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LOOP (+)
LOOP (-)
Figure 5: Wiring Diagram
ADDRESS SELECTION
Set the sensor address (see Figure 6) by using a flat blade screwdriver to
turn the two rotary switches to the left of the main optical assembly,
selecting the desired number between 01 and 159
addresses available will be dependent on panel capability, check the
panel documentation for information on this).
Tens rotary switch needs to be removed for panels capable of handling
more than 99 addresses.
SHORT CIRCUIT ISOLATION
The detector includes on-board short circuit isolation. In cases where it
is not desired the isolator can be bypassed using the two shunts on the
circuit board. See Figure 6 for jumper locations. The detector is supplied
with the jumpers fitted and the isolators bypassed.
ALIGNMENT PROCEDURE
Warning: When power is initially applied to the detector, before the
alignment procedure has been completed, it may enter fault or alarm. To
prevent unwanted alarms, disable the zone prior to applying power.
The alignment of the MI-LPB2-S2I is divided into four steps: Coarse
alignment, fine adjustment, final gain adjustment, and final verification. It
is necessary for all four steps to be executed properly to ensure proper
alignment of the product.
Pre-Alignment Checklist
•
Ensure that both the detector and reflector are mounted securely to
stable surfaces.
•
Ensure that all wiring is correct, and that terminal blocks are fully
seated into their receptacles on the detector.
•
Complete any wiring dressing to minimize movement to the detector
once the alignment procedure is completed.
•
Ensure that the appropriate reflectors are used for the installed
distance.
•
Ensure that the line of sight between the detector and reflector is
clear and that reflective objects are a minimum of 380mm from the
line of sight.
•
Ensure that both the detector and reflector are mounted within their
operational parameters for off axis angles.
MB200-00-02
LOOP (-)
LOOP (+)
(Note: The number of
A breakaway stop on the
•
•
•
Step 1. Coarse Alignment
See figures 6 and 7.
1. Ensure that both of the optics lock-down screws are loosened so
2. Looking through the alignment mirror at both the alignment gun sight
3. Once the reflector has been located, begin to adjust both the
Note that the coarse alignment procedure will not give accurate
alignment. It is sufficient only as a starting point for the next step. On
completion of the fine adjustment procedure, the alignment gun sight
may not appear to be centred on the reflector.
3
ISOLATOR SHUNTS
(SHOWN DISABLED)
ALIGNMENT
MIRROR
ALIGNMENT
P O S I T I O N
INDICATOR
O P T I C S
LOCK-DOWN
SCREWS X 2
VERTICAL ADJUSTMENT
Disable the zone or system to prevent unwanted alarms before
applying power.
Ensure power to the detector is "ON".
Normally, due to the current drain during alignment, only one unit on
a loop should be in alignment mode at any time
that the optics will move freely.
and reflector simultaneously, locate the position of the reflector in the
optical sight. Note that initially this step will require some practice.
An orange sticky label is supplied, which may be temporarily
mounted next to the reflector to aid initial location if the distance
between the reflector and the detector is large.
horizontal and vertical alignment knobs so that the reflector
becomes centred in the alignment mirror. Caution: If the optics are
incorrectly aligned in this step, it will not be possible to proceed with
the next step.
ALIGNMENT
SENSITIVITY
TEST
RESET
Figure 6: Switch
Locations
A L I G N M E N T
GUN SIGHT
DIGITAL SIGNAL
STRENGTH
READOUT
HORIZONTAL
ADJUSTMENT
Figure 7: Alignment
Adjustment Locations
I56-3879-000
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