OHAUS EXPLORER - Page 6

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TABLE OF CONTENTS (Cont.)
3.1.19 Monoblock Load Cell Removal from High Capacity Top Loader
Balance ........................................................................................3-14
3.1.20 Calibration Motor Removal from High Capacity Top Loader
Balance ........................................................................................3-14
3.1.21 Position Sensor Assembly Removal from Monoblock in High
Capacity Top Loader Balance ......................................................3-15
3.1.22 Installing the Position Sensor Assembly for Monoblock High Capacity
High Capacity Top Loader Balance..............................................3-15
3.1.23 Removing the Force Coil Lever assembly from Monoblock in
High Capacity Top Loader Balance..............................................3-15
3.1.24 Installing the Force Coil Lever Assembly in Monoblock in High
Capacity Top Loader Balance ......................................................3-16
3.1.25 Installing Monoblock and Assembling Position Sensor for High
Capacity Top Loader Balance ......................................................3-16
3.1.26 Changing Servomotor on High Capacity Top Loader Balance .....3-17
3.1.27 Vertical Stop Adjustment for Monoblock in High Capacity Top
Loader Balance ............................................................................3-18
3.2 Replacement of Major Components......................................................3-19
3.2.1 Analytical Balances Main Printed Circuit Board (PCB).................3-19
3.2.2 Analytical Balance Position Sensor PC Board .............................3-21
3.2.3 Precision Top Loader Balances Main Printed Circuit board (PCB)3-21
3.2.4 High Capacity Top Loader Balance Main Printed Circuit Board (PCB)
and Power Supply (PCB)..............................................................3-23
3.2.5 High Capacity Top Loader Balance Connector Printed Circuit
Board (PCB) .................................................................................3-24
3.2.6 Removing the Display Module on Explorer Precision Top Loader
Balances.......................................................................................3-24
3.2.7 Removing the Display Module on Explorer High Capacity Top
Loader Balances...........................................................................3-25
3.2.8 Display Printed Circuit Board........................................................3-26
3.2.9 Membrane Switch Replacement ...................................................3-27
3.2.10 Replacing the Display...................................................................3-28
3.2.11 Removing the Display Module Voyager and Explorer Pro Models3-29
3.2.12 Display PCB/LCD Assembly Replacement ..................................3-30
3.2.13 Bulb Replacement ........................................................................3-31
CHAPTER 4 TESTING
4.1 Testing ..........................................................................................4-1
4.1.1 Operational Test .............................................................................4-1
4.1.1.1 Segment Display Test .......................................................4-1
4.2 Performance Tests All Balances.............................................................4-2
4.2.1 Precision/Repeatability Test ...........................................................4-2
4.2.2 Off-Center Load Test.......................................................................4-2
4.2.3 Linearity Test ..................................................................................4-8
4.2.4 RS232 Communication Test...........................................................4-9