Type KTH18 intrinsically safe automatic telephone

Introduction of KTH18 intrinsically safe automatic telephone

Type KTH18 intrinsically safe automatic telephone set, used in conjunction with KTA17 telephone coupler in underground coal mines or other high temperature, high humidity, heavy pollution working environment.

Technical parameters of KTH18 intrinsically safe automatic telephone

Maximum input DC voltage: ≤60V

Maximum input DC current: ≤34mA

Maximum input fluid voltage: ≤ 60V, frequency: (25±3) Hz

Maximum input fluid current: ≤38mA

Ringing loudness: ≥90dB(A) (connected to KTA17 safety coupler and 10km mine simulation subscriber line, tested at 1 meter away from the telephone)

The maximum communication distance is 10km

Device context: KTA17 safety coupler

Dialing mode: P/T compatible

Structure: Hanging type

Feeding voltage: 44V-60V

Size: 357*190*127mm

Weight: 3.5 KG

Characteristics of KTH18 intrinsically safe automatic telephone

The shell of the phone is made of anti-static material, waterproof, dustproof and anticorrosion, with the protection grade up to IP65, suitable for extremely harsh environment.

Wall mounted installation, using newly developed fork spring switch mechanism, no movable parts on the telephone.

The keyboard is fully sealed with light touch keys, sound and light display of bell flow call, and equipped with emergency call, hang up and redial keys.

It is equipped with a call distance gain adjusting switch, which can adjust the receiving call gain according to the distance between the telephone and the dispatching switchboard. It is suitable for the condition of long call distance and poor line insulation in underground coal mine.

The telephone as a wall-mounted installation, convenient to carry, the design is novel, the shell made of antistatic materials waterproof, dustproof and anti-corrosion, protection grade reaches IP65, apply to the extremely harsh environment, the keyboard is fully sealed with luminescent light touch key, fluid flow call sound and light show, and is equipped with emergency call, hang up and redial key, in the absence of light can still work normally in the environment. It is equipped with a telephony distance gain adjusting switch, which can adjust the telephony gain according to the distance between the telephone and the dispatching switchboard. It is suitable for long telephony distance, poor line insulation and long communication distance in underground coal mine

Physical picture of KTH18 intrinsically safe automatic telephone set