• FLUKE

Electronic Deadweight Tester, E-DWT-H

DHI (a Fluke company) has introduced the new E-DWT-H electronic calibrator designed to replace mechanical, piston-cylinder and weight based deadweight testers. It’s a lighter weight, easier-to-use deadweight tester alternative that is at home in the lab or instrument shop, as well as in the field performing in-situ calibrations and tests. 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. 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. E-DWT-H can be configured to provide uncertainty of ± 0.02% of reading from 1% to 100% of full-scale range. Low torque variable volume allows for pressure generation up to 200 MPa (30,000 psi) with minimal physical effort. AutoRange feature optimises measurement, control and safety features for the specific range of the instrument being calibrated. E-DWT-H includes everything to set, adjust and read pressure in one compact, transportable package and the rechargeable battery pack option provides for eight hours of field operation. It also includes flash memory for simple and free embedded software upgrades.