FlexSmart TRMS Module (2 channels) Sensor
S-FS-TRMSA FlexSmart TRMS Module (2 channels) Sensor
  • S-FS-TRMSA Image 1

FlexSmart TRMS Module (2 channels) Sensor




The 15-bit two-channel FlexSmart True RMS Current / Voltage Module accepts an input range of 5mV to 512mV and is compatible with 333mV FS output sensors. Field wiring is 2-wire via screw terminals.

  • 2 input channels of AC Current and/or Voltage
  • Measures True RMS for accurate readings of sinusoidal and non-sinusoidal waveforms

In what environment does this sensor operate?

This sensor operates in an indoor environment.

What measurements does this sensor support?

The S-FS-TRMSA sensor supports the following measurements: AC Current and AC Voltage

The country of origin for this product is the United States. To see the full specifications for this product, please see our product manual found under the documentation tab if available.

Input Channels Two; AC-coupled
Field Wiring Two-wire via screw terminals on detachable connector, 16-24 AWG
Replacement detachable connectors: Part of spares kit (A-FS-TRMSA-4P-1)
Input Range 5 to 512 mVRMS
Minimum Input Voltage 5mVRMS; Input voltages < 5mV will be clipped to zero (see graph below)
Maximum Input Voltage ±1V referred to AC- terminals (pins 2 and 4)
Input Frequency 50/60 Hz
Accuracy ±0.3% of reading +/- 0.5% of FSR
ADC Resolution 15 bits
AC Waveform <4 Crest Factor
Power Requirements +3.3V @ 3mA active, 6A sleep
Transfer Function
Measurement Averaging Option Yes
CE Compliant The CE Marking identifies this product as complying with all relevant directives in the European Union (EU).

Minimum Input Voltage Graph

The following are associated resources for this product. In general users of this product can gain insight into its possible use by utilizing the resources below. Our user forum can also be a valuable resource for questions, use cases and general feedback. Share with us today, here!

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