The voltage signal sensor is specially designed for power supply monitoring for fire equipment in accordance with national standard GB28184-2011 "Power supply monitoring system for fire protection equipment". When the power supply for fire protection equipment fails (interruption, overvoltage, undervoltage, phase loss, etc.), the sensor will upload the fault alarm data and measurement data to the fire protection equipment power monitor through the communication interface.

? Meet the requirements defined in the national standard GB28184-2011 "Power supply monitoring system for fire protection equipment".
? Monitor the working status of the main and backup power supplies of fire protection equipment.
? Monitor fault conditions, including overvoltage, undervoltage, and phase loss of the power supply of fire fighting equipment.
? Monitor the interruption of the main and standby power supplies of fire protection equipment.
? Use 24 VDC operating voltage to guarantee system and personal safety.
? Collect voltage signal by direct crimping, with an error less than 1%.
? Two buses are non-polar to reduce cabling costs and avoid the loss caused by incorrect connection.

Models and specifications	TY-DY-3VE	TY-DY-6VE	TY-DY-6VE	TY-DY-9VE
Detection object	One way of three-phase voltage	Two ways of three-phase voltage	Six ways of single-phase voltage	Three ways of three-phase voltage
Rated power	<0.3W
Communication mode	Non-polarity two-bus
Cable specification	NH-RVS-2×2.5mm²
Address code	Each sensor has a unique address code
Ambient temperature	-15℃～55℃
Ambient humidity	Relative humidity ≤ 95%
Altitude	<2000m
IP rating	IP30
Outline dimensions	70×63×85mm (L × W × H)
Status indicators	Blinks during an inspection. The yellow indicator is steadily on when a fault condition occurs.
Operating voltage	Undulating voltage 18 V to 26 V

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