Jwbt858 Explosion Proof Loudspeaker Telephone with Junction Box

JWBT810 Explosion Proof Loudspeaker Telephone with Junction Box
Range

1) Explosion-proof mark: Ex-de [ib] ib II BT6 DIP A20 TA, T6 [EX explosion-proof
   mark, DIP is dust proof mark, do both]
2) Suitable for explosive gas atmospheres Zone 1 and Zone
3) Can be used in explosive gas atmosphere IIA  IIB  IIC* etc rough area
4) Can be used in flammable dust atmosphere 20 zone 21 zone 22zone etc rough area
5) Suitable for T1-T6 temperature classes.
6) Can be used in petrol-extraction,petroleum refining, chemical industry, military
  industry etc dangerous area. Meanwhile, it can be used in offshore platform, oil
  tanker and so on.
7) Can be used in highly noise area especially.
8) China safe explosion proof fancy ip66 defend explosion proof outdoor telephone
  box.
Feature
1) Shell of the explosion-proof telephone made of si-aluminum alloy with high
   temperature ,electrostatic plastic sprayed surface. Good impact resistance.
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.
3) Handle adopts imported Pc engineer material, thermostability of the PTFE
   wire .military noise canceling microphone.Clear conversation in 115 dB
   Environment .
4) Hook adopts magnetic induction switch, life cycle ≥500 thousand. Increased safety
   terminal compartment, to ensure that product's explosion-proof and electrical
   properties.
5) Using integral design faith,integrate basic conversation circuit ,noise removal
  circuit.power amplifying circuit and power circuital protection circuit etc. These
  electronic components of the product adopt famous imported brand and selected by
  high and low temperature aging test.
6) Six channels in a telephone or more are available which according to customer's
   requirement. This telephone network is flexible ,can be setted of its extension set
   arbitrarily , numbers can be changed random . All of telephones connect in a bus
   cables, so it can add or decrease anytime without restriction . Each telephone is
   the independent workstation, if one of them break down,it will not to interfere
   with the overall system work. The system has the automatic gain control,They
   don't change for volume of the sound,length of distance and the quantity of
   telephone in whole system.
7)  It is very easy to be installed and be protected for there is a extra box for more
    cables .

Technical parameter

defend degree	IP 66
EX mark	Exde[ib]ib II BT6 DIP A20 TA,T6
output voltage	AC220V 50Hz
working current	≤0.2A
frenquency respose	250~3000 Hz
ambient temperature	-40~+60°C
atmospheric pressure	80~110KPa
relative humidity	≤95%
amplify output power	10~25W continuosly adjustable
size	343X294X206mm
weight	12Kg
installation	wall-mounted

How to use
1) the caller pick up the handset  Press "*. #" buttons,  group calls start.
2) the caller pick up the handset→ group call: Press the group number, or call the district number set by yourself
3) the caller pick up the handset → single call: dial the phone numbers set by yourself
4) when the called hear the loudspeaker, and pick up the handset , the explosion proof telephone will change to normal call state, and the loudspeaker will turn of  automatically.
5) put the handset back to the telephone, the call ends.
6) The explosion proof  telephone is generally matched with anti-explosion junction box, anti-explosion public-address, anti-explosion amplifier and indoor telephone, all of which we manufactured by ourselves and forming a non-host anti-explosion  public-address communication systems.and the connection schematic diagram is as follow:

7) the systemic function feature:
a.The system has 5 sound amplify group calling lines(A, B, C, D), each line is possible to expand amplifies communication.(It's according to the user's need)
b.The signal uses the balanced pattern transamination, has the automatic gain control, the acoustic fidelity is clear, high fidelity. the power of amplifies could reach as high as 1200W
c. in the line between telephones connection the bus structure is used, all holding wires and join on the bus line. you can add or remove the quantity of telephone without restriction. each the telephone is the independent work station, one of them break down will not interfere with the overall system.
d. the host of system may carry on the call through the telephone and call out to the scene.
e. the system capacity is big, but the gateway of capacity reaches 80, clear acoustic fidelity, high fidelity.
f. a goup calling( when the host id dispatching, it can be connected many users a single line or mufti-line call in the same time)
g. all calling
h. a key to insert and cut
i. Tripartite or more conversation
j. the automatic line conversation
k. when the telephone in the system does not have calls in the normal condition, it will be automatically on hook delay by itself.
l.it sounds different warning through the loud speaker by network by network or manual control.
l. there is no conversation in the systems , it can broadcast CD, MP3, radio through the loudspeaker, and so on.





We have specialized in industrial telephone used for harsh and hazardous environment, like explosionproof telephone, waterproof telephone, jail telephone etc.  If you have any inquiry, please feel free to contact us.   Thank you!