Emission Adjustment - Panasonic HL-C2 Series User Manual

Chapter 4 Explanation of Functions

■ Emission Adjustment

This function sets an appropriate emitted light intensity to a measurement object.
AUTO is set as a default. "AUTO" automatically sets optimum emitted light
intensity to meet the reflection light amount of the measurement target.
When the function is set to "AUTO", the current light intensity is displayed in percent
figures.
In case that "Emission Adjustment" is set to "Fixed", set the value to approximately
600 to 700 while checking "Received Light Intensity Waveform Display" or
"Received Light Intensity at Peak" of compact programmable display and Intelligent
Monitor AiM.
Normally set the emission adjustment function to AUTO for use.
To measure the objects where light reflection may vary excessively, such as on an
object having many holes or a connector pin in which light-shielding status and
light-passing status may be repeated, alarm status may continue due to delayed
feedback. In this case, for increasing the measurement speed, fix the appropriate
4
light intensity to the measurement point.
The laser light reflection intensity excessively varies depending on the mounting
condition of the sensor head, the surface condition or refractive index of the
measurement object. If the settings of "Emission Adjustment" is not sufficient,
change the "Sampling Cycle" for acquiring appropriate received light intensity.
When the measurement is executed with the sensor head mounted in specular
reflection and the refractive index of the measurement object is high, the setting
of the emission adjustment is not sufficient due to the excessive light reflection
intensity. In this case, install ND filter unit (optional).
● How to use
1
2
Display the "Emission Adjustment" screen.
Setting screen of sensor head A
Set the emission intensity by
The below shows the light intensity of 31
levels of the setting value.
Set.value
0.04% fixed
0.05% fixed
0.06% fixed
59.2% fixed
76.9% fixed
100% fixed
key.
Emitted light intensity
AUTO
AUTO
Low
:
:
High
4-10
Setting screen of sensor head B