Emerson Rosemount 644R Quick Start Manual page 19

June 2016
Special Conditions of Certification (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 4 joules.
4. Consult the manufacturer if dimensional information on the flameproof joints is
necessary.
I7 IECEx Intrinsic Safety
Certificate: [Headmount HART]: IECEx BAS 12.0069X
Standards: IEC 60079-0: 2011, IEC 60079-11: 2011
Markings: Ex ia IIC T6...T4 Ga
See Table 4
Special Conditions of Certification (X):
1. The equipment must be installed in an enclosure which affords it a degree of protection
of at least IP20 in accordance with the requirements of IEC 60529. Non-metallic
enclosures must have a surface resistance of less than 1 GΩ; light alloy or zirconium
enclosures must be protected from impact and friction when installed in a Zone 0
environment.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of
withstanding the 500 V test as defined in Clause 6.3.13 of IEC 60079-11:2011. This must
be taken into account during installation.
N7 IECEx Type n - with enclosure
Certificate: IECEx BAS 07.0055
Standards: IEC 60079-0: 2011, IEC 60079-15: 2010
Markings: Ex nA IIC T5 Gc (-40 °C ≤ T
NG IECEx Type n - without enclosure
Certificate: [Headmount Fieldbus/PROFIBUS, Railmount HART]: IECEx BAS 13.0053X
Standards: IEC 60079-0: 2011, IEC 60079-15: 2010
Markings: [Headmount Fieldbus/PROFIBUS, Railmount HART]: Ex nA IIC T5 Gc
Special Conditions of Certification (X):
1. The Rosemount 644 Transmitter 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 IEC 60079-15.
2. When fitted with the Transient Protector Assembly, the equipment is not capable of
withstanding the 500 V test. This must be taken into account during installation.
NK IECEx Dust
Certificate: IECEx FMG 12.0022X
Standards: IEC 60079-0: 2011, IEC 60079-31: 2008
Markings: Ex tb IIIC T130 °C Db, (-40 °C ≤ T
See Table 3
[Headmount Fieldbus/PROFIBUS, Railmount HART]: IECEx BAS 07.0053X
for entity parameters and temperature classifications.
[Headmount HART]: IECEx BAS 12.0070U
(–40 °C ≤ T ≤ +70 °C)
a
[Headmount HART]: Ex nA IIC T6...T5 Gc; T6(–60 °C ≤ T
T5(–60 °C ≤ T ≤ +85 °C)
a
for process temperatures.
≤ +70 °C)
a
≤ +70 °C); IP66
a
Quick Start Guide
≤ +40 °C);
a
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