VEGA VEGADIS 61 - Manual (Page 13)

5 Connecting to the sensor
5 .1 Preparing the connection
Always keep in mind the following safety instructions:
l Connect only in the complete absence of line voltage
VEGADIS 61 is connected to the sensor with standard four-wire cable
with screen.
Use cable with round cross-section. A cable outer diameter of 5 … 9 mm
(0.2 … 0.35 in) ensures the seal effect of the cable gland. If you are
using cable with a different diameter or cross-section, exchange the
seal or use a suitable cable gland.
Tip:
We recommend using the matching, ready-made connection cable
from the VEGA product line.
VEGADIS 61 is connected with a screened four-wire special cable of
up to 25 m length with connection socket M12 x 1 to the sensor.
Information:
The special cable is part of the scope of delivery of PA/FF sensors with
connection plug M12 x 1 for VEGADIS 61.
This special cable is absolutely necessary for reliable functioning of
VEGADIS
61 as well as the sensor.
Connect the cable screen on both ends to ground potential. In
VEGADIS
61 and in the sensor, the screen must be connected directly
to the internal ground terminal. The ground terminal on the outside of
the housing must be connected to the potential equalisation (low
impedance).
5 .2 Connection procedure
Proceed as follows:
1 Unscrew the housing cover
2 Remove the indicating and adjustment module by turning it slightly
to the left
3 Loosen compression nut of the cable entry
4 Remove approx. 10 cm of the cable mantle, strip approx. 1 cm
insulation from the individual wires
5 Insert the cable into VEGADIS 61 through the cable entry
6 Lift the opening levers of the terminals with a screwdriver (see
following illustration)
7 Insert the wire ends into the open terminals according to the wiring
plan
Safety instructions
4 … 20 mA/HART sensor
PA/FF sensor
Cable screening and
grounding
VEGADIS 61 13
5 Connecting to the sensor
27720
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EN
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