| SP Series of Low Frequency Piezoelectric Seismic Transducers The SP series of Piezoelectric Transducers are robust, portable, sealed instruments suitable for operation in any attitude without modification. The SP4 unique inertial system of matched piezoelectric elements arranged in a reciprocal configuration generates high output sensitivity and minimum noise with a capability for complete transducer verification through an input calibration facility. Outputs proportional to ground acceleration or ground velocity are available with sensitivities of up to 50V/g.The sealed stainless steel casing makes the instruments particularly suited for field operation and with the optional waterproof connector, for underwater applications. Available in single axis and three axis (X,Y & Z) configurations. Frequency Response down to 0.1 Hz Acceleration Sensitivities up to 50V/g Velocity Sensitivities up to 2000V/m/s Dynamic Range >l20dB Linearity better than 0.1 % Hermetically Sealed Cross Axis Sensitivity <l% Voltage or Current Outputs -30°Cto+l40°C ATEX'Intrinsically Safe'Versions |