Hach-Lange DR2800 eco User Manual
DOC022.52.00720
DR 2800
USER MANUAL
08/2013, Edition 6A
© HACH LANGE, 2007–2009, 2013. All rights reserved. Printed in Germany.
2
Table of Contents
Section 1 Specifications ........................................................................................................................................ 7
Section 2 General Information .............................................................................................................................. 9
2.1 Safety information .............................................................................................................................................. 9
2.1.1 Use of hazard information ......................................................................................................................... 9
2.1.2 Precautionary labels ................................................................................................................................. 9
2.1.3 Class 1 LASER ....................................................................................................................................... 10
2.1.4 Chemical and Biological Safety .............................................................................................................. 10
2.2 Overview of product ......................................................................................................................................... 10
Section 3 Installation ........................................................................................................................................... 11
3.1 Unpack the instrument ..................................................................................................................................... 11
3.2 Operating environment .................................................................................................................................... 11
3.3 Power connections ........................................................................................................................................... 12
3.4 Connection ....................................................................................................................................................... 13
3.5 Cell compartments, Cell adapters, Light Shield and Protective Cover ............................................................. 14
3.5.1 Cell compartments and adapters ............................................................................................................ 14
3.5.2 Installation of the cuvette/sample cell adapters ...................................................................................... 15
3.5.3 Use of the light shield for measurements ................................................................................................ 17
3.5.4 Protective Cover ..................................................................................................................................... 19
3.6 Mobile use of the DR 2800 for field analysis .................................................................................................... 20
3.6.1 Position the Protective Cover .................................................................................................................. 21
3.7 Beam path ........................................................................................................................................................ 22
Section 4 Start Up ................................................................................................................................................ 23
4.1 Power the instrument on and off ...................................................................................................................... 23
4.2 Language selection .......................................................................................................................................... 23
4.3 Self-Check ....................................................................................................................................................... 23
Section 5 Standard Operations ........................................................................................................................... 25
5.1 Overview .......................................................................................................................................................... 25
5.1.1 Tips for the use of the touch screen ........................................................................................................ 25
5.1.2 Use of the alphanumeric keypad ............................................................................................................ 25
5.1.3 Main Menu .............................................................................................................................................. 26
5.2 Instrument Setup mode .................................................................................................................................... 27
5.2.1 Operator ID ............................................................................................................................................. 27
5.2.2 Sample ID ............................................................................................................................................... 28
5.2.3 Date and time .......................................................................................................................................... 29
5.2.4 Display and sound preferences .............................................................................................................. 29
5.2.5 Power Management ................................................................................................................................ 29
5.2.6 PC and printer ......................................................................................................................................... 31
5.2.6.1 Printer setup ............................................................................................................................... 31
5.2.6.2 Print data .................................................................................................................................... 33
5.2.6.3 HACH Data Trans ....................................................................................................................... 33
5.2.7 Password ................................................................................................................................................ 34
5.2.7.1 Password deactivation ................................................................................................................ 35
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Table of Contents
5.3 Store, recall, send and delete data .................................................................................................................. 37
5.3.1 The data log ............................................................................................................................................ 37
5.3.1.1 Auto/manual data storage ........................................................................................................... 37
5.3.1.2 Recall stored data from the data log ........................................................................................... 37
5.3.1.3 Send data from the data log ....................................................................................................... 38
5.3.1.4 Delete stored data from the data log .......................................................................................... 39
5.3.2 Time Course ........................................................................................................................................... 40
5.3.2.1 Data Storage from Time Course ................................................................................................. 40
5.3.2.2 Recall Stored Data from Time Course ........................................................................................ 40
5.3.2.3 Send Data from Time Course ..................................................................................................... 41
5.3.2.4 Delete Stored Data from Time Course ....................................................................................... 42
5.4 Stored Programs .............................................................................................................................................. 43
5.4.1 Select a saved test/method; enter user-specific basic data .................................................................... 43
5.4.2 Stored program options .......................................................................................................................... 43
5.4.3 Use of program timers ............................................................................................................................ 45
5.4.4 Set the dilution factor .............................................................................................................................. 46
5.4.5 Run a standard adjust ............................................................................................................................. 46
5.4.6 Set the chemical form ............................................................................................................................. 47
5.4.6.1 Change of the default setting of the chemical form .................................................................... 48
5.4.7 Run a reagent blank ................................................................................................................................ 48
5.4.8 Analysis of samples ................................................................................................................................ 49
5.4.9 Update/edit tests ..................................................................................................................................... 50
5.4.9.1 Manual update of test data ......................................................................................................... 50
5.4.9.2 Program a new test ..................................................................................................................... 51
5.4.10 Add stored programs to the favorite programs list ................................................................................ 51
5.5 Barcode Programs ........................................................................................................................................... 52
5.5.1 Complete a barcode 13 mm test/vial ...................................................................................................... 52
5.5.2 Select the measuring range .................................................................................................................... 53
5.5.3 Select the chemical evaluation form ....................................................................................................... 53
5.5.3.1 Change of the default setting of the chemical form .................................................................... 54
5.5.4 Basic test-specific and sample-specific data settings ............................................................................. 54
5.5.5 Sample blank .......................................................................................................................................... 55
5.5.6 Update/edit barcode tests ....................................................................................................................... 56
5.5.6.1 Manual update of a barcode test ................................................................................................ 56
5.5.6.2 Update an existing barcode test ................................................................................................. 59
5.5.6.3 Program a new test ..................................................................................................................... 60
5.5.7 Upgrade of the instrument software ........................................................................................................ 60
5.5.8 Program an own barcode-readable application with LCW 906 ............................................................... 61
5.5.8.1 Evaluation of barcode-readable application with LCW 906 ........................................................ 61
5.5.8.2 Edit/delete of barcode-readable application ............................................................................... 62
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Table of Contents
Section 6 Advanced Operations ......................................................................................................................... 65
6.1 User Programs ................................................................................................................................................. 65
6.1.1 Program a user method .......................................................................................................................... 65
6.1.1.1 Single wavelength settings ......................................................................................................... 67
6.1.1.2 Multi wavelength settings ............................................................................................................ 68
6.1.1.3 Calibration settings for single and multi wavelength mode ......................................................... 70
6.1.1.4 Store a user program .................................................................................................................. 74
6.1.1.5 Additional user-defined parameters and functions ..................................................................... 74
6.1.2 Free programming program type ............................................................................................................ 76
6.1.2.1 Measurement process ................................................................................................................ 76
6.1.2.2 Enter a new element of a measuring sequence ......................................................................... 77
6.1.2.3 Enter the calibration formula (evaluation formula) ...................................................................... 79
6.1.2.4 Enter variables ............................................................................................................................ 82
6.1.2.5 Save a free programming user program ..................................................................................... 82
6.1.3 Select a user program ............................................................................................................................. 83
6.1.4 Add, edit and delete user programs from the favorites list ...................................................................... 83
6.1.4.1 Add to Favorites .......................................................................................................................... 84
6.1.4.2 Edit .............................................................................................................................................. 84
6.1.4.3 Delete ......................................................................................................................................... 84
6.2 Favorite Programs ........................................................................................................................................... 85
6.2.1 Recall a favorite program ........................................................................................................................ 85
6.2.2 Delete a favorite program ....................................................................................................................... 85
6.3 Standard Addition – monitoring/checking results ............................................................................................. 86
6.3.1 Complete a standard addition ................................................................................................................. 87
6.4 Single Wavelength (absorbance, concentration and transmittance measurements) ....................................... 91
6.4.1 Set up single wavelength mode .............................................................................................................. 91
6.4.2 Take single wavelength measurements .................................................................................................. 93
6.5 Multi-Wavelength mode – measurements at more than one wavelength ........................................................ 94
6.5.1 Set the reading mode at different wavelengths ....................................................................................... 94
6.5.2 Complete a measurement in the multi wavelength mode ....................................................................... 97
6.6 Time course of absorbance/transmittance ....................................................................................................... 98
6.6.1 Time course setup parameters ............................................................................................................... 98
6.6.2 Time course scan reading ....................................................................................................................... 99
6.6.3 Analysis of time course data ................................................................................................................. 100
6.6.3.1 Navigation of a time scan or a time scan analysis .................................................................... 101
6.7 System checks ............................................................................................................................................... 101
6.7.1 Instrument information .......................................................................................................................... 102
6.7.2 Upgrade of the instrument software ...................................................................................................... 102
6.7.3 Optical checks ....................................................................................................................................... 103
6.7.3.1 Wavelength check .................................................................................................................... 103
6.7.3.2 Stray light check ....................................................................................................................... 104
6.7.3.3 Absorbance check .................................................................................................................... 105
6.7.3.4 Verification kit ........................................................................................................................... 106
6.7.4 Output checks ....................................................................................................................................... 108
6.7.5 Lamp history ......................................................................................................................................... 108
6.7.6 Factory service ...................................................................................................................................... 108
6.7.7 Service time .......................................................................................................................................... 109
6.7.8 Instrument Backup ................................................................................................................................ 110
Section 7 Maintenance ...................................................................................................................................... 113
7.1 Cleaning requirements ................................................................................................................................... 113
7.1.1 Spectrophotometer ............................................................................................................................... 113
7.1.2 Display .................................................................................................................................................. 113
7.1.3 Cuvettes/sample cells ........................................................................................................................... 113
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Table of Contents
7.2 Insert or change of the battery ....................................................................................................................... 114
7.2.1 Information about using the battery ...................................................................................................... 115
7.2.1.1 Recycle the lithium battery ........................................................................................................ 115
7.2.1.2 Optimal operation of the battery ............................................................................................... 116
7.2.1.3 Lifespan of the battery .............................................................................................................. 116
7.2.1.4 Load the battery/Operating time ............................................................................................... 117
7.3 Lamp replacement ......................................................................................................................................... 118
Section 8 Troubleshooting ................................................................................................................................ 121
Section 9 Replacement Parts ............................................................................................................................ 123
Section 10 Contact Information ........................................................................................................................ 125
Section 11 Warranty, liability and complaints ................................................................................................. 127
Index .................................................................................................................................................................... 129
6
Section 1 Specifications
Specifications are subject to change without notice.
Performance Specifications
Operating Mode Transmittance (%), Absorbance and Concentration
Source Lamp Gas-filled Tungsten (visible)
Wavelength Range 340–900 nm
Wavelength Accuracy ± 1.5 nm
Wavelength Reproducibility < 0.1 nm
Wavelength Resolution 1 nm
Wavelength Calibration Automatic
Wavelength Selection Automatic, based on method selection
Spectral Bandwidth 5 nm
Photometric measuring range ± 3.0 Abs in Wavelength Range 340–900 nm
Photometric Accuracy
Photometric Linearity
Stray Light
Data storage 500 measured values (result, date, time, sample ID, user ID)
5 mAbs at 0.0–0.5 Abs
1% at 0.50–2.0 Abs
< 0.5%–2 Abs
< = 1% at > 2 Abs
with neutral glass at 546 nm
< 0.2% T @ 340 nm with KV450/3
< 0.1% T @ 340 nm with NaNO
2
User programs 50
Physical and Environmental Specifications
Width 220 mm (8.6 in)
Height 135 mm (5.3 in)
Depth 330 mm (12.9 in)
Weight
Operating Requirements 10–40 °C (50–104 °F), max. 80% relative humidity (non-condensing)
Storage Requirements -40–60 °C (-40–140 °F) max. 80% relative humidity (non-condensing)
Additional technical data
Mains connection
Interfaces
Enclosure Rating
Safety class Safety class II
4.06 kg (8.95 Ibs) without battery
4.38 kg (9.66 Ibs) with battery
15 VDC/ 30VA
Plug-in power supply unit: (100–240 V/50–60 Hz)
Use only shielded cable with max. length of 3 m.
1 x USB type A
1 x USB type B
IP 41 with closed lid
IP 42 with Protective Cover in place
7
Specifications
8
Section 2 General Information
LASER CLASS 1
2.1 Safety information
Please read this entire manual before unpacking, setting up or
operating this equipment. Pay attention to all danger, warning and
caution statements. Failure to do so could result in serious injury to
the operator or damage to the equipment.
Make sure that the protection provided by this equipment is not
impaired, do not use or install this equipment in any manner other
than that specified in this manual.
2.1.1 Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that may result in
minor or moderate injury.
2.1.2 Precautionary labels
This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.
Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after
12 August of 2005. In conformity with European local and national regulations (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 symbol indicates that the instrument contains a Class 1 LASER device.
Data: 0.3 mW; λ = 650 nm
Important Note: Indicates a situation which, if not avoided, may
cause damage to the instrument. Information that requires special
emphasis.
Note: Information that supplements points in the main text.
Read all labels and tags attached to the instrument. Personal injury
or damage to the instrument could occur if not observed. A symbol,
if noted on the instrument, will be included with a danger or caution
statement in the manual.
2.1.3 Class 1 laser product
PERSONAL INJURY HASARD.
Never remove covers from the instrument. This is a
9
General Information
2.1.4 Chemical and Biological Safety
laser-based instrument and the user risks injury if exposed to
the laser.
Personal injury hazard. Never remove covers from the instrument.
This is a laser-based instrument and the user risks injury if exposed
to the laser.
This instrument is a CLASS 1 LASER PRODUCT, CDRH
Accession No. 0510555. Invisible laser radiation is present when
opened. Avoid direct exposure to the beam. Service of the internal
components must be done by factory-authorized personnel only.
The instrument has been evaluated and tested in accordance with
EN 61010-1, "Safety Requirements for Electrical Equipment for
Measurement, Control and Laboratory Use" and EN 60825-1,
"Safety of Laser Products".
Data: 0.3 mW; wavelength = 650 nm
DANGER
Potential Chemical/ Biological Exposure Hazards. Handling
chemical samples, standards and reagents can be da nger ous.
Users of this product are advised to familiarize themselves
with safety procedures and the correct use of chemicals, and
to carefully read all relevant Material Safety Data Sheets.
2.2 Overview of product
Normal operation of this instrument may involve the use of
hazardous chemicals or biologically harmful samples.
• The user must observe all cautionary information printed on the
original solution containers and safety data sheet prior to their
use.
• All waste solutions must be disposed in accordance with local
and national law.
• The type of protective equipment must be selected according to
the concentration and amount of the dangerous substance at
the specific workplace.
The DR 2800 spectrophotometer is a VIS spectrophotometer with a
wavelength range of 340 to 900 nm. The instrument comes with a
complete set of application programs and multi-language support.
The DR 2800 spectrophotometer contains the following application
modes: Stored Programs (pre-installed tests), Barcode Programs,
User Programs, Favorite Programs, Single Wavelength Mode,
Multi-Wavelength Mode and Time Course Mode.
The DR 2800 spectrophotometer provides digital readouts in direct
concentration units, absorbance, or percent transmittance.
10
When a user-generated or programmed method is selected, the
on-screen menus and prompts direct the user through the test.
This menu system also can be used to generate reports, statistical
evaluations of generated calibration curves, and to report
instrument diagnostic checks.
Section 3 Installation
3.1 Unpack the instrument
WARNING
Electrical and Fire Hazards. Use only the provided power
supply. Only qualified personn el should conduct the tasks
described in this section of the manual.
The DR 2800 Spectrophotometer comes packaged with the
following items:
• DR 2800 spectrophotometer
• Plug-in power supply, including 4 adapter for EU, GB, USA,
AUS/China
• Dust cover
• 3 different cuvette/cell adapters (A, B and C)
• Light Shield belongs to standard configuration of DR 2800
• Protective Cover
• Quick start guide
Further information, detailed user manuals and documentation are
available on the website of the manufacturer.
3.2 Operating environment
Note: If any of these items are missing or damaged, contact the
manufacturer or a sales representative immediatly.
The following conditions are necessary to ensure correct
instrument operation and accurate results:
• Place the instrument firmly on an even surface. Do not push
any objects under the instrument.
• Maintain an ambient temperature of 10 to 40 ºC (50 to 104 ºF)
for proper instrument operation.
• The relative humidity should be less than 80%; moisture should
not condense on the instrument.
• Leave at least a 15 cm (6 in.) clearance at the top and on all
sides for air circulation to avoid overheating of electrical parts.
• Do not operate or store the instrument in extremely dusty,
damp or wet locations.
• Keep the surface of the instrument, the cell compartment and
all accessories clean and dry at all times. Splashes or spills on
and in the instrument should be cleaned up immediately (see
section 7.1 on page 113).
Important Note: Protect the instrument from temperature
extremes, including heaters, direct sunlight and other heat sources.
11
Installation
3.3 Power connections
3.4 Connection
Only the provided external power supply LZV798 has to be used.
Install the correct adapter plug on the supplied external power
supply (Figure 1) by sliding the adapter on until it "clicks" into
position. Correctly mounted, both housing of power supply and plug
are in line. Plug the external power supply cord into the connector
on the back panel of the instrument, then plug the supply into a
power outlet (100–240 V~ / 50–60 Hz). Press the power switch on
the back of the instrument to initialize power.
The DR 2800 has two USB interfaces as a standard feature,
located on the back of the instrument (Figure 1).
The USB Type A interface is used for communications with a
printer, USB memory stick, barcode scanner, or keyboard. A USB
memory stick is used to update instrument software.
The USB Type B interface is used for communications with a PC.
The optional Hach Data Trans software (see section 5.2.6.3 on
page 33) must be installed on the PC for this use.
A USB hub may be used to connect several accessories at a time.
Note: USB cables must not be longer than 3 meters (10 feet).
These USB interfaces enable data and graphics to be output to a
Printer and a PC and upgrade instrument software (see
section 6.7.2 on page 102).
12
Installation
Figure 1 Interfaces
1 On/Off switch 4 Cover
2 USB type B 5 USB type A
3 Plug in power supply 6
13
Installation
3.5 Cell compartments, Cell adapters, Light Shield and Protective Cover
3.5.1 Cell compartments and adapters
The DR 2800 has two cell compartments (Figure 2). Only one
cuvette/sample cell type at a time can be used for a measurement.
Cell compartment #1
• 13-mm round cuvettes/vials
Note: Cell compartment #1 contains a barcode reader for
cuvettes/vials.
Cell compartment #2
Cell compartment #2 uses adapters to accommodate different
cuvette/sample cell types.
• 1-inch square or 50-mm rectangular cuvettes/cells (can be
inserted directly into the cell compartment without using an
adapter).
• Adapter A: 10-mm square cuvettes/cells
• Adapter B: Pour-Thru cells (refer to the instruction sheet
supplied with the Pour-Thru cell) and multi-path cuvettes/cells
Note: Pour-Thru Cell must be used with Adapter B, not Adapter C.
• Adapter C: One-inch round cuvettes/cells and AccuVac®
Ampules
Note: One-inch round cuvettes/cells and AccuVac Ampules must be
used with Adapter C, not Adapter B.
Figure 2 Cell compartments
1 Cell compartment #1 2 Cell compartment #2
14
Installation
Figure 3 Cuvette/Sample cell adapters
1 10 mm square cuvette/sample cell adapter (A) 3 1 inch round cuvette/sample cell adapter (C)
2 1 inch Pour-Thru adapter (B)
3.5.2 Installation of the cuvette/sample cell adapters
1. Open the cell compartment.
2. Select the correct adapter for the cuvette/sample cell type.
3. Insert the adapter so the arrow on top of the adapter points to
the left (Figure 4 on page 16) and the orientation tab fits the
groove in the compartment opening. The cuvette/sample cell
type imprint should be legible on the adapter (Figure 3).
Note: The arrow on top of the adapter indicates the direction of the
light beam path.
15
Installation
16
Figure 4 Installation of a cuvette/sample cell adapter
3.5.3 Use of the light shield for measurements
The light shield (Figure 5 on page 17) prevents light interference
when using 13 mm barcode tests and must be in place before
measurements can be taken in cell compartment #1. The light
shield is required only when using 13 mm barcode tests.
The DR 2800 is shipped with the light shield installed. Remove the
light shield before using cell compartment #2. The light shield can
be stored in the Protective Cover (Figure 7 on page 19)
Installation
Figure 5 Light Shield
17
Installation
Installation of the light shield
1. Open the cell compartment.
2. Insert the light shield so the arrow on the light shield points to
the left and the orientation tab fits the groove in the
compartment opening (Figure 6).
1 Light Shield
18
Figure 6 Light Shield in place
3.5.4 Protective Cover
Installation
Figure 7 Protective Cover
1 Protective Cover 3 Protective Cover with inserted cuvette/sample cell
2 Protective Cover (inside view)
The inside of the Protective Cover is intended to house
the cuvette/sample cell adapters. The recesses for
holding the cuvette/sample cell adapters are marked with
the corresponding letters.
adapter A in position A.
19
Installation
3.6 Mobile use of the DR 2800 for field analysis
If the DR 2800 spectrophotometer is used to carry out field
analyzes, it may be necessary to take a number of measures to
compensate for the fluctuating ambient light conditions.
You should take the measures described below if the following
warning is displayed after you take a measurement:
Error: Too much ambient light! Move device into shade or
close the lid!
General measure:
Shield the instrument from the sun by standing so that your shadow
falls on it, and carry out the measurement again. If the warning
appears again, take the following measures.
Measures:
Measurements in a 10 mL round cuvette/cell, a rectangular
cuvette/cell or AccuVac Ampules
Close the lid of the cuvette compartment and carry out the
measurement.
Measurements in a 13 mm round cuvette/vial or a 25 mL
square cuvette/cell
To obtain consistent measurement conditions in all weather
conditions, place the Protective Cover on the open cuvette/cell
compartment (see Figure 8 Position the Protective Cover on page
21) and carry out the measurement.
Important Note: When you carry out measurement in 25 mL
square cuvettes/cells, take care that there is no adapter in the
Protective Cover.
The enclosure rating of the photometer increases from IP41 to IP42
when the Protective Cover is in place.
20
3.6.1 Position the Protective Cover
Installation
Figure 8 Position the Protective Cover
1. After you have inserted the zero solution cuvette or the sample
cuvette, position the Protective Cover over the open cuvette
compartment. The lettering "Protective Cover" must be
readable from the display side of the instrument.
2. Press the Protective Cover lightly into the correct position until
the cuvette compartment is completely sealed and the
Protective Cover cannot slip off.
3. Carry out the measurement.
Note: The Protective Cover can simultaneously be used to house the
different cuvette adapters. The cuvette adapter recesses in the Protective
Cover are marked with the corresponding letters and arrows of the adapter.
The arrows in the Protective Cover and on the adapters indicate the
direction of insertion.
21
Installation
3.7 Beam path
Figure 9 shows the beam path of the DR 2800:
Figure 9 Beam path
1 Tungsten lamp 8 Splitter mirror
2 Entrance slit 9 Reference-element
3 Heat-protection glass 10 Cell compartment #2
4 Grating 11 Lens
5 Exit slit 12 Measurement element
6 Lens 13 Cell compartment #1
7 Filter wheel 14 LED
22
Section 4 Start Up
4.1 Power the instrument on and off
1. Plug in to the power supply (laboratory analysis) or insert the
battery (field analysis).
2. The push-button switch on the back of the instrument switches
the instrument on (press for about 1 second) and off (press for
about 3 to 5 seconds). An acoustic signal confirms that the
instrument has been switched off.
Note: Do not turn the instrument off and on in rapid succession. Always
wait about 20 seconds before turning the instrument on again, otherwise
the electronic and mechanical systems will be damaged.
4.2 Language selection
The spectrophotometer software includes several language
options. The first time the instrument is turned on, the language
selection screen will appear.
4.3 Self-Check
1. Select the desired language.
2. Press OK to confirm the language selection. The self check will
start automatically.
Change the language setting
The instrument functions in the selected language until the option is
changed.
1. While turning the instrument on, touch the screen at any point
until the list for selecting a language appears
(about 30 seconds).
2. Select the required language.
3. Press OK to confirm. The test program subsequently starts
automatically.
Each time the instrument is powered up, a series of diagnostic tests
are performed automatically to ensure operation of major system
components.
This procedure, which takes approximately two minutes, checks the
system, lamp, filter adjustment, wavelength calibration and voltage.
Each test which functions correctly is confirmed with a check mark.
The Main Menu is displayed when power up diagnostics are
completed.
23
Start Up
If the instrument detects any deviation relative to the last
calibration, a system check has to be carried out.
1. Remove the cuvette from the cell compartment and close the
lid.
2. Then press Start.
The system check is carried out (duration approx. 6 minutes).
Note: Further error messages during self check, see Section 8 on page
121.
24
Section 5 Standard Operations
5.1 Overview
5.1.1 Tips for the use of the touch screen
The entire screen is touch-activated. To make a selection, press the
screen with a fingernail, fingertip, pencil eraser or a stylus. Do not
press the screen with a sharp object, such as the tip of a ball
point pen.
• Do not place anything on top of the screen, to prevent damage
or scratching on the screen.
• Press keys, words or icons to select them.
• Use scroll bars to move up and down long lists very quickly.
Press and hold the scroll bar, then move up or down to move
through the list.
• Highlight an item from a list by pressing it once. When the item
has been successfully selected, it will be displayed as reversed
text (light text on a dark background).
5.1.2 Use of the alphanumeric keypad
This display is used to enter letters, numbers and symbols as
needed when programming the instrument. Unavailable options are
disabled (grayed out). The icons on the right and left of the screen
are described in Table 1.
The central keypad changes to reflect the chosen entry mode.
Press a key repeatedly until the desired character appears on the
screen. A space can be entered by using the underscore on the
YZ_ key.
Note: A USB keyboard (with US keyboard layout) or a USB Barcode
handset scanner can be used for input (see Section 9 on page 123).
Table 1 Alphanumeric keypad
Icon / key Description Function
ABC/abc Alphabetic
# % Symbols Punctuation, symbols and numerical sub- and superscripts may be entered.
123 Numeric For entering regular numbers.
CE Clear Entry Clear the entry.
Left Arrow Backspace
Right Arrow Advance
When entering alphabetic characters (ex. user-entered units), this key allows to
toggle between upper and lower case letters.
Moves back one position. This deletes the character previously entered in the new
position.
Moves to the next space in an entry when two adjacent characters occur on the
same key.
25
Standard Operations
5.1.3 Main Menu
Option Function
A variety of modes may be selected from the ”Main Menu“. The
following table briefly describes each menu option.
Table 2 ”Main Menu“ Options DR 2800
Stored Programs /
Barcode Programs
(HACH LANGE
Programs)
User Programs
Favorite Programs List of methods/tests created by the user to suit his own requirements.
Single Wavelength
Multi Wavelength
Time Course The time scan records the absorbance or % transmittance at a wavelength over a defined time.
System Checks
Stored programs are pre-programmed methods that make use of HACH reagents and LANGE
cuvette tests and pipette tests.
The DR 2800 Procedures Manual contains illustrated, step-by-step procedures for analyzes
using HACH programs. The working procedures for LANGE tests are included in the test packs.
User programs make "made to measure analysis" possible:
- Users can program methods they have developed themselves
- Existing HACH and LANGE methods can be stored as user programs. The LANGE tests can
then be modified to suit the user's requirements.
Single wavelength measurements are:
Absorbance measurements: The light absorbed by the sample is measured in absorbance
units.
Transmittance measurements (%): The percentage of the light that passes through the sample
and reaches the detector is measured.
Concentration measurements: A concentration factor can be entered to enable the measured
absorbance values to be converted into concentration values.
In the multi-wavelength mode, absorbance (Abs) or percentage transmittance (%T) is measured
at up to four wavelengths, and absorbance differences and absorbance relationships are
calculated. Simple conversions into concentrations can also be carried out.
The system checks menu offers a number of options, including optical checks, output checks,
lamp history, instrument update, service time and instrument backup.
Recall Data Stored data can be called up, filtered, transmitted and deleted.
Instrument Setup
In this mode, user-specific or method-specific settings can be entered: Operator-ID, Sample-ID,
Date & Time, Display & Sound, Power Management, PC & Printer and Password.
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5.2 Instrument Setup mode
5.2.1 Operator ID
Standard Operations
1. Select Instrument Setup in the ”Main Menu“.
A selection of functions appears in order to configure the functions
of the instrument.
Use this option to enter up to 30 sets of operator initials (up to
5 characters each) into the instrument. This feature helps record
which operator measured each sample.
1. Press Operator ID in the Instrument Setup.
2. Press New to enter a new Operator ID.
3. Use the alphanumeric keypad to enter a new Operator ID.
4. Press OK to confirm.
5. The display shows the chosen Operator ID.
6. Press OK. The instrument will return to the Instrument Setup
screen and show the selected operator identifier.
7. The chosen Operator ID is activated.
Note: Press Delete to remove an Operator ID from the list.
Note: Alternatively , enter or change an Operator ID in measurement mode.
In the results screen, press Options>More>Instrument Setup or if an
Operator ID is already assigned, select the "Operator ID symbol
immediately in the results screen.
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Standard Operations
5.2.2 Sample ID
Use this option to enter up to 100 Sample Identification tags (up to
13 characters each) into the instrument. Sample IDs can be used to
specify the sample location or other sample specific information.
1. Press Sample ID in the Instrument Setup.
2. Press New to enter a new Sample ID.
3. Use the alphanumeric keypad to enter a new Sample ID.
Note: If a USB Barcode handset scanner ( see Section 9 on page 123)
is connected, Sample IDs can also be scanned. Sample IDs can also
be entered with a USB keyboard.
4. Press OK to confirm.
5. To number the Sample IDs sequentially (e.g. Inflow (01 etc.)),
select Add Number.
• Use the arrow keys to specify the first number of the
sequence.
• Use the key between the arrow keys to enter the first
number of the sequence using the alphanumeric keypad.
6. Press OK to return to "Instrument Setup".
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7. The Sample ID is activated. Each Sample ID is automatically
numbered in ascending order after a measurement. The
number is shown in parentheses behind the Sample ID.
Note: To remove a Sample ID, highlight the ID and press Delete.
Note: A Sample ID can be entered or changed in measurement mode. In
the results screen, press Options>More>Instrument Setup. If a Sample
ID is already assigned, select the Sample ID symbol in the results screen.
5.2.3 Date and time
1. Press Date & Time in the Instrument Setup.
2. The date and time are subdivided over a number of fields.
3. Press OK to confirm. The instrument will return to
5.2.4 Display and sound preferences
1. Press Display & Sound in the Instrument Setup.
Standard Operations
Press the appropriate field and use the arrow keys to change
the value.
Instrument Setup.
5.2.5 Power Management
The following options will be displayed:
• Display Contrast—Adjusts the display brightness to suit
lighting conditions.
• Screen touch—Activates//Deactivates a short beep each time
the screen is pressed (Default:off).
• Reading done—Activates/Deactivates a sound when a
reading is complete (Default: short beep every time a reading is
complete).
•Timer—Adjusts the length of the timer sound. Select Short or
Long. Long beeps are recommended for noisy environments.
2. Press OK to confirm. The instrument will return to
Instrument Setup.
The DR 2800 can run on mains or battery power.
Note: The battery is not part of the standard scope of delivery.
1. Select Power Management in the ”Instrument Setup“ menu.
The battery symbol indicates the charge status of the battery
in %.
Note: The timer settings in the Power Management menu are only
active when the instrument is runn i n g on ba ttery power.
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Standard Operations
2. Select one of the options under Standby mode to set the
length of the idle period that can elapse before the instrument
switches to the Standby mode when running on battery power.
Note: In standby mode, the backlighting of the screen is switched off.
Touching the display causes the lighting to switch on again.
3. Select one of the options under Auto off to set the length of the
idle period that can elapse before the instrument automatically
switches off when running on battery power.
Note: After the instrument switches itself off automatically, you have to
press the push-button switch on the back of the instrument to start it
again.
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