Bongshin BS-235 Instruction Manual
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Bongshin BS-235 Instruction Manual

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BS-235
 
 
Digital Indicator
 
The Better Way for Weighing & Measurements

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Summary of Contents for Bongshin BS-235

  • Page 1 BS-235     Digital Indicator   The Better Way for Weighing & Measurements...

  • Page 3: Table Of Contents

    Table of Contents   1. Introduction.............................3 1-1 Trait ..............................3 1-2 Warning ............................. 4 2. Specification............................5 3. External Size............................6 4. Description on Front Panel…......................7 5. Description on Rear Panel........................9 5-1 Description on Each Terminal Unit...................... 9 5-2 How to Use Terminal Block and Replace Fuse...................12 6.
  • Page 4   10. Analog Output..........................44 10-1 Analog Output Mode ........................44 10-2 Analog Output Specification and Connection Method..............45 10-3 Analog Output Zero and Span Calibration..................46 10-4 Analog Output Zero and Span Minute Calibration................48 10-5 Analog Output Check........................50  ...

  • Page 5: Introduction

    All functions can sufficiently be utilized if you thoroughly read the manual before use.       1-1 Features   BS-235 is high precision high speed indicator of 48x96mm size. ■ High precision 24bit Sigma-Delta A/D converter ■ High speed A/D and D/A conversion of 2000 time/sec ■...

  • Page 6: Warning

    1-2 Warning   ■ Check whether or not there was damage in product during the delivery. ■ Do not drop or exert server impact on the product. ■ Front panel control button is operated with light touch thus do not exert excessive strength. Do not use or store product at location with severe temperature change if possible.

  • Page 7: Specification

    2. Specification     Load Cell excitation DC 5V, 60mA ( 350Ω x 4 load cells can be connected ) Min. Input Sensitivity 0.2μV /Digit (min.) Non-linearity 0.01% F.S. max. Analog Input Signal Range -34 mV ~ +34 mV Zero: ±0.1μV/ °C RTI max. Temperature drift SPAN: 10ppm/°C max.

  • Page 8: External Size

      3. External Size           High Precision DIGITAL INDICATOR                                     AC 85~240V OPTION INPUT RELAY OUTPUT DC 10~30V   POWER  ...

  • Page 9: Description On Front Panel

    4. Description on Front Panel       High Precision DIGITAL INDICATOR Status Lamp HOLD ZERO STABLE Weight Value Display Key Switch       Display of measurement data and setting value is conducted. Weight Value Display Setting of decimal point is conducted at function mode. Status Lamp : It flickers when it is lower or higher than rLY1(L1) relay setting value.
  • Page 10 Key Switch It is used when entering user setting mode from measurement mode. It is used when exiting to measurement mode from user setting mode. (ESC function) It is used as a key to increase and decrease the numerical value of selected number line of user setting mode.

  • Page 11: Description On Rear Panel

    5. Description on Rear Panel         Input Signal Relay Output     AC 85~240V OPTION INPUT RELAY OUTPUT   DC 10~30V Option POWER     Frame Grounding       10 11 12 13 14 15    ...
  • Page 12 5-1-2 LOAD CELL Connection (1) (2) (3) (4) (5)   Name Contents Terminal No. SIG - Load Cell Input Voltage (-), Blue wire SIG + Load Cell Input Voltage (+), Green wire EXC - Load Cell Voltage (-), White wire EXC + Load Cell Voltage (+), Red wire SHIELD...
  • Page 13 5-1-3 Input (6) (7) (8) Terminal No. Name Contents COM1 Common terminal of external control Control terminal of zero function ZERO Valid from COM1 terminal and short circuit (or on coin) Control terminal of hold function HOLD Valid from COM1 terminal and short circuit (or on coin)  ...

  • Page 14: How To Use Terminal Block And Replace Fuse

    5-2 How to Use Terminal Block and Replace Fuse   5-2-1 How to use terminal block 1) Peel off the sheath at the end of cable.   2) Terminal is opened when putting driver inside the terminal opening device (top of terminal) and push.   3) Terminal is fastened when inserting the cable and pulls back the driver.

  • Page 15: Calibration

    6. CALIBRATION   There are three types of calibration mode.     6-1 Calibration Mode     6-1-1 Mode     ■ Digital calibration mode Calibration shall be conducted not by using the actual load but entering rated output and rated capacity of sensor with key.

  • Page 16: Digital Calibration Mode

      6-2 Digital calibration mode     6-2-1 Calibration Method Step 1. Decimal point setting and min. gradation setting High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR When you push No.2 key while It is changed to decimal point After ‘dP’...
  • Page 17 High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR After ‘LCCAL’ display, After ‘CAPA’ display, Input load cell rated output Input rated capacity of load cell Digital input is completed when using No. 2 and No.3 key and with the use of No.2 and No.3 pushing No.4 key and it returns Push No.4 key.

  • Page 18: Actual Load Calibration Mode

    6-3 Actual load calibration mode           6-3-1 Calibration Method Step 1. Decimal point setting and min. gradation setting High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR After ‘dP’ display, Entry to function mode is It changes to decimal point Push No.
  • Page 19 High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR Select Unload among Load and Conduct zero calibration. Unload with the use of No.2 It is changed to dead weight and No.3 key and push No.4 value mode when pushing If the zero setting has already key when there is nothing on No.

  • Page 20: Linearization Calibration Mode

    6-4 Linearization Calibration Mode     6-4-1 Calibration Method A little measurement error may occur in between the max capacity due to trait of measurement unit even upon the completion of zero and span calibration. Linearization calibration mode is a type of calibration mode which conducts non-linear calibration that reduces the measurement error by conducting calibration with max 4 points excluding the zero with the use of actual load.
  • Page 21 Step 2. Zero calibration and dead weight setting High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR Push No.2 key while pushing It is changed into L-CAL mode Enter into L-CAL mode by No.3 key . when pushing either No.2 or pushing No.4 key.
  • Page 22 High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR Push No.4 key after Linearization calibration Check the dead weight entering dead weight has been completed. value that is presented value with the use of at display. No.2 and No.3 key and entering the last dead weight upon the display of SPAn.

  • Page 23: Digital Zero Calibration Mode

    Valid at COM1 terminal or terminal block (or on coin)     AC 85~240V OPTION INPUT RELAY OUTPUT DC 10~30V POWER 10 11 12 13 14 15 SWITCH or RELAY BS-235 Inside 6. COM1 External zero point input 7. ZERO 10ms or longer  ...
  • Page 24 6-5-3 Zero Tracking Automatic update of zero point shall be conducted by detecting the movement of zero point with the use of zero tracking function (setting shall be conducted at function). Zero tracking shall only be conducted when width and time function of zero tracking are already set. Zero tracking is not conducted when zero point is within zero calibration range.
  • Page 25 6-5-4 Power On Zero Digital zero shall be conducted when the power is turned on. (setting shall be conducted at function). Zero calibration shall be conducted based on power input point. Take caution in use when there are contents such as hopper scale and others. Range of zero calibration is 100% of max capacity.

  • Page 26: Function Mode

    7. Function Mode   It is description on function mode which sets various functions.     7-1 Function Setting Method     7-1-1 Mode Entry Method 1. It turns into the mode selection status when key is pushed while pushing key is pushed at measurement status.

  • Page 27: Function Items

    7-2 Function Items Item Display Setting Value Contents of Setting Display Polarity Display Display (-) value shall be selected. bip- Display of both +/- Zero lamp is turned off when load High Precision DIGITAL INDICATOR No display of display value goes down under (-) value UnIP minus polarity with zero point as its reference in case...
  • Page 28   Item Display Setting Value Contents of Setting Hold Mode NonE None Select the hold function. High Precision DIGITAL INDICATOR EdGE Edge Hold Warning : In case it is set as ‘None’, it Peak Hold does not operate even when signal is given from key hold and external contact point.
  • Page 29 Item Display Contents of Setting Setting Value Mode is not displayed when no option is installed or when serial Analog Output (DAC) communication option is installed. Analog Output Mode 0 ~ 10V output Analog output mode shall be High Precision DIGITAL INDICATOR selected.
  • Page 30     Item Display Setting Value Contents of Setting Communication Output It is displayed only when Serial communication option is installed. Communication ID High Precision DIGITAL INDICATOR Setting Range Communication address shall be 00 ~ 15 selected. Communication Speed 1200 1200 bps 2400 2400 bps...
  • Page 31 Item Display Contents of Setting Setting Value Number of Number of communication output Communication Output shall be set. Stream mode 0.01: 0.01 sec/time setting range High Precision DIGITAL INDICATOR 0.10 0.01 ~ 9.99 9.99: 9.99 sec/time Data is transmitted for each set time interval.

  • Page 32: Hold

    8. HOLD                    Hold function is a function to stop the display. Hold and cancellation can be conducted from front key or control terminal. In order to conduct hold, hold mode shall be selected from the function.   8-1 Hold Mode  ...
  • Page 33 High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR It moves onto next stage It moves onto next stage After ‘ZEro_S’ display, after saving option item Change the hold mode by It is changed to when pushing No.4 key after pushing either No.2 or No.3 measurement mode when changing PK hold change.

  • Page 34: Hold Type

    8-2 Hold Type     8-2-1 Edge hold mode Edge hold conduct s hold of display and output at the moment of hold input.     Load cell input ····················· Display value                  ...

  • Page 35: Hold Operation

    8-3 Hold Operation     8-3-1 Operation by hold key (Hold ON) Hold is commenced when you push No.1 key while pushing No.4 key and hold value is displayed. High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR Hold is commenced when Hold lamp is flickered and Display is made with...
  • Page 36 Please refer to 11. Serial Output for detailed contents.        1. Hold ON command Hold is commenced. Command Example Command <STX> <ETX> ※ BS-235 Format 2. Hold OFF command Hold is cancelled. Command example Command <STX> <ETX> ※ BS-235 Format...

  • Page 37: Relay Mode

    9. Relay Mode     Relay operation mode shall be selected from function. Relay output shall be conducted from output terminal L1(LO), L2(OK), and L3(HI) or rear panel.     9-1 Relay Mode     9-1-1 Relay set up method – rLY1(L1), rLY2(L2), rLY3(L3) It turns into the mode selection status when key is pushed while pushing key is...
  • Page 38 High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR It moves onto next stage You can also set the L2 Hi Relay setting has been after saving selected item relay in the same way. completed and setting value is saved.

  • Page 39: Relay Comparator Mode

    9-2 Relay Comparator Mode     9-2-1 Relay operation mode There are three modes and measurement value and setting value is compared and output from relay output terminal (L1, L2, L3) of rear panel. Display Relay Operation Mode r1.Lon, r2.Lon, r3.Lon b contact r1.ron, r2.ron, r3.ron range contact...
  • Page 40 9-2-2 Example of relay operation   r1.Hon, r2.Hon, r3.Hon ■ H ON relay motion mode : : The load within the limits will activate a relay ON. Weight L3 ON L3 Hi value [ HI ] L3 Lo value L3 OFF L2 ON L2 Hi value [ OK ]...
  • Page 41   r1.Lon, r2.Lon, r3.Lon ■ L ON relay motion mode : : The load within the limits will activate a relay OFF. Weight L3 OFF L3 Hi value [ HI ] L3 Lo value L3 ON L2 OFF L2 Hi value [ OK ] L2 Lo value L2 ON...
  • Page 42 r1.ron, r2.ron, r3.ron ■ r (range) ON relay motion mode : : Indicates the result of judgment and turns on. If Lo judgment value ≦ the measured value ≦ Hi judgment value. Weight L3 OFF L3 Hi value [ HI ] L3 ON L3 ON L3 Lo value...
  • Page 43   r1.Lon, r2.ron, r3.Hon ■ Comparator weighing mode : : Indicates the result of judgment and turns on. If L1 judgment value ≦ L2 judgment value ≦ L3 judgment value. Weight [ HI ] L2 OFF L3 Hi, Lo value L2 Hi value L2 ON [ OK ]...
  • Page 44   ■ Set the Low setting value and Hi setting value to the same, r1.Hon, r2.Hon, r3.Hon H ON relay motion mode : : The load within the limits will activate a relay ON. Weight L3 ON L3 Hi value [ HI ] = L3 Lo value L3 OFF...
  • Page 45   ■ Set the Low setting value and Hi setting value to the same, r1.Lon, r2.Lon, r3.Lon L ON relay motion mode : : The load within the limits will activate a relay OFF. Weight L3 OFF L3 Hi value [ HI ] = L3 Lo value L3 ON...

  • Page 46: Analog Output

    10. Analog Output     There are two types of analog output. Mode selection shall be conducted from function. Since it is optional specification, it is equipped upon order. When the serial (RS-232C, 422/485) option is equipped, this mode is not displayed. Insulation has been conducted for output circuit and main circuit.

  • Page 47: Analog Output Specification And Connection Method

    10-2 Analog output specification and connection method (DAV, DAI)   For DAV(DAI) output, the measurement value is converted into D/A and output as analog voltage (current). Output range include 0~5V, 0~10V, 0 ~ ±5V, 0 ~ ±10V, 0~20mA, and 4~20mA. Output scaling and minute calibration is set from function.

  • Page 48: Analog Output Zero And Span Calibration

    10-3 Analog Output Zero & Span Calibration   Measurement equivalent to 0V(0mA, 4mA), and 10V(20mA) of DAV (DAI) output is set. Output scaling is set from function. This mode is not displayed with the equipment of serial (RS-232C, 422/485) option .  ...
  • Page 49 10-3-2 Analog output graph (DAV) Output voltage Output voltage (5V) (5V) DAC LO DAC HI DAC HI DAC LO Measurement value Measurement value Output voltage   (5V) In case of setting dAo_Lo and dAo_Hi as same value, output   does not increase from 0V                                                                                                     Reverse output is only applicable at 0~10(5V) setting.   DAC LO DAC HI Measurement value                                                                                                      It is not applicable at 0~±5V, 0~±10V, 0~20mA, 4~20mA output.                                                                                                       For reverse output, in case of setting dAo_Lo setting value and      dAo_Hi setting value is each set as 10.000 and 0.000,   0V and 10V (5V) is each output from 10.000 display value   and 0.000 value.   ...

  • Page 50: Analog Output Zero And Span Minute Calibration

    10-4 Analog output zero and span minute calibration   Minute calibration is conducted for measurement value equivalent to 0V(0mA, 4mA), and 10V(20mA) of DAV (DAI) output. Output minute calibration is set from function. This mode is not displayed with the equipment of serial (RS-232C, RS-422/485) option.  ...
  • Page 51 10-4-2 Analog output zero & span minute calibration range   Range of minute Minute calibration Output change width for minute Output mode calibration setting value calibration 10 (-10) 0.002V increase (decrease) 20 (-20) 0.004V increase (decrease) 0 ~ 10V output 0 ~ 9999 (-9999) 100 (-100) 0.02V increase (decrease)

  • Page 52: Analog Output Check

    10-5 Analog Output Check   Analog output (voltage or current) corresponding to the analog Hi value is output by key operation. You can check the linearity by increasing or decreasing the output by changing the display value. It is possible to check the output even when no load is applied. The voltage or current value is output according to the specification selected in the analog output mode setting.

  • Page 53: Serial Output

    11. Serial Output     Serial output is an interface which conducts the output of display value as serial data. It is used to process control, collection, record, and others with access to PLC. Various setting shall be selected from function mode. This mode is not displayed with the equipment of analog output (DAI,DAV) option.
  • Page 54 Longitudinal resistance shall be exerted to both ends of writing. (100Ω ~ 120Ω, 1/2W~2W) There may be a reverse display of A and B for some master equipment. Connect by changing A and B in case communication is unavailable. 2. Multiple connection of BS-235 to 1 master [ BS-235 ] Pin 4...

  • Page 55: Format

    11-2 BS-235 Format (BONGSHIN Format)     11-2-1 Stream Mode   Sign Weight Data Decision <STX> <ETX> ± <STX> <ETX> ± <STX> <ETX> ± <STX> <ETX> ± Warning : When there is no decimal point in display, decimal point is received at the end of weight data.
  • Page 56 2. Zero command Zero command is executed. Command example Command     <STX> <ETX> 3. Hold ON command Hold is commenced. Command example     Command <STX> <ETX> 4. Hold OFF command Hold is cancelled. Command example     Command <STX>...
  • Page 57 5. Command to send the Low/High limit values (rLY.1H/rLY.1L, rLY.2H/rLY.2L, rLY.3H/rLY.3L) Check the set Lo/Hi value through communication. Command example COMMAND <STX> <ETX> <STX> <ETX> <STX> <ETX> <STX> <ETX> <STX> <ETX> <STX> <ETX> Response example (with decimal point) COMMAND VALUE Sign <STX>...
  • Page 58 6. Command to set Low/High limit values (rLY.1H/rLY.1L, rLY.2H/rLY.2L, rLY.3H/rLY.3L) The Lo/Hi value must be set to Communication. For sign setting, both (+) and (-) are available. Command example (with decimal point) COMMAND VALUE Sign <STX> <ETX> <STX> <ETX> <STX> <ETX>...
  • Page 59 11-3 BS-205 Format (BONGSHIN Format)   When set to BS-205 format, the command mode is different from BS-235 Format.   11-3-1 Stream Mode   Sign Weight Data <STX> <ETX> ± <STX> <ETX> ± <STX> <ETX> ± <STX> <ETX> ± Warning : If there is no decimal point in the display display, the digit after the sign is treated as _ (space).
  • Page 60 2. Zero command Zero command is executed. Command example Command   ※ If the ID is 1, it is explained as an example. 3. Hold ON command Hold is commenced. Command example   Command ※ If the ID is 1, it is explained as an example. 4.
  • Page 61 11-4 BS-7300 Format (BONGSHIN Format)   In case of BS-7300 format setting, command mode is same as 11-2-2 command mode.   11-4-1 Stream Mode Sign   Weight Data ± ± ± ± Warning : If there is no decimal point in the display display, the digit after the sign is treated as 0 (zero).
  • Page 62 11-5 AND Format   11-5-1 AND Format In case of AND format setting, command mode is same as 11-2-2 command mode. Transmission Method Full duplex, Asynchronous Transmission Speed 1200 bps ~ 115200 bps Data bit 7, 8 bits Parity bit None, Even, Odd Stop bit 1 bit...

  • Page 63: Check Mode

    12. Check Mode     It is a mode to check load cell output (mV), check DAC(DAI) output, select option setting, and initialize setting value.   12-1 Operation for each check mode   12-1-1 How to enter check mode 1. It turns into the setting available status when key is pushed while pushing key is pushed at measurement status.
  • Page 64 12-1-3 Optional output (DAC, RS-232C, RS-422/485, BCD) selection mode It is a mode to select optional output. It shall be selected in case of equipment with change in option. In case of using analog output voltage (current) and serial output (RS-232C, RS-422/485), it shall be changed into DAC and RS-232 or RS-485 respectively.
  • Page 65 12-1-5 Initialization Mode Various settings of data are initialized. All settings including calibration, function setting, optional output setting, and others are initialized. Take caution since calibration setting is also initialized. In case of conducting actual load calibration, dead weight may be necessary upon recalibration. High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR High Precision DIGITAL INDICATOR...

  • Page 66: Key Lock Mode

    13. Key Lock Mode     It is a key lock mode. It is a mode to protect calibration & zero setting and function item setting value. If it is set to key lock mode, “LoCK” is displayed during calibration and function setting. When zero and hold signals are operated as input signals, they operate regardless of key lock.

  • Page 67: Repair

    14. Repair       14-1 Error message   In case of error display, please take measure accordingly with the countermeasures. Cause Countermeasure Error display Key lock function is operated. Conduct key lock cancellation with the use of 13-2 KEY Lock cancellation method. 1.

  • Page 68: Load Cell Access Diagnosis

    Load cell focused voltage EXC+ SIG+ Around DC 2.5V EXC- SIG- Around DC 2.5V       14-4 Pattern of display character   Below table illustrates the display pattern of BS-235.                       ...

  • Page 69: Warranty And A/S

    Forwarding of this product is conducted through strict quality management and inspection process. Please contact the agency or our company in case of defect occurrence. - A/S and Product Inquiry - 55, Seobuk-ro, Gajang Ind.Complex, Osan-si, Korea TEL : 82-31-742-6661 FAX : 82-31-742-6664 www.bongshin.com e-mail : loadcell@bongshin.com            www.loadcell.co.kr  ...

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