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DT

DT

DT

DT

DT-900 Series  DU

-900 Series  DU

-900 Series  DU

-900 Series  DU

-900 Series  DUAL TEC

AL TEC

AL TEC

AL TEC

AL TEC

® 

® 

® 

® 

® 

Motion Sensor for Commercial

Motion Sensor for Commercial

Motion Sensor for Commercial

Motion Sensor for Commercial

Motion Sensor for Commercial

and Light Industrial Applications—Installation Instructions

and Light Industrial Applications—Installation Instructions

and Light Industrial Applications—Installation Instructions

and Light Industrial Applications—Installation Instructions

and Light Industrial Applications—Installation Instructions

Step 1

Select mounting height.

Step 2

Carefully push screwdriver into slots

to disengage latches and open top

cover.

Step 3

Firmly insert screwdriver into slot in

arrow and rotate PIR Mirror Selector

to the correct range.

Step 5

Locate correct sensor range scale

and rotate Vertical Adjustment Screw

until the diamond corresponds to the

sensor mounting height (coarse

adjust).

Step 6

Set switch S3 to establish the sensi-

tivity best suited to your application.

Step 7

Select INFORMER

®

 mode with switch

S2, if desired. (See 

Supplemental

Information

).

SENSITIVITY

HIGH

LOW

H

N*
L**

S3

NORMAL

*Factory default setting. **Not connected

Step 8

Carefully push screwdriver into slot

to disengage latch and remove

bottom cover.

Step 9

Unfasten screws and remove mount-

ing plate from sensor.

Step 10

Attach mounting plate to wall at

desired height, using four fasteners

(not supplied).

Step 11

Install M5 (#10) screw in wall 1.9 cm

(3/4”) below mounting screw, as

shown, for tamper activation.

Step 12

Pull about 30 cm (12”) of wire from

wall through the opening in the

mounting plate and route wire to the

terminal strip.

Step 13

Hang the sensor on the mounting

plate hooks and fasten with the two

mounting plate screws.

Step 14

Wire the unit

as shown.

Use 2.0 - 0.3 mm

2

(14-22 AWG).

NOTE:

  Secure

wires to

mounting plate

with tie wraps.

Step 15

Loosen horizontal locking screw in

sensor support base.

Step 16

Grasp housing and rotate it to the

desired position (coarse adjust).  If

fine adjust is needed see Steps 20-

22.

NOTE:

  Reference marks = 5° change.

Step 17

Apply power to sensor and prepare

for walk-test.

1.9 cm (3/4”)

Step 20

For finer horizontal adjustments,

loosen the PIR horizontal fine locking

screw on PCB.

Step 22

Tighten horizontal fine locking screw

on PCB.

NOTE: 

 Fine adjustment allows for small

changes (3 degrees right or left) between

coarse settings.

Step 21

Rotate horizontal fine adjust knob to

the desired position.

30 cm (12”) minimum

INPUTS 1 & 2

Standard or

Cenelec mode

TROUBLE 

(NC)

30 VDC, 25 mA

TAMPER

 (NC)

30 VDC, 25 mA

ALARM OUTPUTS

(NO, NC, COM)

25 VDC, 125 mA,

Form C relay

END-OF-LINE

Connect terminating

resistors on last unit

POWER

10 - 15 VDC

50 mA (max) at 12 VDC

MASK DETECT 

(NC)

30 VDC, 25 mA

DT-900

DT-906

MODEL

RANGE

Switch S4

MIRROR

Selector

*Factory default setting.

Step 4

Set switch S4 to establish microwave

range.

Step 23

Tighten horizontal locking screw in

sensor support base.

Step 24

Remove jumper at J5, on the PCB,

to disable the LEDs after walk-

testing.

Step 25

Complete installation by closing top

cover and replacing bottom cover.

Wait 90 seconds for power-up self-

test to run.  All LEDs will flash.

.

 

NOTE: 

 LEDs flashing after 90 sec. = defective

PIR

(Green)

MW

(Yellow)

ALARM

(Red)

NOTE:

  Fine adjust may be needed during

walk-test. See Supplemental Information.

2 m (6’)

4 m (12’)

DT-900

15 m (50’) CLOSED

50’

DT-906

61 m (200’) OPEN*

200’ *

DT-906

37 m (120’) CLOSED

120’

DT-900

27 m (90’)

OPEN*

90’ *

Step 19

Walk-test the sensor to check for

adequate detection coverage and to

verify the sensor is fully functional.

Two to four normal steps should

make the LEDs light and trigger an

alarm.

NOTE:

  When there is no motion in the

detection area, all three LEDs should be off.

NOTE:

  If an on-going self-test problem, mask

condition or an INFORMER condition occurs,

the LEDs display a pattern that identifies the

trouble.  See 

Supplemental Information

(Table 3).

Step 18

Turn the microwave potentiometer

counterclockwise

 to decrease the

microwave range to 

minimum

.

During walk-test, gradually turn the

potemtiometer 

clockwise

 increasing

microwave sensitivity until the

desired range is obtained.

**Not recommended for DT-906

Optimal

Mounting

Height

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