EB 9527-3 EN
9
Design and principle of operation
Fig. 1:
Functional diagram
Min./max. alarm A1
Serial interface
Indicating unit with LCD
1
Differential pressure cell
1.1
Measuring diaphragm
1.2
Range spring
1.3 Lever
1.4
Flexible disk
1.5
Diaphragm stem
2
Travel sensor
3
Microprocessor
4
Data memory (FRAM)
5
Operating keys
6
Four DIP switches (for select-
ing gas type, span protection
and write protection)
7
Indicating unit with LCD
8
Limit switch and pulse output
9
D/A converter
10
RS-232 interface
Connector B
Min./max. alarm A2 or pulse
output (Media 6 Z)
Connector A
U
B
= 12 to 36 V DC
I
A
= 4 to 20 mA
FRAM
μP
dp cell
Valve block
with pressure
gauge
0
20
40
60
80
100
%
m
3
#
7
6
5
3
2
1.1
1.2
9
8
10
1.5
4
1.4
1.3
1.2
1
p
2
p
1
_
+
Summary of Contents for Media 6 Z
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