NK303C Optical Power Meter

Category Optical Power Meter

The NK303C Insertion & Return Loss Tester combines OPM, LS, VFL, RL, and IL functions, delivering precise fiber loss measurement in a compact portable design.

The NK303C Insertion & Return Loss Tester is a multifunction optical testing instrument designed for accurate signal and loss measurement. Integrating Optical Power Meter, Laser Source, Visual Fault Locator, Return Loss Tester, and Insertion Loss Tester functions, it ensures reliable fiber performance evaluation. With rechargeable lithium battery, automatic calibration, and multi-wavelength support, it is ideal for fiber construction, maintenance, and laboratory applications.

Product Features

Support simultaneous display of mW, dBm, and dB
Integrated LS / OPM / VFL / RL / IL functions
Automatic wave recognition (optional, special LS required)
Red light all-in-one machine integration
Lithium battery with portable charging support
Support FC / SC / ST interchangeable interfaces
Support automatic frequency identification
Support user self-calibration
4-level backlight dimming adjustment
Working hours above 12 hours

Specifications

OPM

Wavelength Range
800nm–1700nm

Connector
Universal FC / SC / ST

Detector Type
InGaAs

Power Range
-70dBm to +6dBm
-50dBm to +26dBm

Uncertainty
±5%

Calibration Wavelength
850nm / 980nm / 1300nm / 1310nm / 1490nm / 1550nm / 1625nm / 1650nm

Display Resolution
Linear display: 0.1%
Logarithmic display: 0.01dBm

Frequency Detection
270Hz / 330Hz / 1000Hz / 2000Hz

Storage
1000 traces

Return Loss Tester

Wavelength
1310nm ±20nm / 1550nm ±20nm

Power Range
0 to -70dB

Accuracy
±0.5dB

Resolution
0.01dB

Connector
FC / APC

Insertion Loss Tester

Wavelength
1310nm ±20nm / 1550nm ±20nm

Power Range
0 to -70dB

Accuracy
±0.3dB

Resolution
0.01dB

Connector
FC / APC

LS

Wavelength
1310nm ±20nm / 1550nm ±20nm

Laser Type
FP-LD

Output Power
≤ -5dBm

Stability
±0.05dB / 30min

Mode
CW / 270Hz / 330Hz / 1000Hz / 2000Hz

Power Regulation
0–6dB, 1dB Step

Connector
FC / UPC

VFL

Wavelength
650nm ±30nm

Output Power
≥10mW

Mode
CW / 1Hz / 2Hz

Connector
FC / UPC

Others

Power Supply
2400mAh Rechargeable Lithium Battery

Automatic Shutdown Time
10 minutes

Continuous Working Time
≥12h

Operating Temperature
-10°C to +50°C

Storage Temperature
-40°C to +70°C

Relative Humidity
0–95% Non-Condensing

Size
186mm × 100mm × 50mm

Weight
240g

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