ColorLite sd350 User manual

User Manual sd350
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User Manual
Densitometer - ColorLite sd350

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Densitometer
The ColorLite sd350 densitometer is a system for measuring optical
density for example of films. The sample is placed on the table and with
help of the arm supporting the probe head, the measurement is triggered.
The display on the arm is used to show measured values and menu
settings.
Connecting the Densitometer to the PC
On the back of the densitometer arm are three sockets (see Fig.: 1
Sockets). On the left is the USB slot for data transfer to a PC, in the
middle is the socket for the power supply and on the right the connection
for the light source (densitometer viewed from the rear).
Different numbers of pins in the sockets prevents an incorrect assembly.
(Fig.: 1–Sockets)
USB 2.0
6 V / 1.4 A
Power Supply
Light source

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Operation
WARNING!
Measurements must not be carried out without inserted the round
metal aperture plate, otherwise the glass of the lamp may be
damaged.
The densitometer is operated by the two buttons (S1 and S2) with
feedback given on the display (see Fig.:2-Densitometer arm).
(Fig.: 2–Densitometer arm)
The densitometer is turned on by pressing the S1 button ("Zero Cal.").
And is turned off by holding the S1 button down for two seconds, while
the arm is an upper position.
S1-Button („Zero Cal.“) functions
Arm is in an upper position: ON/OFF (2 sec. duration).
Menu navigation.
Arm pressed down: Zero calibration.
S2-Button („D3 Cal.“) functions
Arm is in an upper position: Settings menu is opened (hold for 3 sec.)
Arm pressed down: Calibration with the density 3 filter
Abbildung 1 - Spektralphotometer
Display
S1 „Zero Cal.“
S2 „D3 Cal.“

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A measurement is triggered when the arm is pressed fully down. During
the measurement, the arm must continued to be pressed fully down.
When the measurement is completed, the density value or CIE L*a*b*
values are displayed (See Fig.: 3 Start the measurement).
(Fig.: 3 –Start the measurement)
Calibration
Zero calibration:
Place the aperture into the recess for the disc (see Fig.: 4 - Aperture) and
push down the measuring arm. A measurement will be triggered. Now
continue to hold the arm down and at the same time press the S1 button
to start the calibration. When the calibration is finished, the density value
will be displayed. Now the arm can be returned to the horizontal position.
(Fig.: 4 - Aperture)

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Density 3.0 (D3) - Calibration:
Place the D3 filter in die recess instead of the normal aperture and press
the arm downwards. A measurement will be triggered. Now continue to
hold the arm down and at the same time press the S2 button to start the
D3 calibration. Keep the arm down until the density value is displayed,
which means the calibration routine is finished. This can take up to 4
seconds. Now return the arm back to the horizontal position.
Settings-Menu
You can access the densitometer settings menu by pressing the S2 button
for three seconds, while the arm is in the upper, horizontal position (see
Fig.: 5 main menu). Press the S1 button to scroll through the menu and
press the S2 button to selection a menu setting. Choose "Exit" to navigate
to the main menu and to leave the settings menu altogether (see Fig.: 6 -
exit and Fig.: 7 - Exit 2).
(Bild 5 –Main menu)
(Bild 6 –Exit) (Bild 7 –Exit 2)

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In the main menu settings from different categories can be selected and
changed (see Fig.: 5 main menu).
"Language": Select the menu "language" with S2. You can choose
between German and English with the S1 button (see Fig.: 8 Language
selection). Confirm your choice with S2. To switch from the language
menu to the main menu, select "Exit" (see Fig.: 7 –Exit 2).
(Fig.: 8–Language selection)
"Display CIE L*a*b* values": Toggle between displaying the CIE
L*a*b* values and the density value by pressing the S2 button and letting
it go immediately.
(Fig.: 9 –CIE L*a*b*-Output)

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Default Settings
„Calibration warning“(Zero calibration):The default setting for the zero
calibration warning is 26 hours (26h).
„Calibration warning D3“:The default setting for the D3 calibration
warning is 7 days and 2 hours (d7).
„Angle“:The standard observer angle default setting is "2°".
"Illuminant ": The default standard illuminant setting is set to "D65".

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Technical Data
Dimensions
(Height x Length x Width)
210 mm x 570 mm x 404 mm
Weight
11.4 kg
Arm span
350 mm
Maximal sample width
700 mm
Measurement geometry
d/0° - according to the DIN 4512-8
Standard illuminants
D65, D50, A, C, F11
Standard observer
2°, 10°
Colour metric values
Density; CIE L*a*b*; Yxy; X,Y,Z
Density range
D 0.000 to D 6.000
Spectral range
400 –700 nm
Spektral resolution
Holographic grating spectrometer
FWHM at 500 nm < 10 nm
Sampling rate 3.5 nm steps
115 x 16-Bit values per scan
Display
High resolution TFT colour display:
1/4-VGA, 320 x 240 Pixel
Repeatability
D = +/- 0.005 at 5D
(MSA type 1 - study)
Light source
High powered LEDs positioned in an
integrating sphere
Measurement time
0.5 to 2.0 seconds dependent on
density
Language
German, English
Power supply
6 V/1.4 A
PC-Interface
USB 2.0
Delivery includes
Aperture, USB-cable, Power supply
Climatic conditions
Ambient temperature: 15°C to
45°C - Relative humidity: max.
85% non-condensing

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ColorLite GmbH
Am Mühlengraben 1
37191 Katlenburg-Lindau
Germany
[phone]
[phone]
[email protected]
www.colorlite.de