Transducer; Synchronization Of Carrier Frequencies - HBM MP85A Operating Manual

MP85A process controller

3.4 Transducer

Two transducers can be connected to screw terminals 5 and 6, independently
of one another. The two measurement channels are parameterized using the
PME Assistant (menu: Transducer).

3.4.1 Synchronization of carrier frequencies

Synchronization prevents interferences occurring due to small differences in
the carrier frequencies of the individual amplifiers, i.e that amplifiers disturb
each other.
Synchronization is advisable for transducers with carrier frequency excitation
when
D the transducer cables of several devices run side by side
D the measuring points are unshielded and are close together
Even if devices work without a CAN bus, the flat ribbon cable should always
be used for synchronization between them, see Section 2.2 on Page 14.
WARNING
To synchronize several devices, declare one device as master and set all
other devices as slaves. Setting is implemented via the PME Assistant
program (menu: Basic settings −> Hardware synchronization).
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HBM