Emerson Rosemount 5900C, Reference Manual

Page: 283 / 322

2. Non-metallic surfaces and the surface of the painted housing may, under certain
extreme conditions, generate an ignition-capable level of electrostatic. Appropriate
measures must be taken to prevent electrostatic discharge.
3. Using the box provided on the nameplate, the User shall permanently mark the
type of protection chosen for the specific installation. Once the type of protection
has been marked it shall not be changed.
4. When installed as Ex ib Ga/Gb, the partition wall materials separating EPL Ga from
EPL Gb are constructed of different materials depending on the antenna option.
Please refer to Control Drawing D9240040-917 for the material type of each
antenna. The material shall not be subject to environmental conditions which might
adversely affect the partition wall.
5. Maximum Process Temperatures are as follows:
When option n=Tank Seal O-ring Type Min/Max Process
Temperature Range
PV or QV Viton -15°C to +180°C
PK, FK, HK or QK Kalrez -20°C to +230°C
PE or QE EPDM -40°C to +110°C
PB or QB BUNA-N -35°C to +90°C
PM, FF, HH or QM FVMQ -60°C to +155°C
PF or QF FEP -60°C to +180°C
B.8 International
B.8.1 I7 IECEx Intrinsic Safety
Certificate IECEx FMG 09.0009X
Standards IEC 60079-0:2017, IEC 60079-11:2011, IEC 60079-26:2014
Markings Ex ia IIC T4 Ga
Ex ib IIC T4 Ga/Gb
Ta = -50°C to +80°C; IP66, IP67
Ui (Vmax) Ii (lmax) Pi Ci Li
Entity parameters 30 V 300 mA 1.3 W 1.1 nF 1.5 µH
FISCO parameters 17.5V 380 mA 5.32 W 1.1 nF 1.5 µH
Specific Conditions for Safe Use (X):
1. The enclosure contains aluminum and is considered to present a potential risk of
ignition by impact or friction. When installed as EPL Ga, care must be taken during
installation and use to prevent impact or friction.
Reference Manual Product Certifications
00809-0100-5901 September 2019
Rosemount 5900C Radar Level Gauge 283