Emerson Micro Motion

Cable sizing formula
M = 18V + (R x L x 0.2A)
• M: minimum supply voltage
• R: cable resistance
• L: cable length
Typical power cable resistance at 68 °F (20 °C)Table 1-1:
Wire gauge Resistance
14 AWG 0.0050 Ω/ft
16 AWG 0.0080 Ω/ft
18 AWG 0.0128 Ω/ft
20 AWG 0.0204 Ω/ft
2.5 mm
2
0.0136 Ω/m
1.5 mm
2
0.0228 Ω/m
1.0 mm
2
0.0340 Ω/m
0.75 mm
2
0.0460 Ω/m
0.50 mm
2
0.0680 Ω/m
Planning
Quick Start Guide 3