Instruction Manual ET-xx8 / MT-xx8 Intended use
R. STAHL HMI Systems GmbH / OI_ET_MT-xx8_en_V_01_01_11.docx / 05.04.2019 Page 5 of 44
1 Intended use
The HMIs of the xx8 SERIES - device platform SHARK - are explosion-proof equipment for
installation in hazardous areas. They are designed for operation, visualization and processes
control in these areas. Whilst the ET-xx8 devices can be installed in zones 1, 2, 21 and 22 (EPL
Gb, Db) according to ATEX directive, IEC and Canadian requirement as well as Class I,
Zone 1 & 2; Class I, Division 2; Zone 21 & 22; and Class II, Division 2 for the US. The MT-xx8
devices are suitable for installation in zones 2 and 22 (EPL Gc, Dc) according to ATEX
directive, IEC and Canadian requirement as well as Class I, Zone 2, Class I, Division 2, Zone 22
and Class II, Division 2 for the US.
All devices have a modular structure, which makes changes and maintenance easy.
The HMIs of the xx8 SERIES consist of a display and an E-Box module which are mounted
together. The display module mostly covers the display (available in different sizes) and the
E-Box module mostly covers the electronic.
The connection of external cables is realized via an integrated connection compartments for
Ex e / Ex nA and Ex ia circuits.
1.1 Image sticking
Continuous displaying fixed pattern may include image sticking. It’s recommended to use
screen saver or moving content periodically if fixed pattern is displayed on the screen.
2 Marking
2.1 Type code
a-*b8-c-d-e-f-g-h*
any alphanumeric or symbolic characters, without relevance
for explosion protection
OptionBox version
RFID version
Bluetooth version
Wireless version
Power supply version
Ethernet interface
Family code (fixed to 8)
Display size code
any alphanumeric or symbolic characters, without relevance
for explosion protection
Zone declaration
