4
ELECTRICAL CONNECTIONS
26
VERSAFLOW VORTEX 200
www.honeywellprocess.com
34-VF-25-137 iss.1 GLO July 2019 US
4.5 Flow sensor circuits (remote version only)
Observe the following points when connecting the flow sensor to the signal converter:
•
Use only the supplied connecting cable (max. length 50 m / 164 ft).
•
Before connecting or loosening the equipotential bonding cable, ensure there are no
differences in potential.
•
Connect the connecting cable shield to the equipotential bonding of the hazardous area in the
wall bracket. On the flow sensor side, the shield must be carefully isolated from the earth
(test voltage 500 V
eff
) and connected via the terminal end to the corresponding connector on
the terminal block.
•
The terminal compartments of the flow sensor circuits are supplied with a bridge between
the internal PA connection and the terminal with the designation "gnye". This connection
must not be separated.
The flow sensor circuit is designed in protection type "intrinsic safety Ex ia IIC".
Figure 4-3: Connection of remote version
1
Connection terminal flow sensor
2
Connection terminal signal converter
3
Connection shielding flow sensor
4
Shielding (drain wire and overall shield)
5
Connection shielding signal converter
6
Heat shrink tubing
rd
bu
bk
gr
ye
gn
gnye
rd
bu
bk
gr
ye
gn
gnye
rd
bu
ye
gn
bk
gr
gn ye
