Emerson 8800A - Page 40

Rosemount Model 8800C Vortex Flowmeter
2-30
Figure 2-22. 4-20mA Wiring
Figure 2-23. 4–20 mA and Pulse Wiring with Electronic Totalizer/ Counter
Figure 2-24. 4-20mA and Pulse Wiring with Electromechanical Counter
8800-0000A03C
–
+
Test
Ammeter
R
L
 250 W
+
–
–
Power
+
+
Communicator
A HART-based communicator may
be connected at any termination
point in the signal loop. Signal loop
must have 250 ohms minimum load
for communications.
–
Housing Ground
–
+
A HART-based communicator may be
connected at any termination point in the
signal loop. Signal loop must have 250
ohms minimum load for communications.
R
L
 250 W
–
+
+
+
1K
W
Typical
+
Communicator
Test
Ammeter
(1)Resistor may be internal or external
to Electronic Totalizer/Counter.
dc Volts  Resistor < 0.12 A.
30 V dc
(Max) Out
(1)
+
Power
Supply
Counte
r Input
+
–
–
–
Housing Ground
8800-0000A03B
A HART-based communicator may
be connected at any termination
point in the signal loop. Signal loop
must have 250 ohms minimum load
for communications.
R
L
 250 W
+
+
–
–
–
+
Test
Ammeter
+
–
Power
Supply
(30 V max)
+
Power
Supply
8800-0000A03A
Communicator
+
–
–
+
Housing Ground