Onset S-FS-TRMSA FlexSmart TRMS Module (2 channels) Sensor (± 1V, 50/60 Hz)

Input Channels: Two; AC-coupled

Field Wiring: Two-wire via screw terminals on detachable connector, 16-24 AWG

Input Range: 5 to 512 mVRMS 

Minimum Input Voltage 5mVRMS; Input voltages < 5mV will be clipped to zero

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, 6μA sleep (Power is provided by the station 

where the module is installed.) 

Included Items: 

  Detachable screw terminal connector 

  Imprintable label

The S-FS-TRMSA is easy-to-configure, True-RMS input measurement modules. The S-FS-TRMSA is compatible with HOBO® H22 series data loggers. The 2-channel modules have an input range of 512 millivolts RMS full-scale. Thus, they are fully compatible with industry-standard voltage and current transformers (PT and CT) which output 333 millivolts RMS full-scale. The modules feature extremely low-power operation, resulting in long battery life for unattended data logging applications.

Manual