Technical Specifications:

• Sound Output: Continuous tone, 105 dB(A) at 1 meter
• Adjustable Volume: 85 dB / 95 dB / 105 dB (DIP switch selectable)
• LED Beacon: Red, rotating, visible up to 500 meters
• Alarm Inputs: 4 dry contact inputs (24 V DC compatible)
• Power Supply: 24 V DC (18–30 V DC)
• Current Consumption: 280 mA (typical, continuous tone + LED)
• Protection Rating: IP66/IP67 (NEMA 4X)
• Certification: Ex ia IIC T6 Ga (Intrinsically Safe), ATEX, IECEx, FM, CSA
• Operating Temperature: -40°C to +70°C
• Dimensions: 210 × 210 × 180 mm (W × H × D)
• Weight: Approximately 3.2 kg
• Mounting: Wall mount (standard)

Functional Features:

• 4 independent alarm channels
• Each channel triggers continuous tone + LED activation
• DIP switch configuration for volume and alarm behavior
• Test button for local functional verification
• Manual reset capability

Performance Parameters:

• Intrinsic Safety: Ui = 28 V, Ii = 93 mA, Pi = 0.65 W, Ci = 0.04 µF, Li = 0 mH
• Sound Frequency: 500 Hz to 3000 Hz (broadband)
• LED Flash Rate: 1 Hz (fixed)
• IK Rating: IK10

Material Composition:

• Enclosure: GRP (glass-fiber reinforced polyester) with UV-resistant gel coat
• Lens: UV-stabilized polycarbonate
• Internal components: Conformal-coated PCB
• Cable gland: Nickel-plated brass with EPDM seal

Structural Features:

• Compact wall-mount design
• Front-facing speaker grille
• Top-mounted rotating LED beacon
• Side-mounted DIP switches for configuration
• Stainless steel mounting flange

Working Principle:
A dry contact closure on any of the 4 alarm inputs triggers the internal controller. The controller activates the audio amplifier, which drives the speaker to produce a continuous 105 dB tone. The LED driver circuit simultaneously activates the rotating red beacon. The system draws power from a 24 V DC loop. The alarm remains active until the input contact opens or a manual reset is performed.

Advantages & Highlights:

• High 105 dB output ensures audibility in noisy environments
• Continuous tone provides unambiguous alarm indication
• IP66/IP67 rating for outdoor and washdown use
• Intrinsically safe for Zone 0, 1, and 2 installation
• Simple DIP switch configuration — no software required

Applicable Industries:

• Oil and gas production facilities
• Chemical plants
• Power stations
• Water treatment plants
• Offshore platforms

Installation Requirements:

• Mount on a vertical surface at 2.0–3.5 m height
• Ensure unobstructed 360° visibility of the LED beacon
• Use certified cable glands for hazardous area wiring
• Connect to a 24 V DC intrinsically safe barrier if required
• Verify alarm input wiring (normally open or normally closed) matches the DCS logic

Usage Precautions:

• Test the alarm monthly using the front-panel test button
• Do not exceed 30 V DC on any input terminal
• Do not block the speaker grille or LED lens
• Replace the unit if the sound output drops below specified levels
• Do not open the enclosure in a classified area