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Telefoni yopanda madzi--------wothandizira wabwino komanso wothandiza pamakampani
Telefoni yopanda madzi--------wothandizira wabwino komanso wothandiza pamakampani
1. The history of waterproof telephone
From a global point of view, waterproof phones originated in the first half of the last century, and they have not been introduced to China for a long time. Around the 1990s, they entered the country with a number of Japanese aid projects in China. International mainstream manufacturers include Gai-tronics in the United States, FHF in Germany, and leleas in France. From a domestic point of view, the main manufacturers are concentrated in Shenzhen, Ningbo and other regions. At present, Shenzhen Past has several complete sets of waterproof phone molds, providing solutions for various protection levels from IP65-IP67.
Industrial waterproof telephones were initially used inhigh-dust, high-humidity, and high-risk operation scenarios to provide support for emergency and dispatch communications. Later, they were widely used in misewu yayikulu ndi zosiyanasiyana tunnel. Industrial waterproof telephones put forward higher requirements, such asphokoso ndi kuwala alamu,broadcast intercom ndi zina zotero.
2. The technical parameters of waterproof telephone
|
mphamvu Wonjezerani |
Zingwe Zamtambo Zoyatsidwa |
|
Voteji |
24--65 VDC |
|
Yembekezera ntchito Current |
0.2A |
|
Kawirikawiri Yankho |
250~3000 Hz |
|
Ringer Buku |
≥80dB (A) |
|
Kalasi ya Corrosion |
WF1 |
|
Kutentha Kwambiri |
-40~+ 60℃ |
|
Kupanikizika Kwambiri |
80~110KPa |
|
Chinyezi Chamtundu |
≤95% |
|
1-PG11 |
|
|
unsembe |
Wokhazikika pamtondo |
The above sheet shows the technical Parameters of JWAT306 ,tlakeweatherprooftelephone Isverypopulatefortunnels,mIning,marine,underground,metrostations,railwayplatform,highwayside,hotels,pkusanjalots,sgawoplants, Chemical Plants, Power Plants And Related Heavy Duty Industrial Application, Etc.
3. Zambiri Zamalonda
1. aloyi zotayidwa die-casting shell, high mechanical strength and strong impact resistance.
2. StandardAnalogue phone . Komanso ikupezeka muSIP/VOIP ,GSM/3G Baibulo.
3. Heavy Duty handset with hearing Aid compatible receiver,Phokoso loletsa maikolofoni.
4. Weather proof protection to IP66-IP67.
5. Stainless Steel Illuminated Keypad , buttons can be programmed asspeed dial button.
6. Wall mounted , Simple in installation.
7. Phone line powered.
8. Connection: RJ11 screw terminal pair cable.
9. Sound level of ringing :pa 80db.
10. Multiple housings and colors.
11. Malo opangira mafoni odzipangira okha alipo.
12. CE, FCC, ROHS,ISO9001 Zovomerezeka
4. Maonekedwe azinthu
