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OHAUS adventurer+ Скачать руководство пользователя страница 24

ADV Service Manual P/N 83020790 A

Ohaus Corporation

www.ohaus.com

24

Figure 4-5. Off-Center Load Adjustments Diagram.

7. Repeat the Off-Center Load Test.
8. Turn the balance OFF.
9. Remove the Platform.
10. Install the 2 adhesive holes plug on the transducer shield.
11. Refer to paragraph 4.3.2, page 4-11 and re-assemble the balance.

NOTE

:

If the Off-Center Load Adjustment cannot be completed, refer to the

Precision Test/Adjustment.

4.2.3.4 Centered Load Test - Precision and Analytical Balances

The Centered load test is used to determine the span and linearity of the balance throughout its operating range

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Содержание adventurer+

Страница 1: ...rporation 19A Chapin Road P O Box 2033 Pine Brook NJ 07058 2033 ADVENTURER ANALYTICAL AND PRECISION BALANCES SERVICE MANUAL Ohaus Corporation 19A Chapin Road P O Box 2033 Pine Brook NJ 07058 2033 973...

Страница 2: ...3 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...

Страница 3: ...NFORMATION OF OHAUS CORP THE CONTENTS HEREOF MAY NOT BE USED NOR REPRODUCED IN WHOLE OR IN PART WITHOUT THE WRITTEN AUTHORIZATION OF OHAUS CORPORATION COPYRIGHT 2003 OHAUS CORPORATION PART NUMBER 8302...

Страница 4: ...15 3 2 1 Diagnosis 15 3 3 ERROR CODES 16 4 MAINTENANCE PROCEDURES 17 4 1 PREVENTIVE MAINTENANCE 17 4 1 1 Preventive Maintenance Checklist 17 4 2 TESTING 17 4 2 1 Operational Test 17 Segment Display T...

Страница 5: ...poration www ohaus com 5 5 2 Open COM PORT setting window 39 5 3 Restore EEPROM Function 40 5 4 Replace Loadcell Function 40 5 5 Replace PCB Function 41 5 6 Download Software 41 5 7 Diagnostic Functio...

Страница 6: ...enance procedures performance tests and adjustments disassembly replacement procedures and calibration procedures Chapter 5 AR Series Service Tool Describe how to use the service tool Chapter 6 Drawin...

Страница 7: ...tal Voltmeter DVM Input impedance of at least 10 megohms in the 1 Volt dc position 2 Nut driver 6mm 3 Hex or Allen key wrenches metric 4 Other assorted hand tools tweezers adjustable open wrenches etc...

Страница 8: ...ull capacity by subtraction Stabilization Time s 4s 3s 2s Sensitivity Drift 4ppm C 10ppm C Operating Temp Range 50 to 86 F 10 to 30 C Power Requirements 8 5 14 5V 50 60Hz 4VA or 8 5 20V 4W Calibration...

Страница 9: ...lout With power applied press all segments will appear briefly followed by a software revision number when plugged in first time or after a power interruption and then 0 00g Allow 20 minutes warm up t...

Страница 10: ...Tare 10 Pre set Brutto 11 NET weighing 12 Stable mark 13 Negative symbols 14 Zero symbols 2 4 TURNING ON THE BALANCE The Adventure balance is ready to operate When the balance is first turned on and i...

Страница 11: ...rol switches Figure 2 1 illustrates how the menus are structured The Adventurer balances must be properly set in order for test results to be valid The setup menu permits you to activate available wei...

Страница 12: ...and filtered The signal then goes through a current amplifier then fed to the force coil which interacts with the Magnet returning the Ratio Beam to the null position In the null position light should...

Страница 13: ...d for producing a constant current source Constant current driver circuitry The two switches are transfer switches for the constant current to the two force coils to compensate the measured weight Wei...

Страница 14: ...ENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 14 TXD DTR and DSR are provided and go to a driver receiver IC located on the RS232 board Figure 2 3 Adventurer Balance Block Diag...

Страница 15: ...l 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 3 2 1 Diagnosis 1 Isolate an...

Страница 16: ...Weight reading exceeds overload limit Clear platform Error 8 4 Weight reading below underload limit Put platform on balance Error 9 5 Calibration information is error Send the balance back to Ohaus an...

Страница 17: ...1 Remove the Platform and Sub Platform on 4kg balances and inspect and clean the area beneath the Platform 2 Clean the outside of the balance using a damp cloth with water CAUTION DO NOT USE CHEMICAL...

Страница 18: ...s within the balance s weighing range Three weight values are used zero a weight value within the balance s weighing range and a weight value at or near the balance s specified capacity 4 2 2 1 Calibr...

Страница 19: ...xiliary area Then release the switch 2 Press CAL is displayed in the main area SPAN is displayed in auxiliary area then press LINEAR is display in auxiliary area Press to enter linearity calibration 2...

Страница 20: ...e 1 2 depending upon the model Before proceeding with the following tests all the procedures starting with paragraph 4 2 must have been accomplished on the Balance first 4 2 3 1 Precision Test Precisi...

Страница 21: ...he right edge position and note the reading Move the mass halfway to the front of the Platform and note the reading Note any differences in the displayed weight reading at all positions Maximum allowa...

Страница 22: ...he balance is free from drafts and is level The balance is very sensitive and adjustments will be affected 5 Plug the power cord into the balance and turn the balance on 6 Place 1 2 of the balance cap...

Страница 23: ...his test for the back left and right positions Maximum allowable change in displayed weight readings is 5 counts for each of the four positions If the displayed weight readings change more than 5 coun...

Страница 24: ...10 Install the 2 adhesive holes plug on the transducer shield 11 Refer to paragraph 4 3 2 page 4 11 and re assemble the balance NOTE If the Off Center Load Adjustment cannot be completed refer to the...

Страница 25: ...4 150g 200g 300g 400g 400g 100g 500g 1500g 2000g 3000g 4000g 4000 1000g 4000g TABLE 4 5 CENTER LOAD TEST MASSES ANALYTICAL CAPACITY AR64 AR124 AR224 Ref Wt 1g 1g 1g Load 1 10g 10g 10g Load 2 20g 25g 1...

Страница 26: ...9 Repeat steps 4 through 8 except use Load 2 Load 3 or Load 4 as applicable Record the Mean weight readings as Mean 2 Mean 3 or Mean 4 respectively 10 Determine the Mean of ALL weight readings Mean 0...

Страница 27: ...assembly procedures 4 3 1 Disassembling the Balance The Adventure balance can be disassembled with relative ease using common hand tools Refer to Figures 5 1 5 2 and 5 3 which are exploded view drawin...

Страница 28: ...of the Base Make sure the cover front tabs are in position on the Base 3 Secure the Top Cover to the Base with the one screw previously removed 4 For an balance with a Draft Shield a Replace the Draft...

Страница 29: ...nsducer Shield in place Remove the screws 3 Remove the Transducer Shield 4 Disconnect the Transducer Cable from the Transducer 5 Locate the three screws in the center of the Transducer which secure th...

Страница 30: ...lexure Arm 4 Replace Top Flexure Arm by placing into position on the Transducer Frame and secure with the four screws previously removed 4 4 2 3 Bottom Flexure Arm Removal Installation Precision 1 Ins...

Страница 31: ...that it is defective and requires replacement proceed as follows 1 Refer to paragraph 4 3 1 page 4 10 and open the balance 2 Locate the four screws holding the Transducer Shield in place Remove the sc...

Страница 32: ...ndicator up and down by moving the Sensor Board up and down slightly on the side with the two screws which should be slightly tightned If the Sensor Board is improperly positioned the Shaft indicator...

Страница 33: ...Locate the four screws holding the Transducer Shield in place Remove the screws 3 Remove the Transducer Shield 4 Remove the Ratio Beam per paragraph 4 4 2 4 5 Remove the Position Sensor Board as per p...

Страница 34: ...er Shield in place Remove the screws 3 Remove the Transducer Shield 4 Disconnect the Transducer Cable from the Transducer 5 At the bottom of the Base remove the two M4 Screws M4 Ribbed Lock Washers wh...

Страница 35: ...Screws and Washers one at each Flexure point 9 Examine each Flexure Link Each one must be perfectly straight Replace any Flexure Link which is bent twisted cracked or deformed in any manner 10 To repl...

Страница 36: ...ure with four screws 17 Refer to paragraph 4 3 2 page 4 11 and re assemble the balance 18 Conduct Performance Tests 4 4 4 Main Printed Circuit Board PCB Replacement Precision and Analytical Balances R...

Страница 37: ...pull carefully across the cover until the membrane switch is free of the cover 4 On the Top Cover remove any adhesive residue from the Top Cover CAUTION IN THE NEXT STEP USE CAUTION WHEN APPLYING THE...

Страница 38: ...AR Series Service Tool 5 1 Run ARServiceToolDealer exe ARServiceToolDealer exe is used by service part and dealer and files of Data5 ohs and Data6 ohs are given Get the version information of the serv...

Страница 39: ...URER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 39 5 2 Open COM PORT setting window Accord the setting of scale to set service tool COM PORT setting The default setting is 2400 7 n...

Страница 40: ...ion Enter Serial Number and IDNR Number select image file and then click Write Image File button to restore EEPROM The image file can be got from OHAUS by the SN and IDNR number 5 4 Replace Loadcell F...

Страница 41: ...Service Manual P N 83020790 A Ohaus Corporation www ohaus com 41 5 5 Replace PCB Function Enter Serial Number then click Start button to replace PCB 5 6 Download Software Click change button to selec...

Страница 42: ...RER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 42 Click Start Download button and waiting to download file 5 7 Diagnostic Function Send command by Entering command and clicking Send...

Страница 43: ...n 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 ap...

Страница 44: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 44 Figure 6 1 Overall Exploded View of Precision Balance without drift shield...

Страница 45: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 45 Table 6 1 Precision Balance without Drift Shield Replacement Parts List...

Страница 46: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 46 Figure 6 2 Exploded View of Precision Transducer without drift shield mode Table 6 2 Precision Transducer Parts List...

Страница 47: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 47 Figure 6 3 Overall Exploded View of Precision Balance with drift shield...

Страница 48: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 48 Table 6 3 Precision Balance with Drift Shield Replacement Parts List...

Страница 49: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 49 Figure 6 4 Exploded View of Precision Transducer with drift shield mode Table 6 4 Precision Transducer Parts List...

Страница 50: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 50 Figure 6 5 Overall Exploded View of Analytical Balance...

Страница 51: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 51 Table 6 5 Analytical Balance Replacement Parts List...

Страница 52: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 52 Figure 6 6 Exploded View of Analytical Transducer Table 6 6 Analytical Transducer Parts List...

Страница 53: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 53 Figure 6 7 Schematic drawing of main board 1...

Страница 54: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 54 Figure 6 8 Schematic drawing of main board 2...

Страница 55: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 55 Figure 6 9 Schematic drawing of main board 3...

Страница 56: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 56 Figure 6 10 Main board assembly Top...

Страница 57: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 57 Figure 6 11 Main board assembly Bottom...

Страница 58: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 58 Figure 6 12 Schematic drawing of Cell board...

Страница 59: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 59 Figure 6 13 Main board assembly Top...

Страница 60: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 60 Figure 6 14 Main board assembly Bottom...

Страница 61: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 61 Figure 6 15 Schematic drawing of RS232 board...

Страница 62: ...ADVENTURER Service Manual P N 83020790 A Ohaus Corporation www ohaus com 62 Figure 6 16 Main board assembly Top SERVICE MANUAL ADVENTURER BALANCES P N 83020790 A...

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