Checking The Operation; Function Descriptions - Interlogix PB611M Hoja De Instalación

an intermittent way, sensitivity is not good. In this case,
remove the lock spacer and adjust beam alignment again.
(Please refer to the section Function descriptions,
subsection Auto-gain lock function.)
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 lock spacer is in place.
5.3 If there is a continuous 'beep' sound, detach the lock
spacer and re-adjust. Refer to the section Function
descriptions, subsection Auto-gain lock function for more
information.
5.4 Install the covers after setting auto gain.

Checking the operation

See Figure 13.
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 lock spacer is inserted. 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 15.
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 in Figure 15.
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.
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
≤ 75
PB611M
≤ 150
PB621M
8 / 40
Beam power (m)
High
75-100
150-200
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.
A "beep" tone is issued from the receiver approximately five
seconds after the lock spacer is put into position. This tone
indicates the Auto-gain has been set. Refer to the table 1
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.
Tone indicator
This feature provides audible testing or signals for the items
listed in the table 2 below.
Result Cause Remedy
OK _ _
not 1. Beam is 1. Remove
good interrupted obstructions and
once cover replace cover.
is replaced. Check beep
tone.
2. Beam is
misaligned 2. Check beam
and power setting at
sensitivity transmitter with
attenuation cover off and re-
LED lights. adjust beam
alignment.
P/N 1070011 • REV C • ISS 19MAR19