SilentKnight SK-Beam / SK-Beam-T Addressable Beam Smoke Detector w/Test User Manual

Installation and maintenance instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS

SK-400-007

I56-3433-001R

SpECIfICATIONS
GENERAL
Range:

16 to 230 Feet (5 to 70m); 230 to 328 Feet (70 to 100m) using optional accessory BEAMLRK

Sensitivity:

25% to 50% Total Obscuration in 6 levels

Level 1 = 25%

Level 2 = 30%

Level 3 = 40%

Level 4 = 50%

Level 5 = 30% to 50% (Acclimate)

Level 6 = 40% to 50% (Acclimate)

Spacing:

30 to 60 Feet (9.1 to 18.3m)

Response Time:

ALARM - 20 seconds typical

TROuBLE - 30 seconds typical

Trouble Conditions:

Beam Blockage (96% or More Obscuration)

Improper Initial Alignment

Self-compensation limit reached (service needed)

In Alignment mode

Test/Reset Features:

Integral Sensitivity Test Filter (SK-Beam-T only, requires additional external power supply)

Sensitivity Filter (Incremental scale on reflector)

Local Alarm Test Switch

Local Alarm Reset Switch

Remote Test and Reset Switch Capability (compatible with RTS451/RTS451KEY/RTS151/RTS151KEY)

Indicators:

ALARM - Remote Output, Local LED (red)

TROuBLE - Remote Output, Local LED (yellow) Blink Pattern Indicates Trouble Diagnostics

NORMAL OPERATION - Local LED (flashing green with communication)

ALIgNMENT AIDS - Optical gunsight (coarse adjustment) 00 to 99 Digital Display (fine adjustment)

SENSITIvITY - Digital Display Readout in Percent Obscuration

Style 7 Operation:

On-board isolators provide style 7 operation. (may be disabled via shunts on circuit board)

EnvironmEntal
Temperature:

–22°F to 131°F (–30°C to 55°C);

NOTE: for applications below 32°F (0°C) see Special Applications section of this manual.

Humidity:

10% to 93% RH Noncondensing

Mechanical
Shipping Weight:

3.9 lbs. (1.77 kg)

Shipping Size:

15˝ Ч 10.5˝ Ч 6.5˝ (381mm × 267mm × 165mm)

Mounting:

Wall only without optional accessories

Wiring:

Plug-in Terminal Blocks (12 to 22AWg)

Adjustment Angle:

±10° Horizontal and vertical

Paintable Trim Ring:

May be painted using enamel or acrylic type paints

Electrical
voltage:

15 to 32 vDC

Standby Current:

Avg. Standby:

2mA Max. (1 communication every 5 sec., LED flashing, SLC @ 24 v)

Max. Alarm (LED on):

8.5mA Max.

Max. Trouble (LED on):

4.5mA Max.

Max. Alignment:

20mA Max.

External Supply (SK-Beam-T only):

vOLTAgE - 15 to 32 vDC

CuRRENT - 0.5A Max.

Remote Output: (alarm)

vOLTAgE - 15 to 32 vDC; NOTE: Output voltage same as device input voltage.

CuRRENT - 15mA maximum; 6mA minimum; NOTE: Output current is limited by 2.2Kohm resistor

SK-Beam, SK-Beam-T Single-ended
Reflected Type projected
Beam Smoke Detector

I56-3433-00

GENERAL DESCRIpTION
Model SK-Beam/SK-Beam-T is a long range projected beam smoke detector
designed to provide open area protection. It is to be used with uL-listed com-
patible control panels only. The detector consists of a transmitter/receiver unit
and a reflector. Smoke entering the area between the transmitter/receiver and
reflector causes a reduction in signal. When the obscuration reaches alarm
thresholds (chosen at the transmitter/receiver unit), the detector generates
an alarm signal. Complete blockage of the beam causes a trouble signal. Slow
changes in obscuration due to a build up of dirt or dust on the lens of the de-

tector are compensated for by a microcontroller that continuously monitors
the signal strength and periodically updates the alarm and trouble thresh-
olds. When the self-compensation circuit reaches its limit, the detector gen-
erates a trouble signal, indicating the need for service.

Three LEDs on the detector indicate the current status: a red LED for alarm,
a yellow LED for trouble, and a blinking green LED for standby operation.
Note: The panel controls the status of the red and green LEDs. The local
reset button is accessible by removing the outer paintable trim ring. The
yellow LED will blink in specific patterns to provide a diagnostic aid when

12 Clintonville Road, Northford, CT 06472

203.484.7161; Fax: 203.484.7118