| 摘要 |
Thermal fire signaling device relates to area of fire signalization and can be used I systems of fire signalization for reveal of increase of temperature of environment higher than set threshold value. Thermal fire signaling device includes luminodiode indicator, six resistors, three capacitors, two diodes, two transistors, two input terminals and thermal element in which thermal element with normally closed contacts is connected to second input terminal. In thermal fire signaling device proposed due to use of other connection of elements to base of first transistor possibility is provided for use of thermal element with normally closed contacts as most reliable sensor. |
