Brecknell SBI-240 Service Manual
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Brecknell SBI-240 Service Manual

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SBI-240 Weighing Indicator
Service Manual
AWT35-501
Issue AA

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Questions and answers

Patrice Bourget
January 16, 2025

Hi, I'm reading over the USB to serial port and I thought it was working fine, but I realized some numbers are not showing properly. Here is the string that I get: "?00?.?5?B?00". That was for 1.25 lb. The issue is that the numbers 1 and 2 show as question marks. I went closer to read the bytes and the 1 is 177 and the 2 is 178, which is not right by the ascii table, while the 5 is fine (53) and so are the leading zeroes (48 each). I checked all the settings for baud rate 9600, parity none, databits 8 and stopbits 1. I tried a lot of encodings: ascii, UTF8, UTF16, UTF32, unicode big and little endian to no avail. Always weird stuff. Could you please assist?

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1 comments:
Mr. Anderson
February 3, 2025

The Brecknell SBI-240 USB to serial port could display incorrect characters for the numbers 1 and 2 due to an incorrect baud rate or byte format configuration. Ensure that the baud rate and byte format settings match between the scale and the connected device. These settings can be adjusted using the USER-COM1/2-BAUD.RT and USER-COM1/2-BYT.FMT options.

This answer is automatically generated

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Summary of Contents for Brecknell SBI-240

  • Page 1 SBI-240 Weighing Indicator Service Manual AWT35-501 Issue AA...
  • Page 2 Brecknell is part of Avery Weigh-Tronix. Avery Weigh-Tronix is a trademark of the Illinois Tool Works group of companies whose ultimate parent company is Illinois Tool Works Inc (“Illinois Tool Works”). Copyright © 201 Illinois Tool Works. All rights reserved.

  • Page 3: Table Of Contents

    Toggle HOLD ......................30 Average HOLD ......................30 Auto HOLD (default setting) ..................30 Chapter 4 Setup Mode ..........................31 Entering the Setup Menu ....................31 Navigating the Setup Menu ....................31 Setup Menu Parameters ....................32 SBI-240 Service Manual...
  • Page 4 Serial Port 1/2 (COM1/2) Transmitting Test ..............68 Keyboard and Buzzer Test ....................69 Chapter 8 Troubleshooting ........................70 Display Characters ......................70 Display Symbols ......................71 Error Messages and Troubleshooting ................72 Replacement Parts ......................73 SBI-240 Service Manual...
  • Page 5 SBI-240 Service Manual...

  • Page 6: Chapter 1 General Information And Warnings

    SPECIFIC PRACTICES OR PROCEDURES MAY RESULT IN ELECTROCUTION, ARC BURNS, EXPLOSIONS OR OTHER HAZARDS THAT MAY CAUSE INJURY OR DEATH. NOTE: This is a Note symbol. Notes give additional and important information, hints and tips that help you to use your product. SBI-240 Service Manual...

  • Page 8: Routine Maintenance

    Use harsh abrasives, solvents, scouring cleaners or a small amount of mild detergent alkaline cleaning solutions Spray the cloth when using a proprietary Spray any liquid directly on to the display window cleaning fluid 1.6 CE Certification SBI-240 Service Manual...

  • Page 11: Chapter 2 Installation

    DANGER: RISK OF ELECTRICAL SHOCK. BE SURE TO UPLUG THE INDICATOR BEFORE REMOVING THE COVER OR OPENING THE UNIT. REFER TO QUALIFIED SERVICE PERSONNEL FOR SERVICE. 2.1 Contents 9V 600mA adapter Indicator UK, EU,US adapter plugs Service Manual SBI-240 Service Manual...

  • Page 12: Connectors And Jumpers

    + excitation power output 5±0.3 VDC (≤0.12A) + sense power input 5±0.3 VDC - excitation power ground 0 VDC - sense power input ≤0.5 VDC + signal signal input 2.5±0.3 VDC - signal signal input 2.5±0.3 VDC shield SBI-240 Service Manual...
  • Page 13 Electrical Level RS485 signal A (if RS485 installed) Input/output 0-5VDC RS232 Transmit on UART0 Output -12 to +12VDC RS232 Receive on UART0 Input -12 to +12VDC Power ground 0VDC RS485 signal B (if RS485 installed) Input/output 0-5VDC SBI-240 Service Manual...
  • Page 14 Table 2.6 KCAK Jumper Set Connected Pins Function Calibration enabled Calibration disabled Table 2.7 JP1 Jumper Connected Pins Function Pins 1-2 are shorted for 4 wire load cell Pins 2-3 are shorted for 6 wire load cell SBI-240 Service Manual...

  • Page 15: Chapter 3 Scale Operation

    Scale is in dynamic weighing mode. Hold type is PEAK-HOLD. Indicates the current unit of measure is lb. Indicates the current unit of measure is oz. Indicates the current unit of measure is kg. Measure unit is% (in percentage weighing mode). SBI-240 Service Manual...

  • Page 16: Keys

    Sends output data via the serial port Press for more than 3 seconds Selects mode: Weighing, Counting, or Percent Input data mode Increases the digit in the flashing data entry position by one Menu selection mode Returns to last item of current sub-menu SBI-240 Service Manual...
  • Page 17 Press for more than 3 seconds Power off Input data mode Ignore current operation Menu selection mode Exit from current working mode NOTE: To access the second function of the key, press and hold the key for more than 3 seconds. SBI-240 Service Manual...

  • Page 18: Turn The Indicator On

    ON/OFF key to zero the reading. Zero range: ±2% * full Capacity. The zero function is unavailable when the displayed reading is out of the zero range. The indicator will show one of the following error messages: 0----- Over zero range SBI-240 Service Manual...

  • Page 19: Setting A Tare Weight

    Pre-determined tare will be lost after the scale is turned off. 3.5.6 Change Weight Unit Press the [UNIT/DATA] key to select kg, lb, oz, lb:oz, g. Note: under some conditions oz, lb:oz, g are not available. Please refer the following tables. SBI-240 Service Manual...
  • Page 20 5 oz Not available 2 lb 1 kg Not available 2 lb Not available Not available 20 lb 10 kg Not available 20 lb Not available Not available 0.0005 lb 0.0002 kg 0.2g 0.0005 lb 0.01oz Not available SBI-240 Service Manual...

  • Page 21: Output Data (Print To A Computer Or Printer)

    (the default value is 000000). The LO annunciator will be lit on the display. Use the keys to enter the lower limit of the range. Press the TARE/PRESET key to confirm. Press ZERO/ON/OFF key to exit and go back to the normal weighing mode. SBI-240 Service Manual...

  • Page 22: Accumulation Mode

    Press and release the ACC/TOTAL key to add the new value. NOTE: To avoid duplicating a value for a same load, the accumulation function requires the original load to be removed before a new value can be accumulated. SBI-240 Service Manual...

  • Page 23: Count Mode

    Press the UNIT/DATA key. When InP.PWt is displayed, press the TARE/PRESET key to access the "Input Piece Weight" mode. NOTE: At any time you can press ZERO/ON/OFF to exit "Input Piece Weight" and return to counting mode. SBI-240 Service Manual...

  • Page 24: Enter The Piece Weight With A Sample Of A Known Quantity

    If the scale has stabilized, INP.PCS will be displayed quickly and the previously entered piece weight will be displayed (the default value is 000000, and the position of decimal point is determined by CONFIG- FUNC-PERCEN setting). Use the keys to input the sample quantity. SBI-240 Service Manual...

  • Page 25: Check Counts (Count Compare) In Counting Mode

    Press the TARE/PRESET key to confirm. NOTE: If the upper limit is 0, or if it is less than or equal to the lower limit, check weighing mode will automatically be exited. SBI-240 Service Manual...

  • Page 26: Percent Weighing Mode

    Press the TARE/PRESET key to continue. Before entering the weight value, use key to select the percentage from 1%, 2%, 5%, 10%, 20%, 50% and 100%, corresponding to the weight that will be entered in the following steps. SBI-240 Service Manual...

  • Page 27: Using Weight Samples When Percentage Is Known

    Press the ZERO/ON/OFF key to exit and return to percent weighing mode. After INP.PCT is displayed quickly, the previously entered percent will be displayed. (the default value is 000000, and the position of decimal point is determined by CONFIG-FUNC-PERCEN setting, SBI-240 Service Manual...

  • Page 28: Check Percent (Percentage Compare)

    NOTE: If the high number is 0 or is equal or less than low number, the comparison will be disabled. After a reasonable limitation is set and compare is active, one of annunciators HI, OK, LO will be displayed, and the beeper will sound according to the setting in USER-BEEP. SBI-240 Service Manual...

  • Page 29: Bmi Working Mode

    DATA key. The BMI and weight unit will be displayed at same time. In this mode, when current net weight is less than NLD.RNG, the indicator will go to the display weight number if CONFIG-FUNC-ACCUMU= No; or the indicator will return to original working mode if CONFIG-FUNC-ACCUMU= Yes. SBI-240 Service Manual...

  • Page 30: Weight Fine-Tune

    A number will be displayed (for example it displayed 1230.0 lb but the original number is 1234.5). Press the TARE/PRESET and ZERO/ON/OFF at the same time until first digit flashes, which means indicator has entered into "weight fine-tune" mode. SBI-240 Service Manual...

  • Page 31: Hold Function

    When USER-HOLD-HLD.MOD is set to PS.PEAK, the hold mode is positive peak hold mode. When the scale first enters this working mode, it will display the largest positive number that is from the time of zero-point set. SBI-240 Service Manual...

  • Page 32: Negative Peak Hold

    The scale will exit HOLD mode according to the setting of USER-HOLD-HLD.TIM. If the time of scale variation is over USER-OTHER-NLD.RNG or is more than USER- HOLD-STB.TIM, STB.ER will be displayed. Press the TARE/PRESET key to start averaging again, or press SETUP key to exit. SBI-240 Service Manual...

  • Page 33: Chapter 4 Setup Mode

    Use the [UNIT] key to view the choices within the sub-menu. (e.g. key) Press the [TARE] key to select the desired choice within the sub-menu. Once selected the parameter will be displayed. Press [ZERO] to return back up and return to the setup menu. SBI-240 Service Manual...

  • Page 34: Setup Menu Parameters

    TARE / PRESET SBI-240 Service Manual...

  • Page 35: Confg Menu

    This parameter can’t be changed within the software. RESET Reset Confg menu parameters to default setting REGULa none Select the standard in *None = not legal for trade. which the scale will comply: USA, Canada, Europe Canada Europe SBI-240 Service Manual...
  • Page 36 SECnD. N 100- Second scale full scale The division number under second 125000 value unit. The maximum is 1.25*(PRIM.N). *If (REGULA)≠none, the max is 10,000 NOTE: Secondary division has to match the primary division. SBI-240 Service Manual...
  • Page 37 Speed of A/D conversion NO=10Hz; YES=80Hz; if AD.FROM=COM3,this item will not be shown UNITS UNITS key YES = enable this unit No = disable this unit In trade applications, lb:oz is not allowed lb:oz SBI-240 Service Manual...
  • Page 38 Digital filter1 intensity 1-64 A/D data will be averaged FlT2. T H 0-255 Digital filter2 threshold 0=no filter2 1-254=filter2 used only when vibration in ±0.25d*(1-254) 255= filter2 always used FlT2. S T 0-255 Digital filter2 intensity 0-255=weak to strong SBI-240 Service Manual...
  • Page 39 100%=enable and display format is function 100% 100.0%=enable and display format is 100.0% 100.00%=enable and display format is 100.00% Enable or disable the BMI function *The setting will be limited by the choice of REGULA SBI-240 Service Manual...

  • Page 40: User Menu

    DSP.TIM AC.TIME Figure 4.2 USER Menu Chart The figure above is an illustration of the available menus with the USER menu and the choices within those menus. Refer to Table 4.3 for explanations of the menu choices. SBI-240 Service Manual...
  • Page 41 Note: use PRINT or CMD to output data, the scale must be stable Auto-1 (7) AUTO-1= when weight is removed **Note: If PRINT, STABL, or CMD are used to output data, the scale must be stable. SBI-240 Service Manual...
  • Page 42 GROSS Enable or disable gross weight Prompt is "GROSS" TARE Enable or disable tare weight Prompt is "TARE" Enable or disable net weight Prompt is "NET" Enable or disable output weight Prompt is “PERCENTAGE” PERCNT percentage SBI-240 Service Manual...
  • Page 43 B. L INE NONE LINE1 How many blank lines after NONE= no blank line strings output LINE1 LINE1/2/3/4=there are 1, 2,3 or 4 blank lines after strings, used for LINE2 paper feed forward 1/2/3/4 lines. LINE3 LINE4 SBI-240 Service Manual...
  • Page 44 STABLe (6) STABL= output after scale is stable; Note: use PRINT or CMD to output data, the scale must be stable **Note: If PRINT, STABL or CMD are used to output data, the scale must be stable. SBI-240 Service Manual...
  • Page 45 (4) IBM= only displayed content and current status will be output. Compatible with NCI-SCP12 lfuulf Output Print Formats <LF>WWW.WWuu<CR><LF> (refer to section for details) lfuu- <LF>WWW.WWuu<CR> lf-lf <LF>WWW.WW<CR><LF> lf-- <LF>WWW>WW<CR> -uulf WWW.WWuu<CR><LF> -uu- WWW.WWuu<CR> --lf WWW.WW<CR><LF> WWW.WW<CR> SBI-240 Service Manual...
  • Page 46 Prompt is "PIECE WT" Enable or disable height and Prompt is "HEIGHT" and "BMI" BMI output Enable or disable accumulation Prompt is "ACC. N" and "TOTAL" accumu times and total output Enable or disable date output Prompt is "DATE" date SBI-240 Service Manual...
  • Page 47 (3) IN.LMT = beep when in range of low and high limitation O. H IGH (4) O.HIGH = beep when over high limitation OUT. L MT (5) OUT.LMT = beep when lower than low limitation or higher than high limitation SBI-240 Service Manual...
  • Page 48 HOLD mode. HLD. R nG 0-255 Hold range Window of vibration for Auto to work. 0=any data can be averaged 1-255= only the data which vibration is in 1-255d can be averaged and held. SBI-240 Service Manual...
  • Page 49 3s to turn on or turn off 3-255=auto on when key operation or weight changing. Auto off after 3- 255s elapsed. lcd. c st cst1-8 cst8 LCD contraction level selection SCaL. I D 000000- 123456 Scale ID number 000000-999999 999999 SBI-240 Service Manual...

  • Page 50: Cal Menu

    ON or Off position. This parameter can’t be changed within the software. ZERO Zero point calibration Only do zero point calibration, then go to CAL.END to end (only need where a zero shift has occurred). SBI-240 Service Manual...
  • Page 51 9. 7 6183- Input gravity of user location 9. 9 9999 input Input or view calibration Only used to copy calibration parameter values parameters from one scale to a new scale. cal. e nd Calibration end and restart SBI-240 Service Manual...

  • Page 52: Misc Menu

    Remark dsp. t s Test LCD cm1. r d Test COM1 receiving cm1. t d Test COM1 transmitting cm2. r d Test COM2 receiving cm2. t d Test COM2 transmitting KEY. t s Test keys and buzzer SBI-240 Service Manual...

  • Page 53: Exit The Setup Menu

    Turn the indicator back on by pressing the [ON/OFF] key. The display will go through a digit check, then settle into the normal operating mode. All front panel keys will now return to their normal mode of operation. SBI-240 Service Manual...

  • Page 54: Chapter 5 Calibration

    When ZERO is selected, remove all weight from the scale and press the TARE/ PRESET key to confirm. The ZERO will flash when it is in the catching zero point state. After receiving reasonable data, it will automatically continue to step 8. SBI-240 Service Manual...

  • Page 55: Linearity Calibration

    When the third standard weight displayed after CAL.P3 is shown. This is the standard weight calibration for the third point. Place corresponding weight (more than 10%FS weight, and larger than the weight used on CAL.P2) onto the scale. SBI-240 Service Manual...

  • Page 56: Geographical Adjustment

    70) according to the elevation and latitude from Table 5.1 by using the key. Press TARE/PRESET key to confirm. CAUTION! Only an authorized manufacturer representative or certified verification personnel may make these changes. Changing the Geographical setting alters the calibration values! SBI-240 Service Manual...
  • Page 57 Table 5.1 Location Code For Elevation and Latitude SBI-240 Service Manual...

  • Page 58: Input Or View Calibration

    After the indicator gets all needed data, it will calculate and store all calibration parameters into EEPROM or after finishing calibration, it will display CAL. n d. The scale will re-start and go back to original mode. SBI-240 Service Manual...

  • Page 59: Display Adc Output Code

    In display net mode, press the UNIT/DATA key to select displaying code that has been filtered by no-filter, filter1 and filter2. The LO, OK, and HI annunciators will be lit. Press the SETUP key to return to the last menu item. Press the [ON/OFF] key to exit this mode. SBI-240 Service Manual...

  • Page 60: Chapter 6 Serial Communication

    Table 6.1 Symbols Used <LF> Line Feed character (hex 0AH) <CR> Carriage Return character (hex 0DH) <ETX> End of Text character (hex 03H) <SP> Space (hex 20H) Four current status bytes <P> Polarity character: "-" or " " SBI-240 Service Manual...
  • Page 61 1 = initial zero error 1 = low battery always 1 always 1 always 1 always 1 always 1 always 1 always 1 always 1 always 0 always 1 always 1 always 0 parity Parity parity Parity SBI-240 Service Manual...

  • Page 62: Commands And Response

    <LF> H <CR><ETX> Command: Z<CR> (5ah 0dh) Response Zero function is activated (simulate ZERO key) and it returns to current scale status. <LF> H <CR><ETX> If ZERO function cannot be activated, it will return to current scale status. SBI-240 Service Manual...
  • Page 63 <LF>^^^^^^^^U <CR><LF> H <CR><ETX>---over capacity <LF>________U <CR><LF> H <CR><ETX>---under capacity <LF>-------- U <CR><LF> H <CR><ETX>---zero-point error <LF><P>W <DP>W <CR><LF>H <CR><ETX>---normal data S<CR> 53 0d <LF>H <CR><ETX>; read scale status Z<CR> 5a 0d <LF>H <CR><ETX>; simulate ZERO key SBI-240 Service Manual...

  • Page 64: Parameter Multpl

    LYOUT is set to MULTI, the output from COM may be slower than the data processed by the indicator. For "real time" data, select fewer output contents and set a higher baud rate for C<CR> --- USER-OUT-LINE is set to LINE1/2/3/4 <ETX> --- Last byte of string frame SBI-240 Service Manual...
  • Page 65 0.05kg ACC.N TOTAL 23456pcs DATE 2014-12-29 TIME 12:34:56 A/D CODE: 1234345 VOLTAGE: 6.7V STATUS: bpq2 In Percent Weighing Mode: SCALE ID: 123456 GROSS: 12345lb TARE: 10lb NET: 12335lb PERCENTAGE: 91.4% 1% REF. WT. 135lb ACC.N TOTAL 271.6% SBI-240 Service Manual...

  • Page 66: Parameter Eh-Scp (Ps-60)

    0 = not under zero (positive polarity) 1 = under zero (negative polarity) 0 = inside zero capture range 1 = outside zero capture range 0 = not center of zero 1 = center of zero always 1 always 1 parity SBI-240 Service Manual...

  • Page 67: Parameter Scp-12

    1 = RAM ok 1 = ROM error 0 = eeprom error 0 = calibration ok 1 = eeprom ok 1 =calibration error always 1 always 1 always 1 always 1 always 0 always 0 parity parity SBI-240 Service Manual...

  • Page 68: Output Print Formats

    Formatted Output Data String Selection Display <LF> WWW.WW <CR> <LF> LFuuLF* <LF> WWW.WW <CR> LFuu- <LF> WWW.WW <CR> <LF> LF-LF <LF> WWW.WW <CR> LF-- WWW.WW <CR> <LF> -uuLF WWW.WW <CR> -uu- WWW.WW <CR> <LF> --LF WWW.WW <CR> *Default factory setting SBI-240 Service Manual...

  • Page 69: Ups Worldship

    Weight characters from display Units of measure <CR> Carriage Return character (hex 0D) 6.5 UPS Worldship Try the following settings: (1) USER-COM1(or 2)-BAUD.RT=4800 (2) USER-COM1(or 2)-BYT.FMT=7E1 (3) USER-COM1(or 2)-LAYOUT=SCP-12 (4) Set scale port to NCI3835 in UPS worldship. SBI-240 Service Manual...

  • Page 70: Chapter 7 Test

    A terminal program such as Hyper Terminal is also needed for testing. Note: baud rate is selected by USER-COM1/2-BUD.RT, 8N1 byte format is fixed, Hex data (0x00 - 0xff) are used. Press and hold the SETUP key until confIg is displayed. SBI-240 Service Manual...

  • Page 71: Keyboard And Buzzer Test

    In this mode, press a key. The value of the key will be displayed and the buzzer will beep depending on what the USER-BEEP-KEY item is set to. Press the SETUP key to return to last menu item. Press the ZERO/ON/OFF key to exit. SBI-240 Service Manual...

  • Page 72: Chapter 8 Troubleshooting

    Troubleshooting This chapter gives explanations on commonly seen errors, display characters and display symbols. 8.1 Display Characters ASCII LCD/LED ASCII LCD/LED ASCII LCD/LED SBI-240 Service Manual...

  • Page 73: Display Symbols

    Sample load weight of high point. SPL. P Wt Sample goods weight to calculate piece weight INp. P CS Input number of pieces being counted spl. p ct Input percentage weight acc. x xx Number of accumulations (xxx) SBI-240 Service Manual...

  • Page 74: Error Messages And Troubleshooting

    Cannot zero the display 1. Load on scale exceeds allowable 1. Remove load on scale. limits.(2%FS) 2. Wait for load to become stable. then press the 2. Load on the scale is unstable ZERO/ON/OFF key to zero the display. SBI-240 Service Manual...

  • Page 75: Replacement Parts

    2. Load cell received a heavy impact 3. Perform GEO calibration Battery symbol is empty or Low battery. Replace the batteries. Lo. b At is shown 8.4 Replacement Parts Part Number Description 9V 600mA power adapter, center positive Display indicator SBI-240 Service Manual...
  • Page 76 SBI-240 Service Manual...
  • Page 78 Brecknell USA 1000 Armstrong Dr. Fairmont MN 56031 Tel:507-238-8702 Fax:507-238-8271 Email: sales@brecknellscales.com http://www.brecknellscales.com Brecknell UK Foundry Lane, Smethwick, West Midlands, England B66 2LP Tel:+44 (0) 8452 46 6717 Fax:+44 (0) 8452 46 6718 Email: sales@brecknellscales.co.uk http://www.brecknellscales.com...

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