Levenhuk DTX 90, User Manual

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. 

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

MicroCapture Pro 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 

MicroCapture Pro

 file to the 

desktop.

 U

se a USB cable to connect the microscope to your computer. Run the 

MicroCapture Pro application by double-clicking its icon.

A magnified image of the observed specimen may be seen in the main window of the 
application. 

F

rom the 

Options

 menu, select 

Preview Size 

to set the image resolution. 

Keep in mind that 

t

he preview window cannot be resized (standard resolution is 

640x480). The image resolution 

i

s 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.

C

lick the corresponding icon on the toolbar or select 

Photo

 from the 

Capture

 menu to 

capture 

a

n image. An image thumbnail will appear on the right side of the main window. 

C

lick 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.

4

Note: 

during recording, the camcorder icon on the toolbar will turn red. Click the icon again 

t

o stop recording.

Image and video thumbnails are displayed on the right side of the main window of the application.

D

ouble-click an image thumbnail to open it in a separate preview window. 

Editing images 

w

ith MicroCapture Pro application is similar to working with other applications in 

Mac OS. 

Care and maintenance

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

.

 White LEDs are very bright; do not look at them as this may cause permanent 

damage to your vision. Take necessary precautions when using the device with children or others 
who have not read or who do not fully understand these instructions. After unpacking your 
microscope and before using it for the first time check for integrity and durability of every 
component and connection. Do not try to disassemble the device on your own for any reason. For 
repairs and cleaning of any kind, please contact your local specialized service center. Protect the 
device from sudden impact and excessive mechanical force. Do not apply excessive pressure when 
adjusting focus. Do not overtighten the locking screws. Do not touch the optical surfaces with your 
fingers. To clean the device exterior, use only special cleaning wipes and special optics cleaning 
tools from Levenhuk. Abrasive particles, such as sand, should not be wiped off lenses, but instead 
blown off or brushed away with a soft brush. Do not use the device for lengthy periods of time, or 
leave it unattended in direct sunlight. Keep the device away from water and high humidity. Be 
careful during your observations, always replace the dust cover after you are finished with 
observations to protect the device from dust and stains. If you are not using your microscope for 
extended periods of time, store the objective lenses and eyepieces separately from the microscope. 
Store the device in a dry, cool place away from hazardous acids and other chemicals, away from 
heaters, open fire and other sources of high temperatures. To avoid data loss or equipment 
damage, always close the application first, and then disconnect the microscope from your PC. Wait 
until the illumination goes off completely, and disconnect the microscope. Seek medical advice 
immediately if a small part or a battery is swallowed.

Battery safety instructions

Always purchase the correct size and grade of battery most suitable for the intended use. Always 
replace the whole set of batteries at one time; taking care not to mix old and new ones, or batteries 
of different types. Clean the battery contacts and also those of the device prior to battery 
installation. Make sure the batteries are installed correctly with regard to polarity (+ and -). Remove 
batteries from equipment that is not to be used for an extended period of time. Remove used 
batteries promptly. Never attempt to recharge primary batteries as this may cause leakage, fire, or 
explosion. Never short-circuit batteries as this may lead to high temperatures, leakage, or 
explosion. Never heat batteries in order to revive them. Remember to switch off devices after use. 
Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning.