Optex Smart Line Series Installation Instructions Manual page 16

4
After the alignment using the viewfinder, make adjustment with the voltmeter for more accurate optical alignment.
Set the voltmeter range to 5 to 10 VDC.
After checking the receiving level of optical axis by using the alarm indicator, make sure to make fine alignment for both the
transmitter and receiver with voltmeter to achieve a monitor output level of "Excellent".
Adjust the horizontal and vertical angle while checking the light receiving status by the alignment level indicator LEDs and sound.
5
NOTE>>
The alignment level indicators have 5 LEDs, each LED represents the level of
alignment, ranging from poor to excellent. Each LED will indicate 3 steps of
alignment, slow blink = okay, fast blink = better, continuously on = best, providing
15 graduated stages.
The optical alignment level can also be checked by sound.
(SL-QDP: Receiver only)
See the following table for operations of LED display and sound.
Poor
View
finder
(image)
Monitor
Jack
output
(range
5-10VDC)
Indicator
LED
Excellent
Good
Fair
Re-Align
Poor
Sound
assist
function
SL-QDM series: Optical alignment can be performed by opening a cover of either the transmitter or receiver.
6
Make the settings of 1 to 5 to the lower as well.
Caution
Realign
0.5 V
Pulsed tone
—
SLOW
Press the tamper buttons on both the receiver and transmitter (close the covers) after performing
optical alignment for a set of detectors.
Not doing so may result in interference with other sets of detectors and posing a problem on optical
alignment.
Insert the voltmeter's positive pin
into the positive terminal of the
monitor jack, and the negative pin
into the negative terminal.
OFF Slow blink Fast blink Continuously
Fair Good
1.2 V 1.5 V
-16-
Alignment level indicator LED
ON
Excellent
2.0 V
Continuous tone
FAST