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OHAUS STARTER 5000 Скачать руководство пользователя страница 3

STARTER 5000

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.

Material in this manual is subject to change.

© Copyright 2014 Ohaus Corporation, all rights reserved.
® Registered trademark of Ohaus Corporation.

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Содержание STARTER 5000

Страница 1: ...STARTER 5000 BENCH TOP pH METER SERVICE MANUAL Ohaus Corporation 7 Campus Drive Suite 310 Parsippany NJ 07054 973 377 9000 ...

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Страница 3: ...te 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 Material in this manual is subject to change Copyright 2014 Ohaus Corporation all rights reserved Registered trademark of Ohaus Corporation ...

Страница 4: ......

Страница 5: ...ter 2 3 2 5 pH Electrodes Preparation Before Calibration or Measurement 2 3 2 6 Storage the pH Electrode 2 3 2 7 Diaphragm Contamination Issue 2 4 2 8 Reconditioning of the Dry Glass Membrane 2 4 2 9 Lifetime of an Electrode 2 4 2 10 Symptoms for an Aged Electrode 2 5 CHAPTER 3 PREVENTIVE MAINTENANCE 3 Preventive Maintenance 3 1 3 1 Service Strategy 3 1 3 2 Opening the Meter 3 1 3 3 Separating the...

Страница 6: ...e No 1 1 Controls 1 8 3 1 Screws That Securing the Housing 3 1 3 2 Connection between LCD Panel with Bottom Housing 3 2 3 3 Film Cable Connection 3 2 3 4 Screws Holding the Main PCBA with Bottom Housing 3 3 3 5 Screws Holding the LCD Panel to Top Housing 3 4 3 6 Screws Holding the Protective Rubber Seal 3 5 3 7 Protective Rubber Seal Removed 3 5 4 1 ST5000 pH Meter Bench Top 4 2 A 1 Select System ...

Страница 7: ...ps and equipment controls Chapter 2 Diagnosis Contains Preliminary checks troubleshooting tables Proper handling of electrode pH electrode preparation before calibration and measurement storage of pH electrodes diaphragm contamination issue reconditioning of the dry glass electrode life span of an electrode and symptoms for an aged electrode Chapter 3 Preventive Maintenance Contains information on...

Страница 8: ...es 1 3 SERVICE STRATEGY The repair method for the ST5000 Table Top pH Meter available repair parts are listed in Table 4 1 1 4 SPECIFICATIONS Specifications Ambient conditions Indoor use only Altitude Up to 2000 m Specified Temperature range 5 C to 40 C Humidity maximum relative humidity 80 for temperatures up to 30 C decreasing linearly to 50 relative humidity at 40 C Mains supply voltage fluctua...

Страница 9: ...CHAPTER 1 GETTING STARTED ST5000 Bench Top pH Meter Service Manual 1 3 Ohaus Corporation www ohaus com 1 4 SPECIFICATIONS TABLE 1 1 SPECIFICATIONS ...

Страница 10: ...CHAPTER 1 GETTING STARTED Ohaus Corporation www ohaus com 1 4 ST5000 Bench Top pH Meter Service Manual 1 5 COMPLIANCES ...

Страница 11: ...69 4 02 6 84 9 11 12 13 40 1 69 4 03 6 84 9 07 11 98 45 1 70 4 04 6 83 9 04 11 83 50 1 71 4 06 6 83 9 02 11 70 US standard Ref 25 C Temp C 1 68 4 01 7 00 10 01 5 1 67 4 01 7 09 10 25 10 1 67 4 00 7 06 10 18 15 1 67 4 00 7 04 10 12 20 1 68 4 00 7 02 10 06 25 1 68 4 01 7 00 10 01 30 1 68 4 01 6 99 9 97 35 1 69 4 02 6 98 9 93 40 1 69 4 03 6 97 9 89 45 1 70 4 05 6 97 9 86 50 1 71 4 06 6 96 9 83 Europe...

Страница 12: ...DIN 19267 Ref 25 C Temp C 1 09 4 65 6 79 9 23 12 75 5 1 08 4 67 6 87 9 43 13 63 10 1 09 4 66 6 84 9 37 13 37 15 1 09 4 66 6 82 9 32 13 16 20 1 09 4 65 6 80 9 27 12 96 25 1 09 4 65 6 79 9 23 12 75 30 1 10 4 65 6 78 9 18 12 61 35 1 10 4 65 6 77 9 13 12 45 40 1 10 4 66 6 76 9 09 12 29 45 1 10 4 67 6 76 9 04 12 09 50 1 11 4 68 6 76 9 00 11 98 JIS Z 8802 Ref 25 C Temp C 1 679 4 008 6 865 9 180 5 1 668 ...

Страница 13: ...853 9 144 12 289 35 1 691 4 026 6 845 9 110 12 133 40 1 697 4 036 6 837 9 076 11 984 45 1 704 4 049 6 834 9 046 11 841 50 1 712 4 064 6 833 9 018 11 705 JJG119 Ref 25 C 0 001pH Temp C 1 680 4 003 6 864 9 182 12460 5 1 669 3 999 6 949 9 391 13 210 10 1 671 3 996 6 921 9 330 13 011 15 1 673 3 996 6 898 9 276 12 820 20 1 676 3 998 6 879 9 226 12 637 25 1 680 4 003 6 864 9 182 12 460 30 1 684 4 010 6 ...

Страница 14: ...ST5000 Bench Top pH Meter Service Manual 1 7 CONTROLS Figure 1 1 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 tap to turn off the meter or tap to go back to main interface again ...

Страница 15: ...CHAPTER 1 GETTING STARTED ST5000 Bench Top pH Meter Service Manual 1 9 Ohaus Corporation www ohaus com 1 7 2 ICONS Table 1 2 Icons 1 7 3 SENSOR CONDITION ID There Are 3 sensor conditions ID ...

Страница 16: ...he case where the equipment will not power up check the AC adapter 2 3 TROUBLESHOOTING TABLES Troubleshooting tables 2 1 through 2 2 identifies actual types of problems that could be encountered with the equipment TABLE 2 1 EQUIPMENT WILL NOT TURN ON WITH AC ADAPTER SYMPTOM PROBABLE CAUSE REMEDY Unit will not turn on with AC adapter supplied Adapter defective Bad connection from Adapter to equipme...

Страница 17: ...nection Re calibrate Touch Panel A 4 Check film cable connection from main PCBA to LCD screen Check film cable connection from touch panel to LCD screen TABLE 2 3 MEASURING RESULTS INCONSISTANT PROBABLE CAUSE REMEDY End results are not accurate Inconsistent pH reading Inconsistent temperature reading Wrong buffer group is used during calibration Recalibrate the pH electrode and temperature electro...

Страница 18: ... electrostatic charge Carefully dab the electrode dry Then you can calibrate the electrode and start measurement Things to consider when calibrate or measure 1 Electrolyte level must be higher than in the sample solution or buffer Otherwise the sample flows into the reference system wrong results Approx 3 cm higher than sample level 2 Stirring often not reproducible instable signals because of ins...

Страница 19: ...ionic samples distilled water ultrapure water solutions with high salt concentration non aqueous solutions Cleaning the diaphragm blocked with AgCl with concentrated ammonia blocked with Ag2S with 8 thiourea in 0 1 molar HCl blocked with proteins with 5 pepsin in 0 1 molar HCl other contaminations in ultrasonic bath with water or 0 1 molar HCl Or just replace with a new one 2 8 RECONDITIONING OF T...

Страница 20: ...ual 2 5 Ohaus Corporation www ohaus com 2 10 SYMPTOMS FOR AN AGED ELECTODE 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 X Y WW SSS 1 or 2 year week 001 999 ...

Страница 21: ... Main Printed Circuit Board PCB and LCD Touch Screen For an illustrated list of replaceable parts see Chapter 4 3 2 OPENING THE METER Use these procedures in order to replace the defective parts Chapter 4 3 3 Separating the Top and Bottom Housing Common hand tools are sufficient to disassemble the Starter 5000 meter Turn the meter off and unplug the power cord before you begin 1 Turn the meter ove...

Страница 22: ...lose to each other so that the cable is not strained See Figure 3 2 4 Removing the film cable by tilting up the film cable connector as shown below See Figure 3 3 5 Replace any parts which are found defective Refer to Chapter 4 Figure 3 2 Connection marked with yellow circles connecting LCD Panel with Main PCBA Figure 3 3 Picture on the Left shows the connector at Locked position Picture on the Ri...

Страница 23: ...ce Manual 3 3 Ohaus Corporation www ohaus com 3 4 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 ...

Страница 24: ...Touch Screen Panel 1 Locate the 4 screws holding the LCD touch screen panel to the meter top housing as shown below 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 ...

Страница 25: ...oration www ohaus com 3 6 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 ...

Страница 26: ... equipment in the field NOTE 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 Suite 310 Parsippany NJ 07054 USA Tel 973 377 9000 ...

Страница 27: ...CHAPTER 4 PARTS LISTS DIAGRAMS Ohaus Corporation www ohaus com 4 2 ST5000 Bench Top pH Meter Service Manual 4 1 Drawings and Parts Lists Figure 4 1 ST5000 pH Meter Bench Top ...

Страница 28: ...5000 pH Meter Bench Top Drawing Item Part Number Description 1 30134486 SP Housing Top Kit ST5000 2 30134487 SP Housing Bottom Kit ST5000 3 30134488 SP LCD Touch Screen ST5000 4 30134489 SP PCBA ST5000 NS 30059316 SP Cable Adapter RS232 F M SF40A Note see specific parts lists through your local Ohaus office or Ohaus com ...

Страница 29: ... Calibration Empty All Electrode Data Note Before entering ST5000 Service Mode and executing any option kindly read and understand the instructions below A 2 Entering to Service Mode 1 Proceed to System Setting go down the option and select Service Menu 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...

Страница 30: ...n the ST5000 Colum C key in the Month shown on the ST5000 Colum D key in the Date Day shown on the ST5000 Colum E key in the Hour shown on the ST5000 without the minutes Colum F No need to key in any information and DO NOT change the information as pre entered by the software itself Once you press the keyboard Enter key the software will generate the Password in Colum G Figure A 4 ST5000 Password ...

Страница 31: ... a mV Calibration Delete previous mV Calibration record and enter new Calibrated mV value in meter b 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 ...

Страница 32: ... 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 B 1 Software Installation and Software Selection Install the software on a Personal Computer running Microsoft Windows NT 4 0 or later or Microsoft Windows 98 or later Insert the CD and run Setup exe After installation run the program Service Repair Too...

Страница 33: ...ual B 2 Product Selection Select the appropriate product that you wish to service and click Next Figure B 2 Product Selection 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 ...

Страница 34: ...APPENDIX B SOFTWARE SERVICE TOOL INSTRUCTIONS ST5000 Bench Top pH Meter Service Manual B 3 Ohaus Corporation www ohaus com Figure B 3 Download AppProgramer ...

Страница 35: ...ou will need to set the Com Port and Baud Rate After that click on COM Port Testing to test the communication between computer with ST5000 Remember both Service Tools and ST5000 should have the same Baud Rate setting 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 Sele...

Страница 36: ...ual B 5 Ohaus Corporation www ohaus com 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 ...

Страница 37: ...APPENDIX B SOFTWARE SERVICE TOOL INSTRUCTIONS Ohaus Corporation www ohaus com B 6 ST5000 Bench Top pH Meter Service Manual Figure B 8 Software Downloading in Progress ...

Страница 38: ...e Manual B 7 Ohaus Corporation www ohaus com Figure B 9 Software Downloading Completed Successfully 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 ...

Страница 39: ......

Страница 40: ... 30134771A P N 30134771A SERVICE MANUAL ST5000 BENCH TOP pH METER ...

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