Celestron 44347

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Celestron TetraView LCD Digital Microscope User Manual

Model: 44347

1. Introduction

The Celestron TetraView LCD Digital Microscope is a powerful, full-featured biological microscope designed for classrooms, labs, and hobbyists. It offers advanced features for detailed observation and documentation of microscopic specimens.

Key Features:

  • 4.3" LCD Screen: Mounted on a 180° rotating head for shared viewing without eyepieces.
  • 5MP Digital Camera: Captures high-resolution still images and 30 fps video directly to an SD card.
  • Magnification: Optical magnification from 40x to 400x, with digital zoom up to 1600x.
  • Adjustable Mechanical Stage: Allows precise slide positioning for optimal viewing.
  • Dual Illumination: Adjustable bottom LED for translucent specimens and top LED for opaque objects.
  • Connectivity: SD card slot, USB 2.0, and AV output for external display.
  • Power Options: Operates on AC adapter or 4 AA batteries for portability.

2. Setup

2.1 Unboxing and Components

Carefully remove all components from the packaging. Ensure the following items are present:

  • Celestron TetraView LCD Digital Microscope
  • 8GB SD Card
  • USB 2.0 Cable (data transfer)
  • 7 Prepared Slides
  • 4-plug, multi-country AC adapter
  • Dust Cover
  • Carrying Case
  • Touch Pen (Stylus)
  • AV Cable
Celestron TetraView LCD Digital Microscope with screen displaying a specimen

Figure 2.1: Overview of the Celestron TetraView LCD Digital Microscope.

2.2 Powering the Microscope

The TetraView microscope can be powered in two ways:

  • AC Adapter: Connect the included multi-country AC adapter to the microscope's power input and a suitable wall outlet.
  • AA Batteries: For portable use, insert 4 AA batteries (not included) into the battery compartment located at the base of the microscope.

2.3 Inserting the SD Card

Locate the SD card slot on the side of the LCD screen unit. Insert the included 8GB SD card until it clicks into place. This card is essential for saving images and videos.

Close-up of the Celestron TetraView LCD Digital Microscope's ports, including SD card slot, USB, and AV Out

Figure 2.3: SD card slot and other connectivity ports.

3. Operating the Microscope

3.1 LCD Screen and Controls

The 4.3-inch full-color LCD screen provides a clear view of your specimens. It can rotate 180 degrees, allowing multiple users to view simultaneously. The touchscreen interface, used with the included stylus, provides access to various settings and functions.

Angled view of the Celestron TetraView LCD Digital Microscope, highlighting the LCD screen and objective lenses

Figure 3.1: The rotatable LCD screen for collaborative viewing.

3.2 Magnification and Objective Lenses

The microscope features a rotating objective turret with 4x, 10x, 20x, and 40x lenses. Combined with the 10x digital eyepiece, this provides optical magnifications of 40x, 100x, 200x, and 400x. The LCD screen's 4x digital zoom allows for a total magnification of up to 1600x.

Close-up view of the objective lenses on the Celestron TetraView LCD Digital Microscope's rotating turret

Figure 3.2: Objective lenses on the rotating turret.

3.3 Specimen Placement and Focusing

Place your prepared slide on the adjustable mechanical stage. Use the coarse and fine focus knobs to bring the specimen into sharp focus. The mechanical stage allows for precise movement of the slide across the field of view.

Close-up of the mechanical stage and specimen holder on the Celestron TetraView LCD Digital Microscope

Figure 3.3: Mechanical stage for precise slide positioning.

Close-up of the coarse and fine focus knobs on the Celestron TetraView LCD Digital Microscope

Figure 3.4: Coarse and fine focus knobs.

3.4 Illumination and Filter Wheel

The microscope features an adjustable bottom LED illuminator for viewing translucent specimens. A built-in 6-position filter wheel below the stage includes color and aperture filters to enhance contrast and control lighting for clearer specimen viewing.

3.5 Capturing Images and Videos

Utilize the 5MP digital camera to capture high-resolution still images and smooth 30 fps video. These can be saved directly to the included SD card. The LCD screen interface provides controls for capturing and reviewing your observations.

3.6 TV Output

Connect the microscope to a TV or monitor using the included AV cable for large-scale viewing of your specimens, ideal for presentations or group study.

Video 3.6: Official product video demonstrating the Celestron TetraView LCD Digital Microscope's features and operation.

4. Maintenance

4.1 Cleaning

To clean the microscope's exterior, use a soft, damp cloth. For optical surfaces (lenses, screen), use a lens cleaning solution and a microfiber cloth specifically designed for optics. Avoid abrasive materials or harsh chemicals.

4.2 Storage

When not in use, cover the microscope with the included dust cover to protect it from dust and debris. Store it in the rugged canvas carrying case for transport or long-term storage to prevent damage.

5. Troubleshooting

5.1 No Power

  • Ensure the AC adapter is securely connected to both the microscope and a working power outlet.
  • If using batteries, check that they are correctly inserted and not depleted. Replace if necessary.

5.2 Blurry Image

  • Adjust the coarse and fine focus knobs slowly.
  • Ensure the objective lens is clean and free of smudges.
  • Verify the specimen slide is correctly placed on the mechanical stage.

5.3 Screen Not Displaying Image

  • Check power connection.
  • Ensure the microscope is turned on.
  • Adjust illumination settings.

6. Specifications

FeatureDetail
Product Dimensions5.5 x 13 x 7 inches
Item Weight4.18 pounds
Item model number44347
Batteries4 AA batteries required (not included)
Light Source TypeLED
MaterialPE (Polyethylene)
ColorBlack
Magnification Maximum1600x (Optical up to 400x, Digital up to 1600x)
Voltage240 Volts (AC adapter)
Objective Lens Description(4) Achromatic objectives on turret (4x, 10x, 20x, 40x)
Camera Sensor5MP
LCD Screen Size4.3 inches

7. Warranty and Support

7.1 Warranty Information

Your Celestron TetraView LCD Digital Microscope includes a 2-Year US Warranty. Please retain your proof of purchase for warranty claims.

7.2 Customer Support

For unlimited support, contact Celestron's team of US-based experts. You can also refer to the official user manual for more detailed instructions and support:

Download Official User Manual (PDF)

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