OHAUS Adventurer AX124/E Service Manual Download Page 31

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CHAPTER 3 MAINTENANCE PROCEDURES

Adven

turer ™ Balances Service Manual 23 Ohaus Corporation www.ohaus.com

3. Remove the two screws securing the draft shield housing to the balance.

Figure 3-5 Analytical Draft Sheild screws location.

Figure 3-6 Adventurer Analytical Draft Sheid Assembly.

Figure 3-7 Adventurer Analytical Balance only.

Summary of Contents for Adventurer AX124/E

Page 1: ...AdventurerTM Balances Service Manual...

Page 2: ......

Page 3: ...OCEDURES 21 3 1 Preventive Maintenance 21 3 1 1 Preventive Maintenance Checklist 21 3 2 Opening the Balance 21 3 2 1 Removing Adventurer Analytical Housing 22 3 3 Replacing Adventurer Load Cell 29 3 3...

Page 4: ...ll 2 and 1 Decimal ExCal Model 77 5 11 Adventurer Precision AX5202 and AX8201 InCal Balances 79 5 12 Adventurer Precision AX8201 ExCal Balances 81 APPENDIX A SERVICE MENU 83 A 1 Entering the Service M...

Page 5: ...Load Cell 2 and 1 Decimal InCal Model 74 5 9 Adventurer Precision 2 and 1 Decimal ExCal Balances 76 5 11 Adventurer Precision AX5202 and AX8201 InCal Balances 80 5 12 Adventurer Precision AX8201 ExCa...

Page 6: ...housing 33 3 37 Two cables attached to main PCBA 34 3 38 Two cables removed from main PCBA 34 3 39 Location of the 3 screws securing the Main PCBA to the bottom housing 34 3 40 Main PCBA removed from...

Page 7: ...and Precision balance Mass Placement Locations for Off Center Load Test 52 4 3 Off Center Load Adjustments on Adventurer Precision Balance 53 4 4 Off Center Load Adjustment screw holes on Adventure Pr...

Page 8: ...rvice Calibration Data 91 A 15 Content of Service Calibration Data example 91 B 1 Software Selection 92 B 2 Product Selection 93 B 3 Restore EEPROM 94 B 4 Write Image File 94 B 5 COM Port Configuratio...

Page 9: ...pecifications for temperature environmental requirements See specifications for temperature ranges of the various models Must be free of vibrations such as fork lift trucks close by large motors etc M...

Page 10: ...al momme Newton ounce pennyweight pound Tael Hong Kong Tael Singapore Tael Taiwan tical tola troy ounce custom 1 Applications Weighing Parts Counting Percent Weighing Check Weighing Animal Weighing Fo...

Page 11: ...ay Hold Stabilization time typical 2 seconds Sensitivity Temperature Drift PPM K 3 Typical Operating Range USP u 0 1 k 2 2 0 g 220 g 2 0 g 220 g 2 0 g 420 g 2 0 g 420 g 2 0 g 520 g 2 0 g 520 g Optimal...

Page 12: ...Stabilization time typical 1 5 seconds Sensitivity Temperature Drift PPM K 3 1 9 Typical Operating Range USP u 0 1 k 2 20 0 g 620 g 20 0 g 620 g 20 0 g 1520 g 20 0 g 1520 g 20 0 g 2200 g 20 0 g 2200...

Page 13: ...nation Totalization Display Hold Stabilization time typical 1 5 seconds Sensitivity Temperature Drift PPM K 9 Typical Operating Range USP u 0 1 k 2 200 0 g 4200 g 200 0 g 4200 g 200 0 g 8200 g 200 0 g...

Page 14: ...alization Display Hold Stabilization time typical 1 5 seconds Sensitivity Temperature Drift PPM K 3 Typical Operating Range USP u 0 1 k 2 20 0 g 420 g 20 0 g 420 g 20 0 g 820 g 20 0 g 820 g 200 0 g 22...

Page 15: ...y Hold Stabilization time typical 3 seconds 2 seconds 1 5 seconds Sensitivity Temperature Drift PPM K 1 5 3 3 1 9 Typical Operating Range USP u 0 1 k 2 0 20 g 120 g 0 20 g 220 g 0 20 g 320 g 2 0 g 220...

Page 16: ...ent Weighing Check Weighing Animal Weighing Formulation Density Determination Totalization Display Hold Stabilization time typical 3 seconds 2 seconds 1 5 seconds Sensitivity Temperature Drift PPM K 1...

Page 17: ...ange 10 C to 30 C Humidity maximum relative humidity 80 for temperatures up to 30 C decreasing linearly to 50 relative humidity at 40 C Mains supply voltage fluctuations up to 10 of the nominal voltag...

Page 18: ...l the equipment s functions CONTROLS Figure 1 1 Adventurer Controls Table 1 4 Adventurer Controls Button Action Short Press if powered Off Turns on the scale Long Press if powered On Turns off the sca...

Page 19: ...ar Zero Press Zero to zero the balance 1 6 3 1 Menu and Screen Navigation Touch Menu to open the menu list Calibration Touch to view calibration options Balance Setup Touch to view balance settings We...

Page 20: ...A mass placed on the Pan applies a downward force to the Load Flexure by means of the Hanger The Load Flexure moves one end of the Ratio Beam which pivots moving the Force Coil up into the air gap of...

Page 21: ...ters compatible with Adventurer Balances are available from Ohaus See Section 9 Connect a straight through serial cable to the scale s RS232 port 1 8 2 Output Format The Result Data and G N T data is...

Page 22: ...me as pressing Zero Key T Same as pressing Tare Key xT Establish a preset Tare value in displayed unit X preset tare value Sending 0T clears tare if allowed PT Prints Tare weight stored in memory ON B...

Page 23: ...d unit X preset tare value Sending 0T clears tare if allowed PT Prints Tare weight stored in memory ON Brings out of Standby OFF Goes to Standby C Begin Span Calibration IC Begin internal Calibration...

Page 24: ...computer to the balance the application program sends a command to the virtual port as if it were an RS232 port The computer then directs the command from the virtual port to the computers USB connec...

Page 25: ...gs of the Device Manager utility found in the Windows Control Panel 1 14 USB Input The balance will respond to various commands sent via the interface adapter Terminate the following commands when wit...

Page 26: ...if applicable It should move up and down smoothly 7 Inspect the Load Cell components Be sure they are clean and that no Flexures are bent If they are they must be replaced 2 2 Diagnostic Guide Table...

Page 27: ...re zeroed before weighing Move balance to suitable location ensure that balance is level Calibrate the balance Press O T with no weight on the pan then weigh item Balance can be turned on but will no...

Page 28: ...able to access a particular mode Mode not enabled in menu Busy tare zero printing waiting for a stable weight Wait until completion Low Reference weight Reference weight too small The weight on the pa...

Page 29: ...wing temperature stabilization allow an additional hour after connecting power to the balance for the balance to stabilize 3 1 1 Preventive Maintenance Checklist The balance should be inspected and ch...

Page 30: ...you begin Preliminary Steps For a balance with a Draft Shield 1 Remove the weighing pan and wind ring and set aside Figure 3 1 Analytical Weighing Pan and Wind Ring attach Figure 3 2 Analytical Weighi...

Page 31: ...nual 23 Ohaus Corporation www ohaus com 3 Remove the two screws securing the draft shield housing to the balance Figure 3 5 Analytical Draft Sheild screws location Figure 3 6 Adventurer Analytical Dra...

Page 32: ...p housing Then slide the top housing upfront as shown below Figure 3 10 Sliding Adventurer Top Housing upfront NOTE Now you can gently lift the top housing from the bottom housing but you have to be c...

Page 33: ...ble by unfasten the connector as shown in below picture Figure 3 12 Keypad Membrane Lock and Unlock position Figure 3 13 Keypad membrane cable removed 6 Remove the TFT LCD cable by lifting the connect...

Page 34: ...er removing both the keypad membrane and TFT LCD film cables you need to detach a latch located at the right front of the balance After that you can securely remove the top housing away from the botto...

Page 35: ...27 Ohaus Corporation www ohaus com Figure 3 18 Adventurer balance bottom housing with top housing removed 3 2 2 Removing Adventurer Precision Housing 1 Remove the balance weiging pan and securely set...

Page 36: ...Ohaus Corporation www ohaus com 28 Adventurer Balances Service Manual Figure 3 20 Adventurer Precision balance with weighing pan removed 2 Remove the balance Pan Support Figure 3 21 Adventurer Precis...

Page 37: ...the Windring to the balance top housing Then follow the instrcution of removing Adventurer housing from page 3 4 3 3 Replacing Adventurer Load Cell 3 3 1 Replacing Adventurer Type conventional MFR lo...

Page 38: ...lances Service Manual 2 Locate and remove the 3 screws securing the Conventional MFR Cell to the bottom housing Figure 3 25 Location of the 3 screws holding the load cell to balance bottom housing Fig...

Page 39: ...pe load cell 1 Remove the balance load cell metal cover and you will see the Block Style load cell Figure 3 27 Adventurer Analytical Load cell metal cover removed 2 Locate and remove the 2 cables conn...

Page 40: ...ing the cell to the balance bottom housing Figure 3 31 Block Style load cell removed Notice the difference of the bottom housing 3 3 3 Replacing Adventurer Type Strain Gage load cell Replacing Adventu...

Page 41: ...cell to the balance main PCBA as shown below Figure 3 34 SG Load cell cable to main PCBA removed 5 Locate and remove the 4 screws securing the Strain gage Load Cell to the bottom housing Figure 3 35 L...

Page 42: ...connected from the balance communication PCBA and AC inlet to main PCBA as shown below Figure 3 37 Two cables attached to main PCBA Figure 3 38 Two cables removed from main PCBA 2 Locate the 3 screws...

Page 43: ...om the back of the housing and remove the cable connecting from the communication PCBA to the main PCBA after that remove the two screws holding the communication PCBA to the balance bottom housing Fi...

Page 44: ...screws and washers for Adventure Precision balances Readability 0 001g PN 923345 Figure 3 44 Service Fixture screws and washers for Adventurer Precision balances Readability 0 01g to 0 1g PN 923389 1...

Page 45: ...t secure each Ratio Beam Flexure and remove the Flexure 5 Remove the four screws and washers on the Top Flexure Arm and remove it Don t loosen the screws that secure the Flexure to the Flexure Arm 6 T...

Page 46: ...he Ratio Beam is to be removed unsolder the 3 wire ribbon cable from the Contact Board See Figure 3 51 Figure 3 51 Contact Board with ribbon cable Figure 3 52 Fine wires connected to the Contact Board...

Page 47: ...screws in the Sideways Motion Stop Plate and lift it off See Figure 3 56 Figure 3 55 Two screws secure Magnet Half Figure 3 56 Sideways Motion Stop Plate 18 Note the position of the opening and then t...

Page 48: ...the Position Sensor Board in place The two on the right have washers The one on the left doesn t 4 Remove the Position Sensor Board and install the replacement Insert all screws previously removed Tig...

Page 49: ...remaining screws to secure the Load Cell Check again that an Over Load message is not displayed If there is an IDNR error fix this error first and then check that an Over Load message is not displaye...

Page 50: ...erify that the balance meets all specifications See Chapter 1 Perform all tests See Chapter 4 3 6 4 Load Cell Reassembly Precision Balances Before re assembly take the following maintenance steps Be s...

Page 51: ...eam is centered in the hole in the Stop Plate Then insert and tighten the two screws and washers See Figure 3 67 6 Position the Temperature Sensor wires so they clear the opening on the bottom of the...

Page 52: ...be re soldered in the same positions as pictured in Figure 3 70 white on left red on right The two wires on the top connect to the Temperature Sensor Their order is not important Figure 3 70 Solder p...

Page 53: ...The Position Sensor Board contains an Optical Sensor which must be positioned in the Ratio Beam s center of travel for the balance to function properly 18 Adjust the vertical position of the Position...

Page 54: ...the InCal weight where the InCal mechanism is located at the bottom of the InCal weight Figure 3 76 Location of the 4 screws holding the weight protection metal plate 1 Locate and remove the 4 screws...

Page 55: ...MAINTENANCE PROCEDURES Adventurer Balances Service Manual 47 Ohaus Corporation www ohaus com Figure 3 78 Weight retainer removed Figure 3 79 Picture showing InCal weight removed and showing the InCal...

Page 56: ...be a weighing arm assembly as shown below Remember to hold the side of the load cell structure and do not apply any pressure on the top and bottom arm assembly when holding the load cell Figure 3 80...

Page 57: ...surface 4 1 Test Masses Required The masses required to test the Ohaus Adventurer balances must meet the requirements of ASTM Class 1 or OIML E1 Tolerance The mass values are listed in Table 4 1 Table...

Page 58: ...recision Analytical Balances Accurate performance of the Adventure balances is determined by a series of four performance tests The displayed readings are compared with the tolerances listed in Tables...

Page 59: ...r each model listed in Tolerance Tables 4 1 and 4 2 1 Tare the balance The reading on the display should be 0g 2 Select a mass weighing near the maximum capacity of the balance and place it on the cen...

Page 60: ...t Locations for Off Center Load Test 1 Place a mass weighing half of the balance s capacity in the center of the Pan 2 Press the On Off button to return the reading to zero 3 Move the mass halfway to...

Page 61: ...0g Move the mass to the front back left and right edges of the Pan Note the displayed values 7 Correct any errors by turning Corner load Adjusting screws as shown in Figures 4 3 and 4 4 Use a nut driv...

Page 62: ...ay 1 Set Auto Zero to Off in Menu Setup 2 Open the balance See Section 3 1 3 Reinstall the Pan 4 Plug the power cord into the balance and turn it on 5 Place a mass that weighs the balance s full capac...

Page 63: ...Set the Filter level to medium or the center of its range B Set the AZT Auto Zero Tracking to 5d or its lowest setting Do not turn it off C Set the instrument to display the same units as the performa...

Page 64: ...eading 3 Reading 4 Reading 5 Reading 6 Reading 7 Reading 8 Reading 9 Reading 10 10 Mean ________ 7 Calculate the Delta for each reading and record in the work sheet Delta Reading Mean 8 Calculate the...

Page 65: ...es not disregard the reading press ZERO to re zero the display and repeat the process 4 Place a mass equal to of the full scale capacity on the platform and press ZERO 5 Add the Reference Mass to the...

Page 66: ...ce Weight added at full scale capacity ________________ Calculate Differences Reading 1 Reading 1 Reading 2 2 ________________ Reading 2 Reading 2 Reading 3 2 ________________ Reading 3 Reading 3 Read...

Page 67: ...nturer AX series balances The exploded view drawings are designed to identify the parts which can be serviced on the balance in the field There are many Adventurer AX models that have the same parts I...

Page 68: ...ances Service Manual 5 1 Adventurer Draft Shield Figure 5 1 Adventurer Draft Shield Table 5 1 Adventurer Draft shield Drawing Item Part Number Description 1 30111789 SP Assembly Top Frame AX 2 3011178...

Page 69: ...STS DIAGRAMS Adventurer Balances Service Manual 61 Ohaus Corporation www ohaus com 5 2 Adventurer Analytical Type Housing Parts 4 decimal balances Figure 5 2 Adventurer Analytical Type Housing Parts 4...

Page 70: ...0111769 SP Keypad CN AX 5 30111770 SP Keypad JP AX 5 30111771 SP Keypad RU AX 5 30111803 SP Keypad GRAIN AX 6 30111772 SP LCD 4 3 with cable TP AX 6 30111773 SP LCD 4 3 with cable TP JP AX 7 30111778...

Page 71: ...HAPTER 5 PARTS LISTS DIAGRAMS Adventurer Balances Service Manual 63 Ohaus Corporation www ohaus com 5 3 Adventurer Precision 3 Decimal InCal Models Figure 5 3 Adventurer Precision 3 Decimal InCal Mode...

Page 72: ...30111768 SP Keypad EN AX 4 30111769 SP Keypad CN AX 4 30111770 SP Keypad JP AX 4 30111771 SP Keypad RU AX 4 30111803 SP Keypad GRAIN AX 5 30111772 SP LCD 4 3 with cable TP AX 5 30111773 SP LCD 4 3 wit...

Page 73: ...ISTS DIAGRAMS Adventurer Balances Service Manual 65 Ohaus Corporation www ohaus com 5 4 Adventurer Precision Conventional MFR Load Cell 3 Decimal InCal Model Figure 5 4 Conventional MFR Load Cell 3 De...

Page 74: ...ng Item Part Number Description 1 83020829 SP Flexure Arm Assembly Pre PA AX 2 12105331 Ratio Beam w Coil ARxx3x ARRV70 AX 3 Decimal 3 30111804 SP PCBA Alli LC AX Precision 4 12123458 SP Copper 4kg li...

Page 75: ...HAPTER 5 PARTS LISTS DIAGRAMS Adventurer Balances Service Manual 67 Ohaus Corporation www ohaus com 5 5 Adventurer Precision 3 Decimal Excal Model Figure 5 5 Precision Adventurer 3 Decimal EXCal Model...

Page 76: ...30111774 SP Housing Top DS AX 4 30111768 SP Keypad EN AX 4 30111769 SP Keypad CN AX 4 30111770 SP Keypad JP AX 4 30111771 SP Keypad RU AX 4 30111803 SP Keypad GRAIN AX 5 30111772 SP LCD 4 3 with cable...

Page 77: ...ISTS DIAGRAMS Adventurer Balances Service Manual 69 Ohaus Corporation www ohaus com 5 6 Adventurer Precision Conventional MFR Load Cell 3 Decimal ExCal Model Figure 5 6 Conventional MFR Load Cell 3 De...

Page 78: ...ng Item Part Number Description 1 83020829 SP Flexure Arm Assembly Pre PA AX 2 12105331 Ratio Beam w Coil ARxx3x ARRV70 AX 3 Decimal 3 30111804 SP PCBA Alli LC AX Precision 4 12123458 SP Copper 4kg li...

Page 79: ...PARTS LISTS DIAGRAMS Adventurer Balances Service Manual 71 Ohaus Corporation www ohaus com 5 7 Adventurer Precision 2 and 1 Decimal Incal Balances Figure 5 7 Adventurer Precision 2 and 1 Decimal InCal...

Page 80: ...AX 5 30111775 SP Housing Top W O DS AX 6 30111768 SP Keypad EN AX 6 30111769 SP Keypad CN AX 6 30111770 SP Keypad JP AX 6 30111771 SP Keypad RU AX 6 30111803 SP Keypad GRAIN AX 7 30111772 SP LCD 4 3...

Page 81: ...IAGRAMS Adventurer Balances Service Manual 73 Ohaus Corporation www ohaus com 5 8 Adventurer Precision Conventional MFR Load Cell 2 and 1 Decimal Incal Model Figure 5 8 Conventional MFR Load Cell 2 an...

Page 82: ...Item Part Number Description 1 83020829 SP Flexure Arm Assembly Pre PA AX 2 12105332 Ratio Beam 400G Loadcell Adv PA AX 2 1 Decimal 3 30111804 SP PCBA Alli LC AX Precision 4 12123458 SP Copper 4kg li...

Page 83: ...PARTS LISTS DIAGRAMS Adventurer Balances Service Manual 75 Ohaus Corporation www ohaus com 5 9 Adventurer Precision 2 and 1 Decimal ExCal Balances Figure 5 9 Precision Adventurer 2 and 1 Decimal ExCal...

Page 84: ...X 4 30111795 SP Wind Ring W O DS AX 5 30111775 SP Housing Top W O DS AX 6 30111768 SP Keypad EN AX 6 30111769 SP Keypad CN AX 6 30111770 SP Keypad JP AX 6 30111771 SP Keypad RU AX 6 30111803 SP Keypad...

Page 85: ...AGRAMS Adventurer Balances Service Manual 77 Ohaus Corporation www ohaus com 5 10 Adventurer Precision Conventional MFR Load Cell 2 and 1 Decimal ExCal Model Figure 5 10 Conventional MFR Load Cell 2 a...

Page 86: ...g Item Part Number Description 1 83020829 SP Flexure Arm Assembly Pre PA AX 2 12105332 Ratio Beam 400G Loadcell Adv PA AX 2 1 Decimal 3 30111804 SP PCBA Alli LC AX Precision 4 12123458 SP Copper 4kg l...

Page 87: ...TS LISTS DIAGRAMS Adventurer Balances Service Manual 79 Ohaus Corporation www ohaus com 5 11 Adventurer Precision AX5202 and AX8201 InCal Balances Figure 5 11 Adventurer Precision AX5202 and AX8201 In...

Page 88: ...DS AX 6 30111768 SP Keypad EN AX 6 30111769 SP Keypad CN AX 6 30111770 SP Keypad JP AX 6 30111771 SP Keypad RU AX 6 30111803 SP Keypad GRAIN AX 7 30111772 SP LCD 4 3 with cable TP AX 7 30111773 SP LCD...

Page 89: ...APTER 5 PARTS LISTS DIAGRAMS Adventurer Balances Service Manual 81 Ohaus Corporation www ohaus com 5 12 Adventurer Precision AX8201 ExCal Balances Figure 5 12 Adventurer Precision AX8201 ExCal Balance...

Page 90: ...AX 5 30111775 SP Housing Top W O DS AX 6 30111768 SP Keypad EN AX 6 30111769 SP Keypad CN AX 6 30111770 SP Keypad JP AX 6 30111771 SP Keypad RU AX 6 30111803 SP Keypad GRAIN AX 7 30111772 SP LCD 4 3...

Page 91: ...sub menus which allow authorized service personnel to perform factory calibrations A 1 Entering the Service Menu When balance is switch ON Press and Hold both the Tare key simultaneously for 30 secon...

Page 92: ...ntage of use of the A to D circuit The actual value is not as important as how it changes It should increase as the weight on the balance is increased The ramp display should remain constant without f...

Page 93: ...older of the flash driver Otherwise the balance will not be able to locate the bin file 1 Create an AX_FWUPD folder at the root folder of a flash driver Put following files into the folder Fig A 6 Ser...

Page 94: ...the software upgrade process will start After Software Upgrade re boot the balance A 4 Service 3 Point Linearity Calibration Fig A 7 Service 3 Point Linearity Calibration A three point linearization...

Page 95: ...show on the balance display to load and unload weights during this 3 Point Linearity Calibration A 5 Service 5 Point Linearity Calibration Fig A 8 Service 5 Point Linearity Calibration A five point l...

Page 96: ...nearity calibration Follow the sequence and weights show on the balance display to load and unload weights during this 5 Point Linearity Calibration NOTE If calibration fails ensure that the test area...

Page 97: ...Service span calibration allows a new zero and maximum setting using an external calibration weight A 8 Service Internal Calibration Fig A 11 Service Internal Calibration The internal calibration wei...

Page 98: ...rnal Repeatability Test The internal weight is used to determine the repeatability of the load cell The standard deviation is determined after 10 cycles of the internal weight A 10 Service Balance Inf...

Page 99: ...ervice Calibration Data Option will show Calibration Data been perform to balance Fig A 15 Content of Service Calibration Data example Calibration Data No Date Time Type Ref Wt Actual Wt Result 1 15 0...

Page 100: ...e Service Repair Tool is used for 5 purposes 6 To restore EEPROM data after the Position Sensor Board is replaced 7 To install a new Load Cell 8 To install a new Main Printed Circuit Board PCB 9 To up...

Page 101: ...alance 11 2 Model Number from the label on the back of the balance 11 3 IDNR Number just above the label on the back of the balance 11 4 The load cell serial number you need to open the balance and re...

Page 102: ...APPENDIX B SOFTWARE SERVICE REPAIR TOOL INSTRUCTIONS Ohaus Corporation www ohaus com 94 Adventurer Balances Service Manual Figure B 3 Restore EEPROM Figure B 4 Write Image File...

Page 103: ...d click Next Figure B 5 COM Port Configuration 2 Enter the balance s Serial Number and IDNR number 3 Enter the path to the image file or click the Browse button to locate the file 4 Click the Next but...

Page 104: ...abels each contain a model number followed by the IDNR number Carefully select the label that matches exactly the model number of the balance 9 Get the balance Image File from OHAUS by providing the b...

Page 105: ...ick the Start button 19 The software will indicate the download progress When complete disconnect the power from the back of the balance then re connect 20 Perform Service Calibrations see Appendix B...

Page 106: ...of the balance then re connect 9 Perform Service Calibrations see Appendix B Test the balance B 7 Update the Software in the Balance 1 Connect the Balance to your computer 2 Start the OHAUS Service T...

Page 107: ...your computer 2 Start the OHAUS Software Service Tool 3 Click on the tab labeled Diagnostics Figure B 12 Diagnostics Tab 4 To test communications click the Print button or enter an RS232 Command Stri...

Page 108: ...othly When the weight s is in the lowered position the display reading should be STABLE 1 Click on one of the InCal Weight Control buttons No Load or Total Load 2 Observe weight displayed on the balan...

Page 109: ......

Page 110: ...poration all rights reserved Registered trademark of Ohaus Corporation The information contained in this manual is believed to be accurate at the time of publication but Ohaus Corporation assumes no l...

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