The Digiducer 333D01 is a convenient way to acquire single channel acceleration for route-based maintenance. Along with m+p Analyzer (mpA) and a simple handheld tablet you can take powerful measurements for a low-cost. Since the 333D01 appears as an audio input device, setting the sensitivity of the unit in mpA is not as plug-and-play as our m+p devices. The following guide will help! 

Instructions to Configure the Digiducer 333D01

Step 1: Connect the TMS 333D01 to the PC

• Physically connect the unit
• Ensure drivers are installed (if needed)
• Ensure that the unit is available under audio devices
  • Open Start Menu
  • Type "Sound" and open Sound Settings from search results
  • Under Input, see that the 333D01 is available as shown below
    

Step 2: Set the Audio Device

• Close m+p Analyzer, if open. 
• Open the m+p Analyzer Hardware Selector program (Start Menu -> m+p Analyzer X.X.X.XXX -> Hardware Selector)
• Choose Audio Device
• Click Select Audio Device box
• Replace "Microphone" with "333D01" so that the line reads Master=333D01
• Save and Close Notepad
• Select OK to close the hardware selector

  
  

  

Step 3: Check the Device in m+p Analyzer

• Open m+p Analyzer
• In the Transducers tab of the Configuration menu, the 333D01 should appear in the Modules column.

Step 4: Set the Sensitivity in mpA

• To calculate the sensitivity, locate the sensitivity in Counts/m/s²for each channel in one of two ways
  • Via box as Channel A/B sensitivity
  • Via Device Manager as shown below underlined in red and green. 
    • Numerical identifier is as follows: (333D01 XXNNNNNBBBBBAAAAAXXXXXX)
    • X = Leading/trailing number
    • N = Serial Number
    • B = Channel B sensitivity count
    • A = Channel A sensitivity count
• Plug in the count number into the following calculation or use the attached XLSX Calculator
• mpA Sensitivity = 1000 / 8388608 * [counts] mV/(m/s²)
  or
  mpA Sensitivity = 1000 / 8388608 * [counts] *9,81 mV/g
• Note: above is true for transducer sensitivity of 36750 counts/(m/s²) which is the datasheet nominal value
• Set the Windows Setting for Microphone Gain to zero
• Enter the mpA sensitivity in the Configuration -> Transducers tab for the unit of your choice.

More information can be found at https://digiducer.com/pages/specifications