VEGA VEGABAR 53 4 … 20 mA - Manual (Page 48)

48
9 Supplement
VEGABAR 53 • 4 … 20 mA
36721-EN-130321
Electrical protective measures
Protection rating
Ʋ Housing, standard IP 66/IP 67 20)
Ʋ Aluminium and stainless housing
(optionally available)
IP 68 (1 bar) 21)
Ʋ Process component in IP 68 version IP 68 (25 bar)
Ʋ External housing IP 65, IP 66/IP 68 (0.2 bar)
Overvoltage category III
Protection class II
Functional safety (SIL)
Functional safety is already activated on instruments with SIL qualification ex factory. On instru-
ments without SIL qualification ex factory, the functional safety must be activated by the user via
the display and adjustment module or via PACTware for applications according to SIL.
Functional safety according to IEC 61508-4
Ʋ Single channel architecture (1oo1D) up to SIL2
Ʋ double channel diversitary redundant
architecture (1oo2D)
up to SIL3
You can find detailed information in the supplied Safety Manual of the instrument series or under
"www.vega.com", "Downloads", "Approvals".
Approvals
Instruments with approvals can have different technical data depending on the version.
For that reason the associated approval documents of these instruments have to be carefully
noted. They are part of the delivery or can be downloaded under www.vega.com via "VEGA Tools"
and "serial number search" as well as via "Downloads" and "Approvals".
9.2 Dimensions
The two chamber housings are not available with instruments with 4 … 20 mA signal output
20) Instruments with gauge pressure measuring ranges cannot detect the ambient pressure when submerged, e.g.
in water. This can lead to falsification of the measured value.
21) Only with instruments with absolute pressure ranges.