![YOKOGAWA 735201 Скачать руководство пользователя страница 20](http://html.mh-extra.com/html/yokogawa/735201/735201_user-manual_911162020.webp)
IM 735201-01E
1-6
1.2 List of Functions
Function
Overview/Description
Optical power level
measurement
Displays the optical power level of the light received by the
sensor head in the display.
Range setting
Sets the range automatically according to the level of received
light. You can specify a fixed range. The setting range is -30 dBm
to +20 dBm
Auto zero set
Automatically sets zero when the power is turned ON.
The user need not set zero manually.
Wavelength sensitivity
correction
The wavelength sensitivity can be corrected in the range from
400 to 850 nm (in 1 nm steps). Accurate measurements can be
obtained by matching with the wavelength of the light source
being measured.
Relative value
measurement
You can set a reference value and display the change in level
relative to the reference value (units: dB).
Absolute value
measurement
unit switching
You can switch the displayed units between dBm and W.
When W is selected, mW, uW, or nW is automatically selected
and displayed according to the optical power.
You can also fix the displayed units at mW.
Averaging
Averages measured values internally and displays them.
The number of measured data values averaged is fixed at 20.
A moving average is taken every measurement interval.
1
Max hold
Displays the maximum value during measurement.
NA (aperature)
correction
When measuring at high NA, you can correct error due to
angular incidence characteristics of the sensor. The setting range
is 0.500 to 2,000 (in 0.001 steps). However, the correction value
must be selected from the NA correction coefficient table in
appendix 1.
Sensor head
S/N display
Displays the serial number of the sensor head connected to the
instrument.
User calibration
Adds setting values displayed in normal measurement mode
and displays them. The available setting range is -10 dB to +10
dB.
Backlight
Turning the backlight ON allows you to see the display in the
dark.