Typical power cable resistance at 68 °F (20.0 °C)
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
2.3.1
Maximum cable lengths between sensor and transmitter
The maximum cable length between the sensor and transmitter that are separately
installed is determined by cable type.
Cable type
Wire gauge
Maximum length
Micro Motion 4-wire remote
mount
Not applicable
•
1,000 ft (305 m) without
Ex-approval
•
500 ft (152 m) with IIC
rated sensors
•
1,000 ft (305 m) with IIB
rated sensors
Micro Motion 9-wire remote
mount
Not applicable
60 ft (18 m)
User-supplied 4-wire
VDC 22 AWG (0.326 mm
²
)
300 ft (91 m)
VDC 20 AWG (0.518 mm
²
)
500 ft (152 m)
VDC 18 AWG (0.823 mm
²
)
1,000 ft (305 m)
RS-485 22 AWG (0.326 mm
²
)
or larger
1,000 ft (305 m)
Planning
Installation Manual
February 2020
MMI-20027478
10
Micro Motion 5700 Transmitters with Configurable Outputs
