Filter
Top Products
Reference Manual
00809-0100-4530, Rev BA
July 2009
B-17
Rosemount 5300 Series
IECEX APPROVAL
Intrinsic Safety
Figure B-19. Approval Label
IECEx HART model
I7 Intrinsically Safe
Ex ia IIC T4 (T
amb
-50 °C to +70 °C)
(1)
.
IECEx NEM 06.0001X.
4-20 mA/HART: U
i
=30 V, I
i
=130 mA, P
i
=1 W, C
i
=7.26 nF, L
i
=0 mH.
Installation Drawing: 9240 030-938.
Conditions of Certification
The intrinsically safe circuits do not withstand the 500V AC test as specified in
EN 50020 clause 6.4.12.
Probes covered with plastic and/or with plastic discs will have a
non-conducting area that exceeds the maximum permissible area for Group
IIC accoring to IEC 60079-01 clause 7.3: 20 cm
2
for Zone 1 and 4 cm
2
for
Zone 0. Therefore, when the probe is used in a potentially explosive
atmosphere, appropriate measures must be taken to prevent electrostatic
discharge.
Impact and friction hazards need then to be considered according to IEC
60079-0 clause 8.1.2 when the transmitter exposed to the exterior
atmosphere of the tank is made with light metal alloys and used in Zone 0.
(1) Other temperature restrictions may apply, please refer to “Specifications” on page A-1.