VFL-22M - Uncategorized JILONG - Free user manual and instructions

Product Type	Visual Fault Locator (VFL)
Brand	JILONG
Model	VFL-22M series (VFL-22M-10, VFL-22M-20, VFL-22M-30)
Output Power	10 mW / 20 mW / 30 mW (model dependent)
Detection Distance	5-8 km / 12-15 km / 20-25 km
Operating Hours	12 h / 10 h / 4 h
Wavelength	650 nm
Laser Type	LD
Modulation Frequency	CW / 2 Hz
Operating Temperature	-20 to +60 °C
LED Light	Yes (for dark environment)
Power Supply	2 x AAA 1.5V batteries
Dimensions	120 x 35 x 20 mm
Weight	50 g (including batteries)
Connector Type	2.5 mm universal adaptor (FC/SC/ST)
Silicone Dust Cap	Yes
Pocket Size	Yes
Main Functions	Visual fault localization, continuity checking, fiber identification
Safety	Avoid direct eye exposure; do not point laser into eyes
Maintenance & Cleaning	Keep clean; store in dry place; clean with dry cloth
Spare Parts & Repairability	Batteries (AAA) replaceable; no user-serviceable parts inside
General Information	Includes silicone dust cap and batteries; warranty not specified

Frequently Asked Questions - VFL-22M JILONG

What is the JILONG VFL-22M used for?

The VFL-22M is a visual fault locator used to detect breaks, bends, and faults in optical fiber cables by emitting a visible red laser light.

How do I use the VFL-22M?

Connect the 2.5mm universal connector to the fiber under test. Press the power button to activate the laser. The red light will appear at the fault location. Use the CW/2Hz mode switch for continuous or flashing output.

What is the maximum detection distance?

The detection distance depends on the model: VFL-22M-10 up to 8 km, VFL-22M-20 up to 15 km, and VFL-22M-30 up to 25 km. Actual distance may vary due to fiber conditions.

How do I replace the batteries?

Remove the battery cover (likely on the back). Replace with two AAA 1.5V batteries, observing correct polarity. Reattach the cover.

Can I use the VFL-22M with different connectors?

Yes, the device has a 2.5mm universal adaptor compatible with FC, SC, and ST connectors. No adapter change required.

Is the laser safe for eyes?

The laser is powerful (up to 30 mW) and can cause eye damage. Never look directly into the beam or point it at others. Avoid reflection from shiny surfaces.

How to clean the VFL-22M?

Use a soft dry cloth to wipe the exterior. Clean the connector end with a lint-free swab and isopropyl alcohol if needed. Keep the dust cap on when not in use.

What does the LED light on the device do?

The built-in LED light illuminates the work area in dark environments, making it easier to handle connectors and fibers.

How to choose between VFL-22M models?

Select based on required distance: -10 for short range (up to 8 km), -20 for medium (up to 15 km), -30 for long range (up to 25 km). Higher power models have shorter battery life.

Does the product come with a warranty?

Warranty information is not provided in the manual. Contact JILONG at [e-mail] or [phone] for support.

USER MANUAL VFL-22M JILONG

MiNi

Mini size

2.5mm Universal connector

LED light

Features Description

Pocket size
Silicone dust cap
Measuring up to 30km, high stability

With LED lights for dark environment
Strong light source, strong penetrating power
2.5mm Universal adaptor for FC/ SC/ ST

Measuring up to 25km

2.5mm Universal Connector

Three-panel image showing a blue SC S device with attached metal components, no visible text or symbols.

Product Parameters

Model	VFL-22M-10	VFL-22M-20	VFL-22M-30
Output power	10mW	20mW	30mW
Detection distance	5-8km	12-15km	20-25km
Operating hours	12H	10H	4H
Wavelength	650nm
Laser type	LD
Modulation frequency	CW / 2Hz
Operating temperature	-20 ~ +60 (°C)
LED	Support
Power	AAA 1.5V batteries x 2
Dimensions	120 x 35 x 20 (mm)
Weight	50 g (Including batteries)

1. Measuring distance depends on factors such as optical fiber bending, connector, quality, etc.
2. The above data were obtained by Jilong Laboratory in 20°C

Product Display

Blue handheld device with warning symbols and a label reading 'LABERTILENT' (no readable text or symbols beyond the label)

Close-up of a purple laser light device with control buttons and a warning symbol (no readable text or labels)

Close-up of a purple handheld device with a black handle and metallic shaft (no visible text or symbols)

Contact us

Nanjing Jilong Optical Communication Co., Ltd

Add: Room 401-402, Building 14-1, Xingzhihui Business Garden, No.19

Xinghuo Road, Pukou District Nanjing, Jiangsu, 210032, China

Tel: [phone]

Mail: [e-mail]

Web: www.JILONGOT.com

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