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Showa Denko Shodex RI-101 - User Manual

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Shodex RI-101
Refractive Index Detector
Service and Maintenance Manual
High Sensitive Refractive Index Detector
for High Performance Liquid Chromatography
Publication No. ______________

Table of Contents

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Summary

Section 1. Introduction

1-1. Principle of refractive index detection

Explains the fundamental working principle of the refractive index detector.

1-2. Specifications

Details the technical specifications, ranges, and performance characteristics.

Section 2. Unpacking and Installation

2-1. Installation Site Requirements

Guidelines for selecting an appropriate and interference-free location for the detector.

2-2. Power Requirements

Specifies the electrical power needs and safety considerations for operation.

2-3. Unpacking and Inspection

Instructions for carefully removing the detector from packaging and checking for damage.

2-4. Standard Accessories

Lists all the accessories included with the Shodex RI-101 detector.

2-5. Loosing the locking screws

Procedure to loosen transport locking screws to ensure detector stability.

2-6. Making a connection

Instructions for connecting power, tubing, and signal cables to the detector.

2-7. Solvent Recommendations

Guidance on selecting appropriate and safe solvents for mobile phase use.

Section 3. Functional Keys and Displays

3-1. Front View

Identifies all controls, indicators, and ports on the front panel of the unit.

3-2. Functional Keys and Displays

Explains the function and operation of each key and display element.

3-3. Rear View

Identifies all connectors and ports located on the rear of the detector.

3-4. Side View

Shows the side panel features, including the drain port.

3-5. HOME Screen (Indicators and On-Screen Buttons)

Details the main operating screen, including status indicators and soft keys.

3-6. PARAMETERS Screen (Start Up Sequence)

Configuration settings for the detector's start-up sequence.

3-7. PARAMETERS Screen (Operating Parameters)

Configuration settings for various operational parameters of the detector.

3-8. Error Messages

Lists and explains the various error messages and their potential causes.

Section 4. Getting Started

4-1. Just in Case!

A pre-operation checklist to ensure readiness and prevent issues.

4-2. Start Up

Step-by-step procedures for starting the Shodex RI-101 detector.

Section 5. Maintenance

5-1. Cell Cleaning

Detailed instructions for cleaning the detector's flow cells to maintain performance.

5-2. Validation (Primarily for Customer Use)

Procedures for validating the detector's accuracy and reliability.

5-3. Maintenance Screen (Service Use Only)

Accessing and using the maintenance screen for service personnel.

5-4. Span Adjustment Screen (Service Use Only)

Guide for adjusting the detector's span calibration by service personnel.

5-5. Span Validation (Primarily for Customer Use)

Procedure for customers to validate the detector's span setting.

Section 6. Shutdown Procedure

6-1. Corrosive Solvents

Precautions and procedures when using or leaving corrosive solvents in the detector.

6-2. No Flow Shutdown Versus Reduced Flow Shutdown

Different methods for safely shutting down the detector.

6-3. Long-Term Storage

Instructions for proper storage of the detector when not in use for extended periods.

Section 7. Troubleshooting

7-1. Introduction

Overview of common sources of malfunctions in the Shodex RI-101.

7-2. Make sure how the detector itself is working.

Steps to verify the detector's standalone functionality before system troubleshooting.

7-3. To isolate the cause of problem

Strategies for pinpointing the source of a problem within the HPLC system.

7-4. Troubleshooting (Q and A)

A question-and-answer format detailing common issues, their causes, and solutions.

7-5. Troubleshooting (Diagnosis Flow Chart)

Visual flowcharts to guide users through diagnosing specific problems.

7-6. Test Points on PC Boards

Identifies test points on circuit boards and their expected voltage readings.

Section 8. Repair Services

8-1. Optical Block

Procedures related to the disassembly and maintenance of the optical block.

8-2. Replacement

General guidelines and specific procedures for replacing internal components.

Appendix 1. Shodex RI-101 Components and Subassemblies

Part Number Listing

A comprehensive list of Shodex RI-101 components and their corresponding part numbers.

Appendix 2. Miscibility Chart of Solvents

Solvent Miscibility Information

A chart indicating the miscibility of various solvents used in HPLC.

Showa Denko Shodex RI-101 Specifications

General IconGeneral
TypeRefractive Index Detector
Light SourceTungsten lamp
Operating Temperature5 to 35 °C
Measurement Range1.00 to 1.75 RIU
Power Supply50/60 Hz
Drift±5×10^-7 RIU/hour