The 41CA Two Channel Charge Amplifier is used to convert accelerometer charge signals into voltage signals. Converted signals are then easily used by the PBS-4100 family of vibration analyzers. Two channels of amplification are provided. Each channel has separate gain and switchable test signals. Features Input Signal Configuration: Differential or Single Ended Channel gain settings: 1, 4, 10 mV/pC Highpass filter options: 0, 10, 15, 20, 25 Hz Lowpass filter options: 10K, 5K, 2K, 500 Hz