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**B Series Biological Microscope**
The B series biological microscope is a high-performance optical instrument designed for use in educational and research settings. It is ideal for observing biological specimens such as tissue slices, cells, bacteria, and living cultures, as well as transparent or semi-transparent materials like powders and fine particles. Its advanced optical system ensures clarity and precision, making it an essential tool in laboratories and classrooms.
**Specifications:**
- **Model No.:** B204LED
- **Shape:** Cylindrical Shaped Lens
- **Usage:** Teaching, Research
- **Principle:** Optics
- **Optical Principle:** Finite Optical System
- **Nosepiece:** Quadplex
- **Condenser:** Abbe N.A. 1.25 (Iris Diaphragm)
- **Base:** 3W LED Illumination Systems
- **Plan Objective:** 4X/10X/40X/100X
- **Trademark:** Optec
- **Transport Package:** Carton
- **Specification:** 337x242x417 mm
- **Origin:** Chongqing
- **HS Code:** 9011100000
**Total Magnifications:**
| Objective | 4X | 10X | 40X | 100X |
|-----------|----|-----|-----|------|
| 10X | 40X | 100X | 400X | 1000X |
| 16X | 64X | 160X | 640X | 1600X |
**Objectives Details:**
| Objective | Numerical Aperture (N.A.) | Field Number φ18 | Field Number φ20 | Resolving Power | Achromatic Working Distance | Plan Working Distance |
|-----------|---------------------------|------------------|------------------|------------------|----------------------------|------------------------|
| 4X | 0.10 | 4.5mm | 5mm | 2.8µm | 13mm | 16mm |
| 10X | 0.25 | 1.8mm | 2mm | 1.1µm | 6.3mm | 2mm |
| 40X (S) | 0.65 | 0.45mm | 0.5mm | 0.42µm | 0.44mm | 0.66mm |
| 100X (Oil) (S) | 1.25 | 0.18mm | 0.2mm | 0.22µm | 0.3mm | 0.42mm |
The B204LED model features a robust and user-friendly design, with a 3W LED illumination system that provides bright and even lighting. The quadplex nosepiece allows for smooth switching between objectives, while the Abbe condenser enhances image resolution and contrast. This microscope is perfect for both beginners and professionals looking for a reliable and versatile instrument for their laboratory needs.
The housing is typically installed underground or at ground level, near the water supply line. It is important for the housing to be securely sealed to prevent any water leaks or unauthorized access.
Water meter housings come in various sizes and designs to accommodate different types and sizes of water meters. They are an essential component of water distribution systems as they help protect and maintain accurate measurement of water usage.