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VEGA VEGADIF 65 4 … 20 mA_HART User Manual

Page 86

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86

11 Supplement

VEGADIF 65 • 4 … 20 mA/HART

36128-EN-130417

Load

see diagram

1000

750

500

250

12

18

16

14

20

22

24

26

28

30

32

34

36

V

4

1

2

3

Fig. 61: Voltage diagram
1 HART load

2 Voltage limit Ex-ia instrument

3 Voltage limit non-Ex/Ex-d instrument

4 Operating voltage

Electrical protective measures
Protection rating

Ʋ Housing, standard

IP 66/IP 67

Ʋ Aluminium and stainless housing

(optionally available)

IP 68 (1 bar)

Ʋ Process component in IP 68 version IP 68 (25 bar)

Ʋ External housing

IP 65

Overvoltage category

III

Protection class

II

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".