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USB BUTTON CELL FOR FORCE MEASUREMENT

LCCU21 Series

LCCU21N100 LCCU21N200 LCCU21N500 LCCU21KN001

3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo

170-0013 JAPAN

Tel: [81](3)5391-6132 Fax: [81](3)5391-6148

1. OUTLINE

Check the following packing contents before use.

- Main unit (load cell, cable and plastic case) ............................... 1

- Mounting holder

APX-4036220: For LCCU21N100 or LCCU21N200

APX-4036221: For LCCU21N500 or LCCU21KN001

- USB cable ................................................................................. 1

- Instruction manual (this sheet) .................................................................. 1

Plastic case

Load cell

Main unit

Mounting holder USB cable

2. INTRODUCTION

The LCCU21 series is a compact and light compression digital load cell

for force measurement. These can be used for the load distribution

measurement, compression measurement and etc. Also, connecting

the load cell to a computer using the USB cable allows for easy

measurement.

3. SOFTWARE FOR MEASUREMENT

By using the "WinCT-DLC" software for measurement, the measurement data can

easily be confirmed on a computer.

"WinCT-DLC" can be downloaded from A&D's website (https://www.aandd.jp).

4. SPECIFICATIONS

Model No.

LCCU21N100 LCCU21N200 LCCU21N500 LCCU21KN001

100 N

200 N

500 N

Rated capacities

(10.20 kg)

(20.39 kg)

(50.99 kg)

100.00

200.00

500.00

Rated output

0.50 (0.5%)

1.00 (0.5%)

2.50 (0.5%)

Combined error

0.5 % of R.O.

Supply voltage

DC 5 V (USB bus power)

Power

Average current

Less than 50 mA

consumption

Zero balance

±2 % of R.O.

Temperature effect on zero

0.6% of R.O. / 10°C

Temperature effect on span

0.6% of LOAD / 10°C

Compensated temperature

0 °C to 70 °C

range

Permissible temperature

-10 °C to 80 °C

range

Maximum safe overload

150 % of R.C.

A/D conversion rate

100 times / s

Select from None, 0.7, 1.0, 1.4, 2.0, 2.8, 4.0, 5.6, 8.0,

Digital filter

11.0 Hz (default value: 1.0 Hz)

Resonance frequency

45 kHz

55 kHz

30 kHz

*1, *2

From load cell to case: 2 mm, 2 m length

Cables

USB cable (accessory): 4 mm, 1.5 m length

Dustproof / waterproof

IP64 compliant

Weight

Approx. 50 g

Approx. 55 g

Communications standard

Conformant to USB Ver. 2.0 Full Speed

USB connector

micro-B type

Baud rate

38400 bps

Character bit length

8 bit

Parity

Even

Communication

settings

Stop bit length

1 bit

Terminator

CR LF

Code

ASCII

*1: Reference value *2: Load cell only *3: Main unit (load cell, cable, plastic case)

1WMPD4003374C

5. INSTALLATION

5.1. ATTACHING THE LOAD CELL

Attach the load cell to a rigid and flat base (the fixed surface). If there

is slope or distortion on a part of the base, it affects the measurement

accuracy.

The mounting surface is gray area on the bottom of the load cell in the

figure.

Do not apply load to the concavity of the center of the bottom ( mesh

area).

Don't defile with adhesive on mesh area.

.... 1

Mesh area : Don't

apply load and

don't defile with

adhesive.

Gray area :

Mounting surface

Clean the mounting surface before attaching the load cell.

Fix the position of the load cell using adhesive or the mounting holder.

Adhesive used

Use the cyanoacrylate adhesive.

Push gently the load cell so as to keep the position. Paste the

adhesive to the place contacting the fixed surface and outer

circumference of the load cell. Hold the load cell until maintaining

the position. Do not apply excessive load and don't defile with

adhesive on mesh area.

Peel and shave adhesive using cutter and etc. when removing the

load cell. Don't hit and shock to the load cell when removing it. Note

injury and damage of the load cell in removing it.

Example of the load cell installation

Adhesive used

Paste the adhesive to the place

contacting the fixed surface and

outer circumference of the load cell.

1 kN

(102.0 kg)

1000.0

5.0 (0.5%)

Mounting holder used

Put the load cell into the mounting holder. Fix them.

Note M3 bolts are not included in accessories.

Example of the load cell installation

Mounting holder used

M3 bolts (2 pieces)

Mounting holder

Load cell

Mounting holder

35 kHz

When using the load cell by securing the plastic case, secure it as

shown in the figure below using the two installation holes.

Note M3 bolts are not included in accessories.

M3 bolts (2 pieces)

Use the load cell with the load cell and computer at the same potential.

Charging with the load cell may cause malfunctions.

Specifically, take measures such as grounding the load cell.

Grounding example

Mounting holder

Outlet with grounding

terminal

Grounding

line

5.2. LOADING TO THE LOAD CELL

Load a vertical load to the load cell indicated in the figure below. Avoid

eccentric load, horizontal force and moment.

Direction of force

Apply load to the load cell through a rigid surface.

5.3. CAUTIONS

Avoid a shock and excessive force to the load cell.

Keep a constant temperature using insulation, when the load cell is

installed in a place exposed to direct sunlight or radiant heat.

Handle the load cell cable gently. Do not pull it when using the load cell.

Prevent the plastic case from getting wet.

Only the provided USB cable should be used with this load cell. Using a

USB cable other than the provided USB cable may prevent the load cell

from making proper measurement due to the effect of noise.

6. COMPUTER CONNECTION PROCEDURE

1) Connect the device to the computer using the provided USB cable.

2) Select the device manager on the computer.

3) Click the "Ports (COM & LPT)".

4) Confirm the COM Port number displayed. The numerical value indicated

by x in "USB Serial Port (COM x)" indicates the COM Port number.

If multiple load cells are simultaneously connected to the computer

without confirming the COM Port number, COM Port identification

becomes difficult. Confirm the COM Port number one by one beforehand

when connecting.

5) Select the "Port Settings" tab in the "USB Serial Port (COM x) Properties",

then select "Advanced".

6) In the "BM options", set the "Latency Timer (msec)" under 10 (reccomended

value is 3). If it is not to set, a communication delay may result.

4 If the COM Port number cannot be displayed due to failure in installing

the driver, refer to the website of Future Technology Devices

International. Ltd. to install the driver.

7. COMMAND LIST

In this document, only typical commands are discribed. To reference other

commands and details of those commands, download the "LCCU21 WEB

INSTRUCTION MANUAL" from A&D's website.

Host side

Items

transmission

LCCU21 side response command

command

RFMVXXXXXXXX<CR><LF>

Floating point type

RFMV<CR><LF>

XXXXXXXXX is the floating point type

measurement value reading

measurement value

Floating point type

RCFMXXXXXXXX<CR><LF>

measurement value

RCFM<CR><LF>

XXXXXXXXX is the floating point type

sequential reading

measurement value

US,XXXXXXXXX

N<CR><LF>

Fixed point type

RLMV<CR><LF>

XXXXXXXXX is the fixed point type

measurement value reading

measurement value

Host side

Items

transmission

LCCU21 side response command

command

Fixed point type

US,XXXXXXXXX

measurement value

RCLM<CR><LF>

XXXXXXXXX is the fixed point type

sequential reading

measurement value.

Stop sequential

STOP<CR><LF>

reading

Response when command error occurs

Items

LCCU21 side response command

Format error

? <CR><LF>

Setting value error

V<CR><LF>

8. LED DISPLAY

Orange

TX (sending),

Yellow

Blue

Power (power supply)

9. MAINTENANCE

Remove all dirt and dust from the load cell, and always use it in

a clean environment.

When cleaning, use an air blower.

10. DIMENSION

(Number) : Reference value.

(B)

Load cell

2, length: 2m

(93)

is a space (0x20)

N<CR><LF>

is a space (0x20)

RX (receiving),

Plastic case

2- 3.5

Thickness=1.5

2- 3.5

Stainless steel

USB connector slot

Unit: mm