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Laversab 6600 User Manual

Rev. b4 high accuracy automated pressure controller
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MODEL 6600 Rev. B4
USER'S MANUAL
LAVERSAB INC.,
505 GILLINGHAM LANE .
SUGAR LAND TX 77478
(281) 325-8300
FAX: (281) 325-8399
Email: aservice@laversab.com
Document Number : 9051 REV B4
Date: June 07, 2011.

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  • Page 1 To buy, sell, rent or trade-in this product please click on the link below: http://www.avionteq.com/Laversab-6600-Automated-Pitot-Static-Tester.aspx www.avionteq.com MODEL 6600 Rev. B4 USER'S MANUAL LAVERSAB INC., 505 GILLINGHAM LANE . SUGAR LAND TX 77478 (281) 325-8300 FAX: (281) 325-8399 Email: aservice@laversab.com Document Number : 9051 REV B4...
  • Page 2 Inc. warrants products of its own factory against defects of material or workmanship for a period of three years from date of sale. Liability of Laversab Inc. under this warranty shall be limited to replacing, free of charge (FOB Houston, Texas), any such parts proving defective within the period of this warranty, but Laversab Inc.
  • Page 3 COPYRIGHT NOTICE Copyright (c) 2007 onward by Laversab Inc. All rights reserved. The content of this manual may not be reproduced in any form by any means, in part or in whole, without the prior written permission of Laversab Inc.

  • Page 4: Revision History

    Release Date Description 9051 Rev A 12/20/2007 6600 User’s Manual 9051 Rev B 04/20/2008 6600 Rev B User’s Manual 9051 Rev B1 12/09/2009 6600 Rev B1 User’s Manual 9051 Rev B2 04/27/2010 6600 Rev B2 User’s Manual 9051 Rev B3 02/23/2011 6600 Rev B3 User’s Manual...
  • Page 5 WARNING THE 6600 USES LINE VOLTAGES FOR ITS OPERATION WHICH ARE POTENTIALLY DANGEROUS. IMPROPER OPERATION OF THIS EQUIPMENT MAY RESULT IN PERSONAL INJURY OR LOSS OF LIFE. HENCE THE EQUIPMENT DESCRIBED IN THIS MANUAL SHOULD BE OPERATED ONLY BY PERSONNEL TRAINED IN PROCEDURES THAT WILL ASSURE SAFETY TO THEMSELVES, TO OTHERS AND TO THE EQUIPMENT.

  • Page 6: Table Of Contents

    Controls and Connections ................ 2 2.1 Main Unit Top Panel ....................2 2.2 Remote Unit Top Panel ................... 10 Section 3: Understanding the 6600 ................13 3.1 Start Up ........................13 3.2 Main Operating Screen ..................15 3.2.1 Displayed Parameters ...................
  • Page 7 TABLE OF CONTENTS (contd.) Section 7: Maintenance ....................64 Section 8: Communication Interface ................65 8.1 RS232 Serial Interface ....................65 8.2 Communication Syntax ................... 65 Appendix A: Error Codes ....................69 Appendix B: Specifications ....................70 Appendix C: Connector Pin-Outs ..................71 Appendix D: Repair and Return Policies ................

  • Page 8: Introduction

    The user has the ability to program into the 6600 a profile of set-points to be controlled in a sequence. Once such a profile has been setup, the user can command the unit to move from one set-point to the next simply by pushing the 'GO' button.

  • Page 9: Controls And Connections

    Remote Unit connection: The 6600 is provided with a 50 foot remote cable to connect to the Remote unit. The male end of the remote cable is connected here on the top panel. The female end of the remote cable is connected to the Remote unit.
  • Page 10 Figure 2.1 (A)
  • Page 11 Figure 2.1 (b)
  • Page 12 The remote cable is normally left connected to the 6600 at the “Remote” connector on the top panel and is wrapped around four cord posts on the lid of the 6600 case. The cord retainers on top of these posts swivel in either direction and latch at 180 degree positions, allowing easy wrapping and unwrapping of the remote cable.
  • Page 13 Primary Static Vent (Ps1 Vent) : In the event that the 6600 is in-operable due to a malfunction or due to loss of power, it is possible to vent the Static system manually. This is done using the metering valve labeled “Ps1 Vent”.
  • Page 14 Secondary Static Vent (Ps2 Vent) : In the event that the 6600 is in-operable due to a malfunction or due to loss of power, it is possible to vent the Ps2 system manually. This is done using the metering valve labeled “Ps2 Vent”.
  • Page 15 Figure 2.2...
  • Page 16 Figure 2.3...

  • Page 17: Remote Unit Top Panel

    4 lines of 40 characters each. There are five function keys just below the display. NEXT SCREEN and PREVIOUS SCREEN are used to move between the different operating screens of the 6600. At present there are only three upper level operating screens : Main, Calibrate and Self test.
  • Page 18 5000, press ‘5’ and then press ‘000’. TARGET VALUE KEYS : There are typically 4 parameters that the 6600 controls - Airspeed (or Pt pressure), Altitude (or Ps1 pressure), Climb (or Pt, Ps1, Ps2 rate) and Secondary Altitude (or Ps2 pressure). Each parameter can be changed using a specific target-value key.
  • Page 19 The Ps2 UNITS key brings up the choices for Ps2 units onto the 4th line of the display. Use CANCEL to exit this unit selection mode. Use the arrow keys to move between the choices. Use the ENTER key to select a choice. There are eight Ps2 units to choose from. For more information on Units Selection please refer to Section 3.2.3.

  • Page 20: Understanding The 6600

    On the Main unit, turn the AC On/Off switch ON. On the Remote unit, turn the ON/OFF switch ON. The 6600 will turn ON and the Remote unit will turn ON. The display will briefly show the sign-on screen and then go into the Main screen. The Main screen should appear as follows:...
  • Page 21 Prev Screen 2-output 3-output Leak mode Leak format format Screen Main Screen Function Select Function Select Screens (2) View Limits Password Change Limits Change knots rate Execute profile (Return to Main) Setup Profile Height Correction Set Ground Go to Ground Next Screen Password...

  • Page 22: Main Operating Screen

    In the 2-output format, information pertaining only to Pt and Ps1 is displayed. Although all three outputs of the 6600 are always active, if only the Pt and Ps1 outputs are connected to the aircraft then the Main Screen should be in the 2-output format. The 2-output format appears as shown below.
  • Page 23 The best indication that the screen is in the 2-output format is that the middle vertical section of the display will have Rate units that indicate “per minute”. In the sample display shown above, the Rate units are “Feet/min”. Main Screen: 3-output format If all three outputs (Pt, Ps1 and Ps2) are connected to the aircraft then the Main Screen should be in the 3-output format.
  • Page 24 2-output format Units: knots Feet/min Feet Actual: 1005 Target: 20.0 3000 3-output format Units: knots Feet Feet Actual: 1006 1005 Target: 20.0 Pt units Pt Target value Ps1 units 10. Ps1 Target value Ps2 units (3-output format only) 11. Ps2 Target value (3-output format only) Ps1 Rate units (2-output format only) 12.

  • Page 25: Displayed Parameters

    3.2.1 DISPLAYED PARAMETERS There are 15 basic parameters of importance while using the 6600. Each of these parameters is displayed on the Main Screen either on the 2-output format or on the 3-output format. The 15 parameters are indicated in the 2-output and 3-output formats shown in Figure 3.2 above.
  • Page 26 -output format Units: knots Feet Feet Actual: 101.2 1006 1005 Target: 20.0 Parameter 4. Ps1 Rate Units: Unit of measurement for displaying the rate of change of the Ps1 output. This parameter is accessible only on the 2-output format. Normally, the Ps1 Rate unit used is ‘Feet/min’...
  • Page 27 20.0 3000 Note: The “Actual” values for Ps2 rate and Pt rate are not displayed any where in the 6600 since they are not used as a reference for checking any specific instrument or function on the aircraft. The Ps1 rate, however, is used as a reference for checking the VSI on the aircraft, and is therefore displayed.
  • Page 28 For details please refer to ”Effects of Rate Target Value” in section 3.2.2. In the sample screen below, the 6600 has been commanded to achieve a rate of change of 3000 Feet/min. on the Ps1 and Ps2 outputs. The Ps1 Rate “Target” value is meaningful only when the Ps1 (and/or Ps2, Pt) output is in the “Control”...
  • Page 29 “Actual” value in the current Pt units. The pressure is not being changed by the 6600. In this mode, the Pt control-valve inside the 6600 that is used to change the pressure at the Pt output is pneumatically isolated from the Pt output. In the Measure mode, the Pt “Target”...
  • Page 30 In this mode, the Ps1 control-valve inside the 6600 that is used to change the pressure at the Ps1 output is pneumatically isolated from the Ps1 output. In the Measure mode, the Ps1 “Target” value is meaningless, since the 6600 is not trying to achieve any specific target value.
  • Page 31 -output format Units: knots Feet Feet Actual: 101.2 1006 1005 Target: 20.0 Error Messages : The Main screen is also used to display error conditions as they occur. The errors are displayed on the last (4 ) line of the display, as shown below. Errors are shown on the 4 line on both 2-output and 3-output formats.

  • Page 32: Target Value Entry

    Use the numeric keys to enter the value. Use the +/- key, after entering the value, to change the sign of the value. The 6600 will beep on every key entry, and it will beep for a longer time period if extra invalid digits are entered. It is not necessary to enter the decimal point and the digit after the decimal point if that digit is “0”.
  • Page 33 If new target values need to be entered for Ps1 and Ps2 then these should be entered and left in the blinking state before pressing GO. This will enable the 6600 to start moving to the new targets on all outputs simultaneously, when the GO key is pressed.
  • Page 34 Note that while entering Rate values, it is NOT necessary to include the sign of the rate of change. The 6600 will automatically determine the direction of the rate of change. The displayed actual value will, however, indicate with a minus sign when the rate of change is negative.
  • Page 35 6000 feet/min for “altitude” units and 4.000 inHg/min for “engineering” units. If Ps1 is in Control mode and the units for Ps1 are “altitude” units then the 6600 will ramp towards the Ps1 target using the Rate target value in “altitude” units, i.e. 6000 feet/min. If Ps1 is in “engineering”...
  • Page 36 Pt output Ps2 output Ps1 output Units Rate Units Rate Units Rate knots 500 knots/min Feet 3000 feet/min Feet 3000 feet/min Mach 500 knots/min meters 3000 feet/min meters 3000 feet/min 500 knots/min inHg 4.000 inHg/min inHg 4.000 inHg/min kmph 500 knots/min mbar 4.000 inHg/min mbar...

  • Page 37: Units Selection

    Target Value Jog Each of the three target values can be jogged up or down in small increments by using the arrow keys. This is done to help the operator achieve a perfect reading on the instrument in the aircraft, by bumping the set-point in small increments. Another application of the “jog” feature is while testing the Mach/Over-speed warning on the aircraft, where the airspeed is incremented in small steps until the warning alarm sounds.
  • Page 38 Target: 0.064 3000 The unit selection will not become effective until the GO key is pressed. The 6600 will return to the old units if the CANCEL key is pressed. Note: It is important to note that the differential units of knots, Mach, mph, kmph, Qc inHg and Qc mbar always use Ps1 as the reference to determine the differential.
  • Page 39 20.0 10.000 29.054 The unit selection will not become effective until the GO key is pressed. The 6600 will return to the old units if the CANCEL key is pressed. . Note: The units change does not perform a conversion between the units of feet/minute or meters/minute to Ps1 inHg/min or Ps1 mbar/min.
  • Page 40 “inHg” have been selected. 3-output format Units: knots inHg Feet Actual: 101.2 28.849 1005 Target: 20.0 29.921 The unit selection will not become effective until the GO key is pressed. The 6600 will return...

  • Page 41: Mode Selection

    to the old units if the CANCEL key is pressed. Note: The last effective Ps2 units are retained through a power On/Off cycle. Important Note: If the Ps2 output is not being used then it is mandatory that the Ps2 output be in units of Differential inHg (Dfin) and the Ps2 target value be set to 0.000 Dfin.
  • Page 42 Ps2 output must be capped-off (closed) on the 6600. Note: When the 6600 is powered-ON, the Pt mode will always be in MEASURE. Ps1 Mode : The Ps1 mode can be selected both in 2-output and 3-output formats. The Ps1 output has three modes of operation.
  • Page 43 If the Ps2 output is not being used then it must be left in Control Mode while either Ps1 or Pt are in Control Mode. The Ps2 units must be “Dfin” and the Ps2 target value must be 0.000 Dfin. Note: When the 6600 is powered-ON, the Ps2 mode will always be in MEASURE.
  • Page 44 Following the Equalization process, only when the actual value on the Ps1 and Ps2 outputs are less than 2000 feet from Ground and the Pt output is less than 100 knots, the 6600 will automatically inject a small vacuum on the Ps1 and Ps2 outputs and a small pressure on the Pt output.

  • Page 45: Leak Screen

    Until the first minute has elapsed it shows “WAIT”. While in the Ps1 or Ps2 Screens, if the leak ever exceeds 2000 ft/min, the 6600 will automatically trip out of the Leak mode and revert back to Control mode. It will then display...
  • Page 46 Returning Ps1 to Control Mode. Please press “GO” While in the Pt Leak Screen, if the leak ever exceeds 50 knots/min, the 6600 will automatically trip out of the Leak mode and revert back to Control mode. It will then display a message as follows: Pt leak exceeds 50 knots/min.

  • Page 47: Self Test Screen

    SELF TEST SCREEN As part of the start up procedure, it is recommended that a Self Test be performed on the 6600. Before performing the Self Test you must follow the start up procedure explained in section 3.1. The Main Operating Screen must be displayed on the Remote unit. There should be no errors displayed on line 4 of the display.

  • Page 48: Function Select Screen

    Pump section OK Ps1, Ps2 control system OK Pt control system OK. Tests successful. After the tests have been completed successfully, press the CANCEL key to return to the Main Operating Screen. If any of the tests fail, then note the failure, turn OFF the unit and contact the factory. FUNCTION SELECT SCREEN There are 8 different functions that can be performed.

  • Page 49: Function 1: View Limits

    3.5.1 FUNCTION 1 : VIEW LIMITS The 6600 checks both the Target values and the Actual values to determine if they are within specific limits. These limits can be set by the user. To view these limits, you can press the Function Select key and then choose Function 1 (View Limits) by pressing “1”.
  • Page 50 If the target value exceeds any of the limits, an error is generated. The Actual values are also checked when the 6600 is in the “Control” mode. If any of these limits is exceeded by a pre-defined amount, an error will be generated and the 6600 will revert to “Measure” mode on all three outputs.

  • Page 51: Function 3: Set Knots Rate

    To modify a limit, select the limit by entering its serial number (1 to 6). The entry field will be blanked and a new value can be entered into it, followed by the “ENTER” key. The value becomes effective as soon as it is entered. In the screen shown below, “1”...

  • Page 52: Function 4: View And Execute Profiles

    This indicates that the current profile point is ready for execution and awaiting the “GO” key to be pressed. When the “GO” key is pressed, the 6600 will execute the profile point, i.e. it will change to Control mode and move towards the desired targets.

  • Page 53: Function 5: Setup Profiles

    3.5.5 FUNCTION 5: SETUP PROFILES This function is used to load profiles into the 6600 from a PC. A full explanation of how to load profiles into the 6600 is provided in Section 4.. The following screen will come up when Function 5 is selected.

  • Page 54: Function 8: Go To Ground

    Ps1 and Ps2 is set to the value “memorized” in the “Set Ground” function and the target value for Pt is set to the equivalent of 20 knots. The 6600 then ramps towards these targets. Once these targets have been achieved, you must put the 6600 into Measure mode on all three outputs, or turn the unit Off, before disconnecting the 6600 from the aircraft.

  • Page 55: Profiles

    4.1 WHAT IS A PROFILE. A profile is a set of up to 50 points that tell the 6600 what you would want it to do at each point. Each point consists of 10 parameters: 1) Pt units, 2) Pt mode, 3) Pt target value, 4) Ps1 units, 5) Ps1 mode, 6) Ps1 target value, 7) Rate target value, 8) Ps2 units, 9) Ps2 mode and 10) Ps2 target value.
  • Page 56 Ps2 target value In the sample profile, Row 3, which is the first point in the profile, tells the 6600 to go in Control mode to 100 knots on the Pt output, in Control mode to 0 feet at 6000 feet/min on the Ps1 output, and in Control mode to a value of 0.100 inHg differential (Ps2-Ps1) (Dfin) on...

  • Page 57: Creating A Profile

    12 characters. On Row 2, middle cell, replace “11” with a profile number between 1 and 15 that you would like this profile to be saved as, in the 6600. Do not change row 2 , 3 cell or 4 cell.

  • Page 58: Setting Up Hyperterminal

    Your profile has been created. 4.3 SETTING UP HYPERTERMINAL You download a profile into the 6600 using the Hyperterminal program. At first you need to setup Hyperterminal. You only need to do this once.

  • Page 59: Downloading A Profile

    The “6600” icon should appear. If it does not appear then you will need to repeat steps 1 and 2 above. 4.4 DOWNLOADING PROFILES Connect the one-to-one RS232 cable to the RS232 port on the 6600. You will need to remove the access panel for this.

  • Page 60: Executing A Profile

    4.5 EXECUTING A PROFILE On the 6600, select Function 4: Execute profile. On line 4 on the Main screen, a profile number is required to identify the profile. This number is x.y where x is the profile number and y is the point number within that profile.
  • Page 61 This will be the only indication that the profile has been completed. Each profile can have up to 50 points. There can be 12 profiles resident in the 6600 at any one time. New profiles can be loaded any number of times. They have to be numbered 1 to 12 and will overwrite existing resident profiles with the same profile number.

  • Page 62: Typical Use

    If Pt has a significant leak (more than 5 knots/min.) then first try and find the leak while the 6600 is in the Leak screen. If you lose all airspeed while searching for the leak, cancel out of the Leak screen and go back to Step 6 and continue to search for the leak. If you need to disconnect ANY hoses on the aircraft or between the 6600 and the aircraft, then a.
  • Page 63 Ground and go through the leak test process shown above, to find and fix the leak before proceeding further. It may be helpful to keep a copy of the procedure, shown in Figure 5.1, with the 6600 to assist the operator while using the 6600.
  • Page 64 Leave hose ends near the 6600 but DO NOT connect to 6600 yet. STEP 1: SELF TEST 1.1 Open at least one each of Pt, Ps1 and Ps2 ports on 6600 to ambient. Close all Vent valves. 1.2 Turn ON 6600 and run SELF TEST (NEXT SCREEN twice; GO).

  • Page 65: Calibration

    4.0 inHg abs. The 6600 has a drift of typically 0.005 %FS per year. Therefore it needs to be calibrated once a year to perform adequately as a calibration standard for air data equipment.

  • Page 66: Ps1 And Ps2 Calibration

    Ps1 and Ps2 CALIBRATION: Step 1. Connect the output of the Pressure Standard to the Ps1 and Ps2 ports on the 6600. The pressure and vacuum sources are to be connected to the control mechanism of the Pressure Standard. Step 2. Turn on the 6600 and allow it to warm up for about 30 minutes. Change the main screen to the 3-output format.

  • Page 67: Pt Calibration

    Pressure Standard. Step 2. Turn on the 6600 and allow it to warm up for about 30 minutes. The main screen may be either in the 2-output or 3-output format. Change the Pt unit to “PtinHg” (Ptin).
  • Page 68 1.000 inHg absolute. Allow the pressure to be stable at 1.000 inHg for 2 minutes and note the actual values for Pt on the 6600. This is the “As Found” reading for the Pt Vacuum Test Point (please see Fig. 6.1 below). It will indicate the zero drift since the previous calibration.
  • Page 69 Step 6. Ensure that the pressure generated by the Standard on the Static port is still 60.000 inHg. Select item ‘2’ using the keypad on the remote unit and then enter the value 60.000 in item 2. This indicates the Pt full scale point for the calibration. It is the “As Left” Full Scale Test Point for Pt in Fig.
  • Page 70 Model: 6600 Serial#: 77123 Full scale: Ps: 38 inHg Pt: 60 inHg Last Calibrated date: June 25, 2007 Next Calibration due: June 25, 2009 _______________________________________________________________________ CALIBRATION RESULTS Ps1 Output TEST POINT AS FOUND AS LEFT DEVIATION inHg inHg inHg 1. Vacuum 1.001...

  • Page 71: Maintenance

    SECTION 7 MAINTENANCE Scheduled maintenance of the 6600 includes calibration once a year. The calibration procedure is described in Section 6. Apart from this there are no other scheduled maintenance requirements.

  • Page 72: Communication Interface

    All commands to the 6600 are two letter commands. Some commands are used both to read and write data. Others are used only to read data back from the 6600. If a command is used to write data then it is followed by the equal sign followed by the data to be written. Each command must be terminated by a carriage return <CR>.
  • Page 73 Command Type Description Actual Pt value in current units Actual Rate value in current units Actual Ps1 value in current units Actual Ps2 value in current units Read current Pt target value PT=n Set Pt target value to n Read current Rate target value RT=n Set Rate target value to n Read current Ps1 target value...
  • Page 74 Command Type Description DU=n Set Ps2 units as follows: units Diff. inHg inHg Diff. mbar mbar Feet meters knots kmph Read current Pt mode PM=n Set Pt mode to Measure (1), Leak (2), Control (3) Read current Ps1 mode SM=n Set Ps1 mode to Measure (1), Leak (2), Control (3) Read current Ps2 mode DM=n...
  • Page 75 Command Type Description Command to execute current settings. Command to cancel current settings Read current IEEE address IE=n Set IEEE address to n Read current Height Correction HC=n Set Height Correction to n Read Pt vacuum calibration point C1=n Set Pt vacuum calibration point Read Pt full-scale calibration point C2=n Set Pt full-scale calibration point...

  • Page 76: Appendix A: Error Codes

    APPENDIX A ERROR CODES All errors are displayed on line 4 of the display when the 6600 is in the Main screen. An error must be acknowledged before any other key entries are accepted. The error may be acknowledged either by pressing the CANCEL or the CLR key.

  • Page 77: Appendix B: Specifications

    APPENDIX B SPECIFICATIONS Ps1 Output Pressure function range: 0.1 to 42 inHg resolution: 0.001 inHg accuracy: 0.002 inHg Altitude function range: -4000 ft. to 60,000 ft. resolution: 1 foot accuracy: 2 ft. @ 0 ft. 6 ft. @ 35,000 ft. 12 ft.

  • Page 78: Appendix C: Connector Pin-Outs

    APPENDIX C CONNECTOR PIN-OUTS...

  • Page 79: Appendix D: Repair And Return Policies

    If it is necessary to return the product for repair, or if the product needs to be sent in for routine calibration, a Return Material Authorization (RMA) number must be obtained from Laversab and must be noted on the shipping documents. The shipping documents must also include the following: a.

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