Sartorius Master Pro LP820 User Manual

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DIN EN ISO 9001
Sartorius AG, Weighing Technology
Sartorius AG, Weighing Technology
Sartorius Master
pro
Serie
Electronic Precision Balances
Service Manual
for LP / LA Models

Sartorius Master Pro LP820 Specifications

General

Brand	Sartorius
Model	Master Pro LP820
Category	Scales
Language	English

Summary

Operating the Balance

Key Functions

SETUP Program

Password Levels

SETUP Program

INPUT Mode

Service Switches

Access Switch

Activating the BPI Mode / Deactivating the Write Protection

Steps to activate BPI mode for service.

Activating the Service Mode

Calibration/Adjustment in the Service Mode

Lists available adjustment options in service mode.

External Linearization

Manual Input of the Linearization Weights

Procedure to input specific weights for linearization.

Performing External Linearization

Internal Span Adjustment

External Span Adjustment with Manual Input of Weight Values

Entering weights for span adjustment.

External Span Adjustment with Stored Weight

Overwriting the Internal Calibration Weight

reproTEST

Calibration with a User-defined Weight

reproTEST

Servicing the Weighing Cell

Removing the Display and Control Unit from the Weighing Cell

Opening the Weighing Cell (Small Single-Casting Block System, Brass System)

Opening the Weighing Cell (Large Single-Casting Block System)

Accessing the Main PCB

Opening the Display and Control Unit

Replacing the Built-in Calibration Weight

Procedure to replace the internal calibration weight.

Calibration/Adjustment

Calibration/Adjustment Sequence

Prerequisites for Calibration/Adjustment

Preload

Checking the Preload

Procedures to check the preload value.

Adjusting the Preload with a Digital Voltmeter

Method for adjusting preload using a voltmeter.

Adjustment Specifications

Adjusting the Preload

Reproducibility

Checking the Off-center Load

Adjusting the Off-center Load

Masterpro Balances with the Large Single-Casting Block System

Span Accuracy

Linearity

Checking the Linearity on Balances with Less Than 1,000,000 Digits

Checking the Linearity on Balances with More Than 1,000,000 Digits and PolyRange Balances

Repairing the Balance

Repairing the Weighing System

Repairing the Electronics

Replacing the PCB in the Display and Control Unit

Steps to replace the PCB in the display unit.

Replacing the Display and Control Unit, Backlighting Module, Keypad Overlay

Replacing the Balance PCB

Procedure for replacing the main balance PCB.

Masterpro Balances with the Small Single-Casting Block System or Brass System

Masterpro Balances with the Large Single-Casting Block System

Replacing the PCB in large single-casting block systems.

Service Specifications Sheet 1

Service Specifications Sheet 2