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Summary of Contents for SellEton Scales SL-905
- Page 1 SL-905 INDICATOR USER’S MANUAL www.selletonscales.com...
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Page 2: Table Of Contents
TABLE OF CONTENTS Safety Precautions Preparations and Set Up Features Specifications Power Supply Displays Display and Key Descriptions Operating Instructions Calibration Indicator Parameter Settings 12-16 Helpful Definitions Connectors 18-19 RS232 Serial Output Format 20-23 4-20 mA Analog Output Relay Output Troubleshooting Q&A Contact Us... -
Page 3: Safety Precautions
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 ●... -
Page 4: Features
FEATURES Suitable for Bench scales, floor scales and truck scales, this indicator works with 32bit CPU and 24bit high precision ADC. It is made with a Stainless Steel housing. Excellent performance make it proper for varied interface function. Waterproof connector and cable connection fixed inside. -
Page 5: Specifications
SPECIFICATIONS FIGURE 1: INDICATOR MEASUREMENTS 10.25” 3.25” SL-905 Battery Gross Hold Total zero Hold Unit Check Print Total Count Tare Zero ON/OFF 11.25” 4” 3.14” 5.11”... -
Page 6: Power Supply
● 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 SL-905 (LED) Keypad and Display MODEL SL-905 CLASS III... -
Page 7: Display And Key Descriptions
DISPLAY AND KEY DESCRIPTION Holds the weight on the scale Depending on the parameter setting HOLD Shifts between weighing units UNIT Checking the record by number CHECK Print the weighing data PRINT In gross mode: get the tare weight TOTAL In net mode: clear the tare, get the Gross Delete the previous weighing data and the saved record Use the scale to count product based on a sample weight... -
Page 8: Operating Instructions
OPERATING INSTRUCTIONS Power On ● Turn on the power by pressing the ON/OFF 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. - Page 9 Accumulation ● The accumulated function is used to add multiple weights and total them together ● You can add up to 999 different weights together ● In weighing mode load the first weight, once stable press the TOTAL key to enter the accumulated mode.
- Page 10 Counting Function ● The counting function is used to count a high volume of identical parts. You can do this by setting a sample and then either adding to the sample or taking away from the sample to count the number of objects on the scale COUNT ●...
- Page 11 Recipes Recipes allows you to store formulas for different products you may continuously be weighing, and creates a quick easy way to streamline your weighing. For example: If you are selling 2 lb bags of cherries, you would create a recipe by set- ting a tolerance using upper and lower limits.
- Page 12 CALIBRATION PROCEDURE Turn on the scale by holding ON/OFF Press SET and ESC together to access the setup menu. If done correctly, the display should now show [ C01 01 ] Press to access the C1 channel. The display should show On they keypad enter which unit you want to calibrate in (1 = kg, 2 = lb).
- Page 13 CALIBRATION CONT. 26. The scale will count down from 10 to 0. Once 0 has been reached, the display will show CALEnd 27. Press to continue. The display will now show 28. Press ESC to save and exit the setup menu. 29.
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Page 14: Calibration
INDICATOR PARAMETER SETTINGS The parameter settings menu has a calibration section (C01 to C07 explained above) and a parameter settings section (C08 and up). To access the calibration section the seal switch (located at one corner of the PCB) must be OFF. - Page 15 Function Parameter Settings/Options Hold Function 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 seconds 5 = Auto Average hold - Average hold without the need to press the hold key...
- Page 16 Function Parameter Settings/Options Zero Tracking 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 Zero Tracking Time 0 = turn off zero tracking time...
- Page 17 Function Parameter Settings/Options Odd-Even Check 0 = 8n 1 = 70 2 = 7e Interval 0 = no limit 1 = 100ms 2 = 200ms 3 = 500ms 4 = 1s 5 = stable transmit Checksum 0 = no 1 = yes Simple Command 0 = no Support...
- Page 18 Table 3. Default Parameter Settings Function Parameter Default Weighing Unit Decimal Setting Graduation Setting Maximum Capacity 10000 Zero Calibration Calibration Restore Default Hold Function Unit Switch Power Saving Mode Automatic Power Off Alarm Setting Upper Limit Alarm 000000 Lower Limit Alarm 000000 Inner Code Display 999999...
- Page 19 BATTERY INSTALLATION The indicator works with AC power, please note the voltage is proper and check if the AC power side is earthing. Voltage transformer and stable circuit is build in the indiciator please dont open it with- out professional instruction. Stable Circuit connection J1 Inditial level for AC power input and voltage transfomer J2 Second level for voltage transformer...
- Page 20 SCALE INSTALLATION OP-905 maxi. Supports 12 x 350ohm load cells. (4 wires or 6 wires load cell) The con- nection between load cells and indicator is by terminal block. the connection diagram as below. 4 Wire load cell connection EXC+, EXC-, SIG+, SIG- (load cell) to EXC+, EXC-, SIG+, SIG- (indicator) EXC+ and SEN+ to be short circuit EXC- and SEN+ to be short circuit...
- Page 21 6 Wire load cell connection EXC+,SEN+, SEN-, EXC-,SIG+,SIG- (load cell) to EXC+,SEN+, SEN-, EXC-,SIG+,SIG- (indicator) Communication Interference OP-905 owns 3pcs RS232 , 1 pc RS485 and 1 pc USB-Com. 1 RS232 is electrical isolation with load cell and can be set in C18 parameter, DEFAULT off.
- Page 22 USB-COM as below RS485 as below. Definition Interface Function RS232-1 recieve RS232-1 transmit RS232-1 Continues Tranmit Earthing RS232-1 recieve RS232-1 transmit RS232-2 Printing Earthing RS232-1 recieve C18: RS232-3 Commanding mode RS232-1 transmit Electrical Printing mode Isolation Continues transmit mode Earthing RS485 output A RS485 Commanding mode...
- Page 23 OUTPUT FORMAT Computer Continuous Sending Mode (Format 1) CR LF Data weight status, ST=standstill, US=not standstill, OL=overload weight mode, GS=gross mode, NT=net mode weight of positive and negative, “+” or “-” Data: weight value, including decimal point “kg” or “lb” carriage return line feed...
- Page 24 RS232 SERIAL OUTPUT FORMAT Follow the pin out of Table 5 below to connect the indicator the RS-232 Serial device Table 5. DB9 Pin Description DB9 Pin Definition Function Transmit Data Receive Data Ground Interface The serial output format depends on the settings for parameter C18. The serial output consists of a string of ASCII characters.
- Page 25 Compatible for Yaohua A9 (Format 3) ASCII code to show the data. The transmission data is the current weight. Each one is by 12 groups of data. X bit Note 02(XON) start + or - symbol High bit of weighing data Weighing data: Weighing data: Low bit of weighing data...
- Page 26 Commanding Format Standard comand Use ASCII code to response Transmit: Format ADDRESS COMMAND VERIFY Content A-Z / 20 A-F,T,Z No address, use space (20hex), 6 bits in total. Responsing: Format ADDRESS COMMAND REPLY VERIFY Content A-Z / 20 Content A-Z / 20 A,T,Z,N,X W: symbol+weight+decimal position Back 6/14 bit...
- Page 27 PRINTING The following are the printing formats on an optima ticket printer: Standard Printing mode S/N: Date: 05/01/2017 Time: 11:30:52 25.6lb Tare 10.3lb Gross 35.9lb Accumulation Printing mode Date: 05/01/2017 Time: 11:30:52 N001: 25.6lb N002: 10.3lb Total 35.9lb Count Counting Printing mode Date: 05/01/2017 Time:...
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Page 28: Helpful Definitions
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. -
Page 29: Troubleshooting
TROUBLESHOOTING Error Codes Error Reason Solution 1. Overload 1. Reduce the weight 2. Wrong connection with load cell 2. Check load cell connection UUUUUU 3. Load cell has quality problem 3. Inspect load cell; Check the input/output 4. See Q&A section 1. -
Page 30: Q&A
Q&A The scale does not turn on Make sure the power cord is plugged in, and that there is power. One easy way to test this is by connecting another appliance to the same outlet and see if it’s operational The reading goes negative when a load is applied Try interchanging the Sig+ and Sig- wiring connected to the load cell and/or junction box (if one is used) -
Page 31: Contact Us
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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