9 Supplement
Measures for electrical separation
Reliable separation according to VDE 0106 part 1 between power supply, sensor input and digital
component
Ʋ Reference voltage
Ʋ Voltage resistance of the insulation
Galvanic separation between relay output and digital part
Ʋ Reference voltage
Ʋ Voltage resistance of the insulation
Functional safety (SIL)
Instrument versions with (optional) SIL qualification can be used in safety-instrumented systems
according to IEC 61508/IEC 61511-1 (service proven).
You can find detailed information in the supplied Safety Manual of the instrument series or under
"www.vega.com", "Downloads", "Approvals".
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 no-
ted. They are part of the delivery or can be downloaded under www.vega.com, "VEGA Tools" and
"Instrument search" as well as in the general download area.
9.2
Dimensions
19 mm
(0.75")
34
All manuals and user guides at all-guides.com
250 V
3.75 kV
250 V
4 kV
69 mm
2 mm
(2.72")
(0.08")
VEGAMET 381 Ex • 4 ... 20 mA signal conditioning instrument
1
2
1
2
on
%
96 mm (3.78")