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E-DWT-H offers precision, low measurement uncertainty and the stability over time of a conventional deadweight tester without the inconveniences associated with the piston-cylinders, weights, hand pumps, and interconnecting plumbing.

• ± 0.02% of reading measurement uncertainty

• No weights to load and unload or regularly send out for calibration

• No need to know and correct for local gravity or ambient temperature

• No piston-cylinder changes; switch Q-RPT ranges in seconds

• Not sensitive to level or vibration

• Able to set and read any pressure value exactly, no minimum increment limited by

smallest available masses

• Operates in any unit of measure while deadweight tester is typically limited to the pressure unit

stamped on the mass

• Perfect for applications that require setting a nominal pressure precisely on the device under test

and measuring it, such as analog gauge calibration

• On-board, AutoTest calibration routines and data acquisition

• Interfaceable with a PC or laptop to allow for automated data acquisition

• Two year calibration interval supported at measurement uncertainty of ± 0.025% of reading.

• Easily recalibrated without crossfloating. Automated calibration of E-DWT-H is possible using

COMPASS® for Pressure software.

Q-RPT (quartz reference pressure transducer) module advantages:

In addition to outstanding metrological characteristics, Q-RPT modules offer the advantages of:

• Negligible warm-up time

• Quartz element isolated from test medium

• Minimal sensitivity to orientation

AutoTest™ lets E-DWT operators quickly define test points and adjust all of the range-dependent settings with a single function.

The resolution and stability test used by the RPM4-E-DWT are set according to the range of the device under test. The upper limit setting is also set and provides range-based warnings and overpressure protection. While running AutoTests, the operator is prompted to set each sequential test point and test data is stored in the RPM4-E-DWT for recall or download. Typical test setup is quick and easy, but more complex tests can also be stored and reused.

One year measurement uncertainty is ± 0.02% of reading from 10% to 100% (1 Q-RPT) or from
1% to 100% (2 Q-RPT).

Low torque variable volume allows for pressure generation up to 200 MPa (30,000 psi) with minimal physical effort.

AutoRange feature optimizes measurement, control and safety features for the specific range of the instrument being calibrated.

E-DWT-H includes everything to generate, set and read pressure in one compact, transportable package and the rechargeable battery pack option provides for eight hours of field operation.

E-DWT-H includes flash memory for simple and free embedded software upgrades.