NOTIFIER NRX-TDIFF THERMOVELOCIMETRIC HEAT DETECTOR

The NRX-TDIFF thermovelocimetric heat detector is a battery-powered radio frequency device designed to be used with the NRXI-GATE radio gateway. It contains a transceiver and is integrated into an addressable firefighting system using a proprietary communication protocol. NRX-TDIFF is a thermovelocimetric heat detector with a fixed alarm threshold at 58°C (class A1R).. The sensors must be fixed to the ceiling using the B501RF base. The devices comply with EN54-25 and EN54-5. and meet the requirements of the EN 300 220 and EN 301 489 standards for compliance with the R and TTE Directive. Standby current. 120 μA at 3 VDC. (typical in normal operating mode) Red LED current. 4 mA max. Resynchronization time. 35 s (maximum time from turning on the device to normal RF communication when the network is active) Batteries. 4 Duracell Ultra 123 Battery life. 4 years at 25°C Radio frequency. 865-870 MHz RF output power. 14 dBm (max) range. 500 m (typical in free air) Relative humidity. from 10 percent to 93 percent (without condensation)