8230E Optical Power Meter Operation Manual
5.3 ANALOG OUT
5-4
5.3
ANALOG OUT
A voltage, which is proportional to the measured photo-electronic current, is output from ANALOG OUT of
this instrument.
For the 823x series sensors, because the sensor sensitivity calibration, wavelength sensitivity correction, zero
cancel, CF correction, and dBm/dBr calculation are performed on the CPU, these are not applied to a voltage
output from ANALOG OUT.
Check the relationship between the display and the voltage output from ANALOG OUT under the measure-
ment conditions to be used.
Table 5-1 shows the relationship between the voltage output from ANALOG OUT and the full scale of the
current range.
The full scale (2 V) of ANALOG OUT is not equal to the display and the full scale of the current range.
For the 821x series sensors, the operation is the same as the operation for the TQ8210.
The sensor sensitivity calibration is applied to ANALOG OUT and approximately 2 V is output for the full
scale of the range at the calibration wavelength.
Because wavelength sensitivity correction, zero cancel, and dBm/dBr calculation are performed on the CPU,
these are not applied to a voltage output from ANALOG OUT.
Table 5-1 Relationship between the Current Range and the Output Voltage at Analog Output
Current range
Full-scale
20 nA to 20 mA
+2 V
50 mA
+500 mV
