Laboratory Pressure Standard
The primary use of Quartzdyne Series DS Transducers in laboratories is for calibrating other downhole transducers and strain gauge / piezoresistive sensors.
Quartzdyne Series DS transducers are used as "in-house pressure standards" for calibrating process transducers. They are also used for a few single point measurements of critical process parameters.
Two Quartzdyne transducers can be used for high stability differential pressure measurement . A common application is measuring the pressure drop across a rock sample in a laboratory measurement of permeability. There are lower cost differential pressure transducers which are more commonly used to measure permeability, but it is easy to demonstrate the cost effectiveness of more accurate measurements. (While most of the permeability measurements use Series DS transducers, some test designs have required higher temperature transducers.)
Where necessary, Series DS transducers can be locally certified to better performance levels than the Quartzdyne calibrations. Some units have been certified (by NAMAS in the UK) to 0.01% of reading over the range of 10% FS to 90% FS. These transducers are certified for use as transfer standards for calibrating (0.03% FS) dead-weight testers.
The DS transducer is available in available in 5,000 psi, 10,000 psi, 20,000, and 30,000 psi variations. These units are delivered with two sets of coefficients. A field range from -40c to 85c and a lab range from 0c to 40c. Specific details about the expected performance and mechanical specifications can be found on our products page.