Hach DR/820 User manual
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
1
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
2.2 Turning the Instrument On.................................................................................................17
2.3 Setting the Date and Time..................................................................................................17
2.3.1 Entering the Correct Date .........................................................................................17
2.3.2 Entering the Correct Time ........................................................................................18
2.4 Sample Cell Insertion.........................................................................................................19
2.5 Sample Cell Adapter Installation .......................................................................................19
2.5.1 Using the 16-mm COD/Test ‘N Tube Vial Adapter.................................................19
2.6 Using the Instrument Cap as A Light Shield......................................................................20
SECTION 3 INSTRUMENT OPERATION .......................................................................21
3.1 Menus.................................................................................................................................21
3.1.1 Setup Menu...............................................................................................................21
3.1.2 Recall Menu..............................................................................................................22
3.2 Performing an Analysis......................................................................................................22
3.2.1 Colorimeter Setup for Sample Analysis ...................................................................23
3.2.2 Sample Preparation...................................................................................................24
3.2.3 Zeroing the Colorimeter ...........................................................................................24
3.2.4 Measuring the Prepared Sample ...............................................................................24
3.2.5 Alternate Chemical Forms........................................................................................25
3.2.6 Using the Timer ........................................................................................................25
3.2.6.1 Using the Timer in Manual Mode................................................................25
3.2.6.2 Stopping the Timer ......................................................................................26
3.3 Reagent Blank Correction ..................................................................................................26
3.4 Adjusting the Standard Curve ............................................................................................27
3.5 Using a Programmed Method ............................................................................................29
3.6 Quality Assurance ..............................................................................................................30
2
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 ......................................................................................... 37
SECTION 5 DATA RECALL AND STORAGE ................................................................. 39
5.1 Recalling Data.................................................................................................................... 39
5.2 Erasing All Stored Data .....................................................................................................40
SECTION 6 PRINTING AND DATA TRANSFER............................................................ 43
6.1 Data Transfer Adapter Basics............................................................................................ 43
6.1.1 Attaching the Data Transfer Adapter ....................................................................... 43
6.2 RS232 Connections............................................................................................................ 44
6.2.1 Setup and Use of the Printer..................................................................................... 45
6.2.2 Connecting to a Personal Computer......................................................................... 46
6.3 Sending Data to a Printer or Computer.............................................................................. 47
6.3.1 Sending Currently Displayed Data........................................................................... 47
6.3.2 Sending Recalled Data ............................................................................................. 48
6.3.3 Sending All Stored Data........................................................................................... 48
SECTION 7 MAINTENANCE............................................................................................. 51
7.1 Cleaning the Colorimeter................................................................................................... 51
7.1.1 Cleaning the Data Transfer Adapter......................................................................... 51
7.1.2 Sample Cells............................................................................................................. 51
7.2 Replacement Instructions................................................................................................... 51
7.2.1 Battery Replacement ................................................................................................ 51
SECTION 8 TROUBLESHOOTING .................................................................................. 53
8.1 Introduction........................................................................................................................ 53
8.1.1 Error Codes .............................................................................................................. 53
8.1.2 Beeper/Error Icon..................................................................................................... 54
8.1.3 Concentration Out of Range..................................................................................... 54
8.1.4 Low Battery.............................................................................................................. 54
GENERAL INFORMATION
REPLACEMENT PARTS AND ACCESSORIES ................................................................. 57
How To Order.......................................................................................................................... 59
Repair Service.......................................................................................................................... 60
Warranty .................................................................................................................................. 61
CERTIFICATION ...................................................................................................................63
3
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.
Use of Hazard Information
If multiple hazards exist, the signal word corresponding to the
greatest hazard shall be used.
DANGER
Indicates either a potentially or an imminently hazardous situation which, if
not avoided, could result in either death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in minor or
moderate injury.
NOTE
Information that requires special emphasis.
Precautionary Labels
Please pay particular attention to labels and tags attached to the
instrument. Personal injury or damage to the instrument could
occur if not observed.
The DR/800 Series Colorimeters are Class 1 LED products. A
Class 1 LED product has insufficient energy to be considered an
eye hazard.
Section 2.1 Battery Installation
SECTION 4 CREATING USER-ENTERED PROGRAMS
Electrical equipment marked with this symbol may not be disposed of in European public dis-
posal systems after 12 August of 2005. In conformity with European local and national regula-
tions (EU Directive 2002/96/EC), European electrical equipment users must now return old or
end-of life equipment to the Producer for disposal at no charge to the user.
Note: For return for recycling, please contact the equipment producer or supplier for
instructions on how to return end-of-life equipment, producer-supplied electrical accessories,
and all auxiliary items for proper disposal.
This is the safety alert symbol. Obey all safety messages that follow this symbol to avoid
potential injury. If on the instrument, refer to the instruction manual for operation or safety
information.
4
SPECIFICATIONS
Specifications subject to change without notice.
Wavelength Range(s):
•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
Source Lamp: Light Emitting Diode (LED)
Detector: Silicon Photodiode
Data Readout: 4-digit LCD, 1.5-cm Character Height
Readout Modes: % Transmittance, Absorbance, Concentration
External Outputs: IR (Infrared to RS-232 Serial using the Data
Transfer Adapter)
Battery Power: (4) AA alkaline cells
Instrument Dimensions: 23.6 x 8.7 x 4.7 cm (9.3 x 3.4 x 1.9
inches)
Instrument Weight: 470 g (1 lb.)
Photometric Range: 0-2 A
Stray Light: <1.0% at 400 nm
Battery Life: 6 months (typical)
Temperature Range:
Operating Range: 0 to 50 °C (32 to 122 °F)
Storage Range: -40 to 60 °C (- 40 to 140 °F)
Humidity: 90% at 50 °C
Environmental: Designed to meet IP67 Standard; dustproof and
waterproof
5
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 des Produits (FDSP) et se familiariser avec toutes les procédures de sécurité
avant de manipuler tous les produits chimiques.
PELIGRO
La manipulación de muestras químicas, estándares y reactivos puede ser peligrosa. Revise las fichas
de seguridad de materiales y familiarícese con los procedimientos de seguridad antes de manipular
productos químicos.
GEFAHR
Das Arbeiten mit chemischen Proben, Standards und Reagenzien ist mit Gefahren verbunden.
Es wird dem Benutzer dieser Produkte empfohlen, sich vor der Arbeit mit sicheren Verfahrensweisen
und dem richtigen Gebrauch der Chemikalien vertraut zu machen und alle entsprechenden
Materialsicherheitsdatenblätter aufmerksam zu lesen.
PERIGO
A manipulação de amostras, padrões e reagentes químicos pode ser perigosa. Reveja a folha dos
dados de segurança do material e familiarize-se com todos os procedimentos de segurança antes
de manipular quaisquer produtos químicos.
OPERATION
6
7
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. Instrument
features include:
•Test results are displayed in concentration, absorbance,
or percent transmittance.
•Automatic wavelength selection and ranging in the
preprogrammed parameters.
•Data storage and recall for datalogging in the field
or laboratory.
•Conversion of results to alternate forms for many parameters
(i.e., PO4, P2O5, P).
•Reagent Blank Correction and Standard Adjust features may
be used to compensate for lot-to-lot variations in reagents.
•Icon prompts displayed during testing.
•A built-in timer to monitor specific reaction times called for
in the test procedures. Appropriate times are programmed
into the calibration data for specific tests. The timer also can
be used manually by the operator independent of the
stored methods.
•IR output for RS232 interface capability allows an external
printer or computer to interface with the colorimeter.
•Entry of user-entered methods or new Hach methods.
•Error signals for procedural or instrument troubleshooting.
The colorimeter operates on battery power. The instrument holds
four AA-size alkaline dry cells (batteries supplied) that power the
instrument for at least six (6) months.
8
SECTION 1, continued
Figure 1 DR/800 Series Colorimeter Standard Package*
1.2 Unpacking the Instrument
Remove the instrument and accessories from the shipping
container and inspect each item for any damage that may have
occurred during shipping. 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.
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2
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