Dini Argeo TPW20IEX2GD Istruzioni per la sicurezza - Pagina 6

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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.

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.

TPWX2GD/TPWX2GDI/TPW20IEX2GD