VEGA VEGASON 63 4 … 20 mA_HART - two-wire - Manual (Page 45)

45
10 Supplement
VEGASON 63 • 4 … 20 mA/HART - two-wire
28777-EN-130417
Ʋ Inspection window Polyester foil
Voltage supply
Operating voltage
14 … 36 V DC
Operating voltage with illuminated dis-
play and adjustment module 10)
20 … 36 V DC
Permissible residual ripple
Ʋ < 100 Hz U
ss
< 1 V
Ʋ 100 Hz … 10 kHz U
ss
< 10 mV
Load see diagram
1000
750
500
250
14 18 16 20 22 24 26 28 30 32 34 36
Ω
V
4
1
2
3
Fig. 29: Voltage diagram
1 HART load
2 meaningless
3 Voltage limit
4 Operating voltage
Electrical protective measures
Protection, depending on housing version
Ʋ Plastic housing IP 66/IP 67
Ʋ Aluminium housing, stainless steel
housing - investment casting, stain-
less steel housing - electro-polished
IP 66/IP 68 (0.2 bar) 11)
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
10) For instruments with national approvals such as e.g. according to CSA, only available at a later date.
11) A suitable cable is the prerequisite for maintaining the protection rating.