52
11 Supplement
VEGACAL 66 • Foundation Fieldbus
30038-EN-200929
Housing material
Version
IP-protection class
NEMA protection
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
4)
4
Protection class
II (IEC 61010-1)
Approvals
Instruments with approvals can have different technical specifications 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 by entering the serial number of your
instrument into the search field under
www.vega.com as well as in the general download area.
11.2 Device communication Foundation Fieldbus
In the following, the necessary device-specific details are shown. You can find further information of
Foundation Fieldbus on
Block diagram, measured value processing
The following illustration shows the Transducer Block (TB) and Function block (FB) in simplified
form.
4)
When used with fulfilled housing protection