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Summary of Contents for OHAUS STARTER 5000
- Page 1 STARTER 5000 BENCH TOP pH METER SERVICE MANUAL Ohaus Corporation 7 Campus Drive, Suite 310, Parsippany, NJ 07054 (973) 377-9000...
- Page 3 BENCH TOP pH METER SERVICE MANUAL The information contained in this manual is believed to be accurate at the time of publication, but Ohaus Corporation assumes no liability arising from the use or misuse of this material. Reproduction of this material is strictly prohibited.
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Page 5: Table Of Contents
Drawings and Part Lists ...................4-1 APPENDIX A ST5000 SERVICE MODE Service Mode ......................A-1 Service Mode ......................A-1 Entering to Service Mode ..................A-1 Service Password ....................A-2 Options In Service Mode ..................A-3 ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 6 Com Port Configuration ..................B-4 Image File Selection ................... B-4 Progress ......................B-5 Status ......................... B-5 Software Downloading in Progress ..............B-6 Software Downloading Completed Successfully ..........B-7 B-10 Closing the Application ..................B-7 ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual...
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Page 7: Chapter 1 Getting Started
This service manual contains instructions for the diagnosis and repair work to be performed by Ohaus Dealers or Ohaus authorized service centers. Knowledge of the operation of the equipment is assumed. Instruction manuals may be required with this service manual. For complete information on operation, refer to the Instruction Manual. -
Page 8: Standard Tools And Test Equipment
* Mains supply voltage fluctuations: up to ±10% of the nominal voltage * Installation category II * Pollution degree: 2 * Operability is assured at ambient temperatures between 5° C to 40° C ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual... -
Page 9: Specifications
CHAPTER 1 GETTING STARTED SPECIFICATIONS TABLE 1-1. SPECIFICATIONS ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... -
Page 10: Compliances
CHAPTER 1 GETTING STARTED COMPLIANCES. ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual... -
Page 11: Buffer Groups
CHAPTER 1 GETTING STARTED 1.6 BUFFER GROUPS. STARTER 5000 automatically correct for the temperature dependence of the buffer group pH value given in the following tables. Please choose the buffer group you want before calibration. JJG119 ((Ref. 25° C, 0.01pH) Temp °... - Page 12 1.672 3.999 6.900 9.276 1.675 4.002 6.881 9.225 1.679 4.008 6.865 9.180 1.683 4.015 6.853 9.139 1.688 4.024 6.844 9.102 1.694 4.035 6.838 9.068 1.700 4.047 6.834 9.038 1.707 4.060 6.833 9.011 ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual...
- Page 13 1.680 4.003 6.864 9.182 12.460 1.684 4.010 6.852 9.142 12.292 1.688 4.019 6.844 9.105 12.130 1.694 4.029 6.838 9.072 11.975 1.700 4.042 6.834 9.042 11.828 1.706 4.055 6.833 9.015 11.697 ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com...
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Page 14: Controls
1.7.1 Turn ON and OFF the Meter. To turn off the meter, please tap the turn-off button to enter the turn-off interface, then to turn-off the meter or tap to go back to main interface again. ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual... -
Page 15: Icons
CHAPTER 1 GETTING STARTED 1.7.2 ICONS. Table 1-2. Icons. 1.7.3 SENSOR CONDITION ID. There Are 3 sensor conditions ID. ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... -
Page 16: Chapter 2 Diagnosis
AC adapter. If OK, proceed. Make sure appropriate AC Adapter is used. Bad connection from Adapter to equipment power Check power input connection. input. Defective main PCBA Replace main PCBA ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 17 End results are not Recalibrate the pH electrode and Inconsistent pH reading. accurate. temperature electrode. Inconsistent temperature Use the correct buffer group during reading. calibration. Wrong buffer group is used during calibration ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual...
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Page 18: Proper Connection Of Electrode With Meter
Never store the electrode in distilled water or dry! Otherwise the pH sensitive glass membrane will be affected which shortens the lifetime and the electrode must be reconditioned before use. ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... -
Page 19: Diaphragm Contamination Issue
The aging o the pH sensitive membrane and therefore the decrease of the H -sensitivity depends on the temperautre: ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual... -
Page 20: Symptoms For An Aged Electrode
Higher membrane resistance Slow response Decrease of slope Increase of offset Serial number: e.g. 1428001,it is manufactured at the 28th week of 2014. 1 or 2 year week 001-999 ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... -
Page 21: Preventive Maintenance
3.1 SERVICE STRATEGY All parts of the Starter 5000 are designed to be replaced rather than repaired. This includes the Main Printed Circuit Board (PCB) and LCD Touch Screen. For an illustrated list of replaceable parts, see Chapter 4. - Page 22 Figure 3-3. Picture on the Left shows the connector at Locked position. Picture on the Right shows the connector at Un-Locked position. 5. Replace any parts which are found defective. (Refer to Chapter 4). ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual...
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Page 23: Removing The Main Pcba
1. Locate and separate the 4 screws holding the main PCBA to the meter bottom housing as shown below. Figure 3-4. Location of the 4 screws holding the Main PCBA to the meter bottom housing. ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... -
Page 24: Removing The Lcd Touch Panel
Figure 3-5. Location of the 4 screws holding the LCD Panel screen to the meter top housing. Note: When installing back the LCD Touch screen makes sure the panel is free from any debris. LCD Touch screen with debris. ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual... -
Page 25: Removing The Protective Rubber Seal
1. Remove the two screws holding the protective rubber seal in place. (See Figure 3-6 and Figure 3-7) Figure 3-6. Location of the two screws holding the protective rubber seal in place. Figure 3-7. Protective rubber seal removed. ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com... - Page 26 In all cases where a part is replaced, the scale must be thoroughly checked after the replacement is made. The scale MUST meet the parameters of all applicable specifications in this manual. If further technical information is needed, please contact your local Ohaus office, or: Ohaus Corporation, www.ohaus.com 7 Campus Drive...
- Page 27 CHAPTER 4 PARTS LISTS & DIAGRAMS 4.1 Drawings and Parts Lists Figure 4-1. ST5000 pH Meter Bench Top. ST5000 Bench Top pH Meter Ohaus Corporation www.ohaus.com Service Manual...
- Page 28 SP, Housing Bottom Kit, ST5000 30134488 SP, LCD Touch Screen, ST5000 30134489 SP, PCBA, ST5000 30059316 SP Cable Adapter RS232 F-M SF40A Note: see specific parts lists through your local Ohaus office, or Ohaus.com. ST5000 Bench Top pH Meter Service Manual Ohaus Corporation www.ohaus.com...
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Page 29: Appendix A St5000 Service Mode
Figure A.1. Select System Setting. Figure A.2. Select Service Menu. Figure A.3 Service Menu Enter Password. 2. Once you selected Service Menu the ST5000 screen will ask you to Enter Service Password. ST5000 Bench Top pH Meter Service Manual A-1 Ohaus Corporation www.ohaus.com... -
Page 30: Service Password
Figure A.4. ST5000 Password Generator. 3. Key in the Password into Service Menu window as shown in Figure 2.2 and press Enter you will see the below screen. Figure A.5 Service Menu Screen. Ohaus Corporation www.ohaus.com ST5000 Bench Top pH Meter Service Manual... -
Page 31: Options In Service Mode
Temperature Calibration- Delete previous Temperature Calibration record and enter new Calibrated Temperature value in meter. c) Touchpad Calibration- Calibrate the Touchpad. d) Empty All Electrode Data- Erase all previous electrode data. ST5000 Bench Top pH Meter Service Manual A-3 Ohaus Corporation www.ohaus.com... - Page 32 ST5000. 1. To update the software in the ST5000 pH meter. Note: Make sure OHAUS Service & Repair Tools is version V2.1.1.5 or later which is available for download in DMX under 'Service Software' folder. Software Installation and Software Selection: Install the software on a Personal Computer running Microsoft Windows NT 4.0 or later, or...
- Page 33 B.3 Update the Software in ST5000: 1. Connect the ST5000 pH meter to your computer (remember to used part 30059316). 2. Click on Next. 3. Service Tool will launch the Download AppProgramer as shown below. Ohaus Corporation www.ohaus.com ST5000 Bench Top pH Meter Service Manual...
- Page 34 APPENDIX B SOFTWARE SERVICE TOOL INSTRUCTIONS Figure B-3. Download AppProgramer. ST5000 Bench Top pH Meter Service Manual B-3 Ohaus Corporation www.ohaus.com...
- Page 35 Figure B-4. COM Port Configuration. 2. Image File Selection is Pre-Fix at file type *.hex. After that you need to browse where you store the ST5000 *.hex image file. Figure B-5. Image File Selection. Ohaus Corporation www.ohaus.com ST5000 Bench Top pH Meter Service Manual...
- Page 36 3. After selected the appropriate *.hex image file click on Start the progress bar will show you the progress of the software download in percentage. Figure B-6. Progress. 4. The status window will show you the content been downloaded. Figure B.7. Status. ST5000 Bench Top pH Meter Service Manual B-5 Ohaus Corporation www.ohaus.com...
- Page 37 APPENDIX B SOFTWARE SERVICE TOOL INSTRUCTIONS Figure B.8. Software Downloading in Progress. Ohaus Corporation www.ohaus.com ST5000 Bench Top pH Meter Service Manual...
- Page 38 5. Click the top right hand cross to close the app after software download is completed and return back to Service & Repair Tool Function Selection. Figure B.10. Closing the Application. ST5000 Bench Top pH Meter Service Manual B-7 Ohaus Corporation www.ohaus.com...
- Page 40 *30134771A* P/N 30134771A SERVICE MANUAL: ST5000 BENCH TOP pH METER...
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