Download Model 351-12 Ultrasonic Detector

lUo.351-12ULTRASONIC
DETECTOR
GENERAL INFORMATION
The No. 351-12 Ultrasonic
emits
invisible
and inaudible
sound waves which detect
the presence
of a moving object
such as an intruder.
The ultrasonic
transmitter
saturates
an area with a pattern
of these
inaudible,
high.frequency
sound waves.
its receiving
head picks
up the sound waves after
they have been modified
by the
“imprint”
or “look”
of the protected
area.
This “look”
is achieved
by sound waves reflecting
off walls,
furniture,
,and
stationary
objects
in the room.
Any movement of objects
or persons
causes
waves to be reflected
at a changed frequency
(known as the Doppler
effect).
the frequency
of the received
waves changes
from the transmitted
frequency,
shift
is detected
by the electronic
circuitry
in the unit.
This activates
wired
into the protective
circuit
of the alarm system,
.FINDING
other
some
When
the
a relay
THE BEST LOCATION:
inspect
the inside
premises
carefully
before
installing.
There are certain
to look for,
such as air currents
and vibrations,
which appear as motion
to
When determing
the best location,
ultrasonic
detector,
triggering
the alarm.
make certain
the following
are NOT present:
AIR CURRENTS created
heat from baseboard
VIBRATIONS such
windows or walls
on sturdy
inside
by space heaters,
heaters
and strong
as those commonly caused
that
shake when traffic
walls.
HIGH-PITCHED SOUNDS from telephone
in the area to be protected.
MOVING OBJECTS such as house
hanging
objects
that tend to
currents.
bells
air-conditioning
drafts
on the
by loose
passes.
or
pets or other
sway, or open
rad.iator
vents,
floor.
fitting
Always
rising
,rl
doors
locate
valves
things
the
and show
the unit
located
directly
animals
on the premises..
doors that
can be moved
Also,
by air
The ideal
location
for the No. 351-12 Ultrasonic
is 1.25-2
Do not locate
it
from the floor,
safely
away from drafts.
since the unit,
when angled
downward for maximum coverage,
same floor
drafts.
meters
(4 to
too near the
will
confront
7 ft.)
ceiling
the
(+I
WIRING CONNECTIONS
I.
In any closed
circuit
system,
cut the positive
conductor
Connect one end to terminal
of the protective
circuit.
C (common) and the other
to terminal
N.O. (normally
ope
2.
Connect the I2 Volt D.C, power supply
wires
to
terminals
marked I2 V.D.C.
Do not apply
power
until
all connections
are completed.
OBSERVE POLARITY.
16
the
9
PATTERN AND RANGE SETTING
The pattern
of the ultrasonic
waves emitted
by the No. 351-12
is
oblong.
Its range is
approximately
7.5 meters
long
and 3.5 meters wide at its
widest
point.
The actual
operating
the No. 351-12 will
ing to two factors:
range of
vary accord-
SURFACE REFLECT I ON
In areas
surfaces
mirrors,
that
have highly
reflective
are hard and.easily
reflect
walls
and most solid
surface
surfaces
coverage
is greater
because the
ultrasonic
waves.
Glass,
tile
floors,
areas are considered
reflective
surfaces.
sound-absorbing
material
Surfaces
containing
soft,
Examples of this
kind of surface
are
No. 351-12.
heavy plush furniture,
etc.
tend to
carpeted
reduce
floors,
the range
draperies;
of
the
HUMIDITY
Ultrasonic
waves
highest
humidity
to have a limited
are affected
by atmospheric
humidity.
Between the lowest
levels
the range can actually
change 2:l.
Therefore,
it
amount of overflow
protection
in the area.
and
is wise
ADJUSTING THE RANGE
You can increase
or
ment located
in the
range by turning
the
where the pattern
wi
decrease
the area to be protected
by the sensitivity
adjust;
rear of the unit.
In a highly
reflective
room, reduce the
adjustment
counter-clockwise.
In a highly-absorbent
location
I I be sma I ler,
turn the adjustment
clockwise
to i’ncrease
the
range.
As a genera I rule,
protecting
minimum:
open space.
MULTIPLE
it
is always best
strategic
areas
the No. 351-12 to
or large sections
a
of
INSTALLATION
Keeping
in mind considerations
other
factors,
the installation
Any number
interfering
fol lowed.
to keep the range of
and not entire
rooms
of surface
reflections,
may be laid out.
humidity,
location
of No. 351-12 ultrasonics
may be placed
in the same area without,
with each other,
as long as certain
basic
rules
of positioning
A number of suggested
p.atterns
are shown as follows:
and
are
SUGGESTED INSTALLATIONS
POOR INSTALLATIONS
Note that
for best results,
the units
should
not be directed
at each other
unless
the distance
between them exceeds
I8 meters,
The
units
can be placed on opposite
walls
with at least
3.5 meters of space from center
to center.
Placement
in adjacent
corners
is effective,,
too.
However,
donrt
place the units
too close
together,
as some range shortening
can occur.
SETTING AND TESTING
The area should
be cleared
some business
establishments
after
hours.
of
all
people
during
the test.
it may be more convenient
to
We suggest
set up the
that
in
No. 351 -12
I.
Every time the No. 351-12 Ultrasonic
tri’ggers,
the lamp on the
unit
will
light.
When there
is no motion
in the room (including
the test
light
should
be OFF.
2.
During
area.
3.
Conduct
points.
NOTE :
the
test
be alert.to
any
a walk test
by walking
You can determine
the
into the
range of
noise
protected
protection
or
vibration
in the
area at several
different
by observing
the light.
TO CONDUCT A PROPER WALK TEST, ALWAYS WALK DIRECTLY TOWARD OR
AWAY FROM THE UNIT, AND NEVER ACROSS IT.
The unit
has built-in
delay that
your movement to go undetected.
tests.
4.
high-pitched
face of the
your own),
allows
the first
one or two steps
Bear this
in mind when conducting
Remember you can control
the range of protection
by adjusting
the
C I ock-w i se to i ncrease
sensitivity
adjustment
in back of the unit.
Counter
clock-wise
to decrease
the range.
Once the
the range.
screw in the hinged terminal
cover,
sensitivity
control
is set,
18
of
walk
:p1
UNDFRSTANDING THE TURBULENCE WARNING SYSTEM
On the No. 351-12 the “turbulence
warning
system”
serves to check the level of
air turbulence
in a room throughout
the day, maki’ng certain
it is below the
wi’ll
prevent
the setting
of the main control
danger
I eve I . The “warn tng system”
The walk test
lamp will
stay Ii’t to warn of this
if the turbulence
is too high.,
Once the
allowing
the customer
to spot a potential
false
alarm.
condition,
turbulence
is reduced,
the lamp will
qo out and the customer
can set the alarm
on
The “turbu le&e
warning
system”. now has no effect
system for the evening.
the operation
of the unit.
In the event
should
check
the sensitivity
that excessive
the premises
adjustment
the customer
turbulence
has forced
the unit to trip,
If none can be located,
for signs of new turbulence.
on the.No.
351-12 will
have to be reset.
WHAT TO ADVISE THE CUSTOMER
If is important
to
working
condition.
inform
relocate
the
the
customer
how he may maintain
I.
Never
2.
Never change the physical
surroundings
furniture
is moved or air-conditioning
to be read justed ’
3.
It should
Never turn the No. 351-12 OFF.
alarm will
be transmitted
when the control
unit
is ever turned
OFF while
the system
dition
will
result.
the
system
unit,
of the protected
installed,
the
If
area.
system may have
operate
24 hours a day.
No
If the
instrument
is OFF.
is ON, an immediate
alarm con-
4B
SPECIFICATIONS:
Voltage:
Current
Drain:
Frequency:
Dimensions:
Weight
(net) :
Optional
Equipment:
I2 Volts
D.C.
80MA
40 KHZ
24lMM x 127MM x 51MM (9
(3 l/4 Ibs.)
1.5 kg.
No.
No.
in proper
353 Bracket
for
352 “Wood Grain”
19
l/2”
x 5” x 2”)
Wall Mounting
Case
(Recommended)
TROUBLESHOOTING
TROUBLE:
I.
351&35142
Nos.
WALK TEST LIGHT DOES NOT OPERATE, BUT RELAY CLICKS.
PROBABLE CAUSE
A .. System
battery.
8.
TROUBLE:
operating
Wa I k test
from
LED burned
REMEDY
standby
A. Check the voltage
output
of the plugin transformer
and the voltage
input
at the ultrasonic
unit
for
I2 volts
A.C.
out.
B. LED must
be replaced.
2. AREA OF COVERAGE CHANGES.
A. Customer
ture or
has repositioned
furniequipment
in premises.
A. Caution
customer
that
changes
in I ayout can affect
coverage.
Read j us-t or
relocate
Ultrasonic.
B. Substantial
change in the temperature
and humidity
in p.rotected
area .
TROUBLE : 3.
B.
Increase
or decrease
the sensitivity
adjustment
accord i ng to the change
that
has taken place.
UNIT GOES INTO ALARM FOR NO APPARENT REASON.
PROBABLE CAUSE
A. Drafts
creating
m-
TROUBLE:
or
REMEDY
air turbulence
are
the alarm condition.
B. Birds
or small
animals
are
entering
building
(especially
warehouses).
B. Check
entry
etc.
C; Unit(s)
24-hour
C. Make certain
plugged
into
at all times.
4.
not plugged
outlet.
into
a
SOME REMOTE CONTROL TELEVISIONS
OF A NO. 351.
1r-l
A. Check for air ducts
and sources
of
drafts
that may have been missed
during
the initial
installation.
See
“Understanding
the Turbulence
Warning
System”.
for and eliminate
points
for cats,
BEHAVE ERRATICALLY
all
possible
dogs, birds,
all
ultrasonics
outlets
that
are
are
live
AFTER THE INSTALLATION
REMEDY
PROBABLE CAUSE
The 351 can be switched
off while
the
TV is in use, with the built
in
ON-OFF switch.
Note that
when the unit
is off,
the protective
circuit
relay
is open.
The system cannot
be armed
until
the 351 is turned
ON. If the
ON/OFF portion
of the TV remote control
is responding
to the ultrasonic
signals,
then it is possible
that
with
the 351 ON and transmitting,
the TV
No. 351 operates
on similar
frequency as some remote control
televisions.
20
/1
I
set may be turned
on without
warning.
In such a case,
the unit must be reaimed or
relocated.
TROUBLE:
5.
UNIT
IS NOT OPERATING (NO. 351-12
ONLY).
PROBABLE CAUSE
Unit
is
not
receiving
REMEDY
power.
Check
input
Nos.352&353
WOOD GRAIN CABINET AND
The No. 352 “Wood Grain”
Cabinet
is
No. 351 Ultrasonic
Motion Detector.
2.
Gently
slide
the ultrasonic
The bottom of the cabinet
3.
A slight
increase
in the sensitivity
of the unit will
Adjust
the sensitivity
control
by.turning
necessary.
for this
purpose
located
in the back of the ultrasonic
Screw in the hinged back plate.
4.
Place the back cover
in position
so that
all
wiring
passes
the opening
located
on the bottom
left
portion
of the back
5.
Using two small wood screws found with
Starter
holes are located
back cover.
cabinet for the wood screws.
No.
353 Adjustable
the
the No. 350 or
built
to house either
To use the “wood gra i n” cabinet:
Complete
all
hinged plate
the
to
ultrasonic
unit.
Leave the
unit
head first
into the
will
have four screw holes.
Mounting
the cabinet,
on opposite
12 volts
BRACKET
I.
Installing
wiring
open.
for presence
of
at rear of unit.
the
back
cabinet.
now be
the screw
unit.
through
cover,
secure the
sides of the
Bracket:
Four evenly
spaced holes on the bottom of the “wood grain”
cabinet
are used to
mount the No. 353 Adjustable
Mounting
Bracket,
These holes are fitted
with
metal threads
and are designed
to accept
the two metal screws found with the
Bracket.
The four holes are located
on a straight
line to permit
mounting
the bracket
in
and-far
right
three
different
positions
on the cabinet:
far left,
center
ing
posftions.
Your selection
will
depend on the desired
locat ion and position
of the No. 352 “Wood Grain”
Cabinet.
21
D.C.