1. Model: NAP-07 Ion Chamber Smoke Sensor 2. Diameter: 37mm
Parameter: 1. Ionization source characteristics and radiation safety performance: 2. The ionization chamber fitted with a high performance and low activity of Am-241 ionization 3. Ionization source activity: 0. 5uCi ( 18KBq . 0. 8uCi±10% ( 30KBq±10% ) 4. Ionization source a spectroscopy: peak: 4. 5MeV ± 10%, FW HM<0. 7MeV 5. Safety grading standards ( GB4075, IS02919 . C64444 6. Ionization chamber radiation dose rate at 25cm: 0. 03mGy/ ( 1mGy value lower than population dose standard ) 8. Conditions: outer electrode and the source electrode voltage ( VDD supply voltage ): 9V 9. Environment temperature: 20 + C: close to atmospheric pressure standard atmospheric pressure, clean air 10. Collecting electrode equilibrium potential: 5. 3~6. 5V 11. Collecting electrode potential with the smoke concentration change 12. Light reduction rate was 1% feet: 0. 6V 13. Light reduction rate was 4% feet: 2. 2V 14. Insulator leakage current ( Max ): 0. 5Pa 16. Capacitor ( collection of extreme outer electrode + to the source base ): 6. 0pF
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