Inline charge converters offer a convenient way to use charge accelerometers, which provide output in pC/g, with IEPE input channels. 

Instructions to use set sensitivity for charge converters 

Step 1: Determine the Sensitivity of Both the Charge Converter and Sensor

• The datasheet will list the sensitivity of the charge converter in mV/pC
• The calibration certificate of the accelerometer will list the sensitivity in the engineering unit (EU). Typically pC/g or pC/m/S^2.
• Take note of the sensitivities for the next steps

Step 2: Calculate the sensitivity

• Use the formula to calculate sensitivity
  • Where sA = Accelerometer sensitivity pC/EU
  • Where sC = Charge converter sensitivity mV/pC
  • Sensitivity = sA * sC = mV/EU
• Calculate the range
  • EU Range = 5000/(sA*sC)

Step 3: Enter the sensitivity and range to the software

• In the software, enter the Sensitivity, EU, and Range in the channels tables. 
• Use a calibrated vibration exciter (or other calibration device tuned to the sensor) to verify accuracy of the sensor. 

For example: The sensitivity of an accelerometer at 10 pC/g used with a 10 mV/pC charge converter would be: 
    Sensitivity  =     sA*sC           =  x mV/EU
    Sensitivity  =     10 * 10         =  100 mV/g
For the same scenario as above, the range would be:     
    Range        =     5000/(sA * sC)
    Range        =     5000/(10 * 10)  =  50g

For more information about the PCB Charge converters, please visit the link below: 

https://www.pcb.com/contentstore/MktgContent/LinkedDocuments/Electronics/TM-ELE-422E5x_Lowres.pdf