Emerson Rosemount 248 Quick Start Manual page 20

Quick Start Guide
4. Flameproof joints are not intended for repair.
5. A suitable certified Ex d or Ex tb enclosure is required to be connected
to temperature probes with Enclosure option "N".
6. Care shall be taken by the end user to ensure that the external
surface temperature on the equipment and the neck of DIN Style
Sensor probe does not exceed 266 °F (130 °C).
7. Non-standard paint options may cause risk of electrostatic discharge.
Avoid installations that cause electrostatic build-up on painted
surfaces and only clean the painted surfaces with a damp cloth. If
paint is ordered through a special option code, contact the
manufacturer for more information.
7.6.2 I1 ATEX Intrinsic Safety
Certificate Baseefa18ATEX0090X
Standards EN IEC 60079-0: 2018, EN 60079-11: 2012
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 if
located in a Zone 0 environment.
7.6.3 N1 ATEX Zone 2 - with enclosure
Certificate Baseefa18ATEX0091X
Standards EN IEC 60079-0:2018, EN 60079-15:2010
Markings
7.6.4 NC ATEX Zone 2 - without enclosure
Certificate Baseefa18ATEX0091X
Standards EN IEC 60079-0:2018, EN 60079-15:2010
Markings
20
II 1 G Ex ia IIC T5/T6 Ga, T5(-60 °C ≤ T
≤ T ≤ +60 °C)
a
See Table 7-3 for entity parameters.
II 3 G Ex nA IIC T5/T6 Gc, T5(-60 °C ≤ T
°C ≤ T ≤ +60 °C)
a
II 3 G Ex nA IIC T5/T6 Gc, T5(-60 °C ≤ T
°C ≤ T ≤ +60 °C)
a
February 2021
≤ +80 °C), T6(-60 °C
a
≤ +80 °C), T6(-60
a
≤ +80 °C), T6(-60
a