سنسور تشخیص دود یونیزاسیون NIS-07

NIS - 07 ion smoke sensors have an ionization chamber, the ion chamber used artificial radioactive element americium 241 (Am241), the intensity of about 0.8 micro Curie, under the normal state is in the balance of the electric field condition, when there is a smoke into the ionization chamber, ionization produced positive and negative ions, interfere with the normal movement of the charged particle, under the action of the electric field, respectively to the positive and negative electrode, destroyed the balance between the internal and external ionization chamber, current, the voltage will change. Ion smoke sensor is through the equivalent resistor voltage changes due to the ionization chamber to perceive micro electric current change device of smoke particles. To macro performance for the equivalent resistance of ionization, the chamber increase causes the voltage at the ends of the ionization chamber, thus determining the status of the smoke in the air.

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Model: Nis-07

Sensor type: Gas induction

Operating temperature: -10-50

Installation type: Plugin

Minimum number of packages: 100pcs

Material number: Nis-07

Application field: Household appliances, security equipment

Response time: 1s

Kind: Gas

Material physical properties: Conductor

Material crystal structure: Single crystal

Hysteresis: 1

Ionization source characteristics and radiation safety performance.

The ionization chamber fitted with a high performance and low activity of Am-241 ionization

Ionization source activity: 0. 5uCi ( 18KBq. 0. 8uCi±10% ( 30KBq±10% )

Ionization source a spectroscopy: peak: 4. 5MeV ± 10%, FW HM<0. 7MeV

Safety grading standards GB4075, IS02919. C64444

Ionization chamber radiation dose rate at 25cm: 0. 03mGy/ ( 1mGy value lower than population does standard )

Conditions: outer electrode and the source electrode voltage ( VDD supply voltage ): 9V

Environment temperature: 20 + C: close to atmospheric pressure standard atmospheric pressure, clean air

Collecting electrode equilibrium potential: 5. 3~6. 5V

Collecting electrode potential with the smoke concentration change

The light reduction rate was 1% feet: 0. 6V

The light reduction rate was 4% feet: 2. 2V

Insulator leakage current ( Max ): 0. 5Pa

Capacitor ( collection of extreme outer electrode + to the source base ): 6. 0pF