Safe Area Frequency/Discrete Output Wiring - Emerson MICRO MOTION 2700 Installation Manual

Output Wiring – Model 1700/2700 Intrinsically Safe Transmitters
Figure 5-4 Safe area HART multidrop wiring with SMART FAMILY
HART-compatible
host or controller
600 Ω maximum resistance
250 Ω minimum resistance
Note: For optimum HART communication, make sure the output loop
is single-point-grounded to an instrument-grade ground.
5.3.2

Safe area frequency/discrete output wiring

The following frequency/discrete output wiring diagram is an example of proper basic wiring for the
Model 1700 transmitter's frequency output or the Model 2700 transmitter's frequency/discrete output.
Figure 5-5 Safe area frequency/discrete output wiring
Counter
+
00042
–
R
load
Note: See Figure 5-6 for voltage and resistance values.
36
HART-compatible
transmitters
+
VDC
–
™
Model 1700 or 2700
I.S. transmitter
+
–
Micro Motion
transmitters and a configuration tool
24 VDC loop power
supply required for
™
SMART FAMILY
transmitter
passive transmitters
®
Model 1700 and 2700 Transmitters
HART 4–20 mA