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Data hold
While testing, click “Hold” to data hold, the data will not change. It’s convenient to read. Press again to
quit.
Relative power value (optical link loss) measurement
While testing, set the wavelength for measurement. Click “relative” (
difference) to test, the tester Auto save
current fiber power value as the base reference value. Input another optical fiber to be measured, the
displayed new measurement and relative value is red color. Press it again to quit.