BD-SS and BDT-SS

CS-2516

09/01/06

Page 2 of 4

digital display will illuminate and read the current sensitivity setting in

percent obscuration. To change the sensitivity, continue to depress the

sensitivity switch until the desired setting is achieved. The digital display

will turn off automatically if no further switch presses occur.

In addition to the four standard sensitivity selections, the detector has two

Acclimate™ settings. When either Acclimate™ setting is chosen, the detec-

tor will automatically adjust its sensitivity using advanced software algo-

rithms to select the optimum sensitivity for the environment. The sensitiv-

ity will be continuously adjusted within the ranges specified in the chart

above.

Total obscuration can be converted to percent per foot, assuming uniform

smoke density for the entire length of the beam. The chart below converts

total obscuration percent per foot for all acceptable sensitivity settings.

Specifications

Operational Specifications

Protection range

16 to 230 feet (5 to 70 m), 230 to 328

feet (70 to 100 m) using optional

BEAMLRK kit.

Adjustment angle

±10° horizontal and vertical. Note that

the optics move independently of the unit.

Sensitivity (6 levels)

• Level 1 — 25%.

• Level 2 — 30%.

• Level 3 — 40%.

• Level 4 — 50%.

• Acclimate™ Level 5 — 30% to 50%.

• Acclimate™ Level 6 — 40% to 50%.

Fault condition (trouble)

• 96% or more obscuration blockage.

• In alignment mode.

• Improper initial alignment.

• Self-compensation limit reached.

Alignment aid

• Optical gunsight.

• Integral signal strength indication.

• Two-digit display.

Indicators

• Alarm — local red LED and remote alarm.

• Trouble — local yellow LED and remote

trouble.

• Normal — local flashing green LED.

Test/reset features

• Integral sensitivity test filter (BDT-SS

only, requires external power supply).

• Sensitivity filter (incremental scale on

reflector).

• Local alarm test switch.

• Local alarm reset switch.

• Remote test and reset switch (compatible

with RTS451 and RTS451KEY test

stations).

Smoke detector spacing

On smooth ceilings, 30 – 60 feet (9.1 to

18.3 m) between projected beams and

not more than one-half that spacing

between a projected beam and a sidewall.

Other spacing may be used depending on

ceiling height, airflow characteristics, and

response requirements. See NFPA 72.

Sensitivity

Setting

Percent

Obscuration

Display

Reading

Acceptable

between

detector and

reflector (ft)

Acceptable

between

detector and

reflector (m)

Level 1

25%

25

16.4 to 120

5.0 to 36.6

Level 2

30%

30

25 to 150

7.6 to 45.7

Level 3

40%

40

60 to 220

18.3 to 67

Level 4

50%

50

80 to 328

24.4 to 100

Acclimate™ Level 1

30% to 50%

A1

80 to 150

24.4 to 45.7

Acclimate™ Level 2

40% to 50%

A2

80 to 220

24.4 to 67

Reflector Mounting Guidelines