Optical Variable Attenuator

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Optical Variable Attenuator (Digital) EVA50

Rugged and compact design, EVA50 is designed to help

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Most compact and rugged portable attenuator on the market

Three wavelengths: 1310nm / 1490nm / 1550nm

Different attenuator range, 40dB, 60dB or 80dB

Can save current value as reference

Can save 10 tracks attenuation value

Memorize the value after instruments shut down

Energy save mode

One-year warranty and Three-year recommended calibration interval

Model

EVA50-40

EVA50-60

EVA50-80

Attenuating Range

40 dB (SM)

60 dB (SM)

80 dB (SM)

Calibrated Wavelengths

1310nm / 1490nm / 1550nm

Fiber Mode

SM

Attenuating Mode

Digital

Display Resolving Power

0.1dB

Display

LCD, 128*64

Max Input Power

+ 28 dBm

Return Loss* 

> 40 dB

Insertion Loss*

< 2.5 dB

Connector

FC/PC (or customize)

Uncertainty

± 0.5 dB

Repeatability*

± 0.2 dB

RS-232

Optional

Auto Power Off No operation in 10 minutes (can be canceled), Low battery energy
Battery Charge
Yes
Operate Time Above 20 hours
Power Supply 3 * AA batteries or AC/DC adapter

* at 20±3℃, CW, with FC/PC connector,1550nm

Size(H*W*D)       

190mm * 90mm * 40mm

Weight 

About 450g

Storage Temperature 

-20 -- +60°C, < 90%RH

Operating Temperature 

-10 -- +50°C, < 90%RH

EVA50-XX

Model

EVA50-40 = 40dB

EVA50-60 = 60dB

EVA50-80 = 80dB

Standard
  • Carrying bag  


  • Calibration certificate


  • Manual

  • Packing box

Optional
  • AC/DC adapter

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