Overview

This document provides detailed technical information and user guidance for the Shimadzu UniBloc Analytical Balances series (models AUW-D, AUW, AUX, AUY). It covers specifications, calibration procedures, features, application support, and data communication capabilities, emphasizing compliance with GLP/GMP/ISO9000 standards.

1. Specifications and Performance

• Weighing Performance: High precision with fast response and excellent stability.
• Environmental Adjustment: Automatic compensation for ambient temperature changes to maintain accuracy.
• Reliability: Stable response ensured by Shimadzu’s UniBloc technology and robust mechanical design.
• Permissible Sensitivity Error: Sensitivity error is kept below maximum permissible limits through automatic calibration.

2. Calibration Procedures

• Fully-Automatic Calibration (PSC): The balance detects ambient temperature variations and performs automatic calibration to maintain accuracy.
• Clock-CAL: User can preset up to three automatic calibrations per day at specific times (e.g., before work, lunch break, after work).
• Touch-Key Calibration: Manual calibration can be initiated anytime by pressing keys.
• External Calibration Weights: Supported for span calibration across all models.

3. Application Support and Features

• Specific Gravity Measurement: Optional SMK-401 kit enables density and specific gravity measurements with pre-installed software.
• Pouring Mode: Optimized for fast response during filling or dosing small sample amounts.
• Formulation Mode: Facilitates multiple measurements of minute samples and total mass calculation.
• Piece Counting and Unit Conversion: Supports counting, percentage weighing, and various mass units including carats.
• Interval Timer: Enables automatic data output at user-defined intervals (1 second to 99 minutes 59 seconds), compatible with WindowsDirect.

4. User-Friendly Design

• Weighing Chamber: Spacious chamber accommodates tall flasks and allows temperature equalization before weighing.
• Easy Level Adjustment: Front-level gauge and large screws simplify installation leveling.
• Metal Housing: Durable aluminum die-cast housing protects internal mechanisms and facilitates cleaning.
• Backlit Display: Available on AUW models for use in low-light environments.
• Comfortable Key Operation: Embossed keys with tactile feedback and optional audible confirmation.
• Analog Bar Graph Display: Visual indication of load relative to capacity.
• Protective Cover: Shields keys and display from dirt and damage.

5. Data Communication and Software Integration

• GLP/GMP/ISO9000 Compliance: Calibration reports and measurement data can be printed with date, time, sample ID, and counting numbers using optional EP-90 printer.
• WindowsDirect Functionality: Weighing results can be directly input into any Windows application (e.g., Excel, Word) by pressing the PRINT key on the balance, requiring only a cable connection without additional software.

6. Additional Features

• Below-Weigh Hook: Standard hook for weighing items that cannot fit inside the chamber.
• Automatic Span Calibration: Ensures consistent accuracy during operation.

Critical Information and Best Practices

• Ensure the balance is placed on a stable, level surface using the easy level adjustment features.
• Use automatic calibration features regularly to maintain measurement accuracy, especially in environments with temperature fluctuations.
• Utilize the spacious weighing chamber to allow samples to reach temperature equilibrium before weighing for precise results.
• Leverage WindowsDirect for efficient data handling and integration into laboratory workflows without the need for additional software.
• Refer to the calibration reports for traceability and compliance with quality standards.

Summary

The Shimadzu UniBloc Analytical Balances offer advanced weighing technology with automatic environmental compensation, versatile application support, and user-friendly design. Their compliance with international quality standards and seamless data communication capabilities make them suitable for precise laboratory measurements and quality control processes.