Introduction – Optical Multi-meter (GAO2498A)
GAO2498A optical multi-meter is easy to use and designed for fieldwork. The meter can be used as an optical power meter, stabilized light source or a loss test measurement system. Its small size and light weight allows you to use it anywhere, and you can select the optimal power source for your needs -- AC adapter, rechargeable Ni-Cd battery or dry cells.
GAO’s optical multi-meter covers 0.85 µm, 1.30 µm, 1.31 µm, and 1.55 µm for optical loss measurement. It provides CW mode light signals; therefore, it is possible to measure optical loss over a wide dynamic range. This meter is most suitable for single mode fiber measurement and provides a wavelength calibration function at 4 wavelengths.
Key Features – Optical Multi-meter (GAO2498A)
- Measures CW light
- Provides calibration function at 4 wavelengths
- Operates in 3 modes: AC, rechargeable Ni-Cd battery, and dry cells
- Measures optical loss over a wide dynamic range
Applications – Optical Multi-meter (GAO2498A)
Optical fiber loss measurement
When measuring optical fibers, it is convenient to provide one GAO2498A each at both the near and far ends.
Optical parts performance check
A light source and optical power meter are provided, so an optical parts performance check is possible at low cost
Technical Specifications – Optical Multi-meter (GAO2498A)
Unit display | W, dBm, dB (REL) selectable, 4 digits |
Measurement resolution | W display: 0.1 to 1%, dBm/dB (REL) display: 0.01/0.1 dB. |
Battery check | Upside part shows "LB" when battery voltage goes down. |
Averaging | On and off selectable |
Range hold | Range can be specified and set to be on and off. |
Wavelength sensitivity characteristics compensation | Deviation of optical power sensor is compensated automatically. |
Power | AC-DC adapter, rechargeable Ni-Cd battery (8.4V) or dry cells (9V). |
Temperature range | 0℃ to 45℃ |
Dimensions and weight | 86 x 190 x 35 (W x H x L) mm, £ 500g |
Input | FC/PC |
Light source | Wavelength (nm) | 1300±30 (LED) |
Output level: (dBm) | 3 -30(single mode fiber) |
Stability | £ 0.02 dB / 5min |
Optical sensors | Calibration wavelengths (nm) | 850/1300/1310/1550 |
Measurement range (dBm) | +3 to -70 or +20 to -50 |
Measurement accuracy | ± 5%（-10dBm，1300nm） |
