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Laversab 6300L User Manual

Automated pitot static tester
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MODEL 6300L Rev. E9
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: 9033 REV.E8
Date: December 13, 2019

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  • Page 1 MODEL 6300L Rev. E9 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: 9033 REV.E8 Date: December 13, 2019...
  • Page 2 Inc. warrants products of its own factory against defects of material or workmanship for a period of one year 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 onwards 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

    6300 Rev E5 User’s Manual 9033 Rev E6 07/27/2011 6300 Rev E6 User’s Manual 9033 Rev E7 07/21/2014 6300 Rev E7 User’s Manual 9033 Rev E8 07/21/2017 6300L Rev E8 User’s Manual 9033 Rev E9 12/13/2019 6300L Rev E9 User’s Manual...
  • Page 5 WARNING THE 6300 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

    TABLE OF CONTENTS Warranty ..........................i Copyright notice, disclaimer ....................ii Revision History ........................iii Warning ..........................iv Section 1: Introduction ....................1 Section 2: Controls and Connections ................ 2 2.1 Main Unit Top Panel ....................2 2.2 Remote Unit Top Panel ................... 10 Section 3: Understanding the 6300 ................
  • Page 7 TABLE OF CONTENTS (contd.) 6.2 General Notes ......................51 6.3 Ps Calibration ......................52 6.4 Pt Calibration ......................53 Section 7: Maintenance ....................57 Section 8: Communication Interface ................58 8.1 RS232 Serial Interface ....................58 8.2 IEEE-488 Interface ....................58 8.3 Communication Syntax ...................

  • Page 8: Introduction

    SECTION 1 INTRODUCTION Note: Pt = Pitot and Ps = Static The model 6300 is a high accuracy automated pressure controller, specifically designed for controlling air data parameters such as altitude, airspeed, Mach and climb. This instrument can also be used to control pressures in units of inHg and mbar. The 6300 is equipped with internal pressure and vacuum pumps.

  • Page 9: Controls And Connections

    SECTION 2 CONTROLS AND CONNECTIONS Note: Pt = Pitot and Ps = Static MAIN UNIT TOP PANEL The model 6300 top panel provides easy access to all the connections. Please refer to Figure 2.1. AC INPUT connector : This is a 3-pin male circular connector. A power cord is provided with the 6300. The circular connector end of the power cord needs to connected here.
  • Page 12 The remote cable is normally left connected to the 6300 at the “Remote” connector on the top panel and is wrapped around four cord posts on the lid of the 6300 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 RS232 interface connector: This connector is accessed by opening the “Interface Connectors” access panel as shown in Figure 2.2. The connector is a standard DB-9 female connector used for a serial RS232 interface. It can be connected directly to the “COM” port of a standard PC to allow communication.
  • Page 14 [11] Pitot Vent: In the event that the 6300 is in-operable due to a malfunction or due to loss of power, it is possible to vent the Pitot system manually. This is done using the metering valve labeled “Pitot Vent”. This valve is a positive shut-off valve. Opening this valve slowly will vent the Pitot output of the 6300 to ambient pressure.

  • Page 17: Remote Unit Top Panel

    REMOTE UNIT TOP PANEL Please refer to Figure 2.3 which shows the front panel of the Remote unit. The LCD display has 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 6300.
  • Page 18 TARGET VALUE KEYS : There are typically 3 parameters that the 6300 controls - Altitude, Climb and Airspeed. Each parameter has its own target value key. The Pt/AIRSPEED key is used to select Pt or Airspeed target value entry, the Ps RATE/CLIMB key is used to select Climb value entry, and the Ps/ALTITUDE key is used to select Ps or Altitude value entry.

  • Page 19: Understanding The 6300

    SECTION 3 UNDERSTANDING THE 6300 Note: Pt = Pitot and Ps= Static The 6300 is typically used to calibrate and check air data instruments like altimeters, climb indicators, and airspeed/ Mach indicators on an aircraft. It is also used to leak-check the Pitot/ Static system of an aircraft.
  • Page 20 Main Leak mode Leak Operating Screen Screen Function Select Function Select Screens (2) IEEE address View Limits Password Change Limits Change knots rate Execute profile (Return to Main) Setup Profile Height Correction Set Ground Go to Ground Encoder Next Screen Password Calibration Next...

  • Page 21: Main Operating Screen

    how to change all the parameters that are shown on the display. As we proceed through the explanations, it will become clearer as to how the 6300 actually operates. Interaction with the 6300 is done through several different screens that are displayed on the Remote unit.
  • Page 22 The two values (1005 and 0) that appear below it are in these units. Units: knots Feet/min Feet Actual: 101.2 3500 1005 Target: 20.0 3000 Parameter 3. Climb Units: Unit of measurement for displaying the rate of change of the Static output, or Climb.
  • Page 23 Parameter 6. Climb “Actual” value: This is the current rate of change of pressure measured at the Static output, displayed in the current units. In the sample screen shown below, the current rate of change of pressure at the Static output is 3500 feet/min.. This value is updated every 0.25 seconds.
  • Page 24 screen below, the 6300 has been commanded to achieve a climb of 3000 Feet/min. on the Static output. A dive would be indicated by a negative value. The Climb “Target” value is meaningful only when the Static output is in the “Control” mode. This is explained later in this section.
  • Page 25 Measure (“M”), Leak (“L”), or Control (“C”). In the Measure mode, the pressure at the Static output is simply being measured and displayed as the “Actual” value in the current Static units. The pressure is not being changed by the 6300. In this mode, the Static valve inside the 6300 that is used to change the pressure at the Static output is pneumatically isolated from the Static output.
  • Page 26 Static half Units: knots Feet/min Feet Actual: 101.2 3500 1005 Target: 20.0 3000 The Main operating screen will be used almost all the time during normal operation for commanding target values, viewing actual values, setting units and modes. Error Messages: The Main screen is also used to display error conditions as they occur.

  • Page 27: Target Value Entry

    3.2.2 TARGET VALUE ENTRY Note: Target values are maintained through a power OFF/ON cycle. Pitot target value : A Pt or airspeed target value can be entered using the Pt/AIRSPEED key. On pressing this key the target value field for Pt gets put into reverse video. The 6300 is now awaiting numeric entry from the operator.
  • Page 28 The value will continue to blink until the GO key is pressed. Only after the GO key is pressed, will the value become effective. If you change your mind and want to abort the new value entry, press CANCEL to exit the value entry mode.

  • Page 29: 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. To jog a value, select the value by pressing the appropriate target value key and then use the arrow keys.
  • Page 30 Engine pressure ratio (EPR). EPR is defined as the ratio of Pt to Ps and is unit-less. Any of these units can be selected by pressing the Pt units key. The choices will appear on line 4 of the display, four at a time. The cursor is placed under the first choice. The arrow keys can be used to move the cursor.

  • Page 31: Mode Selection

    key moves the cursor right. The sample screen below shows the different Ps units, with the cursor under “Feet”. Units: knots Feet/min Feet Actual: 101.2 3500 1005 Target: 20.0 3000 Ps units : Feet, Psin, mtrs, Psmb Select the desired units by moving the cursor to the unit of choice and then press ENTER. The new units will be displayed on the screen and will blink.
  • Page 32 Units: knots Feet/min Feet Actual: 101.2 3500 1005 Target: 20.0 3000 Pt mode : MEAS, LEAK, CTRL Move the cursor to the desired mode and then press ENTER. The selected mode is displayed on the screen and blinks until the GO key is pressed. The new mode will not become effective until the GO key is pressed.
  • Page 33 “LEAK”. Notice that the “L” on the right in line 2 is blinking. Units: knots Feet/min Feet Actual: 101.2 3500 1005 Target: 20.0 3000 Important note: When either the Pitot or Static Mode is changed to Control (C), BOTH Pitot and Static outputs are automatically changed to Control. During normal operation you want both Static and Pitot outputs connected to the aircraft and both of them achieving a specific target value.

  • Page 34: Leak Screen

    that the 6300 can automatically adjust the gain of it’s control mechanism. Due to this, the actual value will always increase in both altitude and in knots for about 5 seconds, regardless of the target value. Once this process is complete, the actual values will move towards the target values.
  • Page 35 shows “WAIT”. While in the Static Leak Screen, if the leak ever exceeds 2000 ft/min, the 6300 will automatically trip out of the Leak mode and revert back to Control mode. It will then display a message as follows: Static leak exceeds 2000 ft/min. Returning STATIC to Control Mode.

  • Page 36: Timed-Leak Screen

    3.3.1 TIMED-LEAK SCREEN When both Pitot and Static outputs are simultaneously put into Leak mode, then the leak screen displays the leak values in a timed-leak format as shown below. The sample screen shown below assumes the following: a. Units are set to knots and feet b.
  • Page 37 To accept the setting of the 1 leak-timer and move the arrow to the 2 leak-timer, press ENTER. The screen will appear as below. Change the 2 leak-timer value if desired, using the Arrow keys. The leak-timer value must be changed before the elapsed time reaches 58 seconds.
  • Page 38 updated and appear as shown below. The second line shows that at the end of 1 minute the knots value leaked to 99.5 knots and the accumulated leak in 1 minute was -0.5 knots, since the knots value at the start of the leak check was 100 knots. The second line also shows that at the end of 1 minute, the altitude was at 14965 feet and the accumulated leak in 1 minute was - 35 feet, since the altitude was at 15000 feet at the start of the leak check.

  • Page 39: Self Test Screen

    SELF TEST SCREEN As part of the start up procedure, it is recommended that a Self Test be performed on the 6300. 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 40 After the pump section test has passed successfully, the screen is cleared and the status of the remaining tests is displayed as shown below. Pump section OK Ps 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.

  • Page 41: Function 0: Ieee Address

    Select function ( UP ARROW for functions 1 to 3 ) Execute profile Set profiles Height Correction Set “Ground” Go to “Ground” Encoder Once in the correct screen, select a number to go to the desired function. An explanation of each of the functions is given below.

  • Page 42: Function 2: Set Limits

    3.5.2 FUNCTION 2: SET LIMITS To set the limits, press 2 on the Function Select screen. Access to the “Set Limits” screen is protected by means of a password. Enter the password followed by the ENTER key on the screen shown below. SET LIMITS Please enter password : The correct password will take you into the “Set Limits”...

  • Page 43: Function 3: Set Knots Rate

    typical setting for this limit is 1.0. 4. Max. Feet : This limit is usually set to the maximum altitude that the aircraft instruments can tolerate. The maximum value is 80,000 and the minimum is 0. A typical setting for this limit is 55,000. 5.

  • Page 44: Function 4: View And Execute Profiles

    The knots rate is the rate at which the Actual airspeed value is ramped towards the Target airspeed value. A typical knots rate value of 500.0 is ideal for most operations. Enter the desired value followed by the ENTER key. This will take you into the following screen which shows that a new value of 300.0 was entered.

  • Page 45: Function 5: Setup Profiles

    If you want only to view the profile without executing it, then DO NOT press the “GO” key. Simply press the “ENTER” key to go to the next point in the profile. Each time you press the “ENTER” key, the next profile point will be displayed. When you press the “ENTER” key after the last point in the profile, the Main screen will revert back to its original setting prior to invoking Function 4.

  • Page 46: Function 8: Go To Ground

    recommended that this function be invoked. The Pitot and Static ports must still be open to ambient when using this function. When the “GO” key is pressed in the screen shown below, the 6300 will “memorize” the ambient pressure it measures, as the “Ground” pressure. This will be used later when the “Go To Ground”...
  • Page 47 Static units must be Feet Press GO to continue Pressing “GO” will return you to the Main Screen. If Static units are in “Feet”, then the following screen will be shown. A1 A2 A4 B1 B2 B4 C1 C2 C4 D4 CODE: FL.

  • Page 48: Profiles

    SECTION 4 PROFILES Profiles are created in Microsoft Excel and downloaded into the 6300 through the COM1 port on your PC using the Hyperterminal program that is normally available on all PC’s. 4.1 WHAT IS A PROFILE. A profile is a set of up to 50 points that tell the 6300 what you would want it to do at each point.
  • Page 49 Row 2 middle cell shows the number of the profile. This profile has a number 3. This tells the 6300 that this profile is to be loaded in as profile number 3. When profile 3 is executed on the 6300, this “Sample” profile will be executed. This number can be any number between 1 and 20.

  • Page 50: Creating A Profile

    Row 13 (point 11) takes Pitot down to 20 knots and ramps Static back to “Ground” at 6000 ft/min. Row 14 (point 12) puts both Pitot and Static into Measure mode. 4.2 CREATING A PROFILE Start with opening the “Profile Template.xls” file. Do not change anything on Row 1.

  • Page 51: Setting Up Hyperterminal

    where the Static port is put into Leak mode at 18,000 feet. Caution: If you are using Mach on the Pitot side, make sure that while the Static side is moving from a low altitude to a higher altitude, the target Mach number must be kept low (about 0.200).

  • Page 52: Downloading A Profile

    Properties”. Setup the Port Settings as follows: Bits per second: 9600 Data Bits: Parity: None Stop Bits: Flow control: None Select “Apply”. Then select “OK”. This will take you into the “6300 Hyperterminal” window. Select “File”. Select “Properties”. A new dialog box “6300 Properties” appears. Select the “Settings”...

  • Page 53: Executing A Profile

    After the profile has completed downloading, the last section should say “PASS”. If it does not then the profile did not download correctly. If no characters are echoed when you open the .txt file to download then you probably have a communication problem.
  • Page 54 Press ENTER to invoke the next profile point. All parameters of the point will be shown on the screen and the point number will flash on line 4. ENTER allows the user to view an entire profile without executing any point. It also allows the user to skip certain points if so desired.

  • Page 55: Typical Use

    SECTION 5 TYPICAL USE This section assumes that the user has read Section 3 and understood the functioning of the 6300. Please do not follow the sequence shown below without first reading Section 3. The following steps show a typical use of the 6300 for checking aircraft instruments. 1.
  • Page 56 the leak while the 6300 is in the Leak screen. If you lose significant altitude while searching for the leak, cancel out of the Leak screen and go back to Step 11 and continue to search for the leak. If you need to disconnect ANY hoses on the aircraft or between the 6300 and the aircraft, then a.
  • Page 57 6300 : TYPICAL USE STEP 0: PREP AIRCRAFT Connect adapters and hoses to the aircraft, tape-up all unused ports on the aircraft. Leave hose ends near the 6300 but DO NOT connect to 6300 yet. Set the BARO adjust on the aircraft to 29.92 or 1013 or Standard. STEP 1: SELF TEST Turn ON 6300 and check / adjust leak timers in timed-leak screen (put both Pitot and Static in Leak).

  • Page 58: Calibration

    SECTION 6 CALIBRATION EQUIPMENT: This calibration procedure requires the following equipment: 1. Vacuum pump. 2. Pressure supply of clean, dry air at 35 psia 3. Pressure standard having accuracy of at least 0.002 inHg up to 32 inHg and an accuracy of at least 0.003 inHg from 32 inHg to 50 inHg.

  • Page 59: Ps Calibration

    Ps (Static) CALIBRATION: Step 1. Connect the output of the Pressure Standard to the Static port on the 6300. The pressure and vacuum sources are to be connected to the Pressure Standard and it is assumed that the Pressure Standard has a suitable control mechanism which can allow the user to control the pressure at its output.

  • Page 60: Pt Calibration

    Step 6. Ensure that the pressure generated by the Standard on the Static port is still 38.000 inHg. Select item ‘4’ using the keypad on the remote unit and then enter the value 38.000 in item 4. This indicates the full scale point for the calibration. If you make an error while entering data, press “CLR”.
  • Page 61 Step 3. After the warm-up period is over, using the Pressure Standard, generate a pressure of 1.000 inHg absolute. Allow the pressure to be stable at 1.000 inHg for 2 minutes and take the reading on the Pitot side (PtinHg) of the 6300. This is the first of your “Before” calibration adjustment reading.
  • Page 62 Note: If your Standard cannot generate 1.000 inHg abs., the lowest possible pressure below 4.000 inHg abs. will be acceptable. Enter the value of the generated pressure. Step 8. On the keypad of the remote unit, press “PREV SCREEN”. The display will return to the Main Screen.
  • Page 63 Model: 6300 Rev.E7 Serial#: 74678 Full scale: Ps: 38 inHg Pt: 50 inHg Last Calibrated date: 10/10/10 _______________________________________________________________________ CALIBRATION RESULTS STATIC PRESSURE (Ps): TEST POINT AS FOUND AS LEFT DEVIATION inHg inHg inHg 1. Vacuum 1.001 1.000 0.001 2. Fullscale 38.002 38.000 0.002...

  • Page 64: Maintenance

    SECTION 7 MAINTENANCE Scheduled maintenance of the 6300 includes calibration once a year. The calibration procedure is described in Section 6. Apart from this there are no other scheduled maintenance requirements.

  • Page 65: Communication Interface

    SECTION 8 COMMUNICATION INTERFACE The model 6300 is capable of communicating with a remotely located computer via the RS232 serial interface. Using this interface it is possible to perform all functions that are available on the front panel. 8.1 RS232 SERIAL INTERFACE The serial interface is a three wire interface using the signals RX, TX and GND.

  • Page 66: Communication Syntax

    For the 6300 to input a command, it must first be addressed to Listen. The command that follows must be terminated with a Line Feed <LF>. To get data from the 6300 the unit must be addressed to Talk. Prior to asking the 6300 to Talk, the data to be sent by the 6300 must be specified through a command.
  • Page 67 Command Type Description PU=n Read/ Set Pt units as per following: units knots mach Pt inHg Qc inHg Pt mb Qc mb kmph SU=n Read/ set Ps units as follows: units Feet Ps inHg meters Ps mb PM=n Read/Set Pt mode to Measure (1), Leak (2), control (3) SM=n Read/set Ps mode to Measure (1), Leak (2), Control (3) Read current error ;...
  • Page 68 Command Type Description Command to cancel current settings IE=n Read/set IEEE address C1=n Read/set Pt vacuum calibration point C2=n Read/set Pt fullscale calibration point C3=n Read/set Ps vacuum cal. point C4=n Read/set Ps fullscale calibration point Activate new calibration points after new values have been entered for either C1 and C2, or C3 and C4.

  • Page 69: Appendix A: Error Codes

    APPENDIX A ERROR CODES All errors are displayed on line 4 of the display when the 6300 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. ERROR CODES DESCRIPTION Pressure exceeded 110 %FS on Pt output...

  • Page 70: Appendix B: Specifications

    APPENDIX B SPECIFICATIONS Static 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 71: Appendix C: Connector Pin-Outs

    APPENDIX C CONNECTOR PIN-OUTS...

  • Page 72: Appendix D: Repair And Return Policies

    SUGAR LAND TX, 77478 U.S.A. Note: Please pack the 6300 in a carton prior to shipping. Do not ship without proper packing. Laversab, Inc. will not be liable for damage to the 6300 if it is shipped without proper packing.

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