TPWX2GD/TPWX2GDI/TPW20IEX2GD 6
FIX THE LOAD ON THE PALLET, AS SHOWN IN THE DRAWING
4. DESCRIPTION of the SYSTEM
The Atex assemblies
TPWX2GD
/
TPWX2GDI/TPW20IEX2GD
are devices for hazardous areas having presence of gas
and/or inflammable dust, designed and made according to the ATEX 2014/34/EU directive, group II category 2GD
according to the
IEC/EN 60079-0, IEC/EN 60079-11, IEC/EN 60079-31, EN 1127-1, EN 13463-1 and EN 13463-5. The protection mode of
the electronic weighing terminal (DFWATEX2GD) is Ex ib [ib Gb] IIC T4 and Ex tb [ib Db] IIIC T197°C IP65.
The weighing terminal is made up of a metallic case, which contains the various intrinsically safe electronic circuits:
DFWATEX2GD terminal, stand alone application with IP68 protection (TPWX2GD);
The weighing terminal is fitted with a CPU, LCD display, membrane keyboard and separate power supply unit, made up of
a Ni-MH battery or a power adapter, which has a separate ATEX certification.
The terminal provides for a connection to load cells (strain gauges – simple apparatus or intrinsically safe load cells, which
have a separate ATEX certification) / digital signals / electronic level - simple apparatus. A fibre optic connection for the
interfacing of devices in a safe zone is also provided for.
The metallic structure parts are electrically connected and a sliding chain is provided for its grounding.
5. SAFETY DATA / PLATE PARAMETERS
The power supply of the Atex assemblies TPWX2GD/TPWX2GDI/TPW20IEX2GD is provided with battery (See the
“DFWATEX2GD” atex weight indicator manual):
DFWBP76ATEX battery pack, Ni-MH, Vn = 9,6 V, 7600 mAh
Intrinsically safe circuits
See the “DFWATEX2GD” Atex weight indicator manual.
