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1. n 4 11 142 AS ORM IC NON an 4 13 zr ns ME eiii 4 13 AS 4 14 4 6 Testing the AC nanen rn nnn 4 15 4 7 WCRI Wi ro 4 15 CHAPTER 5 DRAWINGS AND PARTS LISTS UNE 1o 5 1 52 ag DD 5 3 APPENDIX A STANDARD CALIBRATION Ad Span E een 1 A 2 Linearity Calibration er E ooo ooo A 1 APPENDIX B SERVICE CALIBRATION BT I t 1 B 2 Entering the Service Menu B 1 B3 Ramp eoria eae ec ee B 1 28 D ES lecis mem n ee B 2 B 5 Span Calibration RTT T To oo B 2 APPENDIX C ADVENTURER PRO SERVICE TOOL INSTRUCTIONS C Software Service Tool Instructions eesesseseeeennn nennen nennen C 1 GI Restore EEPROM zes C 2 2 Replace a en er ea age C 3 To Update Software in the Balance nee nn e ueniet reddes C 4 LIST OF TABLES TABLE NO TITLE Page No 1 1 Adventurer AV Models Calibration Points 1 3 1 2 Adventurer AS Models Calibration Points 1 4 1 3 Adventurer AV Model Specifications 1 5 1 4 Adventurer AS Mode
2. 3 24 3 2 11 Unmounting the Load Cell from the Base Plate 3 25 2 2 12 Changing the Load Cell Board nes 3 26 3 2 13 Removing the Ratio Beam 3 28 8 2 14 Installing the Ratio Beam nenne ea 3 34 3 2 15 Vertical Stop Adjusiment n nee 3 37 TABLE OF CONTENTS Cont CHAPTER 4 TESTING Page No AA TESINI 4 1 4 1 1 Operation TeSt occ in alias 4 1 23 2 AV Models Segment Display Test nu tene sh rt ip e Eae no RUD none npe rp SEP dra bte tnnc 4 1 4 1 3 AS Models Segment Display 4 1 4 2 AV and AS Models Strain Gauge Performance Tests 4 2 LUUEEE 0 1 MIR cct 4 3 4 2 2 Off Center Load Test nie ee 4 3 1 2 3 IMG CUI Test users 4 4 4 2 4 Load Cell Adjustments Strain Gauge Models 4 5 4 3 Load Cell Performance Tests 00 cccecceeeeeeeeeeeeeeeeeeeaeeeeeeeeeeeeaaaeeeeeeeeeeeeaaees 4 8 DREXNEI c DAI oor 4 8 4 3 2 Checking the Off Center Load nee 4 8 4 3 3 Linearity Test ee een 4 9 4 3 4 Adjusting the MFR Load Cell Off Center 4 9 44 5232 Interface Test AV Models Only 4 11 4 4 1 Connecting the RS232 Interface
3. 3 28 Centering Pins Installation eda orare pa pn Roe t tue Ea ee 3 29 Loosening Ratio Beam TIUS nein ke 3 29 Ratio Beam Screws and Washers 3 30 Loosening Weight Arm NUTS ses 3 30 InCal Weight Arm Screws and Washers Removed 3 31 InCal Weight Arm Meu Ei etam UE 3 31 peris iiec m 3 31 Aluminum Sleeves ROmOoVBD coiere tabu them ee eu 3 32 Gentenng Pins Removed E RE ae 3 32 Vertical Adjustment Screw Positioning coucou ene 3 32 FIGURE 3 55 3 56 3 57 3 58 3 59 3 60 3 61 3 62 3 63 3 64 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 1 5 2 B 1 LIST OF ILLUSTRATIONS Cont TITLE Page No Removing th Halle Beat Up EE 3 33 Removing the Aluminum Sleeves osea or a aka EEE RE ERY ERR RUEDA E Ia n RU UG 3 33 Ratio Beam Weight Removed anreisen ee 3 34 Load Cell Critical Area niana ee 3 34 Becker MSORE 2 een an ee 3 35 Ratio Beam vane Slotted Area un 3 35 Adj sting Screw ae 3 36 Repositioning the Contact Board and SCreW ia ad 3 36 Test Connector Location 3 37 Area ET 3 37 LGB Full Display Tor Models AV nenne ae un rau 4 1 LCD Full Dis
4. Figure 3 53 Centering Pins Removed 11 Note the position of the Vertical Adjustment Screw Turn the Vertical Adjustment Screw so that the Ratio Beam can be removed Vertical Adjustment screw Figure 3 54 Vertical Adjustment Screw Positioning 3 32 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Cont 12 Carefully lift out the Ratio Beam as shown in Figure 3 55 Ratio Beam Ratio Beam Removed Figure 3 55 Removing the Ratio Beam 12 Remove the Aluminum Sleeves see Figure 3 56 This completes the disassembly Figure 3 56 Removing the Aluminum Sleeves 3 33 CHAPTER 3 REPAIR PROCEDURES 3 2 14 Installing the Ratio Beam 1 Ifanew Ratio Beam is being installed remove the existing weights from the old Ratio Beam and install on the replacement Ratio Beam See Figure 3 57 Note Some Load Cells do not require weights mat E Beam Weights Ratio Beam Figure 3 57 Ratio Beam Weight Removal 2 Refer to Figure 3 58 and examine the load Cell slotted areas and make sure all areas are clean and free of debris Hold the Load Cell up to the light to see into the slotted areas If dust or dirt appears in any slotted area use canned pressurized clean air that is normally used for cameras and gently blow out any dirt Use extreme care Critical area is shown in Figure 3 58 CAUTION DO NOT USE COMPRESSED OR SHOP AIR AS C
5. 3 1 3 1 1 Opening the Balance UT 3 1 3 1 2 Display Circuit Board Repair or 3 3 3 1 3 Main Printed Circuit Board 3 5 3 1 4 RS232 Interface Printed Circuit Board Replacement AV Models only 3 6 3 1 5 Strain Gauge Load Gell Replacement 3 7 3 2 Repair Procedures Large Frame AS and AV Models 3 8 3 2 1 Opening the Balance NT 3 8 3 2 2 Display Circuit Board Repair or Replacement 3 11 3 2 3 Main Printed Circuit Board Replacement 3 12 3 2 4 RS232 Interface COM 1 or COM 2 RS or USB Printed Circuit Board Replacement 3 13 3 2 5 Strain Gauge Load Cell Replacement with InCal 3 14 3 2 6 Strain Gauge Calibration InCal Mechanism Removal Replacement 3 15 2 Load Cell S 3 18 3 2 8 InCal Motor 3 20 3 2 9 InCal Mechanism 3 22 3 2 10 Position Sensor Assembly Removal Replacement
6. Figure 3 3 Balance Opened CHAPTER 3 REPAIR PROCEDURES 3 1 2 Display Circuit Board Repair or Replacement Cont 3 4 8 9 Disconnect the interconnecting cable from the Display Printed Circuit Board Connect the interconnecting cable to the replacement Display Printed Circuit Board Install the new Display Printed Circuit Board into position on the top Cover Replace the mounting screws Reassemble the Balance Replace the batteries if previously removed Check the performance of the Balance and perform Linearity Calibration A 2 3 1 3 Main Printed Circuit Board Replacement Itis suggested that if the Main Printed Circuit Board is suspected of being faulty it should be replaced To replace the Main Printed Circuit Board proceed as follows 1 2 Remove the balance cover refer to section 3 1 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS Disconnect the cables from the Main Board assembly See Figure 3 4 Connecting Cables Up to 4 Mounting Screws 4 Figure 3 4 Removing Main PC Board 3 5 CHAPTER 3 REPAIR PROCEDURES 3 1 3 Main Printed C
7. DHAUS SERVICE MANUAL ADVENTURER PRO BALANCES and ADVENTURER SL BALANCES Ohaus Corporation 19A Chapin Road P O Box 2033 Pine Brook NJ 07058 2033 973 377 9000 OHAUS SERVICE MANUAL ADVENTURER PRO BALANCES and ADVENTURER SL BALANCES 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 2005 Ohaus Corporation all rights reserved TM Registered trademark of Ohaus Corporation TABLE OF CONTENTS CHAPTER 1 INTRODUCTION a 1 1 1 1 1 2 ttt 1 1 13 Tools and Test Equipment Peduild cae ae itae 1 2 1 3 1 Special Tools and Test Equipment List ar 1 2 1 3 2 Standard Tools and Test Equipment List sn ae mitos 1 2 1 4 Test Masses Required 1 3 6 38 0 0 on RR Ema 1 5 CHAPTER 2 DIAGNOSIS 21 TROUBIESNOONM ORO RE ee 2 1 22 Diagnostic Gilde 2 1 22 1 NAIA Bern cea 2 1 23 mor Codes for all OSG mt 2 7 CHAPTER 3 REPAIR PROCEDURES 3 1 X Repair Procedures Small Frame AS AND AV
8. CHAPTER 1 INTRODUCTION TABLE 1 2 ADVENTURER AS MODELS CALIBRATION POINTS WEIGHT CLASS ASTM OIML 1 E2 2 F1 1 E2 2 F1 1 E2 2 F1 4 F2 2 F1 2 F1 2 E2 2 F1 4 F2 MODEL AS64 AS153 AS214 AS312 AS313 AS612 AS811 AS1502 AS3101 AS3102 AS6101 AS8100 CAPACITY 65g 150g 210 310 310 610 810 1500 3100 3100 6100 8100 SPAN CAL POINTS g 40 50 or 60 100 or 150 100 or 200 150 200 250 or 300 150 200 250 or 300 300 400 500 or 600 200 300 400 500 600 700 or 800 1000 or 1500 1500 2000 2500 or 3000 1000 2000 or 3000 3000 4000 5000 or 6000 2000 3000 4000 5000 6000 7000 or 8000 LINEARITY CAL POINTS g 25 and 50 100 and 150 100 and 200 150 and 300 150 and 300 300 and 600 400 and 800 1000 and 1500 1500 and 3000 2000 and 3000 3000 and 6000 4000 and 8000 CHAPTER 1 INTRODUCTION 1 5 SPECIFICATIONS Specifications for the Adventurer AV Model balances are listed in Table 1 3 Table 1 4 contains the specifications for the Adventurer AS Model balances When a balance has been serviced it must meet the specifications listed in the tables Before servicing the balance determine what specifications are not met TABLE 1 3 ADVENTURER AV MODEL SPECIFICATIONS Item Number AV53 AV 64 Avi14 AV264 AV213 AV313 AV413 AV212 AV412 AV 64 AV114C AV264C AV213C AV313C AV413C mg 3m Capacity 9 310 n Off Center Load 1 2 cap 1 2 distance
9. Position of the test weight with m Filling position X Viewed From Front of Balance oes EF I e 9 fi tes Figure 4 5 MFR Adjustments CHAPTER 4 TESTING 4 4 RS232 Interface Test AV Models Only The RS232 Interface can have its performance monitored using an external printer or computer connected to the balance The RS232 Interface is a bi directional interface which enables the balance to communicate with a printer or computer equipped with an RS232 serial port An RS232 menu is in the balance This menu enables various parameters such as Baud rate Data bits Stop Bits and Parity to be setin the balance The RS232 menu provides communication parameters which can be set to accommodate external printers or computers It contains three submenus Baud rate Parity Data Handshake and End which enable you to program balance parameters and to lock the settings Procedure 1 Set the RS232 baud rate parity and Handshake as required on the balance 2 Setthe communication parameters on the computer to the same settings as the balance 3 Connect an interconnecting RS cable to the balance from the computer Baud Rate This submenu is used to select the desired baud rate B aud rates are available from 600 to 19 200 The default setting is 2400 Parity Parity can be set to 7 Odd 7 Even 7 No Parity or 8 No Parity The default setting is 7 No Parity Handshake can be set to Off XONXOFF Hardware
10. REMEDY Display is not on or partial characters are displayed Display PC Board is de fective The Display PC Board is replaced as a whole assembly Check procedures in Table 2 1 first and verify that other prob lems do not exist Replace Display PC Board Repair Procedures 3 1 2 or 3 2 2 CHAPTER 2 DIAGNOSIS TABLE 2 5 BALANCE CANNOT CALIBRATE MANUALLY SYMPTOM PROBABLE CAUSE REMEDY Balance can be turned on Incorrect weights Verify that proper weights are used but will not calibrate manu ally Balance is set for legal Check that LFT lock switch is set to un for trade operation locked position AV Models only Set the Setup Menu Legal for Trade set ting to Off Setthe Lockout Menu CAL to Off position Calibrate the balance using procedure in Appendix A Calibration perform both Lin earity and Span calibrations If the balance fails to calibrate properly enter the service mode Appendix B and perform a Linearity and Span calibration again If this fails either the load cell is defective and will require replacement or the load cell adjustment stops have loos ened and have to be reset Perform gt Repair Procedures 3 1 10r 3 2 1 and open the balance Loadcell assembly stops Remove the cover from the load cell out of adjustment strain Check the up down stops in accordance gauge only with section 4 4 and refer to table 4 5 Measure the gap settings if
11. Screw 14 Refer to Figure 3 53 and remove the centering pins Figure 3 61 Adjusting Screw Alignment 15 Refer to figure 3 53 and make sure that the ratio Beam coil is centered in the Magnet assembly If the coil is not centered inspect the centering ring loosen the Ratio beam nuts and repeat from step 12 16 Refer to Figure 3 62 and remove the contact board screw a and place as shown in b Be very careful not to break the fine contact wires on the board Contact Board screw Contact Wires E Contact Board Figure 3 62 Repositioning the Contact Board and Screw 3 36 CHAPTER 3 REPAIR PROCEDURES 3 2 15 Vertical Stop Adjustment This procedure is required when the Ratio Beam or the Sensor Board has been replaced The vertical stop setting is the reference for the Ratio Beam height horizontal position 1 The Load Cell should be installed in the balance housing 2 The ribbon cable from the Load Cell is plugged into the Main PC board 3 Disconnect cable from the Load Cell to Ratio Beam important step 4 Attach voltmeter DC range to pins on Load Cell PCB test connector 5 Apply power to the balance Test Connector O To Voltmeter Test Connector Figure 3 63 Test Connector Location Figure 3 64 Area of Detail Setting Vertical Stop 1 Referto Figure 3 63 Attach a Digital Voltmeter to the pins indicated on the test conne
12. AV313 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG313 U C CR CU AV413 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 C CR CU AS313 ASG313 Weighing Pan 3 5 dia 90mm dia AV64 U C CR CU CN CNR CNU AVG64 R U C CR CU AV114 U CR CU CM CMR CMU CNR CNU C AVG114 R U C CR CU AV214 C CR CU R U AV264 R U C CR CU CM CMR CMU CNU CN CNR AVG264 U C CR CU AS64 ASG64 AS214 ASG214 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 6 8 PART NO 12102943 12103887 DESCRIPTION Pan Support 4 7 x 120 mm AV212C CDM CDMR CDMU CN CNR CNU CR CU AVG212C CR CU AV213 R N NR NU C CR CU CM CMR CMU CN CNR CNU AVG213C CR CU AV313 R U NR NU C CR CU CM CMR CMU CN CNR CNU AVG313 R U C CR CU AV413 R N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 R U C CR CU AS313 ASG313 EMC Plate Square Draft Shield Balances AV64 U C CR CU CN CNR CNU AVG64R U C CR CU AV114 R U CR CU CM CMR CMU CNR CNU C AVG114 R U C CR CU AV264 R U C CR CU CM CMR CMU CNU CNR CN AVG264 R U C CR CU AS64 ASG64 AS214 ASG214 AS313 ASG313 AVG213 C CR CU R U AV313 R U N NR NU C CR CU CM CMR CMU CN CNR
13. CNU AVG313 R U C CR CU AV413 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 R U C CR CU AV213 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AV214 C R CR U CU CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 8 PART NO 12103861 12103883 12103860 12103852 12103859 DESCRIPTION EMC Plate Square InCal Balances AV2101C R U CDM CDMU CN CNR CNU CR CU AVG2101C R U AV2102C CR CU CM CMR CMU CN CNR CNU AVG2102C CR CU AV3102C CR CU CN CNR CNU AVG3102C CR CU AV4101C CR CU CDM CDMR CDMU CN CNR CNU AVG4101C CU AV4102C CR CU CM CMR CMU CN CNR CNU AVG4102C CR CU AV412C CR CU CDM CDMR CDMU CN CNR CNU AVG412C CR CU AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU AV812C CR CU CM CMR CMU CN CNR CNU AVG812C CR CU EMC Plate Square Non InCal Balances AV2102 R U N NR NU AVG2102 R U AV3102 R U N NR NU AVG3102 R U AV4102 R U N NR NU AVG4102 R U AS3102 ASG3102 EMC Plate For Round Wind ring AV212C CR CU CM CMR CMU CN CNR CNU AVG212C CR CU Top Housing See Note 1 Wind Ring Square AV412C CR CU CN CNR CNU CDM CDMR CDMU AVG412C CR CU AV812C CR CU CM CN CMR CMU CNR CNU AVG812C CR CU AV2101C CR CU CDM CDMR
14. LCD amp Backlight Not shown Top Cover Figure 3 9 Large Frame Balance Opened 3 11 CHAPTER 3 REPAIR PROCEDURES 3 2 2 Display Circuit Board Repair or Replacement Cont 3 4 7 8 Disconnect the interconnecting cable from the Display Printed Circuit Board Connect the interconnecting cable to the replacement Display Printed Circuit Board Install the new Display Printed Circuit Board into position on the top Cover Replace the 4 mounting screws Reassemble the Balance Check the performance of the Balance 3 2 3 Main Printed Circuit Board Replacement Itis suggested that if the Main Printed Circuit Board is suspected of being faulty it should be replaced To replace the Main Printed Circuit Board proceed as follows 1 2 Remove the balance cover refer to section 3 2 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS Disconnect the cables from the Main Board assembly COM 1 is present on AV models only COM 2 is optional on AV models See Figure 3 10 Connecting Cables gt Mounting Screws 3 Figure 3 10 Removing Main PC Board 3 12 CHAPTER 3 REPAIR PROCEDURES 3 2 3 Main Printed Circuit Board Replacement Cont 3 The Main Printed Circuit Board is fa
15. Note At this point other repairs may be made to the Load Cell 3 25 CHAPTER 3 REPAIR PROCEDURES 3 2 11 Unmounting the Load Cell from the Base Plate Cont Base Plate Installation 1 Make sure the mating surfaces on the Base plate and the Load Cell as shown in Figure 3 37 are clean 2 Position the Load Cell on the base and install the 2 mounting screws Do not tighten fully 3 Looking down at the top of the load Cell align it with the Base Plate as shown in Figure 3 38 Now carefully tighten the 2 mounting screws and recheck alignment ei zzoroszt cimo cr LIT HELME i B Alignment Area Figure 3 38 Load Cell Alignment to Base Plate 4 Install the Weigh Below Hook and screw at the bottom of the Base Plate 3 2 12 Changing the Load Cell PC Board 1 Remove Load Cell from Mounting Plate refer to paragraph 3 2 11 2 Unsolder Temperature Sensor board cable see Figure 3 39 Unsolder Wires Temperature Sensor Board Figure 3 39 Temperature Sensor Board Unsoldering Location 3 26 CHAPTER 3 REPAIR PROCEDURES 3 2 12 Changing the Load Cell Board Cont 3 Unsolder Position Sensor Assembly from Load Cell PC board Unsolder Position Sensor Assembly Unsolder Temperature Ratio Beam Cable Load Cell Load Cell Sensor Board Board Screw PC Board Figure 3 40 Load Cell PC Board Item Locations 4 Disconnect the Ratio beam cable connector 5 Remove Load
16. AS811 AS3101 AS6101 AV412 AV812 AV2101 AV4101 AV8101 Asg100 Draft Shield Cover Draft Shield Pan Pan Support EMC Plate Cover Screws 2 Figure 3 1 Top of Balances 3 2 CHAPTER 3 REPAIR PROCEDURES 3 1 1 Opening the Balance Cont Battery Cover Screws 4 Compartment Figure 3 2 Bottom of Balance 3 1 2 Display Circuit Board Repair or Replacement Itis suggested that if the Display Circuit Board is suspected of being faulty it should be replaced rather than repaired The switches can be easily replaced They are available as a set of 4 The LCD and Backlight are difficult to replace To replace the Display Circuit Board proceed as follows 1 Remove the balance cover refer to section 3 1 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS 2 The Display Circuit Board is secured with 4 or 6 screws Remove the screws See Figure 3 3 CHAPTER 3 REPAIR PROCEDURES 3 1 2 Display Circuit Board Repair or Replacement Cont RS232 Interface Board COM 1 AV Models only RS232 Interface Board COM 2 Accessory AV Models only Load Cell Assembly Bottom Housing Main Board assembly Interconnecting Cable _ 4 or 6 Mounting Screws 2 77 Pd Display Board LCD amp Backlight Not shown Top Cover
17. CM CMR CMU CNR CNU CR CU R U AVG114 C CR CU R U AV213 C CM CMR CMU CN CNR CNU CR CU N NR NU R AVG213C CR CU R U AV214 C CR CU R U AV264 C CM CMR CMU CN CNR CR CU U CNU AVG264 C CR CU R U AV313 C CM CMR CMU CN CNR CNU CR CU NR NU R U AVG313 C CR CU R U AV413 C CM CMR CMU CN CNR CNU CR CU N NR NU R U AVG413 C CR CU R U Load Cell Shield See Note 1 Kit Load Cell Replacement MFR AV64 R U C CR CU CN CNR CNU AVG64C R U CR CU AV114 C R U CR CU CM CMR CMU CNR CNU AVG114 R U C CR CU AV214 C CR CU R U AV264 R U C CR CU CM CN CNR CMR CMU CNU AVG264 R U C CR CU AS64 ASG64 AS214 ASG214 Kit Load Cell Replacement MFR AV213 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG213C CR CU R U AV313 R U N NR NU C CR CU CM CMR CMU CN CNR CNU CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 27 27 27 27 27 PART NO 42904515 42904525 42904560 42904561 42904562 DESCRIPTION Kit Load Cell Replacement MFR Cont AVG313 R U C CR CU AV413 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 C CR CU AS313 ASG313 Kit Load Cell Replacement MFR AS3102 ASG3102 AV2102 C CR CU CM CMR CM
18. CU AVG212C CR CU AV264 R U C CR CU CN CNR CMR CMU CNU CM AVG264 C U CR CU AV213 U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG213C CR CU U AV214 C U CU CR AV313 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG313 U C CR CU AV412C CDM CDMR CDMU CN CNR CNU CR CU AVG412C CR CU AV413 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 U C CR CU AV812C CM CMR CMU CN CNR CNU CR CU AVG812C CR CU AV2101C CDM CDMR CDMU CN CNR CNU CR CU AVG2101C CR CU AV2102 C CM CMR CMU CN CNR CNU CR CU N NR NU U AVG2102 C CR CU R U AV3102 C CN CNR CR CU N NR NU U AVG3102 C CR CU R U AV4101C CDM CDMR CDMU CN CNR CNU CR CU AVG4101C CU AV4102 C CR CU CM CMR CMU CN CNR CNU N NR U NU AVG4102 C CR CU R U AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU 3 All AS Models AS64 ASG64 5214 ASG214 AS313 ASG313 AS3102 ASG3102 5 20 APPENDIX A STANDARD CALIBRATION A STANDARD CALIBRATION Adventurer Pro balances can be calibrated in two ways Span calibration or Linearity calibration Span calibration resets the balance s weighing range using two weight values zero and a weight value between 25 and 100 of the balance s capacity Linearity calibration minimizes deviation between actual and displayed weights within the balanc
19. NR NU M AVGB53 R U AS153 ASG153 5 12102947 EMC Plate round AV53 R U N NR NU M AVGB53 R U AV212 R U DM DMR DMU N NR NU AVG212 R U AS153 ASG153 AS312 ASG312 6 12103948 EMC Plate square AV412 R U DM DMR DMU N NR NU AVG412 R U AV812 R U M MR MU NR NU AVG812 R U AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8101 R U DM DMR DMU N NR NU AVG8101 R U AS612 ASG612 AS811 ASG81 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 5 4 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS Cont KEY NO 7 8 PART NO 12103945 12103946 12103854 12103929 12103853 12103980 12103905 12103901 12103850 12103904 DESCRIPTION Windring AV212 R U DM DMR DMU N NR NU AVG212 R U AS312 ASG312 Adapter Ring square AV412 R U DM DMR DMU N NR NU AVG412 R U AV812 R U M MR MU N NR NU AVG812 U AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8101 R U DM DMR DMU N NR NU AVG8101 R U AS612 ASG612 AS811 ASG811 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 Top Housing See Note 1 Function Label AV See Note 2 Function Label AS See Note 3 In use Cover See Note 1 Switch Set
20. 11 8 22 x 30 in cm Section 5 of this manual contains exploded views and associated parts lists for all models Refer to Section 5 drawings before disassembling the balance It should be noted that components inside of the balance are delicate and need to be handled with care There are two types of Load Cells used inthe balances strain gauge and MFR Magnetic Force Restoration Itis imperative that the Load Cell should never be subjected to any excessive torque stress or abrasion as damage may result Once the balance has been disassembled any small scratch or abrasion made to any of the Individual Strain Gauges will render the entire Load Cell unusable The Main Printed Circuit Board RS232 Interface Printed Circuit Board on AV models and the LCD and Backlight Board contain integrated circuits which employ CMOS technology therefore caution must be exercised so as not to subject any of these components to static electricity discharge When servicing a wrist Ground Strap with a 10 Megohm series resistor to earth ground is required The Printed Circuit Boards should be handled by grasping the edges only and never placing fingers on any of the runs or traces 3 2 4 Opening the Balance To disassemble the balance refer to Figures 3 7 and 3 8 that illustrates all of the Adventurer AV and Adventurer AS models Components shown on top of the balances must be removed before gaining access to the inside of the balance proceed as follows Always
21. 12 4 12 79292 Command table ee re 4 13 5 1 Replacement Parts List for AV and AS Small Frame Models 5 3 5 2 Replacement Parts List for AV and AS Large Frame Models 5 10 FIGURE 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 10 3 11 LIST OF ILLUSTRATIONS TITLE Page No WOD OF Bal NR I TEM 3 2 du are 3 3 ieu 1 T 3 4 PRETO WING BOB retenu ated tua nessa etal tici nupt sat uus 3 5 Removing RS232 Board riter toe ee 3 6 wipes moe Mov cc T 3 7 of AV Balances ee 3 9 AS Balanices eee 3 10 Large Frame Balance Opened 3 11 Removing Main PO BOB ee 3 12 Removing RS232 Board ee 3 13 FIGURE 3 12 3 13 3 14 3 15 3 16 3 17 3 18 3 19 3 20 3 21 3 22 3 23 3 24 3 25 3 26 3 27 3 28 3 29 3 30 3 31 3 32 3 33 3 34 3 35 3 36 3 37 3 38 3 39 3 40 3 41 3 42 3 43 3 44 3 45 3 46 3 47 3 48 3 49 3 50 3 51 3 52 3 53 3 54 LIST OF ILLUSTRATIONS Cont TITLE Page No Removing Strain Gauge end 3 14 InCal Mechanism IGS imei etr n 3 15 Motor Mounting Screws Location sueco eire aerei riu ebur el 3 15 BIA enel cR EE 3 16 Removing Tb GEAR
22. 3 1 Repeatability Test Repeatability is a word used in balance specifications meaning the Standard Deviation of a set of similar weight readings To determine whether a balance meets the calculated Standard Deviation value in the Specification Table 1 3 perform the following test Test 1 2 4 Tare the balance The reading on the display should be 0g Select a mass weighing near the maximum capacity of the balance and place the mass on the center of the Pan Observe and record the reading Remove the mass Reading should return to Og 1 count Repeat this test for ten readings If the standard deviation of the readings is less than 1 count the balance passes the Repeatability Test Adjustment If the deviation for any set of readings using the same mass placed on the center of the Pan is greater than 1 count the balance does not meet the Repeatability Test specification Inspect and correct the following areas 1 5 Check for mechanical obstructions Any foreign object touching any part of the moving Pan can cause a balance to fail the Repeatability Test Inspect and correct as necessary An error in the Off Center Load Test can affect the results of the Repeatability Test Inspect and correct if necessary See Off Center Load Test Foreign material or debris located in the balance between the Pan Pan Support and the Top Cover can cause the balance to fail the test Environmental influences such as vib
23. 5 of this manual contains exploded views and associated parts lists for all models Refer to Section 5 drawings before disassembling the balance It should be noted that components inside of the balance are delicate and needto be handled with care The small frame AS and AV models contain strain gauge load cells It is imperative that the Load Cell should never be subjected any excessive torque stress or abrasion as damage may result Once the balance has been disassembled any small scratch or abrasion made to any of the Individual Strain Gauges will render the entire Load Cell unusable The Main Printed Circuit Board RS232 Interface Printed Circuit Board on some models and the LCD and Backlight Board contain integrated circuits which employ CMOS technology therefore caution must be exercised so as not to subject any of these components to static electricity discharge When servicing a wrist Ground Strap with a 10 Megohm series resistor to earth ground is highly recommended The Printed Circuit Boards should be handled by grasping the edges only and never placing fingers on any of the runs or traces 3 1 1 Opening the Balance To disassemble the balance refer to Figure 3 1 on the next page that illustrates all of the Adventurer Pro and Adventurer SL models Components shown on top of the balances must be removed before gaining access to the inside of the balance proceed as follows Always use an antistatic kit 1 Turn the balance of
24. AS612 811 AS1502 AS3101 AS3102 AS6101 AS8100 Capacity g 65 210 150 310 310 610 810 1500 3100 3100 6100 8100 Readability g 0 0001 0 001 0 01 0 1 0 01 0 1 0 01 0 1 1 Repeatability Std Dev g 0 0001 0 001 0 01 0 1 0 01 0 1 0 01 0 1 1 Linearity 0 0 0002 0 002 0 02 02 0 02 02 0 02 0 2 2 Off Center Load 1 2 cap 1 2 distance 0 3mg 3mg 30mg 200mg 30mg 200mg 30mg 200mg 2g Weighing Units Milligram mg Gram g Kilogram kg Ounce oz Pound Ib Carat ct Pennywieght dwt Ounce Troy ozt Grain GN Newton N Hong Kong Tael t SiTael Singapore Tael t Taiwan Tael t Tical t Tola t Momme m Mesghal m Baht B Custom C Application Modes Simple Weighing Weigh Pieces Counting Count Percent Weighing Percent Tare Range To capacity by subtraction Stabilization time seconds 3 25 3 1 3 2 3 2 1 Battery Operation No Yes No Yes Power Requirements tn ems AC Adapter d AC Adapter i AC Adapter AC Adapter included included not included AC Adapter included or 4 AA batteries not included included or 4 AA batteries not included included Calibration Digital with External Weight Display Type Single Line LCD Display Size in cm 4x1 10x25 7 58x63 6 6x7 1 58x63 Pan Size in cm 3 5 9 dia 3 9 10 dia 47112 dia 149 162 168x18 149 x 162 76 5 7 87x7 5x 87x33x i
25. CNU AVG812C CR CU AV2101C CR CU CDM CDMR CDMU CN CNR CNU AVG2101C CR CU AV2102C CR CU CDM CDMR CDMU CN CNR CNU AVG2102C CR CU AV3102C CR CU CN CNR CNU AVG3102C CR CU AV4101C CR CU CDM CDMR CDMU CN CNR CNU AVG4101C CU AV4102C CR CU CDM CDMR CDMU CN CNR CNU AVG4102C CR CU AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU InCal Assembly Magnetic Force Restoration MFR AV64C CR CU CN CNR CNU AVG64C CR CU AV114C CR CU CM CMR CMU CNR CNU AVG114C CR CU AV213C CR CU CM CMR CMU CN CNR CNU AVG213C CR CU AV264C CR CU CM CMR CMU CN CNR CNU AVG264C CR CU AV313C CR CU CM CMR CMU CN CNR CNU AVG313C CR CU 5 17 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 29 30 31 31 31 31 999 PART NO 42904900 42904901 12102323 12102322 12102321 12102320 12103928 DESCRIPTION InCal Assembly Magnetic Force Restoration MFR InCal Assembly Strain Gauge SG Adapter 230V AU Adapter 240V GB Adapter 230V EU Adapter 120V US Hardware kit See Note 1 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont NOTES 1 All Models AV64 U C CR CU CN CNR CNU AVG64 C CR CU U AV114 CR CU CM CM
26. Cell Board screw and change board 6 If servicing an AS balance temporarily install RS232 PC board and cable CAUTION When screwing in first turn the self tapping cell board screw in a counterclockwise direction until the first screw thread engages and then tighten it 7 Refer to appendix C and follow instructions to restore EEPROM 8 Remove RS232 board and cable Load Cell PC Board u e Figure 3 41 Load Cell PC Board Removed from Load Cell 3 27 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Note Perform procedures in paragraphs 3 2 7 3 2 8 3 2 10 3 2 11 3 2 12 first 1 Hold Contact Board to ensure the fine coil wires cannottear off then remove screw as shown in Figure 3 42 Coil Wires Fastening Screw Figure 3 42 Contact Board Location 2 Remove Contact Board from holder and screw onto the ratio Beam see Figure 3 43 This is the hole directly above 3 Insert the centering pins from the service tool set in the holes provided See Figures 3 44 and 3 45 InCal Weight Arm Screws and Washers Ratio Beam Mounting Centering Pins Screws and Washers Figure 3 44 Ratio Beam and Weight Arm Components 3 28 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Cont Centering Pins Centering Pins Installed Installed Figure 3 45 Centering Pins Installation 4 Referto Figu
27. PC Board is defec If the scale fails to turn on the Main PC tive Boardis defective and should be replaced Repair Procedures 3 1 3 NOTE Battery operation is included only on certain models refer to specification Tables 1 3 and 1 4 for listing of models CHAPTER 2 DIAGNOSIS TABLE 2 8 BALANCE DOES NOT RESPOND TO FRONT PANEL CONTROLS SYMPTOM PROBABLE CAUSE REMEDY Balance does not respond to front panel controls with ac adapter connected PC board switch or actu ating fingers on top hous ing are defective Main PC Board is defec tive CAUTION For the following procedure disconnect the ac adapter and remove power and or batteries from the balance to prevent damage to the Ohmmeter Referto section 3 1 1 or3 1 2andopenthe balance Using an Ohmmeter measure the resistance between the pins on the ON Zero Off switch itshould be open then press the switch through the top housing and check that the resistance is zero Checkeach switch in a similiar manner If continuity is not present on a particular switch replace the affected switch or actuator NOTE Actuators are part of the top hous ing To replace an actuator the top hous ing must be replaced gt Repair Procedures 3 1 or 3 2 If the switches and actuators are OK replace the Main PC Board Repair Procedures 3 1 3 or 3 2 3 TABLE 2 4 NO DISPLAY OR PARTIAL DISPLAY SYMPTOM PROBABLE CAUSE
28. The default setting is XONXOFF 4 4 1 Connecting the RS232 Interface When the interface is connected to a computer two way communication between the computer and balance is possible using the commands outlined in the RS232 Command Table 4 10 Connection Data The balance will not output any data unless pin 5 CTS is held in an ON state 3 to 15 V dc Interfaces not utilizing the CTS handshake may tie pin 5 to pin 6 to defeat it RS232 Commands All communication is accomplished using standard ASCII format Only the characters shown in the RS232 Command Table 4 10 are acknowledged by the balance Invalid command response ES error indicates the balance has not recogonized the command Commands sent to the balance must be terminated with a carriage return CR or carriage return line line feed CRLF Data output by the Balance is always terminated with a carriage return line feed CRLF CHAPTER 4 TESTING 4 4 4 Connecting the RS232 Interface Cont Refer to Figure 4 6 for RS232 connector and Table 4 10 for a description of the pin functions RS232 Interface On the rear of the balance the 9 pin female subminiature D connector COM 1 is provided for interfacing to other devices The pin connections are shown in the illustration below Table 4 10 COM 1 INTERFACE PIN CONNECTIONS COM1 Pin Connections 1 Remote Tare 969900 ui 3 RxD 4 DSR 5 Ground Figure 4 6 COM 1 Connector 6 DTR 7
29. U Pan 5 8 x 6 3 149mm x 162mm AV412 R U DM DMR DMU N NR NU AVG412 R U AV811 R AVG811 R AV812 R U M MR MU N NR NU AVG812 R U AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8100 R AVG8100 R AV8101 R U M MR MU N NR NU AVG8101 R U AS612 ASG612 AS811 ASG811 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 Weighing Pan 4 7 dia 120mm dia AV212 R U DM DMR DMU N NR NU AVG212 R U AS312 ASG312 Weighing Pan 3 9 dia 100mm dia AV53 R U N NR NU M AVG53 R U AS153 ASG153 Pan Support 5 8 x 6 3 149mm x 162mm AV412 R U DM DMR DMU N NR NU AVG412 R U AV811 R AVG811 R AV812 R U M MR MU N NR NU 5 3 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS Cont KEY NO PART NO DESCRIPTION 4 12103944 Pan Support 5 8 x 6 3 149mm x 162mm Cont AVG812 R AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8100 R AVG8100 R AV8101 R U M MR MU N NR NU AVG8101 R U AS612 ASG612 AS811 ASG811 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 4 12102943 Pan Support 4 7 dia 120mm dia AV212 R U DM DMR DMU N NR NU AVG212 R AS312 ASG312 4 12102942 Pan Support 3 9 dia 100mm dia AV53 R U N
30. adjusting the up stop CAUTION DO NOT PULL UP ON THE LOAD CELL AS DAMAGE MAY OCCUR USE FEELER GAUGES TO CHECK CLEARANCES 1 Using a feeler gauge check the clearance of the up stops See Tables 4 6 or 4 8 2 If the clearance is excessive adjust the nuts using the data in Tables 4 7 or 4 8 See Figure 4 3 The screw with the nuts should be held fast while adjusting the nuts Locktite the nuts when completed Do not pull up on the Load Cell TABLE 4 5 AV MODELS TEST MASS VALUES Balance Capacity AV AS8100 CHAPTER 4 TESTING 4 2 4 Load Cell Adjustments Strain Gauge Models Only Cont Up Stop Adjustment Cont TABLE 4 7 AV MODELS LOAD CELL UP STOP ADJUSTMENT TOLERANCES Min mm in Max mm in 0 40 0 016 0 45 0 018 0 60 0 024 0 70 0 028 0 50 0 020 0 60 0 024 0 65 0 026 0 75 0 030 0 75 0 030 0 90 0 035 0 75 0 030 0 90 0 035 0 75 0 030 0 90 0 035 After the transducer has been adjusted assemble the balance retest and recalibrate TABLE 4 8 AS MODELS LOAD CELL UP STOP ADJUSTMENT TOLERANCES Min mm in Max mm in 0 40 0 16 0 45 0 018 0 60 0 024 0 70 0 028 0 65 0 026 0 75 0 030 0 65 0 026 0 75 0 030 0 65 0 026 0 75 0 030 0 75 0 030 0 90 0 035 0 75 0 030 0 90 0 035 0 75 0 030 0 90 0 035 After the transducer has been adjusted assemble the balance retest and recalibrate CHAPTER 4 TESTING 4 3 MFR LOAD CELL PERFORMANCE TESTS 4
31. of 4 See Note 1 Display Board Assembly Complete AV See Note 2 Display Board Assembly Complete AS See Note 3 LCD amp backlight AV See Note 2 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS Cont KEY NO 14 15 20 20 21 22 23 24 24 PART NO 12103851 12103910 12103925 12103902 12103920 12103927 12103900 12103881 12103936 12103923 12103926 42904570 42904571 DESCRIPTION LCD AS See Note 3 Cables Set of 5 See Note 1 Weigh Below Cover See Note 1 RS232 Interface Board Assembly AV See Note 2 Bottom Housing See Note 1 Load Cell Shield with tape See Note 1 Main Board Assembly AV See Note 2 Main Board Assembly AS See Note 3 Level See Note 1 Feet Set of 4 See Note 1 Battery Compartment Cover See Note 1 Kit Load Cell replacement AV53 R U NR NU M AVG53 R U AS153 ASG153 Kit Load Cell replacement AV212 R U AVG212 R U AS312 ASG312 5 6 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS Cont KEY NO 24 24 24 24 24 24 25 25 25 25 999 PART NO 42904572 42904573 42904574 42904575 42904576 42904577 12102323 12102322 12102321 12102320 12103928 DESCRIPTION Kit Load Cell replacement AV21
32. position as shown Motor Coupler Figure 3 27 Motor Coupler Correct Angle Correct Angle Coupler Figure 3 28 Motor Shaft in CCW Position Figure 3 29 Motor Shaft in CW Position 3 Remove the screw and Coupler from the old InCal Motor 4 Onthereplacement Motor install the screw and Coupler then rotate the Motor shaft by hand until the shaft is in a fully counter clockwise position as shown in Figure 3 28 The Coupler should be in the position as shown if not remove the screw and coupler Reposition as shown in Figure 3 28 tighten the screw on the Motor shaft Rotate the Motor shaft in a full clockwise position The Motor shaft should be positioned as shown in figure 3 29 If the positions are not correct remove and reposition the Coupler again 3 21 CHAPTER 3 REPAIR PROCEDURES 3 2 8 InCal Motor Removal Replacement Cont InCal Motor Replacement Cont 5 Install the InCal Motor to the InCal Mechanism the motor shaft must be in the position as shown Figure 3 28 The InCal Motor shaft must be in the fully counter clockwise position 6 Secure the InCal Motor and InCal Motor Shield to the InCal Mechanism with the screws previously removed 7 Replace the MFR Load Cell refer to paragraph 3 2 7 3 2 9 InCal Mechanism Removal Replacement InCal Mechanism Removal NOTE Replacement InCal Mechanism s are supplied assembled with the InCal Motor installed 1 See Figure 3 30 and remov
33. progress When complete the balance power should be cycled 10 Perform Service Linearity and Span calibrations see Appendix B Test balance 01 File Settings Restore EEPROM Load Cell Replacement Software Download sm EEPROM Data File File Location Browse Write Data File APPENDIX C AVENTURER PRO SOFTWARE SERVICE TOOL INSTRUCTIONS C 2 ToReplace a Load Cell 1 2 Follow the steps in section 3 1 5 to replace the defective load cell Open the packet containing labels that was supplied with the replacement load cell These labels each contain a model number followed by the IDNR number Carefully select the label that matches exactly the model number of the balance Remove the batteries from the balance Install the new label in the battery compartment replacing the old label Do not reinstall the batteries Power the balance from an AC adapter Connect the balance to your computer Start the Adventurer Pro Service Tool Software KA Adventurer Pro Service Tool 1 00 4 zi x1 File Settings Restore EEPROM Software Download Temperature 23 Celsius Reference C 3 APPENDIX C ADVENTURER PRO SOFTWARE SERVICE TOOL INSTRUCTIONS C 2 ToReplace a Load Cell Cont 7 Click on the tab labeled Load Cell Replacement 8 Enter the IDNR number xxx xx xx xxxx from the label supplied with the replacement load cell and the Serial Number from the label on the side of
34. see ee 3 16 Top Gear Removed erm 3 16 Top Gear 3 16 3 17 emt een 3 17 Coupler Shaft Rotator ehe 3 17 MER Load Dell Gompoliblls ee 3 18 Removing MER Load m 3 19 NS all NATION TOC AUG Meese e Ee aaea E E 3 20 lab Malor a E 3 20 Checking Shaft Rotation on InCal Mechanism an 3 21 Motor cT E Us 3 21 Motor Shaft In CCW POSIID ernten 3 21 M tor Shaft ger PTT ooo S 3 21 InCal Mechanism Mounting SCrews u ck 3 22 Hem ving In alMechanlen RTT m o T 3 22 Iial Mechanism curtes rt atus een 3 23 Centering InCal Weight ea 3 23 Removing Position Sensor Assembly 3 24 Ratio Beam ANGES aciei oo coit 3 24 Bass plate nn ae 3 25 ecole NeUmgeReT H c E OT 3 25 Load Cell Alignment to Base Plate E Ea panas 3 26 Temperature Sensor Board Unsoldering Location 3 26 Load Gell PC Board ltem Locations ernennen 3 27 Load Cell PC Board Removed from Load 3 27 Board NE o oo 3 28 Close Up Ol OUI nie 3 28 Ratio Beam and Weight Arm Components
35. the balance 9 Enter the current ambient temperature in degrees Celsius 10 Click on the Start button 11 The fields for Model Name will then be filled with models where the Load Cell can be used Click on the Model Name of the balance in which you are installing the load cell 12 Click on the start button 13 The software will indicate the download progress When complete the balance power should be cycled 14 Perform Service Linearity and Span calibrations see Appendix B Test balance C 3 To Update the Software in the Balance 1 Remove the batteries from the balance and power it from an AC adapter 2 Connect the balance to your computer 3 Start the Adventurer Pro Service Tool Software Adventurer Pro Service Tool 1 00 loj xl File Settings Restore EEPROM Load Cell Replacement iSoftware Download Software file to download to balance Download file to balance m Stat Download APPENDIX AVENTURER PRO SOFTWARE SERVICE TOOL INSTRUCTIONS C 3 To Update the Software in the Balance Cont 4 5 Click on the tab labeled Software Download Enter the path to the location of the file to download or click the browse button to locate the file Click on the Start Download button Cycle power to the balance when prompted The software will indicate the download process When complete the balance power should be cycled again Perform Service Linearity and Span calibratio
36. the balance using tests in section 4 2 3 2 8 InCal Motor Removal Replacement This procedure describes how to remove the calibration motor from a load cell There can be several reasons why the internal calibration does not function including broken or jammed InCal Mechanism defective InCal Motor defective Main PC board To remove the InCal motor proceed as follows InCal Motor Removal 1 2 Remove the Top Housing in accordance with procedures in paragraph 3 2 1 Perform procedure as described in paragraph 3 2 7 and remove the load cell Refer to Figure 3 24 for InCal Motor location Remove the 2 screws holding the InCal Motor and InCal Motor shield in place from the InCal mechanism See Figure 3 25 InCal Mechanism InCal Motor InCal Motor Figure 3 24 InCal Motor Location sabe Shield nee Mounting Screws a Figure 3 25 InCal Motor Removal 3 20 CHAPTER 3 REPAIR PROCEDURES 3 2 8 InCal Motor Removal Replacement Cont InCal Motor Replacement 1 Referto Figure 3 26 and gently rotate the InCal Mechanism to lower the InCal Weight and rotate in the opposite direction to raise the InCal Weight If the operation is not smooth replace the entire InCal Mechanism Figure 3 26 Checking Shaft Rotation on InCal Mechanism InCal Weight 2 See Figure 3 27 with Incal Weight in upper most high position the Motor Coupler should be in the
37. use antistatic ground strap 1 Turn the balance off and if using an AC Adapter disconnect it from the balance 2 On balances containing a draft shield remove the draft shield glass panels 3 Remove the Pan from the balance Pan sizes and shapes vary 4 Remove the Pan Support from the balance 5 Remove the Wind Ring if supplied 6 Remove the 2 screws from the top of the balance then remove the Antistatic Plate 7 Removethe2 screws from the top of the balance located at the rear these are long threaded bolts These are covered by the anti EMC Plate See Figures 3 7 and 3 8 AN 8 Carefully lift the Top Cover from the balance Bottom Housing There 4 plasic locating pins one in each corner of the cover Be careful when removing the cover as the pins will fall free These pins are used to locate the Wind Ring Use caution when lifting the Top Cover as it is connected by a cable to the Main Board Assembly 9 Unplug the cable from the Main PC Board Assembly Set the Top Cover aside 10 After repairs and or adjustments have been made reassemble the balance in the reverse order 3 8 CHAPTER 3 REPAIR PROCEDURES 3 2 1 Opening the Balance Cont AV MODELS Glass Doors AV64 AV64C AV114 AV114C AV264 AV264C MFR TYPE an P DAN Pan Support SZ SS gt gt EMC Plate AV412C AV812C AV2101C AV212 MFR TYPE AV41 1C AV8101C STRAIN GAUGE TYPE STRAIN GAUGE TYPE AV21
38. 0 2mg 0 2mg 0 3mg 0 029 Weighing Units Milligram Gram Kilogram Ounce Pound Carat Pennyweight Ounce Troy Grain Newton Hong Kong Tael Singapore Tael Taiwan Tael Momme Tical Baht Mesghal Tola Custom Application Modes Weighing Parts Counting Percent Weighing Check Weighing Animal Weighing Display Hold Totalize are Range To Capacity by Subtraction Stabilization Time 5 Draft Shield Height Over Platform 2 5 1 4 5 11 5 Power Requirements AC Adapter Included Calibration Digital with External Weight 2 Line LCD w Backlight Display Size in cm 4x1 10x2 5 Platform Size in om 4 7112 dia 5 8x6 3 14 9x 16 2 19 3X 14 5 X 25 4 22x30 x 30 22x 19x30 19 3 7 2 254 Item Number AV812 AV212C AVA12C AV812C AV2102 AV3102 AV4102 AV2101 AV4101 AV2102C AV3102C AV4102C T m TETDTT 2i Off Center Load 1 2 cap 1 2 distance 0 039 0 039 0020 0 039 0 29 Weighing Units Milligram Gram Kilogram Ounce Pound Carat Pennyweight Ounce Troy Grain Newton Hong Kong Tael Singapore Tael Taiwan Tael Momme Tical Baht Mesghal Tola Custom Display Type Application Modes Weighing Parts Counting Percent Weighing Check Weighing Animal Weighing Display Hold Totalize Q Range To Capacity by Subtraction Stabilization Time 5 Power Requirements AC Adapter Included Calibration Digital with External Weight Display Type 2 Line LCD w Back
39. 02C AV3102C AV4102C MFR TYPE Figure 3 7 Top of AV Balances CHAPTER 3 REPAIR PROCEDURES 3 2 1 Opening the Balance Cont AS MODELS AS313 MFR TYPE Pan Pan Support EMC Plate Cover Screws 2 AS3102 MFR TYPE Figure 3 8 Top of AS Balances CHAPTER 3 REPAIR PROCEDURES 3 2 2 Display Circuit Board Repair or Replacement Itis suggested that if the Display Circuit Board is suspected of being faulty it should be replaced rather than repaired The switches can be easily replaced They are available as a set of 4 The LCD and Backlight are difficult to replace The AS and AV models are available with strain gauges and MFR type load cells Figure 3 9 illustrates both types of load cells with Internal calibration motor drives To replace the Display Circuit Board proceed as follows 1 Remove the balance cover refer to section 3 2 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS 2 The Display Circuit Board is secured with 4 screws Remove the screws See Figure 3 9 RS232 Interface Board COM 1 Communications Interface Board COM 2 Load Cell Assembly Strain Gauge Load Cell Assembly MFR Bottom Housing Main PC Board Interconnecting Cable 4Mounting Screws M Display Board
40. 1250g 3000g AV3102 4100g 1g 1000g 2000g 3000g 4000g AV4102 1 Place the test mass on the balance and record the weight 2 Place Load 1 on the balance and press the ON ZERO Off button 3 Place the test load on the balance and record the weight 4 Place Load 2 on the balance and press the ON ZERO Off button 4 3 4 Adjusting the MFR Load Cell Off Center Load The MFR Load Cell is not adjusted by means of cornerload screws but by removing material from its top This is achieved by a few strokes with a nibler file exerting slight pressure as you pull the file towards you CAUTION Do not attempt to adjust if more than 5 counts out File only in positions shown in Figure 4 5 On completion of the adjustments clean filing sites by removing residue with adhesive tape CHAPTER 4 TESTING 4 3 4 Adjusting the MFR Load Cell Off Center Load Cont 1 With Top Housing and Load Cell Shield removed and power removed install Pan Support and weighing Pan then apply power Perform off center load test and deter mine error Remove Pan and Pan Support Determine associated filing position per Figure 4 5 Perform adjustment as re quired Repeat above steps until balance is within tolerance as per Table 4 3 Turn the balance OFF and remove power Remove the Pan and Pan Support Install the load Cell Shield on the bal ance Replace the Top Housing and and se cure with two Screws
41. 19 3 x 25 4 large frame balances measure 8 7 x 11 8 22 x 30 2 2 1 Diagnosis 1 Isolate and identify the symptom 2 Refer to Table 2 1 Diagnostic guide and locate the symptom 3 Follow the suggested remedies in the order that they appear 4 Perform the indicated checks or see the appropriate section of the manual 5 Repair or replace the defective section of the balance NOTE If more than one symptom is observed it is necessary to approach one area at a time and also remember that the symptoms may be interrelated In the event that erratic or fluctuating weight readings are observed it is necessary to isolate the problem to either the mechanical area or the electronic area of the balance The repeatability test will quickly point out whether the Load Cell is operating properly or whether the problem is due to an electronic malfunction If a problem arises that is not coveredin this manual contact Ohaus Corporation for further information CHAPTER 2 DIAGNOSIS TABLE 2 1 BALANCE WILL NOT TURN ON WITH AC ADAPTER ALL MODELS SYMPTOM PROBABLE CAUSE REMEDY Balance will notturn on with AC adapter supplied Main power source is off Adapter defective Input connector at rear of balance is defective On Zero Off switch defec tive or actuating fingers on top housing defective Main PC Board is defec tive Check the main power source outlet for proper voltage Checkthe ac adapter voltage out
42. 2DM DMR DMU N NR NU Kit Load Cell replacement AV412 R U DM DMR DMU N NR NU AVG412 R U AV812 R U M MR MU N NR NU AVG812 R 5612 ASG612 Kit Load Cell replacement AV811 R AVG811 AVG811R 5811 ASG811 Kit Load Cell replacement AS1502 Kit Load Cell replacement AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8101 R U N M MR MU NR NU AVG8101 R U AS3101 ASG3101 AS6101 ASG6101 Kit Load Cell replacement AV8100 R AVG8100 AVG8100R AS8100 ASG8100 Adapter 230V AU Adapter 240V GB Adapter 230V EU Adapter 120V US Hardware kit See Note 1 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS Cont NOTES 1 All Models AV53 R U N NR NU M AVG53 R U AV212 R U DM DMR DMU N NR NU AVG212 R U AV412 R U DM DMR DMU N NR NU AVG412 R U AV811 R AVG811 R AV812 R U M MR MU N NR NU AVG812 R U AV2101 R U DM DMR DMU N NR NU AVG2101 R U AV4101 R U DM DMR DMU N NR NU AVG4101 R U AV8100 AVG8100 R AV8101 R U M MR MU N NRP NU AVG8101 R U AS153 ASG153 AS312 ASG312 AS612 ASG612 AS811 ASG811 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 All AV Models AV53 R N NR NU M AVGS53 R U AV212 R U DM DMR DMU
43. 3 2 6 Strain Gauge Calibration InCal Mechanism Removal Replacement Cont Motor Installation Cont 5 Referto Figure 3 19 hold the Motor down and install and tighten the 4 Motor screws Hold Motor Down Figure 3 19 Motor Installation 6 Referto Figure 3 18 and recheck the Top Gear alignment The Gear must be turned fully counter clockwise This is necessary to engage the InCal mechanism properly InCal Mechanism Installation 1 Remove the Motor Coupler as shown in Figure 3 20 2 Refer to Figure 3 21 and rotate the shaft clockwise and counter clockwise to ensure the operation is smooth if not replace the entire Load cell Weights Up Figure 3 21 Coupler Shaft Rotation 3 With the weights in the upper position reinstall the Motor Coupler as shown in Figure 3 20 4 Refer to Figure 3 18 and make sure the Top Gear is properly aligned when the Gear is turned fully counter clockwise 5 Referto Figure 3 13 and slide the InCal Mechanism into position on the Load Cell and install the InCal Mechanism screws 3 17 CHAPTER 3 REPAIR PROCEDURES 3 2 7 Load Cell MFR Replacement Figure 3 22 illustrates a typical MFR Load Cell shown with an InCal Mechanism installed The Load Cell illustration may vary from actual load cells Major components are shown InCal Weight InCal Motor Cable Connector Aluminum Sleeves Vertical Stop Screw Ratio Beam InCal Mecha
44. CDMU CN CNR CNU AVG2101C CU CR AV2102C CR CU CM CMR CMU CN CNR CNU AVG2102C CR CU AV3102C CR CU CN CNR CNU 5 12 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 10 PART NO 12103859 12103945 12103877 12103877 12103929 12103853 12103879 12103904 12103851 12103901 12103850 12103905 DESCRIPTION Wind Ring Square Cont AVG3102C CR CU AV4101C CU CR CN CNR CNU CDM CDMR CDMU AVG4101C CU AV4102C CU CM CMR CMU CN CNR CNU CR AVG4102C CR CU AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU Windring Round AV212C CR CU CDM CDMR CDMU CN CNR CNU AVG212C CR CU Positioning Pin Included in Hardware Kit Door Guide Included in Hardware Kit Function Label AV See Note 2 Function Label AS See Note 3 In use Cover See Note 1 LCD AV See Note 2 LCD AS See Note 3 Display Board Assembly Complete AV See Note 2 Display Board Assembly Complete AS See Note 3 Switch Set of 4 See Note 1 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 18 19 20 21 22 22 22 23 24 25 25 PART NO 12103862 12103902 12103863 12103864 12103866 12103882 12103865 12103923 12103855 42904907 42904902 DESCR
45. CTS 8 RTS 9 Remote Print External PRINT and or TARE switches may be installed as shown in the diagram Momentary contact switches must be used To enable this feature contact your local Ohaus office A 6 pin Mini DIN connector is provided when the optional second RS232 interface is installed Table 4 11 COM 2 INTERFACE PIN CONNECTIONS Pin Connections 5 reserved for future use 6 No connection Figure 4 7 COM 2 MINI DIN Connector USB Interface A USB Type B connector is provided when the optional USB interface is installed Figure 4 8 COM 2 USB Type B Connector 4 12 CHAPTER 4 TESTING 4 4 2 Communication The balance is equipped with an RS232 interface COM1 Some models are also equipped with a second RS232 interface COM2 Connecting the balance to a computer enables you to send commands from the computer and receive data such as displayed weight from the balance 4 4 3 Commands Commands listed in the following table will be acknowledged by the balance The balance will return ES for invalid commands TABLE 4 12 RS232 COMMAND TABLE Command Function IP Immediate Print of displayed weight stable or unstable P Print displayed weight stable or unstable CP Continuous Print OP ends Continous Print SP Print displayed stable weight SLP Auto Print stable non zero displayed weight SLZP Auto Print stable non zero weight an
46. Hous Load Cell Assembly ing The screws are located at the j corners of the Load Cell base See figure 3 6 Remove the Load Cell Load Cell Mounting Screws Bottom Housing 4 Disconnect the cable from the Load Cell 5 Refer to paragraph 4 3 and check and adjust if necessary the up and down stops Figure 3 6 Removing Load Cell 6 Install the replacement Load Cell using the 4 screws previously removed and connect the flexible cable 7 Replace the Load Cell Shield over the Load Cell The right hand side of the Load Cell Shield should be placed on the outside of the Load Cell enclosure 8 On AS models connect an external RS232 communication board and cable to the Main PC board 9 Temporarily reassemble the balance 10 See Appendix C Adventurer Pro Service Tools and follow instructions for replacing Load Cell 11 Open the balance remove the RS232 board and cable from the balance and assemble 12 Recalibrate the balance in accordance with instructions in Appendix A Linearity Calibra tion A 2 13 Check the performance of the balance using tests in section 4 2 3 7 CHAPTER 3 REPAIR PROCEDURES 3 2 REPAIR PROCEDURES LARGE FRAME AS and AV MODELS This section of the manual contains detailed disassembly procedures of the AV and AS model balances There are two physical sizes of balances for the AV and AS models large and small This section deals only with the larger frame models Housing measures 8 7 x
47. IPTION Cables Set of 4 See Note 1 RS232 Interface Board Assembly AV See Note 2 Level See Note 1 Weigh Below Cover See Note 1 Main PC Board Assembly AV MFR See Note 2 Main PC Board Assembly AS See Note 3 Main PC Board Assembly AV SG Feet Set of 4 See Note 1 Bottom Housing See Note 1 Load Cell Cable Strain Gauge AV212C CDM CDMR CDMU CN CNR CNU CR CU AVG212C CR CU AV412C CR CU CDM CDMR CDMU CN CNR CNU AVG412C CR CU AV812C CR CU CM CMR CMU CN CNR CNU AVG812C CR CU AV2101C CR CU CDM CDMR CDMU CN CNR CNU AVG2101C CR CU AV4101C CR CU CDM CDMR CDMU CN CNR CNU AVG4101C CU AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU Load Cell Cable MFR Load Cells over 410g AS3102 ASG3102 AV2102 C CM CMR CMU CN CNR CR CU N NR NU R U AVG2102 C CR CU R U AV3102 C CN CNR CNU CR CU N NR NU R U AVG3102 C CR CU R U AV4102 C CM CMR CMU CN CNR CNU CR CU N NR NU R U AVG4102 C CR CU R U 5 14 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 25 26 27 27 PART NO 42904903 12103884 42904505 42904515 DESCRIPTION Load Cell Cable MFR Load Cells up to 4109 AS64 ASG64 AS214 ASG214 AS313 ASG313 AV64 C CN CNR CNU CR CU R U AVG64C CR CU U AV114 C
48. Model 51g 1g 10g 25g 35g 51g AV53 210g 1g 50g 100g 150g 200g AV212 410g 1g 100g 200g 300g 400g AV412 810g 10 2009 4009 6009 8009 AV812 2100g 1g 500g 1000g 1500g 2000g AV2101 4100g 1g 1000g 2000g 3000g 4000g AV4101 8100g 19 20009 40009 60009 80009 AV8101 TABLE 4 4 AS MODELS TEST MASSES Capacity Test mass Load 1 Load 2 Load 3 Load 4 Mode 65 1g 15g 30g 45g 60g AS64 151 1g 40g 80g 120g 151g AS153 210 1g 50g 100g 150g 200g AS214 310 1g 75g 150g 225g 300g AS312 310 1g 80g 150g 240g 310g AS313 610 10 1500 3009 480g 610g AS612 810 1g 200g 400g 600g 810g AS811 1510 1g 380g 750g 1150g 1510g AS1502 3100 1g 780g 1500g 2300g 3100g AS3101 3100 1g 780g 1500g 2300g 3100g AS3102 6100 1g 1500g 3000g 4500g 6100g AS6101 8100 1g 2000g 4000g 6000g 8000g AS8100 1 Place the test mass on the balance and record the weight 2 Place Load 1 on the balance and press the ON ZERO Off button 3 Place the test load on the balance and record the weight 4 Place Load 2 on the balance and press the ON ZERO Off button CHAPTER 4 TESTING 4 2 3 Linearity Test Cont Test Cont 5 Place the test load on the balance and record the weight 6 Place Load 3 on the balance and press the ON ZERO Off button 7 Place the test load on the balance and record the weight 8 Place Load 4 on the balance and press the ON ZERO Off button 9 Place the test load on the balance and record the weight 10 The differe
49. N NR NU AVG212 R U AV412 R U DM DMR DMU N NR NU AVG412 R U AV811 R AVG811 R AV812 R U M MR MU N NR NU AVG812 R AV2101 R U DM DMR DMU N NR NU AVG2101 4101 R U DM DMR DMU N NR NU AVG4101 R U AV8100 R AVG8100 R AV8101 R U M MR MU N NR NU AVG8101 R U All AS Models AS153 ASG153 AS312 ASG312 AS612 ASG612 AS811 ASG811 AS1502 AS3101 ASG3101 AS6101 ASG6101 AS8100 ASG8100 5 8 CHAPTER 5 DRAWINGS AND PARTS LISTS Figure 5 2 Adventurer AS and AV Models Large Frames Exploded View 5 9 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS KEY NO awh ow hd PART NO 12103875 12103873 12103874 12103885 12103876 12103873 12103874 12103886 12103856 DESCRIPTION Draft Shield Glass 4 sides tall Draft Shield Top Draft Shield Frame Set Draft Shield Posts set of 4 tall AV64 CR CU CN CNR CNU AVG64R C CR AV114 R U CR CU OM CMR CMU CNR CNU C AVG114 R U C CR CU AV214 C CR CU R U AV264 R U C CR CU CM CMR CMU CNU CN CNR AVG264 R U C CR CU AS64 ASG64 AS214 ASG214 Draft Shield Glass 4 sides short Draft Shield Top Draft Shield Frame Set Draft Shield Posts set of 4 short AV213 R N NR NU C CR CU CM CMR CMU CN CNR CNU AVG213C CR CU
50. OK the load cell is defective Perform Repair Proce dures 3 1 5 or 3 2 5 Load Cell assembly de If the up stop and down stop adjustments fective were set incorrectly perform procedures in section 4 2 1 or 4 3 1 and reassemble and calibrate the balance if the balance fails to calibrate the load cell is defective Perform gt Repair Procedures 3 1 5 or 3 2 5 CHAPTER 2 DIAGNOSIS TABLE 2 6 BALANCE CANNOT CALIBRATE INTERNALLY AV MODELS ONLY SYMPTOM PROBABLE CAUSE REMEDY Balance can be turned on but will not calibrate using internal calibration Main PC Board is defec tive Load cell motor assem bly inoperative strain gauge only Load cell motor assem bly inoperative MFR only Verify that all other functions are opera tional If fuctions are OK continue with the procedure If certain functions fail or can not be set the Main PC board is defective Perform gt Repair Procedures 3 1 3 or 2 3 Remove the cover from the load cell Check the operation if any of the Internal drive motor The cover has to be con nected to the base housing and power applied Notice if any obstructions or belt drive is properly set in place Cycle the internalcalibration on and off severaltimes if the motor drive fails to respond it is defective and must be replaced Perform gt Repair Procedures 3 2 6 After replace mentof motor drive testthe unitfor proper functions a
51. ONTAMINANTS AND MOISTURE ARE PRESENT AND WILL DAMAGE THE LOAD CELL Critical Area Figure 3 58 Load Cell Critical Area 3 34 CHAPTER 3 REPAIR PROCEDURES 3 2 14 Installing the Ratio Beam Cont 3 Referto Figure 3 59 and check and clean the Magnet area To clean use a small wooden stick with double sided tape to remove any debris Magnet Area Figure 3 59 Load Cell Magnet Area 4 Referto Figure 3 56 and replace the Aluminum Sleeves 5 Refer to figure 3 60 and inspect the slotted area on the Ratio Beam and clean if necessary Vane Slotted Area Figure 3 60 Ratio Beam Vane Slotted Area 6 Refer to Figure 3 55 and carefully place the Ratio Beam into postion in the Load Cell 7 Refer to Figure 3 52 and replace the Aluminum Sleeves 8 Carefully slide the InCal Weight Arm into position see Figure 3 50 9 Donotuse tools in this step Install the screws washers and nuts for the Ratio Beam Arm and the InCal Weight Arm 3 35 CHAPTER 3 REPAIR PROCEDURES 3 2 14 Installing the Ratio Beam Cont 10 Insert the Centering Pins See Figures 3 44 and 3 45 11 Referto Figure 3 48 and hold the screw head while tightening the nuts for InCal Weight Arm 12 Refer to Figure 3 46 while holding the screws tighten the nuts on the Ratio Beam Arm 13 Refer to Figure 3 61 and turn the adjusting screw to it s original position approximately 45 degrees Vertical Adjusting
52. R CMU CNR CNU AVG114 R U C CR CU AV212C CDM CDMR CDMU CN CNR CNU CR CU AVG212C CR CU AV264 R U C CR CU CN CNR CMR CMU CNU CM AVG264 C U CR CU AV213 R U N NR NU C CR CU OM CMR CMU CN CNR CNU AVG213C CR CU R U AV214 C U R CU CR AV313 R U N NR NU C CR CU OM CMR CMU CN CNR CNU AVG313 R U C CR CU AV412C CDM CDMR CDMU CN CNR CNU CR CU AVG412C CR CU AV413 R U N NR NU C CR CU CM CMR CMU CN CNR CNU AVG413 R C CR CU AV812C CM CMR CMU CN CNR CNU CR CU AVG812C CR CU AV2101C CDM CDMR CDMU CN CNR CNU CR CU AVG2101C CR CU AV2102 C CM CMR CMU CN CNR CNU CR CU N NR NU R U AVG2102 C CR CU R U AV3102 C CN CNR CNU CR CU N NR NU R U AVG3102 C CR CU R U AV4101C CDM CDMR CDMU CN CNR CNU CR CU AVG4101C CU AV4102 C CR CU CM CMR CMU CN CNR CNU N NR R U NU AVG4102 C CR CU R U AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU AS64 ASG64 AS214 ASG214 AS313 ASG313 AS3102 ASG3102 CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont NOTES Cont 2 All AV Models AV64 C CR CU CN CNR AVG64 C CR CU U AV114 R CR CU CM CMR CMU CNR CNU AVG114 R U C CR CU AV212C CDM CDMR CDMU CN CNR CNU CR
53. Semi Automatic M Manual 4 5 Print Test Printing data to an external computer or printer requires that the communication parameters in the RS232 1 and or RS232 2 submenus be set to match external device communication parameters 1 Remove all weight from the Pan 2 Tare the balance 0 0g should be displayed 3 Place a calibrated mass on the Pan 4 Press Print button the computer and or a printer should indicate the mass value CHAPTER 4 TESTING 4 6 TESTING THE AC ADAPTER The AC Adapters are available with different input voltages Before testing the Adapter make sure the Adapter rating agrees with the power source being used All Adapters are rated with an output of 12 V ac at 500mA Adapters can fail by having shorted internal windings producing low voltage output or no output at all 1 Plug the AC Adapter in a suitable power source and measure the open circuit voltage on connector it should be 7 V dc to 17 V ac 2 Perform procedure Section 3 1 1 or 3 2 1 and remove Top Housing Plug the AC Adapter into the scale and measure the voltage at the AC input connector The output voltage should be 6 Volts ac minimum and 14 Volts ac maximum If the voltage is above this range replace the Adapter If the voltage is below this range either the Adapter is defective or the balance is drawing too much current 4 7 INCAL MOTOR TESTING This procedure describes how to test the calibration motor The InCal Motor receives power from t
54. TING CONT 6 Check the potentiometer in the motor by measuring the resistance across pins 3 and 5 it should be 5K Ohms nominal Then measure across pins 4 to 3 and rotate the motor shaft by hand to one stop and then the other stop The resistance should change uniformly throughout the range of movement Measure across pins 4 and 5 and again rotate the motor shaft in one direction and then the other The resistance should change uniformly If there is a short or open winding the motor must be replaced The potentiometer determines the shaft position by circuitry on the Main PC board 7 Ifthe motor appears to be good after all tests examine the lifting mechanism and belt drive Note If the Motor and InCal Mechanism funtion properly during this test procedure the Main PC board may be defective brown Figure 4 9 Motor Wiring Diagram CHAPTER 5 DRAWINGS AND PARTS LISTS 5 1 DRAWINGS This section of the manual contains an exploded view and parts lists The exploded view drawing is designed to identify the parts which can be serviced on the balance in the field NOTE In all cases where a part is replaced the balance must be thoroughly checked after the replacement is made The balance MUST meet the parameters of all applicable specifications in this manual If further technical information is needed in the United States call Ohaus Aftermarket toll free 1 800 526 0659 between 8 00 a m and 4 00 p m EST An Ohaus fa
55. U CN CNR CNU CN CNR N NR NU AVG2102 C CR CU U AV3102 C CR CU CN CNR CNU N NR NU U AVG3102 C CR CU U AV4102 C CR CU CM CMR CMU CN CNR CNU N NR NU R U AVG4102 C CR CU R U Kit Load Cell Replacement SG AV2101C CDM CDMR CDMU CN CNR CNU CR CU AVG2101C CR CU AV4101C CR CU CDM CDMR CDMU CN CNR CNU AVG4101C CU AV8101C CR CU CM CMR CMU CN CNR CNU AVG8101C CR CU Kit Load Cell Replacement SG AV412C CR CU CDM CDMR CDMU CN CNR CNU AVG412C CR CU AV812C CM CMR CMU CN CNR CNU CR CU AVG812C CR CU Kit Load Cell Replacement SG AV212C CDM CDMR CDMU CN CNR CNU CR CU AVG212C CR CU CHAPTER 5 DRAWINGS AND PARTS LISTS TABLE 5 2 REPLACEMENT PARTS LIST FOR AV AND AS LARGE FRAME MODELS Cont KEY NO 28 29 PART NO 42904906 42904900 DESCRIPTION InCal Motor AV64C CR CU CN CNR CNU AVG64C CR CU AV114C CR CU CMR CMU CNR CNU AVG114C CR CU AV212C CDM CDMR CDMU CN CNR CNU CR CU AVG212C CR CU AV213C CR CU OM CMR CMU CN CNR CNU AVG213C CR CU AV214C CR CU AV264C CR CU OM CMR CMU CN CNR CNU AVG264C CR CU AV313C CR CU CM CMR CMU CN CNR CNU AVG313C CR CU AV412C CR CU CDM CDMR CDMU CN CNR CNU AVG412C CR CU AV413C CR CU CM CMR CMU CN CNR CNU AVG413C CR CU AV812C CR CU OM CMR CMU CN CNR
56. ack to the replacement board 6 Reassemble the Balance 7 Check the performance of the Balance CHAPTER 3 REPAIR PROCEDURES 3 2 5 Strain Gauge Load Cell Replacement with InCal Load Cell Kits are available for replacement purposes for all AV model balances Each Kit is fully assembled and consists of metal base plate a Load Cell mounted to the base plate and a package of labels All adjustments such up stop and down stop limits travel of the Load Cell to safe limits have been factory set Check the label on the balance and verify the capacity and model before ordering a new load cell kit Figure 3 12 illustrates a typical strain gauge location NOTE Strain gauge load cells are supplied with calibration weights and drive mechanism The calibration drive mechanism is also available separately CAUTION Extreme care must be exercised so as not to twist or deform the Load Cell in any way Do not drop or hit the Load cell Any damage to the Load Cell can render it Load Cell Removal inoperative 1 Remove the balance cover in accordance Load Cell Shield with the procedures in paragraph 3 2 1 Mounting Screws 4 2 Remove the Load Cell Shield by grasping the sides and pulling upwards 3 Remove the 4 screws and washers that secure Load Cell to the Bottom Hous ing See Figure 3 12 Remove the Load Cell Load Cell Assembly Cable 4 Disconnect the cable s from the Load Cell Bottom Housin
57. atability Std Dev 0 10 1 Off Center Load g 0 20 2 Linearity g 0 20 2 CHAPTER 4 TESTING 4 2 1 Repeatability Test Repeatability is a word used in balance specifications meaning the Standard Deviation of a set of similar weight readings To determine whether a balance meets the calculated Standard Deviation value in the Specification Table 1 2 perform the following test Test 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 the mass on the center of the Pan Observe and record the reading 3 Remove the mass Reading should return to 0g 1 count 4 Repeatthis test for ten readings If the standard deviation of the readings is less than 1 count the balance passes the Repeatability Test Adjustment If the deviation for any set of readings using the same mass placed on the center of the Pan is greater than 1 count the balance does not meet the Repeatability Test specification Inspect and correct the following areas 1 Checkfor mechanical obstructions Any foreign object touching any part of the moving Pan can cause a balance to fail the Repeatability Test Inspect and correct as necessary 2 Anerror in the Off Center Load Test can affect the results of the Repeatability Test Inspect and correct if necessary See Off Center Load Test 3 Foreign material or debris located in the balance between the Pan Pan Support and t
58. cksum error Average piece weight too small Warning Average piece weight too small Warning Reference weight too small The weight on the platform is too small to define a valid reference weight 96 and parts Reference weight too low for accurate parts counting or percent weighing EEPROM Checksum error No user calibration is stored MFR load cell is new or EEPROM is corrupt Busy tare zero printing Unstable REMEDY InCal motor running longerthan normal check motor and mechanism replace main PC board Cycle power on off If error continues see Appendix C to restore EEPROM data Increase sample size Add ad ditional samples or continue to weigh with less accurate re sults Increase sample size Add additional samples or continue to weigh with less accurate re sults Increase sample size Increase sample size See error 53 Turn off LFT perform user cali bration Cycle power on off If error continues see Appendix C to restore EEPROM data Wait until completion Eliminate vibration and drafts Check load cell CHAPTER 3 REPAIR PROCEDURES 3 1 REPAIR PROCEDURES SMALL FRAME AS and AV MODELS This section of the manual contains detailed disassembly procedures of the AV and AS model balances There are two physical sizes of balances for the AV and AS models large and small This section deals only with the small frame models Housing measures 7 6 x 10 19 3 x 25 4 in cm Section
59. ctor shown in Figure 3 64 2 Measure the voltage when the Ratio Beam is at the bottom of the vertical stop 3 Measure the voltage when the Ratio Beam is carefully lifted with thumb and forefinger until itis at the top of the vertical stop 4 If the two voltage values and are not the same or 1 5 3 5V difference max 0 1V the vertical stop must be adjusted 5 Toadjustthe vertical stop referto Figure 3 22 turn the vertical adjustment screw and repeat steps 2 and 3 until the readings are within specifications step 4 3 37 CHAPTER 3 REPAIR PROCEDURES 3 38 CHAPTER 4 TESTING 4 1 TESTING After servicing the balance an operational test and various performance tests should be made to ascertain whether or not the balance meets specifications Turn the balance on and allow it warm up for atleast five minutes before performing these tests Make sure the test area is free from drafts and thatthe balance rests onalevel and vibration free surface The masses used for final calibration must be adjusted to ASTM Class 4 tolerance or better 4 1 1 Operational Test 1 Connect a functioning AC Adapter to the balance Power Jack located at the rear ofthe balance 2 Plug the AC Adapter into a suitable power source If the AC Adapter supplied with the balance is rated for a different voltage use an appropriate adapter to match the supply voltage 4 1 2 AV Models Segment Display Test 1 Turn the balance on by pressing ON ZERO Off a
60. ctory service technician will be available to provide assistance Outside the U S A please contact Ohaus Corporation 19 Chapin Road Pine Brook NJ 07058 USA www ohaus com Tel 973 377 9000 Fax 973 593 0359 MODEL DESIGNATIONS The following table explains the various model designations capacities readabilty and approvals used with the Adventurer Pro AV models and the Adventurer Pro SL models XXX XXXX XXX TYPE C Internal Calibration InCal READABILITY 0 1g D Dual Range CAPACITYINGRAMS 1 0 1g N NTEP Approval G GRAMS ONLY 2 0 01g M OIML Approval MODEL AV or AS 3 0 0019 R 2nd 5232 installed 4 0 0001 g USB equipped Example AVG 2101 NR This is a model Adventurer Pro AV with a 2100 gram capacity grams only with a readability of 0 10 NTEP approved and contains a second RS232 port CHAPTER 5 DRAWINGS AND PARTS LISTS Figure 5 1 Adventurer AS and AV Models Small Frames Exploded View 5 2 5 2 PARTS LISTS CHAPTER 5 DRAWINGS AND PARTS LISTS This section of the manual contains the replaceable parts for the Adventurer AS and AV Balances TABLE 5 1 REPLACEMENT PARTS LIST FOR AV AND AS SMALL FRAME MODELS KEY NO PART NO 1 12102937 2 12102938 3 12103941 3 12102940 3 12102939 4 12103944 DESCRIPTION Draft Shield Top AV53 M N NR NU U 5153 ASG153 ANG53 R U Draft Shield Body AV53 M N NR NU R U AS153 ASG153 AVGB53 R
61. d stable zero reading xP Interval Print x Print Interval 1 3600 seconds OP ends Interval Print H Enter Print Header Lines Z Same as pressing Zero Key Same as pressing Tare Key XT Establish a preset Tare value in grams preset tare value in grams PT Prints Tare weight stored in memory PM Print current mode weighing mode M Scroll to the next enabled mode PU Print current weighing unit U Scroll to the next enabled unit OFF Turns balance OFF ON Turns balance on CHAPTER 4 TESTING 4 4 3 Commands Cont TABLE 4 12 RS232 COMMAND TABLE Cont Command PSN PV Xit P X P xAW PAW BAW CW xCO xCU PCO PCU PTIME PDATE xAW Function Print Serial Number Print Version name software revision and LFT ON if LFT is set ON Set PC reference weight x in grams Must have an APW stored Print PC reference weight Set reference weight x in grams Must have reference weight stored Print percent reference weight Set Animal Weigh Level to x x 3 7 10 13 seconds Print Animal Weigh Level Begin Animal cycle Manual Mode Clear locked weight weight threshold in Manual and Semi Auto modes Set Checkweighing Over Limit in grams x weight in grams Set Checkweighing Under Limit in grams x weight in grams Print Checkweighing Over Limit Print Checkweighing Under Limit Print current time Print current date Set AW Mode x A Automatic x S
62. e s weighing range Three weight values are used zero a weight value at or near the midpoint of the balance s weighing range and a weight at or near the balance s specified capacity Calibration should be performed when the Load Cell and orthe Main PC board is replaced Table 1 1 in Chapter 1 specifies span linearity and alternate span calibration points A 1 Span Calibration When the balance is repaired it must be calibrated to ensure accurate weighing results Be sure to have the appropriate calibration weights available before beginning calibration 1 Press and hold the Menu Cal button until MENU is displayed then release the button CALIBRATE blinking is displayed 2 Press the Yes button to enter calibration menu 3 Press the Yes button to initiate span calibration Press the Exit button at any time to abort calibration 4 First the zero reading is taken Next the primary display shows the default span calibration weight value Press No to change to an alternate calibration weight Press Yes when the desired calibration weight is displayed 5 Place the specified calibration weight on the platform After calibration remove the weight from the pan A 2 Linearity Calibration When the balance has been repaired perform linearity calibration 1 Select LINEARITY from the CAL sub menu 2 Press the Yes button and follow screen instructions Use the weight values shown on the primary display 3 After calibration remove th
63. e the 3 screws as shown from the InCal Mechanism 3 Mounting Screws Figure 3 30 InCal Mechanism Mounting Screws 2 See Figure 3 24 and slide the InCal Mechanism to the right to remove Figure 3 31 Removing the InCal Mechanism 3 See Figure 3 26 Rotate shaft until weight is lowered then remove the weight 3 22 CHAPTER 3 REPAIR PROCEDURES 3 2 9 InCal Mechanism Removal Replacement Cont InCal Mechanism Replacement 1 Rotate shaft of the InCal Mechanism to it s lowest position and slide in the weight 2 Rotate the shaft until weight is in the top position Slide the new InCal Mechanism into position Fasten with the 3 screws previously removed do not fully tighten at this time Position the InCal Mechanism so that the spacing is between the InCal Weight and the InCal Weight Arms even on both sides as shown in Figure 3 32 Ji m Ld LLL T we N Z Weight to be centered on InCal Weight Arms Adjust Spacing Figure 3 32 InCal Mechanism Alignment 5 See Figure 3 33 and make sure the InCal Weight is lined up properly as shown on the InCal Weight Arm The Weight must be centered in the slots of the InCal Weight Arm PA EZIBEDELZr DIT i X Equal Spacing Figure 3 33 Centering InCal Weight 6 Tighten the 3 screws when properly aligned and recheck alignment 3 23 CHAPTER 3 REPAIR PROCEDURES 3 2 10 Position Sensor Assemb
64. e weight from the pan A 1 APPENDIX B SERVICE CALIBRATION B SERVICE CALIBRATION This section describes the Service Menu and sub menus which allows authorized service personnel to perform factory Span and Linearity calibrations Please refer to the Menu Structure diagram The Service Menu cannot be entered while LFT is ON START SERVICE SPAN CAL RETURN TO WEIGH MODE SERVICE LIN CAL Figure B 1 Service Mode Menu DISPLAY DUTY CYCLE B 1 Navigation In general a blinking item in the primary or secondary display indicates a choice is required Inthe case of ablinking sub menu onthe primary display pressing Yes On Zero Off button selects the displayed sub menu stop blinking and the first available menu item in the sub menu is shown on the secondary display blinking while pressing the No Print Unit button causes the next or previous sub menu to be shown on the primary display blinking B 2 Entering Service Menu 1 Turn the balance off 2 The Service Menu is entered by pressing and holding the On Zero Off and Tare buttons until the balance turns on this can take up to 10 seconds As the balance powers up the display advances through several screens MENU is displayed with RAMP flashing B 3 Ramp The first sub menu in the Service Menu is Ramp The ramp display shows the percentage of use of the A to D circuit The normal range for the ramp value is 25 75 The value is not as important as
65. f and if using an AC Adapter disconnect it from the balance On balances containing a draft shield remove the draft shield Remove the Pan from the balance Pan sizes and shapes vary Remove the Pan Support from the balance Remove the Wind Ring on round pans and Adapter ring on square pans Remove the 2 screws from the top of the balance then remove the EMC Plate y I9 If a battery is being used hold the balance on its side without touching the Load Cell Cone Remove the Battery Compartment Cover as shown in Figure 3 2 Remove the 4 AA batteries from inside the battery compartment and replace the Battery Compartment Cover 8 Remove the 4 Feet by unscrewing each counter clockwise 9 Remove the 4 cover screws The screws are in deep recessed holes See Figure 3 2 10 Turn the balance over in an upright position and carefully lift the Top Cover from the balance Bottom Housing Be careful as the Top Cover is connected by a cable to the Main Board Assembly 10 Unplug the cable from the Main Board Assembly Set the Top Cover aside 11 After repairs and or adjustments have been made reassemble the balance in the reverse order 3 1 CHAPTER 3 REPAIR PROCEDURES 3 1 1 Opening the Balance Cont AV MODELS AS MODELS Pan Pan Support Wind Ring Adapter Ring EMC Plate Cover Screws 2 Pan Pan Support Adapter Ring EMC Plate Cover Screws 2 AS612 AS1502
66. g Load Cell Installation 1 Refer to paragraph 4 4 and check and Figure 3 12 Removing Strain Gauge Load Cell adjust if necessary the up and down stops 2 Install the replacement Load Cell using the 4 screws previously removed and connect the flexible cables NOTE Load cells with internal calibration contain a power cable to the calibration motor drive mechanism 3 Replace the Load Cell Shield over the Load Cell Press firmly into place 4 Reassemble the balance a 228 Appendix Adventurer Pro Service Tools follow instructions for replacing Load ell CHAPTER 3 REPAIR PROCEDURES 3 2 6 Strain Gauge Calibration InCal Mechanism Removal Replacement This procedure describes how to remove the calibration motor and the calibration mechanism from the load cell There can be several reasons why the internal calibration does not function including a broken or jammed timing belt defective motor or defective main PC InCal Mechanism Removal To remove the InCal Mechanism proceed as follows 1 Remove the balance cover in accordance with procedures in paragraph 3 2 1 2 Perform procedure as described in paragraph 3 2 5 and remove the Strain gauge 3 Remove the screws from the InCal Mechanism as shown in Figure 3 13 T siae Off Motor InCal Mechanism InCal Mechanism Base Plate InCal Weights Du Figure 3 13 InCal Mechanism Identification 4 Slide the InCal mechanism off as shown i
67. he Main PC board when internal calibration is called for The Motor runs on 5 Volts dc and contains an internal potentiometer that is used to determine the motor position Figure 4 9 illustrates the wiring diagram of the motor To remove the calibration motor proceed as follows 1 Remove the balance cover in accordance with procedures in paragraph 3 2 1 2 Disconnect the motor cable from the Main PC board Refer to Figure 4 9 and apply 5 Volts dc to pin 1 Brown wire and 5 Volts dc to pin 2 Orange wire for about 10 seconds and note if the motor turns clockwise until it reaches it s internal stop Reverse the polarity on pins 1 and 2 and apply 5 Volts dc again for 10 seconds The motor should run in the opposite direction until the stop is reached Observe the calibration mechanism to see if any binding or restrictions occurs If the motor does not run continue with the next step CAUTION DO NOT APPLY POWER TO THE MOTOR LONGER THAN 10 SECONDS AS DAMAGE CAN BE CAUSED TO A GOOD MOTOR 4 Perform procedure as described in paragraph 3 2 7 and remove the load Cell 5 Ifthe motor failed to run remove the motor and repeat step 3 If the motor runs when free of the rest of the calibration mechanism the mechanism might be jammed and requires replacement or the internal potentiometer in the motor may be defective If the motor failed to run in both cases the motor is defective and should be replaced CHAPTER 4 TESTING 4 7 INCAL MOTOR TES
68. he Top Cover can cause the balance to fail the test 4 Environmental influences such as vibrations drafts or a non level surface can also cause failures 5 f the balance fails the test refer to table 2 1 Diagnostic Guide for assistance 4 2 2 Off Center Load Test The Off Center Load Test is used to determine whether displayed weight values are affected by moving the sample to different areas of the Pan Test 1 Place 1 2 of the balance capacity in the center of the Pan 2 Note the reading 3 Move the mass halfway between the center and the edge to the front of the Pan Note any differences in the displayed weight reading 4 Repeat this test for the back left and right positions of the Pan 5 Maximum allowable change in displayed weight readings is 1 count for each of the four positions If this reading is exceeded it usually indicates a defective Load Cell 4 3 CHAPTER 4 TESTING 4 2 3 Linearity Test This test is used to determine the linearity of the unit throughout its operating range The masses used to perform this test can be utility masses NOTE The balance must pass the Off Center Load Test and Re peatability Test before the Linearity Test may be performed Test Loads do not have to be test weights They can be anything that totals the load value The test mass can be anything that weighs near the test mass value TABLE 4 3 AV MODELS TEST MASSES Capacity Test mass Load 1 Load 2 Load 3 Load4
69. he top of the screen Click on the tab for the function you wish to perform If the default settings for communication have been changed click on settings and change the settings in the software to match KAset RS232 Port E C COMI COM2 Parity Check C Even Odd None Handshake None Software Hardware Default 1 APPENDIX C ADVENTURER PRO SOFTWARE SERVICE TOOL INSTRUCTIONS C 1 To Restore the EEPROM data 1 Record the following information from the balance to be repaired a Serial Number from the label on the side of the balance b Model Number from the label on the side of the balance c Allthe information from the label inside the battery compartment 2 Contact Ohaus Corporation in Pine Brook NJ and request the data file to down load The information recorded above will need to be provided with your request 3 After receiving the data file from Ohaus remove the batteries from the balance and power it from an AC adapter 4 Connectthe balance to your computer and start the Adventurer Pro Service Tool Software 5 Click on the tab labeled Restore EEPROM 6 Enter the S N of the balance and the IDNR number from the battery compartment XXX XX XX XXXX 7 Enter the path to the location of the data file or click the browse button to locate the file 8 Click on the Write Data File button 9 The software will indicate the download
70. how it changes It should increase as the weight on the balance is in creased The ramp display should remain constant without fluctua tions It is ok for the last digit to fluctuate as long as it stabilizes with the addition of a small mass 1 To view the Ramp value press the Yes button A number will appear on the upper portion of the display and should be constant Place different value masses on the balance from minimum to maximum capacity The reading will increase but should not fluctuate Example at the right is with no weight on the pan Reading will vary with other balances 2 To exit or skip the ramp function press the No button The balance advances to the Linearity calibration menu B 1 APPENDIX B SERVICE CALIBRATION B 4 Linearity Calibration 1 Press the Yes button to enter the Service Linearity Calibration function The display indicates the calibration weight on the first line and PPUT LOAD 1 on the second line The examples shown are for a 400g balance Press the No button to skip Place the indicated mass on the balance After a short period the bottom line of the display indicates ADD LOAD 2 The example shown is for a 400g balance Add the indicated mass shown on the first line After a short period of time the second line of the display indicates OFF LOAD 1 Remove the first mass from the balance After a short period of time the second line of the display indicates OFF LOAD 2 Re
71. i i 87x12x118 76x28x10 7 6x28x10 Balance Dimensions WxHxD in cm 10 193x 11 8 22x 11 8 22x 22 x 30 5 x 30 145x254 19x30 19 3 x 7 2 x 25 4 85 30 19 3 x 7 2 x 25 4 Net Weight Ib kg 101 46 3 1 1 4 10 4 5 3 5 1 6 6 8 3 1 3 5 1 6 1 6 CHAPTER 2 DIAGNOSIS 2 1 TROUBLESHOOTING This section of the manual contains troubleshooting information Information is contained to isolate specific problems using Table 2 1 Diagnostic Guide and Table 2 2 Error Codes Follow all directions step by step Make certain that the work area is clean and use care when handling components of the balance Use appropriate ESD device NOTE Repair procedures for small frame balances are described in Section 3 1 repair procedures for large frame balances are covered in section 3 2 2 2 DIAGNOSTIC GUIDE Table 2 1 is a diagnostic guide designed to help locate the problem area quickly and easily To use the table first locate the symptom that you are observing Follow the symptom column and review the probable cause column and remedy column The probable causes are listed with the most common cause first If the first remedy does not fix the problem proceed on to the next remedy Before attempting to repair the Balance read all chapters of this manual to familiarize yourself with the balance components and operation Do not attempt repairs unless you fully understand the operation of the balance Small frame balances measure W x D in cm 7 6 x 10
72. ings unstable Error 7 0 Unstable weight reading when defining the Eliminate vibration and drafts reference weight zero or tare Error 7 2 Custom units set outside the limits of the balance Use correct factors Error 8 0 or Weight reading below power On Zero limit Place platform on balance 8 2 Error 8 1 Weight reading exceeds Power On Zero limit Clear the pan Overload Overload on power up Check up down stops repair or replace load cell Error 8 3 Weight reading exceeds overload limit after Balanceis overloaded remove Overload power up excess weight Error 8 4 Weight reading below underload limit after Put platform on balance Underload power up Error 9 0 Internal fault See Appendix C to restore data Error 9 1 Hardware error Cycle power if fault continues replace main PC board Error 9 2 See error 9 1 Error 9 3 See error 9 1 Error 9 4 See error 9 1 Error 9 5 Requires service calibration Perform service calibration in Appendix B Error 9 6 See error 9 1 Error 9 8 User calibration missing Required for Perform calibrations in LFT ON only Appendix A CHAPTER 2 DIAGNOSIS 2 3 ERROR CODES FOR ALL MODELS Cont TABLE 2 7 ERROR CODES Cont ERROR CODE Error 9 9 Error 53 Error IDNR LOW rEF LOW REF WT REF WT Err REF Err Error Config Set Error LFT Set Error NVMEM x Display Indication PROBABLE CAUSE Internal calibration error EEPROM checksum error IDNR che
73. ircuit Board Replacement Cont 3 7 8 The Main Printed Circuit Board is fastened in place by 4 screws located on top of the board Remove the screws and the Printed Circuit Board Install the replacement Printed Circuit board using the 4 screws previously removed Connectall ofthe cables backto the replacement board The connectors are all different and cannot be connected improperly Make sure all cables are secured properly Reassemble the Balance Replace the batteries if previously removed Check the performance of the Balance and perform Linearity Calibration In Appendix A 2 3 1 4 RS232 Interface Printed Circuit Board Replacement AV Models only To replace the RS232 Interface Printed Circuit Board proceed as follows 1 The RS232 Interface Printed Circuit Board Install the replacement Printed Circuit board Connect the cable to the replacement board Reassemble the Balance Replace the batteries if previously removed Check the performance of the Balance and Remove the balance cover refer to section 3 1 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS Disconnect the cable from theRS232 Inter face printed Circuit Board assembly See Figure 3 5 RS232 Interface Board AV Models only Mounting Screws 2 is fastened in place by 2 screws located on top of the board Remove the
74. l Specifications 1 6 2 1 Balance Will Not Turn On with AC Adapter All Models 2 2 2 2 Balance Will Not Turn On Using Batteries eeseeeeeeee 2 2 2 3 Balance Does Not Respond to Front Panel Controls 2 4 2 4 No Display or Partial Display nn 2 4 2 5 Balance Cannot Calibrate Manually u en ee 2 5 2 6 Balance Cannot Calibrate Internally AV Models Only 2 6 2 7 Error o MN ERR EE 2 7 4 1 AV Performance Test 4 2 4 2 AS Performance Test Tolerances ana a ne cub ida 4 2 4 3 AV Models Test Masses 4 4 4 4 AS Models Test Masses ce 4 4 4 5 AV Models Test Mass Values ccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeaaaaeaaeaaaeaaaaaaaaeees 4 6 4 6 AS Models Test Mass Values aatia a Suelo ace Cet 4 6 4 7 AV Models Load Cell Up Stop Adjustment Tolerances 4 6 4 8 AS Models Load Cell Up Stop Adjustment Tolerance 4 7 4 9 AV Models Test Masses 4 9 4 10 1 Interface Pin Connections nn ae aaa 4 12 4 11 COM 2 Interface Pin Connections 4
75. light Display Size in cm 4x1 10x2 5 14 9X 16 2 non InCal model without draft ring 14 9X 16 2 19 3X7 2X254 22x8 5x30 19 3 7 2 25 4 Also operates on 4 AA batteries not included nternal calibration option avaiable C models 1 5 CHAPTER 1 INTRODUCTION TABLE 1 3 ADVENTURER AV MODEL SPECIFICATIONS Cont Item Number AV8100 AV2101C AV4101C Off Center Load 1 2 cap 1 2 distance Weighing Units Application Modes Stabilization Time s Calibration Display Type Display Size in cm Platform Size in cm 5 8x6 3 14 9x16 2 Dimensions W x H x D in cm 7 6x2 8x10 19 3x7 2x25 4 Net Weight Ib kg 81 1 8100 2100 4100 8100 01 0 1 0 2 0 19 0 29 Milligram Gram Kilogram Ounce Pound Carat Pennyweight Ounce Troy Grain Newton Hong Kong Tael Singapore Tael Taiwan Tael Momme Tical Baht Mesghal Tola Custom 2g 0 30 Weighing Parts Counting Percent Weighing Check Weighing Animal Weighing Display Hold Totalize To Capacity by Subtraction 2 AC Adapter Included Digital with Internal calibration External Weight 2 Line LCD w Backlight 4x1 10x2 5 6 6x7 1 16 8x18 8 7 3 3 11 8 22 8 5 30 3 5 1 6 Net Weight with InCal b Also operates on 4 AA batteries not included nternal calibration option avaiable C models TABLE 1 4 ADVENTURER AS MODEL SPECIFICATIONS AS64 AS214 AS153 5313 AS312
76. ll segments are enabled and displayed briefly then followed by a software revision number See Figure 4 1 for full display 2 Tare the balance The display should indicate a zero weight 000 00 OO III Een Figure 4 1 LCD Full Display for Models AV 4 1 3 AS Models Segment Display Test 1 Turn the balance on by pressing ON ZERO Off all segments are enabled and displayed briefly then followed by a software revision number See Figure 4 2 for full display 2 Tare the balance The display should indicate a zero weight SIV CH CI CI 0 20 AL CII LIS Figure 4 2 LCD Full Display for Models AS CHAPTER 4 TESTING 4 2 AV AND AS MODELS STRAIN GAUGE PERFORMANCE TESTS The following performance tests are used to evaluate the balance operation before and after repairs Each balance tested must meet the requirements specified in each test as well as the specifications listed in Table 1 2 and Tables 4 1and 4 2 Tolerance values are expressed in counts A balance which passes each of these three tests meets the manufacturing specifications TABLE 4 1 AV PERFORMANCE TEST TOLERANCES Repeatability Std Dev Off Center Load g Linearity g Repeatability Std Dev Off Center Load 9 Linearity 9 Repeatability Std Dev Off Center Load g Linearity g Repeatability Std Dev Off Center Load g f 0 030 Linearity g 0 020 0 020 Model AS6101 AS8100 Repe
77. ly Removal Installation Position Sensor Removal 1 Unscrew the three fastener screws of the Position Sensor Assembly 2 Raise the Position Sensor Assembly which is held by the magnetic field If the Position Sensor Assembly has to be changed unsolder Flexible Board see Figure ei zzevosz EZIBEDELZP UT ET x Unsolder 6 Contacts 3 Screws Figure 3 34 Removing Position Sensor Assembly Position Sensor Installation 1 Mount Position Sensor Assembly align centrally on the Ratio Beam Pin see Figure 3 35 and fasten with the three screws Please note The flange of the Position Sensor Assembly is prebent to ensure its precise positioning after it screwing on Please do not attempt to bend it straight Sensor Assembly Hole Figure 3 35 Ratio Beam Pin Alignment 4 Solder the Flexible Board connections 3 24 CHAPTER 3 REPAIR PROCEDURES 3 2 11 Unmounting the Load Cell from the Base Plate This procedure is necessary before proceeding with other repairs to the Load Cell Base Plate Removal 1 Refer to Figure 3 36 and remove the Weigh Below Hook and screw Mounting Screws Weigh Below Hook and Screw Figure 3 36 Base Plate Removal 2 Hold the MFR Load Cell and remove the 2 Load Cell Mounting Screws Figure 3 37 illustrates the components MFR Load Cell Mounting Screws 4 ie Below Hook and Screw Figure 3 37 Load Cell Mounting Components
78. move the second mass from the balance The display now breifly indicates LINEAR on the first line DONE on the second line The balance automatically advances to span calibration B 5 Span Calibration When in span calibration the display MENU is on the first line SPAN is shown on the second line t Press the Yes button to enter span calibration the display might briefly show 0 on the first line and BUSY on the second line The display then changes indicating the re quired calibration mass on the first line with instructions PUT WEIGHT on the second line Press the No button to skip Placethe required mass onthe pan After afew seconds the display indicates 09 on the first line with instructions to CLEAR PAN on the second line Remove masses from the pan After a shorttime the display will indicate SPAN on the first line and DONE on the second line It will then display MENU on the first line and END on the second line Press the Yes button the balance exits the service menu and returns to a weighing mode B 2 APPENDIX C AVENTURER PRO SOFTWARE SERVICE TOOL INSTRUCTIONS C SOFTWARE SERVICE TOOL INSTRUCTIONS This tool is used for three purposes 1 EEPROM data 2 Install a new load cell 3 Update the software in the balance To install the software run Setup exe After installation run the program Adventurer Pro Service tool The program will have 3 tabs across t
79. n figure 3 13 Motor Removal Before attempting motor removal the InCal mechanism must be removed 1 Refer to Figure 3 14 and remove the 4 motor mounting screws Motor Mounting Screws Figure 3 14 Motor Mounting Screws Location 3 15 CHAPTER 3 REPAIR PROCEDURES 3 2 6 Strain Gauge Calibration InCal Mechanism Removal Replacement Cont Motor Removal Cont 2 Referto Figure 3 15 and lift the Motor up from the InCal Mechanism just enough to disengauge the Timing Belt Referto Figure 3 16 and slide the Timing Belt off of the Top Gear and remove the Top Gear Lift Motor Top Gear Slide Timing Belt off of Timing Gear Figure 3 15 Disengauge Timing Belt 4 Refer to Figure 3 17 which illustrates the top Gear removed the Motor can now be re moved from the InCal Mechanism Motor Installation 1 Install the replacement Motor into position with the Timing Belt as shown in Figure 3 17 2 Slide on the Top Gear as shown in Figure 3 16 3 Referto Figure 3 15 lift the Motor slightly and position the Timing Belt on the Top Gear as shown 4 Referto Figure 3 18 rotate the Top Gear until it is in the position as shown while holding the Motor in place Figure 3 16 Removing Top Gear Gear Removed Remove Motor Figure 3 17 Top Gear Removed Align Top Gear Figure 3 18 Top Gear Alignment CHAPTER 3 REPAIR PROCEDURES
80. nce in the weights of the test mass should be within the tolerance in table 4 1 or 4 2 f not perform a linearity calibration see Appendix A and do the test again 4 2 4 Load Cell Adjustments Strain Gauge Models Only When the balance fails the Off Center Load test and or the Linearity test the Load Cell may require checking and adjusting of the down stop and up stop To make adjustments the Load Cell Assembly must be removed from the balance Perform procedures 3 1 1 3 1 5for AV models and 3 2 1 3 2 5for AS models and remove the Load Cell Assembly from the balance NOTE These procedures will require feeler gauges ranging from 0 40mm 0 16in to 0 65mm 0 026in Down Stop Adjustment Checking and adjusting the down stop 1 Place masses equaling mass 1 as indicated in Table 4 5 or 4 6 on the pan You should still be able to feel some movement with a slight downward push 2 Place masses equaling mass 2 as indicated in Table 4 5 or 4 6 on the pan You should feel no movement with a slight downward push If the above conditions are not met adjust the nuts and locktite when complete See Figure 4 3 Up Stop Up Stop Adjustment Nut Adjustment Nut Down Stop Down Stop Adjustment Nut j Adjustment Nut Figure 4 3 Load Cell End View Adjustments 4 5 CHAPTER 4 TESTING 4 2 4 Load Cell Adjustments Strain Gauge Models Only Cont Up Stop Adjustment Checking and
81. nd calibration Remove the cover from the load cell Check the operation if any of the Internal drive motor The cover has to be con nected to the base housing and power applied Cycle the internal calibration on and off several times if the motor drive fails to respond itis defective and mustbe replaced Perform gt Repair Procedures 3 2 8 After replacement of motor drive test the unit for proper functions and cali bration CHAPTER 2 DIAGNOSIS 2 3 ERROR CODES FOR ALL MODELS Adventurer AV and AS balances are equipped with software which will display an error condition when it occurs Table 2 7 Error Codes describes the various error codes which can appear on the display and specifies the probable reason TABLE 2 7 ERROR CODES ERROR CODE PROBABLE CAUSE REMEDY Error 2 0 Unstable reference weight This error code Eliminate vibration and drafts will only appear when using Parts Counting or Percent Weighing This is the same as error 7 Error 3 0 Incorrect calibration weight Incorrect or no calibration mass used when performing calibration procedure Errror 3 1 Internal calibration error Zero not repeating from start to end of calibration Error 3 2 Internal calibration error Unstable zero Error 3 3 Internal calibration error Incal Weight readings not re peating Error 3 4 Internal calibration error Incal weight readings not in correct range Error 3 5 Internal calibration error Incal weight read
82. nimum number of masses to total the calibration point value Bolded values are default settings WEIGHT ASTM 2 1 m m ro i o m m ro CHAPTER 1 INTRODUCTION TABLE 1 1 ADVENTURER AV MODELS CALIBRATION POINTS CLASS OIML Fi E2 E2 E2 E2 E2 E2 Fi Fi Fi E2 E2 E2 Fi Fi Fi MODEL AV53 AV64 amp C AV114 amp C AV264 amp C AV213 amp C AV313 amp C AV413 amp C AV212 amp C AV412 amp C AV812 amp C AV2102 amp C AV3102 amp C AV4102 amp C AV2101 amp C AV4101 amp C AV8101 amp C CAPACITY 51g 65g 110g 260g 210g 310g 410g 210g 410g 810g 2100g 3100g 4100g 2100g 4100g 8100g SPAN CAL POINTS g 30 40 50 40 50 60 50 100 150 250 100 200 150 200 250 300 200 300 400 50 100 150 200 100 200 300 400 200 300 400 500 600 700 800 1000 2000 1000 2000 3000 2000 3000 4000 500 1000 1500 2000 1000 2000 3000 4000 2000 3000 4000 5000 6000 7000 8000 LINEARITY CAL POINTS g 25 50 20 50 50 100 150 250 100 200 150 300 200 400 100 200 200 400 400 800 1000 2000 1500 3000 2000 4000 1000 2000 2000 4000 4000 8000 ALT SPAN CAL POINT g 30 40 40 60 50 150 100 150 200 250 200 300 50 100 150 100 300 400 200 300 400 600 700 800 1000 1000 2000 2000 3000 500 1000 1500 1000 3000 4000 2000 3000 4000 6000 7000 8000 1 3
83. nism InCal Weight Arm Base Plate MFR Block Overload Stop Cone Position Sensor Assembly InCal Weight Coil Wires Contact ze e Board DEE ann InCal Motor y Shield Main PC Board Cable Connector 4 42904622 3 273038123 2 1 Test Connector Ratio Beam Load Cell PCB InCal Motor Cable Figure 3 22 MFR Load Cell Components 3 18 CHAPTER 3 REPAIR PROCEDURES 3 2 7 Load Cell MFR Replacement Cont Load Cell Kits are available for replacement purposes for all AV and AS model balances Each Kit is assembled and consists of metal base plate a Load Cell mounted to the base plate and a package of labels Check the label on the balance and verify the capacity and model before ordering a new load cell kit Figure 3 23 illustrates a typical MFR load cell location NOTE Replacement MFR Load Cells are not supplied with InCal mechanisms When replacing some InCal Load Cells it is necessary to remove the InCal weight arm from the old Load Cell and install it on the new Load Cell The following procedures describe the disassembly of the MFR load cells in a progressive manner When the part that has been determined to be defective is reached it may be replaced according to the procedure itis described in The procedures are not stand alone you must start from the beginning Extreme care must AM SO as not to twist or deform the Load Cell in any way Do not drop or hit the Load cell A
84. ns see Appendix B Test balance 5 OHAUS 8 0 25 09 9 4 P N 80250994 A SERVICE MANUAL ADVENTURER AV and AS MODEL BALANCES
85. ny damage to the Load Cell can render it inoperative 1 Remove the Top Housing in accordance Lond Cell Shield with the procedures in paragraph 3 2 1 Mini se 4 2 Remove the Load Cell Shield by grasping the sides and pulling upwards 3 Remove the 4 screws and washers that ITI s secure Load Cell to the Bottom Hous i 2 LoadCell ing See Figure 3 23 Remove the Load Assembly Cell N E Cable NN Connectors 4 Disconnect the cable s Bottom Housing 5 Install the replacement Load Cell using the 4 screws previously removed and con Figure 3 23 Removing MFR Load Cell nect the flexible cables NOTE Load cells with internal calibration contain a power cable to the InCal motor drive mechanism 6 Replace the Load Cell Shield over the Load Cell Press firmly into place 7 On AS Models temporarily connect an external RS232 communication board and cable to the Main PC board 8 Temporarily reassemble the balance 3 19 CHAPTER 3 REPAIR PROCEDURES 3 2 7 Load Cell MFR Replacement Cont 9 See Appendix C Adventurer Pro Service Tools and follow instructions for replacing Load Cell 10 Remove the RS232 board and cable from the balance and assemble 11 Recalibrate the balance in accordance with instructions in Appendix A Linearity Calibra tion A 2 12 Check the performance of
86. play Tor Models AS dette eun aon ee ee 4 1 Load Gell End View Adjustments sans 4 5 e OTe 1g a1 Bret 0 emer mee a I TEE une 4 8 4 10 COM LEONNERION een 4 12 COM 2 NEL Eee Mem rm 4 12 COM 2 USB Type B COnNGCION uices on ni unit Ie eu ae uide 4 12 Motor Wining PISO SEI 4 16 Adventurer AS and Av Models Small Frames Exploded View 5 2 Adventurer AS and AV Models Large Frams Exploded View 5 9 SEVICE Mode Men merone p P X B 1 vi CHAPTER 1 INTRODUCTION 1 4 INTRODUCTION This service manual contains the information needed to perform routine maintenance and service on the Adventurer Pro AV Models and Adventurer SL AS Models Balances The contents of this manual is contained in five chapters three appendixes and are listed as follows Chapter 1 Introduction Contains information regarding service facilities tools test equipment calibration masses and specifications Chapter 2 Diagnosis Contains a diagnostic guide for troubleshooting problems and an error code table Chapter 3 Repair Procedures Contains disassembly assembly and replacement procedures Chapter 4 Testing Contains an operational test segment display tests and performance tests Chapter 5 Drawings and Parts Lists Contains exploded vie
87. put The ac adapter output voltage should match the specified voltage on the adapter If voltage is low or nonexistent replace the ac adapter If OK proceed Refer to section 3 1 1 or 3 1 2 and open the balance Leave the cable connected to the top housing Reconnect the ac adapter to the balance Check ac voltage at the input connector terminals Should read 12 Volts ac If voltage is not present replace the Input connector If OK pro ceed See Table 2 3 If the balance fails to turn on and On Zero Off switch is OK the Main PC Board is defective and should be replaced Repair Procedures 3 1 3 or 3 2 3 CHAPTER 2 DIAGNOSIS TABLE 2 2 BALANCE WILL NOT TURN ON USING BATTERIES See Note SYMPTOM PROBABLE CAUSE REMEDY Balance will not turn on Incorrect battery installa Check position of batteries with new batteries installed tion Wiring harness defective Refer to section 3 1 1 and open the bal or battery clips connec ance Leave the cable connected to the tion broken top housing Check dc voltage at the battery box con nector Voltage should read approximately 6 Volts dc If voltage is not present at the connector examine battery connectors for corrosion and wiring harness for breaks Clean any corrosion on the battery con nectors Repair breaks to wiring harness If OK proceed On Zero Off switch defec See Table 2 3 tive or actuating fingers on top housing defective Main
88. rations drafts or a non level surface can also cause failures If the balance fails the test refer to table 2 1 for assistance 4 3 2 Checking the Off Center Load 1 2 and tare 3 Level the balance Place test weight in the middle of the weighing pan Move test weight half way to the weighing pan edge and note down the print out display values which differ from zero with sign see examples Maximum allowable change in displayed weight readings is 1 count for each of the four positions If this reading is exceeded it usually indicates a defective Load Cell Figure 4 4 Off Center Load 4 8 CHAPTER 4 TESTING 4 3 3 Linearity Test This test is used to determine the linearity of the unit throughout its operating range The masses used to perform this test can be utility masses NOTE The balance must pass the Off Center Load Test and Re peatability Test before the Linearity Test may be performed Test Loads do not have to be test weights They can be anything that totals the load value The test mass can be anything that weighs near the test mass value TABLE 4 9 AV MODELS TEST MASSES Capacity Test mass Load 1 Load 2 Load 3 Load4 Model 65g 1g 15g 30g 45g 60g AV64 110g 1g 25g 50g 75g 100g AV114 210g 10 509 1009 1509 2009 AV213 260g 1g 70g 140g 210g 260g AV264 310g 1g 75g 150g 225g 300g AV313 410g 19 1009 2009 300g 400g AV413 2100g 19 5009 10009 15009 20009 AV2102 3100g 1g 750g 1500g
89. rer SL balances certain Ohaus special tools and test items arerequiredin addition to standard electronic toolkits These items are listed as follows 1 3 1 Special Tools and Test Equipment List 1 8 9 Alternate voltage Power Adapter if local power requirements do not match Balance Adapter voltage ratings A PC running Microsoft Windows NT 4 0 or later or Microsoft Windows 98 or later Adventurer Pro instruction manual Adventurer Pro Tools zip Set of Feeler gauges ranging from 0 40mm 0 16in to 0 65mm 0 026in Torque wrenches RS232 Communication Board required for AS Model testing P N 12103902 RS232 Connecting Cable Set required for AS Model testing P N 12103910 MFR Service Tool P N 80250383 10 RS232 Cable Balance to PC P N 80500525 1 3 2 Standard Tools and Test Equipment List 1 2 Standard Electronics Tool Kit Digital Voltmeter DVM Input impedance of atleast 10 megohms in the 1 Volt dc position Masses totaling up to 8000 grams are required Ohaus makes various calibration sets available Please contact your nearest Ohaus dealer for further details 1 4 TEST MASSES REQUIRED The masses required to test the Adventurer AV Models and Adventurer AS Models balances must meet or exceed the requirements of ASTM OIML Class specified The calibration points for the Adventurer AV Models are listed in Table 1 1 and the calibration points for the Adventurer AS Models are listed in Table 1 2 Use the mi
90. res 3 44 and 3 45 and carefully loosen and remove the nuts on the Ratio Beam while holding the screw heads to prevent movement This is very important Ratio Beam Hold Stationery Figure 3 46 Loosening Ratio Beam Nuts 3 29 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Cont 5 Remove the screws and washers as shown in Figure 3 47 Figure 3 47 Ratio Beam Screws and Washers Removed 6 Referto Figures 3 44 and 3 48 and carefully loosen and remove the nuts onthe InCal Weight Arm while holding the screw head to prevent movement This is very important InCal Weight Arm Hold Stationery Figure 3 48 Loosening InCal Weight Arm Nuts 3 30 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Cont 7 Remove the screws and washers as shown in Figure 3 49 Figure 3 49 InCal Weight Arm Screws and Washers Removed 8 Carefully slide the InCal Weight Arm as shown in Figure 3 50 Figure 3 51 illustrates the InCal Weight Arm removed InCal Weight Arm Figure 3 51 InCal Weight Arm Removed 3 31 CHAPTER 3 REPAIR PROCEDURES 3 2 13 Removing the Ratio Beam Cont 9 Refer to Figure 3 52 and remove the alumnum sleeves as shown Aluminum Sleeves Aluminum Sleeves Figure 3 52 Aluminum Sleeves Removed 10 Refer to Figure 3 53 and remove the centering pins as shown Centering Pins
91. screws and the Printed Circuit Board Cable Connector using the 2 screws previously removed perform Linearity Calibration A 2 Figure 3 5 Removing RS232 PC Board CHAPTER 3 REPAIR PROCEDURES 3 1 5 Strain Gauge Load Cell Replacement Load Cell Kits are available for replacement purposes for all AV and AS model balances Each Kit is fully assembled and consists of metal base plate a Load Cell mounted to the base plate and a package of labels All adjustments such up stop and down stop limits travel of the Load Cell to safe limits have been factory set Check the Label of the balance and verify the capacity and model before ordering a new load cell kit Figure 3 6 illustrates an AV Model with RS board CAUTION Extreme care must be exercised so as not to twist or deform the Load Cell in any way Do not drop or hit the Load cell Any damage to the Load Cell can render it inoperative 1 Remove the balance cover in accordance with the procedures in paragraph 3 1 1 Load Cell Mounting Screws 2 To remove the Load Cell Shield z grasp by sides and pull upwards UL xw 3 Remove the 4 screws and washers that Cable Connector secure Load Cell to the Bottom
92. stened in place by 3 screws located on top of the board Remove the screws and the Printed Circuit Board 4 Install the replacement Printed Circuit board using the 3 screws previously removed 5 Connect all of the cables to the replacement board The connectors are all different and cannot be connected improperly Make sure all cables are secured properly 6 Reassemble the Balance 7 Checkthe performance of the Balance and perform Linearity Calibration In Appendix A 2 3 2 4 RS232 Interface COM 1 or COM 2 RS or USB Printed Circuit Board Replacement To replace the RS232 Interface Printed Circuit Board COM 1 or COM 2 proceed as follows NOTE AS models do not have communications COM 2 board is optional on AV models 1 Remove the balance cover refer to section 3 2 1 CAUTION WHEN HANDLING THE PRINTED CIRCUIT BOARD HANDLE BY EDGES ONLY DO NOT TOUCH FOIL SIDE OF BOARD STATIC DISCHARGE MAY DAMAGE SOME COMPONENTS 2 Disconnect the cable from the RS232 Inter face printed Circuit Board assembly See Figure 3 11 3 The RS232 Interface Printed Circuit Board and the optional COM 2 board are both fastened with 2 screws located on top of the RS232 Interface RS232 COM2 BoardCOM1 Cable Board optional board Remove the screws and the Printed inns C t Circuit Board to be changed an 4 Installthe replacement Printed Circuit board Mounting using the 2 screws previously removed Screws 2 5 Connect the cable b
93. w drawings and parts list for each model Appendix A Calibration Contains span and linearity calibration procedures Appendix B Service Calibration Contains service calibration procedures Appendix C Adventurer Pro Service Tool Instructions Used to update software restore EEPROM data and when loadcells are changed Before servicing the balance you should be familiar with the Instruction Manual which is packed with every balance The procedures in this manual assumes the technician performing them has a working knowledge of the use of standard hand tools and the repair of precision instruments 1 2 SERVICE FACILITIES To service a balance the service area should meet the following requirements e Should be temperature controlled and meet the balance specifications for temperature environmental requirements See specifications for temperature ranges of the various models e Must be free of vibrations such as fork lift trucks close by large motors etc e Must be free of air currents or drafts from air conditioning heating ducts open windows people walking by fans etc e Area must be clean and air must not contain excessive dust particles e Work surface must be stable and level Work surface must not be exposed to direct sunlight or radiating heat sources e Use an approved ESD protection device 1 1 CHAPTER 1 INTRODUCTION 1 3 TOOLS AND TEST EQUIPMENT REQUIRED In order to properly service the Adventurer Pro or Adventu

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