Technology Specifications Ionization Ventricle
1. Single-source, double-ventricle structure designed by computer
2. Under similar atmosphere condition, in the clean air, the voltage between dustcoat and base electrode is nine
Voltage, the voltage of collection electrode should be kept 4.6~6 V and appropriate to other electric potential.
3. Safe radiation: Single-source, low activity, safety classification reaches up to C64444.
4. Adopts stainless steel, high function plastics, metal palladium, americium-241 and other materials highly resistant to rots
5. The bracket of the ionization ventricle basement and cavity are applicable to being installed on the top of the component IC, interface of component IC (typical circuit MC14467) is adjacent to the collection joint and easy to solder. All the soldering points should be smeared soldering tin in advance, convenient for installation.
Work principle ionization ventricle:
Ion ventricle can be classified into internal ion ventricle (reference ionization ventricle) and external ventricle (testionization ventricle), and their ionization radiations are provided by the same source. Under certain voltage, the internaland external ion ventricles are at a balance of the work electric current. Refer to Figure 1, point A is the electric currentbalance point of ionization in the clean air. While Figure 2 denotes that balance point moves to the point A’ after enteringsmoke, the movement from point A to point A’ leads to the change of the balance voltage of the collection electrode andthe change is enough to trigger alarm circuit to realize the destination of fire alarm.
Main specifications of ionization ventricle:
The balance voltage Un (9V) of the collection electrode: 4.7-5.3V
The density of smoke Y(UN change under 1.5): 0.7-1.5V
Work electric current of ion ventricle: 10-11-10-12A
Activity of 241-Am-a: 0.7-0.8μCi
Resistance of electrode direction insulation: >1013Ω
Electric capacity: ~48F
Maximum diameter: Φ38mm
Height: 20mm
Diagrammatic sketch of connection
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