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Operation
● F3UV-A30/A03
Sensitivity adjustment method
During initial setup or when UV light source is replaced, adjust
the analog output to 4 to 5 V as follows.
(Sensitivity adjustment)
After installing the sensor, adjust the sensitivity with the sen-
sitivity control.
When the analog output is within the range of 4 to 5 V, the or-
ange operation indicator lamp illuminates. Once it illuminates,
fine adjust the output to the required voltage.
(If the UV light intensity is too high)
If the analog output is 5.0 V or higher when the sensitivity con-
trol is set to MIN (all the way to the left), the UV light intensity
exceeds the sensor specification. Either use the optional F39-
HU1 Exposure Cover, or move the sensor away from the UV
lamp.
(If the UV light intensity is too low)
If the analog output is 5.0 V or lower when the sensitivity con-
trol is set to MAX (all the way to the right), the UV light inten-
sity is lower than the sensor specification. Move the sensor
closer to the UV lamp.
● F3UV-XW11/XW41
Basic Operating Procedures
(1) Install the Amplifier Unit.
(2) Connect the Fiber Unit to the Amplifier Unit.
(3) Turn ON the power supply.
(4) Select an operating mode with the operation mode switch.
(Light intensity monitor mode or light intensity integral
mode)
(5) When using the analog output, select current or voltage
output with the output selection switch.
(6) Set the processing mode switch to TEACH and perform
the teaching operation.
• Light Intensity Monitor Mode
Perform the zero-point setting when the indicator is not
lit and make the sensitivity setting when the indicator is
lit. (Perform the sensitivity setting after the temperature
has stabilized.)
• Light Intensity Integral Mode
Use the start setting at the start of illumination and the
stop setting when completed.
Teaching can be performed by pressing the buttons or
with codes.
(7) When changing the threshold value in light intensity mon-
itor mode, set the processing mode switch to ADJ and ad-
just the threshold value. The judgement output will go ON
if the light intensity is below the threshold value. The
threshold value is set to 50 at the factory.
(8) Set the processing mode switch to RUN to start measure-
ment. In light intensity integral mode, start integration with
the Reset input.
F3UV
For detailed operation procedures, see the product manual.
● F3UV-XA
Sensitivity adjustment method
During initial setup or when UV light source is replaced, adjust
the control output to any value between 4 and 5 V using the
sensitivity control. After that, you can monitor weakening of
the UV light source intensity by monitoring the control output
value.
(Sensitivity adjustment)
After installing and securing the sensor, adjust the sensitivity
with the sensitivity control. When the control output value is
within the range of 4 to 5 V, the orange operation indicator
lamp illuminates. (The sensor output goes up to approximate-
ly 6 V, and thus the operation indicator lamp does not illumi-
nate if the sensitivity is too high.) Adjustment is easier if you
verify that the operation indicator lamp is illuminated and then
fine-adjust the sensitivity to the desired value while viewing
the voltmeter display.
(If the UV light intensity is too high)
If the analog output is 5.0 V or higher when the sensitivity con-
trol is set to MIN (all the way to the left), or if the analog output
does not decrease when the sensor is moved away from the
UV lamp, the UV light intensity exceeds the sensor specifica-
tion. Move the sensor further away from the UV lamp
(If the UV light intensity is too low)
If the analog output is 5.0 V or lower when the sensitivity con-
trol is set to MAX (all the way to the right), the UV light inten-
sity is lower than the sensor specification. Move the sensor
closer to the UV lamp.
A-225
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