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MODEL 6500 Rev. E USER`S MANUAL

1. 31 3 5 4 Function 4 View and Execute Profiles eere 31 0 59 Fu nction 5 Setup Profiles atico e eee 32 3 5 6 Function 6 Height Correction iios utet ro 32 3 5 7 Function 7 Set Ground 33 3 5 8 Function 8 Go To Ground 33 Section 4 Profiles 2ususuutuinudsed iis eR RR div n 34 A1 Whatisa Profile ausu 34 42 Credunea Probe aede tite aet d I AERA RRR RRR 36 1 81 1 18 5121 10 1 0 9 5 uywa uyata 37 Zr Downloading cad rolg 38 45 Executing Profle uu pha pun Sha SSS Qha 39 Section Use anaq d que eH eet ula u 41 Section 6 Calibration usa an un un uns enne nemen tenet ntneest enses ese et tese 42 GUIDE a NN NP E 42 6 2 General Notes 42 6 3 Ps Calibration occ ceesecesscccssccccsscccescccsscccesscecescecsssesessseceseecssseeesssecesseecsssesenses 43 6 4 Pt Calibration u au ena i e aere asa 44 TABLE OF CONTENTS contd Section 7 1 425119 8 10 19 5 86 7 57 7 es gi 48 Section 8 Commanication Mier
2. Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 7 Pitot Target value This is the value that you command the 6500 to achieve on the Pitot output Pt test port In the sample screen below the 6500 has been commanded to achieve a pressure of 20 0 knots on the Pitot output The Pitot Target value is meaningful only when the Pitot output is in the Control mode This is explained later in this section How to change the Pitot Target value is explained in section 3 2 2 Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter8 Static Target value This is the value that you command the 6500 to achieve on the Static output Ps test port In the sample screen below the 6500 has been commanded to achieve a pressure of 0 Feet on the Static output The Static Target value is meaningful only when the Static output is in the Control mode This is explained later in this section How to change the Static Target value is explained in section 3 2 2 Units knots Feet min Feet Actual M 101 2 3500 1005 Target 20 0 3000 0 Parameter 9 Climb Target value This is the value that you command the 6500 to achieve as the rate of change of pressure climb dive on the Static output Ps test port In 14 the sample screen below the 6500 has been commanded to achieve a climb of 3000 Feet min on the Static output A dive would b
3. set Ps units as follows n units 1 Feet 2 Ps inHg 3 meters 4 Ps mb Read Set Pt mode to Measure 1 Leak 2 control 3 Read set Ps mode to Measure 1 Leak 2 Control 3 Read current error 0 if no error 50 Command L1 n L2 n L3 n L4 n L5 n L6 n CN 1 2 C3 n C4 n CC SF 0 SF 1 SG GG Type R W R W R W R W R W R W R W R W R W R W R W R W R W 5 Description Read set max knots limit Read set min knots limit Read set max mach Read set max altitude Read set min altitude Read set max altitude rate Read set knots rate Read set current profile point Command to execute current settings Command to cancel current settings Read set IEEE address Read set Pt vacuum calibration point Read set Pt fullscale calibration point Read set Ps vacuum cal point Read set Ps fullscale calibration point Activate new calibration points after new values have is executed Read the status of the Self Test last performed Start the Self Test Set Ground Go To Ground 51 APPENDIX A ERROR CODES errors are displayed on line 4 of the display when the 6500 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 1 Pressure exceeded 110 FS on Pt output 2 Pressure exceeded 110 FS
4. Press GO to GoTo Ground or press CANCEL to exit When GO is pressed the 6500 shows the Main screen This screen is shown below with the new targets of 100 knots and 275 feet This assumes that the Ground pressure was 275 feet when the Set Ground function was invoked Units knots Feet min Feet Actual C 101 2 3500 1005 C Target 20 0 5000 275 33 SECTION 4 PROFILES Profiles are created in Microsoft Excel and downloaded into the 6500 through the 1 port on your PC using the Hyperterminal program that is normally available on all PC s 41 WHAT IS A PROFILE A profile is a set of up to 50 points that tell the 6500 what you would want it to do at each point Each point consists of 7 parameters 1 Pitot units 2 Pitot mode 3 Pitot target value 4 Static units 5 Static mode 6 Static target value and 7 Static rate Climb target value These 7 parameters are defined by you in the Excel program A total of 20 such profiles can reside in the 6500 at any time Each profile is identified by a number between 1 to 20 and also a name which can have up to 12 characters The profile number and the name are also part of the profile that is created in Excel A typical profile named Sample is shown below as it would appear in Excel A B C D E F G 1 Profile 2 Sample 3 0 3 knots Control 100 0 Feet Control 0 6000 4
5. AVERSAB MODEL 6500 Rev E USER S MANUAL LAVERSAB 505 GILLINGHAM LANE SUGAR LAND TX 77478 281 325 8300 FAX 281 325 8399 Email service laversab com Document Number 9014 REV E Date June 6 2005 WARRANTY Laversab Inc warrants its products to conform to or exceed the specifications as set forth in its catalogs in use at the time of sale and reserves the right at its own discretion without notice and without making similar changes in articles previously manufactured to make changes in materials designs finish or specifications Laversab 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 will not be responsible for transportation charges consequential or incidental damages No liability is assumed by Laversab for damages that are caused by misuse or abuse of the product The warranty of Laversab Inc is not made for products manufactured by others which are illustrated and described in Laversab catalogs or incorporated in Laversab products in essentially the same form as supplied by the original manufacturer Warranties of the original manufacturers supplant the warranty of Laversab Inc but in applicable instances the latter a
6. Simply introducing the controlling section into the pneumatic system connected to the output will cause a surge in pressure or vacuum at the output To prevent such a surge the 6500 measures the pressure at the output shuts off the output from the internal 6500 pneumatics and then controls the pressure within the internal control mechanism to match the pressure at the output Once this is done the 6500 controlling section is connected to the output This process is termed as Equalization While the 6500 is undergoing this process the term EQZN is displayed on the main screen in place of the Actual value The whole process usually takes about 15 seconds or less to complete During the EQZN process the Main Operating screen will appear as shown below Units knots Feet min Feet Actual C EQZN EQZN EQZN C Target 20 0 3000 0 Once the Equalization process is complete the Actual values appear on the Main Screen Following the Equalization process only when the actual value on the Static output is less than 2000 feet from Ground and the Pitot output is less than 150 knots the 6500 will automatically inject a small vacuum on the Static output and a small pressure on the Pitot output This is done to determine the volume of the Pitot and Static system of the UUT so that the 6500 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 abou
7. 1 000 inHg for 2 minutes and take the reading on the Pt port PtinHg of the 6500 This is the first of your Before calibration adjustment reading It will indicate the zero drift since the previous calibration Note If your Standard cannot generate 1 000 inHg abs the lowest possible pressure below 4 000 inHg abs will be acceptable Step 4 Generate a pressure of 100 000 inHg absolute allow the pressure to stabilize for 2 minutes and take the reading on the Pt port PtinHg of the 6500 This is the second of your Before calibration adjustment reading It will indicate the zero plus slope drift since the previous calibration Leave the pressure at 100 000 inHg while you perform the next step Note If your Standard cannot generate 100 000 inHg abs pressure between 80 000 and 100 000 inHg abs will be acceptable If you do not wish to make a calibration adjustment but just want to verify the accuracy of the 6500 please skip to Step 10 Step 5 To make a calibration adjustment for the Pt port on the 6500 move to the the CALIBRATION screen using the NEXT SCREEN key and enter the password The calibration screen appears as follows CALIBRATION PtinHg PsinHg Vacuum 1 3 Bos 3 2 4 Step 6 Ensure that the pressure generated by the Standard on the Pt port is still 100 000 inHg Select item 2 using the keypad on the remote unit and then enter the value 100 000 in item 2 This indicates the full scale point for the ca
8. 17 5 x 15 5 x 7 0 25 155 7 x8 x 2 11b 0 to 50 C 25 to 75 C 5 to 95 non condensing 53 APPENDIX C REPAIR AND RETURN POLICIES If it is determined that the product is defective please call Laversab customer service department 281 325 8300 or fax 281 325 8399 or e mail service laversab com for further assistance Before shipping any equipment to Laversab for repair please call the customer service department at 281 325 8300 or fax 281 325 8399 or e mail to service laversab com Please include a description of the problem that has been identified when returning defective equipment Ship equipment to LAVERSAB INC 505 GILLINGHAM LANE SUGAR LAND TX 77478 U S A 54
9. Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Split Screen The Main operating screen displays all 11 parameters conveniently The screen can actually be divided into 2 halves the left half shows all the 4 Pitot parameters whereas the right half shows all the 7 Static parameters The sample screens below shows this separation Pitot half Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 16 Static half Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 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 The errors are displayed on the last 4 line of the display as shown below Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Error 5 Pitot target exceeds limits Profile Execution When a profile is being executed the 4 line of the display will indicate the profile number and the point in the profile A sample screen is shown below where point number 12 of profile number 3 is being executed Notice that this sample screen shows some of the values to be different from our previous sample screens The essence of using profiles is that all the 7 parameters can be changed simply by moving to the
10. abs will be acceptable If you do not wish to make a calibration adjustment but just want to verify the accuracy of the 6500 please skip to Step 10 Step 5 To make a calibration adjustment for the Ps port on the 6500 move to the the CALIBRATION screen using the NEXT SCREEN key and enter the password The calibration screen appears as follows CALIBRATION PtinHg PsinHg Vacuum 1 3 FS 2 4 43 Step 6 Ensure that the pressure generated by the Standard on the Ps 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 Do not press CANCEL You may re enter the value any number of times Note If your Standard cannot generate 38 000 inHg abs any pressure between 32 000 and 38 000 inHg abs will be acceptable Enter the value of the generated pressure Step 7 Now generate a pressure of 1 000 inHg with the Standard Allow the pressure to stabilize for 2 minutes select item 3 using the keypad on the remote unit and then enter the value 1 000 in item 3 This indicates the vacuum point for the calibration If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Note If your Standard cannot generate 1 000 inHg abs the lowest possible pressure below 4 000 inHg abs will be ac
11. around to CTRL The sample screen below shows the three mode choices displayed on line 4 of the display with the cursor under MEAS Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Psmode 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 The sample screen below shows the selected Static mode as LEAK Notice that the L on the right in line 2 is blinking Units knots Feet min Feet Actual M 101 2 3500 1005 Target 20 0 3000 0 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 UUT or PLUGGED if not connected to a UUT and both of them achieving a specific target value Leaving one output in Measure or Leak and the other output in Control should be done only during a Leak check 23 The MEASURE to CONTROL transition When either a Pitot or Static output is changed from Measure or Leak to Control mode a sequence of events takes place that needs explaining Since the controlling portion of the 6500 is isolated from the output during Measure or Leak modes it will usually be at a pressure quite different from that at the output
12. cursor to the unit of choice and then press ENTER The new units will be displayed on the screen and will blink Also the actual and target values will get converted into the new units and the target value will blink This is shown in the sample screen below where the units of Mach have been selected Units Mach Feet min Feet Actual M 0 136 3500 1005 M Target 0 064 3000 0 The unit selection will not become effective until the GO key is pressed The 6500 will return to the old units if the CANCEL key is pressed Static Units There are four Ps units to choose from Feet Ps inHg Psin meters and mbar Psmb When a particular unit is selected the units for climb automatically changes to selected units minute Any of these units can be selected by pressing the Ps Units key Line 4 of the display will show all four units with the cursor under Feet The arrow keys be used to move the cursor The UP ARROW key moves the cursor left the DOWN ARROW 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 M Target 20 0 3000 0 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 Also the actual and target values both for Static and Climb will get converted int
13. 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 Italso allows the user to skip certain points if so desired 4 Only the ARROW keys are effective during profile execution to allow the user to jog the profile s target values A new target value cannot be entered while a profile is executing The existing target value may be jogged up or down in fixed increments as described in section 3 2 2 5 No other Keys are effective Changing units or modes or target values will require aborting the profile 6 When a profile goes into leak mode the Leak Screen will be displayed The profile will stay in this screen until the user enters CANCEL to exit the leak screen The 6500 returns to the main screen where the user must press ENTER to invoke the next profile point 7 When the last point in the profile is executed pressing ENTER will cause line 4 of the display to be cleared This will be the only indication that the profile has been completed 8 Each profile can have up to 50 points There can be 20 profiles resident in the 6500 at any one time 9 New profiles be loaded any number of times They have to be numbered 1 to 20 and will overwrite existing resident profiles with the same profile number 10 Errors during profile execution will cause the profile to abort It can be restart
14. leaks less than 20 ft min For the Pitot leak check this number is updated every 3 seconds f Per min leak rate This is the amount the output has leaked in the past full minute It is updated at the end of every minute on the timer Until the first minute has elapsed it shows WAIT p While in the Static Leak Screen if the leak ever exceeds 2000 ft min the 6500 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 Please press GO 25 While in the Pitot Leak Screen if the leak ever exceeds 50 knots min the 6500 will automatically trip out of the Leak mode and revert back to Control mode It will then display a message as follows Pitot leak exceeds 50 knots min Returning PITOT to Control Mode Please press GO When either of these warning messages is displayed press GO which will bring up the Main Operating Screen At this point it is recommended to go back to GROUND and to Measure mode on both outputs ad fix the leak before proceeding further It is important that each output be put into the Leak mode independently That is when the Pitot port of the UUT needs to be checked for leaks only the Pitot output should be in Leak mode keeping the Static output in Control mode When the Static port of the UUT needs to be checked for leaks only the Static output should
15. next point in the profile eliminating the need to perform a lot of data entry Units knots Feet min Feet Actual C 101 2 3500 1005 C Target 200 0 6000 5000 Executing Profile 3 12 Lear 55 ADC For more information on profiles please refer to Section 4 17 3 2 2 TARGET VALUE ENTRY 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 6500 is now awaiting numeric entry from the operator While this new value is being entered the old target value is still effective and does not in any way affect the Pitot output After the Pt AIRSPEED Key is pressed the display will appear as shown below Units knots Feet min Feet Actual M 101 2 3500 1005 Target 20 3000 0 Use the numeric keys to enter the value Use the key to change the sign of the value The 6500 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 That is if you want to enter the number 200 0 you may enter just 200 and leave out the And the 0 After entering 200 the display will appear as shown below Units knots Feet min Feet Actual M 101 2 3500 1005 Target Wi 3000 0 If a mistake is made during entry it can only be correcte
16. number within that profile Since a particular point can be specified the user can start a profile at any point not necessarily at point 1 x can have a value between 1 and 20 and y can have a value between 1 and 50 When a profile number is entered using the ENTER key the name of the profile will appear to the right of the profile number and the parameters of the particular point in that profile will be displayed on the screen in their respective locations It will appear as if the user had entered all those parameters from the front panel The value x y will flash on line 4 of the display indicating that the point is ready to be executed To execute the point press GO To view the next point in the profile press ENTER As long as the profile point number is flashing it will not be executed Some of the rules to follow and points to observe while executing profiles are 1 Press CANCEL to abort a profile If CANCEL is pressed while the system is moving towards a target value it will continue to do so Aborting a profile simply allows the user the freedom to perform all functions possible from the front panel with no restrictions Operating within a profile restricts the user to follow the profile 2 Press GO to execute the flashing profile point Once the 6500 achieves the state it has been commanded to go to it will stay there until the next profile point is invoked using ENTER and executed using GO 39 3 Press ENTER to
17. on Ps output 3 Pt target value exceeds Oc limits 4 Pt target value exceeds mach limit 5 Ps rate target exceeds climb limit 6 Ps target exceeds altitude limits 7 Pt actual value exceeds Qc limit 8 Pt actual value exceeds Mach limit 9 Ps actual value exceeds altitude limits 10 Unused 11 Profile error 12 Ps EQZN transducer error 13 Pt EQZN transducer error 14 Internal use only 52 APPENDIX B SPECIFICATIONS 5 25 Static Output Pressure function range 0 3 to 42 inHg resolution 0 001 inHg accuracy 0 002 inHg Altitude function range 4000 ft to 100 000 ft resolution 1 foot accuracy 2 ft 0 ft Climb function range resolution accuracy Pitot Output Pressure function range resolution accuracy Airspeed function range resolution accuracy Mach function range resolution accuracy EPR function range resolution accuracy Power requirement 6 ft 35 000 ft 12 ft 50 000 ft 50 ft 80 000 ft 100 ft min to 25 000 ft min 1 ft min 1 of rate of climb 0 3 to 100 inHg 0 001 inHg 0 005 inHg 0 to 850 knots 0 1 knots 2 4 knots 20 knots 1 0 knots 50 knots lt 0 5 knots above 100 knots 0 0 to 3 0 Mach 0 001 Mach 0 001 above 0 2 Mach 0 to 199 0 001 0 002 typ 90 260 VAC 47 440 Hz 80 VA Interfaces RS232 Dimensions amp weights Main unit Remote unit Environmental specs Operating temp Storage temp Humidity
18. want to select functions 4 through 8 press the Down Arrow key on the keypad to move to the screen shown below Select function 4 Execute profile 6 Height Correction 8 Goto Ground UP ARROW for functions 1 to 3 5 Set profiles 7 Set Ground Once in the correct screen select a number to go to the desired function An explanation of each of the functions is given below 3 5 1 FUNCTION 1 VIEW LIMITS The 6500 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 The VIEW LIMITS screen appears as shown below 28 VIEW LIMITS 1 max knots 500 0 4 max feet 50000 2 min knots 200 0 5 min feet 2000 3 max mach 1 000 6 max ft min 6000 To exit from this screen press CANCEL For an explanation of the limits please refer to the Set Limits function 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 screen shown below SET LIMITS 1 max knots 500 0 4 max
19. 2 3 Start with opening the Profile Template xls file Do not change anything on Row 1 On Row 2 left most cell replace Template with the name of your profile Limit is 12 characters On Row 2 middle cell replace 11 with a profile number between 1 and 20 that you would like this profile to be saved as in the 6500 Do not change row 2 right most cell In rows 3 through 50 change the cells as per the points you want to generate in your test For entering Units and Modes use the drop down menu selections for those cells If you do not use all the rows for your profile select the cells in the unused rows up to row 50 and delete them shifting the cells up DO NOT delete rows 51 52 and 53 Format the cells with values so that they show the correct number of digits after the decimal point For instance knots values have 1 digit after the decimal Mach values have 3 digits after the decimal Format the cell just like a regular Excel cell with a number The following table lists the digits after the decimal for the various units The Static rate Feet min etc value has the same number of digits after decimal as the Static value Pitot units Digits after Static units Digits after decimal decimal Knots 1 Feet 0 Mach 3 Ps inHg 3 EPR 3 Meters 1 Pt inHg 3 Ps mb 2 Qc inHg 3 Pt mb 2 Qc mb 2 Mph 1 Kmph 1 Check the values units and modes in your profile to ensure they ar
20. Caution When testing an airspeed indicator make sure the Ps port is connected to the Static Reference port on the airspeed indicator 8 GO TO GROUND Function 8 This puts both Ps and Pt ports into CONTROL mode 9 Step through the points at which you need to check the UUT If you have a profile set up then execute the profile at this point 10 You may go into LEAK mode to perform a leak check on the UUT but DO NOT go into MEASURE mode since it will not protect you against large leaks in the UUT 11 When all the test points have been checked GO TO GROUND 12 Put both Ps and Pt ports into MEASURE mode 13 Disconnect the UUT If you lose power while performing a test make sure you disconnect the pressure and vacuum supplies During the test if the Control is erratic go back to Ground put both ports in MEASURE mode check for excessive leaks in the connections to the UUT then proceed from Step 8 41 SECTION 6 CALIBRATION 6 1 EQUIPMENT This calibration procedure requires the following equipment 1 Vacuum pump 2 Pressure supply of clean dry air at 50 psia 3 Pressure standard having accuracy of at least 0 002 inHg up to 32 inHg and an accuracy of at least 0 005 inHg from 32 inHg to 100 inHg 62 GENERAL NOTES The transducers inside the 6500 are sensitive to the change in density of the medium being used The unit must be calibrated with Dry Air only Calibrating with Nitrogen or any medium other than Dry Air w
21. Ce den 49 8 1 RS232 Serial Interface ient 49 8 2 Communicator iterii iterii 49 Appendix A Error Codes a tete renis 52 Appendix B Specifications 53 Appendix C Repair and Return Policies eere 54 vi SECTION 1 INTRODUCTION Note Pt Pitot and Ps Static The model 6500 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 6500 requires external vacuum and pressure supplies in order for it to perform the control function The 6500 has two high accuracy transducers that measure pressure in the range of 0 to 38 inHg absolute on the Ps static output and 0 to 100 inHg absolute on the Pt pitot output These transducers are designed to accurately measure the pressure of dry air over an ambient temperature range of 0 C to 50 C The 6500 is fully RVSM compliant The 6500 allows the user to control altitude in feet or meters climb in feet per minute or meters per minute airspeed in knots mach mph and kmph It also allows the user to control EPR on the pitot output The model 6500 features programmable limits on altitude airspeed mach number
22. E knots min min 50 max 500 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 Press GO to return to the Main screen Thank you Press GO to continue NEW RATE 300 0 knots min 3 5 4 FUNCTION 4 VIEW amp EXECUTE PROFILES To execute a profile press Function Select and then press 4 This will bring you back into the Main Screen as shown below You will need to enter the profile number that you want to execute A full explanation of profiles is given in Section 4 x Unils knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 ENTER PROFILE NUMBER BEN Assuming you enter a profile number of 2 1 followed by the ENTER key the first point of profile 2 will be displayed on the screen Also the name of the profile is shown here This is shown in the screen below The name of profile 2 is CJ1 RVSM In this profile note that both Modes changed to C and all three target values changed These parameters were programmed as the first point of profile 2 You will also notice that the number 2 1 is flashing This indicates that the current profile point is ready for execution and awaiting the 31 GO key to be
23. Feet Actual M 101 2 3500 1005 Target 20 0 3000 0 Pi 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 The sample screen below shows the selected Pitot mode as LEAK Notice that the L on the left in line 2 is blinking Units knots Feet min Feet Actual L 101 2 3500 1005 Target 20 0 3000 0 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 22 you want both Static and Pitot outputs connected to the UUT or PLUGGED if not connected to a UUT and both of them achieving a specific target value Leaving one output in Measure or Leak and the other output in Control should be done only during a Leak check Static Mode The Static output has three modes of operation The three mode are Measure M Leak L and Control C The power up mode defaults to Measure M To change the mode press the Ps Mode key The three modes will be displayed on line 4 of the display with the cursor under the Measure mode The UP ARROW key can be used for moving the cursor left and the DOWN ARROW key can be used to move the cursor right The cursor wraps around the selections that is moving the cursor left past MEAS wraps it
24. SOURCE TABLE OF CONTENTS WATAY c i ii 12 1 116 1 1 6 6 Warmis aR u u u u ss iv Section 1 IrittGd ctiott 22 1 o decid eal det te dee edt 1 Section 2 Controls and Connections 2 000000000 0000000 2 2 L brontPariel um 222 LR LX 2 22 Rear Panelrk sed ea dde 7 Section 3 10 DIT LARD UP 10 23 2 Mam Operating Sree D QU eet 12 3 2 1 Displayed Parameters a enim mares 12 3 2 2 Target Value Entry 5 NO NF NE IIR UOURE 18 3 2 3 Units Selection 20 3 2 4 Mode Selection teens 22 oo Leak Screen tee etr rete eue der ees 24 Test OCreen uuruuu tee te dee beh e 022033 26 3 5 Function Select Screen 2 2 0000000 0 000 101 000 tense sense n tees 28 3 5 1 Function 1 View Limits U J 28 3 5 2 Function 2 Set Limits 2 0000000000000000 29 3 5 3 Function 3 Set Knots Rate
25. Start the 6500 file in Hyperterminal On the task bar select Transfer Then select Send Text file The dialog box will open that allows you to select the txt file you want to transfer Open this file You will see the profile being downloaded as it is echoed back from the 6500 38 4 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 5 If you see garbage the first line of the profile as it downloads then you should redo the download This could happen on some systems on the very first profile you download during a session in Hyperterminal 6 To download more profiles in the same session simply repeat step 3 from the point you select Transfer After all profiles you wish to download have been transferred press GO on the 6500 Check that the profile loaded properly by selecting Function 4 on the 6500 and entering the profile number starting at step 1 i e 18 1 to check profile 18 Step through the profile using only ENTER and check if the points match what you have setup on the PC as your profile 4 5 EXECUTING A PROFILE On the 6500 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
26. and climb rate These limits are checked during data entry and thereby prohibit entry of erroneous target values These limits are also checked continuously during operation and if any of these is exceeded the unit automatically takes abortive action The user has the ability to program into the 6500 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 Up to 50 points can be stored in one profile The 6500 can store up to 20 such profiles in non volatile memory at any one time Calibration of the unit is required only once a year This process is the only scheduled maintenance function required on the 6500 The model 6500 comes with an RS232 interface This interface is mainly used to download profiles from a computer The high accuracy of the 6500 and its ease of use make it the ideal Air Data Controller for an instrument shop SECTION 2 CONTROLS AND CONNECTIONS Note Pt Pitot and Ps Static 2 1 FRONT PANEL The front panel of the 6500 is shown in Figure 2 1 The various components of the front panel are described below 1 Power ON OFF switch This is a Push On Push Off switch In the depressed position the switch in ON This switch is used to connect AC power to the unit When power is applied to the unit the front panel display will be illumin
27. ated 2 Contrast Control knob This single turn knob is used to adjust the viewing angle of the display 3 Remote Connection An optional Remote Unit may be connected to the 6500 at this connector 4 Ps Test Port This 1 8 NPT port is the Ps Static port of the unit This port is normally plugged when the unit is shipped from the factory This port is internally connected to the Ps Test port on the rear panel of the unit This port can be used to connect to the Static port of the Unit Under Test UUT Caution If this port is not connected to a UUT then it must be plugged while the 6500 is operational Caution A Unit Under Test must not be connected to this port or disconnected from this port unless the 6500 is in Measure Mode Caution Do not connect the UUT to this port while performing the Self Test 6500 PANEL 2 1 V 88 333 3 9384 Wnn2vA T 0101010118 TANVd 38 0055 Figure 2 2 5 Pt Test Port This 1 8 NPT port is the Pt Pitot port of the unit This port is normally plugged when the unit is shipped from the factory This port is internally connected to the Pt Test port on the rear panel of the unit This port can be used to connect to the Pitot port of the Unit Under Test UUT Caution If this port is not connected to a UUT then it must be plugged while the 6500 is operational Caution A Unit Under Test must not be connected
28. be in Leak mode keeping the Pitot output in Control mode Pressing the CANCEL key allows you to exit from the Leak Screen back to the Main Operating Screen If the mode prior to entering the Leak mode was Control then the 6500 will revert back to Control mode on exiting the Leak Screen 34 SELF TEST SCREEN As part of the start up procedure it is recommended that a Self Test be performed on the 6500 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 If there are errors on line 4 of the display press CANCEL to clear each error as it appears until line 4 is clear Now press NEXT SCREEN twice The display will show the screen shown below SELF TESTS Vent Ps and Pt ports to ambient Turn On pressure and vacuum supplies Then press GO 26 There are seven tests performed on the system These tests check every subsystem for acceptable operation If a malfunction is detected in any part of a subsystem that subsystem is flagged as defective Once a defective subsystem is detected the self test function is aborted Therefore if more than one subsystem is defective the first defective subsystem will cause the tests to abort thereby preventing the user from detecting the flaws in the other malfunctioning subsystems The tests are performed on the following sub
29. ble control mechanism which can allow the user to control the pressure at its output Step 2 Turn on the 6500 and allow it to warm up for about 30 minutes Change the units to PsinHg on the Static side and PtinHg on the Pitot side Refer to section 3 2 3 on how to change units During the warm up period purge the system with Dry Air by cycling the pressure at the Static port between 38 inHg absolute and 1 inHg absolute or lower at least three times Also ensure that there are no leaks in the system 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 Ps port PsinHg of the 6500 This is the first of your Before calibration adjustment reading It will indicate the zero drift since the previous calibration Note If your Standard cannot generate 1 000 inHg abs the lowest possible pressure below 4 000 inHg abs will be acceptable Step 4 Generate a pressure of 38 000 inHg absolute allow the pressure to stabilize for 2 minutes and take the reading on the Ps port PsinHg of the 6500 This is the second of your Before calibration adjustment reading It will indicate the zero plus slope drift since the previous calibration Leave the pressure at 38 000 inHg while you perform the next step Note If your Standard cannot generate 38 000 inHg abs any pressure between 32 000 and 38 000 inHg
30. ceptable 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 If you press CANCEL the calibration adjustment will become void Step 9 Turn the 6500 OFF wait 30 seconds and then turn it back ON The calibration adjustment is now complete for the Ps port Step 10 Verify the calibration by generating pressures in approximately 1076 increments and noting the 6500 Ps port PsinHg readings Your calibration sheet will appear as shown in Figure 6 1 64 Pt Pitot CALIBRATION Step 1 Connect the output of the Pressure Standard to the Pt port on the 6500 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 Step 2 Turn on the 6500 and allow it to warm up for about 30 minutes Change the units to PsinHg on the Static side and PtinHg on the Pitot side Refer to section 3 2 3 on how to change units During the warm up period purge the system with Dry Air by cycling the pressure at the Pt port between 100 inHg absolute and 1 inHg absolute or lower at least three times Also ensure that there are no leaks in the system Step 3 After the warm up period is over using the Pressure Standard generate a pressure of 44 1 000 inHg absolute Allow the pressure to be stable at
31. cknowledge error messages or exit an executing profile NUMERIC KEYS These keys are used for numeric entry of target values and other numeric data The key operates just like on a calculator and is used to enter negative values This key must be used after entering the positive value to make it negative The CLR Key is used to clear the data entry field The ENTER Key is used to accept numeric entries and also select units and modes TARGET VALUE KEYS There are typically 3 parameters that the 6500 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 After selecting the target value key the new value can be entered using the numeric keypad The UP ARROW and DOWN ARROW Keys are used to Jog a target value The arrow keys are also used to move between various choices during Unit selection and Mode selection For more information please refer to Section 3 2 2 UNITS SELECT KEYS Units can be selected independently for the Pt and Ps outputs Pressing the Pt UNITS key will bring up the choices in Pt units onto the 4th line of the display To exit from this selection mode press CANCEL To move between the choices use the arrow keys There are nine Pt units in all The cursor location is indicated b
32. d by using the CLR key to clear the entry and re entering the value When the desired value is input into the value entry field press ENTER and the value will blink The trailing decimal and 0 will automatically get added In the sample screen below the 200 0 is shown shadowed to indicate blinking Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 200 0 3000 0 16 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 You can press CANCEL even when the value is blinking In the above example if you were to press CANCEL the old Pt target value of 20 0 will remain effective If there is an error in the value being entered then that error will be displayed on line 4 of the display To clear the error enter CANCEL or CLR This will also erase the erroneous value and the previous value will stay in effect Most errors are caused because a value entered is outside the limits If the new value does not blink after pressing ENTER and no error message appears then there is a communication problem between the Remote unit and the main unit Please abort and contact the factory If GO is pressed after ENTERing the value the 6500 will try to achieve this new target value ONLY IF the Pitot output is in the CONTROL mode Therefore it is desir
33. e Static output the climb unit is the per minute rate of that selected Static unit If the Static unit selected is inHg then the climb unit will be inHg min The currently selected climb unit is shown on the first line of the display as shown below The two values 3500 and 3000 that appear below it are in these units Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter4 Pitot Actual value This is the current pressure measured at the Pitot output Pt test port displayed in the current units In the sample screen shown below the current pressure at the Pitot output is 101 2 knots This value is updated every 0 25 seconds Units knots Feet min Feet Actual 101 2 3500 1005 M Target 20 0 3000 0 Parameter 5 Static Actual value This is the current pressure measured at the Static output Ps test port displayed in the current units In the sample screen shown below the current pressure at the Static output is 1005 Feet This value is updated every 0 25 seconds Units knots Feet min Feet Actual M 101 2 3500 1005 Target 20 0 3000 0 13 Parameter 6 Climb Actual value This is the current rate of change of pressure measured at the Static output Ps test port 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
34. e all valid and correct If you going into the Leak mode at any point then make sure that you achieve that point in Control mode before you actually change to Leak mode For example if you want to perform a Leak at 18 000 feet then you must have one point in Control mode which takes the Static port to 18 000 feet followed by another point 36 10 11 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 After the higher altitude is achieved the Mach number can be increased to the desired value This must be done to prevent a high Mach number at a low altitude causing an excessive airspeed knots to be generated For example if you want to achieve 0 800 Mach at 30 000 feet 35 000 feet and 40 000 feet then your profile points must be set up as follows Mach Control 0 200 Feet Control 30000 6000 Mach Control 0 800 Feet Control 30000 6000 Mach Control 0 800 Feet Control 35000 6000 Mach Control 0 800 Feet Control 40000 6000 Notice how the Mach is kept low until 30 000 feet is achieved Then it is ramped to 0 800 which would be an acceptable airspeed Once this first point is achieved you do not have to lower Mach again because for altitudes of 35 000 and 40 000 feet the same Mach number would actuall
35. e 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 How to change the Climb Target value is explained in section 3 2 2 Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 10 Pitot Mode The Pitot output Pt test port can be in one of three modes Measure M Leak L or Control C In the Measure mode the pressure at the Pitot output is simply being measured and displayed as the Actual value in the current Pitot units The pressure is not being changed by the 6500 In this mode the Pitot valve inside the 6500 that is used to change the pressure at the Pitot output is pneumatically isolated from the Pitot output In the Measure mode the Pitot Target value is meaningless since the 6500 is not trying to achieve any specific target value The Leak mode is pneumatically identical to the Measure mode When either Pitot or Static output is in Leak mode the screen changes from the Main Operating screen to the Leak screen The Leak screen is detailed in section 3 3 When the Pitot output is in the Control mode the 6500 is actually attempting to achieve the Pitot Target value The Pitot control valve inside the 6500 is now connected to the Pitot output and is actually increasing or decreasing the pressure to achieve and maintain the Target value For an explanat
36. ed by the user at the point where the error occurred after the error is rectified 11 Ifa particular test procedure requires more than 50 points then these points can be split between 2 or more profiles For instance if a transponder test requires 80 points then the first 50 points can be loaded as profile 1 and the remaining 30 points can be loaded as profile 2 When profile 1 has been completed at point 1 50 the 6500 will stay at that point until the next command The user can start profile 2 1 and execute the 51st point and continue through the remaining 30 points using profile 2 40 SECTION 5 TYPICAL USE This section assumes that the user has read Section 3 and understood the functioning of the 6500 Please do not follow the sequence shown below without first reading Section 3 The following steps show a typical use of the 6500 for checking aircraft instruments The following steps must be performed at the start of each day 1 Open one Ps port and one Pt port to ambient 2 Turn the 6500 ON 3 Connect the pressure and vacuum supplies AFTER the 6500 is ON 4 Runthe SELF TEST 5 SET GROUND Function 7 The following steps must be performed while checking each UUT Unit Under Test Qu Ensure that both Pt and Ps ports are in MEASURE mode 7 Connect the UUT to the Pt and Ps ports If only one port is to be used like when testing an altimeter make sure the unused port is plugged Plug the spare Ps and Pt ports
37. ed that both Pitot and Static values be entered so that both are blinking before the GO key is pressed Static target value For entering Ps or altitude target values press the Ps ALTITUDE key and then follow the same process as described above Climb target value For entering Ps rate or CLIMB target values press the Ps RATE CLIMB key and then follow the same process as described above Note that while entering Climb values it is NOT necessary to include the sign of the rate of climb The 6500 will automatically determine the direction of the rate of change The displayed actual value will however indicate with a minus sign that the rate of change is a descent instead of a climb 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 UUT 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 19 arrow keys The selected target value can be jogged with the arrow keys until any key other than the arrow keys is pressed Each time the arrow Key is pressed the selected target value will be incremented UP arrow or decremented DOWN arrow by a specific amount depending on the units of the target value The increments for the different units are as follows Pt units Ps units Climb units Knots 1 Feet 1 feet
38. elect Function Select Screens 2 3 Change knots rate 4 Execute profile Return to Main 5 Setup Profile Height Correctio 7 8 Next Screen Calibration Next Screen Self Test Self Test Progress Figure 3 1 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 6500 actually operates Interaction with the 6500 is done through several different screens that are displayed AII the screens are shown in Figure 3 1 Of the screens shown in Figure 3 1 the Self Test screen is used only at startup all the Function Select screens are used only a few times during normal operation and also when first setting up the 6500 The Calibrate screen is used only once a year by the calibration facility During normal operation the two screens that are used the most are the Main Operating screen Main Screen and the Leak Screen All the different screens except the calibration screen are explained in this section The Calibration screen is explained in section 6 32 MAIN OPERATING SCREEN Most of the operation of the 6500 is done in the Main Screen All the pertinent parameters are displayed on this screen The screen is also used to change Target values Units and Modes The following sub sections explain the various uses of the Main Screen 3 2 1 DISPLAYED PARAMETERS There are 11 basic parameters of importance while using the 6500 Each of these pa
39. feet 50000 2 min knots 200 0 5 min feet 2000 3 max mach 1 000 6 max ft min 6000 There are six limit values that can be set These limits are checked when a Target value is entered If the target value exceeds any of the limits an error is generated The Actual values are also checked when the 6500 is in the Control mode If any of these limits is exceeded by a pre defined amount an error will be generated and the 6500 will revert to Measure mode An explanation of each limit follows 29 1 Max knots This defines the maximum airspeed that can entered as a Target value or generated as an Actual value Typically this is set to the maximum airspeed that the UUT can tolerate The maximum value for this limit is 1100 and the minimum is 0 A typical setting for this limit is 500 0 2 Min knots This limits is usually negative and it defines the maximum Negative Oc that the airspeed instruments UUT can tolerate In most cases it should be set to about 200 0 since almost all airspeed indicators can tolerate at least that much negative Setting it any closer to 0 0 may cause the limit to be tripped very frequently The maximum value for this limit is 0 and the minimum is 900 3 Max Mach This limit is usually set to the maximum allowable Mach number that the UUT can tolerate The maximum value for this limit is 5 0 and the minimum is 0 1 A typical setting for this limit is 1 0 4 Max Feet T
40. grees to use its best efforts to have original suppliers make good their warranties COPYRIGHT NOTICE Copyright 1991 2005 by Laversab Inc 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 DISCLAIMER No representations or warranties are made with respect to the contents of this user s manual Further Laversab Inc reserves the right to revise this manual and to make changes from time to time in the content hereof without obligation to notify any person of such revision REVISION HISTORY Document No Release Date Description 9014 Rev A 02 24 1993 6500 User s Manual 9014 Rev B 06 22 1998 6500 Rev B User s Manual 9014 Rev C 12 28 2004 6500 Rev C User s Manual 9014 Rev D 02 15 2005 6500 Rev D User s Manual 9014 Rev E 06 06 2005 6500 Rev E User s Manual WARNING ir THE 6500 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 BEFORE PERFORMING ANY MAINTENANCE TURN THE POWER OFF AND DISCONNECT THE POWER CORD FROM THE POWER SOURCE ALWAYS USE A 3 PIN GROUNDED OUTLET AS YOUR AC POWER
41. his limit is usually set to the maximum altitude that the UUT can tolerate The maximum value is 80 000 and the minimum is 0 A typical setting for this limit is 50 000 5 Min Feet This limit is usually set to the minimum altitude that the UUT can tolerate It is usually a negative number The maximum value for this limit is 80 000 and the minimum is 16 000 A typical setting for this limit is 2000 6 Max Ft min This limit is usually set to the maximum rate of climb that the UUT can tolerate The maximum value for this limit is 25 000 and the minimum is 100 A typical setting for this limit is 6000 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 was selected to modify the max knots limit Note To set a negative value enter the positive value and then press the key SET LIMITS 1 max knots EI 4 max feet 50000 2 min knots 200 0 5 min feet 2000 3 max mach 1 000 6 max ft min 6000 The CLR key is used to clear the value entered The CANCEL key is used to exit the SET LIMITS screen 30 3 5 3 FUNCTION 3 SET KNOTS RATE Pressing 3 on the Function Select screen brings you into the Set Knots Rate screen This screen is shown below CURRENT RATE 250 0 knots min NEW RAT
42. ill give erroneous results Because the transducers are medium sensitive care must be taken to ensure that the hoses used in the calibration system do not out gas Normally PVC hoses or refrigeration type hoses have a tendency to out gas The ideal hoses to use are Teflon or Teflon coated hoses because they have a very low absorption and out gas coefficient Stainless steel hoses may also be used If the wrong type of hoses are used then the typical results obtained will show that the error increases as the pressure increases Also it is very unlikely that the repeatability of the indicated pressure will be less than 0 002 inHg at 100 inHg If the system cannot achieve repeatability of 0 002 inHg or less then the most likely cause is the out gassing of hoses In the following sections the instructions call for generating a pressure of 1 000 inHg abs using the Pressure Standard If your Standard cannot generate such a low pressure then please generate as low a pressure as possible provided it is less than 4 0 inHg abs The 6500 has a drift of typically 0 005 FS per year Therefore it needs to be calibrated once year to perform adequately as a calibration standard for air data equipment 42 6 3 Static CALIBRATION Step 1 Connect the output of the Pressure Standard to the Ps port on the 6500 The pressure and vacuum sources are to be connected to the Pressure Standard and it is assumed that the Pressure Standard has a suita
43. interface is a three wire interface using the signals RX TX and GND Each byte of data is sent in ASCII format using 8 bits per byte with 1 stop bit no parity at 9600 baud The pin out of the interface is as follows Pin2 Transmit TX Pin3 Receive RX Pin 5 Signal ground GND The baud rate parity bits per byte and number of stop bits cannot be altered and is set to 9600 No parity 8 bits and 1 stop bit respectively 8 2 COMMUNICATION SYNTAX All commands to the 6500 are two letter commands Some commands are used both to read and write data Others are used only to read data back from the 6500 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 lt CR gt Each value returned by the 6500 is terminated by a CR 49 Command PA RA SA RT n SU n PM n SM n ER R W R W R W R W R W R W R W Description Actual pitot value in current units Actual climb Ps rate value in current units Actual static value in current units Read Set Pt target value Read Set climb Ps rate target value Read Set Ps target value Jog up n 0 or down n 1 Pt target Jog up n 0 or down n 1 rate target Jog up n 0 or down n 1 Ps target Read Set Pt units as per following units knots mach Pt inHg Qc inHg Pt mb Qc mb mph kmph EPR QI gt PN 2
44. ion of how to change the Pitot mode between Measure Leak and Control please refer to section 3 2 4 Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 15 Parameter 11 Static Mode The Static output Ps test port be in one of three modes 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 6500 In this mode the Static valve inside the 6500 that is used to change the pressure at the Static output is pneumatically isolated from the Static output In the Measure mode the Static Target value is meaningless since the 6500 is not trying to achieve any specific target value The Leak mode is pneumatically identical to the Measure mode When either Pitot or Static output is in Leak mode the screen changes from the Main Operating screen to the Leak screen The Leak screen is detailed in section 3 3 When the Static output is in the Control mode the 6500 is actually attempting to achieve the Static Target value The Static control valve inside the 6500 is now connected to the Static output and is actually increasing or decreasing the pressure to achieve and maintain the Target value For an explanation of how to change the Static mode between Measure Leak and Control please refer to section 3 2 4
45. knots Control 200 0 Feet Control 0 6000 5 knots Leak 200 0 Feet Control 0 6000 6 knots Control 100 0 Feet Control 1000 6000 7 knots Control 200 0 Feet Control 5000 6000 8 knots Control 300 0 Feet Control 10000 6000 9 knots Control 100 0 Feet Control 18000 6000 10 knots Control 100 0 Feet Leak 18000 6000 11 knots Control 100 0 Feet Control 30000 6000 12 knots Control 100 0 Feet Control 50000 6000 13 knots Control 20 0 Feet Control Ground 6000 14 knots Measure 20 0 Feet Ground 6000 15 END Row 1 always says Profile This indicates to the 6500 that a profile is to follow Row 2 left cell shows the name of the profile This profile is named Sample The name can have up to 12 alphanumeric characters This name will show up on the 4 line of the 6500 display when this profile is executed 34 Row 2 middle cell shows the number of the profile This profile has a number 3 This tells the 6500 that this profile is to be loaded in as profile number 3 When profile 3 is executed on the 6500 this Sample profile will be executed This number can be any number between 1 and 20 When this profile is downloaded into the 6500 it will overwrite the previous profile that was resident in the 6500 as number 3 Row 2 right cell shows the height correction This should normally be zero Rows 3 through 14 are the points of the profile This profile has only 12 points For each of these points the columns contain the following infor
46. lect COMI Select new dialog box will open named Com1 37 Properties Setup the Port Settings as follows Bits per second 9600 Data Bits 8 Parity None Stop Bits 1 Flow control None Select Apply Then select OK This will take you into the 6500 Hyperterminal window Select File Select Properties A new dialog box 6500 Properties appears Select the Settings tab In the Emulation menu select ANSI Select OK Now you are back in the 6500 Hyperterminal window Select File select Save Close this window A warning appears select Yes Hyperterminal is now setup To verify that the 6500 file is setup in Hyperterminal select Programs from the desktop select Accessories select Communications select Hyperterminal The 6500 icon should appear If it does not appear then you will need to repeat steps 1 and 2 above 4 4 DOWNLOADING PROFILES 1 Connect the one to one RS232 cable to the RS232 port on the 6500 You will need to remove the access panel for this Connect the other end of this cable to the COM1 port on your PC Turn on the 6500 and select Function 5 Set Profiles The following screen appears PROFILE SETUP Please stay in this screen and download One or more profiles through the RS232 interface On completion press GO Stay in this screen until all profiles you would like to download have been downloaded
47. librated date 10 10 01 CALIBRATION RESULTS STATIC PRESSURE Ps TEST POINT AS FOUND AS LEFT inHg inHg 1 Vacuum 1 001 1 000 2 Fullscale 38 002 38 000 PITOT PRESSURE Pt TEST POINT AS FOUND AS LEFT inHg inHg 1 Vacuum 1 002 1 000 2 Fullscale 100 005 100 000 DEVIATION inHg 0 001 0 002 DEVIATION inHg 0 002 0 005 VERIFICATION RESULTS STATIC PRESSURE Ps PITOT PRESSURE Pt APPLIED DISPLAYED APPLIED inHg inHg inHg 1 000 1 000 1 000 4 000 4 000 10 000 8 000 8 000 20 000 12 000 12 000 30 000 15 000 15 000 40 000 19 000 19 001 50 000 23 000 23 001 60 000 27 000 27 000 70 000 30 000 30 000 80 000 34 000 34 000 90 000 38 000 38 000 100 000 DISPLAYED inHg 1 000 9 999 19 999 30 000 40 000 50 000 60 000 70 001 80 001 90 002 100 000 Calibrated by Figure 6 1 Sample calibration sheet 47 SECTION 7 MAINTENANCE ts Scheduled maintenance of the 6500 includes calibration once a year The calibration procedure is described in Section 6 In addition to calibration there is only one other item that requires regular maintenance replacing the fan intake filter as required 48 SECTION 8 COMMUNICATION INTERFACE man The model 6500 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
48. libration If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Note If your Standard cannot generate 100 000 inHg abs pressure between 80 000 and 100 000 inHg abs will be acceptable Enter the value of the generated pressure Step 7 Now generate a pressure of 1 000 inHg with the Standard Allow the pressure to stabilize for 2 minutes select item 17 using the keypad on the remote unit and then enter the value 1 000 in item 1 This indicates the vacuum point for the calibration If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Note If your Standard cannot generate 1 000 inHg abs the lowest possible pressure below 45 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 If you press CANCEL the calibration adjustment will become void Step 9 Turn the 6500 OFF wait 30 seconds and then turn it back ON The calibration adjustment is now complete for the Pt port Step 10 Verify the calibration by generating pressures in approximately 10 increments and noting the 6500 Pt port PtinHg readings Your calibration sheet will appear as shown in Figure 6 1 46 Model 6500 Serial 74678 Full scale Ps 38 inHg Pt 100 inHg Last Ca
49. mation Column Information A Pitot units B Pitot mode C Pitot target value D Static units E Static mode F Static target value G Rate target value In the sample profile Row 3 which is the first point in the profile tells the 6500 to go in Control mode to 100 knots on the Pitot side and in Control mode to 0 feet at 6000 feet min on the Static side Row 4 point 2 makes the 6500 go to 200 knots and 0 feet at 6000 ft min Row 5 point 3 puts the Pitot side into Leak mode while still keeping Static in Control at 0 feet Row 6 point 4 puts the Pitot side back into Control and takes it down to 100 knots The Static side is simultaneously moved up to 1000 feet at 6000 ft min Row 7 point 5 takes Pitot up to 200 knots and Static up to 5000 feet at 6000 ft min Row 8 point 6 takes Pitot up to 300 knots and Static up to 10 000 feet at 6000 ft min Row 9 point 7 takes Pitot down to 100 knots and Static up to 18 000 feet at 6000 ft min Row 10 point 8 keeps Pitot at 100 knots and puts Static into Leak mode while at 18 000 feet Row 11 point 9 keeps Pitot at 100 knots and ramps Static in Control mode to 30 000 feet at 6000 ft min Row 12 point 10 keeps Pitot at 100 knots and ramps Static to 50 000 feet at 6000 ft min 35 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 1
50. min 10 mach 0 001 Psin 0 001 inhg min 0 01 PtinHg 0 001 mtrs 1 mtrs min 10 OcinHg 0 001 mbar 0 01 mbar min 0 1 Ptmb 0 01 Qcmb 0 01 mph 1 kmph 1 EPR 0 001 3 2 3 UNITS SELECTION Pitot Units There are nine units to select from on the Pt output The units are knots Mach Pt inHg Oc inHg Pt mbar Qc mbar miles per hour mph kilometers per hour kmph and 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 The UP ARROW key moves the cursor left the DOWN ARROW key moves the cursor right AS the cursor moves past the last selection the next selection will be displayed The sample screen below shows the different Pt units with the cursor under knots Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Pt units knots Mach PtinHg QcinHg When the cursor is moved past OcinHg line 4 of the display will look like this Ptunits Mach PtinHg QcinHg Ptmbar 20 Each time the cursor is moved right the displayed units will scroll left When the cursor is moved to the last selection line 4 will look like this Ptunits Qcmbar Mph Kmph EPR Select the desired units by moving the
51. o the new units and the target values will blink This is shown in the sample screen below where the units of PsinHg have been selected Units knots PsinHg min PsinHg Actual 101 2 8 345 28 986 M Target 20 0 10 000 29 054 21 The unit selection will not become effective until the GO key is pressed The 6500 will return to the old units if the CANCEL key is pressed It must be noted that the units change does not perform a conversion between the units of feet minute or meters minute to Ps inHg min Ps mbar min The target values for inHg min and mbar min are distinct from feet min and meters min The values do get converted between feet min and meters min They also do get converted between inHg min and mbar min 3 2 4 MODE SELECTION Pitot Mode The Pitot output has three modes of operation The three mode are Measure M Leak L and Control C The power up mode defaults to Measure M To change the mode press the Pt Mode key The three modes will be displayed on line 4 of the display with the cursor under the Measure mode The UP ARROW key can be used for moving the cursor left and the DOWN ARROW key can be used to move the cursor right The cursor wraps around the selections that is moving the cursor left past MEAS wraps it around to CTRL The sample screen below shows the three mode choices displayed on line 4 of the display with the cursor under MEAS Units knots Feet min
52. pressed When the GO key is pressed the 6500 will execute the profile point i e it will change to Control mode and move towards the desired targets Units knots Feet min Feet Actual C 101 2 3500 1005 C Target 100 0 5000 1000 ENTER PROFILE NUMBER 2 1 ICJ1 RVSM Once the targets have been achieved you can move to the next profile point by pressing ENTER Then the parameter values in point 2 of profile 2 will be displayed the profile number will change to 2 2 and will again flash awaiting the GO key 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 At any time to exit out of the profile viewing or execution function press CANCEL and the screen will revert back to the last executed point 3 5 5 FUNCTION 5 SETUP PROFILES This function is used to load profiles into the 6500 from a PC A full explanation of how to load profiles into the 6500 is provided in Section 4 The following screen will come up when Function 5 is selected PROFILE SETUP Please stay in this screen and download One or more profiles through the RS232 interface On completion pre
53. rameters is displayed on the Main Screen Each parameter is explained below and highlighted in a sample screen Parameter 1 Pitot Units Unit of measurement for displaying the Pitot output Normally the Pitot unit used is Knots for displaying airspeed Other possible units for displaying the Pitot output are shown in section 3 2 3 which also explains how to select a particular unit The currently selected Pitot unit is shown on the first line of the display as shown below The two values 101 2 and 20 0 that appear below it are in these units Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter2 Static Units Unit of measurement for displaying the Static output Normally the Static unit used is Feet for displaying altitude Other possible units for displaying the Static output are shown in section 3 2 3 which also explains how to select a particular unit The currently selected Static unit is shown on the first line of the display as shown below 12 The two values 1005 and 0 that appear below it are in these units Units knots Feet min Feet Actual M 101 2 3500 1005 Target 20 0 3000 0 Parameter 3 Climb Units Unit of measurement for displaying the rate of change of the Static output or Climb Normally the climb unit used is Feet min for displaying rate of change of altitude These units cannot be independently chosen Whatever the unit selected for th
54. riodically the filter on this intake must be cleaned SECTION 3 UNDERSTANDING THE 6500 Note Pt Pitot and Ps Static The 6500 is typically used to calibrate and check air data instruments like altimeters climb indicators and airspeed Mach indicators in an instrument shop This section will explain how to use the 6500 to perform these functions 31 START UP Step 1 Open one of the Ps test ports and one of the Pt test ports to ambient Step 2 Connect power to the 6500 and turn it ON Step 3 Connect the pressure supply to the Pressure port of the 6500 Connect the vacuum supply to the Vacuum port of the 6500 Note DO NOT connect the pressure or vacuum supplies until the 6500 has been turned ON DO NOT connect any UUT to the test ports The 6500 will turn ON with two beeps The display will briefly show the sign on screen and then go into the Main screen The Main screen should appear as follows Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 The Actual values shown on line 2 will be different from the ones shown above The 4th line should be blank Before actually using the 6500 to perform certain tasks it is important to understand how to use the 6500 to make it do what you want This section explains everything about the information that you see on the display what it means and 10 Main Leak mode Leak Operating Screen Screen Function S
55. ss GO Once the profiles have been loaded press GO to exit this function 3 5 6 FUNCTION 6 HEIGHT CORRECTION This function is typically not used on the 6500 The value for the Height correction should always be set to Zero The screen appears as shown below 32 Current Height Correction 0 feet New Height Correction teet Enter new height 0 50 or press CANCEL 3 5 7 FUNCTION 7 SET GROUND The Set Ground function is used to indicate to the 6500 the ambient Ground pressure Before connecting the 6500 to the UUT just after the Self Test has been performed it is 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 6500 will memorize the ambient pressure it measures as the Ground pressure This will be used later when the Go To Ground function is invoked Press GO to Set Ground or press CANCEL to exit 3 5 8 FUNCTION 8 GO TO GROUND The Go To Ground function is used to bring the UUT down to Ground The target altitude is set to the value memorized in the Set Ground function and the target airspeed is set to 20 knots and the 6500 ramps towards these targets Once these targets have been achieved you must put the 6500 into Measure mode on both outputs and only then disconnect the UUT from the 6500 The Go to Ground screen is shown below
56. systems System ROM System RAM Ps pressure measurement system Pt pressure measurement system Pressure and Vacuum pump assembly Ps pressure control system Pt pressure control system IA gs QT aca S To start the Self Test please make sure that the Pitot and Static outputs are open to ambient and then press GO The status of each test will be displayed on the screen as shown below ROM OK RAM OK Ps measurement system OK Pt measurement system OK 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 If any of the tests fail then note the failure turn OFF the unit and contact the factory 27 3 0 FUNCTION SELECT SCREEN There are 8 different functions that can be performed These are View Limits Set or Change Limits Set or Change the knots rate View or Execute profiles Setup profiles Height Correction Set Ground Go To Ground ONCOL gs DS Pressing the Function Select key on the keypad allows you to go into the function select screen which is shown below Select function 1 View limits 2 Set limits 3 Set knots rate DN ARROW for functions 4 to 8 now at 500 0 kts min If you
57. t This port can be used to connect to the Pitot port of the Unit Under Test UUT Caution If this port is not connected to a UUT then it must be plugged while the 6500 is operational Caution A Unit Under Test must not be connected to this port or disconnected from this port unless the 6500 is in Measure Mode Caution Do not connect the UUT to this port while performing the Self Test 5 IEEE 488 port This port is currently not being used on the 6500 o 5232 interface connector 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 This port is normally used for downloading profiles from a computer Other remote communication with the 6500 is also possible through this interface For more details on downloading profiles please refer to Section 4 For more details on communication with the 6500 please refer to Section 8 7 AC input connector and Fuse A 5x20 mm fuse is located inside the fuse holder The fuse is a time delay fuse with a rating of 1 0 amp 250 Volts The 6500 will accept AC voltages between 90 260 VAC 47 440 Hz Typical power consumption is less than 80 VA Caution A power cord with a suitable Earth connection must be used to power the 6500 to prevent the possibility of a shock hazard 8 Circulating Fan intake The intake for the circulating fan must not be blocked Pe
58. t 5 seconds regardless of the target value Once this process is complete the actual values will move towards the target values This process is part of the Measure or Leak to Control transition and will take place only when the transition to Control takes place within 2000 feet of Ground and 150 knots 33 LEAK SCREEN Although most of the operation of the 6500 will be performed while in the Main Operating Screen described above at times the Leak Screen is also accessed When either of the Pitot or Static outputs is put into the Leak mode after pressing GO the display changes to the 24 Leak Screen A sample Static Leak Screen is shown below Start 5000 feet Instant Leak rate 4990 feet 30 Feet m Timer 00 20 Per min Leak rate Pt 200 kts WAIT Feet m A sample Pitot Leak Screen is shown below Start 200 0 kts Instant Leak rate Curr 199 5 kts 1 5 knots m Timer 00 20 Per min Leak rate Ps 0 feet WAIT knots m The parameters shown in the Leak Screen are Start This is the reading at which the leak test was started Curr This is the current reading of the output being leak checked Timer Shows the elapsed time of the leak test in minutes and seconds Pt Ps Shows the actual value of the output that is not in leak test Instant Leak rate Shows the instantaneous rate at which the output is leaking For the Static leak check this number is updated every 0 25 seconds and shows 0 for
59. to this port or disconnected from this port unless the 6500 is in Measure Mode Caution Do not connect the UUT to this port while performing the Self Test 6 KEYPAD amp LCD DISPLAY The back lit LCD display has 4 lines of 40 characters each The viewing angle of the display can be adjusted using the Contrast knob 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 6500 At present there are only three upper level operating screens Main Calibrate and Self test The FUNCTION SELECT key is used to go into a screen which allows the user to choose any one of eight functions The functions are View Limits Set Limits Set Knots rate Execute profile Setup profile Height Correction Set Ground Go to Ground DOM NC o iom These functions are described in detail in Section 3 The GO key is used to execute all changes made through the Remote unit After the changes have been ENTER ed they will flash on the screen until executed by the GO key This allows for simultaneous execution of several changes in target values modes units etc The CANCEL Key has multiple purposes It is used to abort all changes that are flashing on the screen It is also used to exit out of target value entry unit selection and mode selection It is used to exit out of other screens like Leak test and Function select The CANCEL Key is also used to a
60. ution If an oil based vacuum pump is used then do not turn off the pump while it is still connected to the vacuum port of the 6500 as this may cause severe damage to the 6500 2 Pressure port This 1 4 NPT port is used for connecting the pressure supply to the 6500 A clean DRY AIR not Nitrogen pressure supply of 110 inHg absolute 80 inHg gauge or 40 psig is ideal The pressure supply must be at least 5 inHg higher than the highest desired controllable pressure on the 6500 Caution Do not turn off the 6500 while the pressure supply is connected to it as this may cause severe damage to the 6500 and or the UUT Caution The pressure supply must be clean Dry Air only Using any other medium will cause significant accuracy errors 3 Ps Test Port This 1 8 NPT port is the Ps Static port of the unit This port is internally connected to the Ps Test port on the front panel of the unit This port can be used to connect to the Static port of the Unit Under Test UUT Caution If this port is not connected to UUT then it must be plugged while the 6500 is operational Caution A Unit Under Test must not be connected to this port or disconnected from this port unless the 6500 is in Measure Mode Caution Do not connect the UUT to this port while performing the Self Test 4 Pt Test Port This 1 8 NPT port is the Pt Pitot port of the unit This port is internally connected to the Pt Test port on the front panel of the uni
61. y result in a lower airspeed and the unit will automatically control this without any damage to the UUT Now that the profile is complete save the profile as an Excel file xls file using the name of the profile as the filename Then save it again using the Save As command but this time change the file type using the Save as type drop down selection to Text Tab delimited Use the profile name as the filename again You will get many warnings from Excel about the incompatibility of this text file but simply say Yes to all the warnings Once you have saved the file as a text file you will need to close the file When you do this many more warnings will pop up Please say yes to all these too At the end you should have two files for your new profile One xls file and one txt file both with the same filename Your profile has been created 4 3 SETTING UP HYPERTERMINAL You download a profile into the 6500 using the Hyperterminal program At first you need to setup Hyperterminal You only need to do this once 1 Hyperterminal comes loaded in your PC as part of the accessories Go into AII Programs then select Accessories then select Communication then select Hyperterminal It will ask you to setup a new connection Create a new connection with the name 6500 A dialog box named Connect To will appear The bottom selection in this box is Connect using From the drop down menu in Connect using se
62. y the blinking unit mnemonic Once the cursor is on the desired units press ENTER to select that unit Ps UNITS key brings up the choices for Ps 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 four Ps units to choose from For more information on Units Selection please refer to Section 3 2 3 MODE SELECT KEYS These keys are used to select between one of three operating modes Pressing these keys brings up the selection of modes onto the 4th line of the display The desired selection can be chosen by moving the cursor using the arrow keys and then pressing ENTER The GO Key will execute the entered selection Modes can be selected independently for the Ps and Pt outputs For more information on Mode Selection please refer to Section 3 2 4 22 REARPANEL The rear panel of the 6500 is shown in Figure 2 2 The various components of the front panel are described below 1 _ Vacuum Port This 1 4 NPT port is used for connecting a vacuum supply to the 6500 A vacuum supply of 0 3 inHg absolute or lower is ideal The vacuum supply must be capable of achieving a pressure that is at least 0 5 inHg lower than the lowest desired controllable pressure on the 6500 ie if the lowest controllable pressure is 2 0 inHg absolute then the vacuum supply must be capable of generating 1 5 inHg absolute or lower Ca

MODEL 6500 Rev. E USER`S MANUAL

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