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Advanced Instruments Advanced Cryoscope 4250 User Manual

Advanced Instruments Advanced Cryoscope 4250
121 pages
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4255 Rev11 032317
The Advanced
®
Cryoscope
Model 4250
User’s Guide

Table of Contents

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Advanced Instruments Advanced Cryoscope 4250 Specifications

General IconGeneral
Resolution0.001 °C
Accuracy±0.002°C
Repeatability±0.001°C
CalibrationAutomatic
Data OutputRS232
Cooling Time5 minutes
DisplayLCD
Power Requirements50/60Hz
Operating Temperature15°C to 32°C

Summary

Safe Use

Symbol Conventions

Explains symbols used for safety warnings and instructions.

General Cautions

Provides essential safety guidelines and electrical precautions for instrument operation.

FCC Requirements

Details compliance information related to FCC regulations for the device.

Supplies, Parts & Accessories

Calibrators & Standards

Foreword: Theory and Technique

Principles of Milk Cryoscopy

Explains the scientific basis of cryoscopy applied to milk analysis.

Freezing Point Thermodynamics

Discusses the thermodynamic principles behind the instrument's measurement process.

Milk Freezing Point Scales and Analysis

Covers Hortvet/Celsius scales and interpretation of deviation data.

Key Definitions

Provides definitions of essential terms used in cryoscopy.

Installation & Setup

Initial Instrument Setup Procedures

Guides on location, unpacking, fluid installation, paper loading, and powering up.

System Initialization and Calibration Verification

Covers priming, diagnostics, settings, and checking factory calibration.

Instrument Operation

Component Overview and Preparation

Identifies components and covers sample prep, handling, and general operation.

Testing Procedures and Quality Control

Guides on using standards, selecting modes, performing tests, and QC.

Error Handling and Settings Management

Addresses common errors, troubleshooting, and changing operating settings.

Standards & Quality Control

Repeatability and Accuracy Principles

Explains the concepts of repeatability and accuracy in measurement quality.

Standards, Controls, and QC Implementation

Covers the use of standards, controls, and implementing quality control measures.

Calibration

Calibration Procedure and Scale Selection

Details the automatic calibration process and choosing between Celsius/Hortvet scales.

Calibration Notes and Best Practices

Provides important considerations and tips for successful calibration.

Troubleshooting & Service

Safety, Maintenance, and Service Access

Covers safety precautions, routine maintenance, and how to obtain service.

Diagnostic Tests and Issue Resolution

Explains troubleshooting checks, internal diagnostics, and resolving common issues.

Component Checks, Alignment, and Adjustment

Details fuse replacement, probe checks, alignment, and amplitude adjustments.

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