??212-54T-?? "DIP-54T-??" smoke detectors opto-electronic point smoke detectors

Wire point detector is designed to detect fires accompanied by smoke. The design of the detector provides shielding of the optical chamber fine-mesh mesh mesh and a mechanical device to monitor performance. The detectors are connected to the control panels using a two-wire signalling loop (hereinafter referred to as the loop). The trigger signal of the detector ??212-54T is formed by discrete reduction of voltage at the detector (in the loop) due to a sharp increase in current consumption and its limitation by an external device (circuit of the control panel). Detectors ??212-54T-?? provide a fixed value of the operating current with a nominal value (in mA), specified in the designation in the form of the last two digits (5,0; 5,5; 6,0; 6,5; 7,0; 7,5; 8,0; 8,5; 9,0; 9,5; 10; 11; 12; 12; 13; 14; 15; 16; 16; 17; 18; 19; 20; 22; 30).