2-Channel FlexSmart TRMS Module

A 15-bit two-channel 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.

Documentation

Highlighted Features

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

Specifications

Parameter	Description
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

Applications

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