UWE 1705N User manual

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1705N / 1705GN
WEIGHING INDICATOR
OPERATION MANUAL
MAY 2003
Specifications subject to change without prior notice
PLEASE READ THIS MANUAL VERY CAREFULLY
BEFORE ATTEMPT TO OPERATE THE INDICATOR

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1. SPECIFICATION:
1. Display : 6 Digits Vacuum Fluorescent Display (1705N Digit Height:
0.5 inch, 1705GN & 1708GN Digit Height: 0.8 inch)
2. Display Resolution : up to 30000 counts
3. Division Graduation : 1 , 2 , 5 , 10 , 20 , 50
4. Minimum Input per
Display Resolution : 0.1uV or above
5. Zero Adjustment : -2mV ~ 20mV
6. Non-Linearity : +/- 0.0033% F.S.
7. A/D Type : ¡µ£U
8. A/D Resolution : 24 bit
9. A/D Conversion Rate : 50 times/second
10. Maximum Input Voltage : 20mV
11. Load Cell Excitation : DC5V(can connect up to 8 x 350£[load cell)
12. Zero Drift : 0.3uV /C (typ.)
13. Span Drift : +/- 8PPM /C (typ.)
14. Power Source : AC110V or AC220V +/-10%¡A50/60 Hz¡A
Power Consumption
about 15W
15. Operating Temperature
16. Range ¡G0~40C
17. Operating Humidity : < 90%(Non-condensed)
18. Net Weight : 2.8kg
19. Dimension : 235(D) x 202(W) x 88(H) mm

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2. OPERATION PANEL LAYOUT AND DESCRIPTIONS
2.1 FRONT PANEL ILLUSTRATION
S=
SM
+
SIGNAL DISCRIPTION(¡¿)
POWER ¡Gindicator is charging and operating
TARE ENTERED ¡Gthis indicator means the tare function is in effect
ZERO ¡Gscale is now at a zero weight status
GROSS ¡Gthe weight value being displayed is gross weight
NET ¡Gthe weight value being displayed is net weight
MOTION ¡Gthis indicator means the weight detected is not stable
KEY DISCRIPTION
¡GPress this key to -a: reset display value to zero during normal operation
when the platform is empty (refer to SETTING to setup zero range), b: “+”
to be used as increment key during function setup¡C
¡GPress this key to -a: to tare off the weight of a container placed on
the platform. The TARE indicator will appear when tare function is in
operating, b: “-“ to be used as decrement key during function setup.
¡GPress this key to: (a) switch weight displayed between gross and net
weight; (b) to be used for moving the position of cursor to left during
function setup
¡GPress this key to: (a) transmit data to printer via RS-232C or parallel
interface; (b)to be used for moving the position of cursor to the right
during function setup.
ZERO
TARE
GROSS
NET
PRINT
à
ß

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¡GPress this key to enter parameter setting / calibration (when Calibration
Switch is at ON position)
¡GParameter Setup Key (to be used with SET)¡C
¡GCalibration Key (to be used with SET)¡C
¡GNormal Operating/Standby key
2.2 BACK PANEL LAYOUT AND DESCRIPTION
1. AC Power Socket
2. Printer Interface (D-SUB 25PIN)
3. OP-5L External Display Interface (4PIN)
4. Load Cell Connector (8PIN)
5. Voltage Switch (110V / 220V)
6. RS-232 Interface (D-SUB 9PIN)
7. CAL. SW (when switch to left, function setup and calibration is disabled)
SET
S=
SM
STANDBY
OPERATE

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3. INSTALLATION
3.1 LOAD CELL SIGNAL CABLE CONNECTION
3.2 RS-232 INTERFACE (D-SUB 9PIN)
Pin Assignment¡G
Pin No. Signal
1DCD
2RXD
3TXD
4DTR
5GND
6DSR
7RTS
8CTS
9RI
1
2
3
4
5
6
7
8
jEXC+
kSEN+
lSEN-
mEXC-
nSIG+
oSIG-
pS.G.
qNC
EXC+
EXC-
SIG+ SIG-
1705N shorted internally
PC 1705N
2
2
3
3
5 5
Simple setup, only
need to connect
PIN 2¡A3¡A5

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3.3 PRINTER INTERFACE (D-SUB 25PIN)
Pin Assignment¡G Centronics parallel standard
Pin No. Signal
1STROBE
2DATA1
3DATA2
4DATA3
5DATA4
6DATA5
7DATA6
8DATA7
9DATA8
11 BUSY
18~25 GND
3.4 OP5 External Display Interface (4PIN)
Pin Assignment¡G
Pin No. Signal
1+5V
2DATA
3CLK
4GND

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Ad kEy tSt dISPLA br SEt
PArity
SEndUnitdAtA tESt 0.00
Ad xxxxxx
[SET]
kEy tSt
[ZERO]
[SET]
kEy - kEy x
press any key
4. SETTING
4.1 FUNCTION SETTING
When plug in the power, display will show “1705n.xx”. If Calibration Switch in the back
of the indicator is at ON position, then POWER signal and TARE signal will light up. Press
SET and display will show “SEt”, press TARE to enter setup menu. Utilize ZERO or TARE to
select the function that intend to set, such as Ad, kEY tSt, etc. Press SET to enter or
press STANDBY/OPERATE key to exit.
NOTE:
-When password is not required, display will show “1705n.xx” when power on the indicator.
-When password is required, please enter the correct password when display shows “P000000”
to enter function setup.
(FLOW CHART)
4.1.1
Internal resolution: this function will show the internal A/D resolution
4.1.2
Key testing: press any key and a corresponding key number will appear
1¡GZERO à1
2¡GTARE à2
3¡GGROSS/NET à3
4¡GPRINT à4
5¡GSET à5
6¡GS= à6
7¡GSM à7
P_u

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dISPLAy 8.8.8.8.8.8.8.
[SET]
br SEt
br xxxxx
[SET] [ZERO] or [TARE]
br xxxxx
SEnd
[SET]
xxxxxx
[ZERO] or [TARE]
¡¾ ¡¾ ¡¾ ¡¾ ¡¾ ¡¾ ¡¾
PArity
E.7.1
[SET]
]
[ZERO] or [TARE]
n.8.1 O.7.1
4.1.3
Display segment check:¡]all segment of VFD light up¡^
4.1.4
RS-232 baud rate setup:
(300bps, 600bps, 1200bps, 2400bps, 4800bps, 9600bps, 19200bps)
Factory Default ¡G 9600bps
4.1.5
Transmission Protocol:
E.7.1: Parity = Even, Data Bit = 7, Stop Bit = 1
n.8.1: Parity = None, Data Bit = 8, Stop Bit = 1
O.7.1: Parity = Odd, Data Bit = 7, Stop Bit = 1
Factory Default ¡G E.7.1
4.1.6
RS-232 Transmission Mode:
StrEAm ¡Gcontinue transmission (Factory Default)
Auto ¡Gsend once after weight is stabled (scale has to return to zero before
sending the next weighing result)
k_Prn ¡Gmanual transmission when press PRINT
CommAnd ¡Gcommand mode, data send when computer gives commend of¡©READ¡ª¡©CR¡ª
¡©LF¡ª
StrEAn
READCR LF
52H 45H 41H 44H 0DH 0AH

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¡A ¡A …… ¡A CR
LF
¡A ¡A …… CR
LF
Unit kg
[SET]
g
[ZERO] or [TARE]
dAtA FormAt1 FormAt2
[SET] [ZERO] or [TARE]
tESt kEy Prn
[SET]
[PRINT]
4.1.7
Weight Units:
kg ¡Gkilogram
g¡Ggram
t¡Gmetric ton
lb ¡Gpound
4.1.8
RS-232 Transmission Format:
FORMAT 1
HEADER 1 HEADER 2 WEIGHING RESULT (INCLUDE +, - AND UNIT
DECIMAL POINT, TOTAL = 8 DIGITS
FORMAT 2
HEADER 1 HEADER 2 WEIGHING RESULT (INCLUDE +, - AND UNIT
DECIMAL POINT, TOTAL = 8 DIGITS
CONTENT OF HEADER 1 & HEADER 2
OL: OVERLOAD
ST: DISPLAY IS STABLE
HEADER 1
US: DISPLAY IS UNSTABLE
NT: NET WEIGHT
HEADER 2 GS: GROSS WEIGHT
UNIT kg, Lb, g, t
4.1.9
Transmission Test:
Testing data transmission status of RS-232 & Printer by pressing PRINT

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o000000
[SET]
0.00 no.
[SET]
[SET]
0.00 0.00 x
[ZERO] or [TARE]
4.1.10
Enter Password Setup Procedures:
o000000 enter old password (if password were never set before, press SET)
n000000 enter new password (use -, +,¡ö,¡÷ to shift position and increase
or decrease value)
-000000 reconfirm the new password
4.1.11
Auto Zero Tracking Range:
no. : no zero range tracking
0.00 : zero range can be set under 0,1,2,3,5,8,10 divisions. Weight change within
the number of division set will remain zero unless it is over the zero range,
then the actual weight result will be displayed.
4.2 SETUP CAPACITIES AND DIVISIONS
Utilize ZERO, TARE, GROSS/NET and PRINT key with symbol under represents + (increase),
-(decrease), ¡ö(shift cursor to left) and ¡÷ (shift cursor to right) respectively.
When display shows “SEt”, press S= and display will show “PAr.” Follow by capacity and
division setup main menu. When complete setup of each selection, press SET to enter for
the next selection.
¡iSET¡j
C030000 Ct. dP.
P_u
o.tr. no.d.
SEt.

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¡¿ cAL.-0 ¡¿ 000000
Maximum Capacity: as long as division/full capacity  1/30000, then the full
capacity can be set freely.
Division: it is repeat in the cycle of 1, 2 5, 10, 20, 50. When the maximum capacity
is set, the program can automatically determine the adequate division with as
if the maximum display resolution is 1/30000.
Decimal Place (0, 0.0, 0.00, 0.000 repeat in cycle)
Zero Tracking Range
3.0-2 ¡G3.0 div. /2 sec.
3.0-1 ¡G3.0 div. /1 sec.
2.0-2 ¡G2.0 div. /2 sec.
2.0-1 ¡G2.0 div. /1 sec.
1.5-2 ¡G1.5 div. /2 sec.
1.5-1 ¡G1.5 div. /1 sec.
1.0-2 ¡G1.0 div. /2 sec.
1.0-1 ¡G1.0 div. /1 sec.
0.5-2 ¡G0.5 div. /2 sec.
0.5-1 ¡G0.5 div. /1 sec.
no. ¡Gzero tracking disable
Motion Detection Division Range
3d ¡GChange within 3 divisions is considered as stable (MOTION Signal off)
1d ¡GChange within 1 division is considered as stable (MOTION Signal off)
4.3 CALIBRATION
Press SM when display shows “SEt”, indicator will show “CAL” for a short while before
entering the calibration menu. When all sub-items are set, press SET to enter for the next
selection.
¡iZERO¡j¡iSET¡j¡iSET¡j
dP.
Ct.
C03000
o.tr.
no.d.

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Procedures Display Shows
a. Enter selection which shows “¡¿”
b. Press ZERO and indicator will show “cAL._0”. It
means scale is now calibrating zero point. Make
sure the platform is empty with everyone removed.
c. Press SET and if display shows “¡¿. . . . . .”, then
it means zero point is calibrated.
d. display will then show “00000”, utilize ZERO,
TARE, GROSS/NET &PRINT to enter the desired
calibrate weight (if the calibrate point is close
to the full capacity, then scale will weight more
accurate.
e. Load the mass on the platform and press SET
when it is stabled. If it shows a series of dots,
which means the calibration is success. If it
display shows an error code, please refer to the
trouble shooting in the last section of this manual
for further explanation of the code. When problem
solve, please repeat the calibration procedures
again.
¡¿
cAL-0
00000
. . . . . .
¡¿ .......

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5. TROUBLE SHOOTING
ZERO CALIBRATION
When the error messages appear on the display, the calibration is invalid. Follow theses
guide step by step to solve the problems.
1. AAAAAAAa. Poor connection
—To check the connector wirings
b. Wrong connection
—To check the Load Cell Connector to see if the polarity of
signal is reversed.
c. The input offset voltage signal is too low (over –1.5mV)
—To disconnect the power and insert a resistor (100–500K ohm)
* Between EXC + and SIG +, a 200K ohm resistor is normally
used
d. Load Cells is damaged.
—To replace with new Load Cells
2. U UUUUUUa. Poor or wrong connection
—To check the connector wirings
b. The input offset voltage signal is too high. (+2mV)
—The Load Cell capacity is too small or it is malfunction
Change new Load Cells with bigger capacities
c. Load Cells is damaged
-To replace with new Load Cells
d. Thunderstorm damage
—To replace a new A/D converter
* If there had been inserted a resistor already, use another resistor with greater
resistance.
SPAN CALIBRATION
1. LLLLLLLa. Wire connection is reversed at SIG+ & SIG-
—Check the Load Cell connector to see if the polarity of signal
is reversed
b. The load cell receipting direction is wrong
—Check all load cells for correction installation
2. CCCCCCCThe calibrate weight is too light
–The calibrate weight should be at least 100 times of the
minimum division

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3. -------The output signal of Load Cell is inadequate for Span Calibration.
—To decrease the Display Resolution.
–To change Load Cells with higher output signal.
4. UUUUUUUa. The input signal is too high (more than +15 mV)
—Replace new Load Cells with bigger capacities.
b. Load Cells were damaged.
–To replace with new Load Cells.
c. Poor connection.
—To check the connector wirings.