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Specification

Optical loss measurement tool :

- Simple and intuitive operation
Large LCD shows measurement results and memory data at a glance
Ergonomic key layout
- Memory function
Store up to 1000 data for each wavelength : 850 / 1310 / 1550 nm
- Support for effective data processing
USB interface and supplied application software allows easy communication with a computer

Basic specifications :

Measurement functions : Optical power measurement (dBm)
Measure absolute value of input optical power
Optical loss measurement (dB)
Automatically compare measured power with previously input
reference value to calculate and display loss
Calibration wavelength : 850 nm, 1310 nm, 1550 nm
Range : -60 dBm to +9 dBm (auto range)
Accuracy : ±0.22 dB (±5 %) at-10 dBm
Resolution : 0.01 dBm (optical power), 0.01 dB (optical loss)
Rated max. : +10 dBm
Connector : FC, SC (using optional connector adapter)
Fiber type : Single mode, multi mode (core dia. 62.5 µm max. NA: 0.275 max.)
Light receiver : InGaAs (dia. 1 mm)
Display update rate : Approx. 3 times/s (approx. 350 ms)
Memory : Max. 1000 data per wavelength
Interface : USB (Ver. 1.1)
Dedicated PC application software allows transfer of
measurement data from the 3661-20 memory to a computer
Functions : Auto power save (after about 10minutes of inactivity; defeatable)
Settings backup (settings are automatically stored at power-off)
Battery check (symbol appears when voltage drops below approx. 4 V)
Power supply : LR6(AA) alkaline battery × 4, 0.5 VA
Operating time : Approx. 40 hours (continuous use)
Dimensions and mass : 85 mm(3.35)W × 192 mm(7.56)H (including 36 mm cover) × 35 mm(1.38)D,
300g(10.6 oz) (without batteries)
Accessories : CARRYING CASE 3853 (1), Strap(1)