CHAPTER 1 - GETTING STARTED
MB90 MB120 Series Service Manual
1
Ohaus Corporation www.ohaus.com
CHAPTER 1 - GETTING STARTED
1.1 Introduction
This service manual contains the information needed to perform routine maintenance and
service on the Ohaus MB90&MB120 Moisture Analyzer. Familiarity with the scale’s Instruction
Manual is assumed. The contents of this manual are summarized below:
Chapter 1 Getting Started
– Contains information on service facilities, tools and test
equipment, specifications, and the control functions of the scale.
Chapter 2 Troubleshooting
– Contains a diagnostic guide and error code table.
Chapter 3 Maintenance Procedures
– Contains preventive maintenance procedures and
disassembly, repair and replacement procedures.
Chapter 4 Final Testing
– Contains a list of required test masses, an operational test,
segment display test, performance tests and adjustments.
Chapter 5 Parts
Identification and Diagrams
– Contains exploded views of Ranger scales
identifying all serviceable components.
Appendix A Standard Calibration
– Explains procedures for Temperature and Weight
Calibration, performed prior to using a scale, and after service.
Appendix B Software Service Tool
– Explains how to use the software tool when a new Main
PCB is installed to Configure the Main PCB, enter balance serial number, and install software.
Appendix C Downloading analyzer firmware
– Explains how to download and install the
software.
