Excell Precision Scale DIGITAL HIGH PRECISION WEIGHING SCALES User Manual

EXCELL PRECISION CO., LTD.  
DIGITAL HIGH PRECISION  
WEIGHING SCALES  
USER INSTRUCTIONS  
© Excell Precision Limited 2004. All rights reserved Worldwide.  
The information contained herein is the property of Excell Precision Limited and is  
supplied without liability for errors or omissions. No part may be reproduced or used  
except as authorised by contract or other written permission. The copyright and the  
foregoing restriction on reproduction and use extend to all media in which the  
information may be embodied.  
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TABLE OF CONTENTS  
BEFORE USING THE SCALE.....................................................................................................3  
PREPARING TO USE THE SCALE.............................................................................................3  
INTRODUCTION..........................................................................................................................4  
1. FEATURES...........................................................................................................................4  
2. SPECIFICATIONS ................................................................................................................5  
3. POWER CONSUMPTION.....................................................................................................5  
4. LOW BATTERY WARNING...................................................................................................5  
LCD DISPLAY SYMBOLS...........................................................................................................6  
KEYBOARD FUNCTION .............................................................................................................7  
OPERATION ................................................................................................................................8  
1. DISPLAY BACKLIGHT..........................................................................................................8  
2. ZERO....................................................................................................................................8  
3. WEIGHING MODE................................................................................................................8  
(1). Units Selection................................................................................................................8  
(2). Totalising.........................................................................................................................8  
I. Weight Totalising ........................................................................................................9  
II. Recall Totalised Weight Values...................................................................................9  
III. Clear Totalised Weight Values....................................................................................9  
(3). Deduction of the Container Weight...............................................................................10  
I. The weight of the container is unknown ( Tare ).......................................................10  
II. Recall the semi-auto tare value................................................................................10  
III. Clear the semi-auto tare...........................................................................................10  
IV. The weight of the container is known (Pre-set tare) .................................................11  
V. Recall the pre-set tare value.....................................................................................11  
VI. Clear the pre-set tare value......................................................................................11  
(4). Check Weighing............................................................................................................12  
I. Pre-set the Low limit value, High limit value, and the buzzeroperation.............12  
II. Pre-set the Low limit value only................................................................................13  
III. High/OK/Low indications ..........................................................................................13  
IV. Recall the check weighing setting ............................................................................13  
V. Clear the check weighing settings............................................................................13  
4. COUNTING FUNCTION .....................................................................................................14  
(1). Sampling.......................................................................................................................14  
(2). Totalising.......................................................................................................................14  
(3). Check Weighing............................................................................................................14  
CONFIGURATION SETTINGS ..................................................................................................15  
1. CHECK-WEIGHING CONFIGURATION .............................................................................16  
2. RS-232 SETTING ...............................................................................................................17  
3. EXIT CONFIGURATION SETTINGS...................................................................................18  
RS-232 AND RELAY OUTPUT..................................................................................................19  
1. RS-232 OR SERIAL PRINTER OUTPUT ............................................................................19  
(1) RS-232 (25 Pin Dtype) Pin Description .......................................................................19  
(2) RS-232 Interface Format ...............................................................................................19  
(3) Data Format...................................................................................................................20  
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2. RELAY OUTPUT.................................................................................................................23  
(1) Relay Output..................................................................................................................23  
(2) Relay Pin Description ....................................................................................................23  
(3) Connection Illustration ...................................................................................................23  
(4) Power Source Illustration...............................................................................................24  
(5) Connection Setting ........................................................................................................24  
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BEFORE USING THE SCALE  
To enable you to use this scale correctly, we suggest that you read this manual carefully.  
1. Do not use scale in areas with excessive water and dont spray the scale or indicator with  
water when cleaning. Remove all water from the scale and indicator with a clean dry cloth.  
2. The load placed on the platform must not exceed the maximum weighing capacity of the  
scale.  
3. Keep the scale away from high temperatures and damp conditions.  
4. If the scale is not going to be used for some time, please clean it and store it in a plastic bag  
in dry conditions. A desiccant sachet may be included to prevent moisture build up.  
5. If the scale is not going to be used for some time, the internal rechargeable battery should  
be recharged every three months.  
6. Before using the scale after a long period of storage, please ensure that the internal battery  
is fully charged.  
NOTE: Care should be taken not to leave the internal battery on charge  
for too long, as this may decrease the life of battery.  
PREPARING TO USE THE SCALE  
1. Locate the scale on a firm level surface free from vibrations for accurate weight readings.  
2. Adjust the four levelling feet to set the scale platform level using the spirit level bubble  
located on the scale platform frame.  
3. Avoid operating the scale in direct sunlight or drafts of any kind.  
4. Remove any weight that might be on the scale platform before the scale is switched on.  
5. Once the scale has been switched on, it will go through a LCD display test and then re-zero  
to be ready for use.  
6. The scale requires 15~20 minutes warm up before operation to ensure best accuracy.  
7. Please note when the  
be recharged.  
symbol is shown on the display, the internal battery needs to  
8. All goods weighed should be placed in the centre of the platform for accurate weighing.  
The footprint of the goods being weighed should not overhang the edges of the platform.  
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INTRODUCTION  
1. FEATURES  
1. Dual-weighing units: Kilogram (kg) and pound (lb).  
2. Multi-function operation: Full range tare; Pre-tare; Hold function; Net / Gross weight  
display; Simple counting; Preset weight value and quantity value; Adjustable noise filter  
setting from 01 ~ 15 (³ 15,000 division configuration only); Check-weighing configuration.  
3. User-friendly design:  
¨
¨
¨
¨
¨
Auto calibration  
AC / DC power supply  
Large LCD display with built-in backlight  
Auto power-off design to ensure the performance stability  
Double over-load protection  
4. Variable calibration settings depending on the different calibration division:  
¨
Standard division (under 10,000 internal resolution): Capacity and weight calibrations  
are available for accurate weighing.  
¨
High precision division (over 10,000 to 150,000 internal resolution): Linearity, capacity,  
and weight calibrations are available for accurate weighing.  
5. Options  
¨
¨
RS-232 interface  
Relay output  
6. High performance in A/D converter (weighing indicators)  
¨
¨
¨
¨
¨
¨
¨
Input sensitivity: 0.3 µ V/D  
Sample speed up to 16 times / second  
Non-linearity: 0.01 % of full scale  
Input zero range: -1 mv ~ +5 mv  
Input signal range: 1 mv ~ +14 mv  
Load cell excitation: 5V DC ± 5% 100mA  
Load cell drive capacity: up to 4 350 Ω load cells  
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2. SPECIFICATIONS  
The available capacities for selection are different and depend on various models:  
Capacity  
3 kg (6 lb)  
6 kg (12 lb)  
Division  
0.2 g (0.0005 lb)  
0.2 g (0.0005 lb)  
0.5 g (0.001 lb)  
1 g (0.002 lb)  
2 g (0.005 lb)  
5 g (0.01 lb)  
10 g (0.02 lb)  
20 g (0.05 lb)  
50 g (0.1 lb)  
7.5 kg (15 lb)  
15 kg (30 lb)  
30 kg (60 lb)  
75 kg (60 lb)  
150 kg (150 lb)  
300 kg (600 lb)  
600 kg (1200 lb)  
Operating Temperature: 0°C ~ 40°C (32°F ~ 104°F) OIML: -10°C ~ 40°C (14°F ~ 104°F)  
Power Source: AC 110V/220V (±10%) + DC 6V/4.5AH Rechargeable Battery  
Display: LCD, 6 digits, 25 mm (Height), EL backlight  
3. POWER CONSUMPTION  
1. The power consumption is around DC 20 mA (system + load cell), the rechargeable battery  
can be used up to 200 hours.  
2. The power consumption is around DC 67 mA (system + load cell + backlight), the  
rechargeable battery can be used for 60 hours approximately.  
3. The power consumption is around DC 71 mA (system + load cell + backlight + RS-232), the  
rechargeable battery can only be used for 56 hours approximately.  
4. LOW BATTERY WARNING  
Please note when the  
recharged.  
symbol is shown on the display, the internal battery needs to be  
v
The scale will power off automatically without recharging after the low battery symbol  
shows upon for 20 to 30 hours (3 to 5 hours if the backlight is active) on the display. As a  
recommendation, the scale must be fully recharged before operating the scale again.  
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LCD DISPLAY SYMBOLS  
1
2
3
4
5
HIGH : Preset High Limit Weight Value  
OK : The range between Low & High Limit Weight Value  
LOW : Preset Low Limit Weight Value  
kg  
: kgunit  
lb  
: lbunit  
Pcs  
à0ß  
Net  
: COUNTINGmode indicating the number of pieces  
: ZEROindication and platform stable confirmation  
: Net Weight indication  
: Low Batteryindication  
n1  
n2  
n3  
n4  
n5  
: (STABLE) Stableindication  
: ( PT) Pre-set Taremode  
: (M+) Accumulationmode  
.
.
.
.
.
.
.
.
: (  
: (  
) Sample Too Smallindication  
.
.
) Piece Weight Too Smallindication  
Pcs  
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KEYBOARD FUNCTION  
UNITS  
1.  
2.  
3.  
: Units Key to choose the desired unit weight (kg or lb).  
: Preset High & Low Limit value.  
^ /  
:
:
:
Ù Þ Data Entry Key, Þ Backlight Key.  
Þ Print Key to print the total data ; ¿ Þ Confirmation Key.  
Sample Key to set the sample quantity.  
/
¿
4.  
5.  
Pcs  
6.  
: Accumulation Key to add the displayed value into memory.  
: Re-call accumulated or preset high & low limit values or preset tare value.  
: Clear Key to delete the existing accumulated values.  
: Press this key to enter the counting mode.  
: Preset Tare Key.  
M
+
7.  
R
8.  
CE  
.
.
.
.
.
9.  
.
.
.
.
.
10.  
11.  
12.  
PT  
: Zero Key to re-zero the scale.  
0  
: Tare Key to deduct the container weight.  
T
KEYBOARD SYMBOLS:  
.
.
.
.
.
.
.
.
UNITS  
COUNT  
PRE-TATR  
ZERO  
SMPL  
M+  
UNITS  
Pcs  
.
.
M+  
PST  
PT  
Þ
Ù
Ù
0
R
RE-CALL  
CE  
BL  
PRINT  
T
CE  
TARE  
¿
¿
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OPERATION  
1. DISPLAY BACKLIGHT  
^ /  
Press the  
key to choose the desired display backlight mode:  
.
Þ Auto Backlightmode. When the weight is over 10 divisions or any  
key is pressed, the display backlight will be switched on. When the  
weight returns to zero or the weight on platform is less than 10  
divisions, the display backlight will switch off after 5 seconds.  
.
.
Þ Display backlight is on all the time.  
Þ Display backlight is off.  
2. ZERO  
Press the 0key to re-zero the display with no load on the weigh pan. When zero is set,  
the (à0ß ) symbol will be displayed.  
3. WEIGHING MODE  
(1). Units Selection  
UNITS  
1. Press the  
key in the weighing mode to choose the desired weighing unit and the  
display will show the kgor lbsymbol on the top right of the LCD display.  
2. The unit status will be memorized when turning the machine off.  
(2). Totalising  
1. The scale allows the next totalising operation, even when the weight value does not return  
back to zero. The  
key is functional, when the weight value changes by more  
M
+  
than 10 d. The scale will store the totalised weight value after the weight is stable.  
2. The scale can totalise positive or negative weight but not both at the same time. The  
totalised weight store must be reset to zero before it is possible to select positive or  
negative totalising mode.  
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I. Weight Totalising  
DISPLAY  
ACTION  
kg  
.
n
Place the object onto the STABLE  
scale.  
The display shows  
the weight value  
kg  
.
n
STABLE  
Press the M+ key  
The display shows the  
total number of additions  
The total weight totalised  
kg  
shows and the 3rd n”  
.
n
STABLE  
flashes on the display  
n
M+  
v The totalising function can be used up to a maximum of 9999 times before it must be reset.  
The totalising display is limited to 6 digits maximum.  
II. Recall Totalised Weight Values  
R
1. Press the  
key to display the total number of additions and the totalised weight  
value. The 3rd nsymbol located above (M+) icon will flash on the display. The scale will  
return to the weighing mode after 3 seconds.  
v The scale will not display the negative sign -for negative totalised weight values when  
recalling an a totalised weight value, but the negative sign -will be printed out (transmitted  
serially) for each negative weight and negative totalised weight.  
III. Clear Totalised Weight Values  
1. Press the  
values.  
key followed by pressing the  
key to clear the totalised weight  
R
CE  
2. All totals will be lost in the following three circumstances:  
¨
¨
¨
The mode is changed from weighing to counting or vice versa.  
The scale is switched off.  
The weight unit is changed.  
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(3). Deduction of the Container Weight  
I. The weight of the container is unknown ( Tare )  
DISPLAY  
ACTION  
kg  
kg  
Place the container onto the  
scale  
.
.
n
STABLE  
T
Press the  
key when the  
weight is stable.  
Net  
The weight value becomes  
zero and the (Net) symbol is  
displayed  
n
STABLE  
kg  
Place the object into the  
container and the display  
shows the net weight value  
of the object.  
Net  
.
n
STABLE  
II. Recall the semi-auto tare value  
R
T
Press the  
key followed by pressing the  
key Þ The display shows  
the tare weight value.  
III. Clear the semi-auto tare  
When the container is removed from the scale, the display shows the container weight  
T
value with a negative sign. Press the  
symbol will switch off.  
key to reset the scale to zero, and the (Net)  
NOTE:  
v Multiple tare operation Þ Users can continuously increase or decrease the tare value by  
T
pressing the  
key.  
v The total tare value (tare value + pre-set tare value) can equal the full capacity of the scale.  
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IV. The weight of the container is known (Pre-set tare)  
DESCRIPTION  
DISPLAY  
ACTION  
kg  
Press the  
key  
PT  
.
The display shows the weight value  
of the container with the negative  
sign and the (Net) symbol. The  
second nabove the (PT) icon  
indicates the tare is active  
n
STABLE  
Use the Ù key to enter the  
weight value of the container  
followed by pressing the ¿  
key  
kg  
Net  
.
n n  
STABLE PT  
Place the object with the  
container onto the weight pan.  
kg  
The display shows the net  
value of the object  
Net  
.
n
STABLE  
n
PT  
V. Recall the pre-set tare value  
R
PT  
Press the  
key followed by pressing the  
key Þ The display shows the  
pre-set tare value.  
VI. Clear the pre-set tare value  
Press the key followed by pressing the  
PT  
key, then press the  
R
CE  
key to clear the pre-set tare value. The scale resets back to zero, and the (Net) symbol  
and the second nicon (PT) will switch off.  
NOTE:  
v In Tare mode, the Preset tare function is disabled.  
v The scales with two weighing ranges can NOT pre-set the tare value larger than the first  
weighing range. For example: a 30kg scale is set by two weighing ranges. The first range is  
0 to 15kg, and the second range is 15 to 30kg. The pre-set tare value can not be larger  
than 15kg.  
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(4). Check Weighing  
Press the  
key to enter the check weighing function. Press the UNITS key to  
return back to the weighing mode.  
I. Pre-set the Low limit value, High limit value, and the buzzeroperation  
^ /  
Press the  
key to enter the value required and step to the next digit by  
key.  
pressing the  
/
¿
DESCRIPTION  
DISPLAY  
ACTION  
Press the  
the check weighing function  
key to select  
kg  
kg  
.
n
STABLE  
Set the Low limit value”  
Press the Ù key to enter the  
Low limit value. Press the ¿  
key to confirm the setting  
.
n
STABLE  
kg  
Buzzer Setting  
Set the High limit value”  
.
n
STABLE  
C
C
A B  
Press the Ù key to enter the  
A Þ  
kg  
High limit value. Press the ¿  
key to confirm the setting  
0 = When the weight is stable the  
buzzer sounds and the High, OK or  
Low icon is displayed.  
.
n
STABLE  
kg  
1 =. The High, OK or Low icon is  
displayed irrespective of the stability  
of the weight. The buzzer sounds  
only when the weight is stable.  
Set the buzzeroperation  
n
STABLE  
Press the Ù key to set the  
kg  
buzzer operation. Press the ¿  
key to confirm the setting  
2 = The buzzer sounds and the  
High, OK or Low icon is displayed  
irrespective of the stability of the  
weight.  
n
STABLE  
kg  
The scale returns to the  
weighing mode.  
B Þ  
.
0 = The buzzer does not sound.  
n
STABLE  
1 = The buzzer sounds at the OK  
status.  
︿ key = Upward key (0~9 digit entry)  
2 = The buzzer sounds when the  
weight of the object is lower or  
equal to the lower limit value, or  
higher than the upper limit value.  
¿
key = Confirmation key  
(move the cursor one step to the right)  
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II. Pre-set the Low limit value only  
After completing the Low limit value setting, the display shows  
key to complete the setting, and the display shows  
.
. Press the  
kg  
.
n
STABLE  
v When users only pre-set the Low limit value, the buzzer setting is fixed at:  
III. High/OK/Low indications  
LOW  
OK  
HIGH  
½ïïïïïïï½ïïïïï  
½
High limit  
value  
Low limit  
value  
10d  
IV. Recall the check weighing setting  
1. Press the  
key followed by pressing the  
R
key to recall the Low limit  
value.  
R
2. Then press the  
3. Then press the  
4. Then press the  
key again to recall the High limit value.  
key again to recall the buzzer setting.  
key again to return the weighing mode.  
R
R
V. Clear the check weighing settings  
R
CE  
1. Press the  
key followed by pressing the  
key, and then press the  
key to clear the Low limit value.  
2. Press the  
key again to clear the High limit value and the buzzer setting.  
CE  
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4. COUNTING FUNCTION  
.
.
.
.
.
.
Press the  
key to enter the counting function. Press the  
key to return back  
UNITS  
.
.
.
.
to the weighing mode.  
(1). Sampling  
DISPLAY  
ACTION  
.
.
.
.
.
.
.
Press the  
key to enter the  
counting fun.ction  
.
.
Pcs  
n
STABLE  
Pcs  
Press  
to choose the  
Pcs  
number of desired items in the  
sample (10, 20, 50 or 100)  
n
STABLE  
Place the sample on the scale  
.
.
.
and press the  
key  
.
.
.
.
.
.
.
Pcs  
After the weight is stable  
The display shows the number  
of items in the sample  
Pcs  
n
STABLE  
NOTE:  
v The larger the sample size, the more accurate the unit weight. (The minimum sample  
weight = 20d)  
v A sample size of 10 pieces gives a typical count accuracy of 95%.  
v A sample size of 50 pieces gives a typical count accuracy of 98%.  
.
.
.
.
.
.
.
.
SAMPLE TOO SMALL (  
) Þ Sample is less than 20 divisions.  
.
.
UNIT WEIGHT TOO SMALL (  
) Þ Unit weight is less than 1/5 of a division.  
Pcs  
Under such conditions, the scale can still work, but may result in lower count  
accuracy.  
(2). Totalising  
Refer to the operation of totalising in the weighing function on page 9.  
(3). Check Weighing  
Refer to the operation of check weighing function on page 13.  
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CONFIGURATION SETTINGS  
Switch on the scale. While the scale is counting backward to zero, press and hold the  
0←  
key until the display shows the software program version number: “  
.  
Release the 0key, the scale enters the configuration setting mode.  
is displayed.  
Press the TARE key  
Press the  
Press the  
Press the  
Ù
Ù
Ù
key  
key  
key  
Press the TARE key  
Press the TARE key  
Press the TARE key  
Þ
Þ
Þ
Þ
Þ
INTERNAL CALIBRATION (LOCKED)  
INTERNAL CALIBRATION (LOCKED)  
INTERNAL CALIBRATION (LOCKED)  
INTERNAL CALIBRATION (LOCKED)  
CHECK-WEIGHING CONFIGURATION  
RS-232 SETTING  
Press the TARE key  
Press the  
Ù
key  
Press the TARE key  
Press the TARE key  
Press the  
Press the  
Ù
Ù
key  
key  
EXIT FROM CONFIGURATION  
SETTINGS  
INTERNAL CALIBRATION (LOCKED)  
INTERNAL CALIBRATION (LOCKED)  
INTERNAL CALIBRATION (LOCKED)  
Press the TARE key  
Press the TARE key  
Press the TARE key  
Press the  
Press the  
Press the  
Ù
Ù
Ù
key  
key  
key  
Þ
Þ
Press the  
Ù
key  
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1. CHECK-WEIGHING CONFIGURATION  
¨
F8 (Hold) affects access to F4. If F8 is set, access to F4 is denied.  
T
^ /  
Press the  
or  
key to select the F4 functionÞ the display shows  
DESCRIPTION  
DISPLAY  
ACTION  
Press the ¿ key to enter the  
check weighing configuration  
Press the ¿ key  
for 5 times to clear  
the configuration  
settings  
kg  
kg  
.
n
STABLE  
Press the Ù key to enter the  
low limit value. Press the  
key to confirm the setting  
¿
.
kg  
n
STABLE  
.
n
STABLE  
Press the ¿ key  
Set the High limit value”  
kg  
.
n
STABLE  
Press Ù key to enter the high  
limit value. Press the  
confirm the setting  
¿
key to  
Buzzer Setting  
kg  
C
A B  
C
.
n
STABLE  
A Þ 0 = When the weight is stable  
Set the buzzeroperation  
the buzzer sounds and the High,  
OK or Low icon is displayed.  
kg  
n
STABLE  
Press the Ù key to set the  
1 =. The High, OK or Low icon  
is displayed irrespective of the  
stability of the weight. The  
buzzer sounds only when the  
weight is stable.  
buzzer. Press the  
confirm the setting  
¿
key to  
kg  
n
STABLE  
The scale returns to the  
weighing mode.  
2 = The buzzer sounds and the  
High, OK or Low icon is  
displayed irrespective of the  
stability of the weight.  
B Þ 0 = The buzzer does not sound.  
1 = The buzzer sounds at the  
OK status.  
︿ key = Upward key (0~9 digit entry)  
¿
key = Confirmation key  
2 = The buzzer sounds when  
the weight of the object is lower  
or equal to the low limit value,  
or higher than the high limit  
value.  
(move the cursor one step to the right)  
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2. RS-232 SETTING  
¨
¨
J1 and J3 on the RS-232 interface are connected together (short), when the RS-232  
interface is connected to a computer.  
J2 and J4 on the RS-232 interface arte connected together (short), when the RS-232  
interface is connected to a printer.  
^ /  
T
Press the  
or  
keys to select the F5 function Þ the display shows  
DESCRIPTION  
DISPLAY  
ACTION  
Press the ¿ key  
0
1
2
3
No transmission  
Stable transmission  
Transmission mode  
Continuous transmission  
Press the ¿ key to  
transmit (simple mode)  
Press the Ù key to set  
the transmission mode  
Then press the ¿ key  
to confirm the setting  
4
5
Press the ¿ key to  
transmit (complete mode)  
Stable transmission  
(totalising mode). The  
format is as same as  
Baud rate default setting  
3.  
Press the Ù key to set  
the baud rate (1200, 2400,  
4800 or 9600)  
Then press the ¿ key  
to confirm the setting  
6
EZ-2 printer mode  
The format is as same as  
4.  
7
8
EZ-2 printer mode.  
Configuration complete  
Press the ¿ key to  
transmit  
Press the ¿ key to  
transmit. The format is the  
same as  
1 & 2.  
v When choosing EZ-2 printer mode, the baud rate should be set to 9600 Baud  
17  
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EXCELL PRECISION CO., LTD.  
3. EXIT CONFIGURATION SETTINGS  
T
^ /  
Press the  
or  
key to select the F6 functionÞ the display shows  
DISPLAY  
ACTION  
Press the ¿ key  
Scale reverts back to the  
weighing mode  
18  
V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
RS-232 AND RELAY OUTPUT  
1. RS-232 OR SERIAL PRINTER OUTPUT  
(1) RS-232 (25 Pin Dtype) Pin Description  
˙ J1 - J3 SHORT ; J2 - J4 OPEN (default setting)  
Pin 2 Þ RXD  
Pin 3 Þ TXD  
Pin 7 Þ GND  
˙ J2 - J4 SHORT ; J1 - J2 OPEN  
Pin 2 Þ TXD  
Pin 3 Þ RXD  
Pin 7 Þ GND  
v Please refer to F5 function settings for transmission mode, baud rate setting and data  
format.  
(2) RS-232 Interface Format  
I . Mode : EIA-RS232 Cs  
II . Format :  
1. Baud rate: 1200, 2400, 4800 or 9600  
2. Data bits: 8 BITS  
3. Parity bit:  
4. Stop bits:  
5. Code:  
None  
1 BIT  
ASCII  
Start bit  
Data bits  
Stop bit  
19  
V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
(3) Data Format  
Stable transmission (  
) / Continuous transmission (  
)
Press the ¿ key to transmit (  
)
kg/lb  
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18  
HEAD 1 ,  
HEAD 2 ,  
DATA  
UNIT  
CR LF  
HEAD 1 ( 2 BYTES )  
HEAD 2 ( 2 BYTES )  
OL - Overload , Under load TR - TARE Mode  
ST - Display is Stable  
NT - NET Mode  
US - Display is Unstable  
GS - GROSS Mode  
DATA (8 or 9 BYTES)  
2D ( HEX ) = ( MINUS )  
2E ( HEX ) = . ( DECIMAL POINT )  
UNIT ( 2, 3 or 4 BYTES )  
kg  
lb  
= 6B ( HEX ) ; 67 ( HEX )  
= 6C ( HEX ) ; 62 ( HEX )  
tl.T = 74 ( HEX ) ; 6C ( HEX ) ; 2E ( HEX ) ; 54 ( HEX )  
hkg = 68 ( HEX ) ; 6B ( HEX ) ; 67 ( HEX )  
Transmission example:  
1. The gross weight (+0.876kg) shows as below, after stable: (in the tare mode)  
S
T
,
G
S
,
+
0
.
8
7
6
k
G 0D 0A  
HEAD 1  
,
HEAD 2  
,
DATA  
UNIT  
CR LF  
2. The net weight (-1.568lb) shows as below without weight stability: (Not in the tare mode)  
b 0D 0A  
U
S
,
N
T
,
-
1
.
5
6
8
l
HEAD 1 ,  
HEAD 2,  
DATA  
UNIT  
CR LF  
3. The net weight (+0.876kg) shows as below, after stable: (in the tare mode)  
S
T
,
T
R
,
+
0
.
8
7
6
k
G 0D 0A  
HEAD  
,
HEAD  
,
DATA  
UNIT  
C
LF  
20  
V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
Press the ¿ key to transmit (simple mode)  
S/N  
WT/UNIT ( kg / lb )  
- - - - - - - - - - - - - -  
0001  
0002  
0003  
0004  
0005  
1.0000  
1.0000  
1.0000  
1.0000  
1.0000  
E Press the  
E Press the  
E Press the  
E Press the  
E Press the  
¿
¿
¿
¿
¿
key or the M+ key  
key or the M+ key  
key or the M+ key  
key or the M+ key  
key or the M+ key  
- - - - - - - - - - - - - -  
0005 5.0000  
E Press the  
¿
key for 2 times to printout the total  
Stable transmission (totalising mode)  
S/N WT/UNIT ( kg / lb )  
- - - - - - - - - - - - - -  
0001  
0002  
0003  
0004  
0005  
1.0000  
1.0000  
1.0000  
1.0000  
1.0000  
E scale stable, transmitting  
E scale stable, transmitting  
E scale stable, transmitting  
E scale stable, transmitting  
E scale stable, transmitting  
- - - - - - - - - - - - - -  
0005 5.0000  
E Press the ¿ key for 2 times to printout the total  
EZ-2 printer mode, press the ¿ key to transmit  
(Baud rate must be set at 9600)  
Only prints out the weight value. The proportion of the printed typeface Þ Height : Width = 3:2  
+100.0 kg  
21  
V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
EZ-2 printing mode  
transmit (complete mode)  
(Baud rate must be set to 9600). Press the ¿ key to  
TICKET  
NO .0001  
E
Press the ¿ key or the M+ key  
G
T
PT  
N
1.000kg  
0.000kg  
0.000kg  
1.000kg  
( Blank line x 3)  
TICKET  
G
T
PT  
N
NO .0002  
E
E
Press the ¿ key or the M+ key  
1.000kg  
0.000kg  
0.000kg  
1.000kg  
( Blank line x 3)  
TICKET  
G
T
PT  
N
NO .0003  
Press the ¿ key or the M+ key  
1.000kg  
0.000kg  
0.000kg  
1.000kg  
( Blank line x 3)  
TOTAL NUMBER  
OF TICKETS 0003  
TOTAL  
E
Press the ¿ key twice to print out the total  
NET  
3.000 kg  
( Blank line x 3)  
<Remarks> : G = GROSS  
T = TARE  
PT = PRE-TARE  
N = NET  
22  
V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
2. RELAY OUTPUT  
(1) Relay Output  
Relays function acts as signal output in the check-weighing mode. When an objects  
weight value reaches one of the setting points (HI, OK, LOW), the relay outputs a signal  
through PIN 1, PIN2, or PIN 3. To set the check-weighing configuration by pressing the  
key (in TW & AW models) or enter F4 (please refer to page 12 or 16 for operations).  
(2) Relay Pin Description  
PIN 1 Þ OK  
output  
PIN 2 Þ High output  
PIN 3 Þ Low output  
PIN 4 Þ VDD  
PIN 5 Þ GND  
PIN 6 Þ COMMON  
(3) Connection Illustration  
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V1.0  
SM2020010426  
 
EXCELL PRECISION CO., LTD.  
(4) Power Source Illustration  
The relay circuit board can be supplied either by the external AC power or internal DC  
power.  
Relay powered by external AC power  
PIN4 and PIN5 are connected with AC power source; J1 and J2 OPEN  
Relay powered by internal DC power  
No power source input to PIN4 and PIN5; J1 and J2 SHORT  
(5) Connection Setting  
OK, High, Low can be set at NO (normal open status) or NC (normal close status)  
respectively.  
OKHighLow at NO ( normal open status) Þ default setting  
OKHighLow at NC( normal close status)  
Please use a knife to cut the J3, J4 and J5 not connect (open) and solder the J6, J7  
and J8 connected.  
24  
V1.0  
SM2020010426  
 

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