BRESSER Science ETD-301 Microscope Instruction Manual

: October 30, 2023
: BRESSER

Microscope
Science ETD-301
Instruction manual

BRESSER Science ETD 301 Microscope -

Visit our website via the following QR Code or web link to find further information on this product or the available translations of these instructions.

BRESSER Science ETD 301 Microscope - qr http://www.bresser.de/download/P5806300

WARRANTY

BRESSER Science ETD 301 Microscope - qr1 www.bresser.de/warranty_terms

Imprint

Bresser GmbH
Gutenbergstr. 2
46414 Rhede
Germany
www.bresser.de
For any warranty claims or service inquiries, please refer to the information on “Warranty” and “Service” in this documentation. We ask for your understanding that unsolicited returns cannot be processed. Errors and technical changes excepted.
© 2023 Bresser GmbH All rights reserved.
The reproduction of this documentation – even in extracts – in any form (e.g. photocopy, print, etc.) as well as the use and distribution by means of electronic systems (e.g. image file, website, etc.) without the prior written permission of the manufacturer is prohibited.
The designations and brand names of the respective companies used in this documentation are generally protected by trade, trademark and/or patent law in Germany, the European Union and/or other countries.

Validity note

This documentation is valid for the products with the following article numbers: 5806300
Manual version: 0523
Manual designation:
Manual_5806300_Science-ETD-301_en-de_BRESSER_v052023a
Always provide information when requesting service.

About this Instruction Manual

NOTICE
These operating instructions are to be considered a component of the device.
Read the safety instructions and the instruction manual carefully before using this device.
Keep these instruction manual in a safe place for future reference. If the device is sold or passed on, the instruction manual must be passed on to any subsequent owner/user of the product.

Intended use

This device is not intended for use by persons (including children) with impaired physical, sensory or mental abilities, or for lack of experience and/or knowledge, unless they are supervised by or have received instructions from a person responsible for their safety on how to use this device.
This device is for personal use only.
It was developed for an magnified representation of nature observations.
The device is intended only for indoor use.

General safety instructions

DANGER
Risk of an electric shock!
This device contains electronic parts that are powered by a power source (AC adapter and/or batteries). Improper use of this product may result in electric shock. Electric shock can cause serious or fatal injuries. It is therefore imperative that you observe the following safety information.

Disconnect the power supply by pulling the mains plug when the appliance is not in use, in case of a longer interruption of operation and before any maintenance and cleaning work.
Place your device so that it can be disconnected from the power supply at any time. The power outlet should always be near your appliance and should be easily accessible, as the plug of the power cord serves as a disconnect device from the mains supply.
To disconnect the unit from the mains, always pull the mains plug and never pull the cable!
Check this device, cables and connections for damage before use.
Never attempt to operate a damaged device, or a device with damaged electrical parts! Damaged parts must be replaced immediately by an authorized service agent.
Operate the device only in a completely dry environment and do not touch the device with wet or damp body parts.

DANGER
Danger of suffocation!
Improper use of this product may result in suffocation, especially for children. It is therefore imperative that you observe the following safety information.

Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a danger of choking!
This product contains small parts that can be swallowed by children! Choking hazard!
If small parts are swallowed, consult a doctor immediately!

DANGER
Explosion hazard!
Improper use of this product may result in fire. It is essential that you observe the following safety information in order to avoid fires.

Do not expose the device to high temperatures. Use only the supplied AC adapter. Do not shortcircuit the device or batteries or dispose of in fire! Excessive heat and improper handling can cause short circuits, fires and even explosions!

CAUTION
Risk of body injury!
This device contains components and/or accessories that can cause minor or serious body injury if used improperly. It is therefore essential that you observe the following safety information in order to prevent body injuries.

Sharp-edged and pointed tools are often used for working with this device. Therefore, keep this device and all accessories and tools in a place inaccessible to children. Danger of body injury!
Chemicals and liquids do not belong in children’s hands! Don’t drink! Clean hands thoroughly under running water after use. In case of accidental contact with eyes or mouth, rinse with water. In case of complaints, consult a doctor immediately and show the substances.

CAUTION
Fire hazard!
Improper use of this product may result in fire. It is essential that you observe the following safety information in order to avoid fires.

Never cover the ventilation slots or cooling fins of the device during operation or until it has cooled down completely!

NOTICE
Danger of material damage!
Improper handling may result in damage to the unit and/or accessories. Therefore, use the device only in accordance with the following safety information.

Do not disassemble the device! In the event of a defect, please contact your dealer. They will contact the Service Center and can arrange the return of this device for repair if necessary.
Do not expose the device to high temperatures and protect it from water and high humidity.
Do not subject the device to excessive vibrations.
Only use accessories and spare parts for this device that comply with the technical specifications.

Parts overview and scope of delivery

BRESSER Science ETD 301 Microscope - fig1

Illustration 1: All parts of the microscope

1 Fixing screw (trinocular extension)
3 Power socket (incident light)
5 Slider for trinocular extension
7 Vertical pillar
9 Fine focus
11 On/Off switch
13 Object holding clamps
15 Transmitted light illumination
17 Dimmer controller (transmitted light)
19 Objective tube
21 Fixation screw (objective tube)
23 Eyepiece holder
25 Eyepiece lens| 2 Trinocular extension
4 Connection cable with DC hollow plug
6 Zoom knob
8 Friction adjustment wheel (only on left
side)
10 Coarse focus
12 Mains cable with mains plug
14 Dimmer controller (incident light)
16 Support for object plate
18 Incident light ilumination
20 Holder (microscope head)
22 Microscope head
24 Diopter adjustment
---|---

Scope of delivery:
Microscope with integrated mains power cable and plug (A), objective (fixed) (B), 2 pcs. WF 10x eyepieces (C), white object plate (translucent) (D)

Choice of location

Choose a suitable location before installation and commissioning.
Place the device on a stable, level and vibration-free surface.

Attaching and moving the microscope head

Insert the microscope head with the objective first into the holder from above.
Hand-tighten the fixing screw on the holder to fix the microscope head.
Loosen the fixing screw on the microscope head to rotate the part above the objective to the desired observation position.
Hand-tighten the fixing screw on the microscope head to lock the head in position.

Inserting the object plate

Swing the holding clamps to the sides.
Place the object plate on the support.

Setting up power supply

Insert the plug of the mains power cable into the wall socket.
Insert the DC hollow plug of the incident light power cable into the DC connection socket above the vertical pillar.

Turning on/off the device

Move On/Off switch to position ‘I’ to turn on the device.
Move On/Off switch to ‘O’ position to turn off the device.

Adjusting the illumination

This device provides an illumination with a permanently installed LED light source.
To control the brightness proceed as follows:

Turn on the device.
Turn/Move the dimmer control to adjust the brightness of the light source.
Place the object on the object plate.
Switch on incident light illumination.
Move the lamp holder to the desired position.

Observation settings

BRESSER Science ETD 301 Microscope - fig2

Illustration 2: Binocular head with diopter adjustment at the eyepiece

This microscope is equipped with an binocular head. The interpupillary distance and the diopter settings can be adjusted individually.

With the eyes look through both eyepieces.
Change the distance between the eyepieces by pushing them together or pulling apart until a circular image of the obeserved object is visible.
Turn the diopter adjustment ring to position ‘0’.
Turn the zoom button to position ‘5’.
With the left eye, look through the left eyepiece and turn the focusing wheel until a sharp image of the observed object is visible.
With the right eye, look through the right eyepiece and turn the diopter adjustment ring until a sharp image of the observed object is visible too.
The diopter adjustment can also be done in the opposite way on the left eyepiece.

Friction setting

If the friction setting is too smooth, the microscope head will move downwards by itself because the weight is completely pushing on the guide rail. This creates a blurred image.
To avoid this, tighten the friction adjustment wheel slightly.

Using the trinocular extension

BRESSER Science ETD 301 Microscope - fig3

Depending on the adapter* attached, a SLR camera, a system camera or a C-mount camera can be attached to the trinocular extension.

NOTICE! Cameras usually show a smaller field of view than eyepieces. This is in part due to the sensor size and cannot be changed.
To attach a suitable camera adapter, proceed as follows:

Loosen the fixing screw on the extension and remove the dust cover.
Push in the slider for the trinocular extension to release the function.
Insert/attach the desired camera adapter.
Tighten the fixing screw again.
Use the focus of the camera adapter to adjust the camera focus. Most camera models can thus be adjusted parfocally to the eyepieces.
NOTICE! Information on suitable accessories can be found in the chapter “Optional accessories”.
*not included in the scope of delivery / optionally available

Attaching optional accessories to the objective tube

The objective tube is equipped with an M48 x 0.75 thread for mounting ancillary lenses.
The outer notch on the lens ring is used to attach a ring illuminator.
*not included
NOTICE! Information on suitable accessories can be found in the chapter “Optional accessories”.

Cleaning and maintenance

Protect the device from dust and moisture!
Avoid fingerprints and similar contamination of the optical surfaces.
The residual moisture must be completely degraded before use.
Disconnect the power supply by pulling the mains plug when the appliance is not in use, in case of a longer interruption of operation and before any maintenance and cleaning work.
Only clean the device externally using a dry cloth. Do not use cleaning solution to prevent damage to the electronic parts.
Do not use organic solvents (e.g. alcohol, ether, acetone, xylol or other dilutions) to clean lacquered parts or plastic parts!
Disassemble optical elements (e.g. objective, eyepiece, etc) before cleaning.
Blow away loose dust from the lens surfaces first.
Use high quality lens cleaning towels or soft cloth and moisten it with a little bit of pure alcohol (available in a drug store). Wipe the lens surface with it.
Pull a dust protection cover over the microscope and store it in a closed container at a dry and mould-free place. Store the microscope and the accessories in the relevant containers when they are not used for a longer time. It is recommended to store also objectives and eyepieces in closed containers with desiccant.
(depending on the model a dust protection cover and box can be part of the content)

NOTICE
Remember:
A well maintained microscope will keep its optical quality for years and thus maintain its value.

Disposal

Dispose of the packaging materials according to its type. Information on proper disposal can be obtained from the municipal waste disposal service provider or environmental agency.
Do not dispose of electronic devices in the household garbage!
According to the European Directive 2012/19/EU on Waste Electrical and Electronic Equipment and its transposition into national law, used electrical equipment must be collected separately and recycled in an environmentally sound manner.

Optional accessories

Interchangeable eyepieces
BRESSER Wide-field eyepiece 15x/16 (30mm) with diopter adjustment
Art. no. 5943116
Adapter for trinocular extension
BRESSER Adapter for SLR and system cameras
Art. no. 5942100 (camera-specific T2 ring additionally required)
BRESSER Adapter for C-mount cameras
Art. no. 5942101
Ancillary lens for objective
BRESSER Additional objective 2.0x
Art. no. 5941496

Technical data

Article number: 5806300
Microscope head: trinocular
Object stage: yes, with translucent object plate (diam. 90 mm; thickness 5 mm)
Eyepiece(s): 2x WF 10x (30 mm)
Eyepiece field of view: 22
Objective(s): 0.7x to 6.3x
Magnification(s): 7x to 63x
Power supply: 230V mains power
Illumination: LED, dual (incident light/transmitted light), independently adjustable

Warranty

The regular guarantee period is 10 years and begins on the day of purchase. You can consult the full guarantee terms and details of our services at www.bresser.de/warranty_terms.

EC declaration of conformity

**** A “Declaration of conformity” in accordance with the applicable directives and corresponding standards has been prepared by Bresser GmbH. The full text of the EC declaration of conformity is available at the following Internet address:
www.bresser.de/download/5806300/CE/5806300_CE.pdf

UKCA declaration of conformity

**** A “Declaration of Conformity” in accordance with the applicable directives and relevant standards has been issued by Bresser GmbH The full text of the UKCA Declaration of Conformity is available at the following web address: www.bresser.de/download/5806300/UKCA/5806300_UKCA.pdf
Bresser UK Ltd. • Suite 3G, Eden House, Enterprise Way, Edenbridge, Kent TN8 6HF, Great Britain

Service

Please contact the service centre first for any questions regarding the product or claims, preferably by e-mail.
E-Mail: service@bresseruk.com
Telephone: +44 1342 837 098
BRESSER UK Ltd.
Suite 3G, Eden House
Enterprise Way
Edenbridge, Kent TN8 6HF
Great Britain
Number charged at local rates in the UK (the amount you will be charged per phone call will depend on the tariff of your phone provider); calls from abroad will involve higher costs.

Bresser GmbH
Gutenbergstraße 2
46414 Rhede · Germany
www.bresser.de
@BresserEurope