CAS ERII-6 User manual

ER-II Service Manual
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ER-II SERVICE MANUAL

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< Table of Contents >
1. Introduct on ............................................................................................................................... 4
1.1. Preface .................................................................................................................................... 4
1.2. Precaut on ............................................................................................................................. 4
1.3. Spec f cat ons ...................................................................................................................... 5
1.4. D mens on.............................................................................................................................. 6
1.5. Key & SYMBOLS ON DISPLAY .................................................................................... 7
1.6. Seal ngMethod .................................................................................................................... 8
2. Cal brat on ................................................................................................................................. 10
2.1. General Cal brat on ........................................................................................................ 10
2.1.1. C4 Sett ng ........................................................................................................... 11
2.1.1.1. C4-1 Sett ng ................................................................. 11
2.1.1.2. C4-2 Sett ng ................................................................. 11
2.1.1.3. C4-3 Sett ng ................................................................. 11
2.1.1.4. C4-4 Sett ng ................................................................. 12
2.1.1.5. C4-5 Sett ng ................................................................. 12
2.1.2. SPAN Cal brat on Sett ng (C-3).............................................................. 13
2.1.3. Grav ty Constant Value Sett ng (C-9) ................................................ 13
2.1.4. Cal brat on factor Sett ng (C-10).......................................................... 14
2.1.5. D splay ng Real A/D Value (C-5) .......................................................... 14
2.1.6. Input Funct on Key Code (C-6).............................................................. 15
2.1.7. Percent Cal brat on (C-7) .......................................................................... 16
2.1.8. Battery Cal brat on (C-8)........................................................................... 16
3. The Schemat cs and D agram......................................................................................... 18
3.1. System Block D agram................................................................................................. 18
3.1.1. Ma n........................................................................................................................ 19
3.1.2. Power Part & Back_L ght........................................................................... 20
3.1.3. Key Part ............................................................................................................... 21
3.1.4. D splay Dr ver(Ma n PCB) & REAR D splay...................................... 22
4. Exploded V ew Load Cell draw ng ............................................................................... 23
4. Load Cell draw ng.................................................................................................................. 24
5. Part Locat on............................................................................................................................ 25
5.1. Ma n PCB (Top) ................................................................................................................ 25
5.2. Ma n PCB (Bottom) ........................................................................................................ 26
5.3. Rear D splay PCB (Top)............................................................................................... 27

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5.4. Rear D splay PCB (Bottom)....................................................................................... 27
6. Error Messages & Solut on............................................................................................... 28
7. Part L st....................................................................................................................................... 29

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1. Introduct on
1.1. Preface
Thank you for purchasing of our CAS scale.
This scale has been designed with CAS reliability, under rigid quality control
and with outstanding performance.
WE hope that your departments en oy with high quality of CAS product.
This manual will help you with proper operations and care of the EB series.
Please keep it handy for the future references.
1.2. Precaut on
•Make sure that you plug your scale into the proper power outlet.
•Place the scale on a flat and stable surface.
•Plug into a power outlet 30 minutes before operations.
•Keep the scale away from strong EMI noises may cause incorrect weight readings.
•This scale must be installed in a dry and liquid free environment.
•Do not sub ect the scale to sudden temperature changes.
•Do not sub ect the platter to sudden shocks.
•If the scale is not properly level, please ad ust the 4 legs at the bottom of the
scale (turn legs clockwise or counterclockwise) so as to center the bubble of the
leveling gauge inside the indicated circle.

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1.3. Spec f cat ons
ERII – 6 ERII – 15 ERII – 30
Capac ty
Dual Interval
3 kg / 0.001 kg
6 kg / 0.002 kg
Dual Interval
6 kg / 0.002 kg
15 kg / 0.005 kg
Dual Interval
15 kg / 0.005 kg
30 kg / 0.01 kg
Internal
Resolut on 1 / 60,000 1 / 60,000 1 / 60,000
External
Resolut on 1 / 3,000 1 / 3,000 1 / 3,000
D splay Three LCDs with 6 digit
Symbols Charge, stabilization, zero, tare, lower battery, NET
backlight (LCD version only)
Interface RS – 232C (Printer Option)
Keys
Number(0~9), Direct PLU(M1~M4),Clear, ZERO, TARE,
*, +(add), Power ON/OFF
Funct on
•Direct PLU(4) / Indirect PLU(200)
•Price computing scale
•Low Battery Indication function
•Auto Power Off, Auto BL off
•BL brightness control function
Product S ze 304(W) X 324(D) X 112(H)
Platter S ze 290(W) X 209(D)
Operat ng
Temperature
- 10 °C ~ +40 °C
Power 12 V Adaptor or PB BATTERY (6V3.6AH/20HR)
Opt ons Recharge Battery, BACK LIGHT

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1.4. D mens on


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1.5. Key & SYMBOLS ON DISPLAY
■Table : Key Functions
Table : Key FunctionsTable : Key Functions
Table : Key Functions
KEYS FUNCTIONS
Numbers import
Direct PLU keys
Function key, PLU restore,
P mode (User s Set-up Mode enter)
Push more than 2 second when using P mode
To make several sales transaction by adding up
To Clear data
To set zero
To set up or clear tare value
To turn on/off the scale or backlight(LCD version only)
■Table : Symbols on Display
Table : Symbols on DisplayTable : Symbols on Display
Table : Symbols on Display
KEYS FUNCTIONS
Weight steady
To adjust zero
Tare on
Backlight on
Low power warning
Used to call a toral price of add up transations

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1.6. Seal ngMethod


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
2. Cal brat on
2.1. General Cal brat on
Pressing and holding calibration switch press [POWER] key to go to calibration mode.
User can move to other mode by using [ZERO] key in the calibration mode.
User also moves to other sub-modes for each mode by using [TARE] key.
Please simply follow below procedure to move to other mode.
(1) Calibration Mode: Pressing and holding “Calibration Switch” press [POWER] key.
(2) It displays “CAL-0” after “CAL”, and it blinks the version of scale three times.
(3) Selecting menu: press [TARE].
(4) ENTER(Setting) : [TARE] key
MODE Funct on
CAL 1 Display normalized AD
CAL 2 Display Keypad infomation-
CAL 3
Weight Setting Mode
“UnLoad” → [TARE] →
“MIDD” → [TARE] after loading for 1/3 weight →
“FULL” → [TARE] after loading for Full weight →
“MIDD” → [TARE] after loading for 1/3 weight → “END”
CAL 4 Option Setting ( Table 1 참조 )
CAL 5 Display filtered Raw AD
CAL 6 Function setting on each Key ( Table 2 참조 )
CAL 7 % Calibration
CAL 8 Battery calibration
CAL 9 Gravity constant
CAL 10
Set calibration factor
“Unit”  [TARE]  select 0, 1 (0:kg, 1: lb)  [TARE]
“CAPA”  [TARE]  select capacity  [TARE]
“MCAPA”  [TARE]  select mid-capacity  [TARE]
“W-dP”  [TARE]  Select Decimal Point  [TARE]
“ 1 d ”  [TARE]  Select division  [TARE]
“Dual”  [TARE]  Enable dual interval (0:disable, 1:enable)  TARE
CAL 11 Set nation(00 : OIML , 01 : NTEP , 02: KOREA)

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< Modes >
2.1.1.C4 Sett ng
2.1.1.1. C4-1 Sett ng
BIT 6~7 Initial Zero range
3 5%
2 10%
1 3%
0 2%
BIT5 Tare Type
0 Proper tare
1 Full Tare
BIT4
BIT 2~3
Successive tare
3 (+), (-) Direction successive Tare
2 (-) Direction successive Tare
1 (+) Direction successive Tare
0 One Time tare
BIT1
BIT0
2.1.1.2. C4-2 Sett ng
BIT7
BIT6 Use PLU Tare 1 Use
BIT5 Use PLU Name
0 Don't use
1 Use
BIT4 Use Daily Total
0 Don't use
1 Use
BIT3 Clear Price
0 Don't clear
1 Clear
BIT2 Clear Tare
0 Don't clear
1 Clear
BIT1 Use Euro
0 Don't use
1 Use
BIT0 Power On Euro
0 No
1 Yes

2.1.1.3. C4-3 Sett ng
BIT7 Dot Type
0 "." dot
1 "," comma
BIT6 Use Preset tare 0 Don't use

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1 Use
BIT5 Use Back light
0 Don't use
1 Use
BIT4 Use Head message
0 Don't use
1 Use
BIT3 Use gram
0 Don't clear
1 Clear
BIT2 Use oz
0 Don't clear
1 Clear
BIT1 Use lb
0 Don't use
1 Use
BIT0 Use Kg
0 No
1 Yes




2.1.1.4. C4-4 Sett ng
BIT7 X
BIT6 X
BIT 4~5 Price round off
3 00, 25, 50, 75
2 00, 10, 20
1 0, 5
0 normal
BIT3 X
BIT2 X
BIT 0~1 Unit / Price
3 1000/1
2 100/1
1 10/1
0 1/1

2.1.1.5. C4-5 Sett ng
BIT7 Use Standby time
0 Don't use
1 Use
BIT6 Price decimal point
7 Special case
6 O.OOOOOO
5 O.OOOOO

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4 O.OOOO
3 O.OOO
2 O.OO
1 O.O
0 O
BIT3 Use Unit message
0 Don't use
1 Use
BIT2 Use Total price window over
0 Don't use
1 Use
BIT 0~1 Print type
3 Don't use
2 DEP-50
1
0




2.1.2.SPAN Cal brat on Sett ng (C-3)
(1) Pressing and holding “Calibration Switch” press [POWER] key.
After “CAL” message blinks three times and shows the version of scale, it displays “CAL 1”
message.
(2) Press [ZERO] to display “CAL-3”.
(3) Press [TARE] key and then it displays “zero ” message.
(4) Press [TARE] key and then it displays “midup” message
(5) Load middle weight (ex:1/3 full capacity) on the platform
(6) Press [TARE] key and then it displays “span ” message
(7) Load full weight on the platform
(8) Press [TARE] key and then it displays “middn” message
(9) Load middle weight (ex:1/3 full capacity) on the platform
(10) Press [TARE] key and then it display “CAL 3” message
2.1.3. Grav ty Constant Value Sett ng (C-9)
Current gravitational Acceleration value is set to 9.7994 m/s2 .
(1) Pressing and holding “Calibration Switch” press [POWER] key.
After “CAL” message blinks three times and shows the version of scale, it displays “CAL-1”
message.
(2) Press [ZERO] to display “C-9”.

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(3) Press [TARE] key, and then “ G-1“ message and “9.7994” will be shown. The first digit,”9”
will blink.
(4) Input a gravitational acceleration value by using [ZERO] key.
(5) Press [TARE] key, and then “G-2“ message blinks.“9.7994” will be shown. The first
digit,”9” will blink.
(6) Input a gravitational acceleration value by using [ZERO] key.
(7) Press [TARE] key to save the gravitational acceleration value, and “C-9 ” message will be
shown.
2.1.4.Cal brat on factor Sett ng (C-10)
(1) Pressing and holding “Calibration Switch” press [POWER] key.
(2) After “CAL” message blinks three times and shows the version of scale, it displays “CAL-1”
message.
(3) Press [ZERO] to display “C-10”.
(4) Press [TARE] key, and then “UNIT “ message and “0” will be shown. The first digit,”0”
will blink. It means calibration unit is “kg” (0 : kg, 1 : lb)
(5) Input a calibration unit by using [ZERO] key.
(6) Press [TARE] key, and then “CAPA“ message blinks.“0015” will be shown. The first digit,”0”
will blink. It means a full-capability is “15 (calibration unit, kg or lb)”
(7) Input a capability by using [ZERO] key.
(8) Press [TARE] key, and then “MCAPA“ message blinks.“0005” will be shown. The first
digit,”0” will blink. It means a mid-capability is “05 (calibration unit, kg or lb)”
(9) Input a capability by using [ZERO] key.
(10)Press [TARE] key, and then “W-dP “ message blinks.“3” will be shown. The first digit,”3”
will blink. It means a weight decimal point is “3 (will display 0.000)”
(11)Input a weight decimal point by using [ZERO] key.
(12) Press [TARE] key, and then “1d “ message blinks.“0.005” will be shown. The third digit,”0”
will blink. It means a division is “0.005 (calibration unit, kg or lb)”
(13) Input a division by using [ZERO] key.
(14) Press [TARE] key, and then “dual “ message blinks.“1” will be shown. The third digit,”1”
will blink. It means a dual interval is disable. (0 : disable, 1 : enable)”
(15) Input a dual interval enable by using [ZERO] key.
(16) Press [TARE] key to save the calibration factor, and “C-10 ” message will be shown.
2.1.5.D splay ng Real A/D Value (C-5)


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
2.1.6. Input Funct on Key Code (C-6)

(1) Under the calibration switch ON press [POWER] key.
“CAL” message blinks three times.
(2) Press [ZERO] to display “C-6”.
(3) “E-SET” display on the weight window.
(4) “XX” message shows up on the total price window.
(5) Input “Soft Key Code” in the following table.
For first example, press ‘16’ as SOFT KEY CODE and then press ‘+’ key.
For second example, press ‘19’ as SOFT KEY CODE and then ‘Σ’ key.
(5) Press ‘C’ key to exit from “Input Soft Key Code” mode.
NOTE: User doesn’t need MATRIX KEY CODES by inputting soft key code because MATRIX
KEY CODES are fixed in hardware.
* FIXED KEYS & THEIR SOFT KEY CODES
* CHANGEABLE KEYS & SOFT KEY CODES
FUNCTION SOFT KEY CODES REMARK
“00” 11
ADD 16
TTP CALL 18
PAY 19
MR 20
MW 21
CAN 22
MODE 23
1/2 24
1/4 61 25
PRE PACK 26
KEYS MATRIX KEY CODES SOFT KEY CODES
“0” through “9” 0 through 9 0 through 9
“C” 10 10
“ON/OFF” 12 12
“ZERO” 13 13
“TARE” 14 14

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KG/LB 27
TEST 28
HOLD 29
PRINT 30
NO FUNCTION 31
EURO 60
PERSENT TARE 62
TARE SAVE 63
BOTH SAVE 64
PERSET 65
MUL ”X” 66
PLU 32~59
2.1.7.Percent Cal brat on (C-7)
“”
“”“”

“”
“”
   
“”
“”
 
“”
2.1.8.Battery Cal brat on (C-8)
“”
“”“”

“”
KEYS MATRIX KEY CODES SOFT KEY CODES
“0” through “9” 0 through 9 0 through 9
“C” 10 10
“ON/OFF” 12 12
“ZERO” 13 13
“TARE” 14 14

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
‘’‘’

And then it display ‘500’
(6) ‘’‘’
(7) You can see the calibrated voltage of battery.

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7/4/2007
3. The Schemat cs and D agram
3.1. System Block D agram
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7/4/2007
Circuit Diagram
3.1.1.Ma n
+5V
P2.1
D10 KDS160
0
Key Connector PART
+5V
TXD
A_GND
RL3 RL103
2
3
45
6
7
8 1
C8
0.1uF
A_Vcc
L9
L102S
LCD_CS
Key _Out_2
C4
0.1uF
D11 KDS160
CN1
1
2
3
Power_chk
CON_TX
PSEN
TP2
R16 10
AIN-
R2
4.7k
JP1
1 2
Key _Out_2
P0.2
U6
74HC245/ SO
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
OE
DIR
B0
B1
B2
B3
B4
B5
B6
B7
Key _IN _4
P2.2
P2.0
CN4
CN4
1
2
3
4
5
R1
10k
RXD
BUZZER
P0.1
CON_R X
C22
0.001uF / 3kv
CAL_SW
Key _IN_3
CAL PART
C23
0.001uF / 3kv
L1 L102S
LCD_DATA
U7
74HC245/ SO
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
A0
A1
A2
A3
A4
A5
A6
A7
OE
DIR
B0
B1
B2
B3
B4
B5
B6
B7
Key _Out_3
I2C_SDA
C20
0.001uF / 3kv
Rx
Power_con
TP1
PROGRAM PART
U1A
max3232idbre4
6
8
5
13
2
4
9
15
12
7
3
14
1
10
11
16
V-
RIN2
C2-
RIN1
V+
C2+
ROUT2
GND
ROUT1
DOUT2
C1-
DOUT1
C1+
DIN2
DIN1
V_CC
BUZZER
I2C_C LK
CON_RX
RL2 R L103
2
3
45
6
7
8 1
BUZZER
+5V
P3.2
ONE_MODULE1
OneModule
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
A_Vcc
A_GND
Bat_chk
P1.6
P1,7
Rx
Tx
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P2.0
P2.1
P2.2
P2.3
P1.1
AIN+
AIN-
A_GND
P1.0
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
PSEN
I2C_SDA
I2C_CLK
D_Vcc
D_GND
RTC_Power
A
ER2 MAIN CIRCUIT
B
2 4Friday , Ju ne 29, 2007
Title
Size Docum ent Num ber Rev
Date: Sheet of
P1.7
Key _IN _1
RS232 DRIVER PART
L7 L102S
RL1 R L103
2
3
45
6
7
8 1
+5V
CON_TX
Q1
KTA1504
Key _IN _2
L4 L102S
C5
0.1uF
PSEN
BUZZER PART
Key _Out_1
RTC_Power
Key _Out_5
Key _Out_4
6100 - PER - 0002
C21
0.001uF / 3kv
D_Vcc
POWER_KEY
LOADCELL PART
P3.3
Tx
L8 L102S
LL1 LL102
2
3
45
6
7
8 1
A_GND
C7
0.1uF
Rx
TP3
+5V
L5 L102S
+5V
P2.3
P1.6
Tx
L3 L102S
D_GND
P0.3
CN7
1
2
3
4
5
6
7
8
9
10
11
AIN+
Key _IN_4
P0.4
C9
0.1uF
BL_con
AIN+
C3
0.1uF
Bat_chk
D12 KDS160
Key _Out_5
Key _IN _3
C6
0.1uF
+5V
P3.4
D13 KDS160
+5V
P1.1
Key _IN_2
S1
CAL S/W
Key _IN_1
D9 KDS160
MODULE CONNECTOR PART
P1.0
L2 L102S
LCD_WR
TP4
P0.0
Key _Out_4
CAL_SW
+5V
AIN-
Key _Out_3
P3.5
Key _Out_1
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II II
II Service Manual
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Service Manual
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20 7/4/2007
7/4/20077/4/2007
7/4/2007
3.1.2.Power Part & Back_L ght
R5
10K
D1
SS14
BackLight
Back_Light
Power_chk
R13
10k
TP_BL
Charge
R3
1k
C18
100u/16
+5V
R7
2k
C2
0.01uF / 3kv
Power PART
R8
100
U5 LM7809
1 3
2
IN OU T
GND
RECHARGEABLE BATTERY
D5 1N5406
TP_BUZZER
U3 MC34063A
5
36
4
8
7
1
2
COMP
TCAPVCC
GND
DC
PK
SWC
SWE
TP_BAT
A_Vcc
C14
470pF
R10
1k
+5V
C10
0.1uF
R11
100k
D2
LED
L6 220uH
R12
20k
CN5_F EMALE1
Pb BAT
1
2
3
(+5V , B at) 󲧻󲣇󲊣󲞈
+5V
D4
SS14
Power_con
TP_IN
Power_LED
D6
SS14
TP_LED1
C17
0.1u
R14
100k
BT1
Pb 6V/5A
C15
470u/35
SW1
SW Charge
R9
100k
D8
KDS184 21
3
C13
0.1u
CN 5_MALE1
BAT
1
2
3
CN 2
Power SW
1 2
D3
SS14
6100 - PER - 0002
A
ER2 POWER
A3
3 4F riday , June 29, 2007
Title
Size Docum ent Number Rev
Date: Sheet of
U2 XC6204C502MR
1
2
3
5
VIN
VSS
CE
VOUT
Q3
2N2222
F1 FU SE
D7
1N4004
POWER_KEY
CN3
Adaptor
1
2
3
C19
0.01uF / 3kv
Bat_chk
+5V
TP_GND
BL_con
+9V
R4
0.33 1W
+
C11
100u/16
R6
100k
Q2 KTA1666
TP_BUZZER
C16
470u/35
C12
470u/35
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