D50L - Microscope Levenhuk - Free user manual and instructions

Product type	Optical microscope
Brand	Levenhuk
Model	D50L
Magnification	40x – 1280x
Objectives	4x (NA 0.1), 10x (NA 0.25), 40x (NA 0.65) – tube length 160 mm
Eyepieces	10x and 16x
Barlow lens	2x
Linear field of view	18 mm
Stage	Dimensions 95x95 mm, vertical movement 0–15 mm
Illumination	LED transmitted and reflected
Power supply	Batteries or power adapter (included)
Digital camera	Levenhuk DEM 130, 1.3 MP, max resolution 1280x1024, CMOS 1/4"
Software	Levenhuk ToupView (viewing and editing)
Connection port	USB 2.0 (480 Mb/s)
Video recording	Yes (15 fps)
Image formats	BMP, TIFF, JPG, PICT, SFTL, etc.
Minimum PC configuration	Windows 2000/XP(SP2)/2003/Vista, USB port
Box contents	Microscope, monocular head, objectives 4x/10x/40x, eyepieces 10x/16x, Barlow lens, detachable illumination, power adapter, carry case, DEM130 camera, USB cable, adapters, installation CD, experiment kit (slides, vials, microtome, etc.)
Maintenance and cleaning	Dust regularly, clean with special Levenhuk cloth and spray, use compressed air for optics, do not disassemble objectives
Safety	Never look at an intense light source through the microscope, protect from moisture and shocks, do not disassemble yourself
Operating temperature	10–35 °C, relative humidity ≤80% at 25 °C

Frequently Asked Questions - D50L Levenhuk

What is the maximum magnification of the Levenhuk D50L microscope?

The maximum magnification is 1280x, obtained by combining the objectives (4x, 10x, 40x), the eyepieces (10x, 16x) and the Barlow lens 2x.

How to install the digital camera on the microscope?

Remove the eyepiece and insert the Levenhuk DEM 130 camera in its place. Connect the USB cable to the computer. The camera is automatically recognized; install the Levenhuk ToupView software from the provided CD.

Which operating systems are compatible with the camera?

The camera is compatible with Windows 2000, XP (SP2), 2003 and Vista. A USB 2.0 port is required.

How to clean the microscope lenses?

First use a compressed air duster to remove dust, then a soft cloth slightly moistened with alcohol or ether. Never use your fingers and do not disassemble the objectives.

What to do if the image is blurry?

Check the focus by turning the focus knob located on the base. Start with the 4x objective and slowly lower the stage until a sharp image is obtained. Make sure the Barlow lens is properly attached.

Can the microscope be used with a power adapter?

Yes, a power adapter is included in the box. You can also use batteries to power the LED illumination.

What accessories are provided with the Levenhuk D50L?

The kit includes: microscope, monocular head, objectives 4x/10x/40x, eyepieces 10x/16x, Barlow lens, detachable illumination, power adapter, carry case, DEM130 camera with USB cable and CD, as well as an experiment kit (slides, vials, microtome, etc.).

How to change the objective?

Turn the revolving nosepiece until the desired objective clicks into position. Always use the low magnification first to locate the specimen.

Can I record videos with the camera?

Yes, the camera supports video recording at 15 frames per second. Use the Levenhuk ToupView software to capture videos.

What safety precautions should I take?

Never look at an intense light source (Sun, laser) through the microscope, as it can damage your eyesight. Protect the device from moisture, shocks and extreme temperatures. Do not disassemble the optical components yourself.

USER MANUAL D50L Levenhuk

The microscope is safe for health, life and property of the consumer and the environment when properly used; the microscope meets the requirements of international standards. The microscope is designed for observing transparent objects in the transmitted and reflected light using the bright field method, for biological use and teaching demonstrations.

Levenhuk DEM200 digital camera was exclusively designed for use with this microscope. It allows transfer of the precise image of the observed object to your PC display. Levenhuk ToupView software is included in the package; it allows viewing and editing of the received images.

Specification

Magnification 40x-1280x Magnification of objective 4x, 10x, 40x Eyepiece magnification 10x, 16x Barlow lens 2x Linear field in the images space 18mm Tube length 160~mm 6,299" Stage dimensions 95× 95mm 3,74"x3,74" Stage moving range O to 15mm 0 to 0,591" Upper/Lower illumination power batteries or AC adapter supply Illumination LED

Camera model DEM200
MAX resolution (at rest) 1600x1200
Megapixels 2
Sensor 1/4" CMOS
Pixel size 2.8 m× 2.8 m Sensitivity, v/lux-sec @550 nm 1
Speed (depends on the PC model) 15 fps
Video recording Yes
Active range 68dB
Location ocular tube (not eyepiece)
Image format BMP, TIFF, JPG, PICT, SFTL etc.
Field of view diameter 18 mm
Spectral range 400-650 nm
Programmable options Image size, brightness, white balance, exposure control, etc.
Slot USB 2.0, 480 Mb/s
System requirements Windows 2000/XP(SP2)/2003/Vista; USB port
Software USB 2.0 driver, Levenhuk ToupView
Power supply via USB cable
Temperature range -30...70 °C, -86...158 °F

Legend

1 Barlow lens 2 Objectives 3 Slide holders 4 Stage 5 Lower illumination 6 Eyepiece 7 Monocular nosepiece 8 Revolving head 9 Stand 10 Focusing knob 11 Diaphragm disk 12 ON/OFF button 13 Base stand 14 USB port 15 Digital camera 16 USB cable 17 Adapters 18 Setup CD

Package

Levenhuk 40L NG

Microscope unit with stage, revolving head for three objectives, 1 Pc focusing mechanism, condenser lens and illumination

Monocular nosepiece 1 Pc

Objectives: 4x, 10x and 40x 1 Pc each

Eyepieces: 10x; 16x 1 Pc each

Barlow lens 1 Pc

Removable illumination 1 Pc

AC adapter 1 Pc

Carrying case 1 Pc

User manual and warranty slip 1 Pc each

Levenhuk 50L NG

In addition to Levenhuk 40L NG: Levenhuk K50 experiments kit:

Prepared slides 5 Pcs

Clean slides 5 Pcs

Flasks: with pitch, sea salt, yeast, brine shrimp 1 Pc each

Brine shrimp hatchery 1 Pc

Microtome1 Pc

Forceps 1 Pc

"Attractive microscope. Scrutinizing the microcosm" user guide 1 Pc

Levenhuk D50L NG

In addition to Levenhuk 50L NG: Levenhuk DEM200 digital camera:

Digital camera 1 Pc

USB cable 1 Pc

2 adapters for different microscopes 1 Pc

SETUP CD Levenhuk ToupView (auto setup guide, drivers, soft- 1 Pc

ware for image visualization, fixation and processing)

Modules description and usage

Focusing mechanism located on the stand allows vertical movement of the stage. The stage is moved by focusing knob. The total focusing value is at least 15mm

Slide holders are fixed on the stage surface. Diaphragm disk is attached to the lower part of the stage. Revolving head holds the objectives; the objectives can be replaced by rotating the ring until it reaches the fixed position.

The objectives included in the package are designed for tube length 160~mm

Objectives:

Linear magnification Numerical aperture

40,1

10 0,25

40 0,65

The 40x objective is equipped with a spring casing, which protects the frontal lens from contacting the specimen during the focus adjusting.

Using the microscope

Unpacking and getting started

• Unpack the microscope.
  Make sure all the parts are present.
• Move the stage to the lowermost position using the focusing knob.
• Press the ON/OFF button located on the back side of the microscope base next to the power cord to turn the microscope on.

Focusing

• Place an object on the stage and fix it with the slide holders.
• Rotating the revolving head, switch magnification to the 4x objective.
• Move the object to fix its thickest part exactly under the objective.
• Rotate the focusing knob to raise the stage until the objective is close to the specimen; keep checking the distance between the objective and the object to avoid their contact.
• Look through the eyepiece installed in the monocular head and lower the stage slowly rotating the focusing knob until you see the object image.

Such adjustment protects the frontal lens from contacting the object when you use objectives of other magnifications; though, slight refocusing might be required.

Selecting the objective

We recommend that you start your observations with the lowest power objective; it helps to select a segment for the detailed research. Once the segment is selected, you should center its image in the microscope's field of view. This operation should be performed as precisely as possible, otherwise the required segment might fail to appear in the field of view of the higher power objectives.

Camera

The digital camera was exclusively designed for use with this microscope.

The object image can be transferred to your PC display in its actual colors and stored in the PC memory.

Levenhuk ToupView software is included in the package; it allows viewing and editing of the received images. Supported file formats: .bmp, .jpg, .jpeg, .png, .tif, .tiff, .gif, .psd, .ico, .emf, etc.

The USB cable is used as camera power supply and for connection with PC.

Compatible OS: Windows 2000/XP/2003/Vista.

Maintenance and care

• The microscope is designed for use in macroclimatic conditions with temperate or frigid climate, in the laboratories at temperatures from 10 to 35^ (50 to 95^ ) and the relative air humidity up to 80% at 25^ ( 77^ ).
• The room should be free from dust, acid or alkali vapors, evaporations of other active substances.
• The microscope should be used in the room protected from shocks or vibrations.
• High temperatures and humidity may cause formation of mold or moisture condensation on the optical and mechanical parts of the microscope, which can negatively affect its operation.
• When not in use the microscope should be covered with a special case.

• The microscope is designed for use in macroclimatic conditions with temperate or frigid climate, in the laboratories at temperatures from 10 to 35^ (50 to 95^ ) and the relative air humidity up to 80% at 25^ ( 77^ ).

• The room should be free from dust, acid or alkali vapors, evaporations of other active substances.

• The microscope should be used in the room protected from shocks or vibrations.
• High temperatures and humidity may cause formation of mold or moisture condensation on the optical and mechanical parts of the microscope, which can negatively affect its operation.
• When not in use the microscope should be covered with a special case.
  Metallic parts should be kept clean. Special attention should be paid to maintaining cleanliness of the optics (especially objectives and eyepieces).
• To maintain the microscope, regularly remove dust off it, then clean it with a special Levenhuk cleaning cloth slightly moistened with Levenhuk cleaning spray, and afterwards wipe it with a dry soft clean tissue or cloth.
• When dust is on the objective lens, which is deep in the casing, carefully wipe the lens with a clean Q-tip slightly moistened with ether or spirits mixture.
• If you noticed dust inside the objective or film on the inside of the lenses, you should send the objective for repair.
• The noncontact Levenhuk compressed air duster for optics ensures the best cleaning results; it removes dust and dirt with air blast.
  It is prohibited to disassemble objectives and eyepieces.
• Never look at the sources of bright light or laser through the microscope: it will cause DAMAGE TO YOUR EYES!
• Do not disassemble the microscope or camera on your own.
• Keep the microscope and camera away from condensation; do not use them in rainy weather.
• Keep the microscope away from shock or excessive pressure.
• Do not overtighten the locking screws.
• Keep the microscope and camera away from hostile environment, home and car heaters, incandescent lamps or open flame.
• When cleaning any optical surfaces, first blow dust or loose particles off the surface or wipe them off with a soft brush. Then wipe the lens with a soft clean tissue slightly moistened with spirits or ether.
• Never touch the optical surfaces with your fingers.

Obecné informace

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Kamepa

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Información general

Portaobjetos vacios 5 Uds.

Moelb Levenhuk 40L NG

IHTNMB MIKPOCKONA 3 NpeMeTHNM CToNIKOM, TPNH3IOBUM 1 Wt. peBOJIbBepOM, FOKyBaJIbHIM MExaHI3MOM, IIN3OIO KOHNecOPa i DxepeJOM CBITla

MOnokyIaRHa HacaKa 1 Wt.

06'EKTHBn:4x,10x,40x no 1 wt.

OkyIaIpy: 10x, 16x no 1 wT.

JIiH3a Baploy 1 wT.

3HIMNIOCBITIOBAU1Wt.

AanTepepekeBn1wT.

Keic nI npeneceHHra 36epiraHHa 1 wT.

KepiBnntBO 3 ekcnnyatauii Ta rapaHTiHn TaIoh no 1 wT.

MoideIb Levenhuk 50L NG

DdaTkoBo do moJeI Levenhuk 40L NG - ha6ip nla docniib Levenhuk K50:

Torobi mikponpenapatn 5 wt.

Yncti npedmetHi ckeJIbua 5 wT.

Флakони: 3i CMOLOIO, 3 MOpcbKOIO cINIO, 3dpIXKJaMn, 3 no 1 wT.

apTemicio

Baanouka nla po3BeHnHa apTeMii 1 wT.

Mikpotom 1 wt.

PiHcT 1 wT.

KepiBHTBO «Attractive microscope. Scrutinizing the micro- 1 tT.

cosm.»（«Likabn Mikpockon. BvBuaeMo Mikpocbit.»）

Mодель Levenhuk D50L NG

ДодаTKOBOdo moDEJI Levenhuk 50L NG - LInΦρOBa kamepa Levenhuk DEM130:

UΦpOBAKaMepa1uT.

USB ka6eJb 1 wT.

IhctaJIauHn KOMNaKT-dNCK Levenhuk ToupView (1d 1 wT.

aBTOBcTaHOBJIeHH,paIbepn, nporpaMn Ira Bi3yaJIi3aJIi

Levenhuk Limited Warranty

All Levenhuk telescopes, microscopes, binoculars and other optical products, except for accessories, carry a lifetime warranty against defects in materials and workmanship. All Levenhuk accessories are warranted to be free of defects in materials and workmanship for six months from date of retail purchase. Levenhuk will repair or replace such product or part thereof which, upon inspection by Levenhuk, is found to be defective in materials or workmanship. As a condition to the obligation of Levenhuk to repair or replace such product, the product must be returned to Levenhuk together with proof of purchase satisfactory to Levenhuk.

This warranty does not cover consumable parts, such as batteries.

A Return Authorization (RA) Number must be obtained in advance of return. Contact the local Levenhuk branch to receive the RA number to be displayed on the outside of your shipping container. All returns must be accompanied by a written statement setting forth the name, address and telephone number of the owner, including a description of any claimed defects. Parts or products for which replacement is made will become the property of Levenhuk.

The customer will be responsible for all costs of transportation and insurance to and from Levenhuk or its authorized dealers and will be required to prepay such costs.

Levenhuk will use reasonable efforts to repair or replace any product covered by this warranty within thirty days of receipt. If a repair or replacement will require more than thirty days, Levenhuk will notify the customer accordingly. Levenhuk reserves the right to replace any product that has been discontinued from its product line with a new product of comparable value and function.

This warranty does not apply to any defects or damages resulting from alteration, modification, neglect, misuse, usage of improper power sources, damage in transportation, abuse, or any cause other than normal use, or to malfunction or deterioration due to normal wear. Levenhuk disclaims all warranties, express or implied, whether of merchantability or fitness for a particular use, except as expressly set forth herein. The sole obligation of Levenhuk under this limited warranty will be to repair or replace the covered product, in accordance with the terms set forth herein. Levenhuk disclaims liability for any loss of profits, loss of information, or for any general, special, direct, indirect or consequential damages which may result from breach of any warranty, or arising out of the use or inability to use any Levenhuk product. Any warranties which are implied and which cannot be disclaimed will be limited in duration to a term of six months for accessories from the date of retail purchase.

Some states/provinces do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations and exclusions may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state or province to province.

Levenhuk reserves the right to modify or discontinue any product without prior notice.

NOTE: This warranty is valid to USA and Canadian customers who have purchased this product from an authorized Levenhuk dealer in the USA or Canada. Warranty outside the USA or Canada is valid only to customers who purchased from an authorized Levenhuk dealer in the specific country or international distributor. Please contact them for any warranty service.

If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch:

Levenhuk Worldwide:

USA: www.levenhuk.com

Canada: www.levenhuk.ca

Czech Republic: www.levenhuk.cz

Netherlands: www.levenhuk.nl

Levenhuk optics cleaning tools

For cleaning the binoculars optics the original Levenhuk cleaning accessories are recommended.

Levenhuk, Inc. 1935 Brandon Court, Suite A-1

Chicago, IL 60139 USA

Levenhuk® is a registered trademark of Levenhuk, Inc.

© 2006-2015 Levenhuk, Inc. All rights reserved.

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