tokyo level gauge ft 1000_im l541 5e

This is the Instruction Manual for FT-1 Series Float-Tape type Tank Gauge. Read through before installation and operation.

1. NOTATION RULES Safety Symbols This manual classifies safety notes using the following sym-

bols:

If this indication is disregarded and this instrument is operated

incorrectly, serious injury or fatal accident may result.

If this indication is disregarded and this instrument is operated

incorrectly, injury or property damage may result.

General Information Symbols This operation manual classifies general information notes

using the following symbols:

Indicates procedures or information required to operate this

product.

Indicates information that should be understood to enable this

product to be operated safely and comfortably.

(-P.)

The indicated page contains information other than notes that

should be referenced.

2. OPERATIONAL NOTES General Notes

This product is delivered after manu-

facturing and adjustment. Inspections have been conducted

based on the optimum quality control method for industrial

instruments. If any attempt is made to modify or change this

instrument, it may fail to perform as intended, or incompati-

bility or accidents may result. Do not modify or change this

instrument in any way. If it is necessary to modify or change

it, contact Tokyo Keiso Co.

Be sure to operate the instrument within

the ranges of the specifications for fluid pressure and temperature

listed in the Approval drawing. If the instrument is operated out

of these ranges, it may become defective or be damaged.

During transportation and storage, en-

sure to prevent moisture, dirt or sand from entering the in-

strument as such will cause damage or render the instrument

defective.

When connecting the instrument to

your process, center the pipes appropriately, set the flanges

correctly, and match the sizes of the joints. If there is an error

in size stress may occur in this product, causing defects, mal-

function or damage.

Use this product only as an industrial instrument.

INSTRUCTION MANUAL FT-1 Series FLOAT-TAPE TYPE TANK GAUGE

IM-L541-5E

APR. 2013E

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Material

The material of this product is de-

scribed in the Approval drawing. Although we make every

effort to select the optimal material for the customer’s speci-

fications, it may not be perfect due to the presence of foreign

matter. Thus you are responsible for checking for anticorro-

sivity and compatibility.

Maintenance and Inspections

When removing this product from your

process for maintenance or inspection, make sure there is no

object to be measured remaining in the instrument. If the ob-

ject is corrosive or toxic, the operator may be adversely af-

fected.

The frequency and contents of the

maintenance and inspection of this product vary depending on

the operational conditions. See the relevant selection of this

manual or check the actual operational conditions.

Control Safety

Although this product is delivered after

manufacturing, adjustment and inspections have been con-

ducted based on the optimum quality control method for in-

dustrial instruments, an unexpected defect may occur. If this

product is used for process control that may result in a critical

safety problem, take all necessary actions to maintain safety.

3. SCOPE OF DESCRIPTION AND RELEVANT INSTRUCTION MANUALS

This instruction manual covers FT-1 Series FloatTape

type Tank Gauges. This manual describes the mechanical por-

tion of tank gauge. Alarm and analog and other transmitters

are integrated as an option. In these case, refer to separate in-

struction manuals for such transmitter/alarm portion as fol-

lows;

Type of Transmitter Model Applicable Instruction Manual

Alarm Transmitter TR-10- IM-L541(1)-E

Analog

(DC4 - 20 mA) Transmitter

TR-21- IM-L541(2)-E

Alarm+Analog

(DC4 - 20 mA)

Transmitter

TR-22- IM-L541(3)-E

Pneumatic output

Transmitter AT-101W IM-L541(4)-E

4. PRODUCT OUTLINE FT-1 is a series of Float-Tape type Tank Gauges. Liquid

level in tanks are detected by the float and the level is indi-

cated by indicator. The detection and indication are done by

pure mechanical motion and no power / utility supply is re-

quired.

In addition to Local indication type, different types of trans-

mitters are able to integrated.

- 3 -

5.OPERATION PRINCIPLE As shown in Fig. 1, The FT-1000 Series Level Gauge consists of a level detecting float, connecting parts (tape, guide elbow, etc.)

and the indicator. The indicator body comprises the sprocket pulley, tape winding pulley, constant torque spring (Conston Spring),

gear mechanism, pointer and scale plate. When a transmitter is provided for the level gauge, the transmitter is connected to the

sprocket pulley shaft of the indicator body through the coupling mechanism.

The float is kept afloat on the surface of the liquid with a constant draft line, and follows any changes in the liquid level.

The float is connected to a tape winding pulley through the stainless steel tape, which is punched at regular intervals. The con-

stant torque spring is incorporated in the tape winding pulley in order to apply a constant torque in the tape winding direction.

This constant torque is balanced with the weight of the float on the surface of the liquid.

When the float rises and lowers, according to the change in the liquid level, the tape which is interlocked with the float rotates the

sprocket pulley, which in turn is engaged with the punched tape. The rotation corresponds to the upward or downward movement

of the float. Thus, any change in the level of the liquid is converted to the change in the rotation angle of the sprocket pulley shaft.

This rotation angle of sprocket pulley is transferred to transmitter unit. i.e. Microswitch alarm, pneumatic, electric, digital BCD

etc. through coupling unit for remote data transmission.

Fig. 1. OPERATION PRINCIPLE OF FT-1000

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6. ACCEPTANCE AND STORAGE 6.1 Acceptance Check the following on arrival of goods. Contact your sales

agent or Tokyo Keiso in case that any discrepancy and / or

problem is found.

Model of product

Quantity of product

Accessories

Damages during transportation

6.2 Storage Observe the following for the location of storage;

Free from corrosive vapour

Free from dust, sand and others

Temperature is stable and within -10 - +50°C.

Free from mechanical vibration and stress

Free from rain water

Take care for introduction of rain water from cable entry

holes for transmitters versions. Introduction of water into

electronics housing will cause breakage of internal circuit.

7. STANDARD SUPPLY SCOPE Standard supply scope and typical installation by tank types

are shown below. The supply scope may differ depending on

specification and others. Confirm such supply scope in Ap-

proval Drawing.

General Cone Roof Tanks

No. Part Description Q’ty ○1 Indicator 1

○2 90° guide elbow 2

○3 Guide wire knob 2

○4 Guide wire 2

○5 Measuring tape 1

○6 Float 1

○7 Bottom piece 2

○8 Gauge support –

○9 Pipe support –

○10 Pipes –

○11 Union –

Floating Roof Tanks



○3 Guide bush 1


○5 Tape-wire joint 1

○6 Measuring wire 1

○7 Float 1

○8 Wire guide 1

○9 Indicator support –


○11 Pipes –

○12 Union –

Note: Specify the measuring wire length so that the

tape-wire joint travels in the operational range of

H mm, inside of vertical section of the tape pro-

tection pipe.

Spherical (Ball) Tanks





○5 Float 1




○9 Guide wire 2

○10 Bottom piece 2


○12 Indictor support –

○13 Tape protection pipe –

○14 Shut-off valve 1

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Gas Holder Tanks

No. Part Description Q’ty○1 Indicator 1




○5 Wire joint 1


○7 Wire guide 1

○8 Indictor support –


○10 Pipes –

Underground tanks, Tank Top Installation

No. Part Description Q’ty○1 Indicator 1


○3 Guide wire 2


○5 Float 1

○6 Bottom piece 2

○7 Pipes –

8. INSTALLATION 8.1 Preparation of Installation Installation nozzles are to be prepared onto the tank.

Location, dimension and connection standard are to be con-

firmed in Approval drawing.

Two different diameters of float are available as standard

(300 mm and 400 mm). The guide wire pitch also differs.

Confirm in Approval drawing before preparation of nozzles.

Tape protection pipe is to be installed strictly above the in-

dicator and is to be strictly vertical. Inclination and/or vend-

ing of the pipe will cause the friction between tape and tube

and further result wrong accuracy and/or malfunction.

8.2 Parts for Installation The following parts for installation are customers’ scope of

supply unless otherwise agreed. Prepare suitable materials

referring to Approval drawing:

Tape protection pipes

Pipe supports

Indicator support

Bolt ,nuts and gaskets for process connection

8.3 Installation onto General Cone Roof Tanks (1) Mounting of guide wires

Install guide Wire Knobs onto tank nozzles. The connec-

tion is conducted through flanges, screws or by welding.

Confirm in Approval drawing.

Weld the bottom pieces on tank bottom. The location of

bottom pieces is to be strictly equal to the positions of

guide wire knobs.

Connect the upper end of guide wires to Guide Wire Knobs.

In this procedure, it is recommended to extract approx. 150

mm from the wire clip in guide wire knob and turn the guide

wire. Then, insert the guide wire end into rotating bolt of

guide wire knob to avoid loosening. This extra length of

guide wire is also useful for float replacement.

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Connect the lower end of guide wires to Bottom Pieces.

Loosen the Hex headed bolt of bottom piece. Then pass

the guide wire through the hole on M12 bolt. Keep approx.

100 mm extra length of guide wire from the bolt to avoid

loosening.

Tighten the Hex headed bolt firmly. Loosening of this

Hex-headed bolt may result loosening of the guide wire

and further result wrong operation of float.

Give suitable tension onto guide wire by additional tight-

ening of fixing nut in Guide Wire Knob.

(2) Mounting of Float onto Guide Wire

Remove Wire Guide on both side of Float.

Put Guide wires through the guide holes.

Fix the closing pieces of Wire Guide by screws and nuts.

In this operation, insert the screws from the bottom side of

the float and tighten the nuts on upper side of Wire Guide.

Two guide wires are w be strictly parallel.

The guide wire plain and tape running plane are to be at

right angles.

(3) Mounting of Tape through Tape Protection Pipes

Measuring tape has been already mounted on the indicator

and covered by carton box with rubber protection.

1) Take out the tape from the carton box.

2) Remove the rubber protection.

3) Extend the tape for whole length. Take care not to dam-

age the tape during this procedure.

4) Open the cover of 90° Guide Elbows.

5) Hung down an Leading wire from the opening of the out

side 90° Guide Elbow into tape protection pipe.

6) Extract the edge of the Leading thread.

7) Connect to the tape. Do not forget insertion of Gasket for

Indicator.

8) Pull up the tape and whole length of tape is to be ex-

tracted from the out side 90° Guide Elbow.

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9) Install the indicator tentatively onto indicator support.

Also fix the tape protection pipes.

10) Put the tape into horizontal protection pipe to the inner

90° Guide Elbow direction.

11) Extract whole length of tape from the opening of the in-

ner 90° Guide Elbow.

12) Confirm that the tape is properly located on the pulley of

out side 90° Guide Elbow.

13) Insert the tape into tank from the opening of inner 90°

Guide Elbow.

14) After insertion of the tape, confirm that the tape is

properly located on the pulley of inner 90° Guide Elbow

15) Confirm that the taper is running without twisting and/or

vending for whole length

(4) Connection of Tape to Float

1) Remove two screws of Tape Fixing Piece.

2) Insert tape from the top side of Tape Fixing Piece and

turn our upward.

3) Fix the piece by two screws.

4) Cut the remaining tape with Approx. 20 mm extra.

(5) Preparation for measurement

Be sure to carry out the following operations in the safe hands

that the float with tape connected has arrived at the bottom.

The winding-up mechanical section under a measurement in-

dication part is changed from a transportation state to a meas-

urement state.

1) Hold a manual knob not to turn, pushing it by hand, and

remove the fixing screw for transportation. (This screw is

unnecessary.)

In this state, the power, drawing a slack of measuring tape to

the inside of a meter, works by the tension of the conston

spring (Conston tension spring) inside the meter.

2) If the manual knob moves, move it gradually without

taking hands off, and when The manual knob stops mov-

ing, pull it out to the front, and it will be in the measuring

mode.

If the measuring tape is properly attached, the manual knob

hardly moves, nor the indication changes. In addition, in order

that the knob may not be inserted again after pulling it out to

the front, turn the lock lever counterclockwise seeing it from

the top, and lock to use.

In case the indicator is installed on the tank top, it will be in

reverse direction.

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When measuring: The lock lever is released (turning

counterclockwise seeing it from the top), and the manual

knob is pulled out.

When winding up: The manual knob is pressed into, and

the lock lever is locked (turning clockwise seeing it from

the top).

8.4 Installation onto Floating Roof Tanks 1) Liquid level is measured at the chamber portion which

locates on the floating roof.

2) Guide wires, Guide Wire Knobs and Bottom Pieces are

not supplied.

3) Install Wire Guide below the Inner 90° Elbow.

4) Install Bushing onto specified location of Roof Chamber

Cover.

5) Pass the Measuring wire through Wire Guide and Bush-

ing.

6) Tape-Wire Joint system is adopted for Floating Roof

Tank version. Refer to 11.6 for the details of Tape-Wire

Joint system.

7) The Tape-Wire Joint Piece should locate below the Out

side 90° Elbow even when the float shifts to bottom posi-

tion. And, it is should also locate above the indictor even

when the float rises to the top position.

8) The measuring wire is to be connected to float.

9) Other installation procedures are identical to those of

Cone Roof Tank version.

8.5 Installation onto Spherical (Ball) Tanks 1) A Shut Off Valve is provided at the top of tank for

maintenance of indicator during operation.

2) Two 135° Elbows and one 90° Elbow are provided to

connect tape protection pipes.



Joint system.



8.6 Installation onto Gas HoIderTanks 1) Float, Guide Wires and Guide Wire Knobs are not pro-

vided.

2) Wire Connecting Piece is provided which is welded on

the Gas Holder Roof.

3) Install Wire Guide below the Inner 90° Elbow.

4) Pass the Measuring wire through Wire Guide.



Joint system.

6) The Tape-Wire Joint Piece should locate below the Out

side 90° Elbow even when the float shifts to bottom posi-

tion. And, it is should also locate above the indictor even

when the float rises to the top position.



8.7 Tank Top and Underground tank Version 1) The indicator is installed at the tank top.

2) No Tape Protection Pipes and elbows are provided.

3) The direction of indicator is so called up side down than

the tank side installation.



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8.8 Internal Chamber Guide Version 1) Float is guided by internal chamber (6” pipe standard).

2) Standard diameter of float is 135 mm in this version.

3) Guide Wires, Guide Wire Knobs and Bottom Pieces are

not provided.

4) The internal chamber is normally customers’ scope of

supply. Vending and inner welding bars will be the cause

of wrong operation. Arrange proper and suitable internal

chamber.



8.9 Installation of Seal Pots 1) Sealing pot is provided for corrosive vapour producing

application on request to avoid introduction of corrosive

vapour into indicator.

2) V shaped and U shaped seal pot are available. (See below

sketches)

3) Install Seal pot as per the description in Approval Draw-

ing.

4) Take care for direction of Seal pot. The material con-

struction may differ.

5) After completion of installation and indication adjust-

ment, inject sealing liquid. the sealing liquid is normally

scope of supply of Tokyo Keiso and delivered with the

instruments.

6) Please prepare the sealing liquid by a customer.

7) Sealing liquid sticks to the surface of tape. Therefore a

little sealing liquid enters in a tank by all means. And

sealing liquid is mixed with the liquid in a tank. There-

fore choice of the sealing liquid which is no influence to

the liquid in a tank is essential.

8) In addition, please always watch consumption of sealing

liquid. The lack of the sealing liquid causes the serious

damage of the tank gauge. The volume of the sealing liq-

uid is required about one liter.

If necessary, you can buy the sealing liquid as follows;

Silicon oil

Liquid paraffin

8.10 Other special installations 8.10.1 Anchor Weight + Guide wires

1) For additional installation onto existing tank and when

no welding is possible, Anchor Weight + Guide wires

will be delivered. Bottom pieces are already welded on

the Anchor Weight and Guide Wire Knobs are welded on

Manhole cover.



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9. INDICATION ADJUSTMENT 9.1 When no actual liquid is available and

float stays on tank bottom 1) Refer to Tank Design Drawing and get the float bottom

position.

2) Add Draft height of float.

3) Set obtained figure onto Dial or onto counter,

9.2 When actual liquid is available in tank 1) Conduct dipping and obtain the actual liquid level.

2) Set obtained figure onto Dial or onto counter.

9.3 Adjustment of pointer indication version (FT-11) Uncover the front cover of the indicator.

Remove the cap nut located at the center of pointer care-

fully by unscrewing it in the anti-clockwise direction using

a suitable tool like long-nose pliers.

Pull forward the short pointer in the following manner. The

short pointer has been inserted firmly into the tapered axis.

Insert a flat screw driver or the like from the side between

the short and long pointers. Pull forward and remove the

short pointer gradually and carefully not to damage any

parts by using the flat screw driver.

The long pointer can be adjusted as in the installed posi-

tion without removing it because of the difficulty of re-

moving.

Let’s adjust the short pointer first as the followings.

The scales for the short pointer are printed as Min. 1 mm

to Max. 100 mm (from 0° to 360° one rotation).

Set the short pointer to the scale corresponding to the last 2

digits of the target figures, namely 10 mm and 1 mm digit.

Insert the short pointer and fix it as follows.

Set the cap nut. Fasten the cap nut firmly by your fingers.

Then fasten it by long-nose pliers gently. Do not fasten the

cap nut too strongly. Too strong fastening leads to make

the long and short pointers rotate together because of the

fixing of them.

Let’s adjust the long pointer next as the followings.

The scales for the long pointer is printed as Min. 100 mm

to full scale height such as 3 m, 5 m, 10 m, 15 m, 20 m and

so on, corresponding to the specified tank height.

Find the location of the long pointer on the scale for the

figure more than the 100 mm digit and guess the location

somewhere between two scales for the figure 10 mm and 1

mm digit already set with the short pointer.

Before adjusting the long pointer by your finger, unfasten

the fastening screw and make sure the long pointer moves.

Set the long pointer to the above location and fasten it with

the fastening screw. Make sure the long pointer adjustment

gears fit smoothly or the fastening screw does not touch

the base plate or other mechanism.

After above setting, check the carrying from the short

pointer indication to long pointer indication. With the op-

erator of the float winding mechanism, wind up the float

and check if the long pointer is carried every time when

the short pointer cross the 0 mm at one rotation. Check the

long pointer accords to the scale reading, If deviated, re-

adjust the long pointer.

Install the front cover so that the vent hole of the cover

looks downward before completion of the adjustment.

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9.4 Adjustment of Digital Counter Indication Version (FT-12) 1) Open the front cover of the indicator.

2) Loosen the set screw which Flat Gear A to rotating shaft

to make counter movement free (M3 Hex wrench).

3) Rotate the Bevel Gear to obtain required figure on coun-

ter.

4) Tighten the set screw which Flat Gear A to rotating shaft.

5) Confirm the smooth matching between Flat Gear A and

B.

6) Close the front cover of the indicator properly,

10. OPERATION 10.1 Indication of liquid level 10.1.1 In case of Dial Pointer Indication version

(FT-11)

Red short pointer indicates mm unit and black long pointer

indicates m unit.

10.1.2 In case of Digital Counter version (FT-12)

Counter shows 10 cm unit and small dial indicates mm unit.

One rotation of small dial is for 100 mm.

10.1.3 In case of Volume Indication version

(FT-13)

Special graduation such as volume indication is also available

on request.

Confirm the description on indication in Approval Drawing.

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11. MAINTENANCE 11.1 Standard Maintenance Items The following is standard maintenance items;

Function and repeatability check

1) By using hoisting mechanism, function and repeatability check can be conducted by the following procedure;

2) Record the present indication figure.

3) Insert Hoisting handle into Hoisting handle shaft.

4) Rotate the handle clockwise to hoist the float for several hundreds mm.

5) Rotate the handle counter-clockwise to place the float on liquid surface again.

6) Compare the new indication of liquid level to previous recorded figure.

7) In case the difference is within several mm, it is judged that the instrument is working properly.

11.2 Hoisting up of float Float can be hoisted up by the following procedure;

1) Insert Hoisting handle into Hoisting handle shaft.

2) Hoist the float to top position.

3) Tighten lock lever.

The release of float is to be conducted by the following procedure.

1) Push the Knob and confirm.

2) Insert Hoisting handle into Hoisting handle shaft

3) Hold the handle firmly and rotate counter clock-wise. DO NOT RELEASE THE HANDLE.

4) Hoist down the Boat gradually to liquid surface.

11.3 Trouble shooting Phenomena Suspected cause Countermeasure

No indication change ○1 Tape brakage ○1 Replace of tape ○2 Conston spring breakage ○2 Replace of Conston spring ○3 Float sinking ○3 Replace of Float (Confirm the anti corrosive

capability) ○4 Float/guide wire problem ○4 Confirm the guide wire installation (Parallel) ○5 Mechanical breakage in indicator ○5 Check the contamination on Guide Wire ○6 Contamination on sprocket pulley and others ○6 Check the screw tightening ○7 Problem in tape movement ○7 Resetting of tape, Cleaning inside

Wrong accuracy ○1 Contamination on float ○1 Check the float ○2 Float/guide wire problem ○2 Confirm the guide wire installation (Parallel) ○3 Torque change of Conston spring due to me-

chanical fatigue ○3 Replace of Conston spring

○4 Problem of 90° Guide Elbow ○4 Cleaning of 90° Guide Elbow Difference from the dipping figure

○1 Tank deformation ○1 Investigation on error tendencies ○2 Mechanical change of indicator ○2 Replacement of deteriorated parts ○3 Contamination on dipping plate ○3 Removal of deposits

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11.4 Replacement of Measuring tape Replacement of tape can be done by the following procedure;

1) Open the rear cover of indicator.

2) In case of High Pressure version, the pressure in the indicator is equal to that in the tank. First, close the Shut Off Valve, then

release the pressure in indicator and in tape protection pipe by suitable method. Take care for toxic/corrosive vapour.

3) Remove Conston Spring from Conston Winding Pulley referring to the below sketch.

4) Remove Conston Pulley.

5) Remove Conston Winding Pulley.

6) Remove the screw on the tape end from Tape Winding Pulley.

7) Remove broken tape from the instrument.

8) Connect the one end of new tape to Tape Winding Pulley by the screw.

9) Give two rotation of spare winding.

10) Install Conston Pulley and Conston Winding Pulley onto proper position but do not insert setting screw yet.

11) Wind the Conston Spring onto Conston Winding Pulley. Tow times winding on Conston Pulley is to be reminded.

12) Lock the float.

13) Mount the tape through protection pipe and connect to float referring to the description in this Manual.

14) Insert the setting screw into Conston Pulley and Conston Winding Pulley to fix their angle.

15) Using Hoisting handle properly and give tension onto tape.

16) Conduct indication adjustment.

17) By using hoisting handle, check the smooth movement of float for all the span.

18) Close the rear cover of the indicator properly.

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11.5 Replacement of Conston Spring 1) Remove Indicator housing rear cover. Take care for

jumping out of broken Conston Spring.

2) Remove the E ring Referring to the following sketch.

Remove Conston Pulley and Conston Winding Pulley.

3) Remove two screws on the end of Conston Spring and

remove the broken Conston Spring.

4) Connect the one end of new Conston Spring to Conston

pulley and wind it onto pulley.

5) After completion of winding, the other end of Conston

Spring is to be connected to Conston Winding Pulley re-

ferring to the sketch.

6) Hoist up the float to top position by using hoisting handle

and lock it at the top.

7) Wind 2 or 3 rotation for Conston Winding Pulley. for ad-

ditional winding.

8) Insert the Knock pins to fix the angle of Conston Pulley

and Conston Winding Pulley.

9) Hold the hoisting handle and release the lock of float

movement. Descend the float to the bottom position.

10) Close the Indicator housing rear cover properly.

11.6 Connection of Tape-Wire Joint Tape-Wire Joint type is delivered for Floating Roof Tanks,

Spherical High Pressure Tanks and Gas Holder Tanks. The

measuring tape is used for half way and stranded wire is used

for another half way.

Tape and wire have been already connected by Tape-Wire

Joint Piece for new delivery. Adjust the connecting length

observing the following;

1) The Tape-Wire Joint Piece is to locate below the outer

guide elbow even when the float stays at the bottom of

tank.

2) The Tape-Wire Joint Piece is to locate above the indica-

tor even when the float stays at top of tank.

3) Short wire version (Approx. 30 cm) is also manufactured

for High Pressure application and/or other special orders.

In this case, the tape is to be mounted normally and the

top end wire is to be connected to float.

In case that the Tape and/or wire is to be replaced, connect

them to Tape-Wire Joint Piece by the following procedure;

a. Connection of Tape

1) Remove two screws of Tape-Wire Joint Piece which lo-

cate tape connecting portion and remove the fixture.

2) Cut the tape at approx. 2 mm from the hole edge.

3) Fix the tape onto Tape-Wire Joint piece by using this in-

ner hole first.

4) Insert suitable sharp device into second (outer) hole of

Tape -Wire Joint piece to make a hole on tape.

5) Insert and tighten the screw in second hole.

- 15 -

b. Connection of Wire

1) First, the end of wire is to be arranged in turned shape. Turn the end of Measuring wire by approx. 30 mm and tighten by a

sleeve.

2) Remove the large screw of Tape -Wire Joint piece.

3) Insert the rounded portion of measuring wire into Tape-Wire Joint piece.

4) Observing from the screw hole, insert Spring Pin from the side of Tape -Wire Joint piece to hook the measunng wire.

5) Put and tighten the screw.

12. CAUTIONS FOR INSTALLA- TION AND MAINTENANCE

1) Install the float apart from the inlets of liquids and agita-

tor blades to avoid the influences caused by the direct

contact with moving or splashing liquids.

If the situation does not permit, provide with baffle or

protective pipe.

Without these protective measures, the tape or wire might

be broken due to the stirring of the float caused by the

turbulences.

It is highly recommended to hoist the float not to be in-

fluenced from above during such occurrence.

2) For wet gases, the condensates may accumulate inside

the protection pipe.

Liquids or water accumulated inside the indicator might

cause corrosion and lead to malfunctioning of the in-

strument. Drain the condensates regularly using the drain

plug at the bottom of indicator.

13. SERVICE NETWORK Contact the following for service and spare parts supply etc.

TOKYO KEISO CO., LTD.,

Overseas Department

Shiba Toho Bldg.,

1-7-24, Shibakoen, Minato-ku, Tokyo, 105-8558.

TEL: +81-3-3431-1625

FAX: +81-3-3433-4922

Home page address:

http://www.tokyokeiso.co.jp

E-mail address:

[email protected]

14. PRODUCT GUARANTEE Unless otherwise specified, the product warranty shall be as

follows:

Duration: 18 months after delivery or 12 months after start of operation

whichever comes first.

Scope of warranty: Any damages arising from our design, manufacture and/or

materials.

Enforcement of warranty: Our warranty shall be fulfilled when defensive parts have

been replaced by new ones or repaired.

We shall not be responsible for any secondary damages aris-

ing from the defects of this Product.

tokyo level gauge ft 1000_im l541 5e

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