Emerson Rosemount 248 Quick Start Manual page 24

Quick Start Guide
7.8.2 I2 Intrinsic Safety
Certificate UL-BR 19.0202X
Standards ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-11:2013
Markings
Special Condition for Safe Use (X):
The equipment, if supplied without an enclosure, must be installed in an
enclosure which affords it a degree of protection of at least IP20. Non-
metallic enclosures must have a surface resistance of less than 1G Ω; light
alloy or zirconium enclosures must be protected from impact and friction
when installed if located in a Zone 0 environment (areas that required EPL
Ga).
7.8.3 N2 Brazil Zone2
Certificate UL-BR 19.0203X
Standards ABNT NBR IEC 60079-0:2013, ABNT NBR IEC 60079-15:2012
Markings
Special Condition for Safe Use (X):
The equipment, if supplied without an enclosure, must be installed in a
suitably certified enclosure such that it is afforded a degree of protection of
at least IP54 in accordance with ABNT NBR IEC 60529 and ABNT NBR IEC
60079-15 and be located in an area of pollution degree 2 or better as
defined in IEC 60664-1.
7.9 China
7.9.1 E3 NEPSI Flameproof
Certificate GYJ16.1335X
Standards GB3836.1-2010, GB3836.2-2010
Markings
产品安全使用特殊条件
•
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Ex ia IIC T5 Ga (-60 °C ≤ T
Ex ia IIC T6 Ga (-60 °C ≤ T
See Table 7-3 at the end of the product certifications section
for entity parameters.
Ex nA IIC T5 Gc (-60 °C ≤ T
Ex nA IIC T6 Gc (-60 °C ≤ T
Ex d IIC T6~T1 Gb: T6...T1(-50 °C ≤ T
≤ T ≤ +60 °C)
a
≤ +80 °C)
a
≤ +60 °C)
a
≤ +80 °C)
a
≤ +60 °C)
a
≤ +40 °C) T5...T1 (-50 °C
a
February 2021