Blackbox FOPM-100, Руководство пользователя

Страница: 13 / 24

Page 13 724-746-5500 | blackbox.com
Chapter 4: Using the Optical Power Meter, Basic
4. Using the Optical Power Meter, Basic
4.1 Display and Controls
1
2
3
4
5
Figure 4-1. Keypad functions.
4.1.1 Keypad
Use the keypad to access a wide range of power meter functions. See Table 4-1.
Table 4-1. Keypad functions.
Number Key Function
1 Switches tester on/off. Press and hold for more than two
seconds while turning on to disable the auto-off feature.
2 Press to set the wavelength. Select from six possible
wavelengths: 850, 1300, 1310, 1490, 1550, and 1625 nm.
3 Press to select measurement mode. Three modes are
available: dBm for the power value, dB for the relative value,
and mw for the logarithmic value.
4 Press for less than two seconds to display the present test
wavelength’s reference level. Press and hold the key for more
than two seconds to set a new test wavelength reference level.
5 Press to switch backlighting on/off.