RKMA-P

PRESSURE SENSING QUARTZ CRYSTAL RESONATOR RKMA-P www.DataSheet4U.com APPLICATIONS RKMA-P is a quartz crystal resonator which is packaged in a rectangular enclosure. The resonance frequency varies with the pressure-induced stress. The crystal unit is designed as a precision electronic pressure sensor for transducer, manometers, and controllers with a frequency output for the conversion of the absolute pressure to frequency. FEATURES - High resolution and accuracy - Long term quartz crystal stability - Wide temperature range (-55…+80 °C) - Low power consumption Suitable for precision pressure equipment ELECTRICAL CHARACTERISTICS (at normal climatic conditions) / OPERATING CONDITIONS PARAMETERS Model Frequency range, fO Resonance resistance typ./max., Rr Drive Level max., DL Insulation Resistance min. SPECIFICATIONS AND REMARKS Electrical characteristics UNITS RKMA-P-1 RKMA-P-3 120; 150 / 200 4.0 400 RKMA-P-4 RKMA-P-2 kHz 150; 200 / 250 kΩ µW MΩ 32.000…48.000 Motional characteristics f(P)=fO +A1*P +A2*P2+ A3*P3, There: f(P) – crystal frequency at pressure P (Hz), fO – crystal’s frequency at zero pressure (Hz), P – pressure (MPa), A1 – Linear coefficient = Sensitivity A2, A3 –second and third order coefficients. Nonlinearity less than 0.4% FS.* Operation conditions Model RKMA-0.1-1 (3;4) RKMA-0.1-2 RKMA-0.25-1 (3;4) RKMA-0.4-1 (3;4) RKMA-0.6-1 (3;4) RKMA-1.0-1 (3;4) RKMA-1.6-1 (3) RKMA-2.5-1 (3) RKMA-4.0-1 (3) RKMA-6.0-1 (3) RKMA-10.0-1 (3) RKMA-16.0-1 (3) RKMA-25.0-1...