RADWAG PUE C indicator - Manual (Page 6)

EXI-01-04-06-14-GB - 6 -
2.
SECURITY REQUIREMENTS
Please read this manual carefully prior the first usage. Following the
instruction, use the device as intended;
PUE C/31H/EX indicator, and scales with design based on the indicator,
can be used in explosive zone 1 and 2 where there is a mixtures of gases,
vapours and mists of II (second) explosion group and T1, T2, T3 or T4
temperature class.
WPT………/EX and WTC………/EX scales, because of the construction of
non-electric part of the platform and used materials, can be operated in 1
and 2 zone where there are mixtures of gases, vapours and mists of IIA,
IIB, or IIC group – according to „Technical Documentation” of the scale.
Anti-explosive safety of the PUE C/31H/EX indicator, and of scales
with design based on the indicator is assured by:
• Power supplied from the ZRi02 power supplier
II (2) G [Ex
ib] IIC KDB 06ATEX251 manufactured by RADWAG, placed
behind the hazardous area or from another adapter with
appropriate parameters of intrinsically safe electrical circuit.
• Intrinsically safe design of PUE C/31H/EX indicator complying
with:
EN 60079-0 and EN 60079-11 standards, confirmed by
KDB 06ATEX250 certificate
• Using load cells certified for conformity with ATEX directive (on
anti-explosion safety)
• Making non-electric parts pf the scale in compliance with EN
13463-1 standard
• Observing recommendations in this manual by users
- marking of paragraphs crucial for anti-explosion safety