6
Subject to technical modifications
22PDP differential pressure sensor /
Installation
Installation
Stainless steel pressure
transmitters
The two remote stainless steel pressure transmitters and the corresponding
connecting cable ends are marked
HIGH
(connection for high pressure) and
LOW
(connection for low pressure). The output signal shows a positive value
when the pressure applied at the
HIGH
connection is greater than that at the
LOW
connection. Make sure that the pressure transmitters, as shown in a typi-
cal application in Figure 5, are connected correctly. Both pressure transmitters
have a G¼" external thread for connection to the pipe to be monitored. Do not
permit any material to fall into the pressure connections, as contaminations
could damage the pressure transmitters.
HIGH
LOW
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
Figure 5
Pressure transmitters
Remove the pressure transmitter marked
HIGH
from the connecting cable by
unscrewing the screw cap and then pulling the cable plug from the pressure
transmitter.
1
2
H
IG
H
LO
W
H
IG
H
LO
W
Figure 6
