Emerson Rosemount 248 Quick Start Manual page 21

February 2021
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 IEC 60529 and EN 60079-15 and be located
in an area of pollution degree 2 or better as defined in IEC 60664-1.
7.6.5 ND ATEX Dust
Certificates FM12ATEX0065X
Standards
Markings
Specific Conditions of Safe Use (X):
1. See certificate for ambient temperature range.
2. The non-metallic label may store an electrostatic charge and become
a source of ignition in Group III environments.
3. Guard the LCD display cover against impact energies greater than
four joules.
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.
7.7 International
7.7.1 E7 IECEx Flameproof and Dust
Certificate IECEx FMG 12.0022X
Standards IEC 60079-0:2011, IEC 60079-1:2014-06, IEC 60079-31:2013
Markings
Quick Start Guide
EN 60079-0: 2012+A11:2013, EN 60079-31:2014, EN
60529:1991 +A1:2000 +A2:2013
II 2 D Ex tb IIIC T130 °C Db, (-40 °C ≤ T
See Table 7-2 for process temperatures.
Ex db IIC T6...T1 Gb, T6(-50 °C ≤ T
T ≤ +60 °C); Ex tb IIIC T130 °C Db T
a
See Table 7-2 for process temperatures.
Quick Start Guide
≤ +70 °C); IP66
a
≤ +40 °C), T5...T1(-50 °C ≤
a
= -40 °C to +70 °C; IP66
a
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