Hach-Lange LICO 690 Basic User Manual – страница 3

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Deutsch 41

Power connections

Table 1 Interfaces

Interfaces Description

WARNING

This USB port can be used to connect a printer, a USB memory

USB (Type A)

stick or a keyboard.

Electrical and fire hazards.

Only use the supplied benchtop power supply LZV844.

This USB port is intended only for the connection between the

USB (Type B)

instrument and a PC (when the relevant software is installed).

1. Connect the power cable to the benchtop power supply.

The Ethernet port is intended for data transfer to a PC without

2. Plug the benchtop power supply cable into the back of the

installed software or in a local network . Only use a shielded

Ethernet

instrument (Figure 1).

cable (e.g. STP, FTP, S/FTP) with a maximum length of 20 m for

the Ethernet port.

3. Insert the power cable plug into a mains socket (100–240 V~/47–

63 Hz).

4. Turn on the power switch next to the screen to activate the power

Cuvette compartments and cuvette adapters

supply (Figure 1).

Cuvette compartments and adapter

Note: If you do not intend to use the instrument for a long period,

disconnect it from the power supply.

Open the cuvette compartments by sliding the cuvette compartment

cover to the left.

Note: Make sure the socket you are using is easily accessible.

The cover lowers to the side next to the cuvette compartments.

Interfaces

Note: If there are long intervals between uses, close the cuvette

compartment cover to protect the optics of the instrument from dust and

The instrument has three USB ports and one Ethernet port as standard.

impurities.

They are located on the front and rear of the instrument (Figure 1).

The instrument has two cuvette compartments (Figure 2). Only one cell

The USB type A ports are used for communications with a printer, USB

type at a time can be used for a reading.

memory stick or keyboard. A USB memory stick can be used to update

the instrument software.

Cell compartment (1) for:

The USB type B port is used for communications with a PC. The

• 11 mm round cuvettes

optional Hach Lange Online Data software must be installed on the PC

Note: Insert cuvette adapter Z into the cuvette compartment (2).

for this use.

A USB hub may be used to connect several accessories at a time.

Cell compartment (2) for:

Note: USB cables must not be longer than 3m.

The following cell types can be used in cell compartment (2).

These USB ports permit data to be exported to a printer or PC and also

• Without cuvette adapter Z in the cuvette compartment (2), you can

allow the instrument software to be upgraded. The Ethernet port

insert 50 mm cuvettes.

supports real-time data transfer in local networks, LIMS systems or SC

• With cuvette adapter Z: 10 mm square cuvettes.

controllers. Only use a shielded cable (e.g. STP, FTP, S/FTP) with a

Note: These cuvettes must be inserted with cuvette adapter Z.

maximum length of 20 m for the Ethernet port.

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Note: In the event of severe contamination, you can replace the cuvette

Figure 2 Cuvette compartments and cuvette adapter Z

compartment (2).

Installation of cuvette adapter Z

1. Open the cuvette compartment.

2. Insert cuvette adapter Z into the cuvette compartment (2) so that

the arrow on the cuvette adapter is pointing toward the cuvette

compartment (1) (Figure 2).

Note: The arrow on the cuvette adapter indicates the direction of the light

beam path.

1 Cuvette compartment (1) for round cuvettes

2 Cuvette compartment (2) for square cuvettes, cuvette adapter Z installed

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Start Up

2. Press OK to confirm the language selection. The self-check will

then start automatically.

Change the language setting

NOTICE

The instrument functions in the selected language until the option is

All screen displays in this operating manual correspond to the LICO 690. The

changed.

screen displays of the LICO 620 may differ.

1. Turn the instrument on.

2. During the startup process, touch any point on the screen and

Switch on the instrument, startup process

maintain contact until the option for selecting a language is shown

1. Connect the power cable to the mains outlet.

(approximately 45 seconds).

2. Switch on the instrument by pressing the power switch next to the

3. Select the required language.

screen.

4. Press OK to confirm the language selection. The self-check will

3. The instrument starts automatically with a startup process lasting

then start automatically.

approximately 45 seconds. The screen displays the manufacturer's

logo. At the end of the startup process, a startup melody is heard.

Self-check

Note: Wait approximately 20 seconds before switching on again so as

not to damage the electronics and mechanics of the instrument.

Language selection

Each time the instrument is powered up, a test program begins.

During the course of this program (approx. 25 seconds), system tests,

lamp tests, filter calibration, wavelength calibration and voltage tests can

The software supports multiple languages. The first time the instrument

be carried out. Each test that functions correctly is marked accordingly.

is switched on, the language selection screen will be shown

Note: For error messages during the test program, refer to

automatically after the startup process.

Troubleshooting.

1. Select the required language.

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Power off the instrument

1. Press the power switch next to the screen for approx. 5 seconds.

Standard programs

Overview

Tips for using the touch screen

The whole screen responds to touch. To choose an option, tap with a

fingernail, fingertip, an eraser or a specialised stylus. Do not touch the

screen with sharp objects, such as the tip of a ballpoint pen.

• Do not place anything on top of the screen, to prevent damage or

The Main Menu is displayed when diagnostics are completed.

scratching on the screen.

• Press buttons, words or icons to select them.

Sleep mode

• 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).

Use of the alphanumeric keypad

The instrument can be put into sleep mode.

1. Briefly press the power switch next to the screen.

The "Sleep mode" message is shown. The screen will then switch

off automatically.

2. To switch on, press the power switch next to the screen.

The self-check will start automatically.

After that, the instrument is ready to use.

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This display is used to enter letters, numbers and symbols as needed

Main menu

when programming the instrument. Unavailable options are disabled

(grayed out). The icons on the right and left of the screen are described

in Table 2.

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.

Press Cancel to cancel an entry, or press OK to confirm an entry.

Note: It is also possible to use a USB keyboard (with US keyboard

layout) or a hand-held USB barcode scanner.

Table 2 Alphanumeric keypad

Icon / key Description Function

A variety of modes may be selected from the Main Menu. The following

Toggles the character input mode between upper and

table briefly describes each menu option.

ABC/abc Alphabetic

lower case.

There is a toolbar on the right-hand side of the screen. Press to activate

Punctuation, symbols and numerical sub- and

# % Symbols

the various functions.

superscripts may be entered..

Table 3 Main Menu options

123 Numeric For entering regular numbers..

Option Function

CE Clear Entry Clear the entry.

The COLOR MEASUREMENT MODE is

Left

Deletes the current character and goes back one

used to determine color values such as

Back

Arrow

position.

Hazen, Gardner and Saybolt. The LICO 690

Color measurement

also offers three-dimensional, absolute

Right

colorimetric values, as well as the color

Next Navigates to the next space in an entry.

Arrow

scales of CIE L*a*b*, Hunter Lab or the

European Pharmacopoeia.

The mode for COLOR DIFFERENCE

MEASUREMENT is used to determine a

quantitative color difference between a

Color difference measurement

reference (R) and a sample (P) in the three-

(only LICO 690)

dimensional color space (CIE L*a*b* or

Hunter Lab). In this mode, an additional

reference memory for up to 100 references

is available.

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Table 3 Main Menu options

Table 3 Main Menu options

Option Function

Option Function

Single wavelength readings are:

This menu is used to configure user-specific

Absorbance readings: The light absorbed

and/or process-specific settings: operator ID,

by the sample is measured in absorbance

Instrument Setup

date and time, security settings, saved data,

units.

sound, PC and printer and energy

management.

Transmittance reading (%): Measures the

percent of the original light that passes

Single Wavelength

through the sample and reaches the

Take and prepare samples

detector.

Take a representative sample from the product you wish to measure in

Concentration readings: A concentration

accordance with DIN EN ISO 15528 (or ASTM D3925-02).

factor can be entered to enable the

measured absorbance values to be

If the material shows any signs of turbidity, remove this turbidity by

converted into concentration values.

filtration, centrifuging, heating, ultrasound treatment or other suitable

In the Multi Wavelength mode, absorbance

means.

Photometry

(Abs) or percentage transmittance (%T) is

Heat partly solid samples before measuring in order to dissolve the solid

(only

measured at up to four wavelengths and

LICO 690)

Multi Wavelength

absorbance differences and absorbance

material in the liquid. The preparation must not cause any chemical

relationships are calculated. Simple

changes in the sample.

conversions into concentrations can also be

Make sure that during the measurement there are no bubbles in the

carried out.

sample.

The time scan records the absorbance or %

Time course

transmittance at a wavelength over a defined

For the color difference measurement, three cuvette types are available

time.

that differ in terms of material (glass, PS and PMMA) and path length

(10 mm, 11 mm and 50 mm). Add approx. 2 cm of the sample to the

A wavelength scan shows how the light from

cuvette. The light beam passes through the cuvette approx. 0,5 cm to

a sample is absorbed over a defined

wavelength spectrum. This function can be

1,5 cm above the bottom of the cuvette.

Wavelength Scan

used to determine the wavelength at which

The program calculates the iodine, Hazen, Gardner, Saybolt, Klett and

the maximum absorbance value can be

ASTM D 1500 color values automatically and displays the color values.

measured. The absorbance behavior is

The cuvette type being used is taken into consideration.

displayed graphically during the scan.

The "System Check" menu contains a

number of options, such as instrument

information, optical checks, instrument

System Checks

backup, service times, instrument update,

settings for analytical quality assurance and

lamp history.

Saved data can be retrieved, filtered, sent to

Recall measurement data

a printer, memory stick or PC and deleted.

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A dry thermostat is available for the round disposable glass cuvettes

• Slowly add the liquid to the cuvette in order to prevent the formation

with 11 mm. The dry thermostat heats up the cuvette to any temperature

of air bubbles in the sample.

between ambient temperature and 150 °C (302 °F).

NOTICE

The samples must be clear and free of turbidity. If products in paste or solid form

cannot be measured directly, the product must be melted before being transferred

to the cuvettes/sample cells. Make sure the cuvettes/sample cells do not contain

any air bubbles.

• Always hold the cuvette/sample cell close to the top to make sure

that there are no fingerprints in the measurement zone of the

cuvette/sample cell. Use suitable transfer pipettes to introduce

samples into the cuvettes/sample cells.

• Slowly add samples to the cuvettes/sample cells to make sure air

bubbles do not form on the cuvette/sample cell wall and in the

sample. Air bubbles will cause false readings.

The color measurement mode is used to determine absolute color

values in the Hazen, Gardner, CIE L*a*b* or European Pharmacopoeia

• If air bubbles are entrapped, remove them by heat, vacuum,

color scales.

ultrasonic treatment or other suitable means.

For each cuvette type (11 mm round cuvette and 10 and 50 mm square

• Clean the outside of the cuvettes/sample cells thoroughly before

cuvettes), an independent calibration data record is used.

inserting them in the cell compartment.

It is possible to calibrate the instrument with one, two or three types of

cuvettes/sample cells and to use these different cuvette/sample cell

NOTICE

types in parallel.

Before using disposable cuvettes/sample cells made of PS (Polystyrene) or

PMMA (Polymethyl methacrylate), be sure that the cuvettes/sample cells will not

be destroyed by samples, otherwise the cell compartment can be damaged.

Color measurement

Proper sample preparation is extremely important for accurate color

measurement. To make sure that an exact measurement is taken, refer

to the following sample preparation guidelines:

• Always clean the glass cuvettes/sample cells immediately after use.

• Only use optically preferred samples for measurement. Make sure

the cuvettes/sample cells are clean and show no signs of

opaqueness.

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To use the 10 mm square cuvette and 11 mm round cuvettes, adapter Z

3. The calibration starts automatically once the instrument has

must be inserted into the cuvette compartment (2). For measurements

detected the cuvette.

with 50 mm square cuvettes, you must remove the adapter.

The type of cuvette/sample cell used and the exact progress of

calibration is shown in a separate window.

Take a color measurement

4. After calibration, the cuvette size used is displayed in the top right.

1. Press Color Measurement.

Note: After calibration, you can measure the cuvette with distilled

2. Insert a cuvette/sample cell with distilled water to calibrate.

water again as a sample.

Note: Always carry out the calibration very carefully, as a faulty

The displayed measured values should match the uncolored color

calibration can cause inaccurate results to be obtained.

indices (i.e. Hazen = 0, Gardner = 0.0, CIE L*a*b* = 100.0, 0.0, 0.0,

etc.)

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5. Insert the test cuvette.

Touch-sensitive areas in measurement mode

The measurement starts automatically.

In measurement mode, there are touch-sensitive areas that give you

The result of the color calculation is displayed.

immediate access to various menu options.

Note: The bar on the right next to the result shows the result relative

Figure 3 Touch-sensitive areas in measurement mode

to the measurement range.

6. For the next measurement, remove the cuvette and insert the next

sample cuvette, or press Measure to measure the same sample

again.

1 Open Select Color Scale, and select the scale for the display.

2 Change the displayed color scale to the next color system which is selected

in the Operator ID color scale list for display.

3 OpenSample ID to change or add the sample ID.

4 Change the Upper Limit of the color range.

5 Change the Lower Limit of the color range.

6 Open Comments to enter a comment.

Parameter setup options

Press Options to set up the parameter.

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Table 4 Color measurement options

Options Description

More For further Options

Symbol: Store Data, if Instrument Setup > Data Log Setup > Auto Store: Off is selected.

Save icon

Symbol: Recall Data, if Instrument Setup > Data Log Setup > Auto Store: On is selected.

Send Data icon To send data to a printer, computer or USB memory stick (USB A) or network.

Color Scale Select the color scale

VIEW GRAPH shows the spectral graph of the transmittance or absorbance graph.

View Graph

Note: View Graph is activated after the first measured value.

View Table

View Values

VIEW TABLE displays the spectral transmittance values T% from 380 nm to 720 nm.

VIEW VALUESdisplays the result of the last color calculation.

UNITS: Select absorbance or transmittance.

Scale & Units

SCALE: In the automatic Scale mode, the y-axis is automatically adjusted so that the total scan is displayed.

The manual Scale mode allows sections of the scan to be displayed.

European Pharmacopoeia

Ph.Eur.: Auto

Select AUTO or the REQUIRED SCALE

Define 3 different color scale combinations with up to 3 different color scales for the result display.

Selection 1: Klett Color No. + Yellowness Index

Color Scale Selection

Selection 2: Klett Color No. + ADMI Color No. + Yellowness Index

Selection 3: Yellowness Index + individual transmittance

Illuminant: Select C, A or D65

Illuminant/Observer: C/2°

Observer: 2° or 10°

Color Scales for Operator ID Individual selection of the color scales for the operator ID.

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