Wiring, Cable bushings, Figure 18 – Vaisala PTU300 User Manual
Page 39
Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 37
Wiring
Cable Bushings
A single electrical cable with a screen and three to ten wires is
recommended for power and analog/serial connections. The cable
diameter should be 8 ... 11 mm. The number of cable bushings depends
on the transmitter options. See the following recommendations for the
cable bushings:
0604-059
Figure 18
Cable Bushings
The following numbers refer to Figure 18 above:
1
=
Cable for signal/powering Ø8 ... 11 mm
2
=
Pressure port
3
=
Cable for optional power supply module Ø8 ... 11 mm
NOTE
When there is high electric noise level (for example, near powerful
electric motor) in the operating environment it is recommended to use
shielded cable or take care that the signal cables are separated from other
cables.