Determining a Location
Maximum wiring distances
If the transmitter is mounted remotely from the sensor, the maximum distance between the sensor and transmitter depends on cable type. See Table 2.
Table 2 Maximum cable lengths
Cable type |
| Wire size | Maximum length | |
Micro Motion |
| Not applicable | 60 feet (20 meters) | |
or core processor |
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Micro Motion | Not applicable | 1000 feet (300 meters) | ||
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Micro Motion | Not applicable | 1000 feet (300 meters) | ||
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Power wires (VDC) | 22 | AWG (0,35 mm2) | 300 feet (90 meters) | |
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| 20 | AWG (0,5 mm2) | 500 feet (150 meters) | |
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| 18 | AWG (0,8 mm2) | 1000 feet (300 meters) | |
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Signal wires | 22 | AWG (0,35 mm2) or larger | 1000 feet (300 meters) | |
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(1) Micro Motion recommends using Micro Motion cable.
Pipe run
Micro Motion sensors do not require a straight run of pipe upstream or downstream.
Valves
After the sensor and transmitter have been installed, you must perform the zeroing procedure. During the zeroing procedure, flow through the sensor must be halted and the sensor tubes must be completely full of process fluid. A shutoff valve, downstream from the sensor, is recommended to halt flow during the zeroing procedure. For more information about zeroing, refer to the instruction manual shipped with the transmitter.
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