Yaohua Weighing System XK3190-A15 User manual

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Shanghai Yaohua Weighing System Co.,Ltd. 1
Weighing Indicator
Model:XK3190-A15
Attention:
Please read this user’s manual
carefully before operating the
indicator!

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Content
1. Specifications ---3
2. Installation and Keypad ---4
2.1. Front and Back View of the indicator
2.2. Connecting the Load Cell to the Indicator
2.3. Keypad
2.4. Communication(optional)
3. Calibration ---9
4. Operating Instructions ---12
4.1. Switching on
4.2. Zero-setting
4.3. Tare Operation
4.4. Parameter Setting
4.5. Price computing operation
4.6. Counting operation
4.7. Accumulation and Accumulation clear(MC)
4.8. Alarm for fixed value of low/high limit
4.9. Pre-taring
5. Errors Information ---17
6. Guide for battery ---18

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Specifications
1. Model:XK3190-A15
2. Accuracy:Class Ⅲ ，N＝3000
3. Simulation Part
3.1. Conversion Principle: ∑-∆
3.2. Input Signal Range:-2mV~13mV
3.3. Sample Rated:10~15 times/sec
3.4. Stimulating Voltage:DC 5V
4. Display
4.1. Totally 21-bits LCD,0.56 inches character height including 7
bits for weight;6 bits for unit price/unit weight;7 bits for
sum/quantity
4.2. 10 status indicating
5. Powersupply:AC 187~242V;Frequency 49~50HZ
Built in rechargeable battery,6V/4AH
6. Fuse：500mA
7. Pre-heat time:15~30 minutes
8. Operation Temp/RH:0~40 ℃ ；≤85％RH
9. Storage/Transportation Tem:-25 ℃ ～55 ℃
10. Dimension:260×190×170mm; Weight:1.75KG
11. Optional:one output connected to controlling units;RS232
interface,connected to PC or scoreboard.

Sepalizing in indicator,Being perfect in indicator
Installation and Keypad
1. Front and Back View of the indicator
1.1. Front View
1.2. Back View
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2. Connecting the Load Cell to the Indicator
2.1. The 9-pin socket is used for the connection of the load cell,as
shown below:
Shanghai Yaohua Weighing System Co.,Ltd. 5
12 3 4 5
6789
-
V Shield
+V
-I
N
+I
N
2.2. The below graph clearly shows the connection of the load cell
and the indicator
Shield
8 -I
N
9 +I
N
1
-V
6 +
V +
_
Terminal o
f
Indicator Terminal o
f
Sensor
Bridgeo
f
Power
Su
p
p
ly
SignalOut
p
ut
5
+
_
2.3. ▲！Warning:Connection of indicator and load cell must be
reliable and the operation should be in power off statement.
2.4. ▲！Warning:After connection,the 9-pin socket must be fixed to
ensure the security.No plugging or pulling the connection
freely.And be sure the connection must be operated under power
off statement.
2.5. ▲！Warning:As both the load cell and indicator are sensitive
to the static electricity,anti-static measures must be taken.No
soldering operation or other strong electricity operation is
permitted.And anti-thunder measurements also should be taken
to avoid any injury to the devices or the operators.

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3. Keypad(all valid in weighing status)
3.1. Function of single key
A[Zero]:Indicator will come to zero,the ”Zero” light will be
on;Press [Zero] again,it will come to the gross weight
status,the “Zero” light will be off
B[Tare]:The current weight value will be regarded as tare
weight,the “Tare” light will be on.
C[M+]:The current sum(quantity) will be added to the
accumulated value.The u.p(u.w) display will show the
accumulated number,the sum(quantity)display will show the
accumulated value,the “M+” light will be on.When the value is
over 999999,the sum(quantity) display will show”Over”.
D[MC]:The accumulated number and accumulated sum(quatity) will
be cleared out.The “M+” light will be off.
E[Delete]:Delete the current input u.p(u.w) value
F[.Value]:In counting status,press this key,decimal point for
the u.w can be entered into.
G[Quantity]:Confirm key while setting parameter;Confirm key
while setting quantity number in counting operation
H[Unit W]:Confirm key while setting unit weight;Quit key while
setteing parameter
I[On]:Turn on the indicator
J[Off]:Turn off the indicato
K[0~9]:Numeric key
3.2. Function of combined keys
A[Quantity]+[.Value]:When the calibration jumper is plugged
on,first press[Quantity],then press[.Value],it will enter
into calibration status

Sepalizing in indicator,Being perfect in indicator
B[Quantity]+[0]:While in the weighing status,first
press[Quantity],then press[0],it will enter into the inner
code display statement.The ”Code” light is on.Repeat the
operation again,the “Code” light will be off.
C[Quantity]+[MC]:While in the weighing status,first
press[Quantity],then press[MC],it will enter into the
parameter-setting statement.
D[Quantity]+[Tare]:While in the counting status,first
press[Quantity],then press[Tare],it will enter into the
pre-tare statement.
4. Communication(Optional)
4.1. Definition of the communication interface
XK3190-A15 has the optional part of the RS232 interface and
alarm signal output.The interface is shown below:
Pin 3 TXD is used for the output of RS232
Pin 5 GND is used for the ground connected
Pin 9 CTRO_O is used for the output of the alarm signal
4.2. The communication method is continuous sening,the data format
is:7 bits for weight value(low data in front of high data),1
bit for sign.For example:
The weight value is 200.0KG,the communication data will
be:=0.002000
The weight value is -200.0KG,the communication data will
be:=0.00200-
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4.3. The fixed value alarm output graph:
The output can be connected to the voice/light alarming system
or other controlling unit,for details,pls refer below:
Attention:▲！Assure the current from Pin 7 no more than 100mA
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Calibration
1. Connect load cell properly,then turn on the indicator,it will
perform self-checking,then enter into the weighing
statement.(15~30 minutes pre-heat is necessary to assure
excellent performance)
2. Put the jumper inside the indicator at ”On” location(the default
location is just “On”),then calibrate as shown table:
Step Operation Display Notes
1
[Quantity] +
[.Value]
[ PASS ]
[000000]
[ ]
E
nter the calibration,notes for
inputting the password
2
Input the
password by
keypad,,Pre
ss[Quantity
]for
confirm
[ PASS ]
[ 319015]
[ ]
Password：319015
3
Press[2],Pre
ss[Quantity]
for confirm
[ E ]
[ 002 ]
[ ]
Enter division optional:
1/2/5/10/20/50/100/200,if the
o
riginal divison is accepted,then
press[Quantity]for confirm
Example: 2
4
Press[2],
press[Quanti
ty]for
confirm
[ POS ]
[ 2 ]
[ ]
Enter decimal number (0~4)
Example: 2
5
[2Ero ]
[WXYZ ]
[ ]
Set the Zero parameter（Detail in
Note 2-1）
W：Zero track speed X：Zero track
range
Y：manual zero setting range Z：
auto zero setting range
6
Press[1][2][
4],Press[Qua
ntity]for
confirm
[2Ero ]
[0124 ]
[ ]
Example:0124
7
Display:
[FLT ]
[XYZ ]
[ ]
Set the digital filter intensity
（Detail in Note 2-2）
X anti-vibration select Y stable
range Z filter insensity ，the
high value it is,t
h
e more filter
i
nsensity and the lower response
i
t is.The parameter 012 is

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strongly recommended
8
Press[0][1][
2],Press[Qua
ntity]for
confirm
Display
[FLT ]
[012 ]
[ ]
Example:012
9
Press[6][0][
0][0] ，
t
hen
press[Quanti
ty]for
confirm
Display
[FULL ]
[006000]
[******]
Input full range:
6000
10
After
stability,pr
ess[Quantity
]for confirm
[ noLoAd ]
[SurE ]
[ ******]
Zero- point calibration
11
After 5~10
seconds
stability ，
press[6][0][
0][0] ，
t
hen
press[Quanti
ty]for
confirm
[AdLoAd1 ]
[006000 ]
[****** ]
Linearity calibration ：Put
c
ertain load,the more close to
t
he full range,the better it
i
s.After 5~10 seconds
s
tability,input the actul
value of the loaded weight
Example：6000
12
Calibration
over,return
to the
weighing
status
[ ****** ]
[ ****** ]
[ ****** ]
Note 2-3
Note 2-1,Pn parameter setting:
W 0 1 2 3
Zero track speed 0.4second 0.3second 0.2second 0.1second
X 0 1 2 3 4 5 6 7 8 9
Zero track
range
No
track
0.5
e
1.0
e
1.5
e
2.0
e
2.5
e
3.0
e
3.5
e
4.0
e
4.5
e
Y 1 2 3 4 5
manual zero setting
range
2％F.S 4%F.S 10%F.S 20%F.S 100%F.S
Z 1 2 3 4 5
auto zero setting
range
2%F.S 4%F.S 10%F.S 20%F.S 100%F.S

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Note 2-2:
Xanti-vibration select:0 stands for turn off;1 stands for turn
on
Ystable range:the parameter 0～3 corresponds to the range 0.5d、
1.0d、1.5d、2.0d respectively
Zfilter insensity: the high value it is,the more filter insensity
and the lower response it is.
Note 2-3
From step 1 to step 8,press[Unit W] will quit calibration

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Operating Instructions
1. Switching on(15 ～30 minutes pre-heat will assure excellent
performance)
1.1. Press[ON],the indicator will perfom self-checking.
1.2. After self-checking,the indicator will come into the status of
price computing or counting.
Attention:▲！For the first time the rechargeable battery is used,it
must be fully charged.
2. Manually Zero-setting
When the gross weight in within the zero setting
range,press[zero],indicator will perform zero.When tare is
applied,pressing [zero]won’t effect.
3. Tare
When the value is stable,not negative,and without the zero
range,press[Tare],indicator will perform tare,the “Tare”light
will be on.Repress[Tare],the “Tare”light will be off.
4. Parameter Setting
4.1. The parameter includes working method setting、background light
setting 、fixed value alarm setting 、Baud rate setting.The
operaton step is shown below：
4.2.
Step Operation Display Notes
1
In weighing
status ，
press[Quantity]
+ [MC]，
t
hen come
into parameter
setting
[FUnC ]
[* ]
[ ]
Enter into t
h
e first step of
parameter setting
2
Working method
setting:Press[0]
,then
[FunC ]
[* ]
[ ]
Working method set:
0 stands for counting
1 stands for price computing

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press[Quantity]
for confirm
Example：0
3
Background light
setting ：
press[1],then
press[Quantity]
for confirm
[bL ]
[* ]
[ ]
Background light setting:0~3
0 No background light
1 While gross weight is
z
ero,background light will
be off after 15 seconds
2
W
hile net weight is
z
ero,background light will
be off after 15 seconds
3 All the time,the
background light is on
Example：1
4
Fixed value
alarm setting ：
press[0][1][1]
,then
press[Quantity]
for confirm
[Lt ]
[XYZ ]
[ ]
Fixed value alarm setting：
X while alarming,the buzzer
speak or not
Y Check the fixed value while
stable or not
Z Alarm method（Note 4-1）
Example：011
5
Baud rate
setting ：
press[0],then
press[Quantity]
for confirm
[bAUd ]
[* ]
[ ]
Baud rate：
0 600；1 1200；2 2400；3
4800
4 9600; 5 19200
6
Return the
weighing status
[ ****** ]
[ ******]
[ ******]
Then indicator will work
accord
i
ng to the above set
parameter.
Note 4-1
X:0 stands for the buzzer speak;1 stands for the buzzer doesn’t
speak
Y:0 stands for check the fixed value whether stable or not;1 stands
for check the fixed value while it is stable
Z:0 stands for alarm while it is less than the low limit;1 stands
for alarm while it is between the high limit and low limit;2 stands
for alarm while it is more than the high limit;3 stands for alarm
while it is less than the low limit or more than the high limit
5. Price computing operation
In the price computing status,the unit price can be entered by the
keypad,then the sum display the value according to the current unit
price.while the weight is negative,the sum will always be 0.While
the weight is stable,accumulation operation can be valid.
The decimal point of the unit price and sum is fixed as two.The

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maximum unit price is :9999.99 and maximum sum is:9999.99.If the
sum is over 9999.99,it will display “oUer”.
6. Counting operation
Two methods of the counting operation:one is the unit weight is
unknown,then get the unit weight by putting some quantities of the
samples and putting the number;the other is the unit weight is
known,then press[Unit W] to operate counting.Pls see the following
for detail:
6.1. Unit weight unkown:Put some quantities of samples,then while
the weight is stable,input the actual number of the
samples,press[Quantity] for confirm.After the indicator
calculate the unit weight,then counting operation can be
performed.
6.2. Unit weight known:Input the unit weight of the to be counted
sample,press[Unit W] for confirm,then counting operation can
be performed.
Notes:
AThe unit of the unit weight is g.And the decimal point of the
unit weight is decided by that of the weight.
BFor 6.1,the advised sample number is over 50.
CIf the weight is negative,the indicator won’t count.If the unit
weight is less than 0.25 division,the indicator will
display”L” to show the unit weight isn’t enough.If the unit
weight calculated by “Quantity” is less than 0.05 division,the
indicator will display”Err 10” to show sample not enough.
7. Accumulation(M+) and Accumulation clear(MC)
The operation is shown as below:

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Step Operation Display Notes
1
When there is
value of
sum/quantity,pr
ess[M+]
[ ****** ]
[Add ***]
[ ******]
Operaiton：
W
hen the weight
i
s unchanged,Unit P/Unit W
d
isplays the accumulated
number,sum/quantity
d
isplay the accumulated
result,the “+” light is on
2
Return to the
weighing status by
few seconds
display,one M+
operation is over
[ ****** ]
[ ******]
[ ******]
Note 7-1
3
Manully zero the
indicator,perfo
rm another price
computing or
counting
[ ****** ]
[ ******]
[ ******]
A
fter weight is zero or
b
elow,or perform tare
o
peration,load again for a
s
econd price
computing/quantity
4
When there is
value of
sum/quantity,pr
ess[M+]
[ ****** ]
[Add ***]
[ ******]
A second M+
…… More operation
of M+
…… ……
5
Manully zero the
indicator,perfo
rm another price
computing or
counting,press[
M+]
[ ****** ]
[Add ***]
[ ******]
Display ：
T
he weight is
uncha
n
ged,Unit P/Unit W
d
isplays the accumulated
number,sum/quantity
d
isplay the accumulated
result
6
Press[MC] Data
display
unchanged
MC：
t
he accumulated number
will
be
z
ero,the accumulate
r
esult will be zero,the
“+” light be off
Note 7-1:
The maximum accumulated value is 9999999 while the accumulated
number is within limit;The maximum accumulated number is 255 while
the accumulated number is within limit.It will display”oF”if the
number or value is out of the limit.
8. Alarm for fixed value counting
While in the counting status,the indicator has the function of
low/high limit fixed value alarm.First,set the fixed value,pls
refer below:

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Step Operation Display Notes
1
While in
counting
status,press[Va
lue] to set the
low limit
[LLLLLLL]
[ ******]
[ ]
Low limit setting
2
Press[1][0][0][
0]
Then
press[Quantit
y]for
confirm,direc
t to step 4
[LLLLLLL]
[ ******]
[ ]
I
nput the low
limit,press[Value]for
c
onfirm,come to step 3,or
p
ress[Quantity] directly to
step 4. Note 8-1
Example：1000
3
High limit
setting ：
press[2][0][0][
0],then
press[Quantity]
for confirm
[HHHHHHH]
[ ******]
[ ]
High limit setting：input the
h
igh limit,then
press[Quantity] for confirm
Example：2000
4
Return to the
weighing status
[ ******]
[ ******]
[ ******]
Note 8-1:
If the low limit is 0,any value the high limit it is,the alarm
function will be forbidden
9. Pre-taring
Pre-taring operation is valid in the counting status.Pls operate
as following:
Press[Quantity]+[Tare] to enter into the pre-taring operation,the
indicator display“[PrESEt][******][ ]”,then input the
pre-tare value,press[Quantity] for confirm,the indicator will
return to the counting status.The weight will display the net value
concerned to the pre-tare value,the “Tare”light is on.
10. Code
For view the inner code,pls operate as folloing:press[Quantity]+[0]
while in the weighing status to display the inner code,then the
“Code” light is on.Press [Quantity]+[0] again to quit.Then inner
code and outer division rate is 20:1,that is to say one division
corresponds to 20 inner codes.

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Errors Information
1. For details of the error information,pls refer to the following
table:
Error Notes Solution
[Err 01]
[ ******]
[ ******]
The analog signal is
seriously negative
C
heck the connection of the
load cell and indicator
[Err 02]
[ ******]
[ ******]
The analog signal is
too high or error
from load cell
C
heck the connection of the
load cell and indicator
[Err 03]
[ ******]
[ ******]
The weight is
overloaded 1．
I
f the indicator hasn’t
b
een calibrated,calibrate
it.
2．Decrease the weight so
t
hat it is within the full
range
3．Re-set the full range
[Err 10]
[ ******]
[ ******]
The unit weight
isn’t enough 1．Re-
s
elect the load cell
with high precision
2．Increse the samples。
[Err 13]
[ ******]
[ ******]
Parameter is
wrongly set
Re-set the parameter
[Err 11]
[ ******]
[ ******]
The loaded analog
signal is too weak
while calibration
D
ecrease the full range or
s
elect load cell with
more range sensitivity
[Err 15]
[ ******]
[ ******]
The full range too
small
F
ull range should be more
than 100
[Err 23]
[ ******]
[ ******]
Memory defective
C
heck the memory on the
m
ain board or the circuit
t
o see whether therer is
s
horted or
opened,otherwise,change
the memroy

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Shanghai Yaohua Weighing System Co.,Ltd. 18
Guide for battery
1. When AC 220 V is on,then the battery will charge automatically.
2. Attention:Red wire stands for positive while blace wire stands
for negative.
3. The first time charge for the battery,pls take more than 24 hours
to assure the security and stability of the battery.