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Fluke 6531-7M (E-DWT-H) Electronic Deadweight Tester
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Includes: E-DWT-H Electronic Deadweight Tester with power supply and operating manual, Vacuum liquid fill kit, Test station quick-mount fitting, NPT adapters: 1/8 in, 1/4 in, 3/8 in and 1/2 in, BSP adapters: 1/8 in, 1/4 in, 3/8 in and 1/2 in, Metric adapters: M20 x 1.5 and M14 x 1.5.
Ordering Information: 6531-7M E-DWT-H A7M, 0.7 to 7 MPa, 100 to 1,000 psi.
The Fluke calibration 6531 (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 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.
It can operate with a wide selection of test mediums, including Sebacate calibration fluid, mineral oil, water and other liquids. ± 0.02 % of reading total one-year measurement uncertainty rivals the best laboratory deadweight testers. The E-DWT’s electronic reference pressure monitor is a special version of RPM4, designated RPM4-E-DWT. RPM4-E-DWT can be configured with one or two high precision quartz reference pressure transducers (Q-RPTs) with ranges from 7 MPa (1 000 psi) to 200 MPa (30 000 psi).
The RPM4-E-DWT is controlled locally by the operator using its front panel display, keypad and optional foot pedal or remotely by a computer using ASCII character command strings over its RS-232 interface.
Model 6531 options feature E-DWT-H configurations with a single quartz reference pressure transducer (Q-RPT) to offer percent of reading performance from 10 % to 100 % of device full scale.
FEATURES
Pressure ranges available to 200 MPa (30,000 psi).
± 0.02 % of reading total one-year accuracy, 0.025 % for two years.
Low torque variable volume allows for pressure generation and control up to 200 MPa (30,000 psi) with minimal physical effort.
Built-in priming system to fill system with test fluid and purge unwanted air to assure smooth operation.
Unique test port design eliminates the need for PTFE tape or wrenches.
Compatible with a wide range of liquids, including water. Vacuum fill kit included to fill the E-DWT with any compatible test medium.
AutoTest™, AutoRange, ready/not ready indicator, onboard data capture and storage, overpressure alarm, RS-232 remote interface.
Optional foot switch accessory allows hands-free data collection when running AutoTests.
Rechargeable battery pack and transport case options for field operation.
Fluke E-DWT-H Introduction Video
Fluke 6531-7M Specifications
| Power Requirements | |
| To RPM4-E-DWT | 12 V dc 1.2 A. |
| To AC to DC power supply | 100 V ac to 240 V ac, 50/60 Hz. |
| Temperature Range | |
| Storage | - 20 °C to 70 °C. |
| Operating | 10 °C to 40 °C. |
| Relative Humidity | |
| Storage | 0 % to 100 %. |
| Operating | 0 % to 70 %. |
| Weight | |
| 1 Q-RPT | 12 kg (26 lb) approximate. |
| 2 Q-RPT | 14 kg (30 lb) approximate. |
| Dimensions | |
| E-DWT footprint | 41.4 cm W x 37.1 cm D (16.3 in x 14.6 in). |
| E-DWT height | 26.9 cm (10.6 in), 33.6 cm (13.2 in) to max variable volume handle height. |
| Pressure range | Up to 200 MPa (30k psi), depending on configuration. |
| Operating medium | All 6531 and 6532 E-DWT Kits are shipped dry, standard preparation. Can be filled with di-ethyl-hexyl sebacate, silicon oils, propylene glycol, fully fluorinated liquids, partially fluorinated liquids, isopropyl alcohol and distilled water or mineral oil. |
| Reservoir capacity | 300 cc (18 in3). |
| Variable volume displacement | 3 cc (0.18 in3), 200 MPa (30,000 psi) maximum. |
| Filling and priming pump displacement | 3.7 cc (0.23 in3). |
| TEST pressure connection | DH500 female, 200 MPa (30k psi) maximum working pressure. Adapters included for 1/8 in, 1/4 in, 3/8 in and 1/2 in NPT, 1/8 in, 1/4 in, 3/8 in and 1/2 in BSP, M20 x 1.5 and M14 x 1.5. Adapter maximum working pressure is 140 MPa (20k psi). Note: DH500 is a gland and collar type fitting for 6 mm (1/4 in) coned and left hand threaded tubes equivalent to AE F250C, HIP HF4, 9/16-18 UNF, etc. |
| Pressure Limits | |
| Maximum Working Pressure | Range of RPM4-E-DWT monitor’s Hi Q-RPT. |
| Maximum priming pump pressure | 700 kPa (100 psi). |
| Maximum Working Pressure | with Lo Q-RPT selected: Range of RPM4-E-DWT monitor’s Lo Q-RPT. |
| Communication ports | RS-232 (COM1, COM2). |
| Pressure Measurement | |
| Warm up time | 15 minute temperature stabilization recommended from cold power up. |
| Normal Operating Temperature Range | 10 °C to 40 °C (50 °F to 104 °F). |
| Resolution | Default: 0.01 % of active range User adjustable to 1 ppm of Q-RPT maximum or 10 ppm of active AutoRange, whichever is larger. |
| Precision1 | 200 MPa (30,000 psi) ranges: ± 0.018 % of reading or 0.0036 % of Q-RPT span, whichever is greater All other ranges: ± 0.018 % of reading or 0.0018 % of Q-RPT span, whichever is greater. |
| Predicted Stability2 | |
| One year | ± 0.0075 % of reading. |
| Two year | ± 0.015 % of reading. |
| Measurement Uncertainty3 | |
| One year | 200 MPa (30,000 psi) ranges: ± 0.02 % of reading or 0.004 % of Q-RPT span, whichever is greater All other ranges: ± 0.02 % of reading or 0.002 % of Q-RPT span, whichever is greater. |
| Two year | 200 MPa (30,000 psi) ranges: ± 0.025 % of reading or 0.005 % of Q-RPT span, whichever is greater All other ranges: ± 0.025 % of reading or 0.0025 % of Q-RPT span, whichever is greater. |
| 1. Combined linearity, hysteresis, and repeatability. Precision does not include stability or calibration reference uncertainty. 2. Predicted Q-RPT measurement stability limit (k=2) assuming regular use of AutoZero function and short term stability between rezeroing. 3. Maximum deviation of the Q-RPT indication from the true value of applied pressure including precision, predicted stability with rezeroing, temperature effect from 10 ºC to 40 ºC and calibration uncertainty (assumes calibration reference uncertainty of ±0.005 % of reading, k=2), combined and expanded (k=2) following the ISO “Guide to the Expression of Uncertainty in Measurement. |
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| COMPONENT PARTS | DESCRIPTION | PART No. | ||
| FOOTSWITCH-E-DWT | Footswitch, Remote Enter, E-DWT or HPMS. | 3122824 | ||
| P5540 | Adaptor Set - Metric. | 4910310 | ||
| P5541 | Adaptor Set - BSP. | 3875937 | ||
| P5542 | Adaptor Set - NPT. | 3875943 | ||
16 other products in the same category:
Contact us for lead time.
Includes: E-DWT-H Electronic Deadweight Tester with power supply and operating manual, Vacuum liquid fill kit, Test station quick-mount fitting, NPT adapters: 1/8 in, 1/4 in, 3/8 in and 1/2 in, BSP adapters: 1/8 in, 1/4 in, 3/8 in and 1/2 in, Metric adapters: M20 x 1.5 and M14 x 1.5.
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