BARCON LHC/PPC
Product description
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
D
a
te
of
I
s
s
u
e
1
5.
1
2
.2000
7
4.1.1
Pressure transmitter
The pressure transmitter has a piezo-resistive or thinfilm measurement cell (DMS)
depending on the pressure range. The sensors are temperature compensated, and
have a fully welded membrane which is "helium" leak-tested. Pressure transmitters
do not have internal seals.
Pressure transmitters further distinguish themselves from one another based on their
ranges and the types of media-touching materials. Different versions of process
connections can be selected for a wide range of application conditions.
The three main designs of pressure transmitters used in process applications are rod
type, rope type and externally mounted
.
4.1.2
Control interface unit
The control interface unit contains the terminal compartment and the keypad used in
programming the device. The four keys must be active (unlocked) before use. The
keypad is locked during normal operation to protect data and functions previously
entered. The keypad automatically locks after 10 minutes of disuse. The control
interface converts the sensor’s digital signal into a standard 4 mA ... 20 mA current
signal.
Please note that rope type transmitters have a minimum bending radius
of at least 22 cm.
Rope type
Rod type