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data logger
X2-2

High-Sensitivity 2g USB Accelerometer X2-2

The X2-2 uses a high-sensitivity, low noise, 3-axis, +/-2g accelerometer sensor ideal for low amplitude vibration monitoring. Data is stored at user selectable rates up to 512Hz. The logger operates from an internal 500mAh lithium-polymer rechargeable battery that recharges when connected to a computer USB port. The X2-2 acts as a USB Mass storage device (like a USB flash drive) when connected to a computer, which provides quick and convenient access to data files. Data is stored as plain text Comma Separated Values format (.csv), ready to be imported into any spreadsheet, word processor, or end user application. Read more about our data logger product-line features.

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  • Low cost, compact size (4"x1"x1")
  • High-sensitivity, low noise 3-axis +/-2g accelerometer
  • User selectable sample rates of 8, 16, 32, 64, 128, 256, 512 Hz
  • 15-bit resolution mode
  • Sensor is oversampled 8X and the data processed through FIR filter
  • Internal hardwired rechargeable Lithium-Polymer battery, charges via USB
  • Push button switch to start and stop data recording
  • Easily readable comma separated text data files
  • Accurate (50 PPM) time stamped data using Real Time Clock (RTC)
  • Micro-resolution feature for 0.1 millisecond timing precision
  • Data recorded to a field removable 8Gb microSD card (included)
  • Data transfer compatible with Windows/Linux/Mac via USB interface (no special software required)
  • Extended data logging capability or battery charging using an external 5v USB power source

For more details, specifications, and how to use the X2-2, please refer to the user manual (.pdf). The user manual includes an example data file and instructions for converting the data and time stamps.

The X2-2 logger is configured using a simple text file called config.txt located on the microSD card. Below is an example:

   
        ; Example X2-2 Config file
        ; 2g range
        gain = low
        ; set to record constantly at 128Hz
        samplerate = 128
        deadband = 0
        ; set file length
        samplesperfile = 192000
        ; LEDs on
        statusindicators = normal
        ; make device start upon USB disconnect 
        rebootondisconnects

Data is stored to simple text formatted .csv type files, which are easily imported into any spreadsheet or analysis software (Matlab, Octave, R, etc). Below is a example data file:

   
        ;Title, http://www.gcdataconcepts.com, x2-2,Kionix KXRB5-2050
        ;Version, 638, Build date, Apr 22 2014,  SN:CCDC1002131D68D
        ;Start_time, 2014-04-23, 10:04:37.000
        ;Temperature, 25.25, deg C,  Vbat, 4178, mv
        ;Gain, low
        ;SampleRate, 32,Hz
        ;Deadband, 0, counts
        ;DeadbandTimeout, 0,sec
        ;Headers, time,Ax,Ay,Az
        0.019,-47,185,-6584
        0.051,-55,181,-6591
        0.082,-60,176,-6593
        0.113,-53,176,-6591
        0.144,-44,179,-6595
        0.176,-38,183,-6591
        0.207,-40,191,-6593