Frequency Input - Signal Converters, Transmitters

• Multi-range 0Hz to 100KHz frequency input
• Multi-range 0Hz to 3KHz PWM input
• 4-20mA output (sink/source)
• 12-32V DC power

The TT239 model is a space-saving two-wire transmitter that isolates and converts a frequency, pulse, or pulse-width modulation (PWM) input to a proportional 4-20mA signal. You can select to measure either the input frequency or the duty cycle. Power is received from the output loop current or a DC supply when using a three-wire connection. Click here to watch a short AcroMaggie video highlighting the TT230 Series.    

• Multi-range 0Hz to 100KHz input
• Universal current/voltage output
• 12-32V DC local/bus power

The TT339 model is a space-saving four-wire transmitter that isolates and converts a frequency or pulse input to a proportional control signal. DC current and voltage output are both supported on a single model. An optional DIN rail bus can deliver primary or redundant power to multiple units without wiring. Click here to watch a short video highlighting the TT330 Series.

• 0 to 50KHz, 0 to 65535 pulses input
• 0 to 20mA DC, 0 to 10V DC output
• Mechanical alarm relay (25V @ 5A)
• 10-36V DC power
• Software configured; pulse counter; signal averaging; optional limit alarm functions

These transmitters isolate and convert sensor inputs to noise-free, proportional DC current or voltage output signals. An optional relay output adds a local limit alarm function.

• 0 to 25.6KHz frequency input range
• DC voltage or DC current output
• DIN rail G or T mount

These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.