Exfo EPM-500 Power Meter Uživatelský manuál stáhnout pdf (Strana 24)

Using a Light Source (ELS-500 and EOT-500) or VFL 19

To use the actual source output power as reference (EOT-500 only):

1. Connect a fiber between the source and power meter of same unit.

2. Activate the source at the desired wavelength.

3. Match the source and power meter wavelengths:

³ If the source emits an auto-wavelength signal

or is in auto-switching mode (see

Automatically Detecting Wavelength on

page 14 and Using Auto-Switching Mode on

page 17), the power meter automatically

matches the source wavelength.

³ Press to switch between calibrated wavelengths.

4. From normal operating mode, hold down and . The unit displays PREF

for a few seconds while saving the value, then returns to normal mode.

To send the source power value:

1. Activate the source.

2. Change the modulation signal to AUTO or auto-switching.

If you use auto-switching mode, the power value of each wavelength will

automatically be sent.

3. Hold down and to send the power value with an auto-wavelength

signal. The unit displays Send for a few seconds, then returns to normal mode.

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Exfo EPM-500 Power Meter Uživatelský manuál Strana 24