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Optical reflectometer Yokogawa AQ7270

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Array ( [8] => stdClass Object ( [mod] => 1000 [base] => 100 [unit] => м ) )

Optical reflectometer Yokogawa AQ7270


New OTDR-reflectometer Yokogawa AQ7270 proves than perfection has no boundaries! It has practically all the advantages of the previous model (Yokogawa AQ7260), but even more compact, lightweight and quick in use. AQ7270 is characterized by a record-breaking small dead zone of detection as of today – 0.8 meter. Within a few seconds the reflectometer is switched on and operation can be started, and the inline function of high-speed automatic testing enables the first simplified test to be carried out by pushing just one button. OTDR-reflectometer Yokogawa AQ7270 is designed to facilitate work under conditions of lack of time and free space, when density of information system and price for idle time are very high.


Advantages of the model

  • The shortest in the world today dead zone of detection - 0.8 m!
  • Ability to "download" and be ready for the first measurement within less than 10 seconds
  • Built-in function of high-speed automatic testing, high speed of all measurements
  • High precision of distance measurements and readout resolution (up to 1 cm)
  • Dynamic range up to 40 dB, length of the measured routes up to 400 km
  • Large screen which can be comfortable viewed from any angle
  • Universal Interface USB (types A and B) and Ethernet port, which allow connection of your computer, external storage devices, printer, etc.
  • Optional built-in printer for fast printing of reflectograms
  • Mode of the stabilized radiation source
  • Built-in auxiliary fiber bundle for testing of short lines
  • NiMH battery, designed for continuous operation of the device during 6 hours, with recharge time of less than 5 hours
  • Portable design: size of about 287 mm x 197 mm x 85 mm (WxHxD), weight only 2.8 kg
  • Ability to work at temperatures from 0 to 45 °C and relative humidity to 95%






8.4-inch TFT LCD color display, 640х480 points

Display horizontal axis

View range, km

0.5, 1, 2, 5, 10, 20, 50, 100, 200, 300, 400

Measurement of distances

Distance between any two points are displayed at reflectogram as an eight-unit number

Distance measurement error

1 m or ‘distance’ *2*10-5 (the greater one)

Readout resolution, cm

1 (minimum)

Sampling density, m

0.05, 0.1, 0.2, 0.5, 1, 2, 4, 8, 16, 32

Number of points in reflectogram

Up to 50000 points

Range of group-refractive index

1.30000 … 1.79999 with a step 0.00001

Display vertical axis

Attenuation scale, dB/div.

0.2; 0.5; 1; 2; 5; 7.5

Readout resolution, dB

0.001 (minimum)

Loss measurement

Signal level is displayed a five-unit number in step 0.001 dB. Functions of loss measurement at fiber section, long attenuation, loss at local inhomogeneity

Return loss measurement

Functions of local inhomogeneity reflectometry, and measurement of total reflection factor at a line section

Loss measurement error, dB/dB


General characteristics


Laser of Class 1 М (standard IEC60825-1:2001)

Optical pulse length

3 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 mcs, 2 mcs, 5 mcs, 10 mcs, 20 mcs

Optical fiber type

SM 10/125 (ITU-T G.652)

Optical connector

Adapter SC/FC


Not less than 1000 “scan images”. Measurement results and settings can be saved at an auxiliary memory connected via interface USB 1.1.


USB 1.1 type А – for external memory and printer
USB 1.1 type B – for PC connection

Ethernet – supports FTP protocol

Network adapter

100-240 V, 50/60 Hz, up to 70 W (when printer in use or battery charging);


Type: NiMH. Operation without recharging: about 6 hours (30 sec. of measurement every 10 minutes, in energy-saving mode). Charging duration: less than 5 hours.

Operation temperature

from 0 to +45°С (from 0 to +35°С at battery charging)

Storage temperature

from -20 to +60°С

Relative humidity

Not more than 85% (without condensation)

Dimensions and weight

about 287 mm х 197 mm х 85 mm (WхHхD), about 2.8 kg


Battery, strap, network adapter, operating manual

Optical modules for Yokogawa AQ7270 (factory-set):




Wavelength, nm



Dynamic range (S/N=1), dB



Event dead zone, m



Attenuation dead zone, m



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