components for hygienic seals meet the requirements stated in EMA/410/01 Rev. 3 and
ISO 22442-1:2015. Wetted components in hygienic seals are considered free of TSE.
A.3.3
Housing and enclosure
Materials
Polished stainless steel 316L (EN 1.4404)
Transmitter weight
1.1 lb (0.5 kg)
Ingress protection
•
IP66/68
/69 (IEC 60529)
•
IP6K9K (ISO 20563:2013)
•
NEMA
®
4X
The stated ingress protection only applies when plugged in using a suitable M12
connector that has the appropriate ingress protection.
A.3.4
Surface finishes
Process wetted parts
•
R
a
< 30 μ-in. (0.76 μ-m) for polymeric parts
•
R
a
< 16 μ-in (0.4 μ-m) for metallic parts
Non-wetted parts
•
R
a
< 30 μ-in. (0.76 μ-m) for stainless steel housing
A.3.5
Process connection
ISO 228/1-G1 thread with a wide choice of hygienic adapters
A.3.6
Material exposed to tank atmosphere
With adapter
•
PTFE sealing: PTFE fluoropolymer
•
Adapter: 316L (EN 1.4435)
•
Hygienic O-ring: EPDM or FKM
(4)
Adapter not included.
(5)
IP68 at 9.8 ft. (3 m) for more than 30 minutes.
Specifications and reference data
Reference Manual
September 2020
00809-0100-4480
78
Rosemount 1408H Level Transmitter