Optical Axis Fine Adjustment Using the Alignment Wireless Checker: ER-02 (Sold Separately)
Optical Axis fine Adjustment Using the Monitor Output Voltage
Accurate adjustments of the optical axis can be achieved by
checking the light reception level value using the voltage of the
monitor output.
4. Check if the light from another transmitter enters the receiver.
(1) Press the upper/lower changeover switch on the transmitter to
select [No transmission].
(2) Press the upper/lower changeover switch on the receiver to
select [Reception authorized for both upper and lower].
(3) Check that the alarm LED lights up when the receiver outputs
an alarm signal, and that the sensitivity attenuation LED also
lights up. Also check the monitor output voltage.
If no alarm is activated or the sensitivity attenuation LED is not lit
When using multi-level protection, the monitor output voltage may
become close to “1 V” due to effects of other photoelectric beam
sensors. In such case, readjust the other photoelectric beam
sensors to reduce the effects to the minimum possible.
In addition, check that an appropriate channel is set.
Accurate adjustments of the optical axis can be achieved by checking the light reception level value using the voltage of the monitor output.
As the light reception level value can also be checked using the voltage on the transmitter, more accurate adjustments of the optical axis can be
achieved.
Using the alignment wireless checker enables easy and accurate beam alignment.
Providing sufficient margin of sensitivity increases resistance to the dense fog, snow, and heavy rain, which makes it possible to construct a highly
reliable intrusion alarm system.
Note: For detailed operation procedure of the alignment wireless checker, refer to the instruction manual for the alignment wireless checker ER-02.
More than 2.2 V DC
2.0 to 2.2V DC
Less than 2.0V DC
Monitor Output Voltage
Best
Good
Poor, re-adjust
Light Sensitivity
See the following table for the monitor output voltage.
Monitor
Monitor
Monitor
Off
Light
on
Light
on
Light on
Light on
Light on
Receiver
Receiver
Transmitter
Receiver
Transmitter
Receiver
Transmitter
2. Fine adjust the upper level optical axis.
(1) Press the upper/lower changeover switch on
the transmitter to select [Only transmit from
upper].
(2) Press the upper/lower changeover switch on
the receiver to select [Reception authorization
on upper only].
(3) Turn the adjustment screw to fine adjust until
the monitor output voltage reaches the highest
value.
(Adjust both the transmitter and receiver.)
3. Fine adjust the lower level optical axis.
(1) Press the upper/lower changeover switch on
the transmitter to select [Only transmit from
lower].
(2) Press the upper/lower changeover switch on
the receiver to select [Reception authorization
on lower only].
(3) Turn the adjustment screw to fine adjust until
the monitor output voltage reaches the highest
value.
(Adjust both the transmitter and receiver.)
Bleep
(High-pitched
tone)
Bleep
(High-pitched
tone)
<<Caution>>
First, check only the transmission on the upper level and reception on the upper level , and then check only the transmission on the lower
level and reception on the lower level.
(The values are not displayed correctly when the light can be received for both the upper and lower levels.)
1. Insert a commercially available tester into the monitor
jack on the receiver.
<<Caution>>
The monitor jack is polarized.
Check the polarity of the tester pin before inserting it.
Use a tester with an internal resistance of over 100 kΩ.
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