Fluke Calibration

6531 / 6532 E-DWT Electronic Deadweight Tester Kit

A powerful, complete hydraulic pressure calibration system to cover a wide workload

Starting At
$37,987.00 CAD
Normally ships in 1-2 Weeks

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Fluke Calibration improved the hydraulic pressure calibration process with the introduction of E-DWT-H electronic deadweight tester. E-DWT-H is an electronic calibrator designed to deliver traditional hydraulic deadweight tester performance with digital measurement features and convenience.

Some improvements offered by E-DWT-H include:
• No weights to load and unload, transport or send out for calibration
• Provides real-time pressure indication with no need to know and correct for local gravity or ambient temperature
• No piston-cylinder changes
• No significant sensitivity to level or vibration
• Able to set and read any pressure value exactly, no minimum increment limited by smallest available masses; perfect for applications that require setting a nominal pressure precisely on the device under test and measuring it, such as analog gauge calibration
• Operates in any unit of measure, switching easily from one unit to the next

The E-DWT-H is at home in metrology and calibration labs, on the production floor or in the field. 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.

• Electronic reference pressure monitor that can be configured with one or two high precision quartz reference pressure transducers
• 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
• AutoRange feature automatically selects the most appropriate Q-RPT and optimizes the setup to cover the desired range of operations
• Includes the hardware necessary to fill and prime the system under test and generate
• Precisely adjusts pressure up to 200 MPa (30 000 PSI)
• Can be powered with an optional battery/charger pack for use in locations where AC power is not readily available

Power Requirements To RPM4-E-DWT: 12 VDC, 1.2 A
To AC to DC power supply: 100 VAC - 240 VAC, 50/60 Hz
Temperature Range Storage: - 20C - 70C
Operating: 10C - 40C
Relative Humidity Storage: 0% - 100%
Operating: 0% - 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.
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)
Warm-Up Time 15 min temperature stabilization recommended from cold power up
Normal Operating Temperature Range 10C - 40C (50F - 104F)
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
Precision[1] 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 Stability[2] One year: +/- 0.0075% of reading
Two year: +/- 0.015% of reading
Measurement Uncertainty, One Year[3] 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, Measurement Uncertainty, One Year[3]whichever is greater
Measurement Uncertainty, Two Years[3] 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 10C - 40C and calibration uncertainty