Intrinsic Safety (IS) is a protection technique for safe
operation of electrical equipment in hazardous areas.
is realized by limiting the energy available for ignition.
ia is the most strict explosion-proof standard of Intrinsic
Safety, which allows PT790 Ex to work in various kinds of
hazardous and harsh places, even those containing explosive
mixed gas and dust.
In mining industry, methane and mine
powder is the main risk. PT790Ex can achieve M1 protection
level, which ensures security in mining environment
Whether on an oil rig, in a coal-mine, a gas station or any
other potentially explosive environments, safe and reliable
communications are on top of everything. Hytera deeply
understands the challenges for our users in hazardous and
In order to meet the increasing
requirements for intrinsically safety and reliable
communication, Hytera brings you PT790 Ex, the first ia
explosion-proof TETRA radio in the world.
PT790Ex, TETRA Intrinsically Safe Portable, is designed to
comply with the highest grade "ia."
PT790Ex works in
places which contains a variety of explosive gas, even mine
methane, for example, coal mine, gas stations, oil
platforms, chemical plants, flour mills, airport and other
inflammable or explosive conditions, etc.
by the antenna, channel knob and volume knob stand apart
from each other. The design of their different sizes
enhances the accuracy of operation, and greatly reduces
incorrect operation with gloves or in dark environment.
PT790EX's compact and large textured keys provide an
excellent tactile feeling.
Innovative Ergonomic Design:
Hytera PT790Ex provides 1.8-Inch, 65536-color, LCD screen,
which can be clearly displayed under bright sunlight. As
many as 20 programmable keys are flexibly configurable for
quick access through one button operation.
Interface: Hytera PT790EX provides 1800mAh/2400mAh large
capacity Li-ion battery, which can last for more than 20
hours under 5-5-90 duty cycle. Strict overcharge and
overdischarge protection design ensure the battery against
instability caused by overheating. In addition, the battery
cells are also encapsulated to redistribute single point
heat buildup and prevent air discharge as well.
PT790Ex has a globally patented industrial design with an
antenna in the middle position, providing omnidirectional
antenna pattern for better signal coverage. The antenna used
in PT790Ex is a patented design which is short in length and
having GPS integrated.
*See PDF download for