High quality KTH series industrial mining explosion proof telephone for sale

High quality KTH series industrial mining explosion proof telephone for sale   

Product Introduction                                                                     

1)This phone shell is made of Aluminium alloy , beautiful outlook, high mechanical strength

2)The domestic new key number plate.

3)Circuit inside the telephone uses the international general integrated circuit, has the advantage of dialing accurate, clear communication, work stability etc

4)Send signals with dual tone frequency and have pulse dialing function (ex-factory general switch in double audio situation)

5)with shockproof, moisture proof, small volume, light weight, strong, durable, easy maintenance, etc.

Technology Parameters                                                        

1) Condition of usage

Environment temperature: -10~40°C

Relative temperature :<=95%(+25°C)

Atmospheric pressure:(86~106)kpa

Related device: HDK coupler

2)Intrinsically safe parameters

3)index electric and audio

Sound grade:  ≥ 80dB

Impulse break-make ratio:1.6±0.2:1

Impulse rate:10±1 times/second

Frequency of double audio

Frequency error<=1.5%

Low frequency group of level :-9dBm±3dB

High frequency group of level :-7dBm±3dB

In the frequency combination, high frequency electrical level should be low frequency electrical level higher about 2±1dB 

The real details photo                                                                    

Good Cooperation                                                                

Transaction history                                                               

 Quality Certificate                                                                  

Transport and Shipping                                                                

welcome to visit our company webiste, Any question,pls contact EVA Shao,

company website: http://luhengmachinery.en.china.cn/

Skype : hw.april

QQ: 2283541257 

Mobile:+8613518655765

Tel : 0086-537-2580308 

Fax : 0086-537-2585538