Emerson Rosemount 3051 Reference Manual page 191

Reference Manual
00809-0100-4001, Rev JA
China certifications
E3
I3
Product certifications
Flameproof and Dust
NEPSI Certificate No.: GYJ091065X
Applicable Standards: GB3836.1-2000, GB3836.4-2000,GB4208-1993, GB12476-2000
Markings: Ex d II C T5/T6, -50°~+80°C (T5), -50°~+65°C (T6), DIP A21 TA T90°C, IP66
Specific Conditions for Safe Use (X):
The symbol "X" placed after the certificate number indicates special condition for safe
use, that is the transmitter contains a thin wall diaphragm. Installation, maintenance, and
use shall not only take into account the environmental condition, but also follow the
manufacturer's instructions.
2.1 The relation between ambient temperature range and temperature class is as follows:
T
a
-50 °C to 80 °C
-50 °C to 65 °C
When used in combustible dust environment, the maximum ambient temperature is 80
°C.
2.2 The earth connection facility in the enclosure should be connected reliably.
2.3 Cable entry certified by notified body with type of protection Ex d II C in accordance
with GB3836.1-2000 and GB3836.2-2000, should be applied when installing in
hazardous location. When used in combustible dust environment, cable entry in
accordance with IP66 or higher level should be applied.
2.4 Obey the warning "Keep tight when the circuit is alive."
2.5 End users are not permitted to change any component's insides.
2.6 When installing, using, and maintaining the transmitter, observe the following
standards
GB3836.13-1997 "Electrical apparatus for explosive gas atmospheres Part 13: Repair and
overhaul for apparatus used in explosive gas atmospheres"
GB3836.15-2000 "Electrical apparatus for explosive gas atmospheres Part 15: Electrical
installations in hazardous area (other than mines)"
GB3836.16-2006 "Electrical apparatus for explosive gas atmospheres Part 16: Inspection
and maintenance of electrical installation (other than mines)"
GB50257-1996 "Code for construction and acceptance of electric device for explosion
atmospheres and fire hazard electrical equipment installation engineering"
GB12476.2-2006 "Electrical apparatus for use in the presence of combustible dust Part
1-2: Electrical apparatus protected by enclosures and surface temperature
limitation-Selection, installation and maintenance"
GB15577-2007 "Safety regulations for dust explosion prevention and protection"
Intrinsic Safety and Dust
NEPSI Certificate No: GYJ091066X
Applicable Standards: GB3836.1-2000, GB3836.2-2000,GB4208-1993, GB12476-2000
Markings: Ex ia II C T4/T5, -60°~+40°C (T5), -60°~+70°C (T4), DIP A21 TA T80°C
Appendix B: Product Certifications
Temperature class
T5
T6
November 2012
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