning, sterilizing and drying, llic flow-meter has no obstacles in the flow

stream and it is designed to provide indispensable conditions for sanitary control and is

fit for flowrate measurcjncnt for food and beverages.

Features

Model LF494/LF404 sanitary flowmeter has Ihe following features:
(J) Fluid flow is not obstructed and pressure loss is negligible.

Toshiba's original noisc-suppression circuit with signal processing capabilities ensures

(2)

a stable oulpul.
Has no moving parts and flow indication is quick with high accuracy even under low'

(3)

flowrate measurement conditions.
Equipped with a ferrule, compatible with ISO clamp connection, at both ends of the

(4)

detector. They can be mounted or dismounted easily and securely.
No obstacles in the flow stream and nowhere remains the fluid along the detector pipe.

(5)

Thus deterioration or corrosion of fluid does not <xxmr.

High accuracy, ±0,5% of rale is possible for 0.3-10 m's velocity range.

(fi)

0,1 lo 0.3 m^s range is available oplionaljy.

The flowmeter has various flow measurement output and control functions as standard

(7)

specifications and the optional LCD display for convenient parameter settings.

• 'I’hcse functions can be selected with control keys on the panel.

Intelligent functions

(S)

* The widely used HART protocol comm uri real ions system is used as a standard

feature, HART (Highw'ay Addressable Remote Transducer) is a communications
protocol for industrial sensors recommended by HCF (HART Communication
Foundaiion).

.An easy-io-rcad LCD display (2-line x 16-character display) (optional)

(У)

• The backlit LCD display can be read even under poor lighting conditions.

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TOSHIBA

3. Names of Parts

The oulline drawing of the LF4y4/LF404 flowmeter is shown in Figure 3.1 and (lie in*

_____________

IMPORTANT

The apparatus should not be provided with the cable glands^

Please prepare yourself for the cable glands which could be used in Division2 hazardous locations.

icrnal views of tJie I.F404 converter arc shown in Fifinres 3.2 and 3,3,

____________

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Outline ]>ra>i^ing

Converter

LF494/LF404 withaiit LCDdispliiy(standarcl)

Convcrlcr

LF494/I J*'404with IXD display (optiimal)

Figure 3,1 OutliDe drawing of LF494/LF404 Flowmeter

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TOSHIBA

Tennina] Board of O^'404 Converter

6F8A07.74

Power supply LcrmijjLils

Digital output (DOl) D02)

tcrminalu

Internal grounding terminal

External groondini*

^ terminal

Digital input (Ur) terminal

Common for Dl, DOl and 1X)2

Figure 3*2 Teminnl Bt>ard of LF404 Converter

Current output terminal

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TOSHIBA

Contrri switch or kej's of LF404 Converter

6F8A0774

LF404 without LCD Dtsplay

Figure 3J Control switch or keys of LF404 Converter

-

13

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TOSHIBA

4. Installntion

Safety Precautions For Installation

I

Do not live ciremts under envTonmcni of explosive atmospheres.

6F8A0 7 7.4

A WARNING

(S)

DONT

M Do not use parts of other products.

O

DOMT

f Do not live circuits While assembly of all components is not over.

0

DONT

I Install per the National Electrical Code for the US (NEC, ANSI/NFPA 70)

and the Canadian Electrical code for Canada (CEC, CAN/CSA-C22J)«

O

DO

Live part of electric circuit or a high temperature department can

cause explosion.

Protective performance degradation for hazardous location can
cause explosion.

Protective performance degradation for hazardous location can
cause explosion.

Unsuitable conduit connections for hazardous iocation can cause
explosion.

A CAUTION

■ install a switch and fuse to isolate
the LF494/L.F404 from main power.

Power supply from main
power can cause electric
shuck or circuit

QQ breakdown.

■ Use an appropriate device to carry and
install the LF494/LF404.

If his product falls to the
grou nd, i nj u ry, or
malfiincrioji of or damage (o

[jQ the product, can he caused.

■ Do m>t modify or disassemble the
LF494/LF404 unnecessarily,

Modifying or
disassembling this product

vHy cause electric shock

m a If un ction or d am age to

DON’T product

■ Do not work on piping and wiring

with wet hands.

Wet hands may result in

electric shock

DONT

-

14

■ Ground the LF494/LF4(M
Independently from power equipment.

Operating this product without
grounding can cause electric

Q0 shock or malfunction.

The label shown left is placed
near the terminal hoard for
power input,

/ J \ (A black border and symbol on

yellow triangle)

Re alcri to electric shock.

-

TOSHIBA

4A Location

6F8A0774

To Kcicct the inslaUatioii site, follow the prccaations described below:

■ Avoid places where fluid runs in a pulsating torm,

■ Avoid plaees wiihjji the immediate proximiiy of equipment producing electrical
interference (such as motors, transformers, radio transmitters, electrolytic cells, or

oiher equipment causing electromagnetic or electrostatic interference),

■ Avoid places where excessive pipe vibration occurs,

■ Avoid places where there is direct sunlight. If this is unavoidable, use an appropriate
shade

■ Avoid places w'here corrosive atmospheres or Jiigh humidity conditions obtain,

■ Avoid places of loo great an elevation or constricted areas where clearance
for installation or maintenance work is not provided,

■ Design piping so that the detector pipe is always filled with fluid, whether the fluid is
flowing or not,

■ The LF494 detector has no adjustable piping mechanism, Insiall an adjustable short

pipe where needed.

■ Chemical injections should be conducted on the dow-nstream side of the flowmeter

15

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TOSHIBA

4.2 Mounting Procedure

6F8A0774

A CAUTION

■ Use an appropriate device to eatry

and inistall the LF494/LF404. working on pipes.

If his product falls lo the

A B ground, injury, of power is applied can

malfunciioit of or damage

DO to the product, can be

caused.

4.2.1 Pipe checks

Before insiaJling pipes, check for iiny leaning ns illustrated in Figure 4.1. An attempt to
unreasonably connecting pipes that arc inclined may lead to a detector breakdown or
tlnid leakage. Connecting pipes in an eccentric state may also cause local wears and leans
of linings, as well as measurement errors.

Before installing pipes, make sure lo flash the iiiierior of the pipes to remove deposited

matters.

■ Turnoff mains power before

Working on pipes while

V_y cause electric shock.

DON’T

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TOSHIBA

4,2,2 Installation Procedure

6F8A0774

The LF4y4/LF404 adopis the ISO ^^^52 ditmp connection mcihcnJ­To mount the 1.F494/LF404, see Figure 4.2 and follow the procedure below;

1. Weld a ferrule of the detector to the proces.s pipe on both upstream and downstream
sides.

2. Install the LJ’494/LI-404 between the two tcrrulcs w'hicli were welded to the pnjcess

pipes above.

3. InstaU a gasket betw^een ;he grooves of theferruJeon the detector side and lhal of the

ferrule on the process pipe for both upstream and dow^nslream sides, 1 iicn place a

clamp over the joined ferrules as shown in I’igure 4,2 and tigliien with the screw' for
both upstream and downstream process pipes.

IMPORTANT

When high-temperature fluid is being nieasuredj radiant heal from ihe detector pipe surface and
adjoining pipes may cause the ambient temperature of the converter to go above 60 °C. If the
ambient tempera lure goes above 60^ C, (ry to lower the temperature by measures such as wrap
ping hcal-insulating materials over the detector pipe and adjoining pipes.

_______________________________

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TOSHIBA

4J Piping Connections

(1) Required Pipe Length

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If various jaintsS ¡irc used upiitream of the cleiector oullot, the straight pipe length us

shown in Table 4J is required.

Table 4.1 Required straight pipe length on the upstream side

L: Required straight pipe ietiglh—straight pipe length plus half length of the detector.
D: Nominal bore size (diameter)

NOTES

1. The length of a reducer* if connected, can be counted as a part of the straight pipe
length.

2. No straight pipe letiglh is needed on the downstream side, if a butterfly valve is
installed downstream of the detector, do not let the valve plate protrude into the

pipe of the detector

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TOSHtBA

6F8A0774

C2) PipÊ Orientation

The detector may be installed in horizontal, vertical or sloping pipe runs as shown in

Figure 4,3, However, cxccpl for horizontal installation, llmd should flow from lower to
upper directions. See Figure 4.3.

r~

Fldw direction

I

I^Cb)

(a) Horizontal pipe instailation
(h) Vertical pipe installation
(c) Sloping pipe insialiation

Ground sgriace

Figure 43 Detector Piping Orientation

The electrodes should be positioned horizontally against the ground surface in any piping
installation. See Figure 4.4.

(Jmss-scdiiin A - A

Figure 4.4 Installation position of the detector

-

19

-

Ground surface

TOSHIBA

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(3) Flow Direction

Install the delector in accordance with the flow direction arrow on the detector. See I’ignre 4,5.
If the actual flow runs opposite to the specified flow direction, the following display and
output appears.. (For bidirectional multi-range measurement, sec 103^ “Mulli-rangc
Functions/’).

* LCD display (optional)« Instantaneous How rate—indicates negative values»

Totalized flow—no a>unts added,

* Output:Current output—4.0 mA output; Pulse output—No pulses

For bidirectional range measuremenu the flow in opposite direction results in a positive

output value. See 10.3» “Multi-range Functions/’

(4) Preventing sin Empty Pipe Condition

Design an upright pipe run (Figure 4.6) or sufficicjit head pressure (Fig, 4.7) at the
downstream detector oullet if there is a possibility of the detector pipe becoming emptied.

Upright pipe run

Figure 4«6 Detector with 3n upright pipe run at dow'ustream outlet

Detector

Z

Figure 4.7 Detector with sufficient head pressure at downstream outlet

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TOSHIBA

6.F8A0774

(5) Supporting Pipe

Fix Ihc relevant pipes installed on both sides of the detector by attach fittings, etc. to support

the pipe. Y iy supporting the pipes, not only the pipe vibration is reduced but also the damage
to the pipes by the electromagnetic flowmeter's weight and the fluid mass. And it protect
from fluid leakage at flange face (see Figures 4.^ and 4.9).

Figure 4,8 Example of Pipe Fixing Procedure

Figure 4,9 Model Diagram of L'nsupported Pipes

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TOSHIBA

6F8A07.74

(6)Groiindirif<

The grounding terminal of the LF494/LK404 Qo’ameter should be grounded with lOUohm
or less ground resistance. Use a heavy copper braid or wire (cross-sectional area 5,5 nun"
minimum) to ground the lerminal and make it as short as possible. The terminal is M4 siiic
and an M4-siiie crimped ring fug should be used to connect the wire to the terminal. Avoid a

common ground where earth currcni may fliw. An independent ground is preferable, See

Figure 4.1(1.

To prevent a iwo-poini grounding, ground the shielded cable on the receiving instrument
side,

Figure 4.10 Grounding Procedure

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TOSHIBA

5, Wiring

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Ж WARNING

DO NOT DISCONNECT WHILE CIRCLIT LS LIVE UNLESS
LOCATION IS KNOWN TO BE NONHAZARDOUS*

(S)

DON’T

Do not live circuits While assembly of all components is not over.

0

DON’T

I Install p«r the National Electrical Code for the US (NEC, ANSl/NFPA 70)

and the Canadian Electrical code for Canada (CEC, CAN/CSA-C22J)*

О

DO

Live part of electric circuit or ^ high temperature department cun

cause explosion.

Protective performance degradation for ha2ardou,s location can

cause explosion.

Unsuitable conduit connections for hazardous location ctm cause
explosion.

Ж CAUTION

■ Do not work on piping and wiring
with wet hands.

Wei hands can cause system
failure,

DON’T

■ Do nut modify or disassemble the
LF494/LF404 unnecessarily.

Modifying or disassembling

1 jj^ this product can cause elcc-

trie shock, malfunction of or

DON’T damage to this produci.

■ Use the proper cables for wiring of
power and I/O .

Using a cable other :han the

уЛ one specified may c^usc sys-

/ J \ tern failure or damage and

may break watcrproul.

Ш Ground the IvF494/LF404 properly*

Operating this product without
a grounding can cau^e system

malfunction.

DO

■ Prepare yourself for the cable glands
which could be used in Division 2
hazardous Incation.s*

The apparatus should not be

provided with the cable glands.

DO

* The label shown left is placed

Л\ near the terminal board for

/ power input.

" * Be alert to electric shock.

- 23 -

TOSHIBA

6F8A0774

I'lowmeter acuumcy may be affccieJ by the way wiring is executed. Proceed with wiring
taking ihc foJIowiJig prccauiions:

(1) Select the cable runs away from electrical equipment (motors, transformers, or

nidio transmitters) which causes electromagnetic or electrostatic interference.

(2) Deteriorarion of fJowmetcr circuit insulation occurs if the converter interior or

cable ends gel w^et or humidified. 'I’his in turn causes malfunction of flowmeter
or noise problems, Avoid a rainy day if the flowmeter is to be installed outdoors,
l-ven indoors, prevent w^ater from splashing over the flowmeter. Try to finish the
W'iring as quickly as possibJe

(3) The converter has a surge-ai>sorbing barrier installed inside. Therefore, do not

conduct a wdthsiand voltage test for Ihe converter. To check ihe insulation of the
converter, use a voltage of 250 V dc or le.ss.

-

24

-

TOSHIBA

5.1 Cables

Use the kind of cables shown in Table 5.1 to vsdre the converter.

Nnme

Power cable

I/O cable The number of wires for the output cable depends on the

Notei Use a four-wire cable if the arresters are to be used. See Figure 5.1 below.

5*2 EtKlernal Device Connections and Grounding

The terminal board comieciion;s of ihe 1T494/LF404 flowmeter are shown in Figure 5.1.

Proceed with wiring as described in Section 5.4, “Wiring Procedure."’

Cable type

Three-wire sheathed
cable (Note)

system specifications. Use a shielded cable with nominaJ
cross-sectional area of 1.25 mm^ and overall diameter of
11 to 15 mm.

Table 5*1 Cables

Nominal

cross-sectional
area

2 mm^

6F8A0774

Overall diameter

11 to 15 mm

If power supply is specified as DC, use LI ds positive (+) and L2 as negative (-) terminals.

Instrument Panel:

ordered separately

Currentoulput (4-20mAde)

Flowmeter

(■*■) Hs)

I LI I l^|FGt|l3tc|[cq*4 rn|noa|DQl| " f ^ I

T

______

^

..................

_____________________

I - ground resistant’^

! ***^ Grounded with 1 OOtior less

. V L>jgita] Output 1
: > ragiu^ O^rtput 2
‘ > Digital Input (20 lo 30 V dc)

1 -

IV wire
5,5mnr
or more

I/O cable

■7:^

W >wcr cable

^ '

' \

Power Switch

*1 To use the arresters, ground the GNI) terminal using the wire shown in broken line.

*2 Locale an cxiernal double-pole power switch on the powder line near the flow'meicr and within easy

operation. Mark one the switch as the disconnecting device for the flowmeter,

Use an appropriate swiicli of the rating shown below:

Recommended sw'ilch rating; Rating 250 V ac, fiA or more

Inrush current 15 A or more

— > pQWCï Supply

Figure 5*1 Terminal Block Connections

-

25

-

TOSHIBA

6F8A07 74

IMPORTANT

(1) The grounding terminal of the LF494/UH04 flo^mEtcr should be grounded with

100 ohm or less ground resiiilance. Use a heavy copper braid or wire

(cross-seciioniil area 5 .5 mn:" minimum) to ground the terminal and make it as
short as possible. The icnninal is M4 size and an M4-sizc crimped ring lug should
be used lo connect the wire to the tenninaU Avoid a common ground where earth
current may flow . An independent ground is preferable^ See Figure

conductive pipeline grounding and noii-conducrive pipeline grounding procedures.

(2) To prevent a wo-poinl grounding, ground the shielded cable on the receiving

inshiimenl side.

5.2 . for a

I If connection pipe is conductive:

Connect between the grounding terminal
and both ends of the mating flanges with
a heavy copper braid or wire
(cross-section 5.5 min‘ minimum).

If connection pipe is non-conductive:

Use a heavy copper braid or wire
(cross-scciiiin 5.5 mm^ minimum) to
ground he terminal with UK) ohm or
less ground resistance*

Figure 5.2 Grounding Procedure

- 26 -

TOSHIBA

53 Digital I/O Connections

Digital I/O icrmmEils cottsiM ol conlact oulpul lerniiiials (jilatidard DOl Eind optional

D02), voJlage signal input terminal (Dl, opcioiial), and signal common terminal {COM).
Hach terminal (DOl, D02 and DI) is isolated from internal circuits. Terminal (COM) is
the signal common for the other three terminals {DOl, DOl and DI).
Functions can be assigned for each xnninal with Ihe LCD control keys (option). See
Chapter 10, ‘‘Digital I/O Functions/
To connect an electromagnetic relay ot counter lo the contact output tcrrtiinal (DOl or 1>02)^
put a surge-absorbing diode into the input circuil of the relay or counter. See Figure 5.3 for
an example of electromagnetic counter connection,

6F8A0774

Note I: Use a surge-absorbing diode of the rating: current rating lAand voltage rating

200 V minimum.

Note 2: The Solidstaie relay, photo-coupler and resistor are not provided for the standard

model (the one whth no digital I/O specifications). l.eavc the terminals for D02 and

Dl open.

Figure 5.3 Electromagnetic Counter Connection Exntnple

- 27 -

TOSHIBA

S.4 Wiring Procedure

5A1 Cable Terminationi

6F8A0774

Cable termination and cable connections are described below.

A CAUTION

■ Ho not con d net w i ri n g work wt e n ■ Eto not w'ork on piping and wiring
power is applied.

Wiring while power is ap-

1 plied can cause clccinc 1 electric shock.

shock.

DONT DONT

IMPORTANT

Ttic apparatus should not be provided with the cable glands.
Please prepare yourself for the cable glands which could be used in Division2 hazardous
locations.

with wet hands.

Wet hands may result in

Use cables as specified in Table 5.1 ^ First, Remove the cable sheath about 70 mm from the
end to expose the coated wires and then strip the wires about 10 [nm. Then attach an
M4-sis:e compression terminal lug to the end of each wire using a compression tool. The
compression terminal should be of Ihe kind with insulated sleeve to prevent shorts between
adjacent terminals. The overall length oi thc wire with the terminal attached should be about

6(.) nmi. Sec Figure .‘5,4 below,

M4-sizc compression terminal lug

- 28 -

TOSHIBA

5A2 Cable Connections

6F8A0774

Connect the term incited cable wires to the terminal board as described below.

IMPORTANT

Connect the wires securely to :hc terminal board. A loose connection may result in
unsaiisfacLory flowmeter performance. Make sure the wires arc securely connected.

(J) Remove the housing cover for the terminal board shown in Figure 3.1. The terminal board

is located inside the converter as shown in Figure 3,2. Connect the crimped terminal of
each wire to the specified pin of the terminal board . See Figure 5.1 for the terminal board
configuration, Tighten each crimped terminal to the terminal board wiih a screw using a
l*hil!ips screwdriver as shown in Figure 5.6. Loose connection may result in unsatisfactory
flowmeter performance. Make sure the wire is securely connected.

NOTE

ITic appropriate torque for tightening the terminal board screws is J .2 Ntn (12 kgf- cm).

(2) After the terminal block connecriorij pull the cable a little so that the cable runs straight

from (he terminal block without unnecessary winding.

(3) Attach the terminal cover and screw the housing cover for the terminal block. To keep the

housing seal, lighten securely the cover using a tool fitting with the groove on the cover

- 2& -

TOSHIBA

6. Operation

6F8A0774

A CAUTION

Do not touch the LF494/LF404 main body when
high temperature fluid i.s beii^ measured.

Thc fluid raises the main

Q

DONT

6*1 Preparatory cheek

Follow the procedure described below to prepare before starting the (low tneasurerrienl.

System Check

Check the wiring between the converter and related instruments.
Make sure all Ihc bolts of connection flanges on which the flowmeter is mounted

securdy tightened.

body tempera lure and can
cause burns when touched.

Make sure the direction of flow arrow is in accordance with actual flow.
Make sure the flowmeter is grounded with IDO ohm or less ground resistance.
Make sure the converter housing covers are securely tightened.

Placing System On-Stream

l.ct the fluid go through the delector pipe. When the detector is filled with the

fluid, stop the fluid and keep it still in Ihc detector pipe.

Supplying Electric Power

Make sure the powder supply is as specified.

Checking Converter Parameters

Check the configuration parameter settings, Refer to Chapter 7, "LCD Display

and Controls,” Chapter 8, “Configuration Parameter Selling/’ and Chapter 11,

“Communications Function/'

Zero Adjustment

Wail for 30 minutes to warm up the flowmeter, 1 hen making sure the fluid holds
still in the detector pipe, starts the zero adjustment.
Refer to 6,2, “Zero Adjustment.’"

On line measurement

After checking the items and conducting the ze ro adjustment as listed above, let the fluid go
through the detector pipe. Output (4-20 mA dc) directly proportional to the flow rale can be
obtained.

30 -

TOSHIBA

6F8A0774.

62 Zero Adjustment

To conduct zero adjustment of the flowmeter, the fluid in ihc detector pipe must be held stilL
There are three different ways to start the ^ero adjusimeni:

(1) I^essingthe zero adjustment switch for the model without IX^D display

(2) Pressing a combination of control keys for the model with LCD display

(sec 8.2.8, ‘Zero Adjustment ’)

(2) Sending a command signal from a HAR'l’ communications device

(such as the AFIOO hand-held terminal).
The follow'ing is the procedure for starting the zero adjustment for the model without LCD
display.

■ J’ress the zero adjustment switch for more than 3 seconds.

(Note [hat once the zero adjustment is started, there is no way to caitceJ the zero

adjuslmem sequence.)

Then the LHD indicator lights and [he zero adjustment sequence will start. 1 he zero

adjustment sequence lasts about 3 to 6 seconds. (Zero adjusimcrit duration depends on
the excitation current frequency. Jl lakes about 3 seconds for 24 Hz setting and about 6
seconds for 12 Hz and 6 Hz settings.)

When the zero adjustment sequence ends, the LliD indicator goes off.

To conduct the zero adjustment, it is necessary to open the converter housing cover for

inicmaJ electronics and press the switch. Observe the following precautions when you

open the hou.sittg cover:

(1) Do not open the cover in the open air unprotected against rain or wind.

It you adjvist the ilowiucier in the rain, this can cau^e electric shock or damage to the
flowmeicr electronics. If wind blows against the internal circuitry of the converter, output
may fluctuate and fail to indicate correct measuring values.

(2) l>o not conduct the zero adjustment when the amhieni humidity is high, By opening the

cover in high humidity conditions, the measuring accuracy may he reduced or damage
caused to the flowmeter electronics.

- 31

TOSHIBA

1, LCD Display and Controls (option)

You can select the operation modCj change the configuration pariinictcrs or cxeculc
operation-specific functions using the control keys on the panel. How to operate these
keys is described in this chapter.

7.1 Outline

The LF404 Converter has an optional LCD display. The LCD display can be used to set and

indicate various configuration parameters, Figure 7.1 shows the front view of LCD display.

(1) Do not open the housing cover for LCD display in the open air unprotected against rain or

wind. If you open the housing cover for LCD display in the rain, ii can cause electric
shock or damage to the flowmeter electronics. If wind blows against ihc internal circuitry
of the converter, the output may fluctuate and fails to indicate correct measuring values.

(2) Du not open the housing cover for LCD display w'hen the ambient humidity is higli.

I3y opening The cover in high huraidity conditions, the measuring accuracy may be re

duced or damage caused to the flewmeiei electronics,

6F8A0774

Housing cover for

'^LCD display

Figure 7.1 LF404 Converter with LCD display

LCD display

A 2-linc X 16-character liquid crystal display. 1 he backlit display enables an easy-to-read
indication even under poor lighting conditions. Instantaneous flow rates or totalized How in
the measurement mode, or configuration parameters in the setling mode can be displayed.

- 32 -

TOSHIBA

6F8A0774

■ Control Keys

Changing the operation mode, checking or changing parameters can be done with these keys.
To operate these keys, you have to open the converter housing cover. Observe the following
precautions when you open the housing cover:

rnnetions of each control key when pressed are shown in the table l>clow.

Control keys

SET

□

Basic functions of control keys

Oocs into the iteins sdeetion aeijucTice.

K, 00 n/s

lit). 0 Ï

Ones into the dct^Mcel-ltcni specifying sequence for each selcctetl iicin in
measarement, setting or calihralion modes.

Al :£i, CJRR.

1—\
'

-------

Al'.EX. CUftR

/

.selection sequence

A1:EX. CURB,

0

selection sequence

Stores the sclcct2:<j Juta in the setting mode.

Bl:UfllT 1

%

status of chairging the data

Changes itenrs (alphabet letter and number) in the items selection sequence,
and changes parameters (numbers andi'or units) in the detailed-item specifying
sequence in measurcnient« selling nr calibration nnodes.

C2:RA^G£ 1

02. 000 in/s

r—N

date;[J,2UUOm/s

Starts and stops the totali/er in the incasurement mode.

F lOCO

100.0 %

step the totali/cr

Changes digits (alphabet letter and number) in the items selection sequence,
and starts the detailed-item specifying sequence by indicating the left-most
digit with the cursor

D1: DAMPING

_______

,

-----

w

\

00 s s

setting mode siaitjs of finish changing

Moves the cursor frocn Ictl Iti right (from the right end reverts to the left end) in

measurement mode

B1 :UNIT 1

%

Status of finish changing

C?:RANGE 1

03. OOO ñ/%
darctoOOOm/s

(Note)

F

tool ID' C

1ÛR. 0 %

start the totalizer

D1 : DAHPINO

00. 5 S

►

□

Resets the iotaligcr in the measurenient cnodc. (Nutgl

Note: To operate the totalizer, it is preterabk U> set the indicating unit (UNIT I and/or UNIT 2)

to one of the units appropriate for totalization just to make sure it is operating eorreclly.
See 10.2, "Totalizer and Pulse Output/'

Gl : COUNT RATE

1. 23£-4

Indicate cursor un^er ‘ I ’

F '000 C

00. 0 1£

start the tiitaiizer

- 33 -

1—A

*

—/

1

----

1—/

Cl: COUNT SATE

[. 23E-4 m’

Indicate cursor under

0 m*

F

\

TOO 0 X

reset the totalizer

c

TOSHIBA

7.2 Display Format

6 F8 AO 7 7.4

In ihe me-isurcment mode» measured data are displayed in UNIT 1 (primary indioaling unit)

and UNIT 2 (secondary indicating unit). As to indicating units, see 8.2,4, ‘"Indicating Unit '’

Display Format

DisSplayed in UNIT 1 indicating unit.

I— *‘C ' indicated when lotfd tlow is cc>unted.

IF 10 0 0 0 0

10 0.0 %

____________-¿L.

M Measured Value Display Format

(1) Flow rate

_

___

Upper 4 digits maximum arc cTfcctive (for the selected span).

r

")

“ C ’’ is indicated when

communication is in progress.

I b t

I C

L _ - .

Displayed in UNIT 2 indicating unit.

'The unit of time

-The unit of flow
‘7 digits (9999999) maximum including decimal

point

'Flow direction: Forward “ (blank space);

Reverse “

-

34

-

TOSHIBA

(2) Totiìlizer

F 9 9 9 9 9 9 9 S C

I I I I- ..............................................................

(3) Volumetric flow

F 9 9 9 . 9 9 ml

I J I.......................................

.....

I

LJ

6F8A0774

L- “C” is indtcaietj when (oial tlow in counted

Increments per cnunling rale, Refer (o

8.2.10, '"Counting Rate/’
Wrapfi iirounci after 99yy9y99.

“F’ for forward and “R" for reverac direction ilow
will be displayed

Displays down [o the smallest digit of counting rale.

J_

^ "'C” is indicated when volumetric flow is counted.

— The unit of flow

N) % display

-10 0.0 %

..................................................

.....

1 1 J

-

--------

8 digits (999^9^99) maximum including decimal

point
If (he flow count exceeds 999 99 9 99 , wraps around.

"F" for forward and “R” for reverse direciion

flow will displayed.

Displayed dowm to i).l %.

Displays up to 125.0 %.

— Plow direction: Fomard " “ (blank space);

Reverse

- 3i

TOSHIBA

6F8A0774

13 Itasic operations

How measurement in the mcasuicinent mode, checking or changing configuration
parameters in the setting mode and a converter unit check in the calibration mode arc
the basic operations of the LF404 converter

7J,1 Mode Change

The Lr404 converter has three operation modes: measurement, setting and calibration.
The system stays in the measurement mode after the power is turned on. To change the

mode to the selling or calibration mode, press [SET] and select the desired item using
( ► ] and [ A. ] keys. To return to the measurement mode, scJect “tP (MliASURH
MODE) for the number column of configuration items (such as AO or BO), Sec 7.4,

“Configuration Items Selection Table.”

■ Measurement mode

: measures the process flow and displays and outputs the measured process values, The

flowmeter can measure the flow velocity, flow rates, or totalised How, The flowmeter

first goes into this mode when power is turned on.

Setting mode

r used Lo check or change various configuration parameters used in the measurement

mode. These parameter values are displayed while checking or changing these values
hut the flowmeter outputs the measured process values as in the measurement mode.
See 7.4, "Configuration items Selection Table” and S.2, “Checking or Changing
Parameters” for details. Configuration items are from A1, A2, A3 to Ml.

Cnlibration mode

: used to check the converter internal circuits. The intemally generated simulation signal

is used to check the measurin| span and excitation current value. The current output of
the flowmeter changes in accordance with the simulation signal. The status of each
digital output is held to the value just before the .system moved into the calibration
mode. See 7,4, ^'Configuration Items Selection Table” and Chapter 9, “Calibration” for
details. Configuration items are from M lo N4,

-

36

-

TOSHIBA

Change mode flow

SET A ^

□ □□ arc sJiown tQ control keys, anti LF404 display is changed lo

6F8A0774

------------

Measurement mode

^ indicaied.

-

37

-

TOSHIBA

6F8A0.7.7 4

7.3.2 ConflguriitioTi Parameter Selecticin in Setting and Calibration Modes

Process as follows lo select the desired items, to chock or change the item setting value,

■ To selticts the desired item :

Key operation

SET

□

▲

□

►

□

□□

Display example Description

10. 00 rci/s

Measure value displays.(Mcasurcmcnto mode)

100. 0 %

Al: EX. CURR,

Bl; UNIT!

Bl; UNIT!

C2; RANGE 1

Pressing [SILT], the system changes to the items
selection sequence. (Note)
And the cursor appears under alphabet (A),

Change the alphabet to ''E” by pressing [ ^ ].

* If cursor is tile number, the number is increased

by pressing [a ].

Then move the cursor (o the number by pressing

[ ► ]
* If cursor is the number, the cursor is

changed to the alphabet by pressing f ► ],

Selects the desired item (indicated by an
alphabet letter and a number) first by selecting
llie digit (alphabet or number) with [ ► ] and
then changing the value with ( a ].

The example shows “C2: RANGE V’

Note: In case of that the convrtcr is type for special specifications and seitcd password^

changing measurement mode to items selection sequence, password-input mode appears.

See 7,5"Password Ltput ‘for details about Password-input mode
Sec 7,3.3 ’’Converter for Special spccifications”for to differentiate the converter for
special specifications and normal.

- 33 -

TOSHIBA

6F8A0774

To change the setting value:

Key operation

^ ►

□ □

SKY

□

□

: □

►

□

Display example Description

Items selection sequence displays.

C?: RAWGE 1

Selects the desired item (indicated by an
alphabet letter and a number) first by selecting the
digit (alphabet or number) with [ ► ] and then
changing the value w'ith [▲ j.The example shows

“C2:RANGE 1 '
Press [SET] to vSelect the desired item setting

C2; RANGE 1

02. 000 n/s

value. And the cursor disappears and the item
setting value displays.
You can check it.

C2: RANGE 1

02. 000 m/s

C2; RANGE 1

¡2. 000 m/s

C2: RANGE 1

12. 000 m/s

Pressing [ ► ), the cursor appears.
Parameter changing sequence

Change the value by pressing ].

Then move the cursor to another digit by pressing

[ ► 1-

Change the value by pressing Then move

□ □

▲ ►

C2: RANGE 1

05. 000 m/s

the CLirsor to another digit by pressing [ ► j and
change the value.
In This example repeal (his prercess tmiil the
display shows "'05. ODOm/s

5ET

C2: RANGE 1

05. 000 m/s

▲

C2: RANGE 1

02. OOO m/s

i

S\:y

C2: RANGE 1

05. 000 m/s

□

Бу pressig [SET], flickers the selected value to

confirm changes made for the selected item.

By pressing [-^1» to return to the parameter

changing sequence.

By pressing [SE'l 1, stores the indicated value and

Slop flickering of data.

-

39

-

TOSHIBA

6F8A0774

To return the measurement value:

Key operation Display exampJe Description

SET

□

i

►

□

▲

□

□ □

C2: RANGE 1

0. 5000 m/s

C2: RANGE 1

C2; RANGE 1

C3: RANGE 1

CO . MEAS. MODE

Checking the setting value or after setted the
value.

By pressing [Sii.T], return to the items selection
sequence.

Items selection sequence displays.

Then move Ihe cursor to the number bv pressing

[ ► ]

* If cursor is the number, the number is changed

to the alphabet by pressing [ ► ].

Change the alphabet to ‘‘B” by pressing [ a ].

** If cursor is the number, the number is

increased by pressing [ ^ ].

By pressing [ ► ] and [ A ], select

-0:MEAS, MODE"
Ttie example shows “CO: HEAS MODE'’

SET

□

10. 00 m/s

TOO. 0 %

- 40 -

Pressing [SE'r], returns to measurement mode.

TOSHIBA

6F8A0774

7<3<3 Converter for Speciii) pacifications

The converter for special specifications is added some setting parameters. To

differentiate the converter for special specifications and normal, remove housing
cover for the tcrminii] txiard shown in Figure7.2. The converter marked as shown
in Figure 7.2 is for special specificationsj and non^marked is normal.

The added setting parameters are following items.

(1) Password input/scuing
(2) 4-20mA alarm out setting
(3) DI detective level setting

(4) Preset function

See 8.2, “Checking or Changing Parameters’' for details.

Hxample; F400 0113

Figure 7.2 LF404 Cotiveiter for special specifications

- 41 -

TOSHIBA

7.4 Configuration Items (Selection Table

6F8A0774

In the setting and calibration modess configuration items can be selected as shown beJow. For

exampie, the excitation current can be selected by the item AJ, To change the parameters for

the selected items, see the following chapters. To return to the measurement mode, select "‘0”

for the number (such as AÜ).

Setting mode items (Al, A2, A3 to Ml): See Chapter 8, “Configuration Parameter Set ling. ’

Calibration mode item (N1 to N4): See Chapter 9, ^'Calibration.”

A n

B *1

c n

D M

E *1

F n

G

If

1

0

1

Kxeitatiun Cur*
rent *2

Indicating
Unit 1
Range T ype

*2

Damping
Constant
Zem
Adjust me 111

DOl Function

*2

Couniing Rale

*1

*2

PfCSCl Count

*2

High Alarm Set *2High Alarm

2

Meter Size

Indicating
Unit 2

Range ]

Low Cutoff

D02 Function

Pulse Widlh

Preset Punct

Value *2

*■2

3 4

Excitatioc Fre
quency *2

Range 2

"2

4-20 mA Aim.
Output '‘2

D[ Funciien

*2

•2

Low' A lam Set “2Low Alarm

"2

Password

Range 3

DOl Alarm
Active Set *2

Value *2

*2

5

Range 4

D02 Alarm

Active Set *2

*2

6

Range

Hysteresis *2

DI Det. Level

^2

J

K

L n

M n

N *1

Empty Pipe

*1

Alarm

*l

Rtite-of­ehangc Limit
Fixed‘Value

Output *2
Zero Offset

Adjustment
Flow Rate
Cal *1

Control
Limit I’ime
Fixcd-currcnl

Output *2

Flow Rate

S\g5i)% "2

Fixed-pulse
Output *^2

Flow Rate
Cal H)n% ^2

Exciting
Current Check

*1: Returns to Ihe measurement mode.
"*2:Password-pro(ecied parameter
Note: “A4:Password”, ”n3:4-20Alm.Ou(\ "1’6:D[ Dcl,[x;vel \ and "H2:Freset Fund” are added

parameters in the converter for special specifications.

-

42

-

TOSHfBA

7.5 Password Input

6F8A0774

Password input is ^ddcd parameters in the cenverier for special specifications {refer to

733 “Converter for Special specifieauons”). Only in case of the converter for special

specifications, read thisS section.
The converter for special specifications have the password ,That protects from calibrating and
changing part of parameter that influences mea.surement,.
Sec 7.4 ’Configuration Items Sclecticn Table’" for details of password-protected parameter.

See W.2,17 "'Password” for password selling.

^Setting 4IU0’ to [he password or Ihe normal ainverter (see 7.3.3 "Converter for Special

specifications"), password input mode does not appear and all configuration parameter
and calibrate can be changed,

■ To input password:

The following example shows how to input password ,123.

Key operatiort

Displsiy example

De$(cription

SET

□

▲

□

□ □

SET

SET

□

lO. 00 jn/s

IDO. 0 %

PASSWORD INPUT

DOO

PASSWORD INPUT

100

PASSWORD INPUT

m

120

123

PASSWORD INPUT

123

A1: EJ{. CURR.

Measure value displays.(Measuremento mode)

Pres^iing [SET], password input mode and the

cursor Eippears,

Change the value by pressing [ a. ],

Move the cursor to another digit by prc.ssing
f ► ] and change the value by premising [ a j.

In this example repeat this process until the dis
play shows "T23h"

Pressing [SET], the cursor disappears and the
changed display flickers. Press [SET] again to
input the value.

Whether input password agrees or dose not agree ,

the items selection sequence, "AT :EX. CURR” ap

pears.

Eui if input password docs not agree, you can not
change setting parameter and calibrate.
See 7.4 ’’Configuration Hems Selection Table” for
details.

- 43 -

TOSHIBA

8. Configuratiim Parameter Setting

8»1 Configuration Items

To check or change parameters, first sdcci the desired configuration item as described in
7,3,2. The configuration items are Jisted below, Sec each section for detailed procedure.

6F8A0774

Section Configuration item

8.2.1

S.2 .2 Meter Size

8.2.3
8,2.4

8.2.5

8.2.6

8.2.7 Low Cutoff

8.2,8

8,2,9 Digital I/O

Excitation Current

Excitation Frequency

Indicating unit
Range Type
Span (range)

Hysteresis
Damping Constant

Zero Adiustment

8.2.tt> Couniing Rate

Pulse Width

8,2.11 Preset Count

8,2,12

8.2,13

8.2,14

8.2.15

8.2.16

8.2.17

8.2.18

8.2.19

8,2,20

High/Low Alarm
Alarm Limit Value
Empty Pipe Alarm
Ratc-of ehange Limit
Control Limit Time
Fixed‘Value OiKpul

Zero Offset Adjustment

Password *
4-20inA Alarm Output '*
DT detective Level

Preset Function *

Display example

Al: EX. CURR.

A2: meter SIZE

A3: EX. FREQ.
Bl: UNIT 1

Cl: RANGE TYPE
C2: RANGE 1
C

6; RANGE HYST

D1: DAMPING 05.0 s
D2: LOW CUT

El; ZERO ADJUST. 0. 1 %

FI; DOl FUNCT, 1: H ALM
Gl; COUNT RATE

G2: PLS. INIDTH
HI; PRESET COUNT

11: H. ALARM SET
12: H. ALARM VAL

Jl; EMPTY ALM
K1; LIMIT RATE

KZ: LIMIT TIME
Li: FIXED OUT

Ml: MANUAL ZERO -000 1 %

A4: PASSWORD 123

D3; 4-20 ALM. OUT 1 ;4. 0mA

F6; Dl DET LEVEL

H2: PRESET FUMCT

0. 2100 A

LSINGLE

01, 000 m/s

05. 0 %

05. 0 %

G. OOE-U

020 ms

00009000

flOO. Q %

0;OFF

05. 5 %

1 : H LEVEL

0:H0LD

50 m

24 Hz

ON

01 s

OFF

m/s

Page

45
47

49
51
55

63
65
67

68

71

74
76

79
82

85
89
91
95
97
99

"A4:Password^ ”D3:4-30ALM.OL T6;DI DP'rLEVHL", and ■H2:PRtiSHT

FUNCT'' arc added parameters in the converter for special specifications (refer to
7,3.3 ‘"Converter for Special specifications’'). The normal converter does not have

these selling parameters.

-

44

-

TOSHIBA

8.2 Checking or Changing Parameters

6F8A0774

8.2.1 Excitation Current

Proceed üs follows to check or change ibe excitation current setting value.

■ To check the exciting current setting value:

Key operation

SET

□

SET

□

Display example

A1: EX. CURR.

0. ?100A

A1; EX. CURR.

Description
Press [SFT] first to start the items selection sequence

and select Air EX. CURR from among the
configuration items asing [ ► ] and [ a. ] keys.

Then press [SET] again to display the exciting

current setting value.

Pressing [SET], the system returns lo the items
selection sequence.

- 45 -

TOSHIBA

IMPORTANT

The exciting currenl value h factory iset when shipped. Do nol change the value unless the value

dilTers from that wriiieii on tlie nameplate of the fiowmeter,

6F8A0774

■ To chitrige the excitation current iictting value:

I’he following example shows how' ro change the excitation current setting value
from 0.1900AIO 0.2150A,

Key openïlJun

SET

□
□

□□

SET

□

SET

□

Display example

A1: EX. CURH.

D. TgOOA

A1: EX. сияя.

0. 19Û0A

AT: EX. CURH,

0. 2900A

0. 2iOOA

0. 2150A

AT; £X. CURR,

0. 2T5DA

Al: EX. CURR.

Description
Press [SET] first to start the itemsS selection

sequence and select Al: EX. CDRR from among
the configuration items using [ ► ]and[A]keys.

Then press [SET] again to display the excitation
current setting value (0.1900 A in this example).

Pressing [ ► ], the cursor appears. 'I'hen press [ ► )
as many times as necessary' to move the cursor to the
digit to be changed.

Change the value by pressing [ a J, I’hcn move the

cursor to another digit by pressing [ ► ] and change
the value, In this example repeat this process until the

display shows “0.215ÜA.” (Note)
Pressing ]SET], the cursor disappears and the

changed display flickers. Press [SET] again to save
the value.

Pressing [SET], the system returns to the item.s

■¡election sequence.

Note: The valid range is from O.OfiOOA to 0.2300A. If you try to set the value altove

(].24tlOAj the error messsage * H. OVER SPhC appears. Set the value within the valid
range.

—

45

—

TOSHIBA

6F8A0774

8.2,2 Meter Si^e

Proceed as folJows lo check or change the meter si7e of ihc cictecior.

■ To check Che meter size:

Key operation Display exjimple

SET

A2: METER SIZE

□

SET

A2: HETER SEZE

50 m

□

Description
Press [SET] first to start the items selection sequence

and select A2: METER SIZE from among the

cojifiguralitm items using [ ► ] and [ a ] keys Then
press [SET] again to display the current meter size.

Pressing [SET], the system returns to the iiems

selection sequence.

- A 7 -

TOSHIBA

6F8A0774,

To change the meter ssize:

IMPORTANT

Meter sii^e iii 1 actory set when shipped. Do not change the meter size unless it differs
from the specified value.

The following example shows how lo change The meter size from 5f) mm to 100 mm.

Key operation

SET

□

□

▲

□

SET

□

SET

n

Display example

A2; METER SIZE

50 nur

M: METER SIZE

50 nut

AZ: METER SIZE

100 inin

KZ\ METER SIZE

100 mm

AZ: METER SIZE

Description
Press [SET| first to start the uems selection

sequence and select A2: METERSIZE from among
the configuration items using [ ► ]and[A]keys.

Press [SET] again to display the current meter size
fSO mm ill this e.xample).

Pressing [ ► ], the cursor apijcars.

Select "‘100 mm” by pressing [ a ] as many times
as necessary. (Note)

Pressing [SET], the cursor disappears and the changed
display flickers. Press [SET] again to save the value.

Pressing [SET], the system relurns to the items

selection sequence.

Note: The meter size is changed as shown below by pressing [ a ],

2.5 mm 15 mm “► 100 iiiin f^iXl mm —►0.1 in 0,5 in^4 in • 24 in

c:

Tf the meter size has been changed, other setting values (such as span and counting rate)
will be affected depending on the measuring unit u.sed. therefore, check those setting

values if you have changed the meter size,

- 43

□

TOSHIBA

6F8A0774

8.2.3 Excitation Frequency

Proceed aii follows lo check or change the excitation frequency.

■ To check the excitation frequencyr

Key operation

SET

□

SET

n
t

___

1

Display example Description

Press [SEl’l first to start the items selection

A3: EX. FREQ.

24 Hz

A3: EX. FREQ.

sequence and select A3: EX. FREQ, from among
the coniigutation items using [ ► ] and [ ^ ]

keys. Then press [SET] again to display the

current excitation frequency.

Pressing [SET], the system returns to the items
selection sequence.

- 49 -

TOSHIBA

6F8A0774

To change the excitation frequency:
The excitation frequency can be selected from f>, 12 and 24 Hz- T he characteristics of

the ilÜWmeter change in accordance with the seiected frequency as shown below. 24 J lx
is the défailli setting when shipped from the factory.

Kxcitation frequency

Zero point stability Good

Response time

Fluid noise resistant

i’he following example show's how to change the excitation frequency from 24 ll2 to 12 Hz,

Key operation

SHT

►

Display example Description

A3: EX. FREg.

A3: EX. FREQ.

□

24 Hz

24 Hz

12 Hz

Press [SE'J ] First to start the items selection sequence

and select A3: EX* FREQ, from among the
configuration items using [ ► ] and [ a ] keys. Press

[SET] again to display the current excitation frequency
f24 JIz in this example).

Pressing [ ► ], the cursor appears.

24 Hz

▲

n

SET

□

SET

□

A3: EX. FREQ.

12 Hz

A3: EX. FREQ.

12 Hz

A3: EX. FREQ.

Select "T2 Hz'' by pressing [a j twice. The
excitation frequency changes as follows:

6 Hz 12 Hz -►24 Hz —1

Pressing [SFTJj the cursor disappears and the changed
display flickers, Press [SET] again to save the value.

Pressing [SET], [he syslem returns to the items

selection sequence,

- 5D -

TOSHIBA

S.2.4 Indic^tting Unit

6F8A0774

You can select one of the 29 engineering units lisled below as an indicating unil,

• Flow velocity: m/s, (ft/sj

• Flow rate: m-Vs, mVmin, mVd

l/s> 1/min, i/h, 1/d

mf/s» ml/minT ml/h, ml/d

(bbi/s), (hbJ/min), (bbl/h), (bbl/d)

(gal/s), (gal/min), (gdl/Ji), (gitl/d)

• Volumetric ilowi m^ I, ml, (gal)

(totalized flow)

• Other units: %> COL'NT (lotdlized flow wiihoul a unit), RANGE (1 to 4)
(• Code of volumetric

flow direction: F(fixcd forw ard flow)> R(fixcd reverse flow),

n(automa(ic selection bi-directional flow) )

Notes

L Units in parentheses, such as ‘W’, ‘"gal” and “ft” are shown only when the meter size is

selected in inches. They are nof sliown when the mcler size is selected in mm.

2. If COUNT or RANGE is selected, the display is shown as followii:

COUNT: displays totalized How counts (8 digits) without a unit.

RANGE: displays the range njmbcr(l to 4).

3. Only in case of the converter for special specifications (refer to 7,3,3 “Converter for
Special specifications”),

•Time units /d, and flow rate uni is bbl/s, bbl/min, bbUh. bbl/d, bb( can be ,selected*

•Code of volutuctric flow direction F(fixed forward flow)^ R(fixed reverse flow),
ll(autoinaiic selection bi-dircctional flow) can be selected,

Two indicating unils (primary unit: UNIT 1, secondary unit: UNIT 2) can l?e selected.
Proceed as follows to check or change these two indicating units.

- 51 -

TOSHIBA

6F8A0774,

To check the indicating units:

Key operation

SEI

□

SET’

n

1__1

Primary indicating unii and secondary indJcaling unit can be sdecied by ihe following

configurailon items:

01: UNIT 1 primary indicating uni:
B2; UNIT 2 secondary indicating unit

Display example

B1: UNIT 1

%

B1: UNIT 1

Description
Press [SET] first to siarl the items selection

sequence and select Bl: UNIT 1 from among the

configuration items using [ ► ] and [a ] keys.
Then press fSHT] again to display the current

primary indicatiriii uniL

Pressing [SUT], the system returns to the items

selection sequence.

- 52 -

TOSHIBA

6F8A0774

■ Ti) change the mdicating unit 11):

The following exiimple shows how to change the primary indicating unit from % to ml/s.

Key operation

SET

□

►

□

▲

1

---

1

U

► Bl: UNIT 1

□

▲

1—1

Display example

Bl: UNIT 1

\

ei: UNIT 1

%

Bl; UNIT 1

n( B

ml _ B

Bl: UNIT 1

nl/s

Description
Press [St'l] first to Stan the items selection sequence

to select Bl: UMT1 from among the conllguration
items using [ ► ] and [ a. ] keys Then press [SF.TJ

again to display the current primary indicatingunit {%
in this example).

Pressing [ ► j, the cursor appears,

Select ‘‘mi” as the first unit of primary indicating unit
by pressing 1 J as many limes as necessary. (Notcl)

Pressing [ ► ], the cursor moves to the second unit

(lime unit) of primary indicating unit.

Select *‘s” as the second unit (time un it) of primary
indicating unit by pressing f ^ ] as many times as

necessary. (Note 2)

SET

□

SET

n

Notes: l.The first unit (volumetric units etc.) changes us shown; below;

Bl: UNIT 1

n!/s

Bl: UNIT 1

I

------

► %

---------

I

----

‘ RANGH^^

Units in parentheses, sSuch as "bhr\ “gal’ and “ft” ate shown only when the

meter size is seiccicd in inches. They are not shown when the meter sii:c is
sciccteci in mm.

E^ressing (SET’], the cursor disappears and the changed

display flickers. Press [SET] again to save the unit.

Pressing [SET], the system returns to the item

selection sequence.

► in^

------

► i-------—► ml

----

COUNT*— (ft/s)^

---------

---------

m/s+

--------

2. rhe second unit (time unit) changes as shown below;

—► /s------► /min

-----

^/h

-----------

/d

------------- ---------------

► (bbJ)—

(gal>i-

- 53 -

TOSHIBA

6F8A0774,

I To chiingo the mdiciitiag unit (2):

Only in case of the convcacc lor special specifications (refer to 7,33 ^‘Converter for
Special specificaiions’'), Code of vciumctric flow direction F(fi>ced forward flow),
R(fixed reverse flow'), B(auiomatic selection bi-directional flow) can be selected,
In case of normal converter* the code of volumetric flow direction does not appear.

The following example shows how to change the primary indicating unit from F to K,

Key operation

Sb'l

□

□

►

I

_ _

1

►

□

▲

□

Display example

Bl: UNIT 1

Bl: UNIT 1

m* F

Bl: UNIT 1

m’ _ F

Bl: UNIT 1

Bl: UNIT 1

m' R

HI r

Description
Press [SET] first to start the items selection sequence

to select Bl: UNIT I from among the configuration

F

r

items using ( ► ] and [ a ] keys 1 hen press [Sbri ]

again to display the current primary indicating unit (ni^
F in this example).

Pressing [ ► ], the cursor appears.

Pressing [ ► ], the cursor moves to the second unit

(time unit) of primary indicating unit.

Pressing 1 ► ], the cursor moves to the third unit
(code of volumetric flow direction) of primary
indicating unit.

Select “R’' as the third unit (code of volumetric flow
direction) of primary indicating unit by pressing [,^)

as many times as necessary', (Note 1)

SE'T

Bl ■ UNIT 1

□

SCI'

Bl: UNIT 1

n* R

□

Notes. I’ho third unit (code of volumetric flow direction) changes a^s shown below':

13

-----

Pressing ÍSE T), the cursor disappears and the changed

display dickers. Press [SE%T ] again to save the unit.

Pressing |SET], the system returns to the item

s-election sequence.

*■ F

--------

-

54

-

► K

------

TOSHIBA

6F8A0774

8.2*5 Span (range)

You CiUi set ihc followingconstaiUsin this setting item:

(1) , Range type
(2) . Span
(3) , Unit of span (can he changed only in range 1)
(4) . Hysteresis

(I) Range type

You can select a single range or mu.tiple ranges. 4Select one from five types shown below.

Ranee type

1. SINGLE

2. 4F-0R

3. 2F-2R

4. EXT. 2F-0R

5. EXT. 2F-2R

Description
Single range

Unidirectionaj flow» automatic selection ol muilipJe ranges

IJidirectional flows» automatic selection of multiple ranges

L'nidirectional flow, multiple ranges selected by external signal
Bidirectional Hows, multiple ranges selected by external signal

- 55 ’

TOSHIBA

6F8A0774

(2) Span (riinf>e)

■ Span can be set and dLsplayed as follows for flow velocity and flow' rates:

• Flow velocity: 01,0DD nVs (three digits after the decimal point)

• flow' rales: 2.83E-I-3 m^H (three digits and exponential)

■ Valid range of span is 0.1 m/s to 10 ra^s in Unns of flow velocity.
If yon try to set the span outside of this range, one of the following messages appears:

* H, OVER SPEC, (if the set value exceeds 10 nVs)
* L. OVER SPEC, (if the set value is less than 0.1 m/s)

Try again to set the span within the specified range.

■ When multiple ranges are used, the following must be observed;

• Range 1 > Range 2 > Range 3 > Range 4 (unidirectional flow-, multiple ranges)

• Range 1 > Range 2, Range 3 > Range 4 (bidirectional flows^ multiple ranges)

If you try to set the ranges not conforming to I he above, the following message

appears;

t MULTI RNG ERR

Try again to set the ranges as specified above.

■ Totalization counting rale
If you have changed the span while the couniing rale is set for totalization^ the

counting rate for 100% output may have exceeded the maximum couniing capacity.

[n this kind of evenu the following message appears and the system goes to the

counting rate setting sequence.

i K OVER C RATE or L. OVER C RATE

Set the counting rale (See 8.2.1 O^Counting Ratc"’)for the newly set span.

- 5& -

TOSHIBA

6F8A0774

P) Unît ofsp^m

Onü of the following engineering units as a unit for the span can be selected. The unit is set
for the range I and the same unit applies automatically to other ranges—range 2, range 3
and range 4,

• Flow velocity: m/s, (IVs)

• Flow rate: mVs, mVmin, m^/h, mVd

Us, l/minj :/h, l/d

tnl/s, inly'niin» mUh, ml/d

(bbi/s), (bhl/min), (bbl/h), (ЬЫ/d)

(gal/s), (gal/min), (gal/h), (gal/d)

Units in parentheses, such as "‘bbl”, “gal’’ and ‘Tt” arc shown only when the meter si?:c is
selected in inches. They are not shown when the meter size is selected in mm.

If you change the unit, the new span based on the newly set unit will be automatically
displayed.

Only in case of the converter for special specification,s {refer to 7.3.3 “Converter for Special
specifications "), Time units /d> and flow' rate units bbl/s, bbl/jnin, bbl/h, bbl/d^ bbl can be
selected.

- 57 -

TOSHIBA

6F8A0774

(4) Hysteresis

Tlic hysteresis is the dead band used when multiple ranges arc switched, The hysteresis can
be set from 0 to 25% in increments of 0.1%, The hysteresis setting is needed only when
automatic selection of multiple ranges is used.

['Hie setting sequence]

The following is the ssetting sequence of span (range).

if multtpk range is selected, compulsory range 1 to range 4 ami hysteresis settings are
displayed.

- 58 -

TOSHIBA

6F8A0774

Proceed as follows lo cheek or change each conslant,

> To check each constant:

Key operation Display example

Sl:r

□

SKI

C2: RANGE 1

02. 000 jb/s

CZ: RANGE 1

□

Range type. Span. Hysteresis can be selected by tJie corifigaration items as follows;

Range type Cl; RANGE ПРЕ
Spart of Range 1 C2: RANGE 1
Span of Range 2 C3: RANGE 2
Span of Range. 3 C4; RANGE 3

Span of Range 4 C5; RANGE 4
Hysteresis СБ ; RANGE HYST

Description
Press [SET] first to start the items selection

sequence ami select C2; RANGE 1 from among the

configuration items using [ ► ] and [ ^ ] keys.
Then press [SET] again to display the current

span for Range 1.

Pressing [SET], the system returns to the items

selection sequence.

- 59 -

TOSHIBA

6F8A0774

I'o change the range type:

Range type shimid tx; changed before changing the span.

1'he following example 5hows how' '0 change ihc range type from ! to 3.

Key operation

sn

□

►

▲

□

SET

□

SET

□

Display eTiample

Cl: RANGE TYPE

1:SJNGLE

Cl: RANGE ТУРЕ

i:S)NCLE

Cl: RANGE TYPE

3:2F-ZR

Cl: RANGE TYPE

3:2F‘2H

Cl: RANGE TYPE

Description
Press [SET] first lo stan the items selection sequence

and select Cl: RAKGETYPEfrom among the
configuration items using [ ► J and [ a ] keys. Then

press fSET| again lo display the current range type.

Pressing [ ► j, the cursor appears.

Select Range type 3 (3: 2F-2R) by pressing [ a ] twice.

Pressing [SET], the cursor disappears and the
changed display flickers. Press [SET] again to store
the changed type.

Pressing [SET], the system returns to the items
selection sequence.

- 60 -

TOSHIBA

6F8A0774

To change the span (range):

The following example shows how to change the span of Range I from 2,0 m/s to 100 i/miii-

Key operation

SET

□

►

□

▲

□

►

□

Display example

C2: RANGE 1

02. QOO и/s

C2: RANGE 1

02, 000 m/s

CZ: RANGE 1
3, 93Ei-0 i/s

2. 36E+2 l/min

C2; RANGE 1

2. 36E+2 l/nin

Description
Press [SHTj first to start the items selection sequence

and seicct C2: ItWCE 1 from among the

configuration items using [ ► ] and [ a. ] keys. Then

press [SET) again to display the current span of Range

1 (2.0 m/s in this example),

Pressing [ ► the cursor appears. Then press [ ► ]
as many times as necessary to move llie cursor to the

position for the measuring unit.

Select‘"i” as the first unit of the measuring unit by

pressing 1 as many times as necessary. (Motel)

Similarly, pressing [ ► ] to move the cursor to the

second unit (lime unit), select “min." (Note 2)
(The displayed span automatically changes in
accordance with the newly selected unit.)

Pre,ss [ ► 1 as many times as necessary to move the

cursor to Ihc digit of span to be dtanged.

□

SH'l’

□

SET

C2: RANGE 1

L 3GE+Z J/tBin

TDOE+2 l/min

C2: RANGE 1

l.OOE+Z l/nin

C2: RANGE 1

Change the value by pressing [ a. j. Then move the

cursor to another digit by preissing [ ► ] and change the
value. Ir\ this example repeat this process until the

display shows “t ,f>0K+2’"(=l00) 1/m.

Pressing [SET), the cursor disappears and the changed
display flickers. Press [SET] again to store the changed
span and unit.

Pressing [SE'l’], the sysicm returns to the items selec

tion sequence.

□

Notes 1» The first utiii of the measuring unit changes as shown below:

-> J

Units in parentheses (bbl, ft and gal) are shown only when the meter size is seiccieci in

inches.

2. The second unit of the measuring unit changes as show n below-

Is ■

---------

How'ever, the following first and second unit combinations cannot be selected: in/mim
m/h, m/d, fl'miii, fi/h, f!/d.

► /min

(ft)

-► ml-

----------

(ЬЫ^

*■ /h—-—► ,/d—I

- e '

TOSHIBA

6F8.A0774

To change the hysteresis:

The hysteresis is seL ai 3% (deiauJl) when shipped from the factory.
The foil owing example shows how to change the hysteresis from 3% to 5% .

Key operation

SCT

□

►

□

►

□

▲

□

SET

□

Display example

C6; RANGE HYST

03. 0

%

C6: RANGE HYST

03.0

%

C6: RANGE HYST

03-0

%

C6: RANGE HYST

05.0

%

C6. RANGE HYST

05.0

%

Description
Press [SHTj first to start ihe items selection sequence

and selccl C6: RANGE HYiil from among the

configuration items using [ ► ] and [ a ] keys. Then
press [SET] again to display the current hysteresis

(3.0% in this exampleV

Pressing [ ► |, the cursor appears*

Press [ ► j to move the cursor to the desired digit to
change.

Change the value to “5" by pressing [ ^ J twice,
(if necessary, move the cursor to another digit and

change the value).(Note)

Pressing [SET]» the cursor disappears and the
changed display flickers. Press [SET] again to store
the changed hysteresis.

SLT

□

Note: If you try to set the hysteresis !itx)ve 25.0 an error messageH, OVER SPEC.’

C6; RANGE HYST

appears. Try again to set the value within the specified range.

Pressing [SET], the system returns to the item selec­lion sequence.

- 62 -

TOSHIBA

S2.6 Damping; Consitaiit

6F8A0774

The damping consiant is used to mcderiiie oulpul fluetuatjons. (fhe larger the damping

constant, (he more the output is dve^aged, Bui tJie response to an input change will be
slower,) The damping coitstant can be set as follows;

0.0 sec, 0.5 sec and I to 60 sec (in increinents of 1 second)

Note; 0.0 see setting will w'ork as equal to 0,1 sec damping constant.

Setting value exceeding 60 sec will be automatically sei to 60 sec.

Proceed as follows to check or change the damping constant.

■ To check the damping constant:

Key operation

SET

□

SFT

j

--------------------

Display example

D1: DAMPING

02. 0 s

D1: DAMPING

Description

Press [SliT] first to start the items selection se

quence and select Dl; DAMPING from among the

configuration items using [ ► ] and [ ^ ] keys.

Then press [SET] again to display the current

damping; constant.
Pressing [SK'l'], the system reuirns to the items

selection .sequence.

-

63

-

TOSHIBA

6F8A0 7 7.4.

I To chan{^e the damping constant:

The foil owing example shows how' ro change the damping consiani from 0.5 sec to 10 sec.

Key operation

SET

□

►

□
□

SET

□

SET

□

Display example

D1: DAMPING

00. 5 s

D1: DAMPING

OQ. 5 s

D1: DAMPING

10. 5 s
10,0 s

01; DAMPING

10. 0 s

D1: DAMPING Pressing [SET], the system returns to the items se

Description
Press [SEP) Urst to start the items selection se

quence and select Dl: DAMPING from among the
configuration items using [ ► ] and [ a ] keys,

Then press [SET] again to display the current

damping constant (0.5 S).

Pressing [ ► ], the cursor appears.
(If necessary, press ( ► | to move the cursor to the
digit to be changed,)

Change the value to “T" by pressing [ a ], Then move
the cursor to atioilicr digit by pressing [ ► ] and

change the value. In this example repeat this process
until the display shows '"10.0 s.'' (Note)
Pressing [SET], the cursor disappears and Ihe

changed display flickers. Press [SET] again to store

[his data.

lection sequence.

-

64

-

TOSHIBA

K.e> operation Display example Description

6F8A0774

Low Cu(off

The low culoff is Lhc value sei jusl above 0% flow' rate. Flow' rates below' this level are
treated as and subsequent outputs as 0% current outptit. I'hc low cutoff can be set from

0 to 10% of the span and in incrementii of 0.1 %,

Proceed as follow's to check or change the low' cutoff value,

■ To check the low cutoff value:

SRT

□

[)2: LO* CUT

Ok 0 %

Press [SliT] first to start the items selection sequence

to select D2: LOW CUT from among the configuration

items using [ ► ] and [ A ] keys. Press [SETj again to

display the current low cutoff value.

Stir

□

U2: LOi CLT

Pressing [SET], the system returns to the items

selection sequence.

-

65

-

TOSHIBA

6F8A0.774

Ta change the Jow cutoff value:

The following example shows how to change the low cutoff value from 1.0 to 3,0 %.

Key operation

SET

□

►

□

▲

□

ST-r

□

SET

□

Di$play example Deiicriptlon

Press [SETj first to start the items Hclcction sequence

Dl: LOW CUT

01.0 %

D2: LOW CUT

01.0 51

D2: LOW CUT

03. 0 %

DZ: LOW CUT

03.0 %

02: LOW CUT

jnd select D2: LOW CUT from among the
configuration items using [ ► ] and [ ^ | keys. Press

[SET] again to display the current low cutoff value

iT,0% in this example).

Pressing [ ► ], the cursor appears. T hen press [ ► ] to

move the cursor to the digit to be changed.

Change the value to *‘3” by pressing [ a ] twice* (Note)

(If necessary* move the cursor to another digit by

pressing [ ► ] and change the value.)

Pressing [SET], the cursor disappears and the changed

display nickers. Press [SET] again to store the value.

Pressing [SETj* the system returns to the ilems

selection sequence.

Note: If you try to set the low' cutoff value above 10 % of ihe span, an error message

i H, OVER SPEC appears. Set the value w'ithin the specified range.

- 66 -

TOSHIBA

S.2.8 Zet4> Adjustment

6F8A0774,

To conduct ihc zero adjustmcitt of ihe tlowmetcr, the fluid in ihe detector pipe must be
held KtilL (if the Quid cannot be stilled by any means, see 8.2.16, "'Zero Offset
Adjusiment ”)

I f) start the /его adjustment, follow the procedure described below.
I he zero adjustment for models without LCD display can be conducted with the switch in

the converter. See 6.2, "Zero Adjustment"’ for details.

Key operation Display example

SET

□

►

□

SET

El: ZERO DJQST

OLO

ADJUST HEADY

OL 1

* ZERO ADJUST

□

El: ZERO ADJUST

00. 0

SET

El: ZERO ADJUST

□

Deiscriptifm

Press [SET] first to start the items selection

ieq u e nee an d чеке 1E1: ZERO ADJUi> Г f rom am ong

Ihe configuration items using [ ► ] and [ a. ] keys.

X

Then press [SET] again lo display the current flow

rate (1.0 % in this example).
Pressing! ► I/'ADJUST READY” appears as shown
left and the system is ready for zero adjustmenl,

%

[Note 1)

Pressing [SET], ZERO ADJUST' appears as
shown left and the system starts the zero adjustment.

The zero adjustment Lakes about 3 to 6 seconds,

[Note 2)

Newly adjusted zero point appears.

%

Pressing [SET], The sy.stem return.s to the items
selection sequence.

Notes

J. I f) cancel (he zero adjustment, press [ ^ ]. The system returns to Ihe poini

where zero point is displayed,

2. Zero adjustment duration depends on the excitation frequency
(24 Hz; 3 see, ] 2 Hz and 6 Hz: rt sec).

-

67

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TOSHIBA

8.2.9 Digital I/O

6F8A0774

You can selcci the various digital J/0 lunctions shown below. See Chapter 10 ,'’Digital
I/O Functions.’' for details.

■ Digital Output Functions (DOl is standard and D02 is optional)

DOlt D02 items Digital output functions
C: NO JSE Not used

1: H ALU High limit alarm output

2: L ALU Low limit alarm output

EMPTr ALU Lmpiy pipe alarm output

4: RNG SIG I Multi-rnngc output No, 1

B: RNG SIG 2

6: PRESET Preset point output

T: CONV. ALH Converter failure alarm output

fl: PULSE OUT Pulse oulput (aulomatic selection bi-directional flow) (Note 1)

9; PULSE OUT FRD.

A: PULSE OUT REV. Pulse oulput (fixed reverse flow') (Note 1)

Note 1: Pulse output Cim be chosen only for D01{8:PLil^E OUT).

In case of the converter for special specifications (refer to 133 “Converter for

Special specifications ’), not only R:PULSE OUT. but also 9:PULSE OUT FRD.

and A:PULSE OUT REV can be selected.

Multi-range output No, 2

Pulse (Hirput (fixed forward flow)

(Note 1)

Digital Input Function (optional)

1)1 TuRCtiuit
0^ HQ USE Not used

1 : C STA/STP 'i’oialixcr Start/Stop

Digital Input funetton

Z: C RES/STA T otal izer Resc(/S( art
1: RANGE SN Remole seleetitm of muíti-Tange

A: ZERO ADJ. Zero acjusimciit .start

S: FIXED OUT Fixed-value output control

- 68 -

TOSHIBA

6F8A0774

Digital Output Active Status { Only tor Alarm outputs )

DOL D02 Items
0: NORyAL CLOSE Norma.; contact dose, Alarm out; contact open ( Note 2)

1r NORMAL OPEN Nornui; contact open, Alarm out; contact close (Mute 2)

Note 2: The coirtacis of Digital outputs are open while the power supply to the cofivericr is off.

Digital Input Detective Level ( Only for Counter Control)

In case cf the couverier for special specifications (refer to 7.3,3 “Converter lor Special
specifications”). Digital Input Detective Level (Only for Counter Control) can be selected.
For deiiiil, see 8.2.19 “Digital Input Detective Level”.

Proceed as follows to check or change the digital I/O functions.
To chock the digital I/O functions:

Key operation Display example

SET

□

SET

FI: DÛT FUNCT.

1;H ALM

FI: 001 FUNCT.

□

Output Action

Description
Press [Sin’] first to start the items selection

sequence and select FI: DOl FUNCT. from among
the configuration items using [ ^ ] and [ ^ ] keys.

'Then press [SET] again to display the current 1)01
function.

Pressing [SET], the system returns to the items

selection sequence.

Digital Output 1 (DOl), digital output 2 (D02) and digital input (DI) can be selected by the

configuration items as follows;

Digital output 1 (DOl)
Digital output 2 (D02)
Digital inpul (Dl)
Active status of DO 1
Active status of DÜ2

The active staius of Digital output cm be selected from Normal Open and Normal Close
for Alarm outputs which are the Convcricr alarm, the lligb/l.ow limit alarm and the Empty
alarm, Tf the function except those ahums is selected as DOl or D02 function, the active
status is ignored.

- 69 -

FL DOl FUNCT.
F2; D02 FUWCT,
F3: DI FUNCT.
F4; DOl ALM ACT.

F5: D02 ALM ACT.

TOSHIBA

6F8A0774

To change the digital I/O functions:

The following example shows how lo change the DOl function from No* 1 to No. 3.

Key operation

SEl

□

►

▲

□

SFT

□

SLT

□

Display example

Fl: DOl FUNCT.

1:H ALM

FI: DOl FUNCT.

1:H ALH

FI: DOl FUNCT.

3:EMPTY ALU

FI: DOl FUNCT.

3:EMPTY ALH

M: DOl FUNCT.

Description
Press [SETj first to start the items selection sequence

and select FI: DOl FUNCT. from among the
configuration items using [ ► ] and [ a ] keys, Then

press [SET] again to display the current DOl funcuon

[i: H ALM in this exampleV

Pressing [ ► ], the cursor appears.

Change ihe value to “3'" by presisitig [ a ] twice.

Pressing [SET], the cursor disappears and the new DOl
function display flickers. Press [SET] again to save the
new function.

Pressing [SET], the system returns to the items
selection sequence.

- 70 -

TOSHIBA

6F8A0774

Counting Rate (pulse rate)
When ;hc tuliilizer is us&d for toial flow measurement, per-couut (pulse) value is the
couiUing rate. Pulse output is also available for external totalization. In this ilcrn, the
counting rate and the pulse width for pulse output can be checked or changed. The
counting rate is set using three digits and exponential quotient.

For example, 0.123 -> 1.23^-1

(3,23>i 10'' m-)

Proceed as follows to check or change the counting rate.

■ To check the counting rate and pulse width:

Key operation Display example

SliT

□

SET

Gl: COUNT RATE

I. 00E-2m’

Gl: COUNT RATE

□

Counting rate and pulse width can be selecicd by the configuration items as follows:

Counting rate d ^ COUNT RATE
Pulse width G2: PLS. WIDTH

NOTKS

1, The counting rale should be set so that its rale for 100?^ flow rate output is

within the range from to 36U()()(K) pulseIf you try to set the counting rale
outside of this range, an error message ^ H. OVER SPEC or i L. OVER SPEC

appears.
Set the counting rate within the specified range,

Description
Press [SET] first to start the items selection sequence

and se 1 ect Cl: COUNT RATE from a mong t he
configuration items using [ ► ] and [

press iSE’1’1 asain to display the current counting rate.

Prcsssing [SETj, the system returns to the items
selection sequence.

a.

] keys. Then

Example

Case Range :36tl0m’^/h (ImVs)

Counting rate(pulse rate)

Min.: 36OO(m‘Vh)/36UOOOD(pulses/h)=^0, 001 j
Max.: 3fiiH)(m^/h) / 3.6(pulses/h) =1000

- 71 -

TOSHIBA

6F8A0774

2, The pulse widlh can be from 0-5mii to MIOtm, The pulse width should be set

to less than half of the pvJse rate for 100% flow rate output. Hven if the value

over 500ms is inputted, the pulse width is set to 500ms.
When the pulse width is set to 0 (zero), it will be automatically set to half of the
pulse rate for 100% flow rate output. If this calculated value is over lOOms, the
pulse width is set to lOOins.

I'.xa in pic I

Case Range

Counting rate(pulse rate)

the pulse ratc for 100% flow rate

: 360f{mVh)/O.D[)l(m') =3fj00000pulses/h=l000pulsefi/p

the pulse ratc= Ims

*the pulse wi dth(Max.) = lns / 2 = 0. 5n»s

l£xamplc2

Case Range

Counting rate(pulsc ratc)

:36UUm^7h (ImVs)

:0,U01m^

:36ÜümVh (ImVs)

:Ш(Ют^

the pulse rale for 100% flow ratc

: ЗШ:<пг/Ь) / l()ÍHJ(m") =3.6pulses/h=0.(HJlpulses/p

the pulse rate= lOtHJÜÜOms
the pulse width(Max.) = lÜÜÜÜUÜms / 2 = 500000ms
bul, the pulse width is 500ms Max,

* the pulse width(Hax.) = 500ms

Examples

Casse Range

:3fl00m^al (Im^/s)

Counting rate(pulse rale) :lm^

Setting pulse width :0Tns (autotnaiically set)

the pulse ratc for 100% flow rate

1 350C<mVh)/ l(m') =S600pulscs/h=lpulses/p

the pulse rate= 10(Юms

the pulse widih(Max.) = 1000ms ! 2 = 500ms

but, the pulse width that auiomatically set is iDOms Max,

* t he p ulse wid th ( Max. ) - 100n s

3, To operate the totalizer, i( is preferable to set the indicating unit (UNITI and/or

UNIT 2) to one of the units appropriate for totalization just to make sure it is
operating correctly.

-

72

-

TOSHIBA

6F8A0774

To chjinge the counting rate:

The following cxiimple shows how to change the counting rate from 0.t)l ni^ to 0,9 1.

Key operation

SET

□

►

□

▲

□

SbT

□

SEl’

□

Display example Description

Press [SET] first 10 start the items selection sequence

G1: COUNT RATE

and select Cl: COUNT RATE from among the
configuration items using [ ► ] and [ a ] keys, Then

1. 00E^2ra^

press [SET] again to display the current counting rale

(l .i)nh-2m' = O.Ot m^).

Pressing [ ► ], the cursor appears. Then press [ ► ] as

G1: COUNT RATE

1- OOE^Ziii'

Gl: COUNT RATE

1. OOE-Zl

9. OOE-ll

Gl: COUNT RATE

9. DOE-11

Gl: COUNT RATE

many limes as necessary to move the cursor to of
measuring unit.

Select "1” as the measuring unit by pressing [ a j.
(Note)

T hen inovc the cursor to the desired digit by pressing
[ ► ] and change the value. In this example repeat this
process until the display shows ""9,OOE—IL''

Pressing [SET], the cursor disappears and the new
counting rate display flickers, Press [SETj again to
store the new counting rate.

Pressing [SET], the system returns to the items
selection sequence.

Notet The mill changes as show'n below by pressing [ ^

m3—►!

In case of the converter for special specil'ications (refer to 7.3.J? "Convener for

Special specifications”), “bbl” can be selected.

The unit in parentheses (bbl), (gal) is shown only when the meter size is selected in

inches.

----

►ml

----

►(bbl)~+(gal) —

-

73

-

TOSHIBA

8^2Л1 Preset Count Value

6F8A0774

The preset count vaUie is used lo preset the lotaJi7er. I’he presei count value can be set from

Oto 9999У9У9.

NOTE

Totalizer counting is effective only for the specified direction flow.
To operate the totalizer, it is preferable to set the indicating unit (UNIT 1 and/or UNIT 2) to
one of the units appropriate for totalization just to make sure it is operating correctly.

In case of the converter for special specifications {refer to l.?>3 ^'Converter for Special
specifications'’), you can select Preset Function. For detail, sec 8.2.20 “Preset Function”.

Proceed as follows to check or change the preset count value.

I To check the preset count value:

Key operation

SET

□

SET

□

Display example Description

Press [SET] first to start the items selection

HI; PRESET

000003DO

HI; PRESET

sequence and select HI: PRESETfrom among the
configuration items using [ ► ] and [ a ] keys.

Then press [SET] again to display the preset
count value.
Pressing [SETl, the system returns to the items
selection sequence.

-

74

-

TOSHIBA

Key Operation Display example Description

,6F8A0 7 7,4

To change the preset count value

I’lic following exarnple shows how to change the preset count value from 500 to 1000,

Press [SET] first to start the items selection

SLT

□

►

□

▲

□

HI: PRESET

OQ000500

HI: PRESET

00000500

HI: PRESET

00001500

0000100

G

sequence and select HI: PRESET from amung the
configuration items using ( ► j and [ -a. ] keys.

Then press [SPri') again to display the preset count
value Í500 in this example).
Pressing [ ► J, the cursor appears. Then press [ ► ] as
many times as necessary to move the cursor to the
desired digit to be changed,

Change the value by pressing 1 ^ ]. Then move the
cursor to another digit by pressing [ ► ] and change the

value. In this example repeat this process until the
display shows

SET

□

SET

□

HI: PRESET

0000100G

HI: PRESET

Pressing ISET], the cursor disappears and the new
preset count value display flickers. Press [SET] again to
save the new preset count value.

Pressing fSET], the system returns to the items
selection sequence.

-

75

-

TOSHIBA

8*2Л2 High and Low Limit Alarms

6F8A07 7 4.

The high and low limit alarms can bj set to output an alarm signal when the flow rale ex
ceeds the high or low limit set value, When this alarm occurs, a H. ALARM orL. ALARM
message appears. This high and low limit alarm function can each be enabled or disabled in
this item. The high and low limit values can.be set from -10% to 110% of the span of the
range (Range 1) in ijicremcms of

Proceed as follows to check or change the higJt and low limit values.

To check the high and low limit values:

Key operation Display example

sriT

□

SET

M: H. ALARM SET

ON

11: H. ALARM SET

□

High/low limit alarm enablc/disablc status and high/Jow limit value cun be selected by the
configuration items as follows:

High limit alarm enable/disable status II: H. ALARM SET

High limit value I
Low limit alarm cnabJey'disuble status 13: L
Low limit value I

Description
Press [SET] first to start the items selection sequence

and select It: H ALARM SET from among the
configuration items using [ ► ] and [ a ] keys. Then

press [SET] again to display the high limit alarm
enablc/disable status.

Pressing [SET], the system returns to the items
selection sequence.

H. ALARMSET

H. ALARMVAL

L. ALARMSET
L. ALARMVAL

-

76

-

TOSHIBA

Key

6F8A0774

To change the high/low limit alarm status and its alarm limit value:

The following example shows how to change the high limit alarm enable/disable status

from OFF io ON and change the high limit value from +100 % to +105

operation Display example Description

Press [SE'l’j first to start tlie items selection sequence

Sh'l

□

►

11: H. ALARM SET

OFF

11: H. ALARM SET

OFF

and select 11; H* ALARM SET from among the
configuration items using

press [SET] again to display the liigh limit alarm
enable/disuble status (OFF at this point).

Pressing [

► ],

Ihc cursor appears.

[ ►

j and

[

a.

]

keys. Then

▲

n

SKF

□

►

□

▲

□

SFT

□

SFT

□

11: R ALARM SET

ON

12: H. ALARM VAL

+100. oi

12: H. ALARM VAL

+ 100. Q%

12: H. ALARM VAL

+ 105. 0%

12: H. ALARM VAL

+ 105. OX

12: H. ALARM VAL

Change the status by pressing

Prc.ssing [SET], the cursor disappears and the
changed status flickers. Press [SET] again to save
the status. Then the system goes to the item
12: IF ALARM VAL, and displays the current high

limit value (+10(1.0%).

Move the cursor to the digit to be changed.

Change the value to "5” by pressing

(Note 2)

(If necessary, move the cursor to auollicr digit by
pressing f

Pressing [SET], the cursor disappears and the changed
high limit value display flickers. Press [SET] again lo
save the value.
Pressing [SET], the system returns to the items
selection sequence.

►

1 and change the value,)

[.^ ].

{Note 1)

[ ^ ]

five times.

Notes:

1,

2,

If the high limit alarm cnahie/disable status is set lo OFF, the subsequent high
limit value setting sequence will not come out.
If yo u ir>' to set ih e va I u e above +110% or be low' -10 % of the span, tlie e rror

messages *H. OVER SPEC or +L OVER SPEC, respectively, appear. Set the high or
low limit value whthin the specified range.

- 1 7 -

TOSHIBA

6F,8A,0774

To change the high/low limit value:

'fhe following example showii how to change the high limit value from +10:^ % to +103

Key operation Display example

SET

□

►

□

▲

□

SET

□

SET

1^ H. ALARM VAL

+ 105. 0%

\1: K

ALARM VAl

+ 105. 0%

12: H, ALARM VAL

+ 101 OS

12: H, ALARM VAL

+101 OS

12: K ALARM VAL

□

Desciiption
Press [SET] first to start the items selection sequence

and select 12:
figuration items using [ ► ] and \ a ] keys. Then

pre,ss [SET] again to display the current high limit
value f+105.0% in this example).
Pressing [ ► ], the cursor appears. Then press [ ► ] as
many times as necessary to move the cursor to the digit
to be changed.

Change the value to '‘3" by pressing [ -^ ] as many times
as nccc,<isaг^^ (Note)

(If necessary, move the cursor to another digit by

pressing [ ► 1 and change the value,)

Pressing [SET], the cursor disappears and the changed
high limit value display flickers. Press [SET] again to
save the value.

Pressing [SET], the system returns to the items selec
tion sequence.

11.

Af ARM V^ALlVom among the con

Note: If you Iry lo set Ihc value above +110% or below -10% of the span, the error mes

sages *H. OVER SPEC or *L. OVER SPEC, respecOvely appear. Set the high iimii
value whthin the specified range,

- 78 -

TOSHIBA

8,2ЛЗ Empty Pipe AJarm

6F8A0774

The empty pipe alarm is used to notify that the detector pipe is not filled with fluid, [f ни

empty pipe condition occurs, a message ♦ EMPTY appears. You Ciiii enable or disable this
function here.

In case of the converter for special specifications (refer to 7.3.^ "Converter for Special
specifications”), you can select Empty Pipe Alarm setting OFE, ONLEVELl, ON LHVBL2>
or ON LEVEL3.

Empty Pipe Alarm Functions

Empty pipe
alarm

0: OFF
1: ON LEVEL!

2: ON LEVELZ

3: ON LEVELS

NOTE: Setting enable empty pipe alarm, normally select ‘"1:0N LEVEL 1”.

In case of difficult condition to detect empty pipe alarm, select

-2 ON LEVEL2^'or”3:ON LEVELS '.

Proceed as follows to check or change the empty pipe alarm enablc/disablc status.

To check the empty pipe alarm enable/disable status:

Key operation Display example Description

SKI

J1: EMPTY ALM

ON

□

Function

Disable empty pipe alarm
Enable empty pipe alarm (detective level high)
Enable empty pipe alarm (detective level middle)
Enable cmply pipe alarm (detective level low)

Press [SET] first to ,star£ the items selection sequence
and select Jl: EMPTY ALM from among the

configuration items using [ ► ] and [ a. ] keys. TTien
pre,ss [SET] again to display the current empty pipe

Hlann enable/disable status.

SET

□

___

Jl: EMPTY ALM

_____

Pressing [SET], the system returns to the items selec
tion sequence.

- 79 -

TOSHIBA

6F8A0774

To change the cmptv pipe alarm enable/disable status

(NormaJ Converter)!

The following example shows how to change the cmpiy pipe alarm enable status.

! i I

Key operation

SL"1'

□

►

□

▲

□

SHI

□

SFT

□

Display example

J1: EMPTY ALU

ON

J1; EMPTY ALM

ON

J1: EMPTY ALH

OFF

Jl: EMPTY ALM

OFF

Jl: EMPTY ALM

Description
Press [SET] first to stare the items selection sequence

and select Jl: E.\tPTY AIM froni among tJie
configuration items using [ ► ] and [ a ] keys. Then

press [SKT] again to display the current empty pipe
alarm cnahlc/clisablc status, (In this example ON wnll be

displayed-)

Pressing [ ► ]»the cursor appears.

Select "'OFF” by pressing [ a ].

Pressing [SKT], the cursor disappears and the selected
status display flickers. Press [SET] again to save the
status.

Pressing [SET], the system returns to the iicins seJec*
lion sequence.

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TOSHIBA

6F8A0774

■ To change the empty pipe alarm enable/disable status
(Converter for Special specifications):

The following excunple shows how (o change empty alarm from NOJ to N0,0.

Key operation

SET

□

►

□

▲

□

SRT

SKJ’

□

Display example

Jt: EMPTY ALM

1:0N LEVEL!

Jl: EMPTY ALH

1:0N LEVEL!

Jl: EMPTY ALM

0:OFF

Jl: EMPTY ALH

0:OFF

Jl: EMPTY ALH

Description
Press [SET] first to start the items selection sequence

and select Jl: EMPTY ALM from among the
configuration items using \ ► ] and [-^] keys. Then

press [SET] again to display the current empiy pipe
alarm enable/clisable status. (In this example ON
LEVELl will be displayed,)

Pressing [ ► j. the cursor appears.

Select ‘'0:OFF” by pressing [ a ].

Pressing [SET], the cursor disappears and the selected
status display flickers. Press [SET] again to save the
Status.

Pressing [SET], the system returns to the items
selection sequence.

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TOSHIBA

8.2.14 Kate-Of-Change Limit

6F8A0774

The ratc-of-changc limit is used lo diminaie high ekclrical noise contained in the process

flow signal.

To check electrical noise, two parameters are defined: rate-of-uhange limit (set in percent

value of the span) and control limit :ime (set in units of seconds). Normally the flowmeter
produces the analog output signal by sampling the How rate signal at 1/24 (or 1/12) of a

second sampling rate, H the sampled value exceeds the set rate-ol-changc limit value based
on the averaged flow rale value up vniil the sampled time, the system will reject that
sampled value and instead the averaged value including the raie-of*change limit value in

place of the rejected sampled value will be output. However, if the limlr-cxceeding sampled

value continues for the same flow direction for more than the preset control limit time, that

diïta will be used as the output signal. The setting ranges for these two parameters are as

follows;

• Rate-of-change limit
0 lo 20 %/sampling rate (in incremenis of 0,5 %)
Where the sampling rate is either ly'24, 1/12 or 1/6 of a second depending on the
excitation frequency as shown below:

Excitât ion freq ucncy Samplingrate

24 11/. 1/24 sec

12 Hz or 6 Hz L/12 sec

• Control limit timet 0 to 20 sec {in increments of 1 second)

NOTE

If “iT is set in cither of these parameters, the rate-of-changc limit function is disabled.
Proceed as follov-'s to cheek or change the ralc-of-change limit value and the control limit
time.

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TOSHIBA

6F8A0774

To check the rate-af-change limit value and the control limit time:

Key operation Display example

SET’

□

SFiT

K1: LIMIT RATE

08. 0 %

K1: LIMIT RATE

□

Riiifi-of-change limit value and control limit time can be selected by the configuration items

as follows:

Rate-of'Changc limit value K1: H. UNIT RATE
Control limit time K2; K LIMIT TIME

Description
Press [SRI'] first to start the items selection

sequence and select Kl: LIMIT RATE from among
the configuration items using [ ► j and [ a. ] keys.

Then press |SET] again to display the current
ratc^of-change limit time.

Pressing [SET], the system returns to the items
selection sequence.

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TOSHIBA

6F8A0774.

To change the ratc-of'Change Hmit value:

The following example shows how lo change the rate-of-change Jimil value from JiU) % to

15.0 %.

Key operation

SET

□

□

▲

SET

□

SET

Display example

K1: LIMIT RATE

10. 0 %

K1: LIMIT RATE

10. 0 *

K1: LIMIT RATE

15,0 %

K1: LIMIT RATE

15. a %

K1: LIMIT RATE

Description
Press [SE'F] first to start the items selection sequence

and select Kl: LIMIT RATE from among the con
figuration items using [ ► ] and [ ^ ) keys. Then

pre.ss [SET] again to display the current
rate-of“change Jimit value (10.0 % in this exumpJe).
Pressing [ ► ], the cursor appears, Then press [ ► ] as
many times as necessary ro move the cursor ю the digit
to be changed.

Change the value to "5’" by pressing [ ж ] five times.

(Note)
(U‘necessary, move the cursor to the next digit to be
changed by pressing [ ► ], and change the value.).

Pressing [SET], the cursor disappears and changed
rate-of-change limit value display flickers. Press [SET]
again io save the value.

Pressing [SET], the system returns to the itetns selec
tion sequence.

Note: If you try to set the value oat&ide the valid range» an error message * H. OVHR SPEC

appears. Set the value withir. the specified range.

To change the control limit time, se[;ct the item K2 : LIMIT TIME,

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TOSHIBA

8,2*15 Fixed-Value Output

6F8A0774

The fixcd-v^ilue output is used to output y fixed current and u fixed pulse output indepcndenl

of the flow rate signal, (The fixed pulse output is available only when DOl is used for
PUUSE: OUT function.) 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.)

• Fixed ciMTent output: 3 to 24 mA (in increments of 0.1 mA)

• Fixed pulse output: 0 to 1(1 GO pps (in increments of 1 pps)

If you have disabled this function (set to OFF), you do not have to set the subsequent
current and pulse output values.
When this function is enabled (set to ON), I he measured data is displayed with the primary
indicating unit only on the first line of the display and the fixed current output is displayed
on the second line otThe display. Other data output and display conditions are as follows;

• Current output: User-set current output

• pulse output: Pulse ou-put with a user-set counting rate

• Digital output(s): Previous status is retained (excluding pulse output).

• Data Display: Instantaneous flow rates and flow velocity (no totalization)

Display example;

'Primary indicating unit

1.000 n/s -

^ riX* OUT ¿0* 0 itiA

Fixed current output value
display

This fixed-value output function does not work in the calibration mode.
Proceed as follows to check or change the enable/disable status of the fixed-value output
and its output values.

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TOSHIBA

6F8A07.74

To check the €rmble/di!>able stutuii of the fixed - value output and its output valuer:

Key operation

SKT

□

SbT

□

Fixed-value oulpul enable/disable status, fixed current output and fixed pulse outpiil can be

selected by Iheconf^uration items ¿s follows:

Display example Description

Press [SHT] firsi to start the items selection sequence

LI: FIXED OUT

ON

LI: FIXED OUT

Fixed-value enable/disablc status
Fixed current output L2; FIX. CURR.

Fixed pulse output L3: FIX, PULSE

and select LI: FIXED OUr from among the
configuration ilems using [ ► j and [ a ] keys. J’hen

press [SET] again to display the fixed-value output
enable/disable status.

Pressing [SET], the system returns to the items
selection sequence.

LI: FIXED

1 OUT

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TOSHIBA

6F8A0774

I

To change the enable/disable of the fixed'value output and it$ output values:

The tblJowing example shows how to enable the fixed-valtic output function aitd to set Us

fixed current output to 20 mA DC.

Key operada n

SET

i

►

□

▲

□

SET

□

►

□

▲

□

SET

□

SET

□

SET

□

Display exampie Description

Press [SETj first to start the items selection sequence

L1: FIXED 0UT

0FF

L1: FIXED 0UT

DFF

L1: F1XED 0UT

DN

12: FIX, CURR.

10. 0 ida

12: FIX, CURR.

tO. 0 nA

L2: FIX. CURR.

20. 0 niA

L3: FIX. PULSE

IDO PPS

L3: FIX, PULSE

100 PPS

L3: FIX. PULSE

and select LI: FIXED OUT from among the
conliguTation item.s using [ ► ] and [ a ] keys. TTien

press [SET] again to display the current fixed-output
eiiable/disable status (OFF in this example).

Pressing 1 ► 1» the cursor appears

Select “ON"’ by pressing [ a ].

Pre.ssing [SET]j the selected status (ON) flickers. Press
[SET] again to save the status. Then the system goes lo
the fixed current value setting sequence*

Move the cursor to the digit to be changed.

Change the value lo *‘2'' by pressing [ a ] twice,
[if necessary, move the cursor to another digit by

pressing 1 ► 1 and change the value.) (Note 1)

Pressing [SET], the cursor disappears and the changed
value display flickers. Press [SET] again to save the
value. Then the system goes to the fixed pulse output
setting sequence. (Note 2)
Pressing [SK rjj the cursor disappears and the fixed
pulse output value flickers. Press [SET] again to save
[he value.
Pressing [SET], the system returns to the item.s
selection sequence.

Notes:

1. If you try lo set the fixed-value output above the aJJowable range^ an error message

^ H OVER SPEC appears. J’ry to set the value within the specified range.

2, if PLl.SE OUT is not selected for digital output, the subsequent pulse output setting

sequence wiJl not be displayed.

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TOSHIBA

6F8A0774

To change the fixed pulse output value:

The following example showii how' lo change the fixed pulse output value from 50 pps to

100 pps.

Key operation

SET

□

►

□

▲

□

SET

SET

□

Dí,spla.v example

L3t FIX. PULSE

050 PPS

L3: FiX. PULSE

050 PPS

L3: FIX, PULSE

150 PPS

100 PPS

L3; FIX. PULSE

100 PPS

L3: FIX, PULSÉ

Description

Pret^s [SE1] first lo start Ibe itenvs selection sequence
and select L3: FIX. PULSE from among the

configuration items using [ ► ] and [ a ] keys. 'Fhen
press [SET] again to display the eurrent fixed pulse

output value (."iO pps in this example).
Pressing [ ► the cursor appears,
(if necessary, move the cursor hy pressing [ ► ] to the
digit to be changed.)

Change the value to “1” by pressing [ a ]. Then move
the cursor to another digit to change and change the

value. Li this example repeat this process until the

display shows ‘*1(JU pps.”

Pressing [SET], the cursor disappears and the changed
value display flickers. Press [SRT] again to save the
value.

Pressing [SET], Ihe system returns to the items
selection sequence.

1

Fixed current output value can be changed by selecting the configuration item L2; FIX,
CURR.

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TOSHIBA

8^2,16 Zero Offset Adjustment

6F8.A077 4

Zero offset can be applied lo make the flowmeter ouipiits comparable lo process values
measured by other instruments. If the ¿его adjustment described in 6.2 requiring a zero
flow rate condition can he performed, diis zero offset adjustment is not needed. When the
zero adjustment is completed, zero offset will be automaiically cleared to zero.
Zero offset can be set in the range dciicribed below:

Zero oiiset: ±0,125 m/s (±1.25 7c of 10 m/s—maximum range) maximum

IVocecd as follows to check or change the zero offset value.

■ I'o check the zero oHiset value:

Key operation

SKI

□

SET

□

I To change the zero offset value:

Calculate the zero offset value with the following equation:

Zero offset value (%) = {{actual flow rate) - (LF404 measured value)}

The zero offset value should be c:dculated in percent value for Range 1. See the following
example.

Display example Description

Press [SET] first to start the items selection sequence

U1: MANUAL ZERO

tOG2. 5 %

Ml: MANUAL ZERO

and select Ml: MANUAL ZERO from among the
configuration items using [ ► ] and [ a ] keys. Then

press fSET] ufiain to display the current zero offset value

Pressing [SETj, the system returns to the items selection

sequence.

(Example)

Measured condition
Actual flow' rate obtained

from other insirumem,
LP4U4 measured value

Zero offset

If zero offset is set lo -2.5 %, the LF404 converter will output 50,0 %
llnvr' rate instead of.52,5%,

Flow rate

% in measurinf! span

10,0 m-V'min 50 %

10.5 m Vmin

52.5 %

-2.5 %

- аэ -

TOSHIBA

6F8A07.74

The following example shows how to change the zero offset value from +lXi% to -2.5%^

: Key ope nit Inn
'

SFI’

□

►

□

▲

□

SET

Display example

Ml: MANUAL ZERO

+001.

Q %

HI: MANUAL ZERO

+001. DSi

HI: MANUAL ZERO

lOOKO*

-002. 03C

-002. 5*

M1: MANUAL ZERO

-002. 5)i

Ml : MANUAL ZERO

Description

PreiiS (SET] first to start the items selection sequence

atid select Ml: MANUAL ZERO from among llie

configuration items using [ ► ] and [ a ] keys. Then

press [SET] again to display the current zero offset

value.

Pressing [ ► ]»the cursor appears.

(If necessary^ press [ ► ] as many times as

necessary to move the cursor to the desired digit to

change.)

Change the sign code (“+" to by pressing [ a ].

Then move the cursor to another digit by pressing [ ► ]

and change the value, In this example repeat this process

until the display shows “-(XI2.5 (Note)

Pressing [SET], the cursor disappears and the changed

value display flickers. Press [SET] again to save the

value.

Pressing [SET], the system returns to the setting

items selection sequence.

Note: [f you iry to set tite value above +0.125 m/s or below -(1,125 m/s, the error messages

t H. OVER SPEC or* L OVER SPEC, respectively, appears.

Sei the value within ±0,125 m's.

- S O -

TOSHIBA

*Note

8,2.17 Passivord

6F8A0774

Only in Cities of the converter for special specificHtion (refer to 7.3,3 “Converter for
Special specificalions")^ read from R.2.17 io8,2.2il,

rhe normal converter dose not have these parameters, and these parameters do not appear

in the items selection sequence,

The converter for special specifications have password that protects from calibrating and
changing pEirt of parameter that influences mepsoremenL

Proceed as follows to check or chEmge the password,

11 To check the password:

Key operation

SET

□

SET

□

Note: In case of inputting wrong password in the password input mode

Key operation

SET

□

SET

Display eTtampk Description

Press [SET] first to start the items selection

A4: PA^SWORP

nz

A4: PASSWORD

Display example

A4: PASSWORD

A4: PASSWORD

sequence and select A4x PASSWORD from among the
configuration items using [ ► ] and [ a. ] keys Then

press ¡SH'n again to display the current
password(123).

Pressing [SET], the system returns to the items
selection sequence.

Description
Press [SET] first to start the items seJcclion

,scquence and scJcci A4: PASSWORD from among the
configuration items using [ ► ] and [ a J keys Then

pre,ss [SET] again to display .

Pressing [SET], the system returns to the items
selection sequence,

□

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TOSHIBA

Key operalJott Display example Description

6.F8A0774,

■ To change the password;

The following example shows how (o change the password from 123 mm to 453 mm.

Press [SH f] first to start the items selection

sequence and select A4: PASSWORD from among the

SHI

□

►

□

A4; PASSWORD

123

A4: PASSVORD

123

configuration ilcms using [ ► ] and [ a. ] keys. Press

[SET] again lo display the current password (123 in

ihííj example).

Case of inputting wrong password in Ihc
password input mode, the current password
doesn't appear, but “***” appears.

Pressing [ ► ], the cursor appears. Then press [ ► ]
as many times as necessary to move the cursor to digit
to be changed.

A ►

SET

SET

□

Note;

<Notice>

The method of PASSWORD MA^AGLMH^”1’ including its lifting or reading out requires
to be controlled hy our system's ow^n ri^jk.

A4: PASSWORD

423
453

A4: PASSWORD

456

M; PASSWORD

1. Setting ‘‘iXXJ"’ [o the password, passwmd input mode doesn’t appear and ei11
configuration parameter and calibrate can be changed.

2, If passsword is set, do not forget the password. In case of forgetting password,

refer to next page, readoul the password, But the administrEttion, including

the way to readout password,

Change the value by pressing [ a. ], Then move the
cursor lo another digit by pressing [ ► ] and change

the value. In this example repeat this process uniiJ the
display shows *‘453’’ (Note)
Pressing [SET], the cursor disappears and the changed
display flickers. Press [SRT] again lo save the value.

Pressing [SET], the system returns to the items sc­lecUoji sequence.

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TOSHIBA

*In case of forgetting password (reading out password)

Proceed as folJows tcj unly readout password in case of forgetting password. In the other
cascj do not do it.

<Notiee>

The meihod of PASSWORD MAJMAGEMENT including its lifting or reading out requires
to be controlled by system's own risk.

■ Readout the password;

I'he following example shows how' to readout the password .

Key operation Display example Description

Befor lurning 01] power, орел the housing cover for

LCD display, and short-drcuil between TT-RST and

TT-G that is back of the operation panel with the

dip-type cable (refer to f igure 8.1)

After that, turning on power, LCD back-light bright,
in the operation panel

Open the dip-type cable.

10.00 m/s

100. 0 %

LCD displays "SIGNAL CHECKS and after that
displays measured daia,(measureTncni mode)

6F8A0774

SET

□

^ ►

□ □

SET

SET

□

□

SKI’

□

PASSWORD INPUT

m

PASSWORD INPUT

m
m
m

PASSWORD INPUT

123

Al: EX. CLRR.

A4; PASSWORD

A4: PASSWORD

123

Pressing [SET], password input mode and the cursor
appears.

Change the value by pressing [ a J.and [ ► ].

Pressing [SET], the cursor disappears and the changed
display flickers. Pre.ss [SET] again to input the value.

Whether input password agrees or dose not agree , the
items selection sequence, “Al: EX, CURR’' appears.

Select A4: PASSWORD from among the configuration
items using [ ► j and [ a ] keys ,

Press [SET] again to display the current

password(l23).

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93

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TOSHIBA

6F8A.0 7 7 4.

dip-iypc ciiblc

Figure 8.1

-

94

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TOSHtBA

8,2»18 4-20niA Alarm Output

6F8A0774

The 4-20mA Aiarm output i,s the vulue of current output hi converter nlarms us empty pipe

iilarm or self-diagnostics aJurms.
You can select the various current output value nt converter alarms shown below-

4-20mA Alarm output Functions

4-20 ALM< Out items
0; LINDER 3.0mA

i; 4.0niA
2; HOLD

3i OVER 24.0mA

Proceed as follows to check or change the burn out.

■ I'o check the 4-20mA Alarm output functions:

Key operation

SET

□

SET

Display example Description

D3; 4-20 ALH- OUT

V.4. OnA

D3: 4-ZD ALH. OUT

□

Current Output Value at Converter Alarms

Under 3.0mA output
4*0mA output
Measured data hold
Over 24.0mA oulput

Press [SET] first to start the items seJeclion sequence
and select D3: 4-20 ALM*OLT from among the

configuration items using [ ► ] and [ a ] keys, i’hen
press [SE T] again to display the 4-2U ALM.OUT

function.

Pressing [SET], the system returns to the items

selection sequence.

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95

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TOSHIBA

6F8A077.4.

To change the 4'20niA Alarm output functions:

Tlic following example shows how to change the 4-20mA Alarm output fimciioa from No. 1
lo No. 3.

Key operation

SET

□

►

□

▲

SET

SET

□

Display example

D3: 4-ZO ALM. OUT

1:4. 0mA

D3; A-20 ALM. OUT

1:4. 0mA

D3: 4-20 ALH. OUT

3:24. OiA

D3: 4-20 ALW, OUT

3:24. 0mA

03: 4-20 ALH. OUT

Description
Press [SET] firsi io start the items selection sequence

and select D3 4-20 ALM.OLT from among the
configuration ileins using [ ► ] and [a. ] keys. Then

press [SET] again to display the current burn out
function (1: 4.0mA in this example).

Pressing [ ► ], the cursor appears,

Change the value lo “3’"' by pressing [ a ] twice.

Pressing [SET], the cursor disappears and the new
burn out fuiiciion display flickers. Press [SET] again to
save ihe new function.

Pressing [SET], the system returns to the items
selection sequence.

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TOSHIBA

8*2,19 DI detective Level

6F8A,07 7 4

In ciisc of coumer (pulse output) control is selected Af> DU you can sci detective level ,H
level or L level.

■ DI detective Level (only case counter control is selected as DI ):

DI DET.LEVEI.
Items

0: L LEVEL

1: H LEVEL DI 1 : C STA/S'lT H Ic vd signal input ; COUN I’RR STA R'l’

Digital input function

DniC STVSTP
(Totalizer Siart/Stop)

DI 2:C RES/STA
{Totalizer Reset/Start)

{Totalizer Start/Stop) L levd iiigjia] input: COUNTER STO?
DI 2:C RES/STA
(Totalizer Keset/Start)

The detective level of DI can be selected from H level and I, level for Counter control
which arc the totalizer Surl/Stop the lotuliz-cr Reset/Siari, If the funeckm except these
counter control is selected as Dl function, the detective level is ignored.

I^roceed as follows to check or change (he DI detective level.

B To check the DI detective level;

Key operation Display example Description

Counter control signal

H level signal inpul: COUNTER STOP
L level signal input: COUN'J’ER START
H level signal iiipul: COUNTER STARI’
L level signal input; COUNTER RESET

H level Sig nal input; COUN J ER RESET
I, level signal input: COUNTER START

SET

□

SET

□

F6:D| DEL LEVEL

l:H LEVEL

FG:DI DEL LEVEL

"

Press [SEl'f ] first to start the items selection sequence

and select F6i DI DET* LEVEL from among the

configuration items using [ ► ] and [ ^ ] keys. Then

press iSET] again lo display ihe DI detective level.

Pressing [SET], the system returns to the items

selection iiequence.

97

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TOSHIBA

6F8A0774

■ T(» change the DI detective level:

The foliowing exampk shows how (o change the Dl detective level from H level to 1. level,

Key operation

SET

□

►

□

▲

□

SET

□

SET

□

Display example Description

Press [SET] firsl to start the items sdeclinn sequence

Ffi'DI DET LEVEL

1:H LEVEL

F6:DI GET. LEVEL

1:H LEVEL

F6:DI GET. LEVEL

Q:L LEVEL

F6:01 GET LEVEL

0:L LEVEL

F6:DI GET. LEVEL Pressing [SET], the system returns to the items

and select F6: DIDET* LEVEL from atnong the

configuration items using [ ] and f a. ] keys. Then
press [SE I’l again to display the current preset level

function fl: 111.EVEL in this example).

Pressing [ ► ], the cursor appears.

Change the value ш LEVEL” by pressing [ ^ ] .

Pressing [SET], the cursor disappears and the new
preset level function display flickers, Pre,ss [SET] again
to save the new function.

selection sequence.

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93

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TOSHIBA

8 »2 »20 Preset Function

6F8A0774

The various preset point output functions shown i>clow can be selected.

■ Preset Point Output Functions

DI function

0: HOLD

1: 50ns PULSE

2: SOOis PJLSE

Proceed as follows to check or choiigc the preset point output functions.

■ To check the preset functions:

Key operation

SET

□

SET

Display example

H2: PRESET FUNCT

0:HOLD

H2 PRESET FUNCT

□

Pi-eset poiut mitpui level function

Output status level hold

Pulse out (pulse width iOms)

J^ulsc out (pulse width 5[)Diris)

Description
Press [SET] first to start the items seleciJon sequence

and .select H2: PRESET FUNCT from among the
configuration items using [ ► ) and [ a. j keys. Then

press [SET] again to display the current preset level
function

Pressing [SET], the system returns to the items selec
tion sequence.

- 99 -