OptoTest OP940

The OP940 is an insertion loss (IL) and return loss (RL) meter designed for speed, accuracy and simplicity. Its full test functionality in a compact size makes the OP940 an ideal test system at every stage of fiber optic cable production and installation.

Fast and accurate IL/RL measurement
Robust and intuitive front panel
Minimized production downtime
Wide dynamic range for RL measurements
Customizable

Fast and accurate insertion loss (IL) and return loss (RL) measurement

Robust and intuitive front panel

Operating the device via the OP940 front panel is simple and easy to navigate without any loss of functionality. Test IL and RL simultaneously with real-time result updates. Adjust the RL reference position and measure both front and back connectors. Set pass/fail criteria and enable the color display to quickly verify a batch of cables. If you are unsure what to do, help menus are available on every screen to guide you through the various functions and options.

Identify and fix problems with minimal downtime

Minimize production downtime by identifying and resolving problems directly on the front panel. Use the optical reflection trace to find reflections along the optical path caused by dirt or misaligned connectors. If there is a reflection on the front panel, you can remove it to access the connector and perform maintenance without exposing the rest of the device to the elements.

Wide dynamic range for RL measurements

Using a wide dynamic range (SM, FTTX: -10dB to -80dB | MM: -10dB to -58dB) for RL measurements, the OP940 can adjust the attenuation in the reference configuration, delivering the most accurate RL results in the industry.

Fastest IL/RL measurement

Using the OP940, you can test a single channel, dual wavelength, IL and RL in less than 4 seconds.

Customizable

The OP940 is available with SM, MM and FTTX wavelengths as well as various core sizes and detector options to meet your needs.

Optical power
Measurement range	+10dBm – (- 80dBm)
Wavelength range	830nm - 1700nm
Calibration	850/1310/1490/1550/1625 nm
Resolution	0.01dBm (absolute) 0.001dB (relative)
Accuracy (relative)	0.05dB, 0.02dB (loss <10dB)
Source
Wavelength	1310nm ± 10nm 1490nm ± 10nm 1550nm ± 10nm 1625nm ± 10nm
Output power	0dBm
Source stability	±0.02dB (1hr) ±0.05dB (12hr)
Return loss
Measurement range	10dB .. 80dB
Accuracy (absolute)	±1dB (10dB - 65dB) ± 2dB (>65dB) ± 5dB (>72dB)
Resolution	0.1dB
Range	2400m