A&D LCC12T010 Manuel utilisateur

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English

Note This manual is subject to change without notice at any time to improve the

product. No part of this manual may be reproduced, transmitted, transcribed, or

translated into any language without the prior written consent of A&D Company

Ltd.

Product specifications are subject to change without any obligation on the part

of the manufacturer.

1. LCC12 Series Weigh Modules

LCC12T010 (Rated capacity 100 kN )

LCC12T020 (Rated capacity 200 kN )

LCC12T030 (Rated capacity 300 kN )

2. Introduction

The LCC12 series are stainless steel weigh modules and are composed of a

compression load cell with a self-aligning function and mount fixtures with

built-in anti-vibration mechanism/lift-off protection mechanism.

As the rated capacity range is from 100 kN to 300 kN, the LCC12 series are

optimum for large tank scales.

The LCC12 series can be used in severe environments, equivalent to IP68, as

the load cell is hermetically sealed.

The only required adjustment is checking the stopper units, which allows easy

installation and maintenance.

Being compact and lightweight, the LCC12 series can be installed almost

anywhere.

Consider the system design and installation carefully because for precision

weighing, the load cell is more sensitive. Read this instruction manual carefully,

for correct installation and precision weighing.

1WMPD4000785B

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3. Specifications

Rated capacities.....................................100 kN, 200 kN, 300 kN

Rated output...........................................2mV/V±0.1%

Maximum safe overload .........................150%R.C.

Permissible horizontal force ...................75 kN

Permissible lifting force...........................80 kN

Combined error ......................................±0.03%R.O.

Zero balance ..........................................±1%R.O.

Compensated temperature range...........-20°C to 60°C

Minimum excitation voltage ....................5VDC

Recommended excitation voltage ..........5 to 12VDC

Maximum excitation voltage ...................15VDC

Input terminal resistance ........................800Ω±80 Ω

Output terminal resistance......................2200 Ω±10 Ω

Insulation resistance...............................5000M or greater Ω at 50VDC

Temperature effect - Zero.......................0.019%R.O./10°C Typ.

Temperature effect - Span......................0.010%R.O./10°C Typ.

Cable diameter/ length ...........................φ8/12m

Dustproof/Waterproof .............................IP68 (100h at 1.5m immersion)

Cable connection color

Red................................................Excitation +(Input)

White .............................................Excitation -(Input)

Green ............................................Signal +(Output)

Blue ...............................................Signal -(Output)

Yellow............................................Shield

4. Parts Description

Stopper bolt

(One each on the

left and ri

ht side

)

Upper mount fixture

(Maximum movable distance: ±5 mm in all directions)

Anti-vibration/lift-off

rotection sto

er unit

Lower mount fixture

Load cell

Anti-vibration/lift-off protection

stopper unit

1WMPD4000785B

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5. Installation

1. Align and machine the mounting holes on the platforms to secure the upper and

lower mount fixtures, and on the brackets for a tank.

2. Insert a jack between the platform and tank and raise the tank to install the weigh

module.

3. While aligning the platform, the bracket on the tank, and the weigh module, lower

the tank and attach the weigh module temporarily using the bolts.

4. Confirm that there is a clearance between the stopper bolt of the

anti-vibration/lift-off protection stopper unit and the upper mount fixture. If the

stopper bolt and the upper mount fixture are in contact, raise the tank slightly and

fine adjust the position of the upper or lower mount fixture.

•Confirm that there is a clearance as

shown to the left.

•If the stopper bolt is in contact with the

upper mount fixture, fine adjust the

position of the upper or lower mount

fixture.

5. Confirm that the load cell stands perpendicularly. If it is tilted (to an angle of ±1°,

great enough to identify by visual inspection), raise a tank slightly and fine adjust

the position of the upper or lower mount fixture. At this time, pay close attention

to the clearance around the stopper bolt.

6. Remove the jack. Secure the weigh module using the bolts

7. If the stopper bolt was removed for convenience when installing the weigh

module, attach it so that there is a clearance of 5 mm between the bolt head and

the upper mount fixture as shown below. Fasten the nut securely so that it will

not become loose.

Stopper bolt

Upper mount fixture

Clearance Clearance

Make sure that the clearance is 5 mm. Fasten

the nut securely so that it will not become loose.

1WMPD4000785B

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6. Precautions

Design the structure to install the load cell strong enough to withstand the load.

Make the platform strong enough to withstand the load.

Protect the load cell from direct sunlight when the system is installed in the open

air.

If the load cell may be heated by radiated heat or hot air, take measures against

heat.

Leave some slack in the load cell cable so that it will not be pulled.

Install the load cell cable using conduit or flexible tubing.

Separate the load cell cable from any power line.

Connect the wiring correctly.

Red......... Excitation+ (Input) Green......Signal+ (Output)

White ...... Excitation- (Input) Blue.........Signal- (Output)

Yellow..... Shield

Turn off the indicator and other instruments before attaching the load cell. Check

the connection before operating the load cell.

Do not input excessive excitation voltage above the maximum. It will cause

damage to the load cell.

Avoid shock and overload to the load cell.

When welding is executed, ground the earth line and disconnect the load cell

cable from the indicator to protect the load cell and indictor from the welding

current.

7. Maintenance

Check the following items.

Is there the appropriate clearance?

Is there a foreign substance such as mud at the clearance?

Is there a foreign substance on the load cell and the mount fixtures?

Are there loosened bolts?

Is there slack in the load cell cable?

Is there a connection problem?

Is there any current leakage?

1WMPD4000785B

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8. Dimensions

1WMPD4000785B

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