The MTT MS3729 is a slim plug-in analog-to-frequency converter that turns a DC current or voltage signal into a pulse train, the reverse of a typical frequency-to-analog transmitter. That makes it useful wherever a downstream counter, PLC pulse input, or totalizer needs a frequency signal but the only measurement available is a standard 4-20mA or voltage reading, letting the two kinds of equipment talk to each other without a separate interface.
Output frequency can be scaled from a very slow trickle up to 5kHz, with a choice of TTL, open collector, or photo MOS relay output types and a second isolated output available for feeding an independent system at the same time. Like the rest of the plug-in transmitter series, the MS3729 clips into its own socket base for fast swap-out during calibration or maintenance without disturbing the field wiring, and flexible AC or DC power plus wall or DIN rail mounting make it easy to fit into an existing panel.
