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DR/820
Instrument manual
Hach DR/820 Instrument Manual
Portable datalogging colorimeter
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Safety Precautions
Specifications
Operation
Section 1 General Description
Instrument Description
Unpacking the Instrument
Standard Accessories
Optional Accessories
Description of the Keypad
Display Screen in Function and Numeric Modes
Icon and Display Screen
Section 2 Instrument Setup
Battery Installation
Turning the Instrument on
Setting the Date and Time
Entering the Correct Date
Entering the Correct Time
Sample Cell Insertion
Sample Cell Adapter Installation
Using the 16-MM Cod/Test 'N Tube Vial Adapter
Using the Instrument Cap as a Light Shield
Section 3 Instrument Operation
Menus
Setup Menu
Recall Menu
Performing an Analysis
Colorimeter Setup for Sample Analysis
Sample Preparation
Zeroing the Colorimeter
Measuring the Prepared Sample
Alternate Chemical Forms
Using the Timer
Using the Timer in Manual Mode
Stopping the Timer
Reagent Blank Correction
Adjusting the Standard Curve
Using a Programmed Method
Quality Assurance
Section 4 Creating User-Entered Programs
User-Entered Programs
Calibration Curves
User-Entered Program Information for Bleaching Chemistries
Creating a New User-Entered Program
Reviewing and Editing User-Entered Programs
Erasing User-Entered Programs
Section 5 Data Recall and Storage
Recalling Data
Erasing All Stored Data
Section 6 Printing and Data Transfer
Data Transfer Adapter Basics
Attaching the Data Transfer Adapter
RS232 Connections
Setup and Use of the Printer
Connecting to a Personal Computer
Sending Data to a Printer or Computer
Sending Currently Displayed Data
Sending Recalled Data
Sending All Stored Data
Section 7 Maintenance
Cleaning the Colorimeter
Cleaning the Data Transfer Adapter
Sample Cells
Replacement Instructions
Battery Replacement
Section 8 Troubleshooting
Introduction
Error Codes
Beeper/Error Icon
Concentration out of Range
Low Battery
General Information
Replacement Parts and Accessories
How to Order
Repair Service
Warranty
Certification
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Table of Contents
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Performing an Analysis
3
Colorimeter Setup for Sample Analysis
4
Using a Programmed Method
5
User-Entered Programs
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48440-18
DR/820, DR/850, and DR/890
Portable Datalogging Colorimeter
Instrument Manual
© Hach Company, 1997–2009. All rights reserved. Printed in the U.S.A.
jk/te/dk 2/09 2 ed
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This manual is also suitable for:
Dr/850
Dr/890
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