Emerson Rosemount 644 Reference Manual page 141
Temperature transmitter with hart protocol
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Also See for Rosemount 644:
- Reference manual (134 pages) ,
- Quick start manual (52 pages) ,
- Service manual (37 pages)
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Reference Manual
00809-0200-4728, Rev RA
NG
Special Condition for Safe Use (X):
1.
2.
NK
Special Conditions for Safe Use (X):
1.
2.
3.
4.
Brazil
E2
Special Conditions for Safe Use (X):
1.
2.
3.
Product Certifications
IECEx Type n - no enclosure
Certificate: [Headmount Fieldbus/Profibus, Railmount HART]: IECEx BAS 12.0053X
[Headmount HART]: IECEx BAS 12.0070U
Standards: IEC 60079-0: 2011, IEC 60079-15: 2010
Markings: [Headmount Fieldbus/Profibus, Railmount HART]: Ex nA IIC T5 Gc
(-40 °C ≤ Ta ≤ +70 °C)
[Headmount HART]: Ex nA IIC T6...T5 Gc; T6(-60 °C ≤ Ta ≤ +40 °C); T5
(-60 °C ≤ Ta ≤ +85°C)
The Model 644 Temperature 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 EN 60079-15.
When fitted with the Transient Protector Assembly, the equipment is not capable of
withstanding the 500V test. This must be taken into account during installation.
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 ≤ Ta ≤ +70 °C); IP66
See
Table B-1
for process temperatures
See certificate for ambient temperature range.
The non-metallic label may store an electrostatic charge and become a source of ignition
in Group III environments.
Guard the LCD cover against impact energies greater than 4 joules.
Consult the manufacturer if dimensional information on the flameproof joints is
necessary.
INMETRO Flameproof
Certificate: NCC 12.1147X
Standards: ABNT NBR IEC 60079-0:2008, ABNT NBR IEC 60079-1:2009, NBR 8094:1983
Markings: Ex d IIC T6...T1 (-40 °C ≤ Ta ≤ +65 °C) Gb; IP66W
Care must be taken to ensure that the surface temperature does not exceed 85°C when
RTDs or thermocouples are fitted to the transmitter.
The mechanical and chemical characteristics of the process fluid must be evaluated in
order not to cause deterioration or corrosion to the temperature probes.
For information on the dimensions of explosion-proof joints, the manufacturer should be
contacted.
Appendix B: Product Certifications
April 2015
131
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