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We are offering two channels charge conditioning amplifier. 1. Overview charge amplifier type naws-2401 is a four functions amplifier consisting of charge amplifier, voltage amplifier, low-pass filter and integrator. It is a comprehensively equipped charge conditioning amplifier. It can be powered from external batt eries dc or ac power supply, making it useful both experiment in the field test and in the laboratory. 2. Main features anti-alias low-pass filtersmall size, light weight, stable and reliable3 digit conditioning to transducer sensitivity switchable for charge and voltage input modepiezoelectric transducers, velocity and displacement ensors can be connect to the amplifierbuilt-in integrators for velocity and displacementpower supply is ac or dc 3. Technical specifications type: naws-2401/2input channel: 2sensitivity conditioning: 3 digital dial-in of sensitivityinput range: 0.1pc to 50000pc for charge0.1vp to 5vp for voltageinput connector: 10-32nf for charge inputfemale bnc for voltage inputoutput connector: female bncinput mode: switchable with charge or voltage input modefrequency range: 0.16hz to 20khz for chargedc to 20khz for voltage(through)1hz to 20khz for voltage(blocking)integration: one time integrate acceleration to velocity or velocity to displacementtwo time integrate acceleration to displacementlow-pass filter: switchable with 10, 20, 50, 100, 200, 500, 1k, 2k, 5k, 10, 20khz. It is attenuation slope of -120db/octgain:0.001, 0.01, 0.1, 1.0, 10 for charge input 1, 10, 102, 103, 104 for voltage inputtemperature range : -20c to 60c (-4f to 140f) humidity: 0 to 85%rh (non-condensing).