OPSZ-2-485 (RO ASPZ) “Fire” Mine Combined Fire Alarm Device, visual-audible type, special explosion-proof

The OPSZ-2-485 (RO ASPZ) is intended for use as a warning light and sound signaling device, as well as an information display panel with corresponding inscriptions. It is designed to provide visual and audible alerts upon receipt of an activation signal.

General characteristics:

Explosion protection marking	PO Ex ia I Ma
Operating temperature, °C	from −20 to +60
Ingress protection rating	IP65
Protection class (electric shock)	III
Nominal DC supply voltage, V	12
Power consumption in alarm mode, W, not more than	1.5
Power consumption in standby mode, W, not more than	0.06
Sound pressure level at a distance of (1.00±0.05) m, dB, not less than	85
Frequency of generated sound signal at a distance of (1.00±0.05) m, Hz	from 200 to 5000
Flashing frequency, Hz	from 0.5 to 2.0
Connection interfaces	RS-485 – 1 pc.
Overall dimensions, mm	510×210×55
Mass, kg, not more than	3.6

Application area

Underground workings of coal and ore mines and their surface structures, including those hazardous due to gas and dust, in accordance with the explosion-protection marking, operating conditions, and the requirements of the applicable industry Safety Rules.