Industrial telephone

1.industrial telephone suit for arduous and hadzardous. 2.new fashional than others 3.Industrial telephone :IP66 4.EX

1 Range

Can be used in nuclear power plant ,petroleum,chemical plant ,storage and transport industry etc flammable and combustible area .Then user can be communicate in a dangerous area.

2 Feature

2.1 Shell of the explosion-proof telephone made of si-aluminium alloy with high temperature ,electrostatic plastic sprayed surface. good impact resistance.

2.2 The telephone adopt stainless steel keypad, which contact resistance≤30ohm,life cycle≥2 million,push force 160-200grams,defend grade is up to IP67, good hand feeling.

2.3 Handle adopts imported Pc engineer material, thermostability of the PTFE wire .military noise cancelling microphone.Clear conversation in 115 dB enviroment .

2.4 Hook adopts magnetic induction switch, life cycle ≥500 thousand.

Increased safety terminal compartment, to ensure that product’s explosion-proof and electrical properties.

2.5 Using integral design faith,integrate basic conversation  ciruit ,noise removal circuit.power amplifying ciruit and power cicuitand protection circuit etc. These electronic components of the product adopt famous imported brand and selected by high and low temperature aging test.

2.6 The telephone network is flexible ,can be setted of its extension set arbitrarily , numbers can be changed random . it can add or decrease anytime without restriction . Each telephone is the independent workstation, will break down not to interfere with the overall system work.

2.7 Can be set function of amplification call directly or after sevral ring ( 1 to 7 voice can be set ) ,or more ring (it can be ring according to the offer of the exchange)This system with  function of general calling (hundreds reponse to a single call ).

3.Technical parameter
Ambient temperature	-20~+40°C
Defend grade	IP66
Relative humidity	≤95%
Atmospheric pressure	80~106KPa
Call effective distance	6Km
Anti-explosion grade	Exde[ib]ibIIBT6,Exde[ib]ibIICT6,
Output voltage	AC220V±15%,50Hz.
Signal voltage	DC48V(45~57V)
Wait,working current	20mA,≤50mA
Frequency response	250~7500 Hz
Lines output audio signal level	+2dB
Loop cicuit impedance	1KΩ
Amplify output power	0~25WContinuously adjustable
Noise cancelling index	115dB enviroment