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Fluke Calibration E-DWT Electronic Deadweight Tester

Brand: Fluke Corporation

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E-DWT-H breaks new ground, improving the hydraulic pressure calibration process.

E-DWT-H is an electronic calibrator designed to replace mechanical, piston-cylinder and weight based deadweight testers.

It’s a lighter, 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.

This complete hydraulic pressure calibration system combines the convenience and precision of continuous, real time electronic pressure measurement with the simple and direct operation of high quality operator controlled pressure generation hardware.

E-DWT-H one year measurement uncertainty is ±0.02% of reading with ranges up to 30,000 psi.

It can be configured to provide this uncertainty from its full scale down to 1% of its range.

Built-in pressure generation and control hardware allow the operator to fill and prime the system under test and generate and precisely adjust pressure throughout the range with ease.

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.

Features

Accuracy and performance

One-year measurement uncertainty is ± 0.02% of reading from 10% to 100% with one Q-RPT, and from 1% to 100% with two Q-RPTs
Low torque variable volume allows for pressure generation up to 200 MPa (30,000 psi) with minimal physical effort
Separate fine adjustment tool for maximum, superfine control resolution
User defined resolution and ready limits enable user to optimize performance based on DUT specifications
High pressure isolation valve and pressure relief valve protect the low pressure reference transducer from over pressure when high pressure reference transducer is active

Ease of use

AutoRange feature optimizes measurement and safety features for the specific range of the instrument being calibrated
Simple rezeroing while vented at atmospheric pressure
Simple, objective pressure “ready/not ready indicator with user adjustable criteria to ensure repeatable results among operators
Not dependent on local gravity or ambient temperature
Sets and reads any pressure value directly in any unit of measure, without moving weights
Built-in priming system to fill system with test fluid and purge unwanted air to assure smooth operation
Optional foot switch accessory allows hands-free data collection when running AutoTests

Portability

Rechargeable battery pack option for eight hours of field operation
Everything to set, adjust and read pressure in one compact, transportable package
Optional shipping/carrying case with handles and wheels allows for easy transport to field application
Proven rugged and weatherproof design with room for accessories.

Automation

RS232 interface allows for real time automated data collection and customized report generation using COMPASS® for Pressure calibration software

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