STANDARD FEATURES
• Low Profile - Only 2.0" High.
• 2 or 4 Wire Models
• Highly Stable Operation, RF/Transient Protection
• Two built-in power/sensitivity supervision/alarm LED's
• Non-Directional Smoke Chamber
• Vandal Resistant Security Locking Feature
• Removable smoke labyrinth for cleaning or
replacement
• Automatic Sensitivity window verification function
meets outlined requirements in NFPA 72,
Inspection,Testing and Maintenance.
APPLICATION
The HOCHIKI America SLR-835B Series can be used
in all areas where Photoelectric Smoke Detectors are
required. It is suited for smoldering or flaming fires.
OPERATION
The SLR-835B Series photoelectric smoke detector
utilizes two bicolored LEDs for indication of status. In a
normal standby condition the LEDs flash Green every 3
seconds. When the detector senses that its sensitivity
has drifted outside the UL listed sensitivity window the
LEDs will flash Red every 3 seconds. When the detector
senses smoke and goes into alarm the status LEDs
will latch on Red.
The unit is comprised of an LED light source and silicon
photo diode receiving element. In a normal standby
condition, the receiving element receives no light from
pulsing light source. In the event of fire, smoke enters
the detector and light is reflected from the smoke
particles to the receiving element. The light received is
converted to an electronic signal. Signals are processed
SPECIFICATIONS
Light Source: GaAlAs Infrared LED
Voltage: Nominal: 12 VDC or 24 VDC
Working: 8.0 - 35.0 VDC (35.0 VDC Max)
Wave Form: Filtered DC 15% Ripple Max.
Alarm Current: 150mA Maximum
Surge Current: 200μA Maximum (2 wire)
Average Stand-By 38μA AVG @12 VDC
Current: 55μA AVG @24 VDC 70μA AVG @35 VDC
Ambient Temperature: 32° F - 120° F (0° C - 49° C)
Sensitivity Test Feature: Automatic Sensitivity Window Verification Test
Compatibility Identifier: HD-6
Order Codes: 2-Wire Detector & Trim Ring
Bone: SLR-835B-2
White: SLR-835B-2W
4-Wire Detector & Trim Ring