Tyco FlameVision FV300 SERIES - Detector Interfaces and Electrical Specs

SYSTEM DESIGN INFORMATION
11
4.1 ELECTRICAL CHARACTERISTICS
4.1.1 GENERAL
Supply voltage: 20V to 30V dc
Power: up to 10W (depending on model)
Quiescent current:
- no camera fitted: 158mA at 24V
- with camera: 196mA at 24V
Alarm current:
- no camera fitted: 166mA at 24V
- with camera: 205mA at 24V
Additional current when using 4 to 20 mA output in source mode
- Quiescent: 4.0mA at 24V
- Alarm: 11.5mA at 24V
Window heater additional current: V
Supply
÷ 270Ω (90mΑ at 24V)
Stabilisation time after power up: 5 - 20 minutes
4.1.2 RELAY CONTACT OUTPUTS
Fault relay: Selectable normally closed or open contact.
Alarm relay: Selectable normally closed or open contact.
Alarm relay coil monitoring: Supplied as standard.
Contact rating: 2A at 30V dc
4.1.3 4 to 20 mA OUTPUT
Signalling currents: Nominal Range
General fault: 0mA (0.0 to 0.7mA)
Window dirty: 2mA (1 to 3mA)
Normal: 4.5mA (3.5 to 5.5mA)
Pre-alarm: 11.5mA (10 to 13mA)
Alarm: 17mA (15 to 19mA)
Maximum current monitor resistance
in source mode: 150Ω
Output mode: Selectable current sink or current source output (SW2).
4-20mA SINK MODE
24V
7.7V
DETECTOR
R
MONITOR
100R
R
MONITOR
100R-390R
7.7V
DETECTOR
R
MONITOR
100R
R
MONITOR
100R-120R
0V
4-20mA SOURCE MODE
4-20mA OUTPUT
4-20mA OUTPUT
Fig. 7 4-20mA Current Sink/Source Wiring Diagrams
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