Emerson Rosemount MultiVariable 3051S Series User Manual

Figure 4-2: Load Limitation
Maximum loop resistance = 43.5 x (power supply voltage – 12.0)
1322
1000
500
0
12.0 20 30
42.4
Voltage (Vdc)
Load (Ohms)
Operating
region
HART communication requires a minimum loop resistance of 250Ω
4.3 Install optional process temperature input (Pt 100 RTD
sensor)
About this task
Note
To meet ATEX/IECEx Flameproof certification, only ATEX/IECEx Flameproof
cables (temperature input code C30, C32, C33, or C34) may be used.
Procedure
1. Mount the Pt 100 RTD sensor in the appropriate location.
Note
Use shielded four-wire cable for the process temperature connection.
2. Connect the RTD cable to the Rosemount 3051SMV by inserting the
cable wires through the unused housing conduit and connect to the
four screws on the transmitter terminal block. An appropriate cable
gland should be used to seal the conduit opening around the cable.
3. Connect the RTD cable shield wire to the ground lug in the housing.
October 2018 Quick Start Guide
Quick Start Guide 13

Emerson Rosemount MultiVariable 3051S Series Specifications

General

Type	MultiVariable Transmitter
Accuracy	±0.04% of span
Ambient Temperature Limit	-40 to 185 °F (-40 to 85 °C)
Approvals	FM, CSA, ATEX, IECEx
Service	Liquid, Gas, Steam
Warranty	5 years
Process Temperature Range	-40 to 257°F (-40 to 125°C)
Response Time	100 ms
Power Supply	10.5 to 42 V DC
Communication Protocols	HART, FOUNDATION Fieldbus, PROFIBUS
Housing Material	Aluminum
Display	Optional LCD
Process Connection	1/4" NPT
Electrical Connection	1/2–14 NPT, M20 x 1.5
Enclosure Rating	NEMA 4X, IP66
Measurement Types	Differential Pressure, Static Pressure, Temperature