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8-4
SOUND CHECK FUNCTION
You can be notified of the light reception status or current alarm
operation on the receiver by the sound of alarms.
Item
Light reception level
Walk test mode
Alarm memory display
8-5
RESPONSE TIME ADJUSTMENT FUNCTION
The detectable interruption time can be adjusted
(Refer to the diagram below to adjust the response time)
0.05
Response time adjustment volume
(Factory setting: 0.05)
<<Caution>>
(1) If the interruption time is shorter than the response time, the obstructing object is not detected.
(2) In areas where there are large objects that could be blown and obstruct the optical axis (e.g., birds, a lot of paper, and
cardboard), set the response time slightly slower by taking the installation condition into consideration. (However, if the
response time is too slow, the units may not detect an intruder.)
8-6
UPPER/LOWER CHANGEOVER FUNCTION
This function allows you to switch the optical unit to transmit/receive the light by pressing the upper/lower changeover switch.
Note: The sensors switch as shown in the diagram below when the upper/lower changeover switch is pressed.
Transmitter LED/reception
authorization LED
(Different displays for
upper and lower)
Upper/lower changeover
8-7
AUTO GAIN LOCK FUNCTION
The margin of sensitivity on this device is set so that an appropriate sensitivity can be obtained when the optical axis is aligned while the
device is installed in the maximum protection distance. However, if the actual distance is shorter than the maximum rated protection
distance, excessive margin of sensitivity is secured, which could make the device more susceptible to adverse effects of the reflection from
the ground or walls. The auto gain lock function helps to adjust to an appropriate margin of sensitivity and fix the setting in the same
manner as when the device is installed in the maximum rated protection distance, regardless of the actual installation distance (below the
maximum rated protection distance). (However, it is always required that the optical axis is correctly aligned.)
Shorter than the maximum
rated protection distance
Note: Only installed on the receiver
Operation (status)
Light reception level can be checked by the sound tone.
(The tone pitch becomes higher as the light reception level
increases.)
The beep sound is generated according to the alarm output.
(Activated for approximately 5 minutes after auto gain lock)
If an alarm is output while the memory LED is lit, the beep
sound is generated.
0.3
0.7
(Sec)
Lit
Off
switch
Note: Only installed on the receiver
Same margin of sensitivity
Function setting switch
(Factory setting: OFF)
While the receiver cover is removed.
Set the alarm memory display function to the remote
mode.
Note: Only installed on the receiver
Interruption time:
0.05 secs
Running at full speed
Note: Installed on the transmitter and the receiver
[Transmitter]
No transmission
Only transmit
Lit
from lower
Lit
Only transmit
from upper
Transmit from both
Lit
upper and lower
(When power is on)
Maximum rated protection distance
OFF
ON
4
4
4
Other settings
Interruption time:
Interruption time:
0.3 secs
0.7 secs
Walking normally
Walking slowly
[Receiver]
Lit
Off
Reception
Lit
authorization on
lower only
Lit
Reception authorization
on upper only
Reception authorization
Lit
on both upper and lower
(When power is on)
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