VEGA VEGACAL 63 Foundation Fieldbus - Manual (Page 42)

42
10 Supplement
VEGACAL 63 • Foundation Fieldbus
30029-EN-130917
Voltage supply
Operating voltage
Ʋ Non-Ex instrument 9 … 32 V DC
Ʋ Ex-ia instrument 9 … 24 V DC
Ʋ Ex-d instrument 16 … 32 V DC
Operating voltage with illuminated display and adjustment module
Ʋ Non-Ex instrument 12 … 32 V DC
Ʋ Ex-ia instrument 12 … 24 V DC
Ʋ Ex-d instrument 20 … 32 V DC
Power supply by/max. number of sensors
Ʋ Fieldbus max. 32 (max. 10 with Ex)
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) 3)
Ʋ Aluminium and stainless housing, in-
vestment casting (optionally available)
IP 66/IP 68 (1 bar)
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".
10.2 Foundation Fieldbus
Block diagram, measured value processing
The following illustration shows the Transducer Block (TB) and Function block (FB) in simplified
form.
3) A suitable cable is the prerequisite for maintaining the protection rating.