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TA Instruments DHR Series User Manual

TA Instruments DHR Series
35 pages
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Revision G Issued November 2013
Getting Started Guide
DHR Series and AR Series
Small Angle Light-Scattering (SALS)
Accessory
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TA Instruments DHR Series Specifications

General IconGeneral
BrandTA Instruments
ModelDHR Series
CategoryMeasuring Instruments
LanguageEnglish

Summary

Introduction

Notes, Cautions, and Warnings

Regulatory Compliance

Outlines regulatory compliance standards and safety requirements for the instrument.

Safety Standards

Lists specific safety standards for electrical and laboratory equipment by region.

Electromagnetic Compatibility Standards

Details electromagnetic compatibility standards relevant to the instrument's operation.

Safety

Required Equipment

Details essential personal protective equipment and required accessories for safe operation.

Electrical Safety

Warns about high voltages and specifies qualified personnel for maintenance.

Radiation Danger

Alerts users to the Class 2 laser product and the danger of staring into the beam.

Instrument Symbols

Explains the meaning of safety symbols displayed on the instrument.

Chapter 1: Introducing the SALS Accessory

Overview

Provides a general introduction to the Small Angle Light Scattering (SALS) Accessory.

Scattering Theory

Explains the principles of light scattering and how it relates to particle properties.

The Direction of Incident Light

Describes the direction of the incident light relative to the sample's shear direction.

Product Description

Details the components and specifications of the SALS accessory hardware.

Adjusting the Plane of Focus

Explains how to adjust the planoconvex lens to set the focal point within the sample.

Polarization

Describes the plane polarized light and the use of an analyzer for polarization studies.

Intensity Adjustment

Explains how to adjust the intensity of the incident laser light using filters.

Intensity Corrections

Details the necessary corrections for intensity measurements due to angle and distance.

Specifications

Lists the technical specifications of the SALS accessory.

Chapter 2: Installing the SALS Accessory

Mounting the Upper and Lower Fixtures

Step-by-step instructions for mounting the upper and lower fixtures of the accessory.

Attaching the Upper Geometry

Procedure for attaching the rheometer geometry to the instrument spindle.

Connecting the Camera and Installing the Drivers

Instructions for connecting the camera and installing necessary software drivers.

Aligning the System

Detailed steps for aligning the SALS system using a calibration sample.

Chapter 3: Calibrating the SALS Accessory

Preparing the SALS

Guides on preparing the SALS accessory and deciding on calibration levels.

Level 1 Experiments

Describes basic usage for collecting and viewing scattering images.

Level 2 Experiments

Details processing images for clarity, averaging, and background subtraction.

Level 3 Experiments

Outlines requirements for absolute data gathering and numerical analysis.

Calibrating the Scattering Angle

Explains how to determine the relationship between pixel position and scattering angle.

Mie Scattering

Discusses using Mie scattering patterns from calibrated samples for system calibration.

Using the Laven Program

Guides on using the Laven program for Mie scattering calculations.

Preparing and Loading the Calibration Sample

Instructions on preparing and loading the sample for calibration.

Using ImageJ

Step-by-step guide on using ImageJ for processing scattering images.

Calculating the Optics Correction Factor

Details calculating system calibration factors using Excel and data.

Chapter 4: Using the SALS Accessory

Overview

Provides an overview of the procedures for using the SALS accessory after setup.

Loading the Sample

Instructions on how to load samples, including precautions for bubbles.

Setting the Focal Position

Explains how to set the focal position within the sample using lens settings.

Locking Exposure

Guidance on locking camera exposure settings for consistent image capture.

Selecting the Image Format

Information on choosing the appropriate image format for saving results.

Exporting Images

Instructions on how to export captured images for further analysis.

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