Siemens SITRANS P320 Notice De Service page 89

Protection contre l'explosion
selon FM (États-Unis)
Special conditions for use
1. For type of protection "db": When used as a partition wall device at areas that require EPL Ga, a power supply is required
which is safely isolated from earth. This can be achieved, for example, by use of a SELV power supply unit.
2. Potential electrostatic charging hazard: Cleaning of enclosure surfaces should be done with damp cloth.
3. The enclosure shall not be installed in areas with intensive charging processes.
4. For type of protection "ec": Transient protection shall be provided that is set at a level not exceeding 140 % of the peak rated
voltage value at the supply input.
5. For type of protection "ec", the equipment shall only be used in an area of at least pollution degree 2, as defined in IEC
60664-1.
6. For type of protection "db", repairs on flame-proof joints can only be done by the original manufacturer.
7. The variant with overvoltage protection 6kV (order option D70) cannot withstand the dielectric strength test with AC
voltage. The dielectric strength test shall be performed with a test voltage of 500 VDC for one minute.
8. The plug connection type HAN 7D/8U (A32, A33, A36, A37, A41) and type M12 (A62, A63) and type M12 Anheuser Busch
plug (L34) may only be operated as part of an intrinsically safe circuit of up to 30 V maximum. Models containing these plugs
are only permitted to be used in hazardous Gas environments, not Dust environments.
Protection contre l'explosion selon cCSAus (Canada/États-Unis)
CSA18CA70163103X
Marquage (XP/DIP) ou (IS) ; NI
SITRANS P320/P420
Notice de service, 09/2021, A5E38874562-AD
HART
ZN 21, AEx tb IIIC T120°C Db
Les valeurs de service autorisées figurent dans le certificat.
According to CSA
Standards
According to US
Standards
Caractéristiques techniques
8.7 Certificats et homologations
PROFIBUS PA/FOUNDATION Fieldbus
ZN 21, AEx tb IIIC T120°C Db
Ex ia/db IIC T4/T6 Ga/Gb
Ex ia IIC T4/T6 Ga
Ex ia IIIC T120°C Da
Ex tb IIIC T120°C Db
Ex ec IIC T4/T6 Gc
Class I, DIV 1, Gr. A-D (Explosion Proof)
Intrinsically Safe (IS) for Class I, DIV 1, Gr. A-D
(Intrinsically Safe (IS))
Class II, DIV 2, Gr. E-G; Class III
Class I, DIV 2, Gr. A-D (NI)
Class I, Zone 0/1, AEx ia/db IIC T4/T6 Ga/Gb
Class I, Zone 0, AEx ia IIC T4/T6 Ga
Zone 20, AEx ia IIIC T120°C Da
Zone 21, A/Ex tb IIIC T120°C Db
Class I, Zone 2, AEx ec IIC T4/T6 Gc
Class I, DIV 1 Gr. A-D (Explosion proof (XP))
Class I, DIV 1 Gr. A-D (Intrinsically Safe (IS))
Class II, DIV 2, Gr. E-G; Class III
Class I, DIV 2, Gr. A-D (NI)
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