Various sensor products

NIS|09C

NIS-09C is an ionization type smoke sensor containing a tiny amount of 241Am radioisotope, however, the sensor itself is fully covered by metallic housing so that no radiation leaks outside of the sensor.


Structure

Ratings

Items Specifications
Supply voltage Less than DC 7 ~ 12V
Current 27 } 3pA
Radiation source Americium-241, 33.3KBq
Ambient temp. 0 ~ 50oC
Ambient humidity Less than 95“ RH

Characteristics

Items Specifications
Output in clean air 5.6 } 0.4V
Smoke sensitivity
2“/foot Cotton thread
0.6 } 0.1V


Recommended circuit



Remarks) The IC appeared in the above circuit, MC14466 may not be on the market any more. Compatible ICs will be MC14468, A5367, and A5368 etc.