IntelliSense DT-420T, DT-435TC, DT-435T, DT-450T, DT-450TC Installation Instructions Manual

INSTALLATION INSTRUCTIONS

DT-420T 20' x 20' 6 m x 6 m
DT-435T 35' x 30' 11 m x 9 m
DT-435TC 35' x 30' 11 m x 9 m
DT-450T 50' x 40' 15 m x 12 m
DT-450TC 50' x 40' 15 m x 12 m

DT-400T series motion sensors combine two technologies into one small,
attractive package. Within a defined area, the microwave detector senses
motion, and the passive infrared (PIR) detector responds to radiant body
heat (infrared energy emitted by an intruder).

DT-400T sensors also feature a new TURBO circuit which provides more
protection against false alarms than ever before. The TURBO circuit allows
the microwave to "idle" until the PIR detects a change in infrared energy.

When the PIR detects a change in infrared energy, the microwave instantly
becomes "alert." If it detects motion within a specific time period, the sensor
will alarm. Because both technologies must verify intrusion at or about the
same time, false alarms are virtually eliminated.

In addition, DT-400T sensors are equipped with a supervision circuit that
constantly monitors the microwave technology. If a problem is detected,
the sensors will electronically signal an alarm to the control panel.

DT-400T sensors are also among the first to have both a Fresnel lens and
multi-segmented PIR mirror. This unique optical system provides dense PIR
coverage from directly beneath the unit (look-down zones) to maximum
range.

FEATURES

.

Microwave/PIR technology

.

New TURBO circuit

.

Dual element PIR

.

Microwave supervision

.

Unique PIR optics

.

Single edge PIR triggering

.

Low 35 mA current draw at
12 VDC

.

9 - 14 VDC operation

.

Exposed LEDs

.

All models are UL listed

MOUNTING LOCATION

Select the best location in the room for both technologies. Aim the sensor
toward the interior of the room, away from windows, moving machinery, and
heating/cooling sources.

Maximum range is obtained at a mounting height of 7'6" (2.3 m). Make
sure the sensor has a clear line of sight to all areas you wish to protect.
Infrared radiation cannot penetrate solid objects. If the PIR is blocked, the
unit will not alarm.

MOUNTING PROCEDURE

To remove the sensor's front
cover, use a small screw­driver to push down on the
latch at the top of the unit,
while separating the housing
parts.

To remove the printed circuit board
(PCB), lift up on the latch at the top of
the unit, while using the microwave
antenna to gently pull the PCB
forward.

.

Enhanced run-through
detection

.

Automatic temperature
compensation

.

Energized Form A alarm relay

DT 420T, DT 435T, DT 450T

.

Energized Form C alarm relay

DT 435TC, DT 450TC

.

Shorter reset times

.

Optional barrier and pet-alley
lenses available.

.

DT-435TC and DT450TC are
also ULC listed

LATCH

Figure 1

DT-400T Assembly

Securely mount the rear housing at the desired location. When mounting
the sensor on a wall, use the two keyholes in the back of the rear housing.
When mounting the sensor in a corner, use the breakout tabs on the beveled
corners of the unit. A swivel mount bracket (Model SMB-10) is also available
from IntelliSense.

WIRING
Observing the proper polarity, wire the sensor as shown below (use 22

- 14 AWG). Do not leave excess wire inside the unit. Push as much of the
wire as possible back into the wall when returning the PCB to its housing.

TB2

ALARM

100 mA, 30 VDC

Models
DT-420T
DT-435T
DT-450T

Model
DT-435TC
DT-450TC

CHANGING THE FRESNEL LENS

To change the Fresnel lens,
remove the sensor's front cover.

Next remove the lens retainer by
depressing the retainers
brackets on either side of the
lens retainer.

Take out the existing lens, and put
the new one in with the SMOOTH
side facing outward. Install the lens
with the small slot at the top. The large
slot on the bottom of the lens should be
seated over the tab on the bottom of the front cover.

Snap the lens retainer back into place, then re-assemble the housing.

NOTE: Two additional lenses are available for these sensors. The pet-alley
lens blocks lower PIR zones to exclude pets from the field of view; the barrier
lens blocks outer zones for narrow applications.

When the pet-alley lens is used, install a look-down mask (provided) over the
inside of the look-down window, and make sure to mount the sensor at a
height of 4'.

The optional lenses are available at no charge from your local distributor, or
call IntelliSense at [phone]. Order Part Number 0-000-400-03.

SYSTEM TESTING

All the walk-test LEDs are located at the bottom, left side of the unit. DT-400T
sensors are equipped with two diagnostic LEDs: green for PIR and yellow
for microwave. The red LED is used to indicate an alarm condition.

Apply power to the sensor and let it warm up for at least three minutes. Begin
walk-testing after all three LEDs have gone out.

RANGE ADJUSTMENT

A range thumbwheel for the microwave is located at the upper left edge
of the PCB (R53). When the PCB is oriented in the correct mounting position,
and you are facing it, turning the thumbwheel toward the bottom of the
PCB will INCREASE the range of the microwave. Refer also to the label
pasted on the microwave antenna.

Before walk-testing the sensor, set the microwave range thumbwheel at
MINIMUM by turning it toward the top of the PCB (as far as it will go). Then,
as you perform the walk-test, gradually increase the sensitivity of the
microwave until the desired range is obtained.

PIR range is determined by the mounting height and angle, or by masking
specific PIR zones.

CNC

ALARM

500 mA, 30 VDC

NO C NC V- V+

V- V+

POWER

35 mA, 12 VDC

POWER

35 mA, 12 VDC

TB1

TB1

LENS RETAINER

TAMPER

25 mA, 30 VDC
NC

TAMPER

25 mA, 30 VDC
NC

LENS RETAINER

Small

BRACKET

Slot

Figure 2

Lens Change Assembly

CONTINUED

TB2

LENS

TB2

R53

MICROWAVE RANGE
THUMBWHEEL

REMOVE JUMPER
TO DISABLE
DIAGNOSTIC LEDS
AND ALARM LED

W1

DIAGNOSTIC LEDS
AND ALARM LED

V+

TB1

WALK-TEST

Walk across the protected area at the ranges to be covered. Two to four
normal steps should make the diagnostic LEDs light, and the red LED
should indicate an alarm condition. When there is no motion in the protected
area, all three LEDs should be off.

MICROWAVE SUPERVISION

If the microwave technology stops sending or receiving signals, the sensor
will lock into an alarm condition and signal an alarm to the control panel. The
LEDs at the sensor, however, will not light.

If the microwave regains its signal, the sensor (and LEDs) will return to
normal operation.

LEDs DISABLE

To disable the diagnostic LEDs and alarm LED, remove the jumper from
position W1 on the PCB.

PRODUCT SPECIFICATIONS

Range:

DT-420T 20' x 20' (6 m x 6 m)
DT-435T 35' x 30' (11 m x 9 m)
DT-435TC* 35' x 30' (11 m x 9 m)
DT-450T 50' x 40' (15 m x 12 m)
DT-450TC* 50' x 40' (15 m x 12 m)

Alarm relay:

DT-420T, DT-435T, DT-450T
Energized Form A (NC)
100 mA, 30 VDC

DT-435TC, DT-450TC
500 mA, 30 VDC
Energized Form C

Tamper switch:

(NC)
25 mA, 30 VDC

Power requirements:

9 - 14 VDC
35 mA, 12 VDC

NOTE: The Pet-Alley Lens is not
to be used in a ULC
Certified installation.

White light immunity:

60,000 candle power at 10' (3 m)

PIR fields of view:

standard lens
22 long range
6 intermediate
3 lower
6 down

Dimensions:

5" H x 2-7/8" W x 2-5/16" D
(13 cm x 7 cm x 6 xm)

Weight:

12 oz (340.2 g)

Operating temperature:

32o to 120o F (0o to 49o C)

Sensitivity:

2 - 4 steps within field of view

Approvals:

FCC/IC certified *ULC listed
UL listed

PROTECTION PATTERNS Patterns Shown are for:

DT-450T and DT-450TC

Use as reference for DT-420T, DT-435T, and DT-435TC

TOP VIEW

Wide Angle Lens

7'6"

floor

Down

Zones

40'

SIDE VIEW

Wide Angle Lens

Intermediate

Lower

Long Range

50'

PROTECTION PATTERNS FOR OPTIONAL LENSES

TOP VIEW

Barrier Lens

50'

TOP VIEW

Pet-Alley Lens

The Top View Pet-Alley Lens is the
same as the Top View Wide Angle
Lens.

7'6"

floor

SIDE VIEW

Barrier Lens

50'

SIDE VIEW

Pet-Alley Lens

50'

IMPORTANT: The DT-4XXT must be connected to a UL listed power

supply or UL listed control unit capable of providing a

minimum of four hours of standby power.

NOTE: The DT-4XXT should be tested at least once each year to

ensure proper operation.

NOTE: The ULC label or listing markings on a product is the only
evidence provided by Underwriters Laboatories of Canada to

identify products that have been produced under the Listing
and Follow-up Service.

This equipment has been tested and found to comply with the limits for a

FCC NOTICE

field disturbance sensor, pursuant to Part 15 of the FCC Rules. The user
is cautioned that changes or modifications not expressly approved by
IntelliSense could void the user's authority to operate this equipment.

Copyright 2001 IntelliSense.
5-051-176-00 Rev F

IntelliSense and DUAL TEC are registered
trademarks of Honeywell, Inc.

All Rights Reserved.