Smoke detectorsVISIC50SF, VISIC50SF-1000Brief description: Smoke detector for early fire detection in tunnelsBrief description: With internal heater for correction on fogMeasured values: Visibility (K-value)Communication interface: ModbusCommunication Interface detail: RTU RS-485Analog outputs: 2 outputs:4 ... 20 mA, 500 ΩElectrically isolated; short-circuit proof. Outputs are preset for smoke detection and temperature.Digital outputs: 3 relay contacts:48 V, 0.5 mA, 24 WPreset for failure, limit value and maintenance
Smoke detectors
VISIC50SF, VISIC50SF-1000
Brief description: Smoke detector for early fire detection in tunnels
Brief description: With internal heater for correction on fog
Measured values: Visibility (K-value)
Communication interface: Modbus
Communication Interface detail: RTU RS-485
Analog outputs: 2 outputs:4 ... 20 mA, 500 ΩElectrically isolated; short-circuit proof. Outputs are preset for smoke detection and temperature.
Digital outputs: 3 relay contacts:48 V, 0.5 mA, 24 WPreset for failure, limit value and maintenance
| Description | Smoke detector for early fire detection in tunnels with internal heater for correction on fog | ||||||||||||
| Measured values | Visibility (K-value) | ||||||||||||
| Measurement principles | Scattered light forward | ||||||||||||
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| Response time (t90) | ≤ 5 s | ||||||||||||
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| Conformities | ASTRA "Guideline - Ventilation of Road Tunnels" (2008) RABT 2006 | ||||||||||||
| Electrical safety | CE | ||||||||||||
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| 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 mA, 24 W Preset for failure, limit value and maintenance | ||||||||||||
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| Input | Functional keys | ||||||||||||
| Operation | Via LC-display and function keys | ||||||||||||
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| Material | Stainless steel 1.4571 | ||||||||||||
| Mounting | Wall mount, vertical, wall inclination up to 45° or ceiling mount using an adapter | ||||||||||||
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| Test functions | Contamination monitoring of glass pane Drift and plausibility check Automatic self-test Functional monitoring of the optional heating | ||||||||||||
| Options | Temperature sensor TAD control unit Connection unit Internal heating | ||||||||||||
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