User's Manual

Motor Condition Monitoring System Manual: Wireless Hardware
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1 Device configuration
Wireless motor condition monitoring system consists of the following devices.
i. Acceleration sensor probe: sMICA-ACC
ii. sMICA-ACC has two built-in MEMS accelerometers (1 axis high frequency + 3
axis) and temperature sensor. The probe is installed directly on the object to be
measured (Motor, etc.). sMICA-ACC supplies power and sends sensor signals
via a dedicated M8 connector cable (2m). Sensor cable is shielded to minimize
the effects from the electromagnetic noise. The range of the accelerometer
sensor is ±50g, but in order to increase the resolution, only the ±12.5g portion
is acquired by the microcontroller ADC. Please contact us if you need a wider
range of acceleration.
Remarks: High performance high frequency acceleration measurement axis
General acceleration measurement axis
iii. Wireless sensor box: rMICA-vibration
rMICA-vibration consists of a 32-bit microcomputer STM32 and a 920MHz
wireless module, a long-life large capacity battery. One sMICA sensor and the
dedicated sensor are connected to rMCIA-vibration. rMICA-vibration starts
Sensor connector