Fluke RPM4 manual

© 2004-2007 DH Instruments, a Fluke Company RPM4™ Reference Pressure Monitor Operation and Maintenance Manual[...]

© 2004-2007 DH Instruments, a Fluke Company High pressure liquids and gases are potentially haza rdous. Energy stored in these liquids and gases can be released unexpectedly and with extreme forc e. High pressure systems should be assembled and operated only by personnel who have been instructed in proper safety practices. This instrument is not t[...]

TA BLE OF CONTENTS Page I © 2004-2007 DH Instruments, a Fluke Company T T A A B B L L E E O O F F C C O O N N T T E E N N T T S S TABLE OF CONTEN TS ............................................................... I TABL ES .................................................................................. V FIGURES .................................[...]

RPM4™ OPERA TION AND MA INTENA NCE MA NUA L © 2004-2007 DH Instruments, a Fluke Company Page II 3.2.2 GA UGE A ND NEGA TIVE GA UGE MODES WITH A N A XXX (A BSOLUTE) Q-RPT, DYNA MIC COMPENSATION FOR A TMOSPHERIC PRESSURE ............................................................................... 19 3.2.3 MULTIPE RANGES (Q-RPTS, A UTORA NGE A N[...]

TA BLE OF CONTENTS Page III © 2004-2007 DH Instruments, a Fluke Company 4. REMOTE O PERATION ....................................................... 81 4.1 OVERVIEW ....................................................................................................................... ..................... 81 4.2 INTERFA CING ......................[...]

RPM4™ OPERA TION AND MA INTENA NCE MA NUA L © 2004-2007 DH Instruments, a Fluke Company Page IV 6. TROUBLESH OOTING ....................................................... 131 7. APPENDI X ...................................................................... 135 7.1 REMOTE [ENT] ..................................................................[...]

TA BLES & FIGURES Page V © 2004-2007 DH Instruments, a Fluke Company T T A A B B L L E E S S Table 1. Reference Pressure Transduc er (Q-RPT) Module De signations and R anges ............................. 3 Table 2. RPM4 Packing List .................................................................................................... ...........[...]

RPM4™ OPERA TION AND MA INTENA NCE MA NUA L © 2004-2007 DH Instruments, a Fluke Company Page VI F F I I G G U U R R E E S S Figure 1. Front Panel ......................................................................................................... .......................... 8 Figure 2. Rear Panel .............................................[...]

A BOUT THIS MA NUA L Page VII © 2004-2007 DH Instruments, a Fluke Company A A B B O O U U T T T T H H I I S S M M A A N N U U A A L L This manual is intended to provide the user with the basic information necessary to operate an RPM4 reference pressure monitor. It also includes a great deal of additional information provided to allow you to optimi[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page VIII N N O O T T E E S S[...]

1. INTRODUCTION Page 1 © 2004-2007 DH Instruments, a Fluke Company 1 1 . . I I N N T T R R O O D D U U C C T T I I O O N N 1.1 PRODUCT OVERVIEW RPM4 is a stand-alone, microprocessor driven, re ference pressure monitor intended to precisely measure gas or liquid pressure in a wide variety of pressure calibration, measurement and testing application[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 2 1.2 SPECIFICA TIONS 1.2.1 GENERAL SPECIFICATIONS Power Requirements 85 to 264 VAC, 50/60 Hz, 25 VA max consumption and 12VDC, 1.2 A Operating Temperature Range 15 to 35 °C Storage Temperature Range - 20 to 70 °C Vibration Ventilation Meets MIL-T-28800D[...]

1. INTRODUCTION Page 3 © 2004-2007 DH Instruments, a Fluke Company Q-RPTs of A10M and lower are available with two different performance levels, STANDARD class and PREMIUM class. See the product label on the RPM4 rear panel, the Q-RPT module label on the rear panel and/or the product calibration reports to determin e the class of the Q-RPT(s) inst[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 4 Warm Up Time 30 minute temperature stabilization recommended from cold power up. Resolution To 1 ppm, user adjustable Compensated Temperature Range 5 to 35 °C Acceleration A ffect ± 0.008 % /g maximum, worst axis Allows operation at ± 20° from refere[...]

1. INTRODUCTION Page 5 © 2004-2007 DH Instruments, a Fluke Company 1.2.3 BATTERY AND CHARGER PACK Power Requirements 100 to 240 VAC, 50/60 Hz, 15 W max consumption Operating Temperature Range 0 to 50 °C Storage Temperature Range - 20 to 50 °C Vibration Meets MIL-T-28800D Weight 2 kg (4.4 lb) Dimensions 8 cm H x 22.5 cm W x 20 cm D (3.1 in. x 8.9[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page VI N N O O T T E E S S[...]

2. INSTA LLA TION Page 7 © 2004-2007 DH Instruments, a Fluke Company 2 2 . . I I N N S S T T A A L L L L A A T T I I O O N N 2.1 UNP ACKING AND INSPECTION 2.1.1 REMOVING FROM PACKAGING RPM4 is delivered in a corrugated container with pol yethylene inserts to hold it in place; or in the optional molded, medium density polyethylene shipping case wit[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 8 2.2 SITE REQUIREMENTS Install RPM4 on a flat, stable surface at a convenient height. The front feet can be extended so that the unit can be inclined for easier viewing. The RPM4 can also be mounted in a standard 19 in. rack mount using the optional rack [...]

2. INSTA LLA TION Page 9 © 2004-2007 DH Instruments, a Fluke Company 2.3.2.2 REAR PANEL 1. 12VDC Power Supply Connection 2. Remote [ENT] Connector 3. IEEE-488 Connector 4. COM2 Connector 5. COM1 Connector 6. Power Switch 7. Fuse 8. Electrical Power Connector (IEC-320-C13) 9. Fan 10. TEST(+) Pressure Port, Lo Q-RPT (if Lo Q-RPT present) 11. TEST(-)[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 10 2.3.4 REMOTE [ENT] CONNECTION (FOOTSWITCH OR OTHER SWITCH) Connect the optional remote ENTER footswitch, if available or a user supplied switch fitted to the optional cable (see Section 7.1). Connect the cable to the RPM4 rear panel connection labeled R[...]

2. INSTA LLA TION Page 11 © 2004-2007 DH Instruments, a Fluke Company case, connecting a tube from the TEST(-) port to the inside of the chamber may improve measurement results. If the Q-RPT i n use is an Axxx Q-RPT, this tube must be left open to the en viro nme n t s o th at t he p res sur e inside cannot deviate too far from ambient. When using[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 12 2.3.8 TURN OFF ABSOLUTE AND NEGATIVE GAUGE MODE (AXXX RPT) If your RPM4 has one or two Axxx (absolut e) Q-RPTs, it is able to operate in gauge, negative gauge and absolute measurement modes (see Section 3.3.3). If the RPM4 will be used in gauge mode onl[...]

2. INSTA LLA TION Page 13 © 2004-2007 DH Instruments, a Fluke Company 2.4.2 CHECK PRESSURE MEASUREMENT OPERATION 2.4.2.1 CHECKING ABSOLUTE MODE PRESSURE MEASUREMENT If the RPM4 has an Axxx (absolute) Q-RPT, check that it operates properly in absolute mode. Make sure that the TEST(+) port is vented to atmosphere. Use the [RANGE] function key to sel[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 14 2.5 SHORT TERM STORAGE The following is recommended for short term storage of RPM4: Vent the RPM4 test port Switch power OFF.[...]

3. OPERA TION Page 15 © 2004-2007 DH Instruments, a Fluke Company 3 3 . . O O P P E E R R A A T T I I O O N N 3.1 USER INTERF ACE RPM4 is designed to offer a balance between simple, st raight forward operation and the availability of a wide variety of advanced functions with a high level of operator discretion. The local operator interface is thro[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 16 PRESSURE1UNITM hzRR DDISPLAYFUNCIONnn/nn DISPLAY FIELD NAME PURPOSE CONTENTS SECTION 1. PRE SS URE 1 Measured pressure Displays pressure measured by the active Q-RPT Numerical pressure value and sign. Intermittently flashes <SDS CLOSED> when the Q[...]

3. OPERA TION Page 17 © 2004-2007 DH Instruments, a Fluke Company 3.1.2 FUNCTION / DATA KEYPAD LAYOUT AND PROTOCOL The RPM4 has a function/data keypad fo r local operator access to direct functions, function menus and for data entry. 1 . The Function/Data keys allow very commonly u s e d functions to be accessed directly by a single keystroke when[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 18 3.1.3 REMOTE [ENT] (ENTER) FOOTSWITCH The optional remote ENTER function is a switch that duplicates the func tion of the front panel [ENT] key. The remote ENTER function is se rviced by a connector on the RPM4 rear panel. An optional footswitch is avai[...]

3. OPERA TION Page 19 © 2004-2007 DH Instruments, a Fluke Company In differential measurement mode (see Section 3.3.3.1), the LED Ready/Not Ready indication applies to the differential pressures. In parallel measurement mode (see Section 3.2.4), the LED Ready/Not Ready indication applies to the average pressure read by the <HL> Q-RPT. When R[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 20 Table 3. Position Designators of Q-RPTs in an RPM4 System Q-RPT POSITION DISPLAY SYMBO L* Q-RPT with highest maximum pressure, installed in HIGH RPT position Hi Q-RPT with lower maximum pressure in dual Q-RPT RPM4, installed in LOW RPT position. Lo Two [...]

3. OPERA TION Page 21 © 2004-2007 DH Instruments, a Fluke Company Table 4. Settings and What They Are Specific To (Range, Measurement Mode, Q-RPT, System) SETTING PURPOSE SPECIFIC TO SECTION [Unit] Set pressure unit of measure Range 3.3.2 [Mode] Set pressure measurement mode (absolute, gauge, negative gauge) Range 3.3.3 [Display] Set bottom line d[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 22 AutoZ Make sure AutoZ is ON for all RPTs and measurement modes (see Section 3.5.1). Certain RPM4 settings may be changed when an RPM4 is operated with a PPC3. Settings that may be changed when an RPM4 is used as a PPC3 external device include: SDS Close[...]

3. OPERA TION Page 23 © 2004-2007 DH Instruments, a Fluke Company 3.2.6 USE OF THE 12VDC BATTERY/CHARGER PACK An optional 12VDC battery/charger pack is available to supply power to RPM4s 12VDC power connection (see 1.2.3). The battery/charger pack combines t he battery and the battery charger. To Charge the Battery The battery may be charged while[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 24 3.2.7 SDS SELF DEFENSE SYSTEM Q-RPT modules designated 7M or lower that are NOT liquid filled are equipped with the SDS self defense system. The SDS system includes har dware and embedded software to isolate Q-RPTs from overpressure. When SDS is CLOSED [...]

3. OPERA TION Page 25 © 2004-2007 DH Instruments, a Fluke Company 3.2.8 DIRECT FUNCTION KEYS SUMMARY Table 5 provides a brief summary of direct function key operation. It may be useful to keep a c o p y o f t h i s s u m m a r y n e a r t h e R P M 4 , e s p e c i ally when first becoming acquainted w ith its operation. Local operation of RPM4 is [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 26  OPERATION Pressing the [RANGE] function key activates the range viewing and selecting function. When the [RANGE] function key is first pressed, the active range is displayed. For example: 1 . Q-RPT designator. 2. Type of range. DF for the Q-RPT’s [...]

3. OPERA TION Page 27 © 2004-2007 DH Instruments, a Fluke Company Internally, RPM4 always operates in Pascal (P a), the SI unit of pressure. Values of pressure are represented in other units by the application of conversion factors to convert from Pa (see Section 7.2.1).  OPERATION To change the active pressure unit of measure for a range, pres[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 28 Gauge Measures pressure relative to atmosphere (zero is ambient pressure). Range is from zero gauge to full scale, full scale must be greater than zero. Negative Gauge Measures pressure relative to atmosphere (zero is ambient pressure). Range is positiv[...]

3. OPERA TION Page 29 © 2004-2007 DH Instruments, a Fluke Company If an Axxx Q-RPT is active, all thee measur ement modes are supported: absolute, gauge and negative gauge. Only gauge is availabl e if absolute and negative gauge modes have been turned OFF in calibration (see Section 5.2.5). If a Gxxx Q-RPT is active, only gauge meas urement mode i[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 30 The following operating conditions are specific to differential mode: Main run screen measured pressure display The display of measured pressure in the main run screen is the difference between the Hi and the Lo Q - R P T s (H i – L o) wi th a differe[...]

3. OPERA TION Page 31 © 2004-2007 DH Instruments, a Fluke Company The AutoRange function simplifies the task of selecting the Q-RPT best suited to cover a specific test range and setting measurement param eters appropriately for the range. These are set automatically based on operator entry of desired measurement m ode, pressure unit of measure an[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 32  OPERATION To use the AutoRange function, press [AutoRange] and respond to the RPM4’s prompts. Select AutoRange measurement mode: The screen is identical in appearance and function to the [MODE] screen (see Section 3.3.3). The choice of measurement[...]

3. OPERA TION Page 33 © 2004-2007 DH Instruments, a Fluke Company 3.3.5 [LEAK CK]  PURPOSE To run an automated leak check routine that determines the leak rate of the system connected to the RPM4 active Q-RPT TEST(+) port.  PRINCIPLE The LEAK CHECK function is provided as a m eans of checking and quantifying the leaks that may be present in [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 34 [ESC] can be used to abort the running leak test. [ENT] while the leak test is running restarts the leak check timer. When the leak check timer countdown has completed, RPM4 beeps three times and the leak check results screen is displayed: 1. Total pres[...]

3. OPERA TION Page 35 © 2004-2007 DH Instruments, a Fluke Company RPT If the RPM4 has two Q-PRTs, allows pressure measurement from the two RPTs to be displayed simultaneously (see Section 3.3.6.4). This function is particularly useful in dual Q-RPT RPM4s with independent TEST ports to monitor two separate pressures simultaneously. It is also used [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 36 When RPM4 is initialized as an external de vice to a PPC3 pressure controller, the RPM4 front panel keypad is locked out and the second line of the display becomes: <PPC3 EXT DEV: IDLE> (if RPM4 is initialized by PPC3 but not currently in use) <[...]

3. OPERA TION Page 37 © 2004-2007 DH Instruments, a Fluke Company Pressing [ENT] while in the Averag e DISPLAY aborts the current averaging period and causes a new one to begin. [ENT] can thus be use to trigger a new averaging period on demand. In the Average DISPLAY the Ready/Not Ready indication applies to the result of the previous averaging pe[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 38 The Rate DISPLAY is the default disp lay except in differential measurement mode in which the default DISPLAY is RPT. To go to a DISPLAY other than Ra te, press [DISPLAY] and make a new DISPLAY choice (see Section 3.3.6). 3.3.6.3 Dev (Deviation)  PUR[...]

3. OPERA TION Page 39 © 2004-2007 DH Instruments, a Fluke Company 3.3.6.4 RPT  PURPOSE To activate the RPT DISPLAY. See Section 3.3.6,  Principle. The RPT DISPLAY is only available in RPM4s with two Q-RPTs.  OPERATION For the sake of clarity, when describing the RPT DISPLAY, the Q-RPT displayed on the top line of the display when the RPT [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 40 If the inactive RPT is equipped with SDS Self Defense System (see Section 3.2.7), SDS will almost certainly be CLOSED when the RPT DISPLAY is activated. SDS can be OPENED on the inactive RPT using [SPECIAL], <4SDS> (see Section 3.5.4). In differen[...]

3. OPERA TION Page 41 © 2004-2007 DH Instruments, a Fluke Company 3.3.6.6 Freeze  PURPOSE To activate the Freeze DISPLAY. See Section 3.3.6,  Principle.  OPERATION To activate the Freeze DISPLAY press [DISPLAY] , <6Freeze> . Pressing <6Freeze> returns to the main run screen with the Freeze DISPLAY active. With the Freeze DISPL[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 42  OPERATION To activate the Clean DISPLAY press [DISPLAY] , <7Clean> . Pressing <7Clean> returns to the main run screen with the Clean DISPLAY active. With the Clean DISPLAY active the main run screen is: 1. Conventional main run screen fi[...]

3. OPERA TION Page 43 © 2004-2007 DH Instruments, a Fluke Company  OPERATION To access the HEAD function, press [HEAD] . The display is: 1. Test fluid currently specified for the head correction. 2. Edit field for head height. Edit head height: + 25 cm N2 Edit the head height to the desired value. Press [ENT] to return to the MAIN RUN screen wi[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 44  PRINCIPLE SDS is a self defense system to protect RP M4 Q-RPTs from overpressure. SDS CLOSES automatically to protect a Q-RPT that is not active. In a two Q-RPT RPM4, activating one Q-RPT automatically CLOSES SDS on the other Q-RPT. Powering down th[...]

3. OPERA TION Page 45 © 2004-2007 DH Instruments, a Fluke Company Use [SDS] to OPEN SDS if it is CLOSED for the active Q-RPT and/or to CLOSE SDS for the active and inactive Q-RPT. When [SDS] is pressed, there are three possible re sults depending whether the active Q-RPT is SDS equipped and ON (see Section 3.5.4.2), and whether its SDS is OPEN or [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 46 3.3.8.1 SDS IN DIFFERENTIAL AND PARALLEL MEASUREMENT MODES In differential and parallel measurement modes, opening SDS opens SDS for BOTH the Hi and Lo Q-RPTs. Before opening SDS, be certain that the pr es sur e app li ed to both the Hi and Lo RPM4 TEST[...]

3. OPERA TION Page 47 © 2004-2007 DH Instruments, a Fluke Company 3.3.9.1 [AUTOZ] IN GAUGE AND NEGATIVE GAUGE MODE  PURPOSE To “rezero” the active Q-RPT in gauge measurement mode. See Section 3.5.1,  Principle for a full explanation of the AutoZ function.  OPERATION For the AutoZ function key to run AutoZ, AutoZ must be turned ON for [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 48 3.3.9.2 [AUTOZ] IN ABSOLUTE MODE  PURPOSE To “rezero” the active Q-RPT in absolute measurement mode See Section 3.5.1,  Principle for a full explanation of the AutoZ function.  OPERATION For the AutoZ function key to run AutoZ, AutoZ must b[...]

3. OPERA TION Page 49 © 2004-2007 DH Instruments, a Fluke Company When the run AutoZ selection is made, if a HEAD correction is currently active (see Section 3.3.7) the head correction is momentarily disabled while running AutoZ to avoid “zeroing out” the head value. The value of P offset is always displayed and entered in Pascal (Pa). Run Aut[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 50 To access run AutoZ by COM2 press [AutoZ] , <2COM2> . The display is: 1. Real time pressure reading (without head correction), pressure unit of measure and measurement mode of the active Q-RPT. 2. Active Q-RPT position designator. 3. Real time rea[...]

3. OPERA TION Page 51 © 2004-2007 DH Instruments, a Fluke Company 3.3.9.3 AUTOZ IN DIFFERENTIAL MODE  PURPOSE To compensate for the offset between the Hi Q-RPT and the Lo Q-RPT at the operating “line pressure” in differential measurement mode. See Section 3.5.1,  Principle for a full explanation of the AutoZ function.  OPERATION For t[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 52  PRINCIPLE This feature not available at the time of release of this manual. Check www. dh i n s t r um en ts .c om for new RPM4 embedded software releases and manual updates.  OPERATION Feature not available at the time of release of this manual.[...]

3. OPERA TION Page 53 © 2004-2007 DH Instruments, a Fluke Company Once the AutoRange range is set up as desired, press [SETUP] , <1range> , <1save> . The display is: 1. Indication that this is a range to be saved. 2. Designator and position of the Q-RPT used by the range to be saved. 3. Pressure unit of measure of the range to be saved[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 54 digit to the right. For example, reso lution of 0.001 % on a range of 150 kPa is 150 X 0.001 % = 0.0015 which is rounded down to 0.001 kPa. Default resolution is 10 ppm of active rang e span. Resolution is set automatically by AutoRange (see Section 3.3[...]

3. OPERA TION Page 55 © 2004-2007 DH Instruments, a Fluke Company  OPERATION To access the stability setting adjustment, press [SETUP] , <3stab> . The display is: Stability: Hi 0.020 Pa Edit the desired stability limit setting if desired. [ENT] activates the stability limit for the active range and returns to the main run screen Press [ES[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 56  OPERATION To view or edit upper and lower limits press [SETUP] , <4UL> . If the current measurement mode is absolut e or gauge, there is an upper limit only. The display is: 1. Entry field for upper limit value in active pressure unit of measu[...]

3. OPERA TION Page 57 © 2004-2007 DH Instruments, a Fluke Company 3.4.4.1 OVER PRESSURE FUNCTION In addition to the UL function, RPM4 has an over pressure function. The over pressure function executes when a Q-RPT measures a pressure that is 104 % of its default span. The G15K and BG15K Q-RPTs also have a negative ov er p res su re function. The n[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 58 3.5.1 <1A UTO Z>  PURPOSE To offset the RPM4 Q-RPT(s) readings relative to a reference value in order to compensate for possible changes in Q-RPT zero between full recalibrations. In differential measurement mode, to compensate for the differen[...]

3. OPERA TION Page 59 © 2004-2007 DH Instruments, a Fluke Company The AutoZ function can be turned ON and OFF. Table 7 summarizes the effect of AutoZ ON and OFF for the three Q-RPT types in different measurement modes. AutoZ in absolute measurement mode w ith an Axxx Q-RPT Q-RPTs with the designation Axxx are intrin sically absolute. They have an [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 60 AutoZ in gauge measurement mode w ith a Gxxx or BGxxx Q-RPT Q-RPTs with the designation Gxxx or BGxxx are intrinsically gauge. They have an atmospheric ( TEST(-) ) reference port and measure gauge pressure (difference from atmosphere). In gauge measurem[...]

3. OPERA TION Page 61 © 2004-2007 DH Instruments, a Fluke Company “line pressure”. The following simple recomm endations will help assure that you use this feature to best advantage. • In gauge and differential measurement mode: Always leave AutoZ ON when operating. • In absolute measurement mode: Always leave AutoZ ON when operating if th[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 62 Select <3edit> to ed it the value of P offset for the active Q-RPT and measurement mode (see Section 3.5.1.1). The value of P offset is always displayed and entered in Pascal (Pa). 3.5.1.1 EDIT AUTOZ The edit AutoZ function should be used with gre[...]

3. OPERA TION Page 63 © 2004-2007 DH Instruments, a Fluke Company  OPERATION To access the communications settings, press [SPECIAL] , <2Remote> . • Select <1COM1> to view and edit COM1 settings (see Section 3.5.2.1.). • Select <2COM2> to view and edit COM2 settings (see Section 3.5.2.1.). • Select <3IEEE> to view a[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 64 3.5.2.4 <5RS232 SELF-TEST> The RS232 self-test is provided to che ck the RPM4 COM ports and the interface cable independently of an external device or computer. If you are hav ing difficulty communicati ng w ith RPM4 from a host computer using RS2[...]

3. OPERA TION Page 65 © 2004-2007 DH Instruments, a Fluke Company 3.5.4 <4SDS>  PURPOSE To open and close SDS temporarily for the Hi or Lo Q-RPT or to turn the SDS function ON and OFF full time for the Hi or Lo Q-RPT. See Section 3.2.7 for complete information on RPM4’s SDS (Self Defense System) feature.  PRINCIPLE SDS is a self defe[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 66 3.5.4.2 <2FULL TIME ON/OFF>  OPERATION See Section 3.2.7 for complete information on RPM4’s SDS (Self Defense System) feature. Turning SDS “full time OFF” for a Q-RPT module eliminates normal SDS operation so that the Q-RPT module TEST(+)[...]

3. OPERA TION Page 67 © 2004-2007 DH Instruments, a Fluke Company 3.5.5.1 <1S CR S VR >  PURPOSE To adjust the idle time after whic h RPM4’s SCREEN SAVER activates.  PRINCIPLE RPM4 has a SCREEN SAVER function which causes the dis play to dim after a front panel key is NOT pressed for a certai n amount of time. The default is for the [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 68 Select <1time> to edit the time. Edit hours, then minutes, then am/pm by pressing [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 [...]

3. OPERA TION Page 69 © 2004-2007 DH Instruments, a Fluke Company Access to changing security levels can be left open, or be protected by a password. Security Lev els The security levels are structured to s upport typical operating environments as follows: None This level is intended for use only by the system manager and/or calibration facility. [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 70 Table 8. Security Levels FUNCTION LOW MEDIUM HIGH [RANGE] • [ENT] (AutoTest) • [UNIT] • [MODE] • [AutoRange] • • [LEAK CK] • [DISPLAY] • • [HEAD] • [SDS] • [AutoZ] (in absolute mode) • • [SETUP] • [SETUP], <1range> • [...]

3. OPERA TION Page 71 © 2004-2007 DH Instruments, a Fluke Company  OPERATION RPM4 is delivered with no active password and access to the User Level menu is open. T h e u s e r l e v e l i s s e t to <1Low > . User levels can be changed freely until a password has been created. To access the LEVEL function press [SPECIAL] , <5prefs> [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 72  PRINCIPLE The [UNIT] function key makes available a choice of six default pressure units (US or SI units depending on whether the RPM4 has been factory set as US or SI) (see Section 3.3.2). RPM4 also supports many commonly used units ot her than tho[...]

3. OPERA TION Page 73 © 2004-2007 DH Instruments, a Fluke Company 3.5.7 <7INTERNAL>  PURPOSE To view, set, adjust, and maintain various aspects of RPM4’s internal operation.  OPERATION To access the internal selections press [SPECIAL] , <7internal> . The display is: 1baro 2ReadRt 3RPT2x 4lo vnt 5log The INTERNAL menu choices in[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 74  OPERATION RPM4’s that have only G100K or G2 00K Q-RPTs (no Axxx, G15K or BG15K) are NOT equipped with an on-board barometer. To view the current reading of the on-board barometer press [SPECIAL] , <7internal> , <1baro> . The display is[...]

3. OPERA TION Page 75 © 2004-2007 DH Instruments, a Fluke Company Selecting <1on> activates the automated reading rate and returns to the MAIN RUN screen. Selecting <2off> turns OFF the automated reading rate and returns to the MAIN RUN screen. The default RPM4 condition is auto read rate ON. Auto read rate ON/OFF is NOT Q-RPT or range[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 76 Operation returns to normal when the disagreement between the two Q-RPTs returns to normal. When using parallel measurement mode, the Hi and Lo Q-RPTs should be connected IN PARALLEL to the pressure to be measured (both Q-RPTs connected to the same pres[...]

3. OPERA TION Page 77 © 2004-2007 DH Instruments, a Fluke Company in which it determines there could be a risk of overpressure to the Q-RPT by opening the TEST(-) vent valve, the message <Cannot open lo vent, DP overpressure risk> is displayed. If this message is displayed, return to normal operation, vent the RPM4 Q-RPT module and try again[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 78 3.5.9 <9RESET>  PURPOSE To reset various RPM4 settings to default or factory values.  PRINCIPLE RPM4 stores its user definable settings in non- volatile memory. The reset menu allows the user to selectively or completely reset thes e setting[...]

3. OPERA TION Page 79 © 2004-2007 DH Instruments, a Fluke Company Table 11. Reset – Sets RESET RESULT SEE SECTION [UNIT] Pressure unit of measure to first of the six available 3.3 .2 [MODE] Measurement mode to the native mode of the Q-RPT 3. 3. 3 [RANGE] Hi Q- R P T default range 3.3.1 [HEAD] 0 cm height and Nitrogen medium 3.3 Stability Limit 0[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 80 Table 12. Reset – Cal RESET RESULT SEE SECTION All Q-RPT Calibration Coefficients PA to zero, PM to 1 5.2.1.1, 5.2.7 Axxx Q-RPT absolute and negative gauge mode ON 5.2.5 On-board Barometer Calibration Coefficients PA to zero, PM to 1 5.3 Calibration D[...]

4. REMOTE OPERA TION Page 81 © 2004-2007 DH Instruments, a Fluke Company 4 4 . . R R E E M M O O T T E E O O P P E E R R A A T T I I O O N N 4.1 OVERVIEW Most of the RPM4 front panel functions can also be executed by commands from a remote computer. The host computer can communicate to the RPM4 us ing the RPM4’s COM1 RS232 port or it’s IEEE-48[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 82 4.2.1.2 IEEE-488 The RPM4 IEEE-488 interface is located on the back of the unit. The physical and electrical interface conforms to IEEE Std 488.1-1987 Subset E2 and IEEE Std. 488.2-1992. You should not attemp t to communicate with the IEEE-488 interface[...]

4. REMOTE OPERA TION Page 83 © 2004-2007 DH Instruments, a Fluke Company 4.3.1 CLASSIC PROGRAM MESSAGE FORMAT Each program message sent is also a query. You can only send one program message to the RPM4 at time. After sending any program me ssage, you must wait for the RPM4 to reply before sending another program message. This r eply will contain [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 84 Examples: • IEEE-488 enhanced mode command series using query operator: “*CLS?” (Clear the error queue. Wait for reply) “UNIT? KPA” (Generates a reply. User must wait for reply before continuing) “MMODE? A” (Generates a reply. User must wa[...]

4. REMOTE OPERA TION Page 85 © 2004-2007 DH Instruments, a Fluke Company 4.4 COMMANDS 4.4.1 PROGRAMMING MESSAGES Some commands accept an optional suffix. This su ffix can be used to specify the explicit Q-RPT to address. In most cases, each Q- RPT in the RPM4 operates as an independent measurement device. If the suffix is not specified, then the ?[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 86 COMMAND ‘ n ’ indicates an optional suffix DESCRIPTION UL n Read or set the upper limit for the current range. UNIT n Read or set the pressure unit of measure for the current range. VER Read the RPM4 software version. ZOFFSET n Read or set the AutoZ[...]

4. REMOTE OPERA TION Page 87 © 2004-2007 DH Instruments, a Fluke Company 4.4.3 PROGRAM MESSAGE DESCRIPTION OVERVIEW Each program message description is s eparated into the following sections: Purpose A brief description of the programs message’s function. Command This is the Enhanced program message syntax to send data to the RPM4 or to execute [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 88 4.4.4 PROGRAM MESSAGE DESCRIPTIONS # Purpose To allow the host PC to communicate with a device connected to the RPM4 COM2 port. Classic “#xx” Arguments xx: The string to send out of the RPM4 COM2 port. It must be less than 40 characters long. Remark[...]

4. REMOTE OPERA TION Page 89 © 2004-2007 DH Instruments, a Fluke Company ARAN G E n Purpose Read or set a new AutoRange range to use. Command Query “ARANGE n Range, unit, mode (,RptLabel) ” (set to user defined range) “ARANGE Q-RPT Label ” (set to Q-RPT default range) “ARANGE n ?” Classic Query “ARANGE n = Range, units, mode (,RptLab[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 90 ATM Purpose Reads the next measured pressure fr om RPM4’s on-board barometer (if present). Query Classic “ATM?” “ATM” Remarks The atmospheric pressure as measured by the RPM4 on-board barometer is returned in the current pressure units of the [...]

4. REMOTE OPERA TION Page 91 © 2004-2007 DH Instruments, a Fluke Company CALA MB Purpose Read or set the on-board barometer calibration. Command Query “CALAMB adder, mult, CalDate ” “CALAMB?” Classic “CALAMB =adder, mult, CalDate ” “CALAMB” Defaults “CALAMB = 0.0, 1.0, 19800101” Arguments Adder: The Barometer calibration adder [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 92 CONT n Purpose Have the RPM4 reply continuously as each new measurement becomes available. Query “CONT n ?” Classic “CONT n ” Optional Suffix “n” The active Q-RPT is assum ed if no suffix is given. ‘1’ Specify the Hi Q-RPT if t he Hi and[...]

4. REMOTE OPERA TION Page 93 © 2004-2007 DH Instruments, a Fluke Company GPIB Purpose Read or set the GPIB interface address. Command Query “GPIB addr ” “GPIB?” Classic “GPIB= addr ” “GPIB” Defaults “GPIB 10” Arguments Addr: The address of the IEEE-488 (GPIB) interface (1 to 30) Remarks The GPIB address is changed following the[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 94 L2 / L3 Purpose Read or set the type of program command format to use (classic or enhanced). Command “L2” enables “classic” mode “L3” enables “enhanced” mode Defaults “L2” (Classic mode) Remarks The user can select the type of remote[...]

4. REMOTE OPERA TION Page 95 © 2004-2007 DH Instruments, a Fluke Company MEM Purpose Read the status from the power-up memory test. Query “MEM?” Classic “MEM” Rem arks The RPM4 s ystem memo ry sto res t he use r set ting s (un its, reso luti on) and retains them w hen the unit is OFF. On power-up, this memory is checked. If this memory is [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 96 MSGFMT Purpose Read or set the type of program co mmand format to use (enhanced or classic). Command Query “MSGFMT mode “MSGFMT?” Classic “MSGFMT= mode “MSGFMT” Arguments mode: ‘1’ to use the enhanced command format. ‘0’ to use the c[...]

4. REMOTE OPERA TION Page 97 © 2004-2007 DH Instruments, a Fluke Company PCAL n Purpose Read or set the calibration information for the Hi or Lo Q-RPT. Command Query “PCAL n adder, mult, CalDate ” “PCAL n ?” Classic “PCAL n= adder, mult, CalDate ” “PCAL n ” Defaults “PCAL n = 0.0, 1.0, 19800101” “n” The active Q-RPT is assu[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 98 PRR Purpose Read the next available Ready condition, pressure measurement, rate and on-board barometer reading. Query “PRR?” Classic “PRR” Optional Suffix “n” The active Q-RPT is assum ed if no suffix is given. ‘1’ Specify the Hi Q-RPT i[...]

4. REMOTE OPERA TION Page 99 © 2004-2007 DH Instruments, a Fluke Company RANGE Purpose Change the active range to the default range of the Hi, Lo or HL Q-RPT. Replies the active range full scale, pressure unit and measurement mode. Command Query “RANGE Rng ” “RANGE?” Classic “RANGE= Rng ” “RANGE ” Default “RANGE IH” Rng: “IH?[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 100 READRA TE n Purpose Read or set the specified or active Q-RPT read rate or auto read rate mode. Command Query “READRATE n period ” “READRATE n ?” Classic “READRATE n = period ” “READRATE n ” Optional Suffix “n” The active Q-RPT is a[...]

4. REMOTE OPERA TION Page 101 © 2004-2007 DH Instruments, a Fluke Company REMOTE Purpose Lock out the front panel keypads during remote operation. Command “REMOTE” Classic “REMOTE” Remarks The RPM4 goes into remote mode w henever communications take place. The user can return to local operation by pressing the [ ESC] key . The REMOTE progr[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 102 RPT n Purpose Read the available Q- RPT identification data. Query “RPT n ” Classic “RPT n ” Optional Suffix “n” The active Q-RPT is assum ed if no suffix is given. ‘1’ Specify the Hi Q-RPT if t he Hi and Lo Q-RPTs are NOT OFF Specify t[...]

4. REMOTE OPERA TION Page 103 © 2004-2007 DH Instruments, a Fluke Company SDSACT Purpose Read or set the status for both the Hi and Lo Q-RPT’s SDS systems. This is equivalent to use of the [SDS] key from the RPM4 front panel. Command Query “SDS state ” “SDS” Classic “SDS= state ” “SDS” Default “SDS=1” Arguments ”state” : [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 104 SN Purpose To read the serial number of the RPM4. Query “SN?” Classic “SN” Remarks The RPM4 is serialized. The serial number can be read using this program message. Example (enhanced) Query sent: Query reply: “SN?” “321” Example (classi[...]

4. REMOTE OPERA TION Page 105 © 2004-2007 DH Instruments, a Fluke Company SS n Purpose Read or set the current pressure stability limit. Command Query “SS limit ” “SS?” Classic “SS= limit ” “SS” Optional Suffix “n” The active Q-RPT is assum ed if no suffix is given. ‘1’ Specify the Hi Q-RPT if t he Hi and Lo Q-RPTs are NOT [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 106 UDU Purpose Read or set the user defined pressure unit. Command Query “UDU label, ucoef ” “UDU?” Classic “UDU= label, ucoef ” “UDU” label: User unit label (4 al phanumeric char maximum). It cannot be an already supported unit label. Uco[...]

4. REMOTE OPERA TION Page 107 © 2004-2007 DH Instruments, a Fluke Company UNIT n Purpose Read or set the pressure unit of measure unit and measurement mode. Command Query “UNIT n unit (, ref ”)” “UNIT n unit n (, ref ”)” “UNIT n unit g (, ref ”)” “UNIT n unit a (, ref ”)” “UNIT n unitd (, ref”)” “UNIT n ?” Classic[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 108 ZOFFSET n Purpose Read or set the AutoZ pressure offset (P offset ) for the specified or active Q-RPT in the current measurement mode. Command Query “ZOFFSET n GaOffset , AbsOffset , DifOffset ” “ZOFFSET n ?” Classic “ZOFFSET n = GaOffset , A[...]

4. REMOTE OPERA TION Page 109 © 2004-2007 DH Instruments, a Fluke Company Status Byte Register (“ ∗ STB?” or ” ∗ SRE n”) OPER (128) RQS/MSS (64) Standard Event Status Register (“ ∗ ESR?” or “ ∗ ESE n” ) ESB (32) ←←← PON (128) URQ (64) CMD (32) EXE (16) DDE (8) QYE (4) RQC (2) OPC (1) MA V (16) ←←← OUTPUT QUEUE N[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 110 4.5.3 STANDARD EVENT REGISTER The RPM4 contains an 8 bit Standard event regist er that reflects specific RPM4 events. Enabled events in this register will set or cl ear the ESB bit of the Status Byte Register. Table 19. 8 Bit Standard Event Register PO[...]

4. REMOTE OPERA TION Page 111 © 2004-2007 DH Instruments, a Fluke Company This register can be read using the “*RSR?” query, Each of these status bits can set the RSB bit of the Status Byte Register, causing a SR Q to occur IF the RSB bit is enabled to do so. The Standard Event Status Enable Register ( “*RSE” program message ) determines w[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 112 4.6.1 PROGRAM MESSAGE DESCRIPTIONS ∗ CLS Purpose Clear all of the status & event structures. Command “ ∗ CLS” Remarks This program message clears the following events and status registers: Standard Byte Register (STB) Standard Event Status [...]

4. REMOTE OPERA TION Page 113 © 2004-2007 DH Instruments, a Fluke Company ∗ SRE Purpose Read or set the Service Request Enable Register. Command Query “ ∗ SRE n ” “ ∗ SRE?” Default “ ∗ SRE 0” Arguments n: ’0 to 255’ This is the decimal representat ion of the bit(s) to enable. To allow the MAV and ESB bits to assert the SRQ [...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 114 N N O O T T E E S S[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 115 © 2004-2007 DH Instruments, a Fluke Company 5 5 . . M M A A I I N N T T E E N N A A N N C C E E , , A A D D J J U U S S T T M M E E N N T T S S A A N N D D C C A A L L I I B B R R A A T T I I O O N N 5.1 OVERVIEW RPM4 was designed for maintenance free operation. No maintenance is required ot[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 116 The calibration process is performed independently on each Q-RPT to arrive at its optimal fit. CalTool for RPTs software provided with the RPM4 supports the calibration process of RPM4 Q-RPTs. CalTool and its documentation are provided on a General Acc[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 117 © 2004-2007 DH Instruments, a Fluke Company readings with PA = 0 and PM = 1. Then applying the as received PA and PM and P offset values to the readings calculates as received readings (the readings that the transducer would have made with the old PA, PM and P offset ). It is recommended tha[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 118 • Measurement uncertainty of ± 0.008 % of reading for Standard Class Q-RP Ts or ± 0.005 % of reading for Premium Class Q-RPTs . A standard with higher measurement uncertainty may be used but RPM4 measurement uncertainty may be degraded proportional[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 119 © 2004-2007 DH Instruments, a Fluke Company 5.2.4 RECOMMENDED CALIBRATION POINT SEQUENCE Calibration adjustments to RPM4 Q-RPTs are made by altering calibration coefficients, PA and PM (see Section 5.2.1.1). To adjust thes e coefficients to optimum values giving the best results over the Q-R[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 120 Table 23. Calibration Point Sequence, Standard Class, BGxxx Q-RP T s CALIBRA TION SEGMENT POINT NO. POINT [% OF SPA N] 1 1 0 % 2 25 % 3 50 % 4 75 % Ascending 5 100 % 6 75 % 7 50 % 8 25 % Descending 9 0 % 1. The BG15K span is – 15 to + 15 kPa, 30 kPa [...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 121 © 2004-2007 DH Instruments, a Fluke Company Table 25. Calibration Point Sequence, Premium Class, Axxx and Gxxx Q-RPT s CALIBRA TION SEGMENT POINT NO. POINT [% OF SPA N] 1 Lowest Pressure 1 2 5 % 3 10 % 4 15 % 5 20 % 6 30 % 7 40 % 8 50 % 9 60 % 10 80 % Ascending 11 100 % 12 80 % 13 50 % 14 20[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 122 5.2.5 TURNING OFF ABSOLUTE AND NEGATIVE GAUGE MEASUREMENT MODES FOR AXXX (ABSOLUTE) Q-RPTS  PURPOSE To prevent operation in absolute and negative gauge measurement modes on an Axxx (absolute) Q-RPT that has been calibrated for gauge mode only.  P[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 123 © 2004-2007 DH Instruments, a Fluke Company • Absolute and negative gauge measurement modes ON or OFF (Axxx Q-RPTs only ) – See Section 3.3.3,  PRINCIPLE for complete information on measurement modes. This is set to OFF if an Axxx Q-RPT was calibrated in gauge mode with a gauge pressu[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 124 been made in any of the calibration screens. Pressing [ESC] in any edit screen exits the edit screen without activating any changes. The value of PA is always in Pascal (P a). The value of PM is dimensionless. 5.2.8 Q-RPT CALIBRATION/ADJUSTMENT WITHOUT[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 125 © 2004-2007 DH Instruments, a Fluke Company Run the recommended calibration point sequenc e for the Q-RPT (see Section 5.2.4). Record the pressure applied by the standar d and the RPM4 reading at each calibration po int . Dwell at least 60 seconds at each point after setting the reference pr[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 126 5.4 RELOADING EMBEDDED SOFTW ARE INTO FLASH MEMOR Y RPM4 uses FLASH memory. This allows the embedded software that controls RPM4 operations and fu nct io ns to be loaded into RPM4 over its COM1 port from a computer with a simple FLASH loading utility p[...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 127 © 2004-2007 DH Instruments, a Fluke Company 5.5 SUBASSEMBL Y DESCRIPTION AND LOCA TION 1. Micro Card 2. Power Supply Module (beneath Driver Board) 3. Driver Board 4. On-Board Barometer (if present) 5. Lo Q-RPT module (if present) (< A7M style shown) 6. Hi Q-RPT module (< A7M style show[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 128 5.5.3 DRIVER BOARD The driver board is controlled by the mini micro board (see Section 5.5.1). It supports: • 12 V drivers for internal solenoid valve actuation • Frequency counters (2) for reading Q-RPTs (see Section 5.5.5) • On-board barometer [...]

5. MA INTENANCE, A DJUSTMENTS AND CA LIBRATIONS Page 129 © 2004-2007 DH Instruments, a Fluke Company 5.6 Q-RPT MODULE PNEUMA TIC SCHEMA TICS Axxx Q-RPT > A 10M (No SDS) A xxx Q-RPT <A10M VA LVE STA TE CONDITION A B SDS Open O C SDS Closed C O Power off C O Gxxx or BGxxx Q-RPT VA LVE STA TE CONDITION A B C SDS Open O C C SDS Closed C O O Powe[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 130 The pneumatic schematic for RPM4’s with two Q-RP T modules is the same as for the single Q-RPT modules in Figure 8 with the following exceptions: • If both modules use the barometer, the barometer is connected to teed to both module barometer conne[...]

6. TROUBLESHOOTING Page 131 © 2004-2007 DH Instruments, a Fluke Company 6 6 . . T T R R O O U U B B L L E E S S H H O O O O T T I I N N G G RPM4 is a sophisticated pressure setting and measur ing instrument with advanced on-board features and functions. Before assuming that unexpected behavio r is caused by a system defect or breakdown, the operat[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 132 SYMPTOM PROBABLE CA USE SOLUTION The Q-RPT range does not cover the desired AutoRange. Ch e ck t h a t Q -RPT default range is high enough to cover the AutoRange. Table 1 The specified operating mode is absolute or negative gauge and absolute and negat[...]

6. TROUBLESHOOTING Page 133 © 2004-2007 DH Instruments, a Fluke Company SYMPTOM PROBABLE CA USE SOLUTION Disagreement between two Q-RPTs in system appears excessive. Difference is actually within tolerance and acceptable disagreement. Compare differences observed to tolerances on Q-RPT measurements. 1.2.2.1 Apparent inaccurate pressure control/mea[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 134 N N O O T T E E S S[...]

7. A PPENDIX Page 135 © 2004-2007 DH Instruments, a Fluke Company 7 7 . . A A P P P P E E N N D D I I X X 7.1 REMOTE [ENT] The RPM4 remote ENTER function operates by det ecting the open or closed st atus of the REMOTE ENTER switch. The normal status of the ENTER switch is OPEN. When RPM4 detects a CLOSED condition held for 300 ms, it is interprete[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 136 7.2 UNIT CONVERSION 7.2.1 PRESSURE RPM4 performs all internal calculations in SI uni ts. Numerical values input or output in other units are converted to SI immediately after entry and back to other units just before output as needed. Table 28 provides[...]

8. WA RRANTY Page 137 © 2004-2007 DH Instruments, a Fluke Company 8 8 . . W W A A R R R R A A N N T T Y Y 8.1 OVERVIEW Except to the extent limited or otherwise provided herein, DH Instruments 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[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 138 N N O O T T E E S S[...]

9. GLOSSA RY Page 139 © 2004-2007 DH Instruments, a Fluke Company 9 9 . . G G L L O O S S S S A A R R Y Y Axxx A type of Q-RPT with a built-in vacuum reference that is intrinsically absolute (e.g. A10M). Axxx Q-RPTs support absolute, gauge and negative gauge measurement modes. Absolute Mode Measurement mode in which the Q-RPT indicates absolute pr[...]

RPM4™ OPERA TION AND MA INTENANCE MA NUAL © 2004-2007 DH Instruments, a Fluke Company Page 140 PM Pressure multiplier, used to adjust span of a Q-RPT or barometer to calibrate it. Parallel Measurement Mode Operating mode of RPM4s with two Q-RPTs in which both Q-RPTs are used to measure together in parallel and the indicated pressure is the avera[...]