Vestil SCALE-S User Manual

LP7510
Weighing Indicator

User’s Manual

Edition:01-081008

Locosc Precision

■ Load Cell ■ Controller ■ Scale

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Preface

Thanks for using LP7510 Weighing indicator,
ALL products are been strictly tested and inspected
before shipment. You will benefit from its strong
function and good quality.

Locosc is devoted to weighing technology
development, industrial scales produce and technical
service. If you have any suggestion on our product, do not
hesitate to contact us. Contact info. Is as bellows:

LOCOSC NINGOBO PRECISION TECHNOLOGY CO.,LTD
Website: www.locosc.com
E-mail: [e-mail]
Tel: [phone]
Fax:[phone]
Add.: No.137 Zhenyong RD. Yongjiang. Ningbo.China

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LIST

1 Safety instructions----------------------------------------------------- 4

1．Safety instructions---------------------------------------------------- 4
2．Notice for battery use------------------------------------------------ 5

2 Main function and technical parameter-------------------------- 6

1．Main function----------------------------------------------------------- 6
2．Technical parameter------------------------------------------------- 6

3 Installation and connection----------------------------------------- 7

1．Installation instructions----------------------------------------------- 7
2．Wire connection-------------------------------------------------------- 7
2．1．Power connection------------------------------------------------- 7
2．2．Load cell connection---------------------------------------------- 8
2．3．Serial interface------------------------------------------------------ 8
2．4．I/O card connection------------------------------------------------- 10

4 Operation instruction--------------------------------------------------- 12

1． Display and Key instruction---------------------------------------- 12
2． Basic Operation------------------------------------------------------- 14

3. Accumulate function ------------------------------------------------- 16
3． Counting function----------------------------------------------------- 17
4． Animal scale function------------------------------------------------ 18
5． Classifying scale operation ---------------------------------------- 19
6． Second display, print function, computer communication setting

operation --------------------------------------------------------------- 22

5 Wrong information management and daily maintenance-----24
6 Packing list and after-sales service ----------------------------------26

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1 Safety instruction and notice for battery use

safety instruction

For safety operation pls. follow the safety instruction.

WARNING

The Non professional staff can not set. Calibrate, inspect or fix the
the weighing display

WARNING

Pls. make sure the weighing display have good ground in using

WARNING

The indicator is the static and sensitive equipment,
cut off the power when doing electrical connections,
internal components touched by hand is prohibited,
and please take the measure of anti-static.

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Battery use instruction

The Company provided for the maintenance-free and rechargeable
battery , low self-discharge rate, long life, and work temperature -10-40 ℃. The
new battery will make the best effective after two or three complete charge.
Each time charge should keep at 6 to 8 hours, not more than 12 hours. when
use battery-powered, the work time is 20-30 hours when the battery fully
charged, when the indicator showed that "LOBATT", means the battery is
under power. Pls. charge at once.

Charging method：

1. Random specific power adapter plugged into AC power outlet, the

circular DC power supply plug into "DC" jack on the indicator back cover.

2. Open the power switch to "on", power-on self test, go into weighing
status . "batter" status light does not on, in a battery is charging

3. Charging time 6 to 8 hours later , take off the adapter, "battery" light on,
means battery-powered.

Note：

1. In order to keep the battery in best use condition, so suggest that monthly
charge and discharge the battery completely at least once, the method is to use
the indicator until the battery if finished automatically shut down the indicator
and then recharging again.

2. If the battery when not in use for a long time, please take out the
batteries from the indicator in order to avoid battery leakage and damage the
indicator .Do not use the battery for a long time, it is essential to charge the
batter every 2 or 3 month. Or the battery will expire.

3. Pls. make sure the indicator is powered off then change the batteries, or it
will have an impact on the indicator life.

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4. when replace the battery. The correct connection is : connect the red line
to the plugs in red mark; and the black line to the plugs in black mark, Be sure
wiring is correct, or it will cause damage to load cell, explosive, and the main
board damage

5. Our Company only responsible for approved the standard battery and
power adapter by our company. And not take any responsibility for any damage
by the accessories offered by third-party.

2 Main functions and parameter

2.1 main functions：
Weighing function:

Zero, gross, net, accumulating, printing, counting, animal -weighing.
Toggle operation: kg/lb

Options:

Pinter
RS232/RS485 serial interface or second display
Classifying scales (with I/O card)

2.2 technical parameter

Accuracy class 6000 e
Resolution display: 30, 000 ADC: 2,000,000
Zero stability error TK
Span stability error TK
Conversion time 50 ms
Sensitivity (internal) 0.12 μV /count
Input voltage -30~30mV DC
Excitation circuit 5 VDC, 4 wire connection, all strain gauge,

< 0.1μV//K

0

< ± 6 ppm//K

spn

min. 50Ω, e.g.: 6 load cell of 350Ω

AC power AC100~250V
DC power DC6V/4Ah rechargeable batter,700mA。

Operation temperature - 10 °C ~ + 40 °C
Storage temperature - 40 °C ~ + 70 °C

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3 Installation and connection

3.1 Installation method

There are 3 installation method for LP7510
1． Wall mounting: Use screw M5 to fix the base of the weighing

display to the wall

2． Table mounting：Adjust the elevation of the weighing display

and the base. And then put it on the table.

3． Column mounting：Take off the base, then use screw M8 to fix

the feet to the column

3.2 Connection

3.2.1 Supply power connection

2 kinds of power supply : One is AC 100-240V; another is in-built

storage battery DC supply power, with charger.

AC powered connection method:

1. Open the back cover of the weighing display. And take off the
Water-proof connector with AC mark. And insert the equipped power
Line insider the back cover.

2. Fix the 3 core line to 5 bit terminal block J1 on the back cover AC
power board. Shown as the below picture.

J1 pin Pin symbol AC supply power

1 GND Power ground line（yellow）
2 L Power fire line（brown）
3 N Power zero line（blue）

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Built-in rechargeable connection method:
Open the back cover of the weighing display controller. Connect

the red lines of the terminals to battery terminal (positive) with red mark;
Black line connect battery terminals(negative) with black mark.

3.2.2 Connection of load cell and indicator

1. Weighing display of the incentives voltage for the load cell is 5VDC, the

largest output current 120mA, maximum connect 6 pcs 350-ohm load cell;

2. Load cell (or the signal cable for the junction box) is connected with 5 bit
Connection terminal ( J2) on the weighing display circuit-board。

3. Open Weighing display controller back cover, insert signal line into the
water-proof joint with "Load cell" signs. And conect signal cable to terminals J2,
and make sure screw fixed tightly. Connection as below drawing:

Weighing display
Load cell
+EXC + voltage
+IN + output signal
HD ----------- Shielded wire

-IN - output signal

-EXC -IN HD +IN +EXC -EXC - voltage

3.2.3 Serial interface connection method(option)

To connect with computers, second display, printer, and other communications
equipment, Pls. purchase RS232 with DB9 joint and COM port together with
the indicator. better choose the shielded twisted-pair. Length no longer than 15
meters.

1. Through RS232 or RS485 interfaces can be connected to the big screen;

2. Through RS232 or RS485 interfaces can be connected to the computer;

3. Through RS232 or RS485 interfaces can be connected to a printer and have
printing function.

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4. Serial communication interface at the back of the display controller marked
the RS232-joint BD9 as the below drawing:

5 4 3 2 1

9 8 7 6

Pin function and definition as bellows:

DB9 joint Definition Function

2 TXD Sending data
3 RXD Receiving data
5 GND Ground interface
6 V+ Printer power ( positive)
8 V- Printer power( negative)

Note： Only 2 pin and 5 pin connecting with second display

5. Serial interface reception command：

RS232COM serial interface can receive simple ASCII command. And
Command word and role as follows:

Command Name Role
T Tare off command Save and clear tare
Z Zero command Zero the gross weight
P Print command Print the weight
G Gross/net weight shift

Gross/net weight shift

command
R Read gross/ net weight Read gross/net weight
6．Continuous output：

Reaction of command “R” are same as continuous output

, ,

R F

S 1 S 2 S 3 Data S 4

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