MANUAL OPERATION-POWER METER
KI23400/KI27400 UM-2
-
42 -
Power Meter Manual Operation
To operate the Optical Power Meter, press [Meter]. The meter will
default to the last used settings.
•
‘HI’ or ‘LO’ indicate
that the input power level is out of range.
•
Absolute power level can be measured in dBm, or linear
mode. Optical loss or attenuation is measured in dB.
•
To toggle logarithmic / linear / relative display mode, press
button below [METER MODE]. Measured optical power will
be displayed in dBm / dB or nW, µW, mW.
•
To scroll calibration
λ
, press
-
or
+
. The display shows the
active calibration
λ
in nm. Commonly used
λ
are grouped
together.
•
To set reference: In relative mode, hold down button below
[SET REF] for 3 seconds until the instrument beeps finish.
Then the main display will go to approximately 0 dB, and the
reference value will be displayed on the left-hand side of the
display.
•
To stop / start display update, press button below [HOLD].
The symbol will flash when the display is on hold.
•
To store to memory, press triangular button
above “STORE”
Please refer to “Recording, Storing, Recalling
Readings and
Clearing Memory
” section
for detailed memory operation.
•
To display, hide or reset minimum and maximum recorded
power for selected
λ
, press
–
and
+
simultaneously. This is
a handy simple data logging function for field use.
•
Press button below [HOME] to return to Main menu
On rare occasions where the meter is unable to display a
power level and disp
lays a tone instead, refer to “Slow
M
ode”
section in this manual, to set the meter to averaging mode.
