BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
A Instrument Description
A1 General
LCM plus is a universal colorimeter for liquids suitable for manifold industrial applications. It is easy
to handle and has a sturdy design.
But what is really the reason why objective colour measurement of liquids is so important? The
human eye is able to perceive about 100 spectral colours in approximately 100 degrees of
brightness and saturation, which results in about 1 million perceptible shades. Therefore, hues
are difficult to describe by subjective visual comparison.
The specific colour of a product is often regarded as a sign of purity and quality, although that is
not necessarily true. Clients often interpret deviations from the shade of an earlier production as
defective product or supply and reject it preventively. In order to avoid such trouble, objective
colour assessment, a uniform colorimetric system and reliable instrument are required for
production and quality control of transparent coloured liquids.
New Standard EN 1557
EN 1557 (Colorimetric characterization of transparent coloured liquids) now also defines colour
measurement of liquids on the basis of the time-tested colorimetric standards of DIN 5033. The
principle is to measure the X-, Y- and Z-transmissions. The sample is illuminated with a halogen
lamp corresponding to standard illuminant C. On this basis, the LCM plus was developped for
exact and reproducible measurements of transparent yellow-cast liquids.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
A2 Instrument Design
LCM plus measures transmissions of all transparent media. It operates with a halogen lamp
producing standard illuminant C and uses the 2° standard observer as defined by DIN-standard
5033. A reference beam path compensates measuring values modified by driftings of lamps and
temperatures during operation. Therefore, LCM plus provides an excellent long-term constancy
and reproducible measuring results. The universal cuvette compartment suitable for 50 x 10mm
square cuvettes and 11mm round glass cuvettes permits an optimum adaptation of LCM plus to the
measurement tasks.
In just one measurement, LCM plus evaluates by to the latest ISO-standards giving e.g. Iodine,
Hazen or Gardner values. The basical instrument includes one optional colour number with the
possibility of adding-on a random combination of colour numbers later or at once. These colour
systems are available: Iodine number, Hazen number, Gardner number, Saybolt number and ASTM
D 1500- number. To add-on more colour systems later, a program-module-box (bit-box) is
supplied. The description of this bit-box is given in chapter D6.
Fig. 9: Measuring principle of LCM plus
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
A3 Instrument Set-Up
Unwrap the instrument carefully and check it for missing parts (delivery note). Please keep the
packing box to pack the instrument safely in case it has to be transported again later.
LCM plus should be placed on a level desk surface. The instrument comes with a power supply
unit and adapter for the socket (100 – 240 Volt / 47 – 63 Hz) and is turned on by either pressing
the OK-key or the grey menu key.
Do not turn on and off too fast. Wait for 20 seconds before turning on again not to damage the
electronic or mechanic system of the instrument.
The blue lamp protection cover on the upper left part of the instrument serves to carry the heat
off the lamp and must not be covered.
As LCM plus is a sophisticated optical instrument, avoid the following at any rate:
• Do not use the instrument in direct sunlight.
• Do not allow water, inflammable or metallic objects to enter the instrument.
• Do not put filled cuvettes or heavy objects on the housing.
• Do not use the instrument in excessively moist, dusty or vibrating surroundings.
• Do not open the instrument. There are no parts in the housing for the user to check.
• If you have any questions of problems, please contact with our offices in Düsseldorf or
one of our service stations (see page Fehler! Textmarke nicht definiert.).
A4 Reference Standards
In general, an absolutely transparent medium similar to the sample serves as a calibration or
reference standard for coloriemtry on the transmission principle. To measure the colour of liquids,
distilled water is filled into a cuvette similar to the measuring cuvette and used as a reference
standards. In some exceptional cases where the density of the substance to be emasured differs
from that of the distilled water, calibration is made against a colourless measuring medium.
Calibration assigns the reference standard a transmission of 100% (or Iodine number = 0, Hazen
= 0, etc.). As this assignment never changes, 100 no calibration value needs to be set for LCM.
Instead, just fill a cuvette with the reference standard and put it into the cuvette compartment to
perform calibration.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
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B Operation
B1 Control And Functional Elements
Figures Abb. 2 and Abb. 3 show the control and functional elements of LCM plus.
Lamp cover
Fig. 10: Front view
Display
Cuvette compartment
OK-key
Menu key
Cursor keys
Cal- and Measure key
Battery cover
. 11: Back view
Fi
Printer
port
Mains socket
Bit-Box
compartment
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
LCM plus is operated with 8 keys. The following table shows the keys and displays in the
operating instructions.
Definition Representation
Cursor keys
Calibration and
Measure key
Menu key
OK-Key
Display and input
area
Press left, right, upper or lower cursor key
Press blue key (Calibration)
Press green key (Measurement)
Turn instrument on
Quit submenu option
Turn instrument on
Confirm or call the selected action
Display of current values, data, submenus and
input areas of the single options. The input area
is marked by a window inviting inputs.
CAL calibration key
(blue)
Meas measure key
(green)
Menu key (grey)
OK
Aut.shut off:
30 min
Menu selection
Error messages
Selecting an option with the cursor keys or key
OK e.g..:_Config, another window opens
offering more options:
It is necessary to acknowledge every error
message by pressing the grey menu key, or the
instrument stops operating.
Switch Off
Config
Printer
Min. limit: 10
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
B2 Initial Start-Up of the Instrument
For start-up plug-in the mains plug and press the OK-key or grey menu key. The port for the
power supply unit is at the rear of the instrument (page 7, Abb. 3, Items 10 and 8). When the
instrument is on, the display indicates instrument type and number of EPROM-version while the
self-check is running. When self-check and zero measurement are over (approx. 20 sec.) you
are prompted to insert a calibration or sample cuvette.
LCM plus
V1.00
Pleas ins. cuv.
for sample
V1.00 15:20 30.06.00
LCM plus
B3 Printer Start-Up
The supply voltage for the printer is turned on and off with the green toggle switch on the
right of the printer’s front. The printer is on when the black key is in neutral position (1) and off
when key is at (0). Paper feed is done pressing the '↑' –part of key next to the printing unit.
B3.1 Connection to LCM plus
The printer is connected by plugging the supplied
connection cable to the RS232-port on the rear
side of LCM plus.
B3.2 Change paper
Turn the printer on and open the flap behind the
printing unit. Put a new reel of paper into the paper
container and unroll approx. 10cm of it. Then lead
the free beginning of the paper into the slot until
perceiving a slight resistance. Press the paper
feed key and push the paper on carefully. Hold the
key down until the paper passes the tear bar.
Finally close the flap again.
Fig. 12: Printer LD 500
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
B4 Battery Mode
LCM plus can be used with power supply unit or rechargeable batteries. For the latter mode, open
the cover of the battery compartment and insert the batteries as follows:
4. Insert the battery with the switch to the right into the holder until only one contact remains
visible.
5. Shift the battery from the left side over the contacts, passing a slight resistance.
6. A beep indicates that the batteries are placed and ready for operation (only when the
instrument is not connected to the mains).
Battery switch
Battery
Contact
Fig. 13: Insertion of rechargeable batteries
Attention: The contacts must not get into contact with metal or greasy parts.
To recharge the batteries, insert them into the compartment and connect LCM plus to the mains
with the power supply unit. We recommend a continuous loading time of 14 hours before the first
use. To exploit the battery capacity best, charge and discharge it always entirely. The display of
LCM plus informs about the current discharge degree of the battery when the instrument is turned
on. When the battery is discharged, a beep and a display message are given. The message must
be acknowledged with the grey menu key to go on working for a short while. The display
message “battery empty” means that the battery is definitely discharged and needs recharging.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
B5 Turning-Off
LCM plus turns off automatically by a timer function. Manual turning-off is possible, too.
Manual Turning-Off
Press Cursor-Key
„Switch Off“ with the OK-key. Then the instrument turns off.
Turning-Off Via Timer
On delivery, the timer of LCM plus is set to automatical turningoff time of 30 minutes. The automatical turning-off is only
active if no measurement was made within the given period
and no cuvette is in the compartment. The setting can be
modified within the tolerances of 10 to 60 minutes (cp. C8.2).
in the measuring menu and select option
Switch Off
LCM plus
Config
Printer
V1.05
14:50
17.02.00
B6 Photometric Preparation
The photometric preparation requires utmost care, because careless sample preparation is the
major source of trouble, and not the handling of the instrument itself.
Cleanliness is of vital importance in photometry. Therefore, clean the glass cuvettes immediately
after use. Employ only optically perfect samples for measuring. They must be clean and not show
any signs of opaqueness.
Air bubbles in the sample or at the cuvette sides influence the measuring result. They can be
avoided by filling the liquid slowly into the cuvette. Pasty or solid products should be melted and
filled-in without bubbles, if they cannot be measured as they are.
B6.1 Sampling And Sample Preparation
Take a sample from the product you want to measure in accordance with DIN 53242 part 1.
Eliminate turbidities by heating or filtration. Heat partly solid samples before measuring in order to
dissolve the solid share in the liquid one. The preparation must not cause any chemical changes in
the sample. During the measurement there should be no bubbles in the sample.
• There are several cuvette types available for colour measurement with LCM plus,
differing by material (glass, polystyrene or PMMA
7
) and path length (11mm and 50mm).
6
• The program calculates automatically Iodine, Hazen, Gardner, Saybolt and ASTM D 1500-
numbers under consideration of the cuvette type employed.
• For the 11mm disposable round glass cuvettes, a dry thermostat is available to warm up
to 15 cuvettes to 100°C or 148°C.
6
Acc- to DIN 6162, ed. 12.81, para. 5 a. 6
7
Polymethylmethacrylate
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
C Colour Measurement
Whenever the instrument is turned on, a zero measurement is made, taking the empty value (i.e.
the pure transmission values without cuvette inserted) of the optical beam path and comparing it
with the empty value obtained in the previous zero measurement. If the difference between both
empty values is near zero, you can start measuring without calibration. Calibration is only required
in case of considerable deviations of the empty value due to e.g. fluctuations of temperature. The
calibration remains valid until the next recalibration. LCM plus features a calibration memory fo r
both path lengths employed (50mm square cuvette and 11mm round cuvette). If you have to use
two different path lengths, owing to the nature of your samples (e.g. bright samples with Hazen
values below 50 or strongly coloured samples with greater Gardner values), it is possible to
calibrate both path lengths and then toggle between them. LCM plus uses the corresponding set
of calibration data automatically.
C1 Ca libra t io n
LCM plus features a calibration memory for 11mm Dr. Lange round cuvettes and 50mm square
cuvettes. To be on the safe side, calibrate LCM plus at least every day. In the calibration, the
employed medium is assigned a transmission of 100% over the whole spectral range. Observe
the following rules for calibration:
• The cuvette type selected for calibration must be identical to the one used for
measurement, otherwise wrong Iodine, Hazen and Gardner values are given.
• Use always clean cuvettes and fresh distilled water for calibration.
Instrument calibration for colour measurement
2. Turn-on instrument and printer, if desired. After self-check
and zero measurement, LCM plus might ask for calibration.
If LCM plus is already on, make sure the cuvette
compartment is empty and press the blue
display reads:
2. Fill a clean cuvette (material and path length to suit your
samples) with distilled water and put it into the measuring
compartment.
CA L - key. The
Zero meas.m.
Please wait
Pleas ins. cuv.
for calibration
Calibration
Please wait
4. LCM plus detects the cuvette type automatically.
4. Now press the blue
5. When the calibration is over and the printer is on, date, time and selected cuvette type are
printed, e.g. :
38
CA L - key again to trigger calibration.
BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
Calibration with 11 mm circular cuv. ok!
12:00 18.08.00
Then LCM plus prompts „Please insert sample cuvette“. Now you can insert your sample cuvette
directly. As soon as you have done so, LICO starts measuring automatically. To calibrate one
more path length, remove the cuvette and press the blue
CAL -key again.
iodine color value
Please calibrate carefully to avoid mi smeasurements
caused by faulty calibration.
70.5
_DIM ¢Conf 11°
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
C2 Colour Measurement
The colours of all transparent liquids can be measured, using 50mm square cuvettes or 11mm
round glass cuvettes, depending on their transmittances. If required, select another colour system
for printer output in the configuration menu (cp. page 19).
Instrument preparation
3. Turn instrument and printer on.
4. Calibrate the instrument as described in chapter. C1.
Measuring procedure
1. Fill the sample liquid into a cuvette and insert it into the corresponding compartment.
Measurement starts automatically.
2. After measuring, the colour values of the sample will
appear on the display
and be printed, e.g.
2.6 Iodine color value
507 Hazen color value
3. Now press the -key (DIM) until the desired colour
system appears on the display.
4. The colour system will be displayed during the
measurements to follow.
iodine color value
2.6
_DIM ¢Conf 11°
Hazen color value
507
_DIM ¢Conf 11°
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
C3 Iodine Number
DIN 6162 defines the Iodine colour number as mg of iodine per 100ml of potassium iodide solution.
Colour matching by the Iodine number serves to judge the shade depth of clear liquids like e.g.
tensides, plasticizers, resins, oils and fatty acids, whose colours resemble that of an equally
layered solution of potassium iodide. For Iodine numbers less than or about 1, the Hazen number
according to DIN-ISO 6271 should be preferred.
chapter B6. A satisfactory precision of the Iodine value is achieved with a 11mm round glass
cuvette.
Measuring procedure
8
Sampling and preparation are described in
2. Fill the sample liquid into a cuvette and insert it into the
iodine color value
corresponding compartment. Measurement starts automatically.
4. After the measurement, the colour value is indicated on the
70.5
_DIM ¢Conf 11°
display.
5. Now press the
-key (DIM) until the Iodine number appears on the display.
C4 Hazen Colour Number (APHA-Method)
The Hazen colour number (DIN-ISO 6271, also known as "APHA-Method” or “Platinum-Cobaltscale”) is defined as mg of platinum per 1l of solution. The Hazen parent solution is composed of
1.246g potassium-hexachloroplatinate (IV) and 1.00g cobaltous (II)-chloride dissolved in 100ml of
hydrochloric acid and filled up with distilled water until reaching 1000ml. The Hazen colour scale
serves to determine the colours of nearly water-clear products. It has a narrower gradation in the
light yellow range than the Iodine scale and reaches even water-clear casts.
Attention:
Samples with Hazen values between 50 and 1000 can be measured with sufficient
accuracy in 11mm round cuvettes.
Hazen values < 50 should be mesured in 50mm cuvettes,
Hazen values < 10 should be measured with the cuvette which was used for calibration,
because nearly water-clear products are susceptible to giving faulty measuring results
due to cuvette tolerances.
8
acc. to DIN 6162, Edition 12.81, para. 1
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
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Measuring procedure
Hazen color value
1. Fill the sample liquid into a cuvette and insert it into the
corresponding compartment. Measurement starts automatically.
2. After the measurement, the colour value is indicated on the
display.
20
_DIM ¢Conf 50°
3. Now press the
-key (DIM) until the Hazen number appears on the display.
C5 Gardner Colour Number
The Gardner colour number is defined in DIN ISO 4630. The lighter Gardner colour standards (1 to
8) are based on potassium-chloroplatinate solutions, colour numbers 9 to 18 on ferric(III)-chloride,
cobaltous(II)-chloride and hydrochloric acid solutions. LCM plus determines the Gardner number at
all cuvette path lengths (in 50mm cuvettes only values between 0 and 4), with 11mm cuvettes
providing sufficient accuracy.
Measuring procedure
1. Fill the sample liquid into a cuvette and insert it into the
corresponding compartment.
2. After the measurement, the colour value is indicated on the
display.
3. Now press the
appears on the display.
-key (DIM) until the Gardner number
Gardner colo
value
6.5
_DIM ¢Conf
11°
C6 Mineral Oil Colour Number ASTM D 1500 And ISO 2049
The Mineral Oil Colour Scale is used for matching the colours of mineral oil products like lubricating
oil, fuel oil, diesel oil and paraffins. The colour scale begins at 0 for water-clear, colourless oils
and ends at 8 for very dark brown oils. Visual matching is in steps of 0.5 (0.5 1.0 1.5...). LCM
displays the results in steps of 0.1. For samples of stronger hue than colour glass 8, colour value
D8 is displayed.
Owing to the intensive colour gradation of the ASTM9 D 1500 colour number, this is only
determined for the 11mm round cuvette. There is no determination of path length 50mm.
9
American Society for Testing and Materials
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
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Measuring procedure
ASTM D 1500
1. Fill the sample liquid into a cuvette and insert it into the
corresponding compartment.
2. After the measurement, the colour value is indicated on
the display.
3. Now press the
appears on the display.
-key (DIM) until the ASTM- number
4.5
_DIM ¢Conf
11°
C7 Saybolt Colour Number (ASTM D 156)
The Saybolt colour scale is used to match colours of refined oil
products like fuel and kerosene or also petroleum waxes and pharmaceutical white oils. Its
colorimetric characteristics are comparable with those of the Hazen scale (APHA). The Saybolt
scale begins at +30 (brightest coloration, corresponding to approx. 8-10 Hazen) and ends at -16
(stongest coloration, corresponding to approx. 350 Hazen).
Measurements can be made with cuvettes of 11mm or 50mm path lengths. The greater the path
length, the better the measuring accuracy (50mm recommended).
1. Fill the sample liquid into a cuvette and insert it into the
corresponding compartment.
2. After the measurement, the colour value is indicated in the
configured colour system on the display.
3. Now press the
appears on the display.
-key (DIM) until the Saybolt number
Saybolt colo
value
24
_DIM ¢Conf
50°
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
C8 Configuration
The configuration serves to select the colour systems for the print-out and general instrument
settings like e.g. date/time, language, etc.
Press cursor-key
The selection menu shown at the right opens. Move the bar to
the menu options with cursor-key
reverse presentation can be selected by pressing key
for configuration.
or . The option in
OK .
C8.1 Turning-off
After selecting option Turn-off and pressing key OK , LCM
plus is turned off.
C8.2 Configure
After selecting option Config. and pressing key OK , another
menu window opens. The small arrow
window at the right indicates that there are more options to
follow.
Langue selection
These languages are at choice: German (D), English
(GB), French (F), Swedish (S), Spanish (E), Dutch (NL), Italian
(I), Polish (PL) and Danish (DK).
Move the bar to the desired language and select it with key
.
Date and time
After selecting option Date and pressing key
opens to set date and time. Move the blinking cursor to the digit
you want to change by cursor-key
or increase or decrease the blinking digit by one. Finish the
setting with the
OK -key.
or . Cursor-keys
↓↓↓↓ in the frame
OK
OK , a window
Switch Off
LCM plus
Config
Printer
Switch Off
LCM plus
Config
Printer
Switch Off
LCM plus
Config
Printerer
Language select:
Turn-off
LCM plus
Config
D .
GB
Printer
F
S
E
Turn-off
Date Time
LCM plus
Config
17.02.00 14:50
Printer
Language
Date
Timer
Display
V1.05
14:50
17.02.00
V1.05
14:50
17.02.00
V1.05
14:50
17.02.00
V1.05
14:50
17.02.00
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
f
r
Timer
Selecting option Timer and pressing key
to set timer functions "Aut.shut off" and "delay
meas.". Set the desired value with cursor-keys
Auto shut off time
Selecting option "Aut.shut off" and pressing key
opens a window to set the turn-off time. Move the blinking
cursor to the digit you want to change by cursor-key
Cursor-keys or increase or decrease the blinking digit by
one. Finish the setting with the
Measurement delay
Selecting option "delay meas." and pressing key
opens a window to set the Measurement delay.
Move the blinking cursor to the digit you want to change by
cursor-key or . Cursor-keys or increase or
decrease the blinking digit by one. Finish the setting with the
OK -key.
OK -key.
OK opens a window
and .
OK
or
OK
Adjust timer:
Turn-off
LICO 100
Config
Aut.shut of
Printer
delay. meas.
14:50
17.02.00
Aut.shut off:
LICO 100
V1.00
30 min
14:50
17.02.00
delay. meas.
LICO 100
V1.00
00 sec
14:50
17.02.00
Display
Selecting option "Display“ and pressing key
window for display settings of "Contrast" and
"Lighting". Make your choice with the cursor-keys
and confirm it with key OK .
Printer
At this option, you can set more colour systems for printer
output. The system selected at display is marked
be printed in the first line. To add more colour systems, move
the bar to the desired system with cursor-keys
confirm your choice with the
When the cursor passes the upper or lower margin of the
menu, it pages on and shows more options. Here you can add
date and time to the measurement.
To finish the configuration of the printer output, select "back"
and press key
OK .
OK - key.
OK opens a
and
and will
and and
Adjust display:
Turn-off
LICO 100
Config
Contrast....
Lighting
Printer
Turn-off
†Iodine numbe
LICO 100
Config
¡Hazen number
†Gardner no.
Printer
†Saybolt no.
Turn-off
†ASTM D 1500
LICO 100
Config
†Date / Time
back
Printer
V1.00
14:50
17.02.00
V1.00
14:50
17.02.00
V1.00
14:50
17.02.00
The program returns to the beginning of the configuration.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
C8.3 Instrument check
LCM plus can be checked with a certified test solution set addista®-color in compliance with ISO
9000ff.
D Technical Notes
D1 Error Messages
The following display messages indicate errors of operator or instrument.
Result outside the measuring range.
***
Please remove
cuvette!
Insert paper
Error!
Calibration
No Signal
Lamp ?
If one of these error messages appears, please check whether e.g. the printer is connected
properly, calibration is correct and the sample cuvette at its place. If you still cannot eliminate the
error, contact our service department or field service.
There is a cuvette left in the cuvette compartment.
Put new reel of paper into LD 500.
The lamp is probably broken.
Exchange it as described in chapter D3.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
D2 Maintenande and Test Media Control
Even a perfected product like LCM plus requires careful handling. Use a dry cloth or a mild
household cleaner for the housing, but never solvents like naphta, acetone or the like. The optical
elements should be cleaned by our maintenance staff.
A certified set of test solutions is available for test media control according to ISO 9000ff with
order no. 6384.
The test set comprises six bottles
containing 50ml of test solution each,
a quality control certificate according
to DIN 55350 part 18, 4.1.2 and a test
protocol for the documentation of
reference, actual and tolerance
values.
LCM plus is tested as described in
enclosed test instruction. The
instrument should be tested in regular
intervals of 1 to 2 weeks, depending
on its application and frequency of use.
Fig. 14: Test solution addista-color
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
D3 Lamp Exchange
The lamp compartment is left of the display and covered with a slotted cap on the upper side of the
housing. If the lamp is broken, it should be exchanged by Dr. Lange service staff, because w e
recommend a general instrument check-up after an operating period of 1-2 years. If you insist on
doing it yourself, proceed as follows:
R e m o v e p o w e r s u p p l y u n i t o r b a t t e r y!
Remove the grey cover of the bit-box. Loosen
the fixture of the bit-box by pushing the locking
clamp and put it apart. Unplug contact
from the lamp. Loosen the metal clamps at
the upper end one be one from their stay and
hinge them away. Take the lamp off and put
in a new one with the marking pointing to the
left.
Attention: Do not touch the glass bulb of
the lamp.
Hinge the metal clamps back to their places and
fix them to their stay. Connect the new lamp
with the plug-in contact and do the same
steps as for dismantling, but in reverse sense.
Only when the instrument is mounted
completely, turn it on and test it.
Fig. 15: Removing the fixture of the
bit-box
Fig. 16: Lamp exchange
D4 RS232C-Interface of LCM plus
LCM plus has a serial interface at its rear side (page 7, Abb. 3) corresponding to RS 232 C and
V24-standard.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
D5 Technical Data
Viewing geometry: 0°/180° (transmission)
Display/operation: Backlit LC-display (128 x 64 Pixels)
Reference standard: Distilled water
Spectral range: 8 spectral wavelengths ranged from 400nm to 700nm
Wavelength accuracy: ± 2 nm
Diffuse light: < 1 %
Light source: Krypton lamp
Warming-up: approx. 2 minutes
Reproducibility: ± 2 Hazen at 50mm path width
Documentation: External printer LD 500
Control: Integated microprocessor
Measuring time: approx. 10 sec.
Program functions: Iodine number 0 ... 120
Hazen-(APHA) numberl 0 ... 1000
Gardner colour scale 0 ... 18
ASTM D 1500 number 0 ... 8
Saybolt-number +30 ... -16
Cuvettes compartment: 50mm x 10mm square cuvette
11 mm round cuvette with automatic detection
Control elements: 8 Foil keys
Data interfaces: RS 232 C for LD 500-Printer
Mains connection: power supply unit 100-240 V, 47/63 Hz
Dimensions: 260mm x 90mm x 200mm (WxHxD)
Weight: approx. 1350g
Subject to technical modifications.
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
E Annex
E1 Spares and Accessories
Identification: Quantity/Pcs. Order number:
Square plastic cuvettes 10mm * 50mm 50 6380
Square glass cuvette 10mm * 50mm 1 6376
Round glass cuvettes 11mm 494 6377
Cuvette holder for 16 round cuvettes 1 6382
Printer paper 4 reels 6388
Exchange lamp 1 6390
Test solutions addista-color 1 6384
Rechargeable battery 1.4Ah 1 6392
E2 Regulations10 and Standards
EN 1557 Colorimetric characterization of optically clear coloured liquids (products) as X,
Y, Z - tristimulus values in transmission, 10.'92 (DIN 53995)
DIN 5033 Colour measurement (ASTM E 179, ISO 7724)
DIN 6174 Colorimetric evaluation of colour differences (ASTM E 308)
DIN 6162 Determination of iodine colour number
ISO 6271 Clear liquids;Estimation of colour by the platinum-cobalt-scale (Hazen colour
number, APHA colour number, also ASTM D 1045-58, ASTM D 268-49, ASTM D
1209-62, BS 2690:1956.)
ISO 4630 Estimation of colour of clear liquids by the Gardner colour scale, also ASTM D
1544-80
ASTM D1500 Standard Test Method for ASTM Color of Petroleum Products (ASTM Color
Scale), also DIN/ISO 2049.
ASTM D156 Standard Test Method for Saybolt Color of Petroleum Products (DIN 51411).
ASTM D1925 Yellowness-Index
ASTM D 6045 Standard Test Method for Color of Petroleum Products by the Automatic
Tristimulus Method
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Standards can be ordered at: Beuth Verlag GmbH, Burggrafenstraße 6, D-12623 Berlin, ++49-30/2601-0
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
Notizen/Notes:
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BYK-Gardner GmbH LCM plus 235 017 133 DE 0302
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