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. 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 remarkable 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 Standard 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.
FEATURES
- 0.01% Accuracy
- 0.0001% Resolution
- Frequency Outputs
- Low Power Consumption
- NIST Traceable Calibration
- High Stability and Reliability
- On-board Coefficient Storage
- On-board Application Memory
- ISO 9001:2000 Quality System
- Fully Calibrated and Characterized
APPLICATION AREAS
- Metrology
- Oceanography
- Oil Well Testing
- Energy Exploration
- Laboratory Standards
- Process Control Systems
- Pressure Calibration Systems
PERFORMANCE
Repeatability ........... Better than ±0.01% Full Scale
Hysteresis ........... Better than ±0.01% Full Scale
30K & 40K ........... Better than ±0.02% Full Scale
Acceleration Sensitivity ........... ±0.008% Full Scale /g (Three axis average)
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
Model 31K ........... 12 ounces (363 grams)
Model 42K, 43K, 46K, 410K ........... 6 ounces (170 grams)
Model 415K, 420K, 430K, 440K ........... 11 ounces (308 grams)
Power Requirements ........... +5 to +12 VDC 1.3 mA
ENVIRONMENTAL
Overpressure ........... 1.2 times Full Scale
Model 30K, 40K ........... 1.1 times Full Scale
Operating Temperature Range
Model 31K ........... -54 °C to +107 °C (-65 °F to 224 °F)
Model 42K, 43K, 46K, 410K ........... 0 °C to +125 °C (32 °F to +257 °F)
Model 415K, 420K, 430K, 440K ........... 0 °C to +50 °C (32 °F to +122 °F)
