The voltage/current 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, overload, 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%.

Models and specifications	TY-DY-3V3A	TY-DY-3V6A	TY-DY-6V3A	TY-DY-9V	TY-DY-D6V
	One way of three-phase current / One way of three-phase voltage	Two ways of three-phase current / one way of three-phase voltage	One way of three-phase current / two ways of three-phase voltage	Three ways of three-phase voltage	Six ways of single-phase voltage
Monitoring objects	<0.4W
Rated power	Non-polarity two-bus
Communication mode	NH-RVS-2×2.5 mm²
Cable specification	Each sensor has a unique address code
Address code	Undervoltage < 85% of rated voltage, overvoltage > 110% of rated voltage,overcurrent O-1000 A, user defined
Ambient temperature	-15℃～55℃
Ambient humidity	Relative humidity ≤ 95%
Altitude	<2000m
IP rating	IP30
Outline dimensions	70×63×85mm (W × D × H)
Installation method	Standard 35 mm rail-mounted/surface-mounted with screws