| Network |
None, 4G, 3G |
| Type |
FTTH Handheld MINI OTDR |
| Use |
FTTH |
| Product Name |
NK4000 1310 nm/1550 nm 26/24DB VFL Fiber Optic Mini OTDR Tester |
| Wavelength |
1310 nm/1550 nm ± 20nm |
| Dynamic Range |
26 dB/24 dB |
| Event Blind Zone |
8.20 ft (2.5 m) |
| ATT Blind Zone |
 26.25 ft (8 m) |
| Test Range |
0.31 mi to 62.13 mi (0.50 km to 100 km) |
| Loss Accuracy |
±0.2dB/dB |
| Fiber Type |
G.652 SM Fiber |
| Pulse Width |
3ns to 20us |
| Ranging Accuracy |
±3.28 ft (1 m) + Sampling Interval + 0.005% + Test Distance) |
| Sampling Points |
16 k to 128 k |
| Sampling Resolution |
0.164 ft to 26.25 ft (0.05 m to 8 m) |
| Reflection Accuracy |
±3 dB |
| Data Storage |
Internal: ≥600; External: TF Card |
| Laser Safety Level |
Class II |
| File Format |
SOR Standard File Format |
| Connector |
FC/UPC (Interchangeable SC, ST) |
| Wave Range |
800 nm to 1700 nm |
| Interface Type |
Universal Joint FC/SC/ST |
| Test Range (Optical Power Meter) |
-50 dBm to +26 dBm |
| Uncertainty |
±5% |
| Frequency Identification |
CW/270/330/1k/2kHz |
| Calibration Wavelength |
850/980/1300/1310/1490/1550/1625/1650nm |
| Output Power (Optical Power Meter) |
≥-5 dBm |
| Modulation Frequency |
270/330/1k/2kHz |
| Stability |
CW, ±0.5dB/15min (Test after 15 mins of preheating) |
| Connector (VFL) |
FC/SC/ST |
| Work Wavelength (VFL) |
650 nm ± 20 nm |
| Output Power (VFL) |
≥10mW |
| Mode (VFL) |
CW/1Hz/2Hz |
| Test Range (VFL) |
300 m |
| Display |
4.3 in Color LCD |
| Data Interface |
Micro USB |
| External Storage |
TF Card |
| Power Supply |
Polymer Li-battery: 3.7 V, 4000mAh; Power Adapter: 5VDC, 2A |
| Battery Life |
Standby > 20h; Measuring Time > 12h |
| Operating Temperature |
14 °F to 122 °F (-10 ℃ to +50 ℃) |
| Storage Temperature |
-40 °F to 158 °F (-40 ℃ to +70 ℃) |
| Relative Humidity |
0% to 95% non-condensing |
| Weight |
≤12.35 Oz (350 g) |
| Dimension |
6.81 in × 3.23 in × 1.46 in (17.3 cm × 8.2 cm × 3.7 cm) |
