Emerson Rosemount 3101 Quick Start Manual page 8

Quick Start Guide
4. Connect the cable wires:
a. For the 3101, connect wires according to the
b. For the 3102, connect wires according to the
c. For the 3105, connect wires according to the
5. Connect the cable shield/screen to a suitable ground (earth) at one end only.
6. Replace the cover, tighten the cable gland, and connect the power supply.
Note
The Rosemount 3101 and 3102 are not intrinsically safe and are for use in

non-hazardous (Ordinary Location) installations only.
If HART communications is required (available on the Rosemount 3102 and

3105), a 250 Ohm (minimum), 0.25 W load resistor must be installed in the
loop. When using the Rosemount 3102 or 3105 transmitter with a
Rosemount 3490 Series Control Unit, this resistor is not required.
Figure 3. Wiring Diagram for Rosemount 3101
3101
A. Maximum cable length is 9750 ft. (3000 m)
B. Connect the cable shield/screen to ground (earth) in the control room
C. Cable thickness: Ø0.15 to 0.31 in. (Ø4 to 8 mm)
D. Twisted-pair, screened wires
Minimum size: 0.22 mm
E. Minimum of 12 Vdc is required at the transmitter for it to operate
8
E
2
(24 SWG / 23 AWG); Maximum: 1.5 mm
C
A
September 2018
Figure 3.
Figure 4.
Figure 5.
0 Vdc
12 to 30 Vdc
D
B
2
(16 SWG / 18 AWG)