Related Manuals for Hach DR/820
Summary of Contents for Hach DR/820
- Page 1 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...
-
Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY PRECAUTIONS ......................3 SPECIFICATIONS ........................4 OPERATION SECTION 1 GENERAL DESCRIPTION ................7 1.1 Instrument Description......................7 1.2 Unpacking the Instrument ....................8 1.2.1 Standard Accessories ....................9 1.2.2 Optional Accessories ....................9 1.3 Description of the Keypad....................9 1.4 Display Screen in Function and Numeric Modes...............12 1.5 Icon and Display Screen.....................12 SECTION 2 INSTRUMENT SETUP ...................15 2.1 Battery Installation ......................15... - Page 4 TABLE OF CONTENTS SECTION 4 CREATING USER-ENTERED PROGRAMS..........31 4.1 User-Entered Programs...................... 32 4.2 Calibration Curves ......................32 4.3 User-entered Program Information for Bleaching Chemistries......... 32 4.4 Creating a New User-entered Program................33 4.5 Reviewing and Editing User-Entered Programs..............36 4.6 Erasing User-entered Programs ..................
-
Page 5: Safety Precautions
SAFETY PRECAUTIONS Before attempting to unpack, set up or operate this instrument, please read this entire manual. Pay particular attention to all warnings, cautions and notes. Failure to do so could result in serious injury to the operator or damage to the equipment. To ensure the protection provided by this equipment is not impaired, this equipment MUST NOT be installed or used in any manner other than that which is specified in this manual. -
Page 6: Specifications
• Model DR/890: 420, 520, 560, 610 nm • Model DR/850: 520, 610 nm • Model DR/820: 520 nm Wavelength Accuracy: ±1 nm Wavelength Selection: Automatic Photometric Linearity: ±0.002 A (0-1 A) Photometric Reproducibility: ±0.005 A (0-1 A) Photometric Accuracy: ±0.005 A @1.0 ABS Nominal... -
Page 7: Operation
OPERATION DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité... -
Page 9: Section 1 General Description
SECTION 1 GENERAL DESCRIPTION 1.1 Instrument Description The Hach DR/800 Series Colorimeter shown in Figure 1 is a microprocessor-controlled, LED-sourced filter photometer suitable for colorimetric testing in the laboratory or the field. The instrument is precalibrated for common colorimetric measurements and includes convenient calibration capability for user-entered and future Hach methods. -
Page 10: Unpacking The Instrument
Verify that all items listed on the packing slip are included. If any items are missing or damaged, please contact Hach Customer Service, Loveland, Colorado for instructions. * Carrying Case may be ordered separately. -
Page 11: Standard Accessories
SECTION 1, continued Hach’s toll-free number for customers within the United States is 800-227-4224. For customers outside the United States, contact the Hach office or distributor serving you. 1.2.1 Standard Accessories • Sample Cells — (2) round, 1-inch pathlength, glass, with 10-mL, 20-mL, and 25-mL marks;... - Page 12 SECTION 1, continued Figure 2 Keypad Table 1 Keys and Descriptions DESCRIPTION Allows the user to select a program. Also used as a numeric key function when the “#” icon is illuminated at the base of the display screen. Accesses the SETUP menu (the SETUP icon illuminates in the upper left-hand corner of the display screen).
- Page 13 If using a Hach-stored program, the TIMER key automatically sets the appropriate reaction time. If not in a Hach-stored program, the TIMER key allows the user to set a timer. When the “ ” icon is illuminated at the base of the display screen, CE clears the most recent level of action (deletes the whole entry, not just the last number).
-
Page 14: Display Screen In Function And Numeric Modes
SECTION 1, continued 1.4 Display Screen in Function and Numeric Modes The main display operates in two modes: function mode and numeric mode. The user does not select the mode, changeover is automatic depending on the options selected, where the user is in an analysis, and what information the instrument needs from the user. - Page 15 Shows the active program number, (either a user-entered (101-110) or Hach-stored program (1-100). The program number is displayed immediately below the PRGM icon.
-
Page 17: Section 2 Instrument Setup
Figure 4 provides an exploded view of the battery installation. When replacing discharged batteries, always replace the complete set of four. Hach recommends using alkaline batteries in this instrument. Do not use rechargeable Nickel Cadmium (NiCad) batteries. The battery compartment is accessible from the underside of the instrument. - Page 18 SECTION 2, continued PERIGRO O uso de baterias de níquel-cádmio em condição de falha cria a possibilidade de incêndio. DANGER L'utilisation de batteries nickel-cadmium dans des conditions inappropriées crée un risque d'incendie. GEFAHR Unter einer Störungsbedingung stellt die Verwendung von Nickel- Kadmium-Batterien eine Feuergefahr dar.
-
Page 19: Turning The Instrument On
SECTION 2, continued 2.2 Turning the Instrument On Once batteries are installed, turn the instrument on using the key (located on the top row, far-right column of the EXIT/I/O instrument keypad). Press the key once to power-on the instrument. The display will show the software version number, then will default to the last used program number. -
Page 20: Entering The Correct Time
SECTION 2, continued Next, the instrument prompts for the month and day 6. Enter the correct month and day using the numeric keypad. The month must be entered first, followed by the day. If an incorrect number is entered, press the key and re-enter the information. -
Page 21: Sample Cell Insertion
SECTION 2, continued 2.4 Sample Cell Insertion Wipe the sample cell with a lint-free cloth or tissue and insert the cell into the sample cell compartment with the diamond-shaped marker toward the keypad. Figure 5 Placing Samples in the Sample Cell Compartment 2.5 Sample Cell Adapter Installation When installing an adapter into the sample cell compartment, insert the adapter into the cell compartment and rotate until it... -
Page 22: Using The Instrument Cap As A Light Shield
SECTION 2, continued Figure 6 Installing the COD/TNT Adapter 2.6 Using the Instrument Cap as A Light Shield The colorimeter cap is removable (by sliding it away from the keypad) to expose the sample cell compartment. The instrument cap also functions as a light shield. Samples may be analyzed without the light shield in place but using the light shield provides a good seal against stray light and contributes to more accurate results. -
Page 23: Section 3 Instrument Operation
SECTION 3 INSTRUMENT OPERATION 3.1 Menus The instrument has two important menus which allow access to different options. The menus are: • Setup Menu • Recall Menu Once the user has selected the desired menu, the arrow icons illuminate on the main display screen. The arrows indicate that additional options are available in this menu. -
Page 24: Recall Menu
Hach program; the BLANK Absorbance, and %T. Refer to Section SECTION 6 for and STD options are detailed printing information and to Figure 10 for an example always available for user- entered programs. -
Page 25: Colorimeter Setup For Sample Analysis
The display returns to the prompt for the program number. Re-enter the correct program number. Only select chemistries are available on the DR/820 and DR/850. See APPENDIX A AVAILABLE PARAMETERS AND RANGES on page 65. -
Page 26: Sample Preparation
SECTION 3, continued 3.2.2 Sample Preparation For colorimetric tests, sample preparation is next. The zero solution (or blank) and sample are usually prepared at this time. Generally, sample preparation consists of adding the contents of a premeasured reagent pillow to a small volume of sample. Follow the instructions in the procedure specific to your analysis. -
Page 27: Alternate Chemical Forms
. If alternate forms are not available, the instrument returns to its original form and reading. 3.2.6 Using the Timer Many Hach test methods use one or more timers which are pre- programmed into the DR/800 Series Colorimeters. When the procedure instructs you to, press the... -
Page 28: Stopping The Timer
SECTION 3, continued will begin. The display will show the remaining time. At the end of the elapsed time, the instrument sounds five beeps. 3.2.6.2 Stopping the Timer Stop the timer at any point in the countdown by pressing the key. -
Page 29: Adjusting The Standard Curve
Do not attempt to use the Reagent Blank Adjust feature if the procedure uses a reagent blank for zeroing. 3.4 Adjusting the Standard Curve The DR/890 Colorimeter has over 90 Hach Programs permanently installed in memory (other models have fewer programs). A program usually includes a preprogrammed calibration curve. - Page 30 Adjust the calibration curve using the reading obtained with a Hach Standard Solution or carefully prepared standard made from a concentrated Hach Standard Solution. It is important to adjust the curve in the correct concentration range. For most purposes, Hach recommends adjusting the curve using a standard concentration that is 70 to 85% of the maximum concentration range of the test.
-
Page 31: Using A Programmed Method
Hach programmed and user-entered program options are available on this instrument. The Procedures Manual supplied at the time of purchase contains all currently available Hach- programmed methods. Up to ten user-programmed methods may be entered into the instrument. See Creating a New User-entered Program on page 33 for instructions for this function. -
Page 32: Quality Assurance
% transmittance. 3.6 Quality Assurance Verify the performance of your instrument in seconds using Hach DR/Check™ ABS Secondary Standards (Cat. No. 27639-00). These gel standards provide a measure of instrument absorbance for use anywhere, anytime, as often as laboratory quality assurance procedures suggest. -
Page 33: Section 4 Creating User-Entered Programs
SECTION 4 CREATING USER-ENTERED PROGRAMS DANGER PELIGRO This instrument is not Este instrumento no está destinado para uso con muestras inflamables intended for use with o que contengan hidrocarburos. flammable samples or PERIGO those containing Este instrumento não é feito com o fim de ser empregado com hydrocarbons. -
Page 34: User-Entered Programs
4.1 User-Entered Programs The instrument allows storage of up to ten user-entered programs (101–110) and up to 113 Hach programs. A minimum of two data points are required for the instrument to recognize and accept a user-entered program. •... -
Page 35: Creating A New User-Entered Program
SECTION 4, continued lighter color at increasing concentrations. The zero concentration standard is usually produced by combining deionized water with the reagents. Commonly this solution is used to zero the instrument as in Step step 14 of Section 4.4 Creating a New User- entered Program. - Page 36 SECTION 4, continued • If the wavelength is correct as displayed, skip to Step step 8. • Some instrument models can use different wavelengths. If a different wavelength is preferred, proceed as follows: a. Press . A flashing question mark will be displayed ENTER in the lower-right corner.
- Page 37 SECTION 4, continued 10. Press . Four horizontal lines (denoting numeric entry) ENTER will be displayed. 11. Enter the standard’s concentration, using the numeric entry keys (the # icon will be illuminated on the display). Note: Press the CE key to correct errors. 12.
-
Page 38: Reviewing And Editing User-Entered Programs
SECTION 4, continued 20. Press the key once. will be displayed. STORE ? EXIT 21. Press the key to store the new method in the ENTER instrument’s memory. 4.5 Reviewing and Editing User-Entered Programs All method information previously stored by the operator can be Note: When a user- entered program is edited reviewed and changed to add, delete, or modify data points. -
Page 39: Erasing User-Entered Programs
SECTION 4, continued 4.6 Erasing User-entered Programs User-entered programs are automatically deleted when another Note: When a user- entered program is erased, user-entered program is entered and stored in the previously all stored data associated entered method’s storage number (101–110). They also may be with that program is erased from the instrument memory as follows: also erased. -
Page 41: Section 5 Data Recall And Storage
SECTION 5 DATA RECALL AND STORAGE To store sample data, press after the sample measurement STORE is displayed. Data must be stored if you wish to recall it later for review, downloading or printing. The following information is stored for each sample: •... -
Page 42: Erasing All Stored Data
SECTION 5, continued example, if the user has stored data into storage numbers 6, 10 and 15, those are the only accessible numbers in the Recall option. Available storage numbers are not shown as a Recall option because no data has been stored for recall purposes. When a number of sample readings have been stored and a specific reading must be recalled, proceed as follows: 1. - Page 43 SECTION 5, continued A flashing question mark icon will appear in the lower-right portion of the screen as an additional step to avoid erasing all data if the choice was made erroneously. 5. Confirm this action by pressing the key or, if this is ENTER not the desired action, press the key.
-
Page 45: Section 6 Printing And Data Transfer
SECTION 6 PRINTING AND DATA TRANSFER 6.1 Data Transfer Adapter Basics The optional Data Transfer Adapter (DTA) utilizes infra-red technology to receive data from the DR/800 Series Colorimeter and then transfer the signal into RS232 format. The DTA then sends the RS232 signal to a printer or personal computer. The sleeve design makes the adapter compact, easy to use, and robust. -
Page 46: Rs232 Connections
SECTION 6, continued 6.2 RS232 Connections The RS232 receptacle on the Data Transfer Adapter connects with a 9-pin Sub-D connector (see Figure 9 RS232 Connection). A suitable RS232 cable is listed under Optional Accessories in REPLACEMENT PARTS AND ACCESSORIES on page 57. The RS232 interface output is an eight-bit data word plus one stop bit and no parity with a baud rate of 1200. -
Page 47: Setup And Use Of The Printer
SECTION 6, continued 6.2.1 Setup and Use of the Printer Follow the manufacturer's instructions when configuring the printer for compatibility with the colorimeter. Pressing manually starts the printing, and pressing the PRINT EXIT key stops the printing (refer to Section 6.3 Sending Data to a Printer or Computer). -
Page 48: Connecting To A Personal Computer
(Cat. No. 49665-00) to collect data from the instrument. HachLink is a Windows-based application that allows a personal computer to capture data from several Hach instruments, including the DR/800 Series Colorimeters. The captured data can be stored in a text file as a spread-sheet compatible format or as free-format text. -
Page 49: Sending Data To A Printer Or Computer
SECTION 6, continued • Mouse or other pointing device • 9-pin serial port (or 25-pin serial port with 9-pin adapter) • Windows 95, 98, 2000, or NT 4.0 operating system To transfer data, the communication parameters (baud rate, data bits and parity) of the instrument and the computer must match. Once the communication link is established, press to send PRINT... -
Page 50: Sending Recalled Data
SECTION 6, continued 6.3.2 Sending Recalled Data To transfer recalled data: 1. Remove the instrument cap and slide the DTA onto the instrument until snug. 2. Make sure the DTA is properly connected to the computer or printer. (See Section 6.2 RS232 Connections.) 3. - Page 51 SECTION 6, continued • time • program number • sample number • concentration • units • chemical form • Overrange errors (limit) • absorbance • Figure 10 Printed Data Format...
-
Page 53: Section 7 Maintenance
SECTION 7 MAINTENANCE 7.1 Cleaning the Colorimeter Use a damp cloth to wipe the outside of the colorimeter enclosure. Wipe up spills promptly. Use cotton swabs to clean and dry the sample compartment if any spillage occurs. Keep the colorimeter and sample cells clean at all times. Use a lens tissue or a soft, lint-free cloth (that will not leave an oil film) to wipe out the sample cell. -
Page 55: Section 8 Troubleshooting
Colorimeters in the field is limited to responding to the error messages presented in the display. Other problems must be handled by a Hach technician at a service center. Refer to REPAIR SERVICE. Do not attempt to service anything other than the battery;... -
Page 56: Beeper/Error Icon
Make sure the test procedure is followed correctly, dilute the sample (for over range samples) and rerun the test. Each Hach test has an upper concentration value that defines the program range. Measurements beyond that range are unreliable. -
Page 57: General Information
GENERAL INFORMATION At Hach Company, customer service is an important part of every product we make. With that in mind, we have compiled the following information for your convenience. -
Page 59: Replacement Parts And Accessories
Instrument & Procedure Manual & Binder .......each ...4847077 Manual Set, DR/850, includes Instrument & Procedure Manual & Binder .......each ...4845077 Manual Set, DR/820, includes Instrument & Procedure Manual & Binder .......each ...4844077 Sample Cell, 25 x 95 mm 10-20-25 mL............pkg/6 ...2401906 Sample Cell, 1 cm/10 mL, pk/2..............pkg/2 ...4864302... -
Page 61: How To Order
Call 1-800-227-4224 or E-mail techhelp@hach.com. International Customers Hach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send E-mail to intl@hach. com or contact: In Canada, Latin America, Africa, Asia, Pacific Rim: Telephone: (970) 669-3050;... -
Page 62: Repair Service
Repair Service Authorization must be obtained from Hach Company before sending any items for repair. Please contact the HACH Service Center serving your location. In the United States: Hach Company 100 Dayton Avenue Ames, Iowa 50010 (800) 227-4224 (U.S.A. only) -
Page 63: Warranty
In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price, excluding original shipping and handling charges. -
Page 65: Certification
CERTIFICATION Hach Company certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory. The DR/800 Series Colorimeter has been tested and is certified as indicated to the following instrumentation standards:... - Page 66 CERTIFICATION, continued FCC PART 15, Class “A” Limits: Supporting test records by Intellistor O.A.T.S., certified compliance by Hach Company. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.