VDOT-ASD-400 Aspiration Detector
Velocity Detection
6
VDOT-ASD-400 Aspirating Smoke Detector User’s Manual V1
Alarm Levels and Time Delay
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Alert (0~60 sec.)
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Action (0~60 sec.)
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Fire-1 (0~60 sec.)
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Fire-2 (0~60 sec.)
Environment Smoke Learning
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24hours, 365days Non-Stop Smoke Background Level Learning
Flow Detection
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Detection Principle: Heat Mass Detection
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Pipe Flow Normalize to 100%
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Flow High and Flow Low Fault
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Adjustable Flow Detection Sensitivity
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Adjustable Flow Fault Threshold
Relay Output
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7 Relays on Termination Board (Configurable)
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Rating: 2A@30 VDC
General Purpose Inputs
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8xGPIs (Configurable)
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GPI Functions: RESET/ISOLATE/SILENCE/TEST/MAINS FAULT/BATT. FAULT/POWER
FAULT/SENSITIVITY MODE 1/SENSITIVITY MODE 2/SCAN/UDI-1/UDI-2/UDI-4/UDI-5
*Note: UDI, User Defined Input
Communication
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RS-485 Network
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Maximum number of devices on Network: 250
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Built in repeater
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Maximum cable length between two adjacent devices: 1.2km
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Support Modbus RTU open protocol
Control
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<Reset>, <Isolate>, <Silence> & <Test> buttons
