Wiring For Hazardous Installations - Emerson Micro Motion 5700 Installation Manual

Wiring the channels
August 2020
Frequency Output high and low voltages for nonhazardous installations
Figure 4-8: 24VDC supply
A. Output voltage (V)
B. Load resistance RL (Ω)
C. Low voltage
D. High voltage
E. Voltage (volts)
F. Time
High and low voltage equations
High voltage ≈ (Vsupply – 0.8) * RL / (1706 + RL)
Low voltage ≈ 0.0007 * RL

4.7 Wiring for hazardous installations

Follow these instructions for hazardous installations.
WARNING
Improper wiring in a hazardous environment can cause an explosion. Install the transmitter only in an area
that complies with the hazardous classification tag on the transmitter.
4.7.1 Hazardous installation parameters
Input entity parameters
Parameter 4-20mA Output
Voltage (Ui) 30 V
Current (Ii) 484 mA
Power (Pi) 2.05 W
Internal capacitance 0.27 nF
(Ci)
30
Installation Manual
Frequency Output and Discrete Output
30 V
484 mA
2.05 W
11.27 nF
Micro Motion 5700 transmitters for PROFIBUS PA
MMI-20075112