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.
Page 3: Table Of Contents
Removing from Packaging ........................11 2.1.2 Inspecting Contents ...........................11 Site Requirements..........................11 Setup ..............................12 2.3.1 Preparing for Operation ..........................12 2.3.2 Filling E-DWT-H with Calibration Fluid and Purging Air................12 2.3.3 Setting Up AutoTest Files..........................13 Operational Check..........................13 2.4.1 RPM4-E-DWT Pressure Measurement......................13 2.4.1.1 Single Q-RPT Pressure Measurement.....................13 2.4.1.2...
Page 4 3.9.7 <7INTERN> ..............................67 3.9.7.1 <1BARO> ..............................67 3.9.7.2 <2READRT> ............................68 3.9.7.3 <3RPT2X>..............................68 3.9.7.4 <4LO VNT> ..............................69 3.9.7.5 <5log> ..............................69 3.9.8 <8CAL> ................................69 3.9.9 <9RESET> ..............................69 3.9.9.1 <1SETS> ..............................70 3.9.9.2 <2 Units> ..............................70 © 2009 DH Instruments, a Fluke Company Page II...
Page 5 E-DWT Maintenance ...........................103 5.4.1 E-DWT Overhaul ............................103 5.4.2 Reloading Embedded Software into RPM4-E-DWT Flash Memory............104 5.4.3 Filling E-DWT-H with Calibration Fluid and Purging Air Using the Optional Fill Kit .........104 5.4.4 RPM4-E-DWT Subassembly Description and Location ................105 5.4.4.1 Micro Board ............................105 5.4.4.2 Driver Board ............................105...
Page 7: Tables
Table 14. Program message list ........................ 76 Table 15. Error #s and descriptions ......................77 Table 16. Calibration point sequence for E-DWT-H RPM4-E-DWT Q-RPTs .......... 101 Table 17. Troubleshooting guide ......................107 Table 18. Pressure unit of measure conversion coefficients ..............111 Table 19.
Page 8 E-DWT-H OPERATION AND MAINTENANCE MANUAL Figures Figure 1. E-DWT-H with single Q-RPT, front view..................5 Figure 2. E-DWT-H with dual Q-RPT, front view ..................6 Figure 3. E-DWT-H rear view........................7 Figure 4. RPM4-E-DWT reference pressure monitor front view ..............7 Figure 5.
Page 9: About This Manual
ABOUT THIS MANUAL About This Manual This manual is intended to provide the user with the basic information necessary to operate an E-DWT-H electronic deadweight tester. 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.
Page 11: Introduction
RPM4-E-DWT uses an AutoRange feature to automatically select the most appropriate Q-RPT and to optimize the E-DWT-H setup to cover the desired range of operation. When two Q-RPTs are included, a half-turn valve isolates and protects the Lo Q-RPT from high pressure when the Hi Q-RPT is in use.
Page 12: Specifications
100 MPa (15 000 psi) maximum with high volume (-HV) variable volume Delivered filled with oil (di-ethyl-hexyl sebacate) or dry. Operating medium: Standard E-DWT-H compatible with Sebacate, silicon oils, propylene glycol, fully fluorinated liquids, partially fluorinated liquids, isopropyl alcohol, distilled water.
Page 13: Battery And Charger Pack
(see Section 3.9.1). The complete E-DWT-H model definition includes the Q-RPTs included in its RPM4-E-DWT. For example, an E-DWT-H with A200M and A20M Q-RPTs is designated E-DWT-H A200M/A20M. An E-DWT-H with a single A200M Q-RPT is designated E-DWT-H A200M.
Page 14: On-Board Barometer
On-Board Barometer The measurement uncertainty of the on-board barometer is not significant to E-DWT-H measurement uncertainty. The barometer is used only to measure small, short term changes in atmospheric pressure to provide dynamic compensation of the Q-RPT’s atmospheric pressure offset in gauge pressure measurement mode (see Section 3.9.1)
Page 15: Views And Schematics
Reservoir shut off valve Priming pump Variable volume (screw press) Reservoir cap vent valve Variable volume piston position indicator Reference pressure monitor (RPM4-E-DWT) Figure 1. E-DWT-H with single Q-RPT, front view Page 5 © 2009 DH Instruments, a Fluke Company...
Page 16: Front View, Dual Q-Rpt E-Dwt
Variable volume (screw press) Test shut off valve and fine pressure adjustment Variable volume piston position indicator ‘Lo Q-RPT shut off’ valve position prompt LED Figure 2. E-DWT-H with dual Q-RPT, front view © 2009 DH Instruments, a Fluke Company Page 6...
Page 17: Rear View
RPM4-E-DWT Reference Pressure Monitor Views 1.3.2.1 Front Panel Pressure ready/not ready indicator Remote activity indicator Multi-function keypad 2 x 20 vacuum fluorescent display Cursor control key Figure 4. RPM4-E-DWT reference pressure monitor front view Page 7 © 2009 DH Instruments, a Fluke Company...
Page 18: Rear Panel
Battery charging indicator (green – charging; green flashing – fully charged. ON/OFF switch (ON – battery connected to charger; OFF - battery connected to 12 VDC output/E-DWT) Figure 6. Battery/charger pack front and rear © 2009 DH Instruments, a Fluke Company Page 8...
Page 19: E-Dwt-H Dimensions
TEST2 port (rear) Reservoir Test shut off and fine adjustment valve Hi Q-RPT (ref pressure transducer) Reservoir shut off valve Variable volume (screw press) Figure 8. E-DWT-H with single Q-RPT hydraulic schematic Page 9 © 2009 DH Instruments, a Fluke Company...
Page 20: Dual Q-Rpt E-Dwt-H Schematic
Lo Q-RPT shut off valve Lo Q-RPT (ref pressure transducer) Reservoir shut off valve Hi Q-RPT (ref pressure transducer) Variable volume (screw press) Figure 9. E-DWT-H with dual Q-RPTs hydraulic schematic © 2009 DH Instruments, a Fluke Company Page 10...
Page 21: Unpacking And Inspection
General Accessories Disk 3139043 Site Requirements Install E-DWT-H on a flat, stable surface at a convenient height. If using the battery/charger pack, consider its placement. When used with a battery/charger pack, E-DWT-H requires no external support utilities. If not using the battery, an electrical power source of 100 to 240VAC, 50-60 Hz is required.
Page 22: Setup
If the E-DWT-H has dual Q-RPTs, check that one of the two green Valve Status LEDs on the front of the E-DWT-H is lit. If neither of the green LEDs lights, check that the 12 pin circular connector on the rear panel of the RPM4-E-DWT itself is properly connected to the J1 ACC.
Page 23: Setting Up Autotest Files
Check that one of the two green Valve Status LEDs on the front panel of the E-DWT-H is lit (the red LED should NOT be ON). If neither of the green LEDs on the front panel lights, check that the 12 pin circular connector at the rear of the RPM4-E-DWT itself is properly connected to the J1 ACC.
Page 24: E-Dwt Pressure Generation And Control
(top surface of E-DWT-H) is fully retracted. If the E-DWT-H has dual Q-RPTs, put the Lo Q-RPT shut off valve into the Lo Q-RPT Active position (rotate valve fully CCW). This opens the Lo and Hi Q-RPTs to the E-DWT-H pressure generation and control system.
Page 25: Short Term Storage
If the E-DWT-H has dual Q-RPTs, put the Lo Q-RPT shut off valve into the Lo Q-RPT Shut Off position (valve rotated fully CW). This isolates the Lo Q-RPT from the E-DWT-H pressure generation and control system.
Page 26: Long Term Storage, Preparation For Shipping
The following is recommended for long term storage and/or shipping of E-DWT-H: Note E-DWT-H 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.
Page 27: General Operating Principles
3.1.1 Multiple Ranges (HI and LO Q-RPT, AutoRange) The E-DWT-H’s Reference Pressure Monitor (RPM4-E-DWT) may have one or two Quartz Reference Pressure Transducers (Q-RPTs). The higher range Q-RPT is designated the Hi Q- RPT. The lower range Q-RPT is designated the Lo Q-RPT. Which Q-RPT is active is indicated continuously by characters in the upper right hand corner of the MAIN RUN screen and most other screens (<Hi>...
Page 28: Pressure Ready/Not Ready
The typical operating sequence to run a test is as follows: AutoZero the RPM4-E-DWT: Disconnect the E-DWT-H TEST port. Close the reservoir shut off valve. Press [AutoZ] on the RPM front panel (see Section 3.7.10). © 2009 DH Instruments, a Fluke Company Page 18...
Page 29: Test Port Connection
TEST shut off valve. The RPM4-E-DWT indication may not be zero if the DUT reference height is different from the E-DWT-H reference height and/or if a head correction value is set (see Section 3.7.8).
Page 30: Rpm4-E-Dwt Atm Port(S)
To Use the Battery/Charger Pack to Supply the RPM4-E-DWT After charging the battery, connect the 12VDC connection of the battery/charger pack to the 12VDC connection on the E-DWT-H rear panel. Turn the battery/charger pack power switch to OFF (when AC power is connected to the battery/charger pack, the power switch must be OFF for 12VDC power to be output).
Page 31: Selecting The Hi Or Lo Q-Rpt (Dual Q-Rpt Models Only)
Numerical references in this Section refer to Figure 11. The Lo Q-RPT is connected to or shut off from the rest of the E-DWT-H by the Lo Q-RPT shut off valve that is operated using the valve knob. The proper valve position for the Q-RPT selected is prompted by the Valve Position LEDs (7, 9).
Page 32 Q-RPT shut off valve and selecting the Hi Q-RPT. The E-DWT-H Lo Q-RPT pressure relief valve (Figure 12, Ref 4) is set to open at approximately 110% of the RPM4-E-DWT Lo Q-RPT maximum range. When the pressure applied to the Lo Q-RPT reaches the relief valve setting, the pressure relief valve will open exhausting oil to the reservoir and reduce pressure.
Page 33: Figure 11. E-Dwt-H With Dual Q-Rpt, Front View
Test shut off valve and fine pressure adjustment Variable volume piston position indicator ‘Lo Q-RPT shut off’ valve position prompt LED Note: Items 7 – 10 are present only in dual Q-RPT E-DWT-H models. Figure 11. E-DWT-H with dual Q-RPT, front view Page 23...
Page 34: Pressure Generation And Adjustment
Figure 12. E-DWT-H with dual Q-RPTs hydraulic schematic Pressure Generation And Adjustment E-DWT-H 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.
Page 35: Filling And Priming, Reservoir Pump
Leave an open purge point (for example a loose fitting) at the highest point possible in the test system that is connected to the E-DWT. If not already open, open the TEST shut off valve to connect the E-DWT-H to the test system.
Page 36: Pressure Generation And Rough Adjustment, Variable Volume
Open the TEST shut off valve to connect the variable volume to the test system. If the E-DWT-H is dual Q-RPTs, check that the RPM4-E-DWT Q-RPT selection and Lo Q-RPT shut off valve setting are correct for the pressure range.
Page 37: Pressure Fine Adjustment, Fine Adjust Valve
When using the fine adjust valve to adjust pressure, be sure not to close the valve so that the E-DWT-H is no longer connected to the test system. If turning the valve handle or the variable volume does not change the pressure indicated by both the RPM4-E-DWT and the device under test, the valve is closed.
Page 38: Figure 13. Main Run Screen Display Fields
RPT (dual Q-RPT models only) <F> Display mode is FREEZE and value is last captured reading Blank, no character Current display mode is CLEAN Figure 13. MAIN RUN screen display fields © 2009 DH Instruments, a Fluke Company Page 28...
Page 39: Function / Data Keypad Layout And Protocol
The remote ENTER feature can be particularly convenient when running AutoTests (see Section 3.1.3) in which the operator’s hands are not free or attention is on the device under test rather than the RPM4-E-DWT. Page 29 © 2009 DH Instruments, a Fluke Company...
Page 40: Sounds
Intermittent two second high frequency beep. The audible Q-RPT is being pressurized alarm is combined with flashing of the red, Lo Q-RPT (dual Q-RPT model RPM4-E- Active LED on the E-DWT-H (see Section 3.4, 3.7.2). DWT only) AutoTest in/out of tolerance Ascending triad/descending triad (see Section 3.7.11).
Page 41: Range]
Feature not used in RPM4-E-DWT. range. Choice of units available in this menu can be customized. Run the AutoZ function to AutoZero Not used. E-DWT-H RPM4-E-DWT is gauge the active Q-RPT. mode only. Set up and optimize RPM4-E-DWT Menu of less commonly used internal functions features for a specific operating range.
Page 42: Unit]
E-DWT-H OPERATION AND MAINTENANCE MANUAL In E-DWT-H models with two Q-RPTs, any time a range change causes the active Q-RPT to change, the E-DWT-H Lo Q-RPT shut off valve must be operated to connect or disconnect the Lo Q-RPT from the TEST port. The green Lo Q-RPT valve position LEDs indicate the correct position of the Lo Q-RPT shut off valve knob based on the Q-RPT currently in use (see Section 3.4).
Page 43: Mode]
UNIT function can be reset to default (see Section 3.9.9.2). 3.7.4 [MODE] PURPOSE Not used in E-DWT-H’s RPM4-E-DWT. Measurement mode is always gauge (difference from atmospheric pressure). 3.7.5 [AUTORANGE] PURPOSE To automatically set up the RPM4-E-DWT to optimize its measurement characteristics and features for a specific, user defined pressure range of operation.
Page 44: Table 5. Settings Made By Autorange
AutoRange screens and make changes. Note • In a dual Q-RPT model, the E-DWT-H Lo Q-RPT Shut off valve protects the Lo Q-RPT (1 000 psi max) from overpressure when the Hi Q-RPT is in use. Familiarize yourself with E-DWT-H operation (see Section 3.4) before changing ranges and applying pressures.
Page 45: Leak Ck]
The LEAK CHECK function is provided as a means of checking and quantifying the leaks that may be present in the system connected to the E-DWT-H TEST port. The principle of the LEAK CHECK function is the measurement of the natural decrease or increase of pressure in a fixed volume over time.
Page 46: Display]
RPM4-E-DWT and a target pressure entered by the user (see Section 3.7.7.3). This function is useful in monitoring the evolution of pressure around and/or away from a desired set point. © 2009 DH Instruments, a Fluke Company Page 36...
Page 47: Avg (Average)
Edit field for averaging period in seconds. 20 s Default is 20. Minimum 1, maximum 999. Edit the averaging time period if desired. Press [ENT] to return to the main run screen with the Average DISPLAY active. Page 37 © 2009 DH Instruments, a Fluke Company...
Page 48: Rate
See Section 3.7.7, Principle. • The Rate run screen accesses the AutoTest function (see Section 3.7.11) to AutoRange RPM4-E-DWT based on DUT characteristics. To access AutoTest, press [ENT] from the Rate run screen. © 2009 DH Instruments, a Fluke Company Page 38...
Page 49: Dev (Deviation)
D = current pressure - target pressure With the Deviation DISPLAY active the main run screen is: Deviation of current pressure from the target 8998 psi g value. D -2 T9000.0 Target value. Page 39 © 2009 DH Instruments, a Fluke Company...
Page 50: Rpt
AutoRanged range (see Section 3.1.1). With the Q-RPT DISPLAY active the main run screen is: Active RPT display. 9911 psi g Inactive RPT display with Ready/Not Ready *0.0 psi g indicator on far left. © 2009 DH Instruments, a Fluke Company Page 40...
Page 51: Hi/Lo
To go to a DISPLAY other than Hi/Lo, press [DISPLAY] and make a new DISPLAY choice (see Section 3.7.7). 3.7.7.6 Freeze PURPOSE To activate the Freeze DISPLAY. Note See Section 3.7.7, Principle. Page 41 © 2009 DH Instruments, a Fluke Company...
Page 52: Clean
To cause a pressure fluid head correction to be added to or subtracted from the pressure measured by the RPM4-E-DWT Q-RPT in order to predict the pressure at a height other than the E-DWT’s reference level. © 2009 DH Instruments, a Fluke Company Page 42...
Page 53 E-DWT’s TEST port. This difference in height, frequently called head, can cause a significant difference between the pressure measured by the E-DWT-H at its TEST port height and the pressure actually applied to the device under test at a different height.
Page 54: Sds]
Open the TEST shut off valve. Open the test system (disconnect) at the E-DWT-H TEST1 (top) port. Be sure that the E-DWT-H is filled with oil up to the TEST port weep hole. Use the variable volume to raise the oil level if necessary.
Page 55: Ent/Autotest] (Run Autotest)
AutoZ in gauge mode results in a zero offset that RPM4-E-DWT considers unusually large, <Confirm 0 gauge P!> is displayed. Check that zero gauge pressure is applied to the E-DWT-H TEST port, the reservoir shut off valve is closed and the TEST shut off valve is open.
Page 56: 3.7.11.1 Autotest Initialization
When <2no> is selected from the <Run current Quick AutoTest> screen, the AutoTest set-up/edit routine is accessed. The information needed to AutoRange RPM4-E-DWT based on the DUT characteristics is then collected in successive screens as follows. © 2009 DH Instruments, a Fluke Company Page 46...
Page 57: 3.7.11.2 Test Execution
(<XX> is Lo or Hi): Set the Q-RPT shut off valve to shut off or connect the RPM4-E-DWT’s Lo Q-RPT as indicated by the E-DWT-H valve indicator LED (see Section 3.4). Turn Page 47 © 2009 DH Instruments, a Fluke Company...
Page 58 Repeat the set pressure, take reading and accept data procedure until all points in the sequence have been accepted. AutoTest complete After the last pressure point in the sequence has been accepted the display is: 1data 2new 3repeat © 2009 DH Instruments, a Fluke Company Page 48...
Page 59: Setup]
Use AutoRange or AutoTest to create the range (sees Sections 3.7.5, 3.7.11) and then make any desired feature and setting adjustments. Once the AutoRange range is set up as desired, press [SETUP], <1range>, <1save>. The display is: Page 49 © 2009 DH Instruments, a Fluke Company...
Page 60: Deleting Autorange Ranges
<Delete all saved ranges?> query. If not, respond <2no>. 3.8.2 <2RES> (Resolution) PURPOSE To set the resolution with which measured pressures and other pressure indications and settings are displayed. © 2009 DH Instruments, a Fluke Company Page 50...
Page 61: 3Stab> (Stability)
Q-RPT and compares this rate to the active stability limit to make a Ready/Not Ready determination (see Section 3.1.2). The stability function allows the stability limit to be adjusted by the user to increase or decrease the stability required for a Ready condition to occur. Page 51 © 2009 DH Instruments, a Fluke Company...
Page 62: 4Ul> (Upper Limit)
To view or edit upper limit of the active range press [SETUP], <4UL>. The display is: Upper limit: Entry field for upper limit value in active pressure unit of 714 bar g measure and measurement mode. © 2009 DH Instruments, a Fluke Company Page 52...
Page 63: Over Pressure Function
AutoTest data files can also be downloaded via the RPM4-E-DWT’s COM1 RS232 interface. See “ATESTDATA” and “ATESTRNG” commands (Section 4.4.4). A data extraction spreadsheet is available for free download on www.dhinstruments.com. Page 53 © 2009 DH Instruments, a Fluke Company...
Page 64 (definition of out of tolerance is Set point – RPM4-E-DWT reading > DUT tolerance). Number of this test point over total number of points in the AutoTest. © 2009 DH Instruments, a Fluke Company Page 54...
Page 65: File
To access the AutoTest definition viewing and editing functions press [SETUP], <5ATest>, <2file>. Select <1view> to view an AutoTest definition file. Select <2edit> to edit an AutoTest definition file. Edit File AutoTest # When <2edit> is selected the display is: Page 55 © 2009 DH Instruments, a Fluke Company...
Page 66: Special]
Then [ESC] can only be used to abandon editing. [SPECIAL] PURPOSE [SPECIAL] accesses a menu of RPM4-E-DWT functions and features that are less commonly used or not normally used in regular operation. © 2009 DH Instruments, a Fluke Company Page 56...
Page 67: 1Autoz
The RPM4-E-DWT AutoZero function (AutoZ) is used to achieve gauge measurement mode with the RPM4-E-DWT’s intrinsically absolute Q-RPTs and to eliminate the influence of zero drift on measurement uncertainty. AutoZ can also tare out fluid heads between the E-DWT-H and the device under test.
Page 68 Select <3edit> to edit the value of P for the active Q-RPT and measurement mode. offset Edit P as desired and press [ENT] to activate the new value. Press [ESC] to abandon offset changes. © 2009 DH Instruments, a Fluke Company Page 58...
Page 69: 2Remote
<Term2> character. The characters can be any decimal number from 1 to 255. The defaults are <13> (carriage return) and <10> (line feed) and usually should not be changed. Page 59 © 2009 DH Instruments, a Fluke Company...
Page 70: 3Ieee-488
E-DWT-H OPERATION AND MAINTENANCE MANUAL 3.9.2.2 <3IEEE-488> An IEEE-488 interface is not included in the E-DWT-H A70M/A7M-AF model. 3.9.2.3 <4FORMAT> The RPM4-E-DWT has two different syntax formats available for the remote program commands. The classic remote command format is highly intuitive and conforms with previous DHI PPC and RPM4 products.
Page 71: 3Head
NOT pressed for a certain amount of time. The default is for the screen saver to activate after 10 idle minutes. The screen saver activation time can be adjusted by the user or screen saving can be completely eliminated. Page 61 © 2009 DH Instruments, a Fluke Company...
Page 72: 2Sound
[ENT] after each entry. Seconds go to zero when minutes are entered. This can be used to synchronize the time with a time standard. Select <2date> to edit the date. The date must be specified in YYYYMMDD format. © 2009 DH Instruments, a Fluke Company Page 62...
Page 73: 4Id
The user level function provides a means of restricting access to certain functions. Four different levels of security are available. Access to changing security levels can be left open, or be protected by a password. Page 63 © 2009 DH Instruments, a Fluke Company...
Page 74: Table 6. Security Levels
• • [SETUP], <5ATest> • [SPECIAL] • • [SPECIAL], <1AutoZ> [SPECIAL], <1AutoZ>, <1on/1off> • • • • • • [SPECIAL], <1AutoZ>, <3edit> • [SPECIAL], <2remote> • • [SPECIAL], <2remote>, make changes © 2009 DH Instruments, a Fluke Company Page 64...
Page 75 <xx>, that represents the number of times that a secondary password has been used. The second field, <xx>, increments each time a secondary password is used. The third field, <pppppp> is for user entry of the normal password. Page 65 © 2009 DH Instruments, a Fluke Company...
Page 76: 6Punit
1.000000 unit/Pa Entry field. Enter the number of user units per Pascal (Pa) in the entry field. Pressing [ENT] defines the user unit and returns to the <Set up unit #n> screen. © 2009 DH Instruments, a Fluke Company Page 66...
Page 77: 7Intern
To view the current reading of the on-board barometer press [SPECIAL], <7intern>, <1baro>. The display is in the active pressure unit of measure (see Section 3.7.3). The display resolution is fixed to 0.1 Pa, or its equivalent. Page 67 © 2009 DH Instruments, a Fluke Company...
Page 78: 2Readrt
Auto read rate ON/OFF is NOT Q-RPT or range specific. Turning auto read rate ON or OFF in one range turns it ON or OFF for all RPM4-E-DWT ranges. 3.9.7.3 <3RPT2X> PURPOSE This feature is not used in this RPM4-E-DWT model. © 2009 DH Instruments, a Fluke Company Page 68...
Page 79: 4Lo Vnt
These may include settings vital to RPM4-E-DWT operation and affecting the calibration of the reference pressure transducers (RPTs). Reset functions should only be used by qualified personnel with knowledge of reset consequences. Reset functions should never be used “experimentally”. Page 69 © 2009 DH Instruments, a Fluke Company...
Page 80: 1Sets
Sets the pressure units available under the UNIT function to default selections depending (see Section 3.7.3). Sets the user defined unit to 1.000/Pa (see Section 3.9.6). Sets the reference temperature for inWa unit to 20°C. © 2009 DH Instruments, a Fluke Company Page 70...
Page 81: 3Atest
All the resets of Reset - Cal 3.9.9.4 Remote Interfaces COM1, COM2 interfaces to default settings. 3.9.2 Remote Communications Remote command format to Classic 3.9.2.3 Level (Security) Reset security level to low 3.9.5.5 Page 71 © 2009 DH Instruments, a Fluke Company...
Page 83: Overview
This pin accepts serial data from the host computer. This pin is the common return for the TxD and RxD signals. IBM PC/XT DB-9F IBM PC/XT DB-9M TO RPM4-E-DWT CONNECTIONS DB9F CONNECTION DB-25M DB-9F DB-9M DB-9F Page 73 © 2009 DH Instruments, a Fluke Company...
Page 84: Com2
The syntax and format used for each program message in the classic mode is listed next to the keyword “Classic”’ in each program message summary in Section 4.4.4. The format for the enhanced mode is also indicated where needed. © 2009 DH Instruments, a Fluke Company Page 74...
Page 85: Error Queue
“RPT”, “ARANGE”, “AUTOZERO RUN”: Up to 3 seconds The syntax for using a QUERY program message is listed next to the keyword “Query:” in each program message summary in Section 4.4.4. Page 75 © 2009 DH Instruments, a Fluke Company...
Page 86: Commands
Read the RPM4-E-DWT software version. ZOFFSETn Read or set the AutoZero Z for the specified Q-RPT. offset ZOFFSET:XX Read or set the AutoZ Z for the specified Q-RPT (old command). offset © 2009 DH Instruments, a Fluke Company Page 76...
Page 87: Error Messages
ERR# 38 “Selected range is not available” ERR# 39 “Data verify error” ERR# 45 “Argument not allowed” ERR #46 “Argument cannot be negative” ERR #52 “Command obsolete” ERR# 53 “Not Available” Page 77 © 2009 DH Instruments, a Fluke Company...
Page 88: Program Message Description Overview
“ERR?” query can be used to retrieve a text description of the error. See Also Indicates related commands (“----“) and refers to manual sections giving detail on RPM4-E-DWT operation corresponding to the program message. © 2009 DH Instruments, a Fluke Company Page 78...
Page 89: Program Message Descriptions
This program message is usually used to ensure the RPM4-E-DWT is in an idle condition. Example Cmd sent: “ABORT” (enhanced) Reply: “ABORT” (no reply if IEEE-488) Example Sent: “ABORT” (classic) Reply: “ABORT” See Also “PR”, “PRR”, “RATE”, “SR”, “CONT” Page 79 © 2009 DH Instruments, a Fluke Company...
Page 90 Cannot Range to ‘0’ with gauge units. ERR# 29: Correct type of Q-RPT for the selected “Mode” is not available. ERR# 53: RPT specified is not available. See Also “RPT”, “RANGE”, “UNIT” 3.7.5, .3.1.1, 3.7.3 © 2009 DH Instruments, a Fluke Company Page 80...
Page 91 “200.00 ,kPa g,Lo, 0, 1, 2,0, 20081016, 03:30p” Errors ERR# 10: No data exists for this file index ERR# 52: End of test points for this test. See Also “ATESTRNG” 3.7.11, 3.8.5 Page 81 © 2009 DH Instruments, a Fluke Company...
Page 92 Query reply: “ 2.10, 1.000021, 20011201” Example Sent: “CALAMB=2.1, 1.000021, 20011201” (classic) Reply: “ 2.10, 1.000021, 20011201” Errors ERR# 6: One of the arguments is out of range. See Also 3.9.7.1, 5.2.2 © 2009 DH Instruments, a Fluke Company Page 82...
Page 93 (No reply if GPIB-488) Example Cmd sent: “COM2? 9600,N,8,1” (enhanced) Query reply: “9600,N,8,1” Example Sent: “COM2=9600,N,8,1” (classic) Reply: “9600,N,8,1” Errors ERR# 7: Missing or improper program message argument(s). See Also “COM1” 3.9.2.1 Page 83 © 2009 DH Instruments, a Fluke Company...
Page 94 Example Query sent: “ERR?” (enhanced): Query reply: “Numeric argument missing or out of range” Example Sent: “ERR” (classic) Reply: “Numeric argument missing or out of range” See Also 4.4.2 © 2009 DH Instruments, a Fluke Company Page 84...
Page 95 There is no query format. This format must agree with the format sent to the RPM4-E-DWT. This command is a replacement for the “MSGFMT” command. Example Cmd sent: “L3” (enhanced) Query reply: “L3” Example Sent: “L2” (classic) Reply: “L2” See Also “MSGFMT” 4.3, 3.9.2.3 Page 85 © 2009 DH Instruments, a Fluke Company...
Page 96 Example Cmd sent: “MSGFMT? 1” (enhanced) Query reply: “1” Example Sent: “MSGFMT=1” (classic) Reply: “MSGFMT=1” Errors ERR# 6: Missing or improper program message argument(s). See Also “L2 / L3” 4.3, 3.9.2.3 © 2009 DH Instruments, a Fluke Company Page 86...
Page 97 Example Query sent: “PR?” (enhanced) Query reply: “R 1936.72 kPa g” Example Query sent: “PR” (classic) Reply: “R 1936.72 kPa g” See Also “PRR”, “QPRR”, “SR”, “ABORT”, “READRATE” 3.6.1, 3.1.2, 3.9.7.2 Page 87 © 2009 DH Instruments, a Fluke Company...
Page 98 “R,2306.265 kPa g,0.011 kPa/s,97.000 kPa g” “R,2306.265 kPa g,0.011 kPa/s” (no barometer) Example Query sent: “QPRR” (classic) Reply: “R,2306.265 kPa g,0.011 kPa/s,97.000 kPa g” See Also “PR”, “PRR”, “SR” 3.6.1, 3.1.2, 3.9.7.1 © 2009 DH Instruments, a Fluke Company Page 88...
Page 99 Query reply: “1000” Example Sent: “READRATE=1000” (classic) Reply: “1000” Errors ERR# 6: The “period” argument is out of range. ERR#10: The suffix ‘n’ is invalid See Also “PR”, “PRR”, “SR” 3.9.7.2 Page 89 © 2009 DH Instruments, a Fluke Company...
Page 100 Query reply: “0.01” (No reply if GPIB-488) Example Cmd sent: “RES? .01” (enhanced) Query reply: “0.01” Example Sent: “RES=.01” (classic) Reply: “0.01” Errors ERR# 6 The argument is invalid. See Also 3.8.2 © 2009 DH Instruments, a Fluke Company Page 90...
Page 101 Query reply: “30” (No reply if GPIB-488) Example Cmd sent: “SCRSAV? 30” (enhanced) Query reply: “30” Example Sent: “SCRSAV=30” (classic) Reply: “30” Errors ERR# 6 The argument was invalid. See Also 3.9.5.1 Page 91 © 2009 DH Instruments, a Fluke Company...
Page 102 (enhanced) Query reply: “0.10 %” Example Sent: “SS%=.1” (classic) Reply: “0.10 %” Errors ERR# 6: The argument was invalid. ERR# 10: Invalid or missing command suffix. See Also “SS” 3.8.3, 3.1.2 © 2009 DH Instruments, a Fluke Company Page 92...
Page 103 1 Pa in the current pressure unit of measure. This program message allows the user to convert pressures Example Query sent: “UCOEF?” (enhanced) Query reply: “0.0010000000” Example Sent: “UCOEF” (classic) Reply: “0.0010000000” See Also 3.7.3, 3.9.6, 7.1.1 Page 93 © 2009 DH Instruments, a Fluke Company...
Page 104 Cmd sent: “UL? 1000” (enhanced) Query reply: “1000.00 kPa g” Example Sent: “UL=1000” (classic) Reply: “1000.00 kPa g” Errors ERR# 6: The “limit” argument is out of range. See Also 3.8.4 © 2009 DH Instruments, a Fluke Company Page 94...
Page 105 Query sent: “VER?” (enhanced) Query reply: “DH INSTRUMENTS RPM4-E-DWT4 us A70M/7M Ver1.00 ” Example Query sent: “VER?” (classic) Query reply: “DH INSTRUMENTS RPM4-E-DWT us E-DWT-H A70M/7M Ver1.00 ” See Also “ID”, “*IDN?” Page 95 © 2009 DH Instruments, a Fluke Company...
Page 106 97293.10 Pa, 0.00 Pa, 0.00 Pa” Example Sent: “ZOFFSET=97293.1, 0, 0” (classic) Reply: “ 97293.10, 0.00, 0.00” Errors ERR# 6: One of the arguments is out of range. See Also 3.9.1 © 2009 DH Instruments, a Fluke Company Page 96...
Page 107: Overview
The RPM4-E-DWT should be AutoZeroed prior to running each test. Before AutoZeroing, allow at least two minutes for full system stabilization. Be sure that the pressure applied is truly zero (i.e., the E-DWT-H TEST port is open to atmosphere). To cause the range to Autozero, press [AutoZ].
Page 108: Adjustment Of The On-Board Barometer
Q-RPT calibration procedure including applying the necessary pressures, collecting data automatically, calculating new PA and PM values, previewing the results of the new calibration and activating the results of the new calibration. © 2009 DH Instruments, a Fluke Company Page 98...
Page 109: Pa And Pm Coefficients
CalTool for RPTs software supports the calibration process of RPM4-E-DWT Q-RPTs. CalTool and its documentation are provided on the General Accessories Disk which is delivered with a new E-DWT-H. CalTool for RPTs can also be downloaded from www.dhinstruments.com. The use of CalTool software to assist in the calibration of RPM4-E-DWT is highly recommended.
Page 110: Set-Up And Preparation
(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-H and access to the front panel display, keypad and Lo Q-RPT shut off valve.
Page 111: Rpt Calibration Using Caltool For Q-Rpt S Software
Best results are obtained if the actual applied pressure is within 5 % of the recommended nominal point. Table 16. Calibration point sequence for E-DWT-H RPM4-E-DWT Q-RPTs CALIBRATION POINT...
Page 112: Q-Rpt Adjustment Without Caltool For Q-Rpt Software
Be sure to set the DF range (not an AutoRanged range). Use [HEAD] to set the HEAD to zero (see Section 3.7.8). Use [UNIT] to set the desired pressure unit of measure (see Section 3.7.3). © 2009 DH Instruments, a Fluke Company Page 102...
Page 113: E-Dwt Maintenance
E-DWT-H is generally overhauled as one common assembly. Removal of RPM4-E-DWT from the E-DWT-H is not recommended. Any or all of the following items may be included as part of an E-DWT-H overhaul: • Check that RPM4-E-DWT rear panel mounted cooling fan operates when RPM4-E- DWT is powered.
Page 114: Reloading Embedded Software Into Rpm4-E-Dwt Flash Memory
A standard E-DWT-H is delivered already filled and primed with Sebacate calibration fluid and should not need additional filling and priming before use. E-DWT-H for use with a fluid other than Sebacate is delivered empty and will need to be filled and primed before use.
Page 115: Rpm4-E-Dwt Subassembly Description And Location
Frequency counters (2) for reading Q-RPTs (see Section 5.4.4.4) • On-board barometer power and output (see Section 5.4.4.3) • Power to the system cooling fan • Remote [ENT] • Keypad and display • Beeper Page 105 © 2009 DH Instruments, a Fluke Company...
Page 116: On-Board Barometer
The cooling fan is mounted on the RPM4-E-DWT rear panel and connected to the main board. It is a 12V brushless DC fan. 5.4.5 Hydraulic Schematic of Q-RPT Module Figure 16. Hydraulic schematic RPM4-E-DWT Q-RPT Module © 2009 DH Instruments, a Fluke Company Page 106...
Page 117: Table 17. Troubleshooting Guide
Reduce pressure. Change UL and/or Pressure display is flashing and Current upper limit of active range has been change active range using [RANGE], beeper is sounding intermittently. exceeded. [AUTORANGE] or AutoTest. 3.8.4, 3.7.5, 3.7.11 Page 107 © 2009 DH Instruments, a Fluke Company...
Page 118 A head correction is applied and current Operation is normal. 3.7.8, 3.9.1 measurement indication is NOT indication is the value of the head. zero. <h> is displayed on top line of screen. © 2009 DH Instruments, a Fluke Company Page 108...
Page 119 Is NOT reading pressure applied E-DWT Lo Q-RPT Shut Off Valve is closed Familiarize yourself with the E-DWT-H to the Lo Q-RPT. shutting off the Lo Q-RPT from the E-DWT-H schematic and operation. Open the Lo TEST port. Q-RPT Shut Off Valve. 3.4 Is NOT reading pressure applied TEST shut off valve is closed.
Page 121: Unit Conversion
@ 0°C 2.953 E-04 inch of mercury 1.019716 E-05 kilogram force per centimeter square mTorr 7.50063 milliTorr (micron of mercury Torr 7.50063 E-3 Torr (millimeter of mercury) User User defined coefficient User Page 111 © 2009 DH Instruments, a Fluke Company...
Page 123: Overview
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.
Page 125 Pressure multiplier, used to adjust span of a Q-RPT or barometer to calibrate it. The maximum pressure limit of a Q-RPT. If the pressure measured by the Q-RPT Pmax! exceeds Pmax!, an overpressure condition occurs. Page 115 © 2009 DH Instruments, a Fluke Company...
Page 126 Levels of security that can be set to protect certain RPM4-E-DWT functions from being User Level accessed. On-board automated test sequence that AutoRanges RPM4-E-DWT based on QDUT characteristics of the Device Under Test (DUT). © 2009 DH Instruments, a Fluke Company Page 116...

DH Instruments E-DWT-H Operation And Maintenance Manual

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About this Manual

1 Introduction

5 Maintenance, Adjustments a N D C a L I B R a T I O

2 Installation

3 Operation

4 Remote Operation

7 Appendix

8 Warranty

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