Paroscientific manufactures and sells a complete line of high precision pressure instrumentation. Resolution of better than 0.0001% and typical accuracy of 0.01% are achieved even under harsh environmental conditions. Superior resolution and accuracy comparable to the primary standards make the Digiquartz® Transducers essential for a variety of application areas where high resolution, accuracy, reliability, ruggedness, long-term stability, low power consumption and low cost of ownership are important requirements.

The performance of these transducers is achieved through the use of a precision quartz crystal resonator whose frequency of oscillation varies with pressure induced stress. A quartz crystal temperature signal is provided to thermally compensate the calculated pressure and achieve high accuracy over a broad range of temperatures. The transducers include integral shock protection to withstand extremely high acceleration, shock, and vibrational loads.

A Quality Management System that is certified to the requirements of the ISO 9001:2000 International Quality Management System provides consistency in our products and processes from design and development through production, calibration, test, and servicing. Our quality system and commitment to excellence ensure customers of outstanding products and services. As a result, we offer a market-leading five year limited warranty on all Digiquartz® Transducers with the first two years covered at 100%.

FEATURES

• 0.01% Accuracy
• 0.0001% Resolution
• Frequency Outputs
• Low Power Consumption
• NIST Traceable Calibration
• High Stability and Reliability
• On-Board Application Memory
• ISO 9001:2000 Quality System
• Fully Calibrated and Characterized
• On-Board Coefficient Storage (DDS)

APPLICATION AREAS

• Metrology
• Hydrology
• Aerospace
• Meteorology
• Oceanography
• Laboratory Standards

PERFORMANCE
Repeatability ........... Better than ±0.005% Full Scale
Hysteresis ........... Better than ±0.005% Full Scale
Acceleration Sensitivity ........... ±0.0038% Full Scale /g

CHARACTERISTICS
Pressure signal is a frequency output with a 10% frequency change within the frequency band 30 kHz to 42 kHz.

Temperature signal is a frequency output with a 45 ppm/°C sensitivity within the band 168 kHz to 172 kHz.

Both pressure and temperature output signals are nominally square waves of 4 volts amplitude peak to peak.

Conformance and temperature compensation equations and calibration coefficients are provided with each transducer.

Weight ........... 15.4 ounces (436 grams) Max
Power Requirements ........... +5 to 16V DC at 1.3 mA Max

ENVIRONMENTAL
Overpressure ........... 1.2 times Full Scale (Model 2500A-101: 1.0 times Full Scale)
Operating Temperature Range ........... -54 °C to +107 °C (-65 °F to 225 °F)