Emerson Micro Motion 5700 Installation Manual page 32

Wiring the channels
February 2020
4.6.3 Wire the Frequency Output or Discrete Output for
hazardous installations
Prerequisites
Important
Meter installation and wiring should be performed only by suitably-trained personnel
using the appropriate government and corporate safety standards.
Procedure
Wire to the appropriate output terminal and pins.
Figure 4-11: FO and DO hazardous wiring
A. Frequency Output or Discrete Output
B. Channel C
C. 8-30 VDC (maximum)
D. Load resistor (500 Ω resistance recommended for 24V supply). Use the following
E. Counter
F. Safety barrier
G. Rbarrier
Related information
Frequency Output high and low voltages for hazardous installations
32
equations for other load resistance values:
• Rmax = [(Vsupply – 6V) / 0.003] – Rbarrier (maximum value of load resistor allowed)
• Rmin = 0 ohms (minimum value of load resistance required)
Micro Motion 5700 transmitters for F
Installation Manual
MMI-20029969
Fieldbus
OUNDATION