CAS NC-I User manual

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TECHNICALSPECIFICATION............................................4
1. BLOCK DIAGRAM ..............................................................5
2. CONNECTOR DIAGRAM..................................................6
3. TEST MODE............................................................................7
4. CALIBRATION MODE........................................................9
5. SET MODE ............................................................................14
6. PROGRAM DOWNLOAD................................................19
7. SCHEMATIC DIAGRAM..................................................22
8. PCB BOARD DIAGRAM...................................................26
9. DEVICE OF SPECIFICATION........................................29
10. ERROR MESSAGE...........................................................50
11. PARTLIST............................................................................53
12. EXPLODE VIEW...............................................................83
CONTENTS

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TECHNICAL SPECIFICATION
Max Capacity 20 kg 30 kg 50 kg 100 kg 200 kg 500 kg
Kilogram
Division 10 g 10 g 20 g 50 g 100 g 200 g
Max Capacity 250lb(125kg) 500lb(250kg) 1000lb(400kg)
U.S.A
version Division 0.1lb(0.05kg) 0.2lb(0.1kg) 0.5lb(0.2kg)
Max Capacity 250lb 500lb 1000lb
Pound
Division 0.1lb 0.2lb 0.5lb
A/D Speed 20 times/second
Tare Subtraction Full Capacity
Display below zero “-“ minus sign
Excessive Weight Maximum + 9d (display “OUEr”)
Weight Display Type LCD (5 digit + Sign, 1 Inch Height)
Character Display ZERO, TARE, BAT, POWER, CHARGE
Keys ON/OFF, ZERO, TARE, kg<->lb(HOLD)
Battery 7.2V , 2A (Li - ion)
Use the Backlight Not use the Backlight
0.45 W 0.17 W
Power and Battery
consumption
Approximate 22 Hours Approximate 58 Hours
Operation Temperature -10℃~ 40℃
Rechargeable Current 150㎃~ 680㎃
Rechargeable Adapter 110/220VAC 12V, 1.5AH
Rechargeable Time 4 ~ 5 Hours
WEIGHT 5.5kg

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1. BLOCK DIAGRAM
MCU
(ADUC 845)
AMP/FILTER
(OPA2177)
LOADCELL
BATTERY
(7.2V,2000mA)
POWER
MANAGEMENT
32.768 khz
DISPLAY
(LCD)
DISPLAY-
DRIVER
(UPD7225G)
FIG 1. BLOCK DIAGRAM.

CONNECTOR DIAGRAM
2. CONNECTOR DIAGRAM
J1(CAL)
CN3(POWER&CHARGE)
CN7(DOWNLOAD) CN5(LOADCELL)
CN4
ER)
CN6
(LCD DATA)
CN1
(LCD DATA)
6100-PNC-0909-0
MAIN PCB
(REMOCON&POW
CN2
(REMOCON&POWER)
6110-PNC-0909-0
DISPLAY PCB
6171-PC5-6170-0
CHARGER PCB
CN2
(BATTERY)
CN3
(POWER&CHARGE)
CN1
(ADAPTOR)
SW5
(DOWNLOAD S/W)
6151-PNC-0420-A
(CAL PCB)
BATTERY
CAL ADAPTOR
CN1
(BATTERY)
FIG 2. CONNECTOR DIAGRAM.
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3. TEST MODE
1. How to enter TEST mode
Pressing the ZERO key for 2 seconds in the normal mode, enter the test mode
with display the message TEST 1 Press the HOLD key or kg ◀▶ lb key to
execute the test mode. (‘TEST 2~5’is same sequence.)
I f press the ON/OFF key in the test mode, test mode is ended and then enter the
normal mode.
(Ref. You can’t enter the test mode while in the state of Hold or Tare.)
Test menu ( tESt 1~5)
TEST1 :DisplayTest
TEST 2 : Load Cell andA/D Conversion Test
TEST 3 : The IC(CPU) Temperature Test
TEST4 :BatteryTest
TEST5 :KeyTest
Available keys
KEY DESCRIPTION
ON/OFF KEY Exit Test mode and then enter the Normal mode key
ZERO KEY Use the backlight(only TEST 1) key or key
HOLD KEY or
kg ◀▶ lb KEY Move the next menu and then execute TEST Mode

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TEST 1
FUNCTION : DISPLAY TEST
KEY LCD SCREEN DESCRIPTION
ZERO KEY : Backlight
HOLD KEY or
kg ◀▶ lb KEY
:executetest1
Display TEST 1 state
Display all digits on the screen
TEST 2
FUNCTION : Load Cell and A/D Conversion TEST
KEY LCD SCREEN DESCRIPTION
HOLD KEY or
kg ◀▶ lb KEY
:executetest2 24995
Display TEST 2 state
Display the digital value
Corresponding to current weight
TEST 3
FUNCTION : The IC (CPU) Temperature TEST
KEY LCD SCREEN DESCRIPTION
HOLD KEY or
kg ◀▶ lb KEY
:executetest3 24℃
Display TEST 3 state
Display the temperature of IC
[CPU]
TEST 4
FUNCTION : Battery TEST
KEY LCD SCREEN DESCRIPTION
HOLD KEY or
kg ◀▶ lb KEY
:executetest4
8.02
Display TEST 4 state
Display the current value of
battery

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TEST 5
FUNCTION : Key Test
KEY LCD SCREEN DESCRIPTION
HOLD KEY or
kg ◀▶ lb KEY
:executetest5
PUSH
ZERO
Display TEST 5 state
Pressing the key to test shows
(Power, Zero, Tare, HoLd)
4. CALIBRATION MODE
How to enter calibration mode
1. Remove the sealing bolt on the rear panel and put the switch to CALON.
2. Turn on the power.
3. You can see ‘CZ ST’message.
4. Put the switch to CAL OFF and perform the sealing.
Calibration menu
CZ ST : Calibration & Set mode select
UNIT : Weight Unit Set
ZERO : Zero Calibration
MIN : Minimum Division Set
MAX : Maximum Capacity Set
BAL : Setting the Weight in Span Calibration
CAL0 ~ 3 : Span Calibration
CZ ST
Function : Calibration mode & Set mode select
KEY LCD SCREEN DESCRIPTION
ZERO :
Operate the Calibration
mode
TARE :
Operate the Set mode
CZ ST

1
0
UNIT
Function : Weight Unit Set (kg, lb, lb<->kg)
KEY LCD SCREEN DESCRIPTION
ZERO :
Increase the value
ON/OFF :
Save and go to next menu
Unit 0
Unit 1
Unit 2
Unit 3
0 : kg
1 : lb
2 : lb <-> kg (basic unit -> lb)
3 : lb <->kg(basic unit -> lb)
(only 1250lb, 1000lb<->400kg)
ZERO
Function : Zero Calibration
KEY LCD SCREEN DESCRIPTION
ZERO :
Start Zero Calibration
ON/OFF long :
Go to initial mode
HOLD :
Go to next menu
ZERO
out
55555
- qo -
Ready Zero Calibration
Go to initial mode
(“CZ ST”)
Auto detect zero A/D value(5EA)
Zero Calibration is done

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MIN
Function : Minimum Division Set
KEY LCD SCREEN DESCRIPTION
ZERO : Set value change
(1.02.05.01.0)
TARE : Set value change
ON/OFF :
Go to next menu
HOLD : Operate the Span
Calibration
MIN
1.0
0.01
LoAd
1 lb
0.01 lb
Operate the Span Calibration.
MAX
Function : Maximum Capacity Set
KEY LCD SCREEN DESCRIPTION
ZERO :
Increase the value(1~9)
TARE :
Move the place(value*10)
ON/OFF :
Go to ‘MIN’ menu
HOLD :
Operate the Span
Calibration
MAX
500
LoAd
500lb
Operate the Span Calibration.

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BAL
Function : Setting the Weight in Span Calibration
KEY LCD SCREEN DESCRIPTION
bAL
ZERO :
Increase the value(1~9)
TARE :
Move the place(value*10)
ON/OFF :
Go to ‘MIN’ menu
HOLD :
Go to below step
500 kg
500
500 kg
HOLD:
Start the Span Calibration
ANY KEY:
Not operate
LoAd
Load the weight which was set in ‘BAL’,
and the press HOLD key.
Note. The weight for span calibration should be within 10~100% of the
maximum capacity in ‘BAL’.
If you operate the Span calibration before checking the value of ‘MIN’/
‘MAX’/‘BAL’, the weight will be not exact in normal mode.
(Do check the vale of ‘MIN’/’MAX’/’BAL’with *(STAR) key)

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CAL 0 ~ 1
Function : Span Calibration
KEY LCD SCREEN DESCRIPTION
HOLD Long :
Calibration data is saved
and go to initial mode.
SPAN
55555
SAVE
donE
good
CZ ST
Span Calibration is starting.
Auto detect Span A/D value(5EA)
CAL data is saving
Press ‘HOLD’ key long.
Calibration is done.

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5. SET MODE
1. How to enter & exit SET MODE
How to enter SET Mode
Turn on the power while pressing TARE key , after displaying the message
and then enter the SET Mode.
Return to the normal mode if you press the HOLD key or kg ◀▶ lb key long.
SET Menu (F0 - F6)
Menu DESCRIPTION Menu DESCRIPTION
F 0 Setting the value of Digital-Filter F 4 Weight Backup
F 1 Setting the stable time of weight F 5 Setting the hold type
F 2 Setting the stable range of weight F 6 Setting the time of Auto Display
Off
F 3 Setting the Back Light
Available keys
KEY DESCRIPTION
ON/OFF KEY Menu Cycle ( F0 ~F6→F0)
ZERO KEY Increase the setting value
TARE KEY Decrease the setting value
HOLD KEY or kg ◀▶ lb KEY Store the current setting value (Not exit)
HOLD KEY or kg ◀▶ lb KEY After storing all setting value and then exit SET Mode
(Ref. Function of useful key is explaned at above available keys)

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F 0
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING VALUE DESCRIPTION
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY F0-04
00
-
09
00 : Not use Digital-Filter
(Speed of display
conversion is fast)
~
09 : Speed of display
conversion is slow
F 1
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING VALUE DESCRIPTION
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY
F1-04
00
-
09
00 : Setting the time
within 0.5 second
~
09 : Setting the time within
1.4second
F 2
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING VALUE DESCRIPTION
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY
F2-04
00
-
09
00 : Setting the range within
0.5 division
~
09 : Setting the range within
4.0 division
F 3
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING
VALUE DESCRIPTION
00 Always Off
01 Always ON
02 Back Light ON whenever weight is
loaded
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY
F3-02
03 Back Light ON Whenever the weight is
stable

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F 4
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING
VALUE DESCRIPTION
00 Not use
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY
F4-00
01 Use (Zero, Tare, Status)
F 5
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING
VALUE DESCRIPTION
00 Average
Hold
Calculate the average of
moving weight
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY F5-00
01 Peak
Hold
Calculate the peak of
moving weight

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Description of HOLD Function
1. When the F5 is set to 00
Case 1 ( When the hold key is pressed in unloaded state) :Auto-Average
Hold Function
If you press the Hold key in unloaded state, after displaying the
AH on and the Hold function Is started.
Just When the weight is changed(above the 1divison) , being
displayed HOLD and the changed weight is hold
If you want to release the Hold function, have to press Hold
key in unloaded state certainly
When the Hold function is released, being displayed the message
AHoff
Case 2 (When the hold key is pressed in loaded state) : Manual Hold Function
When you want to hold the current weight, just press Hold key.
Afterdisplayingthehd on and the Hold function Is started.
InHoldstate
- if the weight is not changed, the current weight is not changed
- if the weight is changed(above the 10% of Max capa), the
current weight is changed and the Hold function is released
- Whenever unloaded states, the Hold function is released automatically
-Also you want to release the Hold function, have to press Hold key
in unloaded state certainly
- If Hold function is released, you can see the massage hdoff.
2. When the F5 is set to 01
The maximum value of weight is showed when the Hold key is pressed
If the Hold key is pressed once, the peak Hold function is started
If Hold function is released, you can see the massage
If the Hold key is pressed again, the Hold function is released
If Hold function is released, you can see the massage Phoff.
(Ref> If the weight is ‘0’lb or ‘0’kg, this function is not operated.)

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F 6
FUNCTION : Setting the value of Digital-Filter
KEY LCD SCREEN SETTING
VALUE DESCRIPTION
00 Not use
01 Display all off in 3 minutes
02 Display all off in 6 minutes
ON/OFF KEY,
TARE KEY
HOLD KEY or
kg ◀▶ lb KEY F6-00
03 Display all off in 9 minutes
Ref. 1. Operates the function of F6 which anything is set when the weight is in
zero state.
2. The Display is ON when the weight is not in zero state or when the any key
In the remote controller and front cover is pressed

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6. PROGRAM DOWNLOAD(IC Writing)
1. Turn off the power.
2. Separate the front cover.
3. You can see SW5 on the main PCB(FIG 2.)
4. Turn on SW5.
5. It’s ready for ‘Program Down loading’.
6. Do operate download software .It’s called‘WSD’]’
7.
You can see this dialog box. Click ‘Configuration’button.
8.

2
0
9.
Click ‘Reset’button. Then you can see message like this dialog box.
10.
Click ‘Download’button.

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11.
Select hex file
12.
Download is done.
13. If download is done, you must turn off SW5.(FIG 2)