Page 2
DH Instruments, a Fluke Company 4765 East Beautiful Lane, Phoenix AZ 85044-5318, USA. DH Instruments makes sincere efforts to ensure accuracy and quality of its’ published materials; however, no warranty, expressed or implied, is provided.
This manual is intended to provide the user with the basic information necessary to operate an E-DWT-10000-AF electronic deadweight tester (Portable Hydraulic Gauge Calibrator). It also includes a great deal of additional information provided to allow you to optimize the use of the instrument and take full advantage of its many features and functions.
The E-DWT includes the hardware necessary to fill the system under test with oil and generate and precisely adjust pressure across the E-DWT’s 10 000 psi (70 MPa) range. The E-DWT-10000-AF system is delivered in a rugged, molded plastic transport case and includes two battery/charger packs.
PRESSURE MEASUREMENT SPECIFICATIONS 1.2.3.1 REFERENCE PRESSURE TRANSDUCERS (RPT) E-DWT-10000-AF is configured with two quartz reference pressure transducer (Q-RPT) modules to measure pressure. The Q-RPTs are intrinsically absolute, operating against a sealed vacuum reference. Gauge pressure is defined by offsetting atmospheric pressure and applying dynamic compensation for atmospheric changes using the on-board barometer (see Section 3.9.1).
E-DWT-10000-AF complete with accessories is delivered in a reusable, molded plastic shipping container with polyurethane inserts to hold it in place. Remove the E-DWT-10000-AF and its accessories from the shipping container and remove each element from its protective plastic bag.
E-DWT-10000-AF OPERATION AND MAINTENANCE MANUAL SITE REQUIREMENTS Install E-DWT-10000-AF on a flat, stable surface at a convenient height. If using the battery/charger pack, consider its placement. When used with its battery/charger pack, E-DWT-10000-AF requires no external support facilities. If not using the battery, an electrical power source of 100 to 240VAC, 50-60 Hz is required.
Rotate the variable volume handle CCW to reduce pressure to about 100 psi (700 kPa) and open the reservoir shut off valve. SHORT TERM STORAGE The following is recommended for short term storage (not shipping or transport) of E-DWT-10000-AF: • Open the reservoir shut off valve.
The following is recommended for long term storage and/or shipping of E-DWT-10000-AF: E-DWT-10000-AF is designed to be shipped with its reservoir full of calibration fluid. If the instructions below are followed carefully, it is not necessary to empty the reservoir prior to shipment.
3.1.1 MULTIPLE RANGES (HI AND LO Q-RPT, AUTORANGE) The E-DWT-10000-AF’s Reference Pressure Monitor (RPM4-E-DWT) has two Quartz Reference Pressure Transducers (Q-RPTs). The A70M (10 000 psi) Q-RPT is designated the Hi Q-RPT. The A7M (1 000 psi) Q-RPT is designated the Lo Q-RPT. Which Q-RPT is currently active is indicated continuously by characters in the upper right hand corner of the MAIN RUN screen and most other screens.
DH500 is equivalent to AE F250C, HIP HF4, etc. The E-DWT-10000-AF system is delivered with two adaptors to adapt the DH500 F TEST port fitting to 1/4 in. NPT F or 1/8 in. NPT F.
NEVER plug, obstruct or connect a supply pressure to the RPM4-E-DWT Q-RPT module ATM ports. This may adversely affect operation and AutoZeroing functions. BATTERY/CHARGER PACK E-DWT-10000-AF is delivered with two (2) 12 VDC battery/charger packs to supply power to the E-DWT’s reference pressure monitor. The battery/charger pack combines a battery and battery charger.
E-DWT-10000-AF OPERATION AND MAINTENANCE MANUAL PRESSURE GENERATION AND ADJUSTMENT E-DWT-10000-AF has three means for generating and adjusting pressure, including filling and priming the test system. The reservoir pump is used to fill and prime the test system (see Section 3.5.1). It is important to remove air from the test system by filling and priming it before using the variable volume to generate pressure.
RPM4-E-DWT USER INTERFACE The E-DWT-10000-AF’s RPM4-E-DWT A70M/A7M-AF reference pressure indicator is designed to offer the optimum balance between simple, straight forward operation and the availability of a wide variety of functions with a high level of operator discretion if desired.
(see Section 3.9.6). The units available under the UNIT function can be reset to default by reset (see Section 3.9.9.2). 3.7.4 [MODE] PURPOSE Not used in E-DWT-10000-AF’s RPM4-E-DWT A70M/A7M-AF. Measurement mode is always gauge (difference from atmospheric pressure). 3.7.5 ANGE...
For rapid assistance in specific situations see Chapter 6 for troubleshooting information. Unauthorized service or repair of E-DWT-10000-AF during the warranty period is undertaken at the owner’s risk and may cause damage that is not covered under warranty and/or may void the warranty. For warranty service, contact a DHI Authorized Service Provider (see Table 25).
Q-RPT calibrations can be performed without using CalTool software (see Section 5.3.7). CalTool for RPTs software supports the calibration process of RPM4-E-DWT Q-RPTs. CalTool and its documentation are provided on the E-DWT-10000-AF Support Disk which is delivered with a new E-DWT-10000-AF. CalTool for RPTs can also be downloaded from www.dhinstruments.com.
THE RPM4-E-DWT ONLY BE REMOVED FROM THE E-DWT WHEN DISASSEMBLY IS REQUIRED FOR MAINTENANCE OR REPAIR (see Section 5.5.1). Set the E-DWT-10000-AF on a stable surface near the calibration standard with it’s reference level (TEST port) as close as possible to the calibration standard’s reference level. Consider the high pressure connection that needs to be made to the TEST port on the top of the E-DWT and access to the front panel display, keypad and Lo Q-RPT shut off valve.
To calibrate RPM4-E-DWT Q-RPTs using CalTool software, refer to Sections 5.3.1, 5.3.2, 5.3.3 and 5.3.4 in this manual and then refer to the CalTool for Q-RPTs Software Manual. CalTool for Q-RPTs software and manual are supplied on the E-DWT-10000-AF Support Disk and can be downloaded from www.dhinstruments.com.
E-DWT is not recommended unless required to perform RPM4-E-DWT and/or E-DWT repairs. See Section 5.5.1 if it is necessary to remove the RPM4-E-DWT from the E-DWT. Any or all of the following items may be included as part of an E-DWT-10000-AF overhaul: •...
CLOSE position. Plug the test port and close the reservoir shutoff valve. Place the E-DWT-10000-AF on it’s left side and remove two of the variable volume handles to allow the E-DWT-10000-AF to lay flat on its side. Remove the screws from the perimeter of the side panel using a 2 mm Allen head wrench.
PMAX has been exceeded. A spare rupture disk is not provided with the E-DWT-10000-AF system. If a replacement disk is required, it will need to be procured from the manufacturer.
8. WARRANTY OVERVIEW Except to the extent limited or otherwise provided herein, DH Instruments, a Fluke Company warrants for one year from purchase, each new product sold by it or one of its authorized distributors, only against defects in workmanship and/or materials under normal service and use. Products which have been changed or altered in any manner from their original design, or which are improperly or defectively installed, serviced or used are not covered by this warranty.
Need help?
Do you have a question about the E-DWT-10000-AF and is the answer not in the manual?
Questions and answers