background image

TABLE OF CONTENTS 

LIST OF ILLUSTRATIONS 

FIGURE NO. 

TITLE   

Page No. 

 

3-156 

Temperature Sensor extends into a hole in the Magnet .....................................3-52 

 

3-157 

Position Sensor on the Magnet ...........................................................................3-53 

 

3-158 

Pin centered in PSB ............................................................................................3-53 

 

3-159 

Load Cell PCB Test Connector ...........................................................................3-54 

 

3-160 

Test Connector Detail..........................................................................................3-54 

 

3-161 

Up/Down Stop Screw ..........................................................................................3-54 

 4-1 

Segment 

Display ...................................................................................................4-1 

 

4-2 

Mass Placement Locations for Off-Center Load Test ...........................................4-3 

 

4-3 

Off-Center Load Adjustment Screws on Analytical models...................................4-4 

 

4-4 

Off-Center Load Adjustment Screws on Precision models ...................................4-4 

 

4-5 

Off-Center Load Adjustments................................................................................4-4 

5-1   Precision Top Load Balance Housing & Internal Parts..............................................5-2 
5-2 

Round Pan Block Style InCal Balance: Housing & Internal Parts..............................5-4 

5-3 

Square Pan Block Style Square Pan Balance: Housing & Internal Parts ..................5-6 

5.4 

Precision Draft Shield Balance with Draft Shield: Housing & Parts ...........................5-8 

5.5 

Analytical Balance: Housing & Internal Parts ..........................................................5-10 

5.6 

Precision Balance Load Cell & Parts .......................................................................5-12 

5.7 

Analytical Balance Load Cell & Parts ......................................................................5-14 

5.8 

Block Style InCal Load Cell & Parts.........................................................................5-26 

 C-1  Com 

Port 

Configuration 

Menu.............................................................................. C-1 

 

C-2 

The Software Service Tool’s Restore EEProm Tab ............................................. C-2 

 

C-3 

The Software Service Tool’s Replace Load Cell Tab........................................... C-3 

 

C-4 

The Software Service Tool’s Replace PCB Tab................................................... C-4 

 

C-5 

The Software Service Tool’s Download Software Tab ......................................... C-5 

 

C-6 

The Software Service Tool’s Diagnostics Tab...................................................... C-6 

Ohaus Corporation  www.ohaus.com 

vii 

Pioneer™ Balances Service Manual 

Summary of Contents for Pioneer

Page 1: ... MANUAL Ohaus Corporation 19A Chapin Road P O Box 2033 Pine Brook NJ 07058 2033 973 377 9000 Ohaus Pioneer service Manual Ohaus Pioneer service Manual Ohaus Pioneer service Manual Ohaus Pioneer service Manual ...

Page 2: ...3 3 2 Disassembly of Precision Balances with Internal Calibration 3 4 3 3 3 Removing Internal Calibration Weights 3 5 3 3 4 Servicing the Internal Calibration Mechanism 3 5 3 3 5 Reassembling the Internal Calibration Mechanism 3 6 3 3 6 Disassembly of Precision Balances with InCal Mechanism 3 6 3 3 7 Removing the Load Cell Precision Balances 3 7 3 3 8 Load Cell Disassembly Precision Balances 3 8 3...

Page 3: ...Operational Test 4 1 4 3 Segment Display Test 4 1 4 4 Performance Tests 4 2 4 4 1 Precision Test 4 2 4 4 2 Off Center Load Test 4 3 4 4 3 Off Center Load Adjustment for Precision Models 4 4 4 4 4 Off Center Load Adjustment for Analytical Models 4 5 4 4 5 Off Center Load Adjustment for Block Style Models 4 6 4 4 6 Repeatability Test 4 7 4 4 7 Linearity Test 4 9 CHAPTER 5 DRAWINGS AND PARTS LISTS 5 ...

Page 4: ...odels 4 2 4 4 Repeatability Worksheet 4 8 5 1 Precision Top Load Balance Housing Internal Parts 5 3 5 2 Round Pan Block Style InCal Balance Housing Internal Parts 5 5 5 3 Square Pan Block Style Square Pan Balance Housing Internal Parts 5 7 5 4 Precision Draft Shield Balance with Draft Shield Housing Parts 5 9 5 5 Analytical Balance Housing Internal Parts 5 11 5 6 Precision Balance Load Cell Parts ...

Page 5: ...t is lifted out 3 12 3 32 Magnets must be clean 3 12 3 33 Position Sensor Board 3 13 3 34 Adjust position of Sensor Board until Err8 X does not appear 3 13 3 35 Position Sensor Board 3 14 3 36 Installing Ratio Beam clearing the Up down Stop Screw 3 15 3 37 Precision Load Cell 150g to 310g top with Service Fixture attached 3 15 3 38 Service Fixture for 510g to 4100g Precision Load Cell attached to ...

Page 6: ...e Up Down Stop Screw 3 29 3 78 Service Fixture is installed prior to installing Ratio Beam Flexures 3 29 3 79 Sideways Motion Stop Plate and Up Down Stop Screw 3 29 3 80 Elongated holes on Ratio Beam Flexures go on the bottom 3 29 3 81 Installing the Magnet Half 3 30 3 82 Four screws on Magnet Half 3 30 3 83 Position Sensor Board 3 30 3 84 3 wire cable soldered to Contact Board 3 30 3 85 Installin...

Page 7: ... 46 3 130 Aluminum Sleeves removed 3 47 3 131 Up Down Stop Screw 3 47 3 132 Centering Pins removed 3 47 3 133 Removing the Ratio Beam 3 47 3 134 Ratio Beam Removed 3 47 3 135 Removing the Ratio Beam 3 47 3 136 Ratio Beam Removed 3 47 3 137 Removing the Aluminum Sleeves 3 47 3 138 Ratio Beam Weight Removal 3 48 3 139 Load Cell Critical Area 3 48 3 140 Magnet Area 3 48 3 141 Ratio Beam Vane Slotted ...

Page 8: ...nternal Parts 5 2 5 2 Round Pan Block Style InCal Balance Housing Internal Parts 5 4 5 3 Square Pan Block Style Square Pan Balance Housing Internal Parts 5 6 5 4 Precision Draft Shield Balance with Draft Shield Housing Parts 5 8 5 5 Analytical Balance Housing Internal Parts 5 10 5 6 Precision Balance Load Cell Parts 5 12 5 7 Analytical Balance Load Cell Parts 5 14 5 8 Block Style InCal Load Cell P...

Page 9: ... full manual can be found at http the checkout tech com estore catalog We also offer free downloads a free keyboard layout designer cable diagrams free help and support http the checkout tech com the biggest supplier of cash register and scale manuals on the net ...

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