Vibra AJH Series User Manual

AJ(H) Series
Service Manual

Vibra AJH Series Specifications

General

Brand	Vibra
Model	AJH Series
Category	Scales
Language	English

Summary

Total View of AJ and AJH Scales

1-1 Total View of AJ Type (220-1200g)

Provides a complete visual representation of the AJ Type scale.

1-2 Total View of AJH Type (220-620g, 2200g, 4200g)

Offers a visual overview of the AJH Type scale models.

Electronic Construction and Wiring

2-1 Block Diagram of Scale Electronics

Illustrates the internal electronic architecture and component connections.

2-2 Whole Wiring Schematic

Details the complete wiring schematic of the scale.

Troubleshooting Scale Issues

3-1 Troubleshooting Procedure

Step-by-step guide for diagnosing and resolving scale issues.

3-2 Troubleshooting Table

A table listing common symptoms, their causes, and remedies.

3-3 Primary Checks

Basic checks to perform before detailed troubleshooting.

3-4 Checks for Electric/Electronic Parts

Procedures for testing electrical and electronic components.

Scale Adjustment and Setting Procedures

4-1 Span Calibration (CAL) for AJ Type

Procedure for calibrating the scale's span for the AJ Type.

4-2 Lock Switch Functionality

Explains the function and use of the lock switch.

4-3 Corner Error Adjustment

Method for adjusting the scale to correct corner errors.

4-4 Adjustment Sequence for Various Cases

Outlines the sequence of adjustments for various operational cases.

4-5 Resetting Address Data (Coefficients)

Procedure to re-set original data when memories are lost or changed.

4-6 Linearity Adjustment Guide

Guide on how to perform linearity adjustments on the scale.

4-7 Calibration of Built-in Weight (REF CAL) - AJH Type

Procedure for calibrating the built-in weight for AJH scales.

Parts Replacement Procedures

5-1 How to Remove the Case

Instructions for removing the scale's outer casing.

5-2 How to Cover the Case

Steps for properly re-attaching the scale casing.

5-3 Sequence of Mechanism Unit Replacement

Overall sequence for replacing the scale's mechanism unit.

5-4 Sequence of Tuning-Fork Sensor Replacement

Steps for replacing the tuning-fork sensor.

5-5 Sequence of the AJDP Circuit Board Replacement

Procedure for replacing the AJDP circuit board.

5-6 How to Remove Calibration Weight Unit

Instructions for removing the internal calibration weight unit.

5-7 How to Install Calibration Weight Unit

Steps for installing the internal calibration weight unit.

Installation of Optional Features

6-1 Installation of Battery Option

Guide for installing the optional battery unit.

Parts Lists for Scale Models

7-1 Parts List for AJ-220~1200 Models

Comprehensive list of parts for AJ-220 to AJ-1200 models.

7-2 Parts List for AJ-2200~12K Models

Comprehensive list of parts for AJ-2200 to AJ-12K models.