Releasing The Value On The Display; Measuring A Reference; Entering Or Editing The Reference - HP E5970A User Manual

Optical power meter
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1.
Press
m.
While the value is being held, the indicator
HCiL
is shown, alternating with the
wavelength, in the middle at the bottom of the display.
-
Releasing the Value on the Display. If a power value is being held on the
display, you can release it by pressing
IHold)
a second time.
Measuring
a
Reference
Note
A separate reference is stored for each calibrated wavelength.
Make sure the correct wavelength has been selected before you
measure.
To measure a reference:
1.
Connect the power meter to the point at which the reference is to be
measured.
2. Press
[ - I .
If you cannot measure a reference, check the following
-
Is
REF
shown at the top left of the display?
If it is,
1.
Press @$KT).
2.
Measure the reference as described above.
w
Is the wavelength shown in the middle at the bottom of the display
alternating with
HIIIL?
If it is,
1. Press
lHold).
2.
Measure the reference as described above.
Entering or Editing the Reference
Note
A separate reference is stored for each calibrated wavelength.
Make sure the correct wavelength has been selected before you
edit.
-
To enter or edit a reference value:
1. Press
(dB/Ref)
repeatedly, until
REF
is shown at the top left of the display.
Making
Measurements
1-7

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