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INTRINSICALLY SAFE MINING TELEPHONE ATI

An intrinsically safe telephone is intended for voice communication in a hostile environment in which reliability, performance and safety are of paramount importance. Telephone prepared for work in a wide temperature range, resistant to weather conditions, explosion hazard, noise, dustiness, high humidity or mechanical exposure.

ATEX

 II 2G Ex ia IIB T4 Gb

 II 1D Ex ia IIIC T20070°C Da

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Description

The most important functionalities:

  • Possibility to connect to any telephone exchange / server with analogue lines through BSI intrinsically safe barriers
  • Effortless operation over a distance of 10km
  • Easy to find the camera in difficult conditions (intense blinks of the main LED every 6 seconds and backlit emergency button)
  • Possibility of programming 17 speed dial numbers in non-volatile memory
  • Automatic connection to the programmed number after picking up / dropping the handset (programmable time 0-10s.)
  • LCD display for easy operation and programming of the camera
  • Two large buttons on the housing (including one backlit), enabling direct connection to the dispatcher / driver’s station in alarm and ordinary mode
  • Direct connection to the Awizo position (telephone operator position or any other)
  • Programming the telephone (including speed dial numbers and camera parameters) without opening the case – directly from the keyboard
  • Strong sound signal and intensive LED signaling of incoming calls
  • Dustproof and waterproof to IP65
  • Protecting the cable of the microchip with a protective armor
  • Low telephone weight

Features

Parameter name
 Value (unit)
The maximum power supply 45V
Call level min. 90dB from distance 1m
Selection Tone (DTMF),

frequency (FSK) – option
Phone input resistance 800Ω +/- 25%
Phone input impedance 600Ω +/- 25%
Frequency response 300Hz – 3400Hz
Reference attenuation for transmitting -4dB – +4dB
reference attenuation for receive -8dB – +0dB
The intensity of the ringing tone min. 90dB
Electrical insulation strenght 500V
ATEX marking II 2G Ex ia IIB T4 Gb

II 1D Ex ia IIIC T20070°C Da
Ambient temperature range -40 to +60 °C
Permissible humidity (at 60 ° C) 95%
Degree of protection IP65
Weight approx 3,5kg
External dimensions Max. 375×195 (with handset) x 120 mm
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