1、 Purpose
The BJ-A portable metallographic microscope, also known as a portable metallographic microscope, can be conveniently used to identify the microstructure of various metals and alloys on site or when samples cannot be made due to its built-in vertical illumination light source. The handheld metallographic microscope can be widely used in factories and laboratories for casting quality identification, raw material inspection, or research and analysis of the metallographic structure after material treatment, A handheld metallographic microscope can also be used for antique gemstones and for surface fine observation. The coaxial LED lighting can work continuously for 48 hours, and there is no need to worry about whether there is a power supply on site. The magnetic two-dimensional movement and self 360 ° rotation of the workbench make on-site sampling more arbitrary and easy to operate. The instrument can be equipped with a camera or digital photography system, and the computer can process, edit, save, and output images (such as printing) or enter multimedia systems and electronic mail boxes.
2、 Technical parameters
1. Eyepiece
| category | magnification | Focal length (mm) | Field of View (mm) | notes |
| Flat field eyepiece | 10X | 25 | Ф18 |
2. Objective lens
| category | magnification | Numerical Aperture | Working distance (mm) | notes |
| Metallographic flat field eyepiece | 10X | 0.25 | 10 | shield |
| 40X | 0.60 | 0.5 | shield |
3. Magnification factor
| eyepiece | 10× | 40× | |
| objective | 10× | 40× | 100× |
4. Instrument configuration
| Serial Number | name | number | notes |
| 1 | host | 1 piece | |
| 2 | Magnetic Base | 1 piece | |
| 3 | Eyepiece: 10X | 1 piece | |
| 4 | Objective lens: 10X, 40X | 1 each | |
| 5 | LED lamp | 1 | |
| 6 | charger | 1 piece | |
| 7 | Aluminum alloy special box | 1 |
3、 Technical parameters
1. Focusing range:
Coarse handwheel focusing range: 23mm
Focusing range of micro handwheel: 1.5mm
2. Body size: 320 * 240 * 110mm
3. Outer packaging size: 380 * 300 * 150mm
4. After packaging the instrument: 3kg
5. After packaging of Magnetic switchable device: 4.5kg
6. Light source: Brightness adjustable.
7. Voltage: charger, power supply voltage: 220V50, 60Hz
