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Levenhuk DTX TV
Digital Microscope
User Manual
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Levenhuk DTX TV
Digital Microscope
EN
Never, under any circumstances, look directly at the Sun,
another bright source of light or at a laser through this device,
as this may cause PERMANENT RETINAL DAMAGE
and may lead to BLINDNESS.
Microscope assembly
Take the microscope and all accessories out of the package. Place the stage on a stable surface. Attach the
mount locking ring (17) to the metal tube of the mount. Insert the metal tube into the opening on the stage and
lock it in place with the ring (17). Insert the microscope into the clamp on the mount arm and tighten the locking
screw (14). Tighten the locking knob (13) to lock the mount arm in place. Place a specimen on the stage and use
the coarse focus knob (16) to focus your view. Use the fine focus knob (11) for maximum precision and
sharpness. Upon focusing your view, tighten the focus lock knob (15) to lock the results.
PortableCaptureHD software
Insert the installation CD into your CD drive. The Main Menu window will be displayed. Click the Install
PortableCaptureHD to install the application and follow the instructions on screen. The installation CD contains
a copy of this user manual, which you can read by clicking the corresponding entry in the Main Menu. Connect
the microscope to your PC with a USB cable and run the PortableCaptureHD application. A pop-up message will
warn you if the microscope is not connected to the PC.
Microscope parts
Capture
an image Start and stop
video recording
Sequence capture (you can set the time to begin
capturing images or videos, interval between them,
video duration and the number of images or videos
to be captured)
Full screen mode. To exit full screen mode,
press Escape on your keyboard or double-click
anywhere on the screen
The kit includes: microscope, microscope stand, AC adapter, USB cable,
HDMI cable, calibrating scale, software CD, user manual.
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Menu
Capture/OK
Down
LED
Focus wheel
Magnification ruler
Screws
DC-in & USB port
HDMI port
MicroSD slot
LED Dimmer
Power on/off
Mode (Playback/Photo)
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4
14
11
12
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16
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Using the microscope
Connection to TV/monitor with HDMI input
1) Connect the microscope to the TV/monitor by inserting the HDMI cable into the HDMI
input port. Turn on the power of your TV/monitor and select the HDMI setting.
2) Power the microscope with the supplied power adapter. If the microscope is not
already on, turn on the power of the microscope by pressing the Power on/off button (5)
if the device is not turned on, and then you can start the preview on the screen.
Capturing an image
1) Insert a microSD card into the microSD slot (3). Maximum card size is 32GB.
2) Turn the Focus wheel (11) to focus the image of your object to its best focus.
3) Press Capture/OK button (8) and the captured photo will be captured and saved to the
microSD card.
Playback
1) Insert microSD card in slot.
2) Press Mode button (6) to switch to playback mode.
3) Press Down botton (9) to watch the previous captured photo. Press Mode button (6)
again to return to preview.
Mass storage on PC
1) Insert microSD card in slot.
2) Connect the microscope to PC by USB cable for downloading images from card to
your computer.
Preview on PC
1) Only works with supported software installed.
2) Remove microSD card from the slot.
3) Connect the microscope to PC by USB cable.
Main menu I
Press Menu button (7) to open the main menu. From this menu you can set image
resolution, adjust image exposure, quality and sharpness, as well as set parameters for
sequence capture. Also this menu contains Time-lapse and Date Stamp functions.
Resolution
Select Resolution from the main menu I and choose the required image resolution, by
pressing the Down button (9) then confirm by pressing Capture/OK button (8).
Note: this model supports the following resolutions: WVGA/2M/3M/5M/8M/14M.
Time-lapse Capture
From the main menu I, choose Time-lapse Capture and then enter Time setup:
Lapse Num: input quantity of frames you want to take by Down button (9) and change the
block by pressing Mode button (6). The maximum number is 999, which means 999 pictures
will be automatically captured within the selected interval time.
Lapse Time: input interval time between frame capture by Down button (9) and change the
block by pressing Mode button (6). The maximum number is 999, which means the time
interval for each capture is 999 seconds.
Press Capture/OK button (8) to confirm selection and press Menu button (7).back to preview
status. Then press Capture/OK button (8) to start auto capture. When in auto capture status,
the image quantity will be shown at the upper right corner.
When all frames are captured, microscope will return to normal preview.
For Time-lapse capturing the auto power off time should be longer than the time lapse
set. 30 minutes setting is recommended.
Quality
Select Quality from the main menu I and choose one of the existing settings. This will change
the compression rate of captured images.
Sharpness
Select Sharpness from the main menu I and choose one of the existing settings.
Exposure (Brightness)
Select Exposure from the main menu I and then select a target value.
Date Stamp
Select Date Stamp from the main menu I and then select a target option.
Main menu II
Press Menu button (7) to enter main menu I, and then press it once more to enter main menu
II. This section allows you to set the interface language, turn on the power saving mode,
change the display frequency, hide or display date and time, set up the TV connection, format
the SD card, reset settings and check the hardware version.
Date and time
Select Date/Time from the main menu II by Down button (9) and set the current date and time.
Press Capture/OK button (8) to confirm entry. You can also choose one of the following date
formats: YY/MM/DD, DD/MM/YY or MM/DD/YY. Press Menu button (7) to return to preview
mode.
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Power saving
Select Auto Power Off from the main menu II and set the idle time before the
microscope automatically shuts down. Press Capture/OK button (8) to confirm
selection.
Language
Select Language from the main menu II and choose one of the existing settings.
Press Capture/OK button (8) to confirm selection.
TV connection
Select TV Mode from the main menu II and then select, between NTSC and PAL, the
correct mode compatible with your TV. Press Capture/OK button (8) to confirm
selection.
Display frequency
Select Frequency from the main menu II and choose one of the existing settings.
Press Capture/OK button (8) to confirm selection.
Format microSD card
Select Format SD from the main menu II to format the installed memory card. All
the files on the card will be deleted after card formatting. Normally card
formatting is not necessary, unless your card is not able to store the captured
image.
Settings reset
Select Default Setting from the main menu II to revert back to factory settings.
Hardware version
Select Version from the main menu II to check the current hardware version.
File
Photos Directory: set a directory for captured images.
Videos Directory: set a directory for recorded videos.
Options
Resolution: set image resolution.
Date/Time: hide or display date and time of capture during preview.
Language: change the language of the user interface.
XY Guide: hide or display a grid on images.
Full screen mode: go full screen.
Capture
Photo: capture an image.
Video: record a video.
Save as
Copy to clipboard
Copy file
Previous image
Next image
Undo the last action
Repeat the last action
Draw
Text
Measurement
Calibration
Capturing an image
Click the corresponding icon on the toolbar or select Photo from the Capture menu.
Recording a video
Click the corresponding icon on the toolbar or select Video from the Capture menu.
Sequence capture
Click the corresponding icon on the toolbar. A dialog window will appear where you can set
a number of parameters for sequence capture. Click the Photo radio button to set the time
to begin capturing images, interval between them and the total number of images. Click the
Video radio button to set the time to begin recording videos, their duration, interval
between them and the total number of clips.
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Calibration
Before calibrating the microscope, turn the grid display on. To do so, select on from
Options > XY Guide. By default, the grid is visible. Place the calibration scale on the stage
and focus your view. Make sure that the vertical axis of the grid is parallel to scale
divisions and capture an image. Double-click the image thumbnail to open it in a separate
window.
Click the corresponding icon on the toolbar to begin calibration. Using your mouse,
choose two points on the image (you have to know the actual distance between these two
points). Once you choose the second point, a dialog window will open, where you have to
enter the known distance in the Actual dimension field. The application will automatically
calculate the magnification of the image. Click OK to close the dialog window. The
calculated magnification will be displayed in the Magnification field.
Note: chosen points should form a horizontal line.
You can check calibration results by measuring the same distance with the Any Angle
Line tool. Click the measurements icon, choose the Any Angle Line tool and draw a
similar line on the image. If the measured distance is equal to the actual distance,
calibration has been successful.
Recalibration
The calibration process has to be repeated if the magnification or focus has been changed
during observations.
Click the corresponding icon on the toolbar again and select Reset picture magnification
from Reset magnification. Repeat the calibration process, as described above. Change
the magnification and capture a few images. Double-click one of the thumbnails to open
the resulting image in a preview window. Click the calibration icon on the toolbar and
select Set picture magnification from Set magnification. Enter the current magnification
in the dialog window that appears and click OK.
If you want to use the same magnification when capturing images in the future, click the
calibration icon on the toolbar and select Set capture magnification from Set
magnification.
Measurements
It is recommended to calibrate the system before proceeding with measurements.
Any Angle Line. Press and hold the left mouse button to start drawing a line.
Release the left mouse button to complete the line.
Continuous Line. Use this tool to draw a curve on the image and measure its length.
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Radius Circle. Draw a straight line on the image. The application will automatically
calculate the radius, as well as circumference and area of the corresponding circle.
Diameter Circle. Draw a straight line on the image. The application will automatically
calculate the diameter, as well as circumference and area of the corresponding circle.
Three Points Angle. Place three points on the image with your mouse. The application
will automatically calculate the angle value.
Draw and text
PortableCaptureHD allows you to add drawings and textboxes to your images. Open an
image in a preview window and click the Pencil icon on the toolbar. Select one of the
tools from the drop-down menu and draw something on the image. By clicking the TT
icon on the toolbar, you can edit font type and color to be used in textboxes.
Working with the application for Mac OS users
Browse to the mac folder on the installation CD and copy PortableCaptureHD file to the
desktop. Use a USB cable to connect the microscope to your computer. Run the
PortableCaptureHD application by double-clicking its icon.
A magnified image of the observed specimen may be seen in the main window of the
application. From the Options menu, select Preview Size to set the image resolution.
Keep in mind that the preview window cannot be resized (standard resolution is
640x480). The image resolution is shown in the bottom left corner of the preview
window.
From the Options menu, select Date/Time to display or hide the date and time of capture
during preview.
Click the corresponding icon on the toolbar or select Photo from the Capture menu to
capture an image. An image thumbnail will appear on the right side of the main window.
Click the corresponding icon on the toolbar or select Video from the Capture menu to
start recording a video. A video thumbnail will appear on the right side of the main
window.
Note: during recording, the camcorder icon on the toolbar will turn red. Click the icon
again to stop recording.
Image and video thumbnails are displayed on the right side of the main window of the
application. Double-click an image thumbnail to open it in a separate preview window.
Editing images with PortableCaptureHD application is similar to working with other
applications in Mac OS.
From the main menu, select Quit PortableCaptureHD to exit the application.