User's Manual

1000
750
500
250
15
1816 20 22 24 26 28 30 32 34 36
Ω
V
4
1
2
3
Fig. 52: Voltage diagram for version with increased sensitivity
1 HART load
2 Voltage limit EEx ia instrument
3 Voltage limit non-Ex/Exd instrument
4 Supply voltage
Electrical protective measures
Protection
- Plastic housing IP 66/IP 67
- Alu and stainless steel standard IP 66/IP 68 (0.2 bar)
15)
- Alu and stainless housing, optionally
available
IP 66/IP 68 (1 bar)
Overvoltage category III
Protection class II
Functional safety (SIL)
16)
Functional safety acc. to IEC 61508-4
- Single channel architecture (1oo1
D)
up to SIL2
- double channel diversitary redun-
dant architecture (1oo2 D)
up to SIL3
15)
Requirement to maintain the protection is the suitable cable.
16)
Not with increased sensitivity.
Supplement
68 VEGAPULS 62 - 4 ... 20 mA/HART
28435-EN-060317