Closed-face transducers

328ET/R250

Enclosed transmitter / receiver pair — A 32.8 kHz enclosed transmitter and receiver family with a 33° typical beam.

328ET/R250 enclosed transmitter / receiver pair

Product image from catalog

Product overview

Enclosed transmitter / receiver pair

Catalog listed

A 32.8 kHz enclosed transmitter and receiver family with a 33° typical beam.

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Published selection data
Center frequency32.8 ±1.0 kHz
Bandwidth (-6 dB)1.0 kHz
Transmitting SPL113 dB min. (107 dB min. SUS316)
Receiving sensitivity-67 dB min. (-70 dB min. SUS316)
Capacitance at 1 kHz2400 pF ±20%
Maximum continuous drive20 Vrms
Beam angle (-6 dB)33° typical
Operating temperature-30 to 70°C
Storage temperature-40 to 80°C

Listed models and configurations

  • 328ET250 transmitter
  • 328ER250 receiver
  • 328ET/R25B black-painted housing
  • 328ET/R25S stainless-steel housing
Catalog source: Specifications are transcribed from the 50-page Advantage TMS / Pro-Wave website catalog reviewed July 28, 2026. Values are typically stated at 25°C unless noted. Always request the current controlled datasheet, drawing, and revision before design release or purchase.

Selection guidance

Confirm performance in the complete system

Mounting, enclosure geometry, target material, temperature, airflow, electrical drive, gain, timing, and signal processing can materially change ultrasonic performance.

32.8Nominal frequency value or range in kHz unless shown otherwise
25°CTypical catalog reference condition
OEMApplication and integration support
RFQCurrent availability and controlled documents

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