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PB-1191 Beam Detector Manual
Wiring
The detector is installed with a twisted 2-wire line from base to base.
The PBB-1191 base contains one terminal block with 6 terminals for connecting the detector to the
line and for connecting the external response indicator. The terminal block incorporates a slide switch
jumper which places the end of line device in the circuit for initial continuity check. When the detector
is first installed, this jumper is automatically disengaged and remains that way.
Caution: Slide switch must be intact and engaged or trouble conitions will not be annunciated.
The opposite terminal block is supplied for the detector heater.
Short distance filter
Detector heater
In the event of danger of condensation, the installation of the detector heater is recommended
NOTE: Supply voltage 24V is necessary.
The opposite terminal block is supplied together with the detector heater and is used for connecting
the detector heater.
20
Short
distance
filter
Figure 30
Insert short distance filter for distances < 33 feet
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