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5.1. First attach the transmitter cover.
5.2. Confirm that the receiver sensitivity attenuation LED
stays OFF. Pre-attach the receiver cover but do not
secure.
5.3. A beep sound will occur after 5 seconds. Once this
occurs, secure the receiver cover with screws.
Note:
Sensitivity allowance is automatically set when the beep
sound is initiated.
Note:
If the tone alignment switch is left accidentally ON, the
tone will stop when the receiver cover is pre-attached.
5.4. If there is a continuous 'beep' sound, detach the
receiver cover and re-adjust. Refer to the section Auto-
gain lock function for more information.
5.5. Install the covers after setting auto gain.
Checking the operation
See Figure 19.
After installing, aligning and auto-gain setting, test the
operation by walk-testing the beam. Two methods can be
used:
1.
Alarm LED only.
2.
Alarm LED and sound check via tone alignment switch. If
the tone alignment switch is set to "ON", the tone will stop
when the cover is replaced. However, the tone will
effective for an audible operation test for five minutes
when the auto-gain is locked.
Function descriptions
Four-channel frequency selection
See Figure 21.
The beam pairs may be set at various frequency levels to
avoid cross-talk between the units that are stacked, in-line, or
have other configurations where there is potential for spill-over
transmission from one beam to another. Set the frequency
level as shown:
Figure 21 description
1
Line protection
2
2-stacked protection
3
Line and 2-stacked protection
4
Perimeter protection
5
Perimeter 2-stacked protection
Note:
The transmitter and receiver must be set at the same
channel! Paired TX/RX will not set up unless they are set at the
same channel.
Note:
It is advised to use a voltmeter when aligning to ensure
the highest level of stability.
Note:
Upper and lower sensors should have the same model
numbers in stacked configuration.
8 / 43
Beam power selection
This option allows the field selection of the appropriate
intensity relative to the application. For distances significantly
less than the specified protection distance, reduce the beam
intensity to eliminate potential reflection problems. For zones
reaching maximum protection distance, set the beam level to
the highest level.
Model
Low
≤ 25
PB601
≤ 75
PB611
≤ 150
PB621
Auto-gain lock function
The auto-gain lock standardizes the responsiveness and
tolerance level of the units regardless of the variable
installation distances. As shown in the figures below, the two
situations have exactly the same tolerance and
responsiveness levels even though the distances are different.
2
The receiver issues a 'beep' tone approximately five seconds
after the cover is put in position. This tone indicates that the
auto-gain has been set. See the table Setting auto-gain below.
Table 1: Setting auto-gain
Tone
Indication
One pulse
Optimal
(beep)
sensitivity
has been set.
Continuous
Optimal
tone (20
sensitivity
seconds)
cannot be
set.
Note:
A tone is generated regardless of whether "beep"
(alignment tone) switch is set to ON or OFF.
Note:
The auto-gain setting is locked in even if power is
disrupted.
Beam power (m)
High
25-50
75-100
150-200
1. Less than protection
distance
1
2. Maximum protection
distance
Result
Cause
Remedy
OK
_
_
not
Beam is
Remove
interrupted
obstructions and
good
once the
ensure that the
cover is
hand is not
replaced.
breaking the
beam when the
cover is held in
a temporary
position.
Beams are
Check the beam
misaligned
power setting at
and the
the transmitter
sensitivity
with with the
attenuation
cover attached
LED lights.
and readjust the
beam alignment.
P/N 1077839 • REV 1.0 • ISS 13JUN11
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