VEGA VEGABAR 81 Save sensor - Operating Instructions - Manual (Page 47)

47
9 Supplement
VEGABAR 81 • Slave sensor for electronic differential pressure
45049-EN-131011
Cable entry/plug 6)
Ʋ External housing – 1 x cable gland M20 x 1.5 (cable: ø 5 … 9 mm), 1 x
blind plug M20 x 1.5
or:
– 1␣x plug (depending on the version), 1␣x blind stopper
M20␣x␣1.5
Spring-loaded terminals for wire cross-
section up to
2.5 mm² (AWG 14)
Voltage supply, interface to the master sensor
Voltage supply
Through the master sensor
Data transmission digital (I²C-Bus)
Configuration, connection cable 4-wire, screened
Cable length max. 25 m
Voltage supply
Power supply via the master sensor.
Potential connections in the instrument
Electronics
Not non-floating
Ground terminal Galvanically connected with the process fitting
Electrical protective measures
Housing material Version IP-protection class NEMA protection
Plastic Single chamber IP 66/IP 67 NEMA 4X/6P
Aluminium Single chamber IP 66/IP 68 (0.2 bar)
IP 68 (1 bar) NEMA 4X/6P
-
Stainless steel, electro-
polished
Single chamber
Single chamber IP 66/IP 68 (0.2 bar)
IP 69K NEMA 4X/6P
-
Stainless steel, investment
casting
Single chamber IP 66/IP 68 (0.2 bar)
IP 68 (1 bar) NEMA 4X/6P
NEMA 4X
Stainless steel Transmitter for external
housing
IP 68 (25 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 must be carefully noted.
They are part of the delivery or can be downloaded under www.vega.com and "VEGA Tools" as
well as under "Downloads" and "Approvals".
6) Depending on the version M12 x 1, according to ISO 4400, Harting, 7/8" FF.