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⚫ Telecom Maintenance
⚫ CATV Maintenance
⚫ Comprehensive cable construction system
⚫ Optical instruments research and development
⚫ Optical communication education and lab testing
⚫ And other optical project
➢ Stepwise attenuating by circumgyrated dial: attenuating step 0.05dB
➢ Provide with the function of displaying dB and dBm attenuating value
➢ 10 minutes Auto-off function can be activated and deactivated with keypad operation.
➢ After the instrument turned off, the system will record the attenuating value and the step, it will automatically restore to the previous state when restart the instruments.
➢ Portable, rugged, lightweight.
➢ Easy to use.
FV-76903 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, therefore, FV-76903 can be used in the digital system of communication devices (such as: PHD, SDH) and in the system of adopting analog modulation (CATV)
Specification:
Type | FV-76903 |
Attenuating Wavelength Range | 1260~1650nm |
Fiber Model | 9/125um SM |
Optical Connector | FC/PC |
Calibrated wavelengths | 1310/1490/1550/1625nm |
Measurement Range | 2~60 dB |
Resolution | 0.05 dB |
Minimize Insertion Loss | ＜2.0 dB |
Linearity | ±0.5 dB |
Repeating | ±0.2 dB |
Attenuating Accuracy | ±0.8 dB |
Return Loss at Input/ Output | ＞35dB (Typical Value 40 dB) |
Max input | ＋20 dBm |
Displaying Type | Lattice 128*64 black and white, white back ground light |
Rechargeable Batteries | 8.4V |
Power Supply Adaptor | 8.4V |
Operation Temperature | 0~40℃ |
Operation Time | 40 hours |
Storage Temperature | -10~60℃ |
Humidity | 0~85% (non- condensation) |
Dimension | 180X90X36.5 |
Weight | 427g |
