EWA Service Manual
EWA Service Manual
Weighing
            EWA
       Service Manual
REV1
EWA	
                                 Weighing	
Power Source
100~240V   50/60hz   AC INTPUT
10V/0.6A DC OUTPUT 6W
6V/4AH Lead-acid rechargeable battery included
Power Consumption
Approx. 12mA
Approx. 36mA with backlight
Approx. 48mA with backlight and RS232 interface
OPTION
RS232 Interface
Display
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Key description
OFF key:
Press and hold the OFF key and the display will show “oFF" for 2 seconds
then the scale will turn off automatically.
ON/ZERO/ ▶ key:
Press the ON key to turn on the scale. The scale will start self-adjusting
sequence then will stabilize in 0.
ZERO : To reset the weight to 0, but the displayed weight value has to
be less than ± 2% of maximum capacity.
▶ : To move one space to the right or upward in setup mode.
To the right
000000 → 000000 → 000000 → 000000 → 000000 → 000000
Upward
LF 1 → LF 2 → LF 3 → …… → LF 8
UF-1 → UF-2 → UF-3→ ……→ UF-9
ECF-1 → ECF-2 → ECF-3
UNITS / ESC key:
UNITS: To select desired weighing unit.
         When change into PCS,PCS marker light,Optional number by ▲
         switch: 10、20、50、100、200,put the corresponding number of objects
         on the scale,after the stable press ↵ key, complete the number of
         samples.
ESC : To escape (exit) setting in setup mode.
TARE / ◀ key:
TARE : To subtract the container weight. Maximum tare = full capacity
◀ : To move one space to the left or downward in setup mode.
To the left
000000 → 000000 → 000000 → 000000 → 000000 → 000000
Downward
LF 8 → LF 7 → LF 6 → …… → LF 1
UF-9 → UF-8 → UF-7→ ……→ UF-1
ECF-3 → ECF-2 → ECF- 1
MR/MC / ▲ key:
MR: To display total accumulation count and total accumulated weight
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                                   Weighing	
MC : Memory Clear key to clear all accumulated weight data (When the
         weighing unit is changed (ex: from kg to lb), all accumulated data
         will be cleared automatically) (display cursor M+ lights off)
▲ : To increase values upward in setup mode.
        例如 : 232    0 → 232     1 → 232     2 → 232     3 → …… → 232          6
M+/PRINT / ↵ key:
Accumulation key: The M+ key can be used to accumulate weight, when display
                   above 999999,can not to the next accumulate.
PRINT : Manually transmitting data through RS232 to computer or printer
            at normal weighing mode (RS232 setup must be set at keyboard
            transmission 232 3 or 232 6)
↵ : Works as enter key in setup mode
※ Error messages:
   Err     N   Unstable internal count
   -OL-        Overload, when the weight is heavier than the full capacity
               + 9d of the scale
Functions Setup
Approval Calibrations and Functions Setup (Lock section) L F 1 ~ 8
Standard Functions Setup        UF – 1 ~ 9
Standard Calibrations       ECF – 1 ~ 3
  Standard Calibrations:
  Press the TARE/ ◀ key and the M+/PRINT /↵ key in weighing mode to
   start Standard Calibrations
  ECF-1     Weight Calibration (Zero and Span)
  ECF-2     Zero Calibration
  ECF-3     Span Calibration
 ※ When the scale is programmed for Approval (LF 6), standard
       calibration will be locked
 ECF-1               Press the ↵ key to start or press the ESC key to exit
                    menu and back to weighing mode
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                              Weighing	
  ↑↓
  ◀         ▶
ECF-2            Press the ↵ key to start or press the ESC key to exit
                menu and back to weighing mode
  ↑↓
  ◀         ▶
ECF-3            Press the ↵ key to start or press the ESC key to exit
                menu and back to weighing mode
↵
CALZ                  Press the ↵ key to calibrate zero point (Press the
                     ESC key to terminate calibration back to menu ECF-2)
        ↓
↵
         0.00kg       Zero Calibration procedure completed and the scale
                     will return back to weighing mode automatically
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O        000         Use ◀,▶,▲ and then ↵ key to set I/O SET value
         ↓           (Press the ESC key to exit the setup and back to menu
↵                   UF-2)
UF-2                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and back to weighing
                    mode
UF-3                 Press the ↵ key to start or press the ESC key to exit
                    menu and back to weighing mode
         ↓
↵
AoFF10               Use ◀﹑▶﹑▲ and then ↵ key to enter Auto Power-off
                    time
         ↓           (Press the ESC key to exit the setup and back to menu
↵                   UF-3)
UF-3                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and back to weighing
                    mode
UF-4 Backlight :
UF-4                 Press the ↵ key to start or press the ESC key to exit
                    menu and back to weighing mode
         ↓
↵
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                                   Weighing	
UF-5 Hold :
HOLD 0     Hold function off
HOLD 1     Animal (motion) Hold function
PCt XXX    To set the range from 001 ~ 100 of the animal hold
               (for HOLD 1 only)
timEXX     To set 1﹑﹑2﹑﹑4﹑﹑8﹑﹑16﹑﹑32﹑﹑64 times within the hold range
               (for HOLD 1 only)
※ This function is locked when LF 6 is set as “Approval Version"
※ Factory default: HOLD 0
UF-5                  Press the ↵ key to start or press the ESC key to exit
                     menu and back to weighing mode
       ↓
↵
HOLD           0      Use ▲ and then ↵ key to select Hold modes
                     (Press the ESC key to exit the setup and back to menu
                     UF-5)
       ↓
↵
UF-5                  Use ◀﹑▶ and then ↵ key to continue with other setups
                     or press the ESC key to exit menu and back to weighing
                     mode
HOLD 1 mode :
UF-5                  Press the ↵ key to start or press the ESC key to exit
                     menu and back to weighing mode
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                              Weighing	
       ↓
↵
HOLD        1      Use ▲ and then ↵ key to select Hold 1 mode
                  (Press the ESC key to exit the setup and back to menu
                  UF-5)
       ↓
↵
PCt        010     Use ◀﹑▶﹑▲ and then ↵ key to enter the hold range
                  (Press the ESC key to exit the setup and back to menu
                  UF-5)
       ↓
↵
timE         8     Use ▲ and then ↵ key to select times
                  (Press the ESC key to exit the setup and back to menu
                  UF-5)
       ↓
↵
UF-5               Use ◀﹑▶ and then ↵ key to continue with other setups
                  or press the ESC key to exit menu and back to weighing
                  mode
UF-6 RS232 :
232    0   RS232 disable
232    1   Stable output – Format 1
232    2   Stream output – Format 1
232    3   Manual output – Format 1
232    4   Stable output – Format 2
232    5   Stream output – Format 2
232    6   Manual output – Format 2
RS232 Baud rate
b 1200      Baud rate 1200
b 2400      Baud rate 2400
b 4800      Baud rate 4800
b 9600      Baud rate 9600
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Communication Protocol
       UART signal of EIA-RS232 C
       Format:
       1. Serial output: 1200 / 2400 / 4800 / 9600 / 19200 / 38400 BPS
       2. Data bits : 8 BITS
       3. Parity bits : None
       4. Stop bits : 1 BIT
Format 1 (232            1 ~ 3 ) :
        HEAD1 ( 2 BYTES )                           HEAD2 ( 2 BYTES )
  OL -         Over Load
  ST -         Stable                        NT -         Net Weight
  US -         Unstable                      GS -         Gross Weight
Output examples :
1. Example +0.876 kg Stable net weight :
 S T , N T , + 0 0 0 . 8 7 6 k g 0D 0A
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Format 2 (232                               4 ~ 6) :
Fixed 12 BYTES ASCII                                                (kg g t lb)
  1         2           3           4           5               6       7           8               1           2           1        2
                                DATA                                                        UNIT                        CR LF
Fixed 15 BYTES ASCII                                                (tl.T lboz)
  1         2       3           4           5               6       7           8           9           1           2           3        4    1    2
                                        DATA                                                                    UNIT                          CR LF
Fixed 13 BYTES ASCII                                                (pcs)
    1           2           3           4               5           6           7           8               1           2            3        1    2
                                        DATA                                                                        UNIT                     CR LF
Output examples :
1. Example +0.876 kg stable net weight :
  +         0       0           0               .           8           7       6           k               g           0D          0A
UF-6                                                    Press the ↵ key to start or press the ESC key to exit
                                                    menu and back to weighing mode
            ↓
↵
232                         0                           Use ▲ and then ↵ key to enter RS232 output format
                                                    (Press the ESC key to exit the setup and back to menu
                                                    UF-6)
            ↓
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↵
b       9600         Use ▲ and then ↵ key to select baud rate
                    (Press the ESC key to exit the setup and back to menu
                    UF-6)
       ↓
↵
UF-6                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and back to weighing
                    mode
UF-7                 Press the ↵ key to start or press the ESC key to exit
                    menu and back to weighing mode
       ↓
↵
SPEEd 1              Use ▲ and then ↵ key to select ADC speed
                    (Press the ESC key to exit the setup and back to menu
                    UF-7)
       ↓
↵
UF-7                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and back to weighing
                    mode
ZP     0    Off
ZP     1    One division not to display at zero
ZP     2    Two divisions not to display at zero
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UF-8                Press the ↵ key to start or press the ESC key to exit
                   menu and back to weighing mode
       ↓
↵
ZP           0      Use ▲ and then ↵ key to select how many divisions
                   not to display at zero
                   (Press the ESC key to exit the setup and back to menu
                   UF-8)
       ↓
↵
UF-8                Use ◀﹑▶ and then ↵ key to continue with other setups
                   or press the ESC key to exit menu and back to weighing
                   mode
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UF-9                 Press the ↵ key to start or press the ESC key to exit
                    menu and back to weighing mode
        ↓
↵
 -03-                The display will show the last value for 1 second
   ↓
9.79423              Use ◀﹑▶ keys to see previous entered values. The
                     display will stay at 00 if no value has been entered
  ↑↓ ▶
  ◀
 -02-                The display will show the last value for 1 second
   ↓
9.79585              Use ◀﹑▶ keys to see previous entered values. The
                    display will stay at 00 if no value has been entered
        ↓            Press the ↵ key to start
↵                   (Press the ESC key to exit the setup and back to menu
                    UF-9)
9.79585              Use ◀﹑▶﹑▲ and then ↵ key to enter the G value
                    (Press the ESC key to exit the setup and back to menu
                    UF-9)
        ↓
↵
9.79423              Press the ↵ key to confirm the G value
   ↓
↵
UF-9                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and back to weighing
                    mode
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LF 1 Weight Calibration :
※ Calibration can be done with any weight, but the weight should not
       be less than 1/100 of the max. capacity and not to exceed the max.
       capacity
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LF 2 Spec Calibration:
First step
 2 6 2 1 4 4                     Display Internal Value
Second step
 1 0 0 0 0 1
 A     B    C   D        E   F
A : Metric System                 0 : None   1 : kg       2 : T       3 : g
B : American System               0 : None   1 : lb       2 : lb oz
C : Other Units                   0 : None   1 : TW Kg    2 : HK Kg   3 : VISS
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D : PCS              0 : Off
                     1 : On
E : Duo range         0 : Off
                     1 : MULTI INTERVAL
                     2 : MULTIRANGE
F : Calibration Unit      1 : Metric units as calibration unit
                          2 : American units as calibration unit
※ lb oz unit cannot be selected as calibration unit
※ The scale will not allow to continue to the next setup step if an
       error has occurred during the programming
Third step
 000000kg            Use ◀﹑▶﹑▲ and then ↵ key to enter the max. capacity
                          Showing the calibration unit
Forth step
 d    0.0 Use ◀﹑▶ keys to move the position of the decimal point
 d   0.00
 d 0.000
 d 0.0000
  0.00000
Fifth step
 div         01        Press the ▲ key to select division
 div         02
 div         05
 div         10
 div         20
 div         50
※ After entering LF 2, the scale will display the last saved setup.
       All steps have to be completed to save the changes, otherwise the
       scale will keep the last setup
※ Proceed with Weight Calibration after LF2 Spec Calibration
↵
262144             Press the ↵ key to continue with the setup
                  (Press the ESC key to exit the setup and back to menu
                  LF 2)
       ↓
↵
100001             Use ◀﹑▶﹑▲ and then ↵ key to select weighing units
   ↓               (Press the ESC key to exit the setup and back to menu
↵                 LF 2)
000000kg           Use ◀﹑▶﹑▲ and then ↵ key to enter the max. capacity
   ↓               (Press the ESC key to exit the setup and back to menu
↵                 LF 2)
d      0.0kg       Use ◀﹑▶ and then ↵ key to move the decimal point
                  (Press the ESC key to exit the setup and back to menu
                  LF 2)
       ↓
↵
div        01      Use ▲ and then ↵ key to select division
                  (Press the ESC key to exit the setup and back to menu
                  LF 2)
       ↓
↵
LF 2               Use ◀﹑▶ and then ↵ key to continue with other setups
                  or press the ESC key to exit menu and the scale will
                  restart automatically
LF 3 Linearity Calibration :
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ZP     0    Off
ZP     1    One division not to display at zero
ZP     2    Two divisions not to display at zero
ZP     3    Three divisions not to display at zero
ZP     4    Four divisions not to display at zero
ZP     5    Five divisions not to display at zero
※ This function is locked when UF-5 is set as “HOLD 1"
※ Factory default: ZP       0
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        ↓
↵
LF 5                 Use ◀﹑▶ and then ↵ key to continue with other setups
                    or press the ESC key to exit menu and the scale will
                    restart automatically
LF 6 Approval Conformity:
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LF 8 Initial Zero:
SEtZ Y   Reset zero point every time the scale has been switched on
SEtZ n     Zero point reset off
※ Factory Default: SEtZ Y
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