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OHAUS DISCOVERY BALANCE User Manual

OHAUS DISCOVERY BALANCE
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SERVICE MANUAL
DISCOVERY BALANCE
Ohaus Corporation 19A Chapin Road, P.O. Box 2033, Pine Brook, NJ 07058-2033 (973) 377-9000

Table of Contents

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OHAUS DISCOVERY BALANCE Specifications

General IconGeneral
WeightVaries by model
ModelDiscovery
CapacityVaries by model, up to 310 g
Pan SizeVaries by model
DisplayLCD
Power SupplyAC adapter
CalibrationInternal calibration
Weighing UnitsMilligram; Gram; Kilogram; Ounce; Pound; Carat; Grain; Newton
InterfaceRS232, USB

Summary

Chapter 2 Diagnosis

2.1 Troubleshooting

General guidance for identifying and resolving common balance issues.

2.3 Error Codes

Lists error codes, their causes, and recommended remedies.

Chapter 3 Repair Procedures

3.2 Load Cell Removal and Disassembly

Overview of load cell issues and the start of removal procedures.

3.2.1 Load Cell Removal

Detailed steps for safely removing the load cell from the balance.

3.2.2 Load Cell Disassembly

Instructions for disassembling the load cell for inspection or repair.

3.2.4 Load Cell Assembly

Steps for reassembling the load cell after disassembly or repair.

3.2.5 Installing the Load Cell

Procedure for installing a new or reassembled load cell back into the balance.

Chapter 4 Testing

4.2.2 Adjusting Off Center Load

Procedure for correcting off-center load errors using adjustment screws.

Appendix B Service Calibration

B.4 Service Span Calibration

Procedure for performing span calibration within the service menu.

B.5 Service Internal Calibration (InCal)

Procedure for performing internal calibration via the service menu.

Appendix C Software Service Tool Instructions

C.1 To Restore the EEPROM data

Steps to restore EEPROM data using the service tool.

C.2 To Replace a Load Cell

Instructions for using the software tool when replacing a load cell.

C.3 Install New Main Printed Circuit Board (PCB)

Using the tool to install a new main PCB.

C.4 Update the Software in the Balance

Procedure for updating the balance's firmware using the tool.

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