Emerson Rosemount 648 Manuale di avvio rapido - Pagina 5
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February 2019
2.0
Physical installation
2.1
Vent tube installation
The vent tube needs to be exposed to atmosphere in a dry environment. During
installation, protect the end of the cable from water ingress. Do not remove the
cover on the cable until the end is at the point of connection.
Note
The maximum bend radius for polyurethane cable is 1
tube in the cable may kink causing measurement errors.
Follow sensor manufacturer's installation recommendations.
2.2
Wiring terminal block
The terminal block uses color abbreviations for the color wire from the Impress
pressure sensor that goes with each terminal lug on the terminal block label
(Figure
4).
WHT – White
BRN – Brown
The four wires from the sensor must be connected to the corresponding colors
on the label. Ground according to your facility standard practices.
Ground the sensor cable shield to a ground outside or inside of the transmitter
terminal compartment. The cable shield should be trimmed close and insulated
to keep it from touching the other sensor wires or terminals.
Only power this device with the 701PBKKF power module and only connect
Impress Strain Gauge on the terminals.
Figure 4. Terminal Wire Colors
YEL – Yellow
GRN – Green
Quick Start Guide
1
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inches. If bent further, the vent
2
5