Dimensions - Vega VEGABAR 86 Operating Instructions Manual

11 Supplement
F = √(0.26 %) + (0.1 %)
2
perf
F = 0.28 %
perf
- 2. step: Total deviation F
F = F + F
total perf stab
F = 0.28 % (result of step 1)
perf
F = (0.05 % x TD)
stab
F = (0.05 % x 2.5)
stab
F = 0.13 %
stab
F = 0.28 % + 0.13 % = 0.41 %
total
The total deviation of the measuring system is hence 0.41 %.
Deviation in mm: 0.41 % of 1600 mm = 7 mm
The example shows that the measurement error in practice can be considerably higher than the
basic accuracy. Reasons are temperature influence and Turn down.

11.5 Dimensions

The following dimensional drawings represent only an extract of the possible versions. Detailed
dimensional drawings can be downloaded at www.vega.com under " Downloads" and " Drawings".
Plastic housing
Fig. 35: Housing versions in protection IP66/IP67 (with integrated display and adjustment module the housing is
9 mm/0.35 in higher)
1 Plastic single chamber
2 Plastic double chamber
68
)
2
total
~ 69 mm
(2.72")
ø 79 mm
(3.11")
M20x1,5/
½ NPT
1
~ 84 mm
(3.31")
ø 79 mm
(3.11")
M16x1,5
M20x1,5/
2
½ NPT
VEGABAR 86 • Foundation Fieldbus