Product Profile:
The alarm adopts vertical single ring wheel, sound tube and sound barrier board structure.YSeries aluminium alloy motors, fixed wheels and ringing wheels are all cast aluminium alloy, light weight, good oxidation resistance.
Product Overview:
According to the characteristics that alarms are installed at high altitudes, our factory corrects them on the basis of the original products and adds the following functions:
(1) Self-closing function of sound window;
(2) A stainless steel mesh cover was added to the sound tube;
(3) The sound barrier board is made of stainless steel.
This improvement makes the alarm more resistant to sand, bird's nest intrusion and acid rain corrosion, thus enhancing the reliability and service life of the alarm. The alarm can be widely used in the alarm system of cities and key enterprises in China, as well as in the fire alarm of factories, mines, construction sites, forest farms, flood control of wharfs, reservoirs and prisons.
Technical parameters:
| Specifications | JDL400type | JDL480type |
| Rated power | 2.2KW | 4KW |
| Power Supply | 380V/220V(Single-phase) | 380V |
| Rated speed | 2900turn/branch | 2900turn/branch |
| Average sound pressure level（ASound level) | ≥120dB（5Rice Department) | ≥127dB（5Rice Department) |
| frequency | 480-1460Hz | 480-1460Hz |
| Electric power | ≥17% | ≥17.5% |
| Start-up time | ≤4S | ≤4S |
| weight | 50kg | 82kg |