Industrial Scales | Manufacturer of Industrial Weighing Scale — SellEton Scales
User Manual for sellEton models including: SL-7516-E Accurate Scales With Better, SL-7516-E, Accurate Scales With Better, Scales With Better, Better
Manuals & How To Guides — SellEton Scales
SellEton SL-WB Weigh Bar System | 5000 Lb to 20000 Lb — SellEton Scales
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DocumentDocumentSL-7516 SERIES INDICATOR USER'S MANUAL
(SL-7516-E, SL-7516-C Series)
www.selletonscales.com
TABLE OF CONTENTS
Safety Precautions Preparations and Set Up Features Specifications Power Supply Displays Display and Key Descriptions Operating Instructions Calibration Indicator Parameter Settings Definitions Connectors Communication Mode Troubleshooting Contact Us
1 1 2 3 4 5 6 7-8 9-10 11-13 14 15 16 17 17
SAFETY PRECAUTIONS
For safe operation of the weighing indicator, please follow these instructions: Calibration inspection and maintenance of the indicator are prohibited by non-pro-
fessional staff Please ensure that the indicator rests on a stable surface The indicator is a piece of static sensitive equipment; Please cut off power during
electrical connections Touching the internal components by hand is prohibited DO NOT exceed the rated load limit of the unit DO NOT step on the unit DO NOT jump on the scale DO NOT use this product if any of the components are cracked DO NOT use for purposes other then weight taking To avoid damaging the battery do not keep charger plugged in once battery is fully
charged Make sure the weight is not over the Max capacity as it could damage the load cell
inside Material that has a static electric charge could influence the weighing. Discharge
the static electricity of the samples, if possible. Another solution to the problem is to wipe both sides of the pan and the top of the case with an anti-static agent
Please take anti-static prevention measures Any accumulated charge on the body of the human operator should be discharged first before opening the protective container with ESDS devices inside. The discharge can be accomplished by: Putting a hand on a grounded surface or, ideally, by wearing a grounded Anti-static
Wrist Strap and an Anti-static Mat
PREPARATION & SET UP
Plug into a wall outlet to avoid interference with other wirings Turn on the balance while there is no load We suggest to warm-up the balance by powering on 5 minutes before use for
accurate weighing Calibration may be required before weighing when the balance is initially installed
or moved from a location
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FEATURES
Main Functions
Multiple weighing units: (kg/lb) General weighing: Gross/Tare/Zero Multiple Hold functions (animal weighing, peak-hold, manual-hold, auto-hold) Overload / Underload indication Print option Low battery reminder Automatic Power off (power saving mode)
Technical Parameters
Accuracy class: 3000 e Stimulating voltage: +3.3 VDC A/D converting speed 10 SPS Load signal range: 0~12.8mV Load capacity: can connect 4 pcs 350 load cell at most Interval: 1/2/5/10/20/50 Display: 6 digits LED/LCD, word height 20.3mm Interface: RS232C Baud rate: 1200/2400/4800/9600 Battery: 4V/4Ah rechargeable battery; 110/220VAC AC power: AC 100-250V (use only the included 9V adapter supplied) Operation temperature: -10 °C ~ +40 °C Operation humidity: 90%RH Storage temperature: -40 °C ~ +70 °C (32-104°F)
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SPECIFICATIONS
INDICATOR MEASUREMENTS
8.7 in.
3.2 in.
6 in.
6 in.
power supply
load cell port rs232 port battery box
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POWER SUPPLY
AC Adapter
The indicator is charged by an ac adapter, plug the adapter directly into the "DC" pin located at the back of the indicator. We recommend to plug into a wall outlet to avoid interference with other wirings. A 110 to 220V AC adapter should be provided with your indicator. Please use only the AC adapter provided to prevent damage to your indicator.
Battery
SL-7516 comes with a rechargeable battery, please charge the internal battery fully before first time use for 10-12 hours to prevent low voltage resulted from self leakage of batter. Once charged the battery should last for 45 hours. To keep the battery in best condition, fully discharge the battery every month by leaving the indicator on until the indicator powers off, and then recharge fully. If the battery is not going to be used for a long period of time it is recommended to remove it to avoid leakage.
On SL-7516-E When the Battery is low the battery indicator light flashes red During charging the red light will stay lit The light will turn green once fully charged
ON SL-7516-C
symbol will indicate battery's charge
symbol indicates that the battery needs to be charged
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SL-7516-E (LED) SL-7516-C (LCD)
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DISPLAY AND KEY DESCRIPTION
ON/OFF Powers the Indicator On or Off if held for 2 seconds
HOLD 1. Peak hold - Grabs the highest weight (for tension and pulling force)
2. Data hold - Holds the current weight value (ex. for use with weighing
moving animals)
UNITS Shifts between weighing units (kg/lb)
TARE 1. Zero's the scale. Used when using a container to hold objects
2. Clears the tare to see the gross weight
ZERO Zero's the scale
SET
Works with the "On/Off" button to enter and exit calibration
The scale is at zero
Gross Net Tared Hold lb kg Battery Over Accept Under
The scale is stable
Shows you are in Gross weight mode (includes tare); default mode Shows you are in Net weight mode (without tare) Shows you are in Counting mode Shows you are in Hold mode The weight is shown in pounds The weight is shown in kilograms Flashes red = low battery, Solid red = charging, Green = fully charged Flashes when weight is higher than set alarm parameter Flashes when weight is within the set alarm parameters Flashes when weight is lower than set alarm parameter Power
Arrow keys
Enter/Return
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OPERATING INSTRUCTIONS
Power On
Turn on the power by pressing the power button for 2 seconds. Once on, the scale will flash the voltage and then begin to auto-check and count down from 0-9 sequentially before entering the weighing mode Note: Anything on the scale before powering on will automatically be tared out.
Zeroing
The zero function is used only when the scale is empty and is not at gross zero due
to material build up Pressing the ZERO key will reset your scale to 0 Depending on what your manual zero range parameter is set to, you can zero out
any number within your set selection, after that you will receive an error and will
need to tare out the weight
Unit Selection
To switch between measuring units (kg, lb, oz) press the UNITS key
Tare Function
The Tare function is used when you only wish to see the current change in weight,
not the entire amount of weight that is on the scale When the indicator is in gross mode (gross light is shown) pressing the TARE key
will Tare the current weight on the scale and enter the net mode (net light shown) For example if you are using a container add the container to the scale, press tare
and the display will show the tare symbol
and reset back to 0
Add your item to the scale to weigh without the weight of the container
To exit Tare mode press the TARE key again to enter gross mode and you will see
the total weight of the container and the item
Note: If you remove the container the scale will show the minus weight of the container
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Hold
In the parameter settings you can choose one of these 5 hold options
1. Peak Hold: Grabs the highest weight (for materials testing, ie. tension and pulling force) Press the HOLD key then add weight to the scale The indicator will show the highest weight it recorded and hold it on the screen until
a higher weight is placed on the scale
2. Manual Hold: Grabs the current weight and holds it so it will not change/fluctuate While weighing, press HOLD and the indicator will hold the current weight on the
screen until HOLD is pressed again
3. Auto Hold: If the weight on the scale is above 20d and is stable, the indicator will hold that weight on the screen for 3 seconds then go back to general weighing Pressing the hold key is unnecessary, holding is done automatically when the scale
is stable
4. Average Hold: Used for animal weighing, the indicator will display the average weight sampled from 3 or 5 seconds (Set in the C12 Parameter) Add animal to scale and press HOLD
Indicator screen will show "LOC" for 3 or 5 seconds, then display the average
weight from those 3 seconds Press HOLD again to exit holding mode
5. Auto Average Hold: Used for animal weighing, the indicator will display the average weight sampled from 3 or 5 seconds without the need to press the HOLD key. If the weight on the scale is above 20d and is stable, the indicator will start grabbing the average weight sampled from 3 seconds.
Begin loading animal to scale, after 5 seconds the Indicator screen will show "LOC"
for 3 seconds It will then display the average weight from those 3 seconds for 3 seconds and then
repeat the process
Print
If the indicator is connected to a printer and the communication mode is set to print mode (C18 =2) and the weight on the scale is stable press and hold the SET key to
print the current weight
Print out example:
N.W.: T.W.: G.W.: NO.
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25.6lb 10.3lb 35.9lb
01
Net weight Tare weight Gross weight Print out number
CALIBRATION PROCEDURE
1. Turn on the scale by holding ON/OFF for 2 seconds. 2. Press ON/OFF and SET together to access the setup menu.
3. If done correctly, the display should now show C01. 4. Press SET to access the C1 channel. The display should show [C1 #]. 5. Press ZERO to change the value of C1 to [C1 2]. (The value of 2 sets the scale
6. up in pounds.)
7. Press SET to set the value. The display will now show C02. 8. Press SET to access the C2 channel. The display should show [C2 #].
9. Press ZERO to change the setting to the decimal places desired. (The C2 channel is used to adjust the decimal point on the scale. A value of 1 means there is one digit behind the decimal point.)
10. Press SET to set the value. The display will now show C03. 11. Press SET to access the C3 channel. The display should show [C3 #].
12. Press ZERO to cycle through the values until the desired graduation appears. (The C3 channel adjusts the divisions on the scale. A value of 1 selected and C2 set to 1, the scale will read in 0.1 lb. increments.)
13. Press SET to set the value. The display will now show C04.
14. Press SET to access the C4 channel. The display will show [######]. 15. Enter in the maximum capacity you want to use for this scale by using HOLD and
UNITS to move the cursor left and right, and TARE and ZERO to move the values down and up. (The C4 channel is used to enter in the max capacity of the scale; Make sure this doesn't exceed the max capacity of the scale; Max capacity divided by the increment set in C02 and C03 above cannot exceed 5000)
16. Press SET to set the value. The display will now show C05. 17. Press SET to access the C5 channel. The display should show [C5 0].
18. The C5 channel calibrates zero on the scale. Make sure the scale is empty. 19. Press ZERO to change the value to 1. 20. Press SET . The display will count down from 10-1 while the scale is
calibrating zero. When the display shows 0 the zero calibration is complete.
21. Press SET to continue. The display will now show C06. 22. Press SET to access the C06 channel. The display will show [C6 0].
23. The C6 channel is used to calibrate the scale with a known weight. Press ZERO to
set the value of C6 to [C6 1]. Press SET . The display will flash SPAN, and
then show [######]. 24. Enter the calibration weight value you will use (at least 10% of max capacity you set
in C04 by using HOLD and UNITS to move the cursor left and right, and TARE and ZERO move the values down and up. 25. Place the calibration weight you have on the empty scale and press SET . 26. The scale will count down from 10 to 0. Once 0 has been reached, the display will
show CALEnd.
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CALIBRATION cont.
27. Press SET to continue. The display will now show C07.
28. Press ON/OFF to save and exit the setup menu. 29. The scale has now been calibrated. The display will show the value of the calibration
weight on the scale. 30. If the scale does not show the value of the calibration weight, check that the feet on
the platform are not screwed in too tightly, and verify that the platform is level. 31. Unload the scale; the display should read 000000. 32. If the scale does not display 00000, check that the feet on the platform are not
screwed in too tightly, and verify that the platform is level.
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INDICATOR PARAMETER SETTINGS
The parameter settings menu has a calibration section (C01 to C06 explained above) and a
parameter settings section (C07 and up).
To access the calibration section the seal switch (located at one corner of the PCB) must be
OFF. This will allow access to all C01 and up settings. If the seal switch is ON, then only C08 and up can be accessed by the user. If you break the official seal by opening the back of the indicator to access the seal switch, you may need to have the indicator recertified. Be sure to adjust the seal switch back to the original setting after calibration/configuration has been performed.
To enter calibration/parameter settings, follow the procedure below:
1. Press and hold the ON/OFF and SET key at the same time for 2 seconds
2. Navigate through the settings (C01 to C45) as shown in the table 4 below by using the arrow
keys and enter key as labeled under each indicator button
3. Press the SET
key to enter/edit the parameter setting
4. Press the ON/OFF key to save and exit settings at any time
Table 1. Calibration Parameter Settings
Function
Parameter Settings/Options
Weighing Unit Decimal Setting
C01 C02
Division/
Graduation Setting
(readability of the least significant digit)
C03
Maximum Capacity
C04
1 = kg 2 = lb
0 = no decimal 1 = #.# 2 = #.## 3 = #.### 4 = #.####
options: 1/2/4/10/20/50 Example with no decimal places (ie C02=0) 1 = 1 lb 2 = 2 lb 5 = 5 lb 10 = 10 lb 20 = 20 lb 50 = 50 lb
set max capacity ex. 100kg = [0100.00]
Zero Calibration Calibration
C05 C06
0 = zero calibration 1 = set the zero calibration Note: Before calibrating please ensure scale is empty and the stable light is on. When calibrating the Indicator will count down from 10 to 0
0 = calibration not needed 1 = ready to calibrate with calibration weight Note: When calibrating the display will flash SPAn, telling you to input the value of the calibration weight you will be using. Once set the scale will count down from 10 to 0 and display CalEnd, and the calibration will be complete.
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Table 2. Indicator Parameter Settings
Function Restore Default Settings Warning Tone Power Off Automatically Power Saving Mode
Hold Function
Hold Time
Upper Limit Alarm Lower Limit Alarm Inner Code Display Communication Setting
Baud Rate
Manual Zero Range
Parameter Settings/Options
C07 C08 C09 C10
C11
C12 C13
0 = do not restore 1 = restore to default settings
0 = turn off warning tone 1 = turn on warning tone
0 = turn off auto power off 10 = power off automatically if no change within 10 minutes 30 = power off automatically if no change within 30 minutes 60 = power off automatically if no change within 60 minutes
LED Version SL-7516-E: 0 = turn off power saving setting 3 = turn off display if no change within 3 minutes 5 = turn off display if no change within 5 minutes LCD Version SL-7516-C: 0 = turn off the backlight 1 = backlight only when the weight changes or keyboard is pressed 2 = constant backlight
0 = turn off hold function 1 = Peak hold - Grabs the highest weight 2 = Manual hold - Grabs the current weight 3 = Auto hold - Automatically holds data when stable 4 = Average hold - for animal weighing, averages the weight from a
sample of 3 or 5 seconds (Set in parameter C12) 5 = Auto Average hold - Average hold without the need to press the
hold key
If you chose C11=4 this setting allows you to set how many seconds it samples to obtain an average weight 3 = 3 seconds 5 = 5 seconds
Set upper limit within the max. capacity
C14 Set lower limit within the max. capacity
C15 Check the inner code (raw data)
C18 C19 C20
Set the serial interface data output method: 0 = Turn off serial interface data output 1 = Continuous sending mode, connect remote display 2 = Print mode, connect printer 3 = n/a 4 = PC continuous sending mode, connect computer
0=1200 (for remote display) 1=2400 2=4800 3=9600
0 = turn off manually zero setting 1 = ±1% max capacity 2 = ±2% max capacity 4 = ±4% max capacity 10 = ±10% max capacity 20 = ±20% max capacity 100 = ±100% max capacity
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Function Initial Zero Range
Zero Tracking
Zero Tracking Time
Overload Range Negative Display
Standstill Time Standstill Range
Digital Filter (for filtering moving weight, such as animals) Noise Filter
Print Time and Date
Gravity of Calibration Location Gravity of Destination Version No. Input Signal
Parameter Settings/Options
C21 C22
C23 C24
0 = no initial zero setting 1 = ±1% max capacity 2 = ±2% max capacity 5 = ±5% max capacity 10 = ±10% max capacity 20 = ±20% max capacity
0= turn off zero tracking
0.5 = ±0.5d
d = division
1.0 = ±1.0d
2.0 = ±2.0d
3.0 = ±3.0d
4.0 = ±4.0d
5.0 = ±5.0d
Note: the zero tracking range can not be bigger than manual zero
range
0 = turn off zero tracking time
1 = 1 second
2 = 2 seconds
3 = 3 seconds
00 = turn off overload range 01-99d = overload range setting
d = division
C25
C26 C27 C28 C29 C30 C36
0 = -9d 10 = -10% max. capacity 20 = -20% max. capacity 50 = -50% max. capacity 100 = -100% max. capacity 0 = quick 1 = medium 2 = slow
1 = ±1d 2 = ±2d 5 = ±5d 10 = ±10d 0 = turn off dynamic filter 1 = Low dynamic filter 3 = Medium dynamic filter 5 = High dynamic filter 0 = turn off noise filter 1 = Low 2 = Medium 3 = High
0 = yy.mm.dd 1 = mm.dd.yy 2 = dd.mm.yy 3 = yy.mm.dd
9.7000 - 9.9999
d= division
C37 9.7000 - 9.9999
C38
C39
0 = Input Signal Direction Normal 1 = Input Signal Direction Reversed
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HELPFUL DEFINITIONS
Division: The amount of increments a scale offers. How accurate the scale can be
Capacity: the maximum amount the scale can contain
Initial Zero Range: The percentage of weight allowed on the scale when indicator is powered on that will automatically zero. example: If initial zero range is set to 10% of the max. capacity and your max. capacity is 100lbs, you can place up to 10lbs of weight on the scale and when the indicator is powered on, it will automatically zero out the weight.
Manual Zero Range: The percentage of weight allowed on the scale where the indicator will let you manually zero (anything above this percent will be tared)
Zero Tracking Range: A subset to the manual zero range; if the weight on the scale is not stable, the zero tracking range still allows you to zero within a set division of the scale
Zero Tracking Time: A subset to the zero tracking range, it is the time allowed for the scale to fall within the zero tracking range tolerance and still qualify to be zero'd
Overload Range: Weight allowance that is out of the set calibrated range. Adds a tolerance to the calibrated max. capacity without having to recalibrate. example: If your scale has a max. capacity of 1000lbs with a division of 1 and you set the overload range to 60, you can add 1060lbs of weight to the scale without it displaying an error code
Negative Display: How far you can go in the negative direction before displaying an error code
Standstill Time: How fast the scale will stabilize
Standstill Range: How much the scale can fluctuate before being determined stable
Digital Filter: For filtering moving weight, such as animals, It changes how sensitive the scale is to variations in movement.
Noise Filter: A filter for how susceptible the scale is to general variations
Baud Rate: The rate at which information is transferred in a communication channel. example: In the serial port context, "9600 baud" means that the serial port is capable of transferring a maximum of 9600 bits per second.
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CONNECTORS
Connecting load cells to the indicator
The indicator can connect with 4 pcs load cells of 350 at most 4 wire or 6 wire load cell connections are both okay Please contact us directly if you have other special needs for your application
Quick Disconnect as shown below:
QUICK DISCONNECT CONNECTION DIAGRAM DB9 SERIAL CONNECTOR PINOUT
DB9 Pin Description
DB9 Pin 2 3 5
Definition TXT RXD GND
Function Transmit Data Receive Data Ground Interface
15
COMMUNICATION MODE
Continuous sending mode for PC: the indicator continuously sends the data to the RS232 port
Communication Format is done using ASCII as shown below:
,
,
CR LF
{ { {
S 1
S1: S2: S3: Data: S4: CR: LF:
S 2
S 3
Data
S 4
weight status, ST=standstill, US=not standstill, OL=overload weight mode, GS=gross mode, NT=net mode weight of positive and negative, "+" or "-" weight value, including decimal point "kg" or "lb" carriage return line feed
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TROUBLESHOOTING
Error Codes
Error
UUUUUU nnnnnnn
ERR1 ERR2
Reason 1. Overload 2. Wrong connection with load cell 3. Load cell has quality problem 1. Calibration is no good 2. Wrong connection with load cell 3. Load cell has quality problem During calibration, weight is not used or the weight is above the max. capacity During calibration, the weight is below the minimum required weight
ERR3
During calibration, the input signal is negative
ERR4 ERR5
During calibration signal is unstable EEPROM Error
Solution 1. Reduce the weight 2. Check load cell connection 3. Inspect load cell; Check the input/output 1. Make sure scale is level 2. Check load cell connection 3. Check load cell input and output resistance Use correct weight within the defined range
The calibration weight minimum is 10% of the max. capacity set in C04. Recommended to use 60%-80% of max. capacity if possible 1. Check all wire connections 2. Check load cell 3. Recalibrate 4. PCB replacement needed if steps 1-3 fail After the platform is stable, start calibration
Change PCB
CONTACT US
Please e-mail info@selletonscales.com for any sales related questions or call 844-735-5386
Don't forget to visit our website at: www.selletonscales.com
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