54
11 Supplement
VEGACAL 64 • Two-wire 4 … 20 mA/HART
30030-EN-200929
Ʋ 100 Hz … 10 kHz
U
ss
< 10 mV
Load
see diagram
Potential connections and electrical separating measures in the instrument
Electronics
Not non-floating
Reference voltage
6)
500 V AC
Conductive connection
Between ground terminal and metallic process fitting
Electrical protective measures
Protection rating
Housing material
Version
IP-protection class
NEMA protection
Plastic
Single chamber
IP66/IP67
Type 4X
Double chamber
IP66/IP67
Type 4X
Aluminium
Single chamber
IP66/IP68 (0.2 bar)
IP68 (1 bar)
Type 6P
Type 6P
Double chamber
IP66/IP67
IP66/IP68 (0.2 bar)
IP68 (1 bar)
Type 4X
Type 6P
Type 6P
Stainless steel (electro-
polished)
Single chamber
IP66/IP68 (0.2 bar)
Type 6P
Stainless steel (precision
casting)
Single chamber
IP66/IP68 (0.2 bar)
IP68 (1 bar)
Type 6P
Type 6P
Double chamber
IP66/IP67
IP66/IP68 (0.2 bar)
IP68 (1 bar)
Type 4X
Type 6P
Type 6P
Connection of the feeding power supply
unit
Networks of overvoltage category III
Altitude above sea level
Ʋ
by default
up to 2000 m (6562 ft)
Ʋ
with connected overvoltage protection up to 5000 m (16404 ft)
Pollution degree
7)
4
Protection class
II (IEC 61010-1)
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
6)
Galvanic separation between electronics and metal housing parts
7)
When used with fulfilled housing protection