Fire detection sensor in tunnels VISIC50SF

VISIC50SF System

• Measured values: Visibility (K-value)
• Measurement principles: Scattered light forward
• Measuring ranges:

Visibility (K-value): 0 … 150 km⁻¹

Temperature measurement (option): –30 … +70 °C

• Response time (t90): ≤ 5 s
• Resolution Visibility (K-value): 1 km⁻¹
• Repeatability: 1 %: of measuring range full scale
• Ambient temperature: –20 °C … +55 °C
• Storage temperature: –30 °C … +85 °C (Measuring device)
• Ambient pressure: 860 hPa … 1,080 hPa
• Ambient humidity: 10 % … 100 %; Relative humidity; non-condensing
• Conformities

ASTRA “Guideline – Fire Detection in Road Tunnels” (2007)

RABT 2006

Electrical safety CE

Test functions

Contamination monitoring of glass pane

Drift and plausibility check

Automatic self-test

Functional monitoring of the optional heating

• Options: Internal heating/ Connection unit/ TAD control unit/ Temperature sensor

VISIC50SF sensor unit

• Description: Analyzer unit of the measuring system
• Electrical safety: CE
• Enclosure rating: IP66/ IP6K9K
• Analog outputs: 2 outputs, 4 … 20 mA, + 500 Ω; Electrically isolated; short-circuit proof. Outputs are preset for smoke detection and temperature.
• Digital outputs: 3 relay contacts; + 48 V, 0.5 A, 24 W; Preset for failure, limit value and maintenance
• Communication interface:

Modbus

PROFIBUS DP

Remark: Not available when a TAD is used, Option

• Type of fieldbus integration: RTU RS-485
• Number: 1
• Indication: LC display, inside
• Status LEDs: “Operational”, “Maintenance required”, and “Fault”
• Input: Functional keys
• Operation: Via LC-display and function keys
• Dimensions (W x H x D): 266 mm x 159 mm x 117 mm (for details see dimensional drawings)
• Weight: 2.8 kg
• Material: Stainless steel 1.4571
• Mounting: Wall mount, vertical, wall inclination up to 45° or ceiling mount using an adapter
• Power supply

Voltage: 18 … 28 V DC

Voltage: Other voltages with optional connecting unit or TAD control unit

Current consumption: ≤ 1 A

Power consumption (Without heating): ≤ 5 W

With heating: ≤ 20 W

TAD control unit

• Description” Remote controll with integrated display and additional I/Os
• Electrical safety: CE
• Enclosure rating: IP66
• Analog outputs: 4 outputs (option), 4 … 20 mA, + 500 Ω; Electrically isolated
• Digital outputs: 3 outputs (option), + 125 V AC, 0.6 A / 30 V DC, 2 A
• Digital inputs: 1 input (option), + 30 V DC
• Dimensions (W x H x D): 210 mm x 347 mm x 129 mm (for details see dimensional drawings)
• Weight: 5 kg
• Material: Stainless steel 1.4571
• Power supply

Voltage: 88 … 264 V AC

Frequency: 47 … 63 Hz

Power consumption: ≤ 15 W

VISIC50SF connecting unit

• Description: Serves for connection of power supply, data and signal cabling provided by the customer
• Electrical safety: CE
• Enclosure rating: IP6K9K
• Dimensions (W x H x D): 266 mm x 238 mm x 146 mm (for details see dimensional drawings)
• Weight: 2.8 kg
• Material: Stainless steel 1.4571
• Power supply

Voltage: 85 … 264 V AC

Frequency: 45 … 65 Hz

Current consumption: ≤ 0.1 A