Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Citizen CTB-150
Summary of Contents for Citizen CTB-150
- Page 1 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! "#$%&'()*%!+#,&-('.!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!/!0$)%1!2%,#$! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!340!2$'*$5!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-
Page 2: Table Of Contents
CTB serial bench scale service manual UGCTB-E1.0 Table of Contents S E C T I O N 1 I N T R O D U C T I O N … … … … … … … … … … … … … … … … … … … … … … 1 S E C T I O N 2 S P E C I F I C A T I O N S …... - Page 3 CTB serial bench scale service manual SECTION14 CHANGE PARTS PROCESS…………………………………………...21 14.1 Replace main board……………………………………………………….……..21 14.2 Replace load cell……………………………………………………..……………21 14.3 Replace MPU…………………………………………….………………………...22 14.4 Replace battery………………………………………………….…………………22 SECTION15APPENDIX…………………….………………………………………..…23 15.1 Schematic (main)…………………………………………………………….….…23 15.2 Schematic (display)………………………………………..………….……..……24 15.3 Parts drawing…………………………………………….…………..…….……...25 15.4 Parts list…………………………………………………….……………….……...26 15.5 Error codes…………………………………………………………………………27 15.6 Numeric and alphabetic characters displayed on LCD……………….……….27...
-
Page 4: Section 1 Introduction
CTB serial bench scale service manual SECTION 1 INTRODUCTION The CTB series of bench scale provides an accurate, fast and versatile series of general purpose weighing scale with counting and check-weighing functions. There are 3 series scales within the range, the platform size from 420mm x 520mm , the capacity range from 150lb to 600lb. -
Page 5: Section 2 Specifications
CTB serial bench scale service manual SECTION 2 SPECIFICATIONS Model CTB-150 CTB-300 CTB-600 Platform size 420mm x 520mm 420mm x 520mm 420mm x520mm Capacity 150lb 300lb 600lb Resolution 1:3000 Interface RS-232 Output Optional (standby) Stabilisation Time 1 Seconds typical Operating 5°C - 35°C / 41°F - 95°F... -
Page 6: Section 3 Installation
CTB serial bench scale service manual SECTION 3 INSTALLATION GENERAL INSTALLATION The scales should be sited in a location that will not degrade the accuracy. Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning vents. Avoid unsuitable tables. -
Page 7: Section 4 Key Descriptions
CTB serial bench scale service manual SECTION 4 KEY DESCRIPTIONS Zero or Set the zero point for all subsequent weighing. The display shows zero. A secondary function , of "Enter" key when setting parameters or other functions. Tare or Tares the scale. Stores the current weight in memory as a tare value, subtracts the tare value from the weight and shows the results. -
Page 8: Section 5 Displays
CTB serial bench scale service manual SECTION 5 DISPLAYS The LCD display will show a value and a unit to the right of the digits. In addition there are labels for TARE, GROSS weight, Zero and for Low battery Low Battery Symbol Parts Counting Units Stability Symbol /pcs... -
Page 9: Section 6 Operation
CTB serial bench scale service manual SECTION 6 OPERATION 6.1 Zeroing The Display You can press the ZERO/ENTER key at any time to set the zero point from which all other weighing and counting is measured, within set % in 0-Range parameter from power up zero. -
Page 10: Check-Weighing
CTB serial bench scale service manual Before beginning, tare the weight of any container that will be used, leaving the empty container on the scale. Place the number of samples on the scale. The number should match the options for parts counting, 10, 20, 50, 100 or 200 pieces. Press the SMPL key to begin. -
Page 11: Accumulated Total
CTB serial bench scale service manual 6.5.3 Set check weighing mode Press F key to enter setting mode, press TARE until display show “F4 OFF”, press ZERO key to enter, press TARE key until display show “BEEP”, press ZERO key to enter, press TARE key to select BP 2(check mode 2), BP3 (check mode 3), BP1(not sound), press ZERO key to sure, press PRINT/M+ key to escape. -
Page 12: Section 7 Parameters
CTB serial bench scale service manual SECTION 7 PARAMETERS The scale has 6 parameters that can be set by the user plus a method of entering the calibration section. To set parameters press the FUNC key. The display will show the first function, "F0 H-L". Pressing the TARE/+ will cycle through the other functions. - Page 13 CTB serial bench scale service manual FUNCTION MENU SETTINGS DEFAULT FUNCTION SUB-FUNCTION DESCRIPTION VALUE Set a value for the Low limit. 000.000 F0 H-L SEt Lo Set a value for the High Limit. 000.000 SEt HI Clears the accumulation memory F1 toL to CLr without printing the results.
- Page 14 CTB serial bench scale service manual SECTION 8 BATTERY OPERATION The weighing indicator can be operated from the battery if desired. The battery life is approximately 100 hours. When the battery needs charging a symbol on the weight display will turn on. The battery should be charged when the symbol is on.
- Page 15 CTB serial bench scale service manual SECTION 9 RS-232 OUTPUT (opt ional) The CTB Series of scales can be ordered with an optional RS-232 output. Specifications: RS-232 output of weighing data ASCII code 8 data bits No Parity Connector: 25 pin d-subminiature socket Pin 2: Output Pin 3: Input, not used at this time Pin 5: Signal Ground...
- Page 16 CTB serial bench scale service manual SECTION 10 CALIBRATION Turn the power off. During the counting from 9 to 0 press the FUNC/C key. The display will show "CAL " for a few seconds. While it is showing "CAL " press the UINT , PRINT and TARE keys in sequence to enter the Calibration section.
- Page 17 CTB serial bench scale service manual This option is used to select the auto zero P1 REF AZN 0 tracking. Options : 0.25d, 0.5d, This option is used to select the Initial zero 0-AUTO setting range (mechanism) when turn the indicator.
-
Page 18: Section 12 Trouble Selfchecking
CTB serial bench scale service manual Display blank after turn on Pan not installed Check the pans are installed test, Unstable weight correctly. Error Load cell damaged Try turning the scale on again. message Mechanics damaged Display is locked Maximum capacity exceeded OL or FULL Check the pans are installed Load Cell or mechanics... -
Page 19: Section 13 Troubleshooting
CTB serial bench scale service manual Loading Overload Stops not correct shipping screws, and verify pan error Load Cell damaged installation. Mains voltage not present or too Verify the batteries are Battery will rechargeable types. Charging circuit failure Check power supply voltage is charge Battery Failure correct. -
Page 20: No Display
CTB serial bench scale service manual 13 3 Can’t charge the battery START Battery bad? (battery Replace battery Fuse open? Replace the fuse and solve the problem (like transformer bad) Cut the circuit, then CHK transformer output >10V Replace transformer Open U5 pin11/12, CHK BR1 output... -
Page 21: Can't Charge The Battery
CTB serial bench scale service manual 13 4 Can’t weigh START CHK whether can show internal counts Add load on pan, CHK CHK M/B counts raise pin15=5V Do calibrate CHK power circuit CHK load cell input circuit Add load on pan, CHK output between AU1 pin1 and pin2 signal... -
Page 22: Can't Weighing
CTB serial bench scale service manual 13 5 unstable START OK after warn Dispel humidity Load cell and bracket touch something Solve touch problem CHK M/B AU1 and around circuit 13 6 Can’t use keyboard... -
Page 23: Reading Jump
CTB serial bench scale service manual START Find the line for useless key, short and open it, CHK the scale accept this Replace keyboard CHK U1 and around circuit Note: M/B means main board, D/B means display board. SECTION 14 CHANGE PARTS PROCESS 14 1 Replace main board At first, release indicator from indicator bracket, like... -
Page 24: Replace Main Board
CTB serial bench scale service manual power) must be pulled out at first and plug at last After check anything try to turn on the power if anything is OK close the back cover replace main board completely. 14 2 replace load cell At first, use internal hexagon screw driver release 4 pcs screw from... -
Page 25: Replace Battery
CTB serial bench scale service manual 14 4 replace battery At first, release 4 pcs screw of the battery cover. use cross screw driver, Then, open the battery cover, you can bring the battery from scale, use iron solder off wire, bring new battery, use iron to solder the battery, (Attention: red line to positive electrode, black line to minus electrode), after check anything, plug the connector for power and try to turn on the power, if scale work correctly, replace battery completely. -
Page 26: Section15Appendix
CTB serial bench scale service manual SECTION15 APPENDIX 15.1 SCHEMATIC (main) TIP31C POWER 100K AST2 VOUT VREF+ LOADCELL VREF VREF- OSC2 4.9152 N.I. OSC1 AC10 3.9K AC11 0.022UF 0.022UF AC12 A1N1+ 25V/470UF COMP A1N1- 0.022UF A1N2+ LM723CN SCLK A1N2- SCLK AC13 0.022UF CS5532... -
Page 27: Schematic (Display)
CTB serial bench scale service manual 15.2 SCHEMATIC (display) BUZZ 9014 103G KEEP P10/T P11/T PCH1 SEG27 SEG7 SEG7 SEG8 PCH2 SEG26 SEG6 SEG6 SEG9 SEG25 SEG5 SEG5 SEG10 SEG24 SEG4 SEG4 SEG11 SEG23 SEG3 SEG3 SEG12 DATA SEG22 SEG2 SEG2 SEG13 SEG1... -
Page 28: Parts Drawing
CTB serial bench scale service manual 15. 3 PARTS DRAWING... -
Page 29: Parts List
CTB serial bench scale service manual 15. 4 PARTS LIST Parts No. Parts name Material Spec overlay iron plate iron Top cover Main PCBA washer EPDM screw S18C M4 x 8 Battery holder SUS#304 Battery Lead acid 6V/4Ah Bottom cover washer EPDM screw... -
Page 30: Error Codes
CTB serial bench scale service manual 15. 5 ERROR CODES ERROR DESCRIPTION RESOLUTION CODES Over range Remove weight from the scale. - - - - If the problem persist contact your dealer for assistance. Date Setting Error Enter date using correct format and reasonable Err 1 values.
Need help?
Do you have a question about the CTB-150 and is the answer not in the manual?
Questions and answers