Endress+Hauser RIA452 - Safety Conventions and Icons

RIA452
Endress+Hauser 5
Power supply
Electrical connection
Terminal layout of process display unit
154
155
156
144
145
146
151
152
153
141
142
143
54
55
56
44
45
46
51
52
53
41
42
43
81
82
11
12
91
92
31
32
33
34
L/L+
N/L-
NC
96
97
197
297
397
RS232
90...250V AC
50/60Hz
20..36V DC
20...28V AC
50/60Hz
+
-
+
-
+
-
+
-
+
+
-
-
1
2
3
4
-
+
+
-
nc
J1
J2
Current loop trans-
mitter power supply
unit max. 22mA
Current input
0..20mA
Current input
0..20mA
Relay 8
Relay 7
Relay 6
Relay 5
Relay 4
Relay 3
Relay 2
Relay 1
Analog output
0..20mA, 0..10V DC
Transmitter power
supply unit
24V, <= 250mA
Digital output, passive
open collector
max. 24V, 200mA
Relay 1-8
250V AC /30V DC
3A
Terminals 12 and 82
bridgedinternally
Internal circuits represented
by dashed lines.
Current input
Relay output
Digital inputs
acc. to DIN 19240
Voltage level: -3...5 V low,
12...30 V high
Input current typ. 3 mA
(with overload and reverse
polarity protection)
Input voltage max. 34.5 V
Sampling frequency max. 10 Hz