Operators Manual
XK315A1W Series Wireless Weighing Indicators
Applications: Electronic platform scale, weighing scale, etc.
1. Introduction
Wireless Communication Frequency
Wireless Communication Distance
Wireless Communication Rate
Display
Division
Serial Interface
Connect by RS232
Weight Unit
Decimal System/Hexadecimal System
External AC Adapter
Rechargeable Internal Battery
Operating Temperature
Storage Temperature
Relative Humidity
Dimensions
Weight
Version
430 MHz
30M/1500M (optional)
9600bps
XK315A1W: 6-digit 0.8 inches red LED
XK315A1GB-W: 6-digit 0.8 inches green LED
XK315A1GB-5-W: 6-digit 0.8 inches green LED
1/2/5/10/20/50/0.1/0.2/0.5/0.01/0.02/0.05/0.001/0.002/0.005
RS232 interface with continuous data output
Baud rate 1200, 2400, 4800, 9600
Optional RS485 interface
Display, computer, printer, etc.
kg/lb/UU (user unit should be set in factory)
lb and UU can be in two systems
100-240VAC 50/60Hz
6V/4AH
10 C to +40 C
25 C to +55 C
10% to 85% non-condensing
XK315A1W: 220140130 (mm)
XK315A1GB-W: 260222161 (mm)
XK315A1GB-5-W: 26516258 (mm)
2kg
VER 22.0
2. Wireless Connection
Note: One wireless indicator only can connect with one wireless weighing transmitter, and both
wireless communication frequencies should be same. Wireless communication frequencies are set in
factory and user cannot change. Regular wireless communication frequency is 430MHz
If user wants to use two or more than two set of wireless weighing indicator and wireless weighing
transmitter, wireless communication frequencies must be different. Please let salesman know and
wireless communication frequencies will be set in factory.
1. Connect wireless weighing transmitter with load cell.
2. Switch on wireless weighing transmitter until the wireless function works.
3. Switch on wireless weighing indicator and calibrate.
4. In configuration mode, set Con to Con=78.
5. When indicator wireless lamp flashes, wireless weighing transmitter and wireless weighing indicator
are connecting.
6. Then, to calibrate wireless weighing indicator and configure.
7. RS-232C D-B 9: Pin 3 Output (TXD) and Pin 5 Signal Ground (GND)
8.
RS232 interface is continuous data output
9. Address = 0continuous data output, form is =,X1,X2,X3,X4,X5,X6, while X1,X2,X3,X4,X5,X6 is
data,= is break. E.g.: if weigh is 123.45kg, data will be = 54.321 =54.321
Address = 99continuous data output, form is =,X6,X5,X4,X3,X2,X1, while X6,X5,X4,X3,X2,X1 is
data,= is break. E.g.: if weigh 123.45kg, data will be = 123.45= 123.45
3. Keypad Function and Status Indicators
ON: Switch on XK315A1W
OFF: Switch off XK315A1W
: Manual accumulation mode
*: Select function and configure
: Move flashing digit
: Increase flashing digit and high resolution
0: Zero, tare and decrease flashing digit
AC: Mains power applied
: Battery capacity 
AUT: Automatic accumulation mode
T: Tare mode
lb: lb mode
wireless: Wireless connected
: Weight stable
0: Zero mode
UU: User weighing unit mode
4. Configuration
1. Correct connect load cell  wireless weighing transmitter  wireless weighing indicator
2. Configure as follow step
3. Press * to configure and next step
Step
1
Operation
Displaying
Press 0 000000
On
999999
Descriptions
In switch off states, press 0 key and ON to switch on
indicator. Segment checks, and displays [UE-22.0] to configure and
calibrate
Press *
Press *
CAL SP Indicator in calibration mode
 -SEt-  Indicator in configuration mode
Press 
Select division
Press 
Or 0
0.001-0.002-0.005-10-20-50-100-200-500-0.10-0.20-0.50-1-2
-5-0.1-0.2-0.5-0.01-0.02-0.05
Factory default d = 0.01
Press *
Press 
Press 
 6000
000000
001000
015000
Set full scale
Press  to move digit
Press  to increase digit
Press 0 to decrease digit
Factory default FS = 150.00
Press *
Press 
Press 
Or 0
FLt 1
Filter range: 0 ~ 2
0-fastest 2-slowest
Digit flashes
Factory default Filter = 2
Press *
Press 
Press 
Or 0
AUtP00
Ones digit means automatic switch off function:
Ones digit0,2,4 means automatic switch off function enable
Ones digit1,3,5 means automatic switch off function disable
Tens digit means range of zero track (0~9):
0:0.4d 1:0.4d 2:0.8d 3:1.2d 4:1.6d 5:2.0d
6:2.4d 7:2.8d 8:3.2d 9:3.6d
Tens digit also means range of zero:
Tens digit0 means no zero set at start operation
Tens digit1:
2
Ones digit =0 means zero when weight is 2FS,
switch off function disable
Ones digit=1 means zero when weight is 2FS,
switch off function enable
Ones digit=2 means zero when weight is 20FS,
switch off function disable
Ones digit=3 means zero when weight is 20FS,
switch off function enable
Ones digit=4 means zero when weight is 50FS,
switch off function disable
Ones digit=5 means zero when weight is 50FS,
switch off function enable
Tens digit flashes.
Factory default AUtP = 11
7
Press *
Press 
Press 
Or 0
Adr 00
Select address:
Continuous data output , Adr=00 or Adr=99
Communicate is by modbus between 01-95
Factory default Address = 00
Press *
Press 
Or 0
b 2400
b 4800
Select baud rate:
1200240048009600
Factory default baud rate = 2400
Press *
Confirm configuration
and automatic
and automatic
and automatic
and automatic
and automatic
and automatic
5. Wireless Communicate
After above configuration, set the wireless communicate
Step
Operation
Displaying
Descriptions
Press
Press
Press
Press
Press
*
*
*
*
*
CAL SP
 -SEt-
 -A-d- 
FACT 
Con 
Indicator in calibration mode
Indicator in configuration mode
Enter ADC counts display
Back to factory set
Set wireless communicate address
Press 
Con 78
Enter address which is same as wireless weighing transmitter
Press *
Back to weight states
Press *
ConSEA
Search wireless communicate address automatically
Press 
Con xx
Con-78
Search wireless weighing transmitter
When indicator searched wireless weighing transmitter, it will display
the address (go to step 6 or step 7)
Press 
2300
Follow step 5, save the address and return to weighing mode
Press *
2300
Follow step 5, delete the address and return to weighing mode
2300
6. Calibrate
After above setting, calibrate indicator directly:
Step
Operation
Displaying
Descriptions
Press *
Press 
CAL SP
CAL 00
Indicator in calibration mode
Enter to set ZERO
Press *
------
 3000
Set ZERO
After several seconds, indicator displays maximum weight
Load max weight
Press *
Display weight
Press 
Press 
Or 0
000000
Press *
------
 2000
3000
002000
If the weight is not the max weight, press  and  or
0 to input actually weight
e.g.: weight is 2000
Calibrate
After several seconds, indicator displays weight, then finish
calibrate
7. ADC Counts Display
Confirm load cell connect is correct to check ADC counts. After set the short pin, ADC counts should around
100000-200000. After above setting, check ADC counts directly:
Step
Operation
Displaying
Press *
CAL SP
Press *
 -SEt-
Indicator in configuration mode
Press *
-A -d-
ADC counts display
Press 
 43125
Enter to check ADC counts, and display 43125
Press *
Return to weighing mode
Descriptions
Indicator in calibration mode
8. Factory Set
Step
Operation
Displaying
Press *
CAL SP
Press *
 -SEt-
Indicator in configuration mode
Press *
-A -d-
Indicator in ADC counts display mode
Press *
FACt
Press 
Descriptions
Indicator in calibration mode
Select Back to factory set
Back to factory set and return to weighing mode
Factory default: d=0.01FS=150.00FLt=2AUtP=11Adr=00b=2400
9. Weighing Unit
Step
Operation
Displaying
Press *
On
000000
999999
Press * and ON to switch on indicator
If it displays [UE=21.X], user can set own unit
Press 
 2.0000
Select unit
Press 
000000
Digit flash
Press 
0
01.6535
Change digit number
If user unit is Hong Kong kg, enter 1.6535
Press *
HE
Decimal/Hexadecimal(lb And UU)
0---Decimal
1---Hexadecimal
Hexadecimal displays automatically retain two decimal points. 2
Descriptions
After The Decimal Point Every 16 Binary
6
Press 
HE
Digit flash
Press 
0
HE
Change digit
Press *
d 0. 0.0
Set display form when unit is lb or UU
HE=1, d has two situations: 0. 0.0 and 0. 0
Press 
0
d 0. 0
Change situation
10
Press *
Save setting and return to weighing mode
10. Operation
1. ON/OFF Press ON switch on indicator; and press OFF to switch off indicator.
2. ZERO Press 0 for more than two seconds when Weight is 2F.S, weight is ZERO and
0 will be displayed
3.
TARE
a. Weight tare When T turns off and weight is 0 stable, press 0 to display Zero and
T turns on
b. Remove tare When T turns on, press 0 to clear tare and T turn off
c. Number tare Press  to set tare. Press   to enter tare (unit is kg), and press 0
to save tare and T turns on
d. Accumulation
In manual accumulation mode, weight is 20d stable, press  to accumulate
weight and display accumulation times, e.g.: n 12
Note: one weighing result only can accumulate one time, next accumulation weight must after weight
20d.
4. High resolution In weighing mode, press  to display the weight in X10 resolution and last
decimal point turns on. Press  again to show regular weighing resolution.
Note: In lb and UU mode, indicator has no high resolution function.
5. Display accumulation (in weighing mode)
Step
Operation
Displaying
Descriptions
Press *
12
Display accumulation times
Press 
23
Display upper 4 digits of accumulated weight, e.g.: 23
Press 
L506.5
Display upper 4 digits of accumulated weight, e.g.: 506.5
So, the accumulated weight is 23506.5
Accumulated is Decimal even weight is Hexadecimal.
6. Select weighing mode (in weighing mode)
Step
Operation
Displaying
Press *
Press *
Aut 0
12
Descriptions
Display accumulation times
Select manual/automatically accumulation
Aut=0: regular weighing mode and manual accumulation
Aut=1: regular weighing modeautomatically accumulation after
stable, and -AUT- turns on
Aut=2: regular weighing modesave weight automatically after
stable, accumulate finial weight which is unload 20d, -AUT-
turns on
Aut=3: animal weighing mode, accumulate automatically finial
weight which is unload 20d, -AUT- turns on
Aut=4: peak hold mode, accumulate automatically finial weight
which is unload 20d, -AUT- turns on
Aut=5: animal weighing mode and manual accumulation
Aut=6: peak hold mode and manual accumulation
Aut=7: counting mode and manual accumulation
Aut=8: double-way weighing mode, weight pressure and pull from
positive and negative way
Aut=9: Minus weighing mode
3
Press 
Press 
Or 0
Aut 0
Change mode
Press *
Lock time of animal function when Aut=3 or this step display on
Aut=3. Otherwise , return to weighing mode
t=0-9 second, and weighted is average during lock time.
Press 
Or 0
Change lock time
Press *
Return to weighing mode
7. Clear accumulation
Press * to display accumulation data and press 0 to clear
accumulation data.
8. Enter number Press  to move flashing digit, press  to increase flashing digit and press
0 to decrease flashing digit.
9. Rechargeable internal battery Switch on indicator and display Pbt 85 means battery capacity is
85%
10. Remind charge battery
When battery capacity is 30%, 
 turns on to remind user charge
battery. When battery capacity is 10%, display flashes to remind user charge battery immediately.
11. Over-discharge protection
When battery capacity is 0%, indicator will switch off automatically to
protect battery.
12. Save power mode In switch off automatically mode, display  to save power after three
minutes no operation.
13. Switch off automatically In switch off automatically mode, indicator will switch off after 30 minutes
no operation.
14. Full charge battery operation
Indicator can work 30 hours continually.
15. kglbUU
Press * more than 2 second to change weighing unit. The change order is
kglbUUkg.
16. When wireless weighing transmitter battery capacity is 10%, up digit displays b, e.g.: b 3.00
11. Counting Mode (AUT=7)
1. Sample data Put samples on scale when net weight is zero (TARE when net weight is not zero).
Sample amount should between from 1 to 999, and more samples, weight will be more accurate.
Step
Operation
Displaying
Load samples
press 
Cnt000
Enter sample amount
press 
Cnt030
Enter sample amount 30
27
Descriptions
Display weighing of samples
press 
or 0
4
press *
30
Save samples data and display samples amount
press 
27
Press  to change weighing and amount displaying
2. Operation put the weight on scale, number is weight when indicator displays 
54, and number
is amount when indicator displays C 60. Press  to change weight and amount displaying. After
the sample weight is stable, press  to displays accumulate weight and amount.
3. Display and clear accumulated data
Step
Operation
Displaying
Descriptions
47 Indicator in counting mode
8 Display number of samples
Press *
Press 
C 532 Display accumulation number
Press *
47 Return to counting mode
Press 
42 Change to display weighing mode
Press *
8 Display number of samples
Press 
0 Display upper 4 digits of accumulated weight
Press 
L 471 Display lower 4 digits of accumulated weight
Press *
Press *
10
Press 0 C
42 Return to weighing mode
8 Display number of samples
47 Delete accumulation weightand return to counting mode
When indicator displays accumulation times, press 0 to delete accumulation weight.
12. Double-Way Weighing Mode (AUT=8)
1. Indicator can receive positive and negative signal.
2. When the weight signal is positive, indicator displays positive weight number and it can be TARE
When the weight signal is negative, indicator displays negative weight number and it cannot be Tare
3. In double-way weighing mode, indicator hasnt Accumulation and printer function.
13. Minus Weighing Mode (AUT=9)
1. Indictor displays moved weight
2. Operation: put the weighing on scale and press 0 for long time to zero. If move the weigh,
indicator will display moved weigh. (the number is positive)
3. In minus weighing mode, indicator has TARE, Accumulation and printer functions.
14. Printer format
Indicator connect printer by serial interface: Adr=01-95: press  to output print signal in accumulation
mode.
Print form:
O: 0002
G: 7.73kg
T: 4.82kg
N: 2.91kg
Counting mode
NO: 0002
G: 7.73kg
T: 4.82kg
N: 2.91kg
C: 54pcs
Accumulation mode
NO: 0002
S: 5.82kg
Accumulation with counting mode:
NO: 0002
C: 108pcs
S: 5.82kg
15. Safety precautions
1. Do not expose indicators to either direct sun light or any heat sources.
2. Do not use indicators in hazardous area or in dusty environments.
3. Weight cannot more than max weighing
4. Do not use strong solvents (such as: benzene, nitric acid oil) to clean the indicators.
5. Never flood the Indicator, immerse it in liquid or pour liquids on it.
6. Do not open the indicator! The warranty is void if this stipulation is ignored. The indicator may only be
opened by authorized persons.
7. Battery is recharged when AC power connects.
8. Use short pin to test indicator: if indicator doesnt displays weight number, please switch off it, take off
load cell connector and take on short pin. Switch on indicator, after displays 0-9 self-test patterns. See
following two situations:
a. Indicator displaying one number means indicator works well.
b. Indicator displaying many mass numbers means indicator needs repair.
16. Services
The Warranty time is in one year after sale date of non-human failure. Indicator is lifelong service.
(NOTE: Battery is not under warranty)
17. LED Error Code
Code
Meaning
 OUEr 
Weight > FS + 9d
OUEr 
Weight  -20d or 100%FS (in double-way weighing mode)
Weight number flashing
bxxxxx
30% battery warning to recharge the battery
10% battery warning to recharge the battery
Wireless weighing transmitter 10% battery warning to recharge the battery