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DH Instruments ADCS-601 Operation And Maintenance Manual

Air data calibration standard
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ADCS-601™
Air Data Calibration Standard
Operation and Maintenance Manual
© 2005 DH Instruments, Inc.

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  • Page 1 ADCS-601™ Air Data Calibration Standard Operation and Maintenance Manual © 2005 DH Instruments, Inc.
  • Page 2 The fidelity of the translation cannot be guaranteed. In case of conflict between the English version and other language versions, the English version predominates. DH Instruments, DH, DHI, ADCS-601, ADCS Tools, AMH, COMPASS, FPG8601, PG7601, PPC3 and RPM4 and are trademarks, registered and otherwise, of DH Instruments, Inc.

  • Page 3: Table Of Contents

    S Y S T E M O V E R V I E W ............5 ADCS-601 SYSTEM..........................5 2.1.1...
  • Page 4 ADCS-601™ OPERATION AND MAINTENANCE MANUAL SETUP..............................38 3.3.1 POSITION THE REFERENCE BENCH .......................38 3.3.2 INSTALL REFERENCE TURBO VACUUM AND ROUGHING PUMPS............39 3.3.3 POSITION THE PG7601 AND FPG8601 PLATFORMS ON THE REFERENCE BENCH ......40 3.3.4 PREPARE FPG8601............................40 3.3.5 MAKE PNEUMATIC INTERCONNECTIONS ON THE REFERENCE BENCH ...........41 3.3.6...
  • Page 5 TABLE OF CONTENTS LOCAL OPERATION, ADCS TOOLS....................67 4.3.1 OVERVIEW ..............................67 4.3.2 MAIN MENU..............................69 4.3.3 ADCS MAIN TOOLBARS ..........................70 4.3.4 ADCS STATUS BAR............................74 4.3.5 ADCS RUN SCREEN...........................74 4.3.5.1 ADCS RUN SCREEN CONTROL PANEL ....................75 4.3.5.2 ADCS SYSTEM DISPLAY ........................76 4.3.5.3 ADCS RUN SCREEN TOOLBAR ......................78 4.3.6 OTHER DEVICE RUN SCREENS .......................79 4.3.6.1...
  • Page 6 ADCS-601™ OPERATION AND MAINTENANCE MANUAL 6.11 CONTROL CABINET, INTERRUPTING PRESSURE SUPPLY TO THE TEST GAS SUPPLY PORT133 6.12 CONTROL CABINET, DRAIN DRIVE AIR TRAPS ................133 6.13 CONTROL CABINET, CHECK GAS SUPPLY PANEL SETTINGS.............133 M A I N T E N A N C E O F T R A C E A B I L I T Y A N D R E C A L I B R A T I O N . . . 1 3 5 PRINCIPLES OF ADCS-601 TRACEABILITY MAINTENANCE............135...

  • Page 7: Tables

    TABLES & FIGURES Table 1. ADCS-601 packing list ......................... 29 Table 2. Reference Bench parts list......................30 Table 3. Interconnections kit parts list ....................... 31 Table 4. ADCS accessory kit parts list....................... 31 Table 5. PG7601 Platform parts list ......................32 Table 6.
  • Page 8 Figure 23. RPM4 front panel........................26 Figure 24. RPM4 rear panel........................26 Figure 25. Turbo pump local interface panel (local control not used in regular ADCS-601 operation)..28 Figure 26. Typical layout of overall ADCS-601 system at site of use............37 Figure 27.
  • Page 9 TABLES & FIGURES Figure 46. FPG8601 piston-cylinder assembly in mounting post ............108 Figure 47. Removing the FPG8601 mounting post ................. 110 Figure 48. Removing the FPG8601 piston-cylinder................. 110 Figure 49. Alignment of the FPG8601 piston in the cylinder ..............113 Figure 50.
  • Page 10 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page VIII...

  • Page 11: A B O U T T H I S M A N U Al

    Before using the manual, take a moment to familiarize yourself with the Table of Contents structure. Set up of an ADCS-601 system should not be attempted without using Section 3. All first time ADCS-601 users should read Section 2. Section 8 is a quick troubleshooting guide. Use the information in Section 8 to troubleshoot unexpected ADCS-601 behavior based on the symptoms of that behavior.
  • Page 12 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page X...

  • Page 13: 1. Introduction

    ADCS-601 is not intended to duplicate the functions of an ADTS in calibrating and testing on- board aircraft instruments. ADCS-601 covers the pressure range of 1 to 380 kPa (0.3 to 120 inHg) in absolute and gauge modes with fully automated operation and state of the art uncertainty.

  • Page 14: Pg7601 Piston Gauge Specifications

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 1.1.2 PG7601 PISTON GAUGE SPECIFICATIONS 1.1.2.1 AMBIENT AND PISTON-CYLINDER CONDITION MEASUREMENTS Temperature Ambient Piston Cylinder Module 0 to 40 0 to 40 Range Resolution 0.01 ± 1 ± 0.1 Measurement Uncertainty Barometric Pressure Range 70 to 110 kPa...

  • Page 15: Mass Set

    1. INTRODUCTION 1.1.2.3 MASS SET Masses > 50g Material 304L non-magnetic stainless steel Finish Electropolished ± 5 ppm or 1 mg, whichever is greater Uncertainty in measured values 1.1.3 FPG8601 GENERAL SPECIFICATIONS 1.1.3.1 AMBIENT AND PISTON-CYLINDER CONDITION MEASUREMENTS Lubrication Gas Piston-Cylinder Temperature: [°C]...

  • Page 16: To 15 Kpa, Fpg8601 And Ppc3-100K

    (k=2) following the ISO “Guide to the Expression of Uncertainty in Measurement.” Note: The uncertainty assigned to the FPG8601 used in an ADCS-601 system is expanded relative to the standard FPG8601 instrument. to allow validation by the PG7601 and an indefinite recalibration interval.

  • Page 17: S Y S T E M O V E R V I Ew

    Pt and Ps range pressure transducers. To this end, the system automatically sets pressure values with very low measurement uncertainty in the range of 1 to 380 kPa (0.3 to 120 inHg) in absolute and gauge modes. ADCS-601 is not intended to duplicate the functions of an ADTS.
  • Page 18 4. Reference roughing vacuum pump 2. Reference bench 5. Utility vacuum pump 3. Turbo pump controller and reference Note: System controller (PC), display and turbo pump (behind controller) keypad not shown Figure 1. ADCS-601 overall, front view © 2005 DH Instruments, Inc. Page 6...
  • Page 19 2. SYSTEM OVERVIEW Figure 2. ADCS-601 system pneumatic schematic Page 7 © 2005 DH Instruments, Inc.
  • Page 20 ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 3. ADCS-601 simplified operational schematic © 2005 DH Instruments, Inc. Page 8...
  • Page 21 2. SYSTEM OVERVIEW Figure 4. ADCS-601 system electrical schematic Page 9 © 2005 DH Instruments, Inc.
  • Page 22 ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 5. ADCS-601 system communications schematic © 2005 DH Instruments, Inc. Page 10...

  • Page 23: Figure 6. Adcs-601 Software, Communications And Control Flow Chart

    2. SYSTEM OVERVIEW Figure 6. ADCS-601 software, communications and control flow chart Page 11 © 2005 DH Instruments, Inc.

  • Page 24: Reference Bench

    2.1.1 REFERENCE BENCH The ADCS-601 Reference Bench is a wooden topped laboratory work bench onto which are installed the PG7601 and FPG8601 pressure standards. Also included on the bench is a pneumatic interconnections box (see Figure 8), the system connections to the device under test (DUT) and the pumping system for the reference vacuum against which absolute pressure is defined.

  • Page 25: Control Cabinet

    2.1.2 CONTROL CABINET The ADCS-601 Control Cabinet is a 19 inch rack mount enclosure into which are mounted the PPC3 pressure controllers that provide automated pressure control for the PG7601 and FPG8601 pressure standards and an RPM4 Reference Pressure Monitor used to perform the validation comparison of the PG7601 and FPG8601 (see Figure 9).

  • Page 26: Figure 9. Control Cabinet, Front And Rear Views

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 1. Main power switch for utility vacuum pump (AC3) 1. Power sockets for system components 2. Main power switch for reference vacuum roughing pump, 2. Utility vacuum supply connection (1/4 in. NPT F) turbo pump and turbo pump controller (AC2) 3.

  • Page 27: Gas Supply Panel

    2.1.3 GAS SUPPLY PANEL The Gas Supply Panel is in the ADCS-601 Control. It is accessed by a door in the lower part of the front of the Control Cabinet (see Figure 9). The Gas Supply Panel is used to set and indicate gas pressure supplies to various ADCS-601 systems and components (see Figure 10).

  • Page 28: Pressure Standards

    PRESSURE STANDARDS 2.2.1 PG7601 PISTON GAUGE The heart of the ADCS-601 Air Data Calibration Standard is a PG7601 gas operated piston gauge. The PG7601 piston gauge system includes: PG7601 piston gauge platform with terminal (on reference bench) PC-7600/7100-10, TC 10 kPa/kg piston-cylinder module (mounted in platform)

  • Page 29: Platform

    2 x 20 vacuum fluorescent display and 4 x 4 membrane keypad. Local commands to PG7601 are not used in normal ADCS-601 operation. See the PG7000 Operation and Maintenance manual for details on local operation of PG7000. 1. Fluorescent display 2.

  • Page 30: 10 Kpa/Kg Piston-Cylinder Module

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL The PG7000 Terminal rear panel assembly provides the communications connection to the PG7000 Platform and the power connection module. Power switch Fuse Power receptacle Connector for cable to PG7000 (25-pin) Cooling fan Figure 14. PG7000 Terminal rear panel 2.2.1.3...

  • Page 31: Amh-38 Automated Mass Handler

    Operation and Maintenance manual is available with much more complete information than is included in this manual. A copy of the AMH manual is provided on the ADCS-601 Support CD and is available at www.dhinstruments.com. 1. KF-40 vacuum connections (2) 5.

  • Page 32: Figure 17. Amh-38 Operating Principle Schematic

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 1. Mass loading bell 8. Mass lifter 2. Binary mass tubes 9. Solenoid valve 3. Binary mass selection pins 10. Binary mass carrier 4. Flexible diaphragm 11. Main mass column rotation belt 5. Mass lifting assembly 12.

  • Page 33: Amh-38 Mass Set

    2.2.2 FPG8601 FORCE BALANCED PISTON GAUGE The ADCS-601 Air Data Calibration Standard includes an FPG8601 force balanced piston gauge to cover the air data pressure range below the range of the PG7601 gas operated piston gauge. The FPG8601 system includes: FPG8601 piston gauge platform with terminal and 10 kPa/kg piston-cylinder (installed on Reference Bench).

  • Page 34: Figure 19. Force Balanced Piston Gauge Operating Principle

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL two chambers closed, the net force resulting from the difference in pressure between the two chambers is transmitted to the load cell through the coupling. The value of the pressure is calculated from the effective area of the piston-cylinder and the net force value measured by the load cell.

  • Page 35: Fpg8601 Platform

    2.2.3 PPC3 PRESSURE CONTROLLERS The ADCS-601 system includes two PPC3 pressure controllers that are installed in the Control Cabinet (see Section 2.1.2). One of the pressure controllers is used to automate pressure control for the PG7601 piston gauge system (see Section 2.2.1). The other is used to automate pressure control of the FPG8601 force balanced piston gauge system.

  • Page 36: Figure 21. Ppc3 Front Panel

    The PPC3 pressure controllers are stand alone products for which a separate Operation and Maintenance manual is available with much more complete information than is included in this manual. A copy of the PPC3 manual is provided on the ADCS-601 Support CD and is available at www.dhinstruments.com.

  • Page 37: Rpm4 A116K Reference Pressure Monitor

    The RPM4 pressure controller is a stand alone product for which a separate Operation and Maintenance manual is available with much more complete information than is included in this manual. A copy of the RPM4 manual is provided on the ADCS-601 Support CD and is available at www.dhinstruments.com.

  • Page 38: Figure 23. Rpm4 Front Panel

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 1. Ready/Not Ready indicator 4. Cursor control keys 2. Display 5. Multi-function keypad 3. Remote activity indicator Figure 23. RPM4 front panel 1. 12VDC power supply connection 8. Electrical power connector (IEC-320-C13) 2. Remote [ENT] connector 9.

  • Page 39: Vacuum Pumps

    Maintenance manuals are available with much more complete information than is included in this manual. A copy of the manual is provided on the ADCS-601 Support CD. The ADCS-601 vacuum pumps are not included in an ADCS-601 system. They must be ordered separately from DHI or from the original equipment manufacturer.

  • Page 40: Figure 25. Turbo Pump Local Interface Panel (Local Control Not Used In Regular Adcs-601 Operation)

    2. Display 5. Turbo pump START/STOP button. 3. Turbo pump life button 6. Turbo pump LO SPEED button Figure 25. Turbo pump local interface panel (local control not used in regular ADCS-601 operation) © 2005 DH Instruments, Inc. Page 28...

  • Page 41: I N S T A L L A T I O

    UNPACKING AND INSPECTION Check that all items included in the ADCS-601 system are present and have NO visible signs of damage. parts list of the major components supplied and how they are packed is provided in Table 1. Unpack and inspect the items following the instructions in Sections 3.1.1 to Section 3.1.11 and detailed parts list Table 1 to Table 10.

  • Page 42: Adcs Control Cabinet

    - ADCS accessories kit in plastic bags - FPG8601 piston insertion tool in a corrugated container - (2) scroll vacuum pumps (if ordered from DHI with the ADCS-601 system) - turbo molecular pump (if ordered from DHI with the ADCS-601 system) To unpack: Remove top and at least two sides from the wood crate.

  • Page 43: Table 3. Interconnections Kit Parts List

    Quick connect stem, 1/4 in. NPT F 102117 2 ea. Quick connect stem, AN4 M 102115 1 ea. Adaptor, KF40 x KF16 103650 1 ea. ADCS-601 Operation and Maintenance Manual (hard copy) 550139 Page 31 © 2005 DH Instruments, Inc.

  • Page 44: Platform And Bell Jar

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL DESCRIPTION PART # 402224 550100 9 ea. Calibration report: - PG7601 Platform - PG7601 10 kPa/kg piston-cylinder module - PG7601 AMH mass set - PG7601 reference vacuum CDG - FPG8601 platform with FPG8601 piston-cylinder - FPG8601 reference vacuum CDG...

  • Page 45: Mass Set (Ms-Amh-38)

    3. INSTALLATION The bullet case screws open by turning the lid counterclockwise. Table 6 details all items included with the PG7601 piston-cylinder module. Table 6. PC-7100/7600-10, TC piston-cylinder module parts list DESCRIPTION PART # 401562 1 ea. PC-7100/7600-10, TC piston-cylinder module 401418 1 ea.

  • Page 46: Automated Mass Handler (Amh-38)

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 3.1.6 PG7601 AUTOMATED MASS HANDLER (AMH-38) The AMH-38 automated mass handler is delivered in a corrugated container with foam inserts. The AMH-38 accessories are included in the same corrugated container. Remove all parts from the shipping container. Be sure not to lose or discard the accessories.

  • Page 47: Fpg8601 Mass Set (Ms-8601-2)

    The FPG8601 mass set is shipped in a black, molded plastic case in a corrugated liner. The FPG8601 mass set is not used in day to day ADCS-601 operation (see Section 7.2.5). Table 10 details all items included with the FPG8601 mass set.

  • Page 48: System Controller

    • Ambient Pressure: Minimize external influences that will cause barometric instability. • Air Currents: Do not install the ADCS-601 Reference Bench under a source of vertical air currents such as an overhead air conditioning or heating ducts. These can exaggerate rate of change of ambient temperature.

  • Page 49: Figure 26. Typical Layout Of Overall Adcs-601 System At Site Of Use

    3. INSTALLATION Figure 26. Typical layout of overall ADCS-601 system at site of use Page 37 © 2005 DH Instruments, Inc.

  • Page 50: Setup

    Allow a minimum of three hours to complete the process. To set up the ADCS-601 system, first unpack it following the instructions in Section 3.1. Then follow the set up instructions in Sections 3.3.1 to 3.3.13 sequentially. Once the system is set up, power it up, initialize it and verify it following the instructions in Section 3.4.

  • Page 51: Install Reference Turbo Vacuum And Roughing Pumps

    3. INSTALLATION 3.3.2 INSTALL REFERENCE TURBO VACUUM AND ROUGHING PUMPS Attach the turbo pump to the vacuum tube that extends down through the bench using a KF40 flange and a the KF40 centering ring with a screen. Orient the pump so that its lateral KF16 flange is facing towards the rear of the bench.

  • Page 52: Position The Pg7601 And Fpg8601 Platforms On The Reference Bench

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 3.3.3 POSITION THE PG7601 AND FPG8601 PLATFORMS ON THE REFERENCE BENCH Place the PG7601 and FPG8601 Platforms and their Terminals in their approximate positions on the bench (see Figure 7). 3.3.4 PREPARE FPG8601 Attach the FPG manifold to the KF16 FPG8601 high control port.

  • Page 53: Make Pneumatic Interconnections On The Reference Bench

    3. INSTALLATION 3.3.5 MAKE PNEUMATIC INTERCONNECTIONS ON THE REFERENCE BENCH Remove and set aside the cover from Reference Bench pneumatic interconnections box by removing the four screws that hold it (see Figure 7). Unwind the (4) 1/8 in. pneumatic lines coming out of the interconnections box.

  • Page 54: Position Control Cabinet And Make Pneumatic, Communications And Electrical Connections To Reference Bench

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Make the PG7601 platform lateral KF25 vacuum port connection to the Reference Bench tubing using a KF25 clamp and centering ring. Ensure that the 1/8 in. pneumatic line labeled 4 is connected between the interconnections box and the valve labeled V4 at the PG7601 lateral KF25 vacuum port.

  • Page 55: Connect Pressure Supplies To Control Cabinet

    3. INSTALLATION Connect the 9 pin D-sub cable labeled PG COM2 to the COM2 port on the rear of the PG7601 Platform. Connect the 9 pin D-sub cable labeled PG COM3 to the COM3 port on the rear of the PG7601 Platform.

  • Page 56: Set Up The

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 3.3.9 SET UP THE PG7601 3.3.9.1 PREPARE THE PLATFORM AND INSTALL THE PISTON- CYLINDER MODULE Connect the PG7601 Terminal to the PG7601 platform rear with 25 pin cable. Connect the PG7601 power cord from the PG7000 Terminal to the power strip underneath the bench.

  • Page 57: Install The Amh-38 Mass Handler

    3. INSTALLATION Open the mass set molded, transit cases and remove all the masses and mass set elements from their plastic bags. Place the pyramidal shaped binary mass carrier on top of the piston cap. Slip the mass loading bell over the binary mass carrier and slide it down until the inside top of the bell sits on the binary mass carrier.

  • Page 58: Install The Reference Vacuum Cdg Assembly

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL they execute. See Section 6.5 for additional information on installing and removing AMH-38 from the PG7601 Platform. Visually inspect the condition of the AMH-38 mass handler by carefully tipping it to look inside. The main mass selection columns should have all their flat surfaces (no ledges) oriented towards the center and all binary mass selection pins should be retracted.

  • Page 59: Complete Fpg8601 Setup

    3. INSTALLATION Connect the 15 pin cable labeled PG CDG from the Control Cabinet to the top of the CDG. Connect the 1/8 drive air tube labeled 3 from the Reference Bench interconnections box to the valve labeled V3 on the PG7601 CDG assembly. 3.3.10 COMPLETE FPG8601 SETUP 3.3.10.1...

  • Page 60: Install The Reference Vacuum Cdg Assembly

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Connect the lower KF16 manifold tube to the KF16 low control port on the FPG8601 mounting post. Connect FPG8601 vacuum isolation valve (valve 9) to the bottom of the lower mounting post at KF25 connection.

  • Page 61: Complete Reference Vacuum Interconnections

    3. INSTALLATION 3.3.11 COMPLETE REFERENCE VACUUM INTERCONNECTIONS Connect the KF40 cross to the AMH- 38 right side (viewed from front) KF40 fitting. Connect the KF40 cross to the vertical vacuum tube (that comes up through the bench). Adjust the position vertical tube necessary...

  • Page 62: Power Up, Initialization, Verification

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL POWER UP, INITIALIZATION, VERIFICATION 3.4.1 MAIN POWER SWITCHES Turn ON the INSTRUMENTS power switch on the front, top left of the Control Cabinet. The (2) PP3 pressure controllers and the RPM4 reference pressure monitor in the Control Cabinet should initialize and go their main run screens.

  • Page 63: Edit And Select Pg7601 Setup File

    PG7601 3.4.3.1 POWER UP In normal ADCS-601 operation, the PG7601 is controlled remotely by ADCS Tools software. For power up and initialization, the PG7601’s PG7000 Terminal keypad and display are used. Turn the PG7601 power ON by pressing the power ON/OFF switch on the rear panel of the PG7000 Terminal.

  • Page 64: Fpg8601

    ADCS Toolbar (see Section 4.3.3). ADCS Tools initializes the complete ADCS-601 system. Warnings that the system calibration has changed may appear. This is normal as ADCS Tools is writing to its database for the first time. Select [OK] in response to these warnings.

  • Page 65: Verify System Operation

    3. INSTALLATION It is imperative that local gravity and test gas species be set correctly prior to ADCS-601 operation or out of tolerance measurement are likely. Run manual FPG8601 internal calibration: - Access the ADCS Tools FPG Run Screen (see Section 4.3.6.2).

  • Page 66: Enter Value Of Local Gravity

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL - Set a target pressure of 10 kPa (3 inHg). The ADCS-601 will transition from the PG7601 to the FPG8601 standard. The FPG8601 pressure controller should descend pressure and set a stable pressure near the target pressure value and indicate Ready.

  • Page 67: Specify Test Gas Species

    3.8.1 RESTART To restart an assembled ADCS-601, follow the steps below. If the ADCS-601 has been shut down for an extended period, consider performing the maintenance functions (see Section 6). If they have been disconnected, connect and apply required pressure supplies to the Control Cabinet rear panel (see Section 1.1.1).

  • Page 68: Shut Down

    2) Long term shut down: Long term shut down is intended to completely shut down the ADCS-601 system when it will not be used for extended periods of time or before it will be disassembled. Long term shut down should be avoided to the extent possible as restarting from long term shut down is more likely to require maintenance procedures before normal operation is restored.

  • Page 69: O P E R A T I O

    4.1.1 SYSTEM CONFIGURATION The ADCS-601 system is completely configured from a hardware and software standpoint when it is delivered. All necessary operating values are entered into individual components and all interfaces are set for internal consistency and to communicate with ADCS Tools software.

  • Page 70: Ready/Not Ready When Using The Fpg8601 Force Balanced Piston Gauge

    TRANSITION BETWEEN STANDARDS, ACTIVE AND INACTIVE STANDARD The ADCS-601 system is made up of two automated pressure standards with overlapping ranges to cover the full pressure range. An automated PG7601 piston gauge covers the range of 15 to 380 kPa (4.5 to 120 inHg) (see Section 2.2.1). The PG7601 range is extended down to 1 kPa (0.3 inHg) by an FPG8601 force balanced piston gauge with automated...

  • Page 71: Table 11. Valve States

    4. OPERATION In normal operation, the ADCS Tools software that manages the ADCS-601 system, determines which pressure standard system to use based on the pressure value to be set. ADCS Tools also handles the transition from one standard to the other when the requested pressure point requires changing the active pressure standard.

  • Page 72: Difference Between Requested And Actual Set Pressure

    The majority of the ADCS-601 pressure range (15 kPa (4.5 inHg) and up) is covered by an automated PG7601 piston gauge (see Section 2.2.1). The automated mass handling system of the PG7601 can load mass in steps of 0.1 kg.

  • Page 73: Frequently Used Functions

    4.2.2 CHANGING PRESSURE UNIT OF MEASURE ADCS-601 supports a variety of pressure units of measure. To change the pressure unit for the ADCS pressure, press the [Unit of Measure] button on the ADCS Run Screen Toolbar (see Section 4.3.5.3) and select the desired unit. When the ADCS pressure unit of measure is changed, the unit of measure of the ADCS-601 components (RPM pressure monitor, PPC pressure controllers) is also changed, if the unit selected is supported by the component.

  • Page 74: Changing Measurement Mode (Absolute, Gauge)

    Execution of certain pressure requests could damage the ADCS-601 system if the TEST(+) port is open. If nothing is connected to the TEST(+) port, it must be plugged with the plug quick connect stem provided.

  • Page 75: Setting Zero Pressure

    [Configuration], [Limits] and then opens the FPG bypass valve (see Figure 29). This causes the pressure on the FPG8601 and at the ADCS-601 TEST(+) port, to be pulled down as low as possible directly by the reference vacuum pump system.

  • Page 76: Setting A Head Correction

    The reference level of the ADCS-601 system is the reference level of the PG7601 piston gauge which is marked on the front of the AMH automated mass handler vacuum chamber.

  • Page 77: Security, User Rights

    4. OPERATION 4.2.8 SECURITY, USER RIGHTS The ADCS Tools program that runs the ADCS-601 system includes provisions to protect against undesired editing and changes to program parameters. The protection system is based on user rights. ADCS Tools always has an active user. User access can be password protected. User rights can be managed to prevent a user from being able to make changes in specific areas of ADCS Tools.

  • Page 78: Changing Active User

    4.2.9 PRESSURE LEAK TEST It is good practice to run a leak test on the ADCS-601 after performing a setup or maintenance operation that requires pressure fittings to be disconnected. The leak test can quickly determine if the ADCS-601 is performing properly. A report detailing the status of the individual portions of the leak test is provided upon test completion.

  • Page 79: Local Operation, Adcs Tools

    4. ADCS Run Screen (see Section 4.3.5): The Run Screen is the main operator interface for actually running the ADCS-601 system. It is equivalent to the front panel of an instrument and includes real time ADCS-601 displays and controls. The ADCS Run Screen includes the ADCS Control Panel, ADCS System Display and ADCS Run Screen Toolbar.

  • Page 80: Figure 32. Adcs-601 Software, Communications And Control Flow Chart

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 32. ADCS-601 software, communications and control flow chart Figure 33. ADCS-601 program window © 2005 DH Instruments, Inc. Page 68...

  • Page 81: Main Menu

    7.3.3, 3.5, View and edit value of local gravity used by PG7601 and FPG8601. View and edit species of test gas used in ADCS-601 system. Run FPG Run automated routine to validate FPG8601 with PG7601. 7.2.3...

  • Page 82: Adcs Main Toolbars

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL MAIN MENU SUB-MENU DESCRIPTION ITEM ITEM SECTION PG PPC Adjust Run a routine to adjust the PG7601’s PPC3 pressure controller 6.10 relative to the PG7601. FPG PPC Adjust Run a routine to adjust the FPG8601’s PPC3 pressure controller 6.10...

  • Page 83: Figure 36. Adcs Run Screen

    4. OPERATION BUTTON DESCRIPTION SECTION When running a test, allows the characteristics of the DUT to be viewed. 4.4.1.1 Device Under Test (DUT) When not running a test, is a shortcut to the DUT Editor. When running a test, allows the characteristics of a support device to be 4.4.1.3 Support Device viewed.
  • Page 84 ADCS-601™ OPERATION AND MAINTENANCE MANUAL BUTTON DESCRIPTION SECTION When running a Manual Test, creates a new Data File. A standard windows 4.4.2.1, Create Data File filebox allows the selection of the Data File name and location. The choices 4.4.3.3 in [Options], [Data File] determine the default file naming convention and file location.
  • Page 85 When a test is running, opens the DUT/Reference Comparison Run 4.4.3.3 DUT/Reference Screen. This display provides convenient, real time, error information Comparison Run calculated for each DUT compared to the ADCS-601. Screen When running an automated test, generates a popup menu to allow the 4.4.2 Device Run Screen selection of the desired Device Run Screen to display.

  • Page 86: Adcs Status Bar

    The ADCS Tools ADCS Run Screen should be considered the equivalent of an instrument front panel. It is the front panel of the ADCS-601 system. The run screen is the interface through which ADCS functions are controlled and readings are observed (see Figure 36).

  • Page 87: Adcs Run Screen Control Panel

    Table 15. Table 15. ADCS Run Screen Control Panel features LABEL DESCRIPTION Green when the ADCS-601 pressure is Ready. Red when the Circular Ready/Not Ready pressure is Not Ready. When the FPG8601 is the active pressure Indicator and Ready timer...

  • Page 88: Adcs System Display

    Enter the difference in height between the reference level of the Head Correction ADCS-601 system and the device under test, in centimeters [cm] (see Section 4.2.6). The value is positive if the DUT is above the ADCS reference level, negative if it is below.

  • Page 89: Table 16. Adcs System Display Symbols

    White <V> on black backgound = vacuum pump is ON and pulling a vacuum. Black <V> on white background = vacuum pump is OFF. TEST(+) port on front of Reference Bench to which ADCS-601 sets TEST(+) port pressures and device under test is connected.

  • Page 90: Adcs Run Screen Toolbar

    17. Table 17. ADCS Run Screen Toolbar BUTTON DESCRIPTION Causes ADCS-601 to vent the TEST(+) port to atmosphere (see Vent Section 4.2.4.2). Always makes PG6701 the active pressure standard and vents unless the <Use the FPG measurement when vented in gauge mode>...

  • Page 91: Other Device Run Screens

    The PG7601 Run Screen should only be used to view PG7601 status. Use of the Toolbar on this run screen may conflict with other ADCS-601 Tools functions. The PG7601 Run Screen Toolbar should only be used for advanced trouble shooting by qualified personnel.

  • Page 92: Fpg8601 Pressure Standard

    The FPG8601 Run Screen should only be used to view FPG8601 status. Use of the Toolbar on this run screen may conflict with other ADCS-601 Tools functions. The FPG8601 Run Screen Toolbar should only be used during ADCS-601 start up or for advanced trouble shooting by qualified personnel.

  • Page 93: Rpm4 Reference Pressure Monitor

    The RPM4 Run Screen should only be used to view RPM4 status. Use of the Toolbar on this run screen may conflict with other ADCS-601 Tools functions. The RPM4 Run Screen Toolbar should only be used for advanced trouble shooting by qualified personnel.

  • Page 94: Automated Testing

    Definition must also be set up (see Section 4.4.1.2). If support devices that are not part of the ADCS-601 such as a multimeter or a temperature chamber are needed to run a test, Support Device Definitions must be set up to define them (see Section 4.4.1.3).
  • Page 95 4. OPERATION The DUT Editor provides features to create, edit, view and remove DUT Definitions from the ADCS Tools database. Access the DUT Editor by pressing [Setup], [DUT] from the ADCS Tools main menu or pressing the [DUT Editor] button on the main toolbar. When selected, the last accessed DUT Definition displays.

  • Page 96: Setting Up Test Definitions

    COMPASS features. It can also be accessed on the ADCS-601 system controller in the COMPASS for Pressure program group reached using the Windows START button , Programs. Test Definitions are used to define a specific test procedure including the sequence of test points and a large number of operational details.

  • Page 97: Setting Up Support Devices

    ADCS Tools uses the engine of COMPASS for Pressure calibration software to manage automated testing using ADCS-601. The Support Device Editor is a COMPASS for Pressure Device Editor. See the COMPASS for Pressure User’s Manual for complete information on Device Editors and Support Device Definitions.

  • Page 98: Running Automated Tests

    [?] button, when available, in COMPASS features. It can also be accessed on the ADCS-601 system controller in the COMPASS for Pressure program group reached using the Windows START button , Programs.

  • Page 99: Running A Manual Test

    RUNNING A MANUAL TEST ADCS Tools uses the engine of COMPASS for Pressure® calibration software to manage automated testing using ADCS-601. The Run Manual Test function supported by ADCS Tools is a COMPASS for Pressure feature. See the COMPASS for Pressure User’s Manual Run Modes Section for complete information on running automated tests.

  • Page 100: Test Run Screens

    - Select Test Definition to be run. By default, the Test Definition specified in the DUT Definition is selected. Double click the desired Test Definition. - After the Test Definition has been selected, most ADCS-601 users press [Finish] to skip remaining initialization steps and go directly to running the test.

  • Page 101: Data Plot Run Screen

    The COMPASS for Pressure manual is an on-line manual available by pressing the [?] button, when available, in COMPASS features. It can also be accessed on the ADCS-601 system controller in the COMPASS for Pressure program group reached using the Windows START button , Programs.

  • Page 102: Dut/Reference Comparison Run Screen

    The COMPASS for Pressure manual is an on-line manual available by pressing the [?] button, when available, in COMPASS features. It can also be accessed on the ADCS-601 system controller in the COMPASS for Pressure program group reached using the Windows START button , Programs.

  • Page 103: Test Data

    COMPASS for Pressure manual is an on-line manual available by pressing the [?] button, when available, in COMPASS features. It can also be accessed on the ADCS-601 system controller in the COMPASS for Pressure program group reached using the Windows START button , Programs.

  • Page 104: Running A Model 3682 Air Data Calibrator

    When the ADCS-601 is connected to the model 3682 ADC, do not execute any function on the 3682 that will cause it to vent pressure unless the ADCS-601 is vented first. Causing pressure on the ADCS-601 TEST(+) port to vent when the...
  • Page 105 4. OPERATION Select the DUT with <Label> <King 3682> and <Output Label> <Ps> or <Pt> as desired. Press [Next]. Enter the serial number of the DUT and other identifying information in the fields provided at the top of the display. Do not change to <IEEE Address> Also verify that the range is correct, then press [Next].
  • Page 106 ADCS-601™ OPERATION AND MAINTENANCE MANUAL If the DUT and Test selections are for a <Ps> transducer, a prompt asking whether to determine the <Offset Check Point> or not is presented. Press [Yes] on the pop-up window to run this step. It is not necessary to run an offset Check Point when running a test that will determine as received error or when trying to evaluate the DUT.
  • Page 107 • Press [OK] to continue. The ADCS-601 vents the pressure immediately after [OK] is pressed. It is important that the ADCS-601 vent rather than the model 3682 venting the pressure. Page 95 © 2005 DH Instruments, Inc.
  • Page 108 ADCS-601™ OPERATION AND MAINTENANCE MANUAL When prompted by the popup below, abort model 3682 operation by pressing its red [ABORT] button. Then set <Calibration Automatic> mode and the IEEE-488 address on the model 3682 screen as follows: • Press [Calibration Automatic] •...

  • Page 109: Running A Standardization

    When the ADCS-601 is connected to the model 3682 ADC, do not execute any function on the 3682 that will cause it to vent pressure unless the ADCS-601 is vented first. Causing pressure on the ADCS-601 TEST(+) port to vent when the...
  • Page 110 Set the ADCS-601 to absolute measurement mode using the [MODE] button on the ADCS Tools Main Run Screen. Vent the ADCS-601 using the [VENT] button on the ADCS Tools Main Run Screen. Enter the appropriate <Upper Limit> value on the ADCS Run Screen. Enter 32 inHg when calibrating the Ps transducer and 110 inHg when calibrating the Pt transducer.
  • Page 111 [x] in the upper right hand corner of the Run Screen. ADCS Tools sets the test pressure, dwells for 60 seconds, determines the pressure value set by the ADCS-601 and prompts the user with a dialog box. Page 99...
  • Page 112 Pressing [ADVANCE] on the model 3682 after the last point causes the 3682 to vent while the ADCS-601 is still at a set pressure which can damage the ADCS-601.
  • Page 113 4. OPERATION When the test is complete the Test Complete form displays. Press [Exit Test] to close the dialog box and return to the ADCS Main Run Screen. On the model 3682, press [ADVANCE] and follow its prompts to complete the standardization process.
  • Page 114 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page 102...
  • Page 115 The overall ADCS-601 system is controlled by a Windows based personal computer running ADCS Tools software. Interfacing between a host computer and the ADCS-601 system computer is not available at the time of publication of this manual. Individual ADCS-601 components such as the PG7601 and the PPC3 pressure controllers can be addressed individually on their RS232 and/or IEEE-488 interfaces, but this is not a normal part of ADCS-601 operation.
  • Page 116 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page 104...

  • Page 117: Summary

    6. GENERAL MAINTENANCE AND ADJUSTMENTS SUMMARY PG7000 was designed for very low maintenance operation. However, certain regular maintenance functions are required to assure reliability and the best performance over time. These are summarized in Table 18, including cross-references to sections of this manual detailing each procedure. Table 18.

  • Page 118: Fpg8601, Check Bubbler And Add Water If Necessary

    To check the bubbler level proceed as follows: Go to the back of the ADCS-601 Reference Bench to observe the back of the FPG8601 Platform (see Figure 45). Observe the water level in the bubbler (clear plastic reservoir on the right side looking at the FPG8601 from the rear).

  • Page 119: Fpg8601, Remove Clean And Reinstall The Piston-Cylinder

    Restart the FPG8601 by pressing the [ON] button on the FPG Run Screen (see Section 4.3.6.2). Wait until the FPG8601 start up procedure is complete. ADCS-601 should now be ready to resume normal operation. FPG8601, REMOVE CLEAN AND REINSTALL THE PISTON- CYLINDER 6.3.1...

  • Page 120: Figure 46. Fpg8601 Piston-Cylinder Assembly In Mounting Post

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL The FPG8601 readings may also become noisy if the piston is no longer well centered in the cylinder. This may occur when installing the piston-cylinder or due to back pressure or lack of lubricating pressure. When this occurs, the piston-cylinder needs to be manipulated to reestablish the gas film between the piston-cylinder that lubricates them so the piston is perfectly mobile.

  • Page 121: Removing The Piston-Cylinder From The Mounting Post

    6. GENERAL MAINTENANCE AND ADJUSTMENTS 6.3.2 REMOVING THE PISTON-CYLINDER FROM THE MOUNTING POST Unless the piston-cylinder is obviously contaminated, consider using in situ methods to restore mobility of the piston in the cylinder before removing it and cleaning it (see Section 6.3.7).

  • Page 122: Figure 47. Removing The Fpg8601 Mounting Post

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 47. Removing the FPG8601 mounting post Put on gloves. NEVER touch the lapped surfaces (polished appearance) of the piston or cylinder with your bare hands. Body oils and acids can permanently etch the surfaces.

  • Page 123: Removing The Piston From The Cylinder

    6. GENERAL MAINTENANCE AND ADJUSTMENTS Cup the piston-cylinder in your hand, remove the indexing pin (see Figure 48) and allow the piston-cylinder to drop in a straight vertical descent. Place the piston-cylinder on a flat surface on several lint-free towels. When placing the piston-cylinder on the table, make sure to set it down in the vertical position.

  • Page 124: Cleaning The Piston And Cylinder

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL 6.3.4 CLEANING THE PISTON AND CYLINDER When a piston-cylinder has been shipped, it should usually be cleaned before it is installed in the FPG8601. Cleaning the piston-cylinder may also be necessary to correct noise in FPG8601 pressure measurements cause by poor mobility of the piston due to contamination between the piston and the cylinder.

  • Page 125: Putting The Piston Into The Cylinder

    6. GENERAL MAINTENANCE AND ADJUSTMENTS 6.3.5 PUTTING THE PISTON INTO THE CYLINDER Never attempt to put the piston into the cylinder without using the special piston insertion tool and the procedure described in this section. Doing otherwise can result in the piston cocking in the cylinder and damage to both parts.

  • Page 126: Installing The Piston-Cylinder In The Mounting Post

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Using gloves and minimizing contact with the outside polished surface of the piston, carefully place the piston on the top of the piston insertion tool. The serial number etched on the inside of the piston should be towards the top and right side up.

  • Page 127: Restoring Piston-Cylinder Lubrication And Mobility

    6. GENERAL MAINTENANCE AND ADJUSTMENTS Tighten the first piston retaining pin. Verify that both retaining pins are tight. Verify that the silicon O-ring is in place on the upper mounting post (between the upper and lower mounting post). Attach the lower mounting post, aligning it with the cylinder. Place a hand under the lower mounting post and firmly press up.
  • Page 128 ADCS-601™ OPERATION AND MAINTENANCE MANUAL accessed and manipulated. Remove the lower mounting post following the instruction in Section 6.3.2, but do not remove the piston-cylinder. Observe the value of <N> on the ADCS Tools FPG Run Screen (see Section 4.3.6.2). This is the output of the FPG8601 load cell. Alternate the four methods until the output of the load cell is consistently stable ±...

  • Page 129: Disassemble Platform And Remove Mounting Post Prt

    6. GENERAL MAINTENANCE AND ADJUSTMENTS PG7601, DISASSEMBLE PLATFORM AND REMOVE MOUNTING POST PRT It is not normally necessary to remove the mounting post PRT for recalibration. It can be recalibrated in-situ by comparison with a reference PRT (see Section 7.3.4.). To disassemble the platform and remove the mounting post platinum resistance thermometer, proceed as follows: Remove the piston-cylinder module from the mounting post (see Section 6.6.1) and replace with the...

  • Page 130: Remove And Reinstall The Automated Mass Handler And Mass Set

    Put the ADCS-601 system into gauge measurement mode (see Section 4.2.3). Vent the ADCS-601 system by pressing the [VENT] button on the ADCS Run Screen Toolbar. Wait for the operation to complete. Press the [Pause] button on the ADCS Main Tool Bar to suspend remote communication within the ADCS-601 system.

  • Page 131: Figure 50. Amh Installation On Pg7000 Platform

    6. GENERAL MAINTENANCE AND ADJUSTMENTS Figure 50. AMH installation on PG7000 Platform INSTALLING THE AMH-38 AUTOMATED MASS HANDLER To install the AMH-38 mass handler on the PG7601 Platform, first install the mass set (see Section 6.5.2). Then proceed as follows (see Figure 50). Insert the mass lifting shaft into the AMH: With the AMH-38 sitting on a flat surface and with all pneumatic and electrical connections in place, insert the mass lifting shaft into the hole in the center of the AMH mass lifter and slide it down until the trim mass tray...
  • Page 132 Resume normal ADCS-601 operation: Press [ESC] on the PG7601 until its main run screen appears. Press [PAUSE] on the ADCS Main Tool Bar (see Section 4.3.3) to resume normal ADCS-601 system operation. Do not operate AMH-38 when using a PG7601 in “absolute by vacuum” mode without having a vacuum supply connected to AMH-38.

  • Page 133: The Mass Set

    6. GENERAL MAINTENANCE AND ADJUSTMENTS 6.5.2 THE MASS SET When removing the AMH and mass set, start by removing the AMH mass handler. See Section 6.5.1. PG7000 AMH masses are shipped in reusable, molded shipping and storage cases. One of the cases contains the binary masses, binary mass carrier, mass bell and lifting shaft/trim mass tray.

  • Page 134: Remove, Clean And Reinstall The Piston-Cylinder Module

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL SHOWN IS THE MS-AMH-38 MASS SET FOR THE AMH-38 MASS HANDLER. SMALLER MASS SETS MAY INCLUDE LESS MAIN MASS DISCS. MASS SETS FOR THE AMH-100 MASS SET ARE IDENTICAL TO AMH-38 BUT THE MAIN MASSES ARE LARGER 10 KG DISCS AND A 7TH BINARY MASS TUBE OF 6.4 KG IS INCLUDED.

  • Page 135: Installing The Piston-Cylinder Module

    6. GENERAL MAINTENANCE AND ADJUSTMENTS One the AMH automated mass handler and mass set have been removed from the PG7601 Platform, proceed as follows to remove the piston-cylinder module: Unscrew the piston-cylinder module from the PG7601 Platform mounting post. Hold the module by the knurled circumference and rotate it counter-clockwise all the way out until it can be removed from the mounting post.

  • Page 136: Disassembling The Module And Cleaning The Piston-Cylinder Assembly

    If symptoms of contamination develop rapidly with operation after cleaning the piston-cylinder module, there is almost certainly a source of contamination within the ADCS-601 system. This source must be identified and eliminated to reduce piston-cylinder cleaning frequency. Very often, the...

  • Page 137: Figure 53. 10 Kpa/Kg Gas Piston-Cylinder Module, Expanded View

    6. GENERAL MAINTENANCE AND ADJUSTMENTS The piston assembly (piston + piston head + adjusting mass + piston cap + piston cap retaining screw) is part of the mass load. Its mass has been measured and is reported in the calibration report. Use caution when handling these parts, to avoid changing their mass by swapping parts, contaminating them or leaving parts out in reassembly.

  • Page 138: Figure 54. 10 Kpa/Kg Piston Insertion Tool

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 54. 10 kPa/kg Figure 55. 10 kPa/kg gas piston-cylinder piston insertion tool module sleeve nut tool © 2005 DH Instruments, Inc. Page 126...

  • Page 139: Lubricating The Piston-Cylinder Module

    6. GENERAL MAINTENANCE AND ADJUSTMENTS 6.6.3.3 LUBRICATING THE PISTON-CYLINDER MODULE The purpose of piston-cylinder module lubrication is to minimize wear to its components. The proper long term functioning of the module requires that specific areas of certain components be properly lubricated, especially after they have been cleaned.

  • Page 140: Cleaning The Piston-Cylinder

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 56. 10 kPa/kg piston-cylinder module lubrication chart 6.6.3.4 CLEANING THE PISTON-CYLINDER To clean the piston-cylinder, the piston-cylinder module must first be disassembled (see Section 6.6.3.2). DO NOT undertake piston-cylinder module disassembly without familiarizing yourself with Section 6.6.3.2 of this manual. Incorrect disassembly may damage or destroy the piston-cylinder element.
  • Page 141 6. GENERAL MAINTENANCE AND ADJUSTMENTS Reinsert the piston (with cap installed) into the cylinder. Create a bath of water and mild liquid dishwashing detergent. Distilled water is acceptable. De-ionized water is best. Detergent must be free of additives (i.e.,must not contain lotions or softening agents which may leave a residue after cleaning).

  • Page 142: Piston Position Detection Adjustment

    To automatically adjust the PG7601 piston position indication system, proceed as follows: Prepare the ADCS-601 system for local operation of individual components: Vent the ADCS-601 system by pressing the [VENT] button on the ADCS Run Screen. Wait for the operation to complete.

  • Page 143: Replace Piston Rotation Drive Belts

    6. GENERAL MAINTENANCE AND ADJUSTMENTS Figure 57. PG7601 piston stroke and zones PG7601, REPLACE PISTON ROTATION DRIVE BELTS Periodic replacement of the drive system belts may be necessary to retain maximum performance of the motorized piston rotation system. Due to specific material properties of the drive belts, it is important that only genuine DHI replacement parts be used.

  • Page 144: Fpg8601, Adjust Ppc3 Pressure Controllers

    TEST(+) port. Before running the adjustment routine, be sure any device connected to the TEST(+) port that will not be able to handle a pressure in the ADCS-601 range. If nothing is connected to the TEST(+) port is should be plugged with the plug provided.

  • Page 145: Control Cabinet, Drain Drive Air Traps

    6.12 CONTROL CABINET, DRAIN DRIVE AIR TRAPS The ADCS-601 Control Cabinet contains two traps to clean the drive air that is supplied to the ADCS-601 system (see Figure 10). These should be emptied regularly. The traps can be emptied without removing pressure. To empty the traps proceed as follows.
  • Page 146 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page 134...

  • Page 147: Principles Of Adcs-601 Traceability Maintenance

    (see Section 2.2.2). In the air data range of 1 to 15 kPa (0.3 to 4.5 inHg) that is covered by the FPG8601 in the ADCS-601 system, the typical pressure measurement uncertainty of the FPG8601 (see the most recent revision of DHI Technical Note 2090TN05) is much lower than is required to maintain an adequate uncertainty ratio with modern Air Data Test Sets (ADTS).

  • Page 148: Fpg8601, Zero And Adjust Span Of Load Cell

    ADJUSTMENT ACDS Tools can be set to zero and adjust the span of the FPG8601 load cell automatically as part of regular ADCS-601 operation. This is the default setting and recommended procedure. ADCS Tools, [Maintenance], [FPG Cal Options] provides options concerning when the FPG8601 load cell should be zeroed and spanned automatically.

  • Page 149: Operator Initiated Load Cell Zero And Span Adjustment

    OPERATOR INITIATED LOAD CELL ZERO AND SPAN ADJUSTMENT The ADCS-601 operator can initiate an FPG8601 load cell zeroing and/or span adjustment process. To avoid intefering with ADCS-601 operation, this should be done when the FPG8601 is NOT the active pressure standard (see Section 4.1.3).

  • Page 150: Running Validation

    Disconnect any device that is connected to the TEST(+) port at the port and plug the port using the plug quick connector stem provided. Put the ADCS-601 system into the measurement mode in which the validation is to be run (see Section 4.2.3). The absolute mode validation is used to fully verify the system and is the default mode for FPG Validation.
  • Page 151 PG7601 pressure standard (see Section 7.2.3.1). <FAIL> indicates that the FPG8601 pressure standard may be out of tolerance or there is a problem with another component of the ADCS-601 system. Troublshooting should be performed to determine the cause of the failure and correct it (see Section 7.2.3.1).

  • Page 152: Figure 59. Adcs Tools Fpg Validation Setup Form

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL [View Data] accesses and displays the validation data file with a detailed log of the validation test data. [Generate Report] opens the Report Editor to generate a report from the validation data file. [Re-Run Validation] re-runs the validation test immediately.

  • Page 153: Viewing Fpg Validation Data

    In normal operation, the only adjustments to the load cell that are necessary to maintain in tolerance measurements is to zero and span it which can be performed automatically by the ADCS-601 system (see Sections 2.2.2, 7.2.2).

  • Page 154: Linearity Verification Procedure

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL See Section 7.2.5.2 for the recommended procedure to verify the FPG8601 load cell linearity. 7.2.5.2 LINEARITY VERIFICATION PROCEDURE To verify the FPG8601 load cell linearity proceed as follows: Remove the FPG8601 piston-cylinder following the procedure described in Section 6.3.2.

  • Page 155: Fpg8601 And Pg7601, Zero Reference Vacuum Cdgs

    To zero the ADCS-601 CDGs proceed as follows: Prepare the ADCS-601: Put the ADCS-601 system into gauge mode and wait for the mode change to complete (see Section 4.2.3). Vent the ADCS-601 system by pressing the [VENT] button on the ADCS Run Screen.
  • Page 156 When the ADCS-601 system is powered, the CDGs are powered. In ADCS Tools press [Maintenance], [Run CDG Zero]. A message instructing you to set up the ADCS-601 hardware is presented. Set up the hardware following steps through . Setup the ADCS-601 vacuum manifold for CDG zeroing.
  • Page 157 Reassemble the KF40 cross for normal ADCS-601 operation following steps through above in reverse order. Put the ADCS-601 in absolute measurement mode (see Section 4.2.3) and verify that the vacuum reference pressure pulls down as expected. Page 145 © 2005 DH Instruments, Inc.

  • Page 158: Adjust On-Board P, T, H Sensors

    ADCS-601™ OPERATION AND MAINTENANCE MANUAL Figure 61. ADCS Tools CDG Zero System Display 7.2.7 PG7601, ADJUST ON-BOARD P, T, H SENSORS The PG7601 Platform includes sensors to measure ambient conditions. The values measured are used to calculate ambient air density which is used to make the air buoyancy correction to the force applied by the PG7601 masses in gauge mode.

  • Page 159: Recalibration

    In addition to the metrology maintenance functions, to assure that the pressure values set and measured by the ADCS-601 remain within predicted measurement uncertainty levels over time, regular recalibration of certain components is required. The recalibrations required are summarized in Table 23, including cross-reference to manual sections detailing each procedure.

  • Page 160: Calibration Of Piston-Cylinder Module

    Uninformed or accidental altering of this information may lead to out of tolerance measurements. Piston-cylinder module information should only be edited by qualified personnel as part of the ADCS-601 calibration or recalibration process. When a piston-cylinder is recalibrated, the results are given in a calibration report.

  • Page 161: Pg7601, Calibration Of Mass Set

    Piston gauge mass sets are often calibrated in a facility other than that in which the ADCS-601 system is used so calibrating the mass set requires removing it from the PG7601 Platform and shipping it. If the mass set and the piston- cylinder module are to be calibrated by the same facility, they are usually shipped together, with the PG7601 Platform if necessary.

  • Page 162: Updating Mass Set Calibration Information

    The calibration report lists a value measured by the calibration facility for each mass. These values may change from calibration to calibration and the new values must be entered into the ADCS-601 system so that they are used in its pressure calculations. For additional information on PG7601’s AMH-38 mass set characteristics and how they are stored in the PG7601 platform, see the PG7000 Operation and Maintenance Manual.

  • Page 163: Calibration Of Piston-Cylinder Module Temperature Sensor

    7. MAINTENANCE OF TRACEABILITY AND RECALIBRATION Figure 64. ADCS Tools PG7601 AMH-38 Mass Set Calibration Form 7.3.4 PG7601, CALIBRATION OF PISTON-CYLINDER MODULE TEMPERATURE SENSOR 7.3.4.1 OVERVIEW The PG7601 Platform uses a platinum resistance thermometer (PRT) embedded in the piston-cylinder mounting post to measure the temperature of piston- cylinder module.

  • Page 164: Procedure

    0.05ºC. Resume normal ADCS-601 operation: Press [ESC] on the PG7601 until its main run screen appears. Press [PAUSE] on the ADCS Main Tool Bar to resume normal ADCS-601 system operation. 7.3.4.3 CALCULATING AND UPDATING PISTON-CYLINDER...
  • Page 165 The offset value of the piston-cylinder mounting post platinum resistance thermometer may change from calibration to calibration. The new offset value determined above must be entered into the ADCS-601 system so that it is used in its calculations. For additional information on PG7601 characteristics and how they are stored in the PG7601 platform, see the PG7000 Operation and Maintenance Manual.

  • Page 166: Pg7601, Calibration Of Reference Vacuum Cdg

    To be calibrated, the CDG and its power supply and readout must be removed from the ADCS-601 system. See Section 7.3.5.2 for instructions on removing the PG7601 CDG assembly and readout. The CDG and its power supply/readout are completely autonomous elements whose calibration is independent of ADCS-601.
  • Page 167 Prepare the ADCS-601 for removal of the CDG: Vent the ADCS-601 system by pressing the [VENT] button on the ADCS Run Screen (see Section 4.2.3). Wait for the operation to complete. Put the system into gauge mode by pressing the [MODE] button on the ADCS Run Screen.
  • Page 168 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page 156...

  • Page 169: Overview

    ADCS-601 operation. This troubleshooting guide is intended as an aid in identifying the cause of unexpected ADCS-601 behavior and determining whether the behavior is due to normal operation or an internal or external problem.
  • Page 170 ADCS-601™ OPERATION AND MAINTENANCE MANUAL SYMPTOM PROBABLE CAUSE SOLUTION PG7601 automated motorized rotation Automated motorized rotation is OFF. Press [ROTATE], <1mA> PG7000 is not operating. Operation and Maintenance Manual PG7601 automated pressure control In absolute by vacuum measurement Wait for vacuum to reach less than 20 Pa,...

  • Page 171: A P P E N D I

    9. APPENDIX CONVERSION OF NUMERICAL VALUES PG7000 performs all internal calculations in SI units. 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. The tables below provide the conversion coefficients used by PG7000 to convert numerical values expressed in SI units to corresponding values expressed in other units.

  • Page 172: Glossary

    Measurement Mode atmospheric pressure) and absolute (pressure relative to vacuum). A group of masses used on the PG7601 piston gauge. In ADCS-601 the mass set is a an AMH- MS (Mass Set) 38 mass set with a nominal total mass of 38 kg.

  • Page 173: Warranty Statement

    9. APPENDIX WARRANTY STATEMENT Except to the extent limited or otherwise provided herein, DH Instruments, Inc. (DHI) 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 174 ADCS-601™ OPERATION AND MAINTENANCE MANUAL © 2005 DH Instruments, Inc. Page 162...

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