visual fault locator VFL
Pen-design Visual Fault Locator(VFL), pen-size and light, outputs the visible red laser, and can be used for locating optical broken point which OTDR can’t find and area of high loss caused by bending. It is suitable for both single mode and multimode fiber.
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Visual Fault Locator
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visual fault locator VFL
Product Introduction
ST816B Visual Fault Locator—Pen Size
1. Summary
Pen-design Visual Fault Locator(VFL), pen-size and light, outputs the visible red laser, and can be used for locating optical broken point which OTDR can’t find and area of high loss caused by bending. It is suitable for both single mode and multimode fiber.
This VFL can supply 650nm red laser light of up to 30mW optical power and 5km distance range, its 2.5mm universal connector is suitable for SC FC or ST connector, and it has two working modes, CW and glint.
2. Functions and feature
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Operates either in CW or Pulsed
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Constant output power
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Lower Battery warning
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Long battery life
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Crash-proof and dust-proof design for laser head
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Laser case ground design prevents ESD damage
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Burning testing to ensure the reliability.
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Portable and rugged, easy to use
3. Specifications
|
Type |
ST816B-1 |
ST816B-3 |
ST816B-10 |
ST816B-15 |
ST816B-20 |
ST816B-25 |
|
Output Power |
1mw |
3mw |
10mw |
15mw |
20mw |
25mw |
|
Wavelength |
650nm±10nm |
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Light source |
LD laser |
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Connector |
2.5mm universal adapter |
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Working mode |
CW or 2Hz modulation |
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Operating temperature |
-10~+60 °C |
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Storage temperature |
-20~+70 °C |
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Power |
2pcs AA battery |
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Working hours |
≥ 50(1mW) |
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Weight |
78g(excluding batteries) |
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Dimension (mm) |
Φ:27; L:168 |
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4. Structure

5. Standard Accessories
|
No. |
Name |
Quantity |
|
1 |
ST816B VFL |
1 |
|
2 |
AA Battery |
2 |
|
3 |
User Manual |
1 |
|
4 |
Certificate of Conformity |
1 |
|
5 |
Carry Bag |
1 |
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