SellEton SL-928-W Portable Weight Scale Pads Plus Indicator

Safety Instruction

• For safety operation, pls. Follow the safety instructions.
• WARNING: Setting, Calibration Inspection, and Maintenance ot the instrument is prohibited by Non-professional staff.
• WARNING: Pls_ make sure the weighing display has a good ground in use.
• WARNING: The instrument is the static and sensitive equipment; cut off the power during electrical connections, touching internal components with your hand is prohibited, and please take measures the ensure antistatic.

Product Introduction

Main Function

• The SL-928-W wireless axle weighing scale can work with the portable static wireless weighing instrument, which can connect with 1 transmitter to weigh the truck. The effective distance is 80 meters.
• Axle scale owns a normal weighting mode or an accumulative weighting mode. Various weighing methods can meet different requirements, and the wireless communication simplifies the indicator is powered by a 6V/4Ah battery, and it can be powered by 9V11 _2A adapter. It can be equipped with a built-in needle printer to print real-time date and time.
• LCD (size: 136mmx36_5mm) shows the real weight data on the weighing pad, it can view each scale’s information by the “switch” key and show the percentage of this scale. The indicator has tare, zero, print, store, and delete functions.
• The transmitter is powered by a 3.7V/4Ah battery, and it can be recharged by a 42V/1A charger. It can work for 40H_
• The indicator is easy to operate, highly precise, application, long working life, and is convenient to carry.

Technical Parameter

Instrument Technical Parameter

Drawing

Instrument

Indicator Type

Type	Support	Print	Interface	Communication interface
SL-7561ARF	X	✓	front	M16-3B
SL-7561BRF	✓	✓	bottom	DB9
SL-7561NRF	✓	X	bottom	DB9

Kinds of Scale Board

• The axle scale board can be divided by slope: ordinary slope diversion: “Y” type; inverted slope diversion: ” E” type; narrow slope diversion: “F” type.

Scale type	Scale material	Scale thickness (mm)	Slope name	Slope material	Slope size (mm)	Sensor type
SL-928-W-Y	aluminium alloy	20	Ordinary slope	aluminium alloy	100*50	LP7110H-1~3t
SL-928-W-E	aluminium alloy	20	Inverted slope	aluminium alloy	50*50	LP7110H-1~3t
				rubber	180*40	LP7110H-1~3t
SL-928-W-F	aluminium alloy	20	Narrow slope	aluminium alloy	50*50	LP7110H-1~3t

Scale Specification Parameters

Example: scale size is 400*500 (mm), the corresponding appearance of the scale board is as follows:

Number	Scale version	Range	Size			Scale weight (kg)	Senor’s number
			A	B	C
1	SL-928-W-YZ-3040-0 5t~5	0 5t~5t	300	400	540	15	4*LP7110H 1~3t
2	SL-928-W-YZ-4050-1 5t~5	1 5t~5t	400	500	640	18	4*LP7110H 1~3t
3	SL-928-W-YZ-4570-5t~15t	5t~15t	450	700	690	30	6*LP7110H 1~3t
4	SL-928-W-YZ-5090-10t~2	10t~20t	500	900	740	50	8*LP7110H 1~3t
5	SL-928-W-YZ-6090-10t~2	10t~20t	600	900	840	65	8*LP7110H 1~3t
6	SL-928-W-EZ-3040-0 5t~5t	0 5t~5t	300	400	410	16	4*LP7110H 1~3t
7	SL-928-W-EZ-4050-1 5t~5t	1 5t~5t	400	500	510	20	4*LP7110H 1~3t
8	SL-928-W-EZ-4570-5t~15t	5t~15t	450	700	560	35	6*LP7110H 1~3t
9	SL-928-W-EZ-5090-10t~20	10t~20t	500	900	610	60	8*LP7110H 1~3t
10	SL-928-W-EZ-6090-10t~20	10t~20t	600	900	710	75	8*LP7110H 1~3t
11~15	The SL-928-W-F Scale specification parameters can refer to SL-928-W-E

Battery Instruction

Storage Battery Instruction

1. When you use the internal battery first time, you should charge the battery fully to prevent low voltage resulted from self leakage of battery.
2. When the “” is flashing, it means low battery. Please charge it in time.
3. Whenand no flashing, it means fully charged.
4. If the battery is not used for a long time, take it out to avoid leakage.
5. To keep the battery in best using condition, it is suggest that you fully discharge the battery every month, the method is that using the instrument till it is automatically power off.

Lithium Battery Instruction

1. When you use the internal battery first time, you should charge the battery fully, to prevent low voltage resulted from self leakage of battery.
2. When the flashes appear on the left side of the LCD, it means low battery. Please charge it in time, the red light on the charger turns on.
   • (Remarks: If it turns off , the transmitter will shut down in few minutes.when the output turns off transmitter shuts down, which at the left from.)
3. When the green light of the charger turns on, it means fully charged.
4. If the battery is not used for a long time, please charge it once every two months.
5.  Check the battery voltage of each transmitter in the F7 menu, when the voltage is lower than 3.5v, transmitter need charge.

Installation And Calibration

Check

• Open the box and check all items according to the packing list. If some items are missing or broken, please contact our company immediately.
• Power Supply Connection
• The indicator is by 6V/4Ah battery and 9V/1 _2A adaptor;
• The transmitter is powered by 3_7V/4Ah Lithium Battery and 42V/1A charger;
• You plug the adapter directly into the “DC” pin on the back cover of the instrument is 0k.
• Note: The indicator adapter is different from the transmitter charger

Scale Number Setting

• The instrument is set [F31 X], where X is the scale number; the relationship of scale number and name is as follows.

Scale number	Scale name	Setting
1	LW1	[F31	1]
2	LW1,RW1	[F31	2]
3	LW1,LW2,RW2	[F31	3]
4	LW1,RW1,LW2,RW2	[F31	4]
6	LW1,RW1,LW2,RW2,LW3,RW3	[F31	6]

If you want to decrease the use of scales, just change the setting menu[F31 X].

Wireless Communication Parameter Setting

• A set of instruments and transmitters, their name must the otherwise, they can not work.
• If many sets of sales work together, every set of sales scales differently; otherwise they interfere with each other. The same as [PXXXXX], the network address details are in SL-928-W Operational Manual.

Weighting Mode Instruction

Normal Weighing Mode

• To set [F41 0] and [F34 1], the indicator is in manual weighing mode and normal printing format. It can connect 1/2/3/416 transmitters to weigh and “Print” the weighing data and save.
• Example: 3 weighing transmitter equipment connects with the instrument to weigh the aeroplane.
• a. The pads should connect with LWI, RWI, and LW2 transmitters;
• b. Parameter setting: working mode[F313]setting printing format[F34] setting “1”;
• c. Drive the plane on the pads. Press the “switch” button, and the instrument can display the total weight and the weight of each pad and the percentage of each pad’s weight from the total weight.
• Wait for the weighing to stabilise, and the weighing data will be printed and saved manually.

Accumulative Weighing Mode

• To set [F41 01 and [F34 2], the indicator is in manual weighing mode and accumulative printing format. Now, 2/4 16 pads should be connected to the transmitter.
• And press store button to accumulate the axle weight and print. Then press “print to print the total weight and save.
• Example: TW’O pads work with the instrument to weigh a truck with three axles.
• a. The pads should connect with the LWI, RWI transmitter.
• b. Parameter setting: working mode [F 31 2] setting “2”; printing format setting “2” [F34 2].
• c. Drive the first axle of the truck on the weighing pads. Press the “Switch” button, and the instrument can display the axle weight and the weight of the wheels and each wheel’s weight from the axle weight.
• The weighing data will be printed and saved manually by pressing the ” store” button.
• d. Drive the second axle of the truck on the weighing pads and repeat the 0# ratio, same as step c, accumulate and print the second axle weight
• e. Drive the third axle of the truck on the weighing pads and repeat the operation same as step c, accumulate and pnnt the third axle weight.
• f. After finishing the weight for three axles, it will print manually by pressing the “print” button.

Automatic Weighting Mode

• To set [F41 1], and set [F42 X], the “X” is the number of axles. The indicator is in automatic weighting mode after weight is stable, indicator will automatically print the weight and save the weighing record.
• Example: Two pads work with the instrument to weigh a truck with three axles.
• a. The pads should connect with the WI, R WI transmitter.
• b. Parameter setting: working mode[F31 2] setting “2”; printing format setting “2” [F34 2]; weigh mode setting “1” [F41 1]; Axles setting”3″ [F42 03].
• c. Drive the first axle of the truck on the weighing pads. After weight stably, the instrument will automatically print the weight and accumulate.
• d. Drive the second axle of the truck on the weighing pads and after weight stably, the instrument will automatically print the weight and accumulate.
• e. Drive the third axle of the truck on the weighing pads and after weight stably, the instrument will automatically print the weight and accumulate.
• f. After finishing the weight for three axles, the instrument will automatically print the total and save this weight record.
• Note: if you need to end printing early, press “Print” can print the total weight manually.

Communication Interface

• Communication interface can be divided into two types according to the style of aviation plug, M16-3 and DB9.RS232: MI 6-3B Pin definition as below.

Pin function and definition are as below:

M16-3B	Definition	Function
1	TXD	Sending data
2	RXD	Receiving data
3	GND	Ground interface

DB9 pin definition is as follows:

Pin function and definition are as below:

DB9	Definition	Function
1	TXD	Sending data
2	RXD	Receiving data
3	GND	Ground

Basic Operation And Instruction

Display And Keypad

Indicator Display And Keypad

Keypad

Lights Instruction

Light	Function	Color
TXD	Means sending a signal	Green
RXD	Means receiving a signal	Red

LCD

Transmitter’s Indicator And Keypad

Keypad

Lights Instruction

Light	Basic function	Color
Power	Sleep, Low battery	Red
TXD	Sending signal	Green
RXD	Receiving signal	Yellow

Lamp-state Instruction

Operation/Status	Display	Instruction
Press ON/OFF 1 second	Red and green flickering fleetly together; Red and yellow flickering fleetly together.	Red and green flickering together means power is on. Red and yellow flickering together means power off.
In the normal state	The green and yellow flickering interval is 1 second.	In the normal state, the dial address should be set to 1-6 successively.
In the sleep state	Red flickering, and flickers every 5 seconds.	If the instrument is not a waking transmitter, it will enter sleep state after the transmitter is powered on.
The dial address is set to “0”.	Red flickering fleetly, and flickering interval 0.2 seconds.	Special for transmitter wireless parameters setting, the dial address needs to be set to “0”.
Dial the address setting wrong	Three lights flickering together, and the flickering interval is 0.2 seconds.	If the dial address is not 0-6, the dial address is an error.
The transmitter’s wireless parameter setting is successful.	Red is on, yellow and green flickering twice.	After setting successfully, please restore the dial address.
The lithium battery power is too low.	Red flickering, and flickering interval 1 second.	The lithium battery power is lower than 3.5V, red light will flicker.

Power On & Off

• Note: when you want to use the scale, the transmitter should be turned on first, and then the indicator should be turned on to wake up the transmitter.

Indicator Power On

• Press “ON/OFF” for 1 second, the instrument will power on or power off. After power on, instrument self-inspection and wake transmitter. Now instrument’s TXD will flicker, means sending command to wake transmitter.
• After transmitters wake successfully, instrument’s RXD will flicker. After instrument self-inspection, LCD light then show the voltage of the battery, and finally into weighing mode.
• Note: after self-inspection,if the instrument prompts ERR01-ERR06, please check the antenna terminal is connected or not, the transmitter is working or not. Now, pressing “Switch” and “Print” can set the number of transmitters.
• If the instrument always can’t connect the scale, wait for twice self-inspection, the instrument is forced to start automatically. Press “Switch” and “Print”, enter the  “F92” menu, check or change the parameter of transmitter’s wireless mode.
• Please refer to the SL-928-W manual.

Transmitter Power On

• Press “ON/OFF” for 1 second.
• Red and green lights flickering together, means transmitter power on. Red and yellow lights flickering together, means transmitter power off.

Zero Operation

• Within the tolerance, the “Zero” key clears the weight on all weighing pads.
• When the scale is following, pressing “Zero” will not set it to Zero and will prompt an error:
  1. When the pads are unstable, the instrument will prompt “ERR10” ;
  2. When the pads are in tare mode, the instrument will prompt “ERR11”;
  3. When the pads are loading over zero range, the instrument will prompt “ERR12

Tare Operation

• In normal weighing mode, press “Tare” button to make the load be tare weight; In accumulative weighing mode, press “Tare” button to preset the tare weight and press “Print” button to confirm the tare weight.
• The lights on the keypad is showing. In Tare mode, press “Tare” button to deduct the tare weight from the total weight and show the net weight,LCD will show “net”and”Tare” sign.
• NOTE: Tare mode only show on the total weight display.

Unit Switch

• To press the “Unit” button for switching the unit between “kg’ and “lb”. [F58 0] means can’t convert the unit, [F58 1] means can convert the unit
• Note: when the instrument is in cumulative weighing, it can’t convert the unit.

Checking

• Weighing press “Check” button to show “C 0030” records existing, input “C 0020″ and press ” Print” to check the 20th record. Display shows “REAd-0″_ to show date, time, axle, tare weight and total weight one by one.
• Then “Print 0”, choosing “1” to print this record and back to the Checking display “C 0020”. Press the “Check” Button again to quit and back to weighing mode
  Note: the maximum number of records is 1200; you can delete the records in “the F8” menu.

Switching

• Weighing mode, press “Switch” button to change the display between the axle weight and the total weight, and show the percentage of the axle weight.

Printing

• Manual weighing, press the “Print” button to print when the pad is stable. If you want to print again, you need to go back to zero first

Note:

1. Automatic accumulative weighing mode, press “Print” to print the total weight even if the number of axles doesn’t reach the setting number
2. Press “store” and “print”, and it can print numbers
3. It can set the print function in the “F3” menu.

Calibration And Parameter Setting

Enter Setting

• Press the “Switch” button and the “Print’ button to enter the menu for setting F1-F9.

The Key Functions in Setting

Application Function Parameters Setting

SeriaI Interface Reception Command

• Command 1- 3 continues to send.
• Command 4—5 is manual send, it can send weight to the PC when printing.

Communication Format 1

• (RS232COM serial interface can receive simple ASCII command)
• RS232 parameter: 9600Bit/S Baud rate, 8 digits, no check point, 1 stop.
• S1: weight status, ST standstill, IJS = not standstill, OL overload
• 82: weight mode, GS gross, NT net
• S3: weight of and negative, “+” or “
• S4: Measurement unit, “kg” or “lb”
• Data: weight value, including decimal
• CR: carriage retum
• LR line feed

Communication Format 2

• Compatible for YAOHUA, format 2 [F52 2], baud rate 600 [F51 0].

Communication Format 3

• Compatible for Toledo big display, format 3 [F52 3], baud rate 1200 [F51 1].

Communication Format 4

• The weighing data can be sent to the computer when printing, format 4 [F52 4], baud rate 9600 [F51 4], data format refers to print format.

Communication Format 5

• The weighing data can be sent to the computer when printing, format 5 [F52 5], baud rate 9600 [F51 4]. For example, the upload data format of one scale:

WEIGHING REPORT

• Operator: OO LW: 429.0kg
• Gross: 429.0kg

Communication Format 6—8

• Data format is the same as communication format 1-3. Press the print key to upload the weight manually. Setting [F34 0] to turn off printing function.

Print format

Normal Printing format

Accumulative Printing Format

Maintenance

Regular Error And Solution

ERROR	REASON	SOLUTION
UUUUUU	1.  Overload 2.     Wrong connection with the load cell 3. The load cell has a quality problem.	1.   reduce the weight 2. Check the load cell connection 3. Inspection load cell. Check the input and output
nnnnnnn	1. Calibration is no good 2.  wrong connection 3. The load cell has a quality problem	1. Check scale is resisted or not, foot is kept level or not. 2. Check load cell connection. 3. Checking the load cell
ERR01	LW1 wheel connect timeout	1. Check transmitter is low power or not 2. Distance is too far 3.Restart instrument
ERR02	RW1 wheel connect timeout
ERR03	LW2 wheel connect timeout
ERR04	RW2 wheel connect timeout
ERR05	LW3 wheel connect timeout
ERR06	RW3 wheel connect timeout
ERR10	Zero not on stable weighing conditions	Zero on stable weighing condition
ERR11	Zero and tare at the same time.	Back to G.W, then Zero
ERR12	Out of the zero range	Move the extra load
ERR15	Tare, no on stable weighing condition	Take after stable weighing
ERR16	Tare when no load	To load some, then take
ERR17	Out of the range	Decrease the tare weight
ERR20	Fail in the indicator parameter output	The wireless module is damaged
ERR21	Fail in the indicator parameter input	The wireless module is damaged
ERR22	Fail in the transmitter parameter output	1.    Check the IP address 2.    Module damaged or baud rate wrong
ERR25	The S/N number is wrong when checking the weighing record	Assure the S/N number within the Number of   records

ERR30	The printing format is wrong in the cumulative weighing mode	Printing format setting “2” [F34 = 2]
ERR31	The working mode is wrong in the cumulative weighing mode	Working mode setting “2/4/6” [F31 = 2/4/6]
ERR32	Weighing over the span or display range, or unstable or failure of zero at the cumulative weighing mode.	In case of returning to zero, the weight of the Board shall be loaded for at least 20 days, and the printing shall be accumulated after stabilisation
ERR33	Display Error: Printing with the instrument in the cumulative weighing mode.	Print the total weight after accumulating the weight of the axles.
ERR34	Printing error in normal Weighing mode.	When the weight does not exceed the display range and range, the single board shall be loaded for at least  20d  and printed after stabilisation.
ERR35	The printing format is wrong at normal weighing mode.	Set the printing format to normal printing, [F34 = 1]
ERR36	In automatic weighing mode, normal printing format, pressing “Store” will not prompt	Set the printing format to cumulative printing, [F34 = 2]
ERR40	In non-automastic weighing mode, set the number of axles	Set the  weighing mode to automatic weighing, [F41 = 1]
ERR41	In non-cumulative print format, the number of axles is more than 1.	Set the printing format to cumulative printing, [F34 = 2]
ERR42	The number of axles set is not an integral multiple of the number of weighing axles.	Set the number of axles as an integral multiple of the number of weighing axles. [F42 = x], X is the integral multiple of the number of weighing axles

Packing List

SIN	ITEM	NAME	UNIT	QTY	PACKING
1	Weighing instrument		PCS	1
2	Transmitter equipment		PCS	4
3	Plastic bag		PCS	1
4	Accessories bag		PCS	1
5	Adapter	DC9V	PCS	1
6	Charger	DC4.2V	PCS	1
7	USER MANUAL		PCS	1
8	RS232	M16-3B / DB9	PCS	1
9	Certificate		PCS	1
10	Packing list		PCS	1

Daily Maintain

1. Protect the instrument from strong sunlight to prolong its life.
2. Good connection between load cell and transmitter. Far from away from a strong electric field, a magnetic field.
3. Power off the instrument when lightning.
4. Power off the instrument first before plugging and unplugging.

CUSTOMER SERVICE

• info@selletonscales.com
• 8447355386
• wmou.selletonscales.com

Documents / Resources

SellEton SL-928-W Portable Weight Scale Pads Plus Indicator [pdf] User Manual SL-9S2L8-9-W28, WSL, 7S5L6-715-R61F, SL-928-W Portable Weight Scale Pads Plus Indicator, Portable Weight Scale Pads Plus Indicator, Weight Scale Pads Plus Indicator, Scale Pads Plus Indicator, Pads Plus Indicator, Indicator

References

• User Manual