Signal flash light with horn SBH-ia/PV is intended for use in mining applications. It is used as audio-visual warning device in case of danger. SBH-ia/PV is made of certificated intrinsically safe flashlight with horn SBH-ia/MPS, which is mounted in inox enclosure IP55. There are PCB with optocouplers for galvanic isolation control devices and input/output connection terminals. Connection terminals are connected parallel – this enables to connect devices in series. PCB contains two switches SW1 and SW2 for selection type of connected devices.
SW1-SW2 are in ON position: Device is supplied and controlled by the same intrinsically safe source.
SW1-SW2 are in OFF position: Device is supplied and controlled by several intrinsically safe sources.
SBH-ia/PV is designed to meet certification marking: I M1 Ex ia op is I Ma
The device is designed in accordance to following standards:
EN 60079-0: 2018 ; Explosive atmospheres - Part 0: Equipment - General requirments
EN 60079-11: 2012 ; Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
EN 60079-28: 2015 ; Explosive atmospheres - Part 28: Protection of equipment and transmission systems using optical radiation
EN 50303: 2000 ; Group I, Category M1 equipment intended to remain functional in atmospheres endangered by firedamp and/or coal dust
Supply voltage:
12 – 16 VDC (I.S.)
Current consumption:
30 mA
Control current consumption:
2 mA - 4 mA
Max. amb. temperature:
-20 °C do +50 °C
Ingress protection:
IP55
Humidity:
0 ... 95 % RH, non-condensing
Weight:
~ 2,7 kg
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