♦ Expert OTDR:Professional measurement,curve/list/map are displayed simultaneously
♦ Auto OTDR: no complex settings,one key test
♦ OPM supports CW/270/330/1k/2kHz frequency identification
♦ VFL and LS can run in the background, multi task can be operated simultaneously
♦ LS supports CW/ modulation mode output with adjustable output power
♦ RJ45 cable tracker of digital radar,stronger anti-jamming ability
♦ Auto OTDR, expert OTDR, event map, OPM, LS, VFL, RJ45 cable tracking, RJ45 cable sequence,RJ45 cable length, end face detection, flashlight optical loss test
♦ RJ45 cable sequence/cable length test, up to 300m
♦ One click screen capture, easy to save the interface

NK4000 series OTDR adopts 4.3-inch capacitive touch screen. It integrates 12 functions, such as auto OTDR, expert OTDR, event map, OPM, RJ45 cable tracker, and “computer level” file management to meet various test requirements in different occasions. OTDR has a maximum dynamic range of 26dB, 8G memory, and can store more than 200,000 curves; it is equipped with 4000mAh highdensity polymer lithium battery, intelligent power saving management, measuring time of more than 8 hours, and supporting power supply and charging of the power bank.
NK4000 series are used to measure the length, loss, connection quality and other parameters of optical fiber. It is widely used in FTTX, secondary backbone network engineering construction, maintenance and emergency repair test, and production measurement of optical fiber and cable.

TypeG.652 SM
Dynamic Range26dB/24dB
Event Blind Zone2.5m
ATT Blind Zone8m
Test Range500m/1km/2km/4km/8km/16km/32km/64km/100m
Pulse Width3ns/5ns/10ns/20ns/30ns/50ns/80ns/160ns/320ns/500ns/800ns/1μs/2μs/3μs/5μs/8μs/10μs
Ranging Accuracy±(1m+Sample interval+0.005%×Test distance)
Sample Points16k~128k
Sample Resolution0.05m~8m
Loss Resolution0.001dB
Loss Threshold0.20dB
Range Resolution0.001m
Refractive Index1.00000~2.00000
Reflection Accuracy±3dB
File FormatSOR Standard File Format
Loss Analysis4-point method /5-point method
Laser Safety LevelClass Ⅱ
ConnectorFC/UPC(Interchangeable SC、ST)