DYC Cable

The coils in a magtube need an excitation signal, which is generated in the converter. The resulting raw flow velocity signal in the magtube is a relatively low level signal, easily distorted by noise, ground loops, or electrical interference.

The converter, the electronics box, generates the excitation signal and it does the calculations on that low level raw signal to get a real-world flow rate value. The converter is sometimes mounted directly on the magtube (integral mount) or at some distance from the magtube (remote mount). Remote mounting requires wiring between the converter and the magtube.

To get an unadulterated excitation signal to the magtube and to get an unadulterated low level flow rate raw signal back from the magtube, ALL magmeter manufacturers offer a cable of specific wire gauge, capacitance and inductance ratings and specific shielding designed to provide optimal signal transfer between the converter and the magtube.

Some manufacturers publish specs on their cabling. This allows customers to provide cabling other than factory cabling that meets the factory spec. Here's a cable spec from Siemens:

Furthermore, some special functions, like "empty sensor" detection rely special cabling.

If you want factory performance from a magmeter, all the components. have to meet a factory spec.

Unless substituted wire cabling meets the factory spec, then diminished performance is the likely outcome.