Alignment; Optical Alignment - Optex AX-70TN Installation Instructions Manual

5

ALIGNMENT

5-1

OPTICAL ALIGNMENT

The optical alignment is an important adjustment to increase reliability. In accordance with the procedure indicated
in the items 1. and 2. in this chapter, make sure to align the monitor jack that monitor output nothing to attain the
maximum level.
Rough alignment by viewfinder
1
• While looking through the viewfinder, turn the dial to make alignment in such a way that the other detector is
at the center of the sights.
< Horizontal alignment >
Turn the horizontal alignment
dial by fi ngers to make
alignment
Checking of the illumination and Fine alignment
2
Checking of the illumination of the Alarm Indicator
• After the rough alignment using the
viewfinder, check the light receiving
status by the Alarm Indicator.
< Receiver >
Alarm Indicator
Fine adjustment with monitor jack
• After checking the receiving level of optical axis by using the alarm indicator, make sure to make fine alignment for
both transmitter and receiver with voltmeter until it reaches maximum monitor output over "Good" level.
< Receiver >
Set the voltmeter range to 5 to 10VDC and connect
the voltmeter probes and
monitor jack respectively.
< Vertical alignment >
Turn the vertical alignment
dial with a screwdriver to
make alignment
The relation between monitor output and receiving level of optical axis.
AX-70/130/200TN
AX-100/200TF
to and of the
EN-7
•
For Horizontal/Vertical alignment, refer to the following
illustration.
The alignment
can be completed.
View Finder
Light
interrupting
Alarm
ON(red)
Indicator
Realign
Monitor
output
Less than 2.2V
Light
interrupting
fast
Alarm
ON(red) flicker
Indicator
Realign
Monitor
output
Less than 1.0V
< Receiver / Transmitter >
The horizontal / Vertical alignment.
Note>>
When making the adjustment by the monitor jack, be
careful not to intercept the optical unit with your hand,
the tester pin cord, etc.
Realignment
(example)
The beam is not
properly aiming at the
center of viewfinder.
Light receiving
OFF
Fair Good Excellent
2.2V 2.5V 2.9V
or more or more or more
Light receiving
slow
flicker
OFF
Fair Good Excellent
1.0V 2.0V 2.5V
or more or more or more