日本Photom 生产的一款MODEL 208光功率。
同类产品：Photom 351 手持LED光源，Photom 385H 手持式LED和LD光源，Photom 393H 可变功率输出LD光源，Photom 392H 可变功率输出LD光源，Photom 218 光功率计，Photom 208 光功率计，Photom 215 光功率计，Photom 260 光功率计，Photom 205A 光功率计。
| Model | 208 (for short wavelength) | 218 (for long wavelength) |
|
Calibrated Wavelengths (nm) |
660, 780, 820, 850 | 820, 850, 1310, 1550 |
|
Measuring Range (dBm) |
-60 dBm to +10 dBm (1nW to 10mW) |
-60 dBm to + 5 dBm (1nW to 3mW) |
| Accuracy |
±0.20 dB(±5 %) at 850 nm, -20 dBm |
±0.20 dB(±5 %) at 1310 nm, -20 dBm |
| Analog output | 0 to 3 V | |
| Interface | RS-232C | |
| Sensitivity |
Si photodiode (φ8 mm) |
InGaAs photodiode (φ1 mm ) |
| Resolution | 0.01 dB | |
| Fiber type | POF, GI(850 nm) | GI, SM |
| Functions |
W/dBm(REL), data hold, auto-zeroing, average, blank data save, data-printout (when operated by D-SUB9Pin) |
|
| Display | 4 1/2 digit LCD(30000 counts) | |
| Power Supply | UM-3 battery 4 pcs. or AC line(AC adapter optional) | |
| Battery Life | Approx. 40hours | |
| Temperature / Humidity | 0~40°C,80%RH or less(non-condensing) | |
| Dimension / Weight |
90(W)×160(H)×40(D)mm, Approx.430g (including batteries) |
|
