2 connection of the sensor, Version with aluminium housing, Version with plastic housing – VEGA VEGASCAN 850 User Manual

Page 56: Electrical connection

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background image

56

VEGASCAN 850

ESC

+

-

OK

-

+

1

2

C

5

6

7

8

4

3

(+) (-)
VBUS

Commu-
nication

Display

1

2

C

5

6

7

8

Voltage supply and digital
meas. signal

M20 x 1.5
(diameter of the
connection
cable 6…9 mm)

M20 x 1.5

To the indicating instru-
ment in the cover or to the
external indicating
instrument VEGADIS 50

Version with aluminium housing

Sockets for
connection of
VEGACON-
NECT 2
(communica-
tion sockets)

Electrical connection

-

+

ESC

OK

Tank 1
m (d)
12.345

+

-

1 2

C

5 6 7 8

1 2

C

5 6 7 8

(+) (-)

Commu-

nication

Display

VBUS

Sockets for connec-
tion of the HART

®

handheld or VEGA-
CONNECT

Voltage supply and digital
meas. signal

Terminals
(max. 2.5 mm

2

wire cross-section)

Opening
tabs

pluggable
adjustment
module MINI-
COM

Version with plastic housing

Cable entry
M20 x 1.5

To the indicating instrument in
the cover or to the external
indicating instrument

5.2 Connection of the sensor

After mounting the sensor at the measure-
ment location according to the instructions in
chapter "4 Mounting and installation“, loosen
the closing screw on top of the sensor. The
sensor lid with the optional indication display
can then be opened. Unscrew the sleeve nut
and slip it over the connection cable (after
removing about 10 cm of insulation). The
sleeve nut of the cable entry has a self-lock-
ing ratchet that prevents it from opening on
its own.

Now insert the cable through the cable entry
into the sensor. Screw the sleeve nut back
onto the cable entry and clamp the stripped
wires of the cable into the proper terminal
positions.

The spring terminals hold the wire without a
screw. Press the white opening tabs with a
small screwdriver and insert the copper core
of the connection cable into the terminal
opening. Check the hold of the individual
wires in the terminals by lightly pulling on
them.

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