VEGA VEGAFLEX 65 4 … 20 mA_HART four-wire - Manual (Page 44)

Voltage supply
O perating voltage
-
N on-Ex and Ex-d instrument 20 … 72 V DC, 20 … 253 V AC, 50/60 H z
M
ax. power consumption 4 VA; 2.1 W
Electrical protective measures
P rotection rating IP 66/IP 67
O vervoltage category III
P rotection class I
Functional safety (SIL)
F unctional safety is already activated on instruments with SIL qualification ex factory. On
instruments without SIL qualification ex factory, the functional safety must be activated by the user
via the indicating and adjustment module or via PACTware for applications according to SIL.
F unctional safety according to IEC 61508-4
-
S ingle channel architecture (1oo1D) up to SIL2
-
double channel diversitary redundant
architecture (1oo2D) up to SIL3
Y ou can find detailed information in the supplied Safety Manual of the instrument series or under
"
www.vega.com", "Downloads", "Approvals".
Approvals
I nstruments with approvals can have different technical data depending on the version.
T hat's why the associated approval documents have to be noted with these instruments. 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".
44 VEGAFLEX 65 • 4 … 20 mA/HART - four-wire
10 S upplement
31846
-EN
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