1. Вовед
The Noyafa NF-909C is a compact and easy-to-use 2-in-1 testing instrument designed for optical fiber networks. It integrates both an optical power meter and an optical light source, making it suitable for absolute optical power measurements and insertion loss tests. This device offers a wide range of power measurement, high accuracy, and stable output, providing a cost-effective solution for fiber optic testing.
2. Информации за безбедност
- Прочитајте го прирачникот: Before operating the device, thoroughly read and understand this user manual.
- Безбедност на батеријата: Use only specified 1.5V batteries (3x AAA). Do not mix old and new batteries or different types of batteries. Remove batteries if the device will not be used for an extended period.
- Ласерска безбедност: The optical light source emits laser radiation. НЕ look directly into the optical output port or into a fiber connected to the light source. Direct exposure to laser light can cause severe eye damage.
- Еколошки услови: Operate the device within the specified operating temperature range (-10°C to +60°C). Avoid exposure to extreme temperatures, humidity, or dust.
- Чистење: Keep optical connectors clean. Use only approved cleaning methods and materials to avoid damaging the fiber end-faces.
- Одржување: Не обидувајте се да го отворите или поправите уредот. За сите сервиси обратете се на квалификуван персонал.
3. Содржина на пакетот
По распакувањето, проверете дали сите предмети се присутни и во добра состојба:
- Noyafa NF-909C Fiber Optic Tester Unit
- Упатство за употреба
- Protective Cap for Optical Ports
- (Batteries may or may not be included depending on the retailer)
4. Производот завршиview
The NF-909C features a clear LCD display, intuitive control buttons, and standard optical connectors for versatile use.

Слика 1: Предна страна view of the Noyafa NF-909C Fiber Optic Tester. This image shows the device's display screen, the red control buttons (Power, REF, dBm/W, λ, Hz), and the two optical input/output ports on the front, protected by a red cap. The device is black and red.

Слика 2: Страна view of the Noyafa NF-909C Fiber Optic Tester. This image highlights the micro USB port located on the side of the device, which may be used for power or data transfer, though its primary function is typically for charging or external power supply. The red protective cap is shown detached.
Клучни компоненти:
- LCD дисплеј: Shows measurement readings, selected wavelength, unit, and battery status.
- Контролни копчиња: Power On/Off, Reference (REF), Unit (dBm/W), Wavelength (λ), Frequency (Hz).
- Optical Power Meter Input: Typically supports SC, ST, LC connectors (optional).
- Optical Light Source Output: Typically FC connector (SC, ST, LC optional).
- Оддел за батерии: Located on the rear, for 3x 1.5V batteries.
- Микро USB порта: For power supply or charging (refer to Figure 2).
5. Поставување
5.1 Инсталација на батерија
- Пронајдете го капакот на преградата за батерии на задната страна од уредот.
- Лизнете го или одкопчете го капакот за да го отворите.
- Вметнете три (3) батерии од 1.5V AAA, внимавајќи на точниот поларитет (+/-) како што е наведено во внатрешноста на преградата.
- Добро заменете го капакот на преградата за батерии.
5.2 Почетно вклучување
Притиснете и задржете го Моќ button to turn on the device. The LCD display will illuminate, showing the current mode and settings.
6. Упатства за работа
6.1 Optical Power Meter Mode
This mode measures the absolute optical power or relative loss in optical fiber networks.
- Connect Fiber: Connect the optical fiber to be tested to the Power Meter input port. Ensure the connector is clean.
- Изберете бранова должина: Притиснете го λ button to cycle through the available calibrated wavelengths: 850nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm. Select the wavelength matching your light source.
- View Мерење: The display will show the optical power in dBm.
- Change Unit: Притиснете го dBm/W button to switch between dBm and W (Watts) units.
- Set Reference (REF): For relative measurements (loss), connect a known good fiber to a stable light source and the power meter. Press the РЕФ button to set the current power reading as the reference (0dB). Subsequent measurements will show the loss relative to this reference.
- Frequency Identification: The power meter can identify modulation frequencies from 10Hz to 60KHz. If the incoming signal is modulated, the frequency will be displayed.
6.2 Optical Light Source Mode
This mode provides a stable optical signal for testing fiber optic cables.
- Connect Fiber: Connect the optical fiber to be tested to the Light Source output port. Ensure the connector is clean.
- Изберете бранова должина: Притиснете го λ button to cycle through the available wavelengths: 1310nm and 1550nm. Select the desired wavelength.
- Select Modulation Frequency: Притиснете го Hz button to cycle through modulation frequencies: 270Hz, 1KHz, 2KHz, or continuous wave (CW).
- Излезен сигнал: The device will emit a stable optical signal at the selected wavelength and modulation.
6.3 Функција за автоматско исклучување
The device features an auto-off function to conserve battery life. If no operation is performed for approximately 15 minutes, the device will automatically power off. Press the Моќ копче за повторно вклучување.
7. Одржување
- Cleaning Optical Connectors: Always ensure optical connectors are clean before use. Use lint-free wipes and appropriate optical cleaning solutions. Dirty connectors can lead to inaccurate measurements and damage to the device or fiber.
- Замена на батерија: When the battery indicator on the display shows low power, replace all three 1.5V AAA batteries promptly.
- Складирање: When not in use, store the device in a dry, cool place, away from direct sunlight and extreme temperatures. Always replace the protective caps on the optical ports to prevent dust and damage.
- Надворешно чистење: Исчистете ја надворешноста на уредот со мека, гamp крпа. Не користете абразивни средства за чистење или растворувачи.
8 Смена на проблеми
- Уредот не се вклучува:
- Проверете дали батериите се правилно инсталирани со соодветен поларитет.
- Заменете ги со свежи батерии.
- Inaccurate power meter readings:
- Ensure optical connectors are clean.
- Verify the selected wavelength on the power meter matches the light source wavelength.
- Check if the fiber under test is properly connected and not damaged.
- No light output from light source:
- Ensure the device is powered on and in light source mode.
- Проверете го нивото на батеријата.
- Verify the fiber is properly connected to the output port.
- Auto-off activates too quickly:
- The auto-off is fixed at 15 minutes of inactivity. This is normal operation.
9. Спецификации
| Карактеристика | Спецификација |
|---|---|
| Optical Power Meter Module | |
| Detector Measurement Range | -50 ~ +26 dBm |
| Калибрирани бранови должини | 850, 1300, 1310, 1490, 1550, 1625 nm |
| Резолуција | 0.01 dBm |
| Identification Frequency Range | 10 Hz ~ 60 KHz |
| Оптички конектор | SC, ST, LC (optional) |
| Optical Light Source Module | |
| Emitter Wavelengths | 1310 / 1550 nm (other wavelengths customizable) |
| Излезна моќност | -7 dBm |
| Стабилност на излезот | 0.05 dB / 15 mins; 0.1 dB / 8 hours |
| Modulation Frequencies | 270 Hz, 1 KHz, 2 KHz |
| Оптички конектор | FC (SC, ST, LC optional) |
| Општи спецификации | |
| Напојување | 3 x 1.5V AAA батерии |
| Време на автоматско исклучување | 15 минути (прибл.) |
| Работна температура | -10°C ~ +60°C |
| Димензии (Д x Ш x В) | 160 x 75 x 32 mm |
| Тежина | 400 g (unit only) / 150 g (item weight from specs) |
| Минимално работење Voltage | 1.5 волти |
| Максимален оперативен волуменtage | 5 волти |
| Спецификација исполнет | UL 61010-1, IEC 61010-2-030 |
| Производител | Shenzhen Noyafa Electronic |
10. Гаранција и поддршка
For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or contact your authorized Noyafa dealer or the manufacturer directly. Keep your purchase receipt as proof of purchase.





