描述
ARD421
Vibration Detector
ARD421 屬大華防盜警報產品。傑成系統有限公司（香港防盜）為大華產品安裝商及經銷商，可提供供應、安裝、調試、保養及維修。方案可參考防盜系統。規格以原廠資料為準。
規格
Port
| Alarm Output | Connects to 1 channel (dry contact, max potential of 12 VDC and 0.11 A) |
|---|
Function
| Indicator Light | One two-color LED indicator |
|---|---|
| Tamper | Yes |
Technical
| Sensor | Piezoelectric ceramics sensor and temperature sensor |
|---|---|
| Detection Mode | Detection of mechanical vibrations and temperatures |
| Sensitivity | 5 adjustable sensitivity levels |
| Detection Range | Concrete: Alarms are triggered when vibrations reach a depth of 2 to 8 m from impact drivers or other objects striking the area. For other objects, they have to hit the area 5 times first. Explosions immediately trigger alarms. Steel plate: Alarms are triggered when vibrations reach a depth of 1 to 10 m from impact drivers, and a depth of 1 to 12 m when other objects strike the area at least 5 times. Explosions immediately trigger alarms. |
| Relay | The default is normally closed |
| Operating Current | 18 mA |
| Alarm Current | 15 mA |
General
| Power Supply | 9–15 VDC |
|---|---|
| Power Consumption | ≤1.2 W |
| Operating Temperature | –25 °C to 55 °C (–13 °F to 131 °F) |
| Operating Humidity | 0%–95% (RH), non-condensing |
| Product Dimensions | 85 mm × 37 mm × 28 mm (3.35" × 1.46" × 1.10") (L × W × H) |
| Net Weight | 395 g (0.87 lb) |
| Gross Weight | 436 g (0.96 lb) |
| Installation | Wall mount |
| Casing Material | Zinc–aluminum alloy |
| Certifications | CE |
| Anti-corrosion Level | Basic Protection |
| Storage Temperature | –40 °C to 70 °C (–40 °F to 158 °F) |
| Storage Humidity | 0%–95% (RH), non-condensing |
| Packaging Dimensions | 106 mm × 100 mm × 41 mm (4.17" × 3.94" × 1.61") (L × W × H) |
