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7 L
T
O
OSS
EST
PERATION
R
EFERENCING
NOTE:
66
To switch between dB and Pass/Fail:
From the measurement display press the
J
or [Pass/Fail].
Referencing
The actual measured power level relative to a reference value is
displayed in relative power display mode. The reference value
can be set by defining the actual power level as the reference
value or can be edited manually.
To set the reference level in Loss Test mode (valid for all
reference methods):
1.
Decide for one of the Reference methods (see
Remote Referencing" on page
source output directly to the Powermeter input with one, two
or three jumper cable/s.
2.
Switch the laser on (see
page
84).
[A]
3.
Press the
key.
4.
Tap the
[Referencing]
The actual power level is set as the new reference level. The
reference level is displayed underneath the wavelength.
Reference power level display mode is activated.
The reference level is stored for each wavelength and is saved
even when the power is off.
In the Loss Test mode, the light source (two to four lasers) and
the receiver of the OLTS-85 are activated. The wavelengths of the
powermeter instrument are locked to the wavelengths of the
source and can be selected independently.
[A]
116) and connect the laser
"Switching on/off the laser" on
button to store the reference level.
key and tap
[dB]
"Loopback and
OLTS-85/OLTS-85P
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