Electrical
connection
OI/TTR200-EN TTR200
15
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5.3 Block
diagram
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Sensor
TTR200
Power
supply
A00202
3,5 kV DC
( 2,5 kV AC 60s)
~
A
1
2
3
4
-
6
7
8
D
D
A
12
...
30
(Ex)
42
V
DC
min.
12
V
DC
5
+
A
9
-
+
Fig. 4
1
24-bit A/D converter
2
Microcontroller
3
16-bit D/A converter
4
HART signal
5
Load (observe voltage drop, refer to the section "Terminal
connection diagrams")
6
Digital measuring accuracy
7
D/A measuring accuracy
8
Overall measuring accuracy
9
Terminal 11, measurement of 4 … 20 mA output current without
opening / interrupting the current loop (internal resistance
ammeter < 15
Ω
)
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