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MODEL 6600 Rev. B4 USER`S MANUAL

1. G0 ng ng vn ng re 41 3 5 1 Function 1 View LmIfS SG GG ve 42 3 5 2 Function 2 Set Limits G ng ng 42 3 5 3 Function 3 Set Knots lafG G G nerne renerne egge 44 3 5 4 Function 4 View and Execute Profiles lt lt ccc lt sscsssecss 45 3 55 PONCHO Oo Setup Profiles fii aa ae ata se 46 3 5 6 Function 6 Height Correction aii0uo0siaolaii6sxui0sx0816p0065004036403 60016y0 0G 46 3 5 7 Function 7 Set Ground _ G G SE 1E ve 46 3 5 8 Function 8 Go To Ground 2G G SE E9 v vs vcze 47 Section 4 Protil es 2 1701 21 001200020100010L1201000106511100031080019012654000061000000906 2x00 xe 48 AL Wh tis Profile v82624 2046 0014 ceaGb0 o0Gitab obBb4GDbo0ob bsss xx 48 A 2 Created ERR AERA RRR RAR RRR 50 4 Setting Up Hyperterminal disse ERER AEREE 51 44 Downoadinga Profile 2 sn ss tetsdedel stedt eletedetet etat tedetate dele ea ana daterer 52 4 5 Executing a Profle NUNG T pen enan HE HUN SE BENENE UN A A 53 Section S Typicab USE LEE ED el rl delse 55 Section 6 Calibration _ rd dn HH ng ng ng c 58 ENN NNN ha cac 58 6 2 General NOfGS_ QQ TH ng ng ng ng co 58 6 3 Ps1 and Ps2 CalibratiOn_
2. G SE E38 S3 v9 E9 ve re 59 6 4 Pt Calibration Kurset 60 TABLE OF CONTENTS contd Section 7 Maintenance asbssseiobabteibiifisd ecbiietlsebiesedweadeldtshioseisdkselekseceeeddebdetisskvsdlelu s 64 Section 8 Communication Interface ao 65 8 1 RS232 Serial Interface sesessessssessssssesessessssesssssessesessesseseesssstsesessessessessssesseseosesstssesss 65 8 2 Communicator Syntax EE EEE ASER KNEE itii adeirdis 65 Appendix A Error Codes soi r s09 1y ceftuyilsufngbesfgbesftossifagbusfterdledfbgbuftedusfibndlstfse 69 Appendix B Specifications glene eden 70 Appendix C Connector Pin Outs s 2isi6cosisbboaebebooobboelesase 71 Appendix D Repair and Return Policies suste 72 vi SECTION 1 INTRODUCTION Note Pt Pitot Ps1 Primary Static Ps2 Secondary Static The model 6600 is a high accuracy automated pressure controller specifically designed for controlling air data parameters such as altitude airspeed Mach and climb It provides three independent outputs Ps1 Ps2 and Pt which allows the unit to be used on aircraft which use smart probes capable of reading Angle of Attack based on Static differential pressures This instrument can also be used to control pressures in units of inHg and mbar The 6600 is equipped with internal pressure and vacuum pumps The Remote unit is used to interface with the Main unit The small size of the Remote unit allows it to be used in the cockpit
3. 62 Model 6600 Serial 77123 Full scale Ps 38 inHg Pt 60 inHg Last Calibrated date June 25 2007 Next Calibration due June 25 2009 CALIBRATION RESULTS Ps1 Output TEST POINT AS FOUND AS LEFT DEVIATION inHg inHg inHg 1 Vacuum 1 001 1 000 0 001 2 Fullscale 38 002 38 000 0 002 Ps2 Output TEST POINT AS FOUND AS LEFT DEVIATION inHg inHg inHg 1 Vacuum 1 000 1 000 0 000 2 Fullscale 38 001 38 000 0 001 Pt Output TEST POINT AS FOUND AS LEFT DEVIATION inHg inHg inHg 1 Vacuum 1 001 1 000 0 001 2 Fullscale 60 002 60 000 0 002 VERIFICATION RESULTS Ps1 Output Ps2 Output Pt Output APPLIED DISPLAYED APPLIED DISPLAYED APPLIED DISPLAYED inHg inHg inHg inHg inHg inHg 1 000 1 000 1 000 1 000 1 000 1 000 4 000 4 000 4 000 4 000 6 000 5 999 8 000 8 000 8 000 7 999 12 000 11 999 12 000 12 000 12 000 11 999 18 000 18 000 15 000 15 000 15 000 15 000 24 000 24 000 19 000 19 001 19 000 19 000 30 000 30 000 23 000 23 001 23 000 23 000 36 000 36 000 27 000 27 000 27 000 27 001 42 000 42 001 30 000 30 000 30 000 30 000 48 000 48 002 34 000 34 000 34 000 34 000 54 000 54 001 38 000 38 000 38 000 38 000 60 000 60 000 Calibrated by Date June 25 2008 Figure 6 1 Sample calibration sheet 63 SECTION 7 MAINTENANCE EEE SEE EEE Scheduled maintenance of the 6600 includes calibration once a year The calibration procedure is described in Section 6 Apart from this there are no other scheduled
4. Important Note If the Ps2 output is not being used then it must be capped off closed 3 2 4 MODE SELECTION Pt Mode The Pt mode can be selected both in 2 output and 3 output formats The Pt 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 key in the Mode section of the keypad The three modes will be displayed on line 4 of the display with the cursor at Measure MEAS indicated by MEAS blinking The UP ARROW key can be used for moving the cursor right and the DOWN ARROW key can be used to move the cursor left 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 at MEAS 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Ptmode 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 Pt mode as LEAK Notice that the L on the left in line 2 is blinking 2 output format Units knots Feet min Feet Actual L 101 2 3500 1005 M Target 20 0 3000 0
5. Go To Ground Change the main screen to 3 output format Change the main screen to 2 output format 68 APPENDIX A ERROR CODES Ss All errors are displayed on line 4 of the display when the 6600 is in the Main screen An error must be acknowledged before any other key entries are accepted The error may be acknowledged either by pressing the CANCEL or the CLR key ERROR CODES DESCRIPTION 1 Ps2 target exceeds limit 2 Ps2 actual value exceeds limit 3 Pt target exceeds knots limits 4 Pt target exceeds mach limit 5 Rate target exceeds limit 6 Ps1 target exceeds altitude limits 7 Pt actual value exceeds knots limits 8 Pt actual value exceeds Mach limit 9 Ps actual value exceeds altitude limits 10 Ps2 EQZN transducer error 11 Profile error 12 Ps1 EQZN transducer error 13 Pt EQZN transducer error 14 18 Internal use only 19 Ps2 Target exceeds Diff limits 20 Ps2 Actual exceeds limit 21 Ps2 Target exceeds Qc limit 22 Ps2 Target exceeds Mach limit 23 Ps2 Target exceeds Alt limit 24 Ps2 Actual exceeds Qc limit 25 Ps2 Actual exceeds Mach limit 26 Ps2 Actual exceeds Alt limit 69 APPENDIX B SPECIFICATIONS EE EEE Ps1 Output Pressure function range 0 1 to 42 inHg resolution 0 001 inHg accuracy 0 002 inHg Altitude function range 4000 ft to 60 000 ft resolution 1 foot accuracy 2 ft 0 ft Climb function range resolution accuracy Pt Output Pressure function range resolution accuracy Airspeed functi
6. 2 Fuse A 5x20 mm fuse is located inside the fuse holder The fuse is a time delay fuse with a rating of 3 0 amps 250 Volts 3 AC On Off switch This toggle switch connects or disconnects AC power between the AC INPUT connector and the 6600 Even when this switch is ON the 6600 becomes operational only after the On Off switch located on the right side of the Remote Unit is turned ON Push in to turn ON 4 Remote Unit connection The 6600 is provided with a 50 foot remote cable to connect to the Remote unit The male end of the remote cable is connected here on the top panel The female end of the remote cable is connected to the Remote unit This cable should be connected prior to applying power to the 6600 This cable should not be disconnected while power is applied to the 6600 ZH Orr db OVA 092 06 INdNI ow iva 15d ssd NA Id 3 ANIA Sd O ANIA 28d O A Figure 2 1 000SZ TYIM3S y Aaa 0099 300N GVSAFAVT YILSIL DILVLS LOLId 0099 T3aon EVSHIN Figure 2 1 b The remote cable is normally left connected to the 6600 at the Remote connector on the top panel and is wrapped around four cord posts on the lid of the 6600 case The cord retainers on top of these posts swivel in either direction and latch at 180 degree positions allowing easy wrapping and unwrapping of the remote cable A cord clamp allows the cable to be held in place after it is wra
7. Important Note When either the Pt Ps1 or Ps2 Mode is changed to Control C ALL three outputs Pt Ps1 and Ps2 are automatically changed to Control During normal 34 operation all three outputs must be connected to the aircraft and all three outputs must be set to achieve specific target values If the aircraft requires only the Pt and Ps1 outputs then the Ps2 output must be capped off closed on the 6600 Note When the 6600 is powered ON the Pt mode will always be in MEASURE Ps1 Mode The Ps1 mode can be selected both in 2 output and 3 output formats The Ps1 output has three modes of operation 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 Ps1 key in the Mode section of the keypad The three modes will be displayed on line 4 of the display with the cursor at Measure MEAS indicated by MEAS blinking The UP ARROW key can be used for moving the cursor right and the DOWN ARROW key can be used to move the cursor left 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 at MEAS 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Psl mode MEAS LEAK CTRL Move the cursor to the desired mode and then pre
8. 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 B 4 max feet 50000 2 max Dfin 3 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 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 RATE BE knots min min 0 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 Note The Knots Rate is used to ramp the Pt output when the Pt units are airspeed units of knots Mach mph kmph It is also
9. 1 FS 2 4 61 Step 6 Ensure that the pressure generated by the Standard on the Static port is still 60 000 inHg Select item 2 using the keypad on the remote unit and then enter the value 60 000 in item 2 This indicates the Pt full scale point for the calibration It is the As Left Full Scale Test Point for Pt in Fig 6 1 If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Step 7 Now generate a pressure of 1 000 inHg with the Standard Allow the pressure to stabilize for 2 minutes select item 1 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 It is the As Left Vacuum Test Point for Pt in Fig 6 1 If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Step 8 On the keypad of the remote unit press PREV SCREEN The display will return to the Main Screen WARNING If you press CANCEL the calibration adjustment will become void Step 9 The calibration adjustment is now complete for the Pt output Proceed to the next step to verify the calibration Step 10 Verify the calibration by generating pressures in approximately 10 increments and noting the actual values for Pt at each pressure point Your calibration sheet will appear as shown in Figure 6 1
10. Dfin 3 0 5 min feet 2000 3 max mach 1 000 6 max ft min 6000 42 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 6600 is in the Control mode If any of these limits is exceeded by a pre defined amount an error will be generated and the 6600 will revert to Measure mode on all three outputs Note When an Actual value exceeds the limit the 6600 will put all outputs into Measure mode To get back into Control mode it is first necessary to temporarily increase the limit so that the Actual values are within the new limit If the limit is not increased the Actual value will continue to exceed the limit and will constantly generate an error preventing the outputs from going into Control mode An explanation of each limit follows 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 instruments on the aircraft can tolerate The maximum value for this limit is 1100 and the minimum is 0 A typical setting for this limit is 500 0 The factory default is 400 0 2 Max Dfin This limit defines the maximum allowed differential between the Ps1 and Ps2 outputs in inHg If the limit is set to 3 0 then the maximum difference allowed between Ps
11. commanding target values viewing actual values setting units and modes 24 3 22 TARGET VALUE ENTRY Pt 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 6600 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 Pt output After the Pt AIRSPEED key is pressed the 2 output format will appear as shown below The Pt target value can also be entered in the 3 output format 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 3000 0 Note The last effective Pt target value is retained through a power On Off cycle Numeric value entry Use the numeric keys to enter the value Use the key after entering the value to change the sign of the value The 6600 will beep on every key entry and it will beep for a longer time period if extra invalid digits are entered It is not necessary to enter the decimal point and the digit after the decimal point if that digit is 0 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 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 200 3000 0 If a mi
12. desktop select Accessories select Communications select Hyperterminal S1 The 6600 icon should appear If it does not appear then you will need to repeat steps 1 and 2 above 4 4 DOWNLOADING PROFILES 1 Connect the one to one RS232 cable to the RS232 port on the 6600 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 6600 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 Start the 6600 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 6600 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 If you see garbage on 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 d
13. Vent Pt Vent In the event that the 6600 is in operable due to a malfunction or due to loss of power it is possible to vent the Pitot system manually This is done using the metering valve labeled Pt Vent This valve is a positive shut off valve Opening this valve slowly will cross bleed the Pt output to the Ps1 output of the 6600 While venting care must be taken to maintain the airspeed within limits of the indicator on the aircraft The Secondary Static Ps2 and Pitot Pt ports are referenced to the Primary Static Ps1 port The Ps2 Vent and Pt Vent valves are used to cross bleed to the Primary Static Ps1 ports Therefore the manual vent valves must be opened in sequence First open the Ps2 Vent valve then the Pt Vent valve and last the Ps1 Vent valve Caution Before opening the Ps1 Vent valve both the Ps2 Vent and Pt Vent valves must be completely open Caution Do not over tighten the valve as this may damage the seat of the valve 31N3W3 IdWI LON ATIN3dANI SYOLIINNOD AIVAYALNI 0099 Figure 2 2 139HVL Q33dSUIV td N3340S T39NV9 1X3N y Figure 2 3 22 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 660
14. between Measure Leak and Control please refer to section 3 2 4 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 14 Ps1 Mode This parameter is accessible in both 2 output and 3 output formats The Ps1 output can be in one of three modes Measure M Leak L or Control C In the Measure mode the pressure at the Ps1 output is simply being measured and displayed as the Actual value in the current Ps1 units The pressure is not being changed by the 6600 22 In this mode the Ps1 control valve inside the 6600 that is used to change the pressure at the Ps1 output is pneumatically isolated from the Ps1 output In the Measure mode the Ps1 Target value is meaningless since the 6600 is not trying to achieve any specific target value The Leak mode is pneumatically identical to the Measure mode When either Pt Ps1 or Ps2 outputs 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 Ps1 output is in the Control mode the 6600 is actually attempting to achieve the Ps1 Target value The Ps1 control valve inside the 6600 is now connected to the Ps1 output and is actually increasing or decreasing the pressure to achieve and maintain the Target value The sample screen below shows the Ps1 mode as Measure M For an explanation of how to change the S
15. change the Ps1 Rate Target value is explained in section 3 2 2 21 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 13 Pt Mode This parameter is accessible in both 2 output and 3 output formats The Pt output can be in one of three modes Measure M Leak L or Control C In the Measure mode the pressure at the Pt output is simply being measured and displayed as the Actual value in the current Pt units The pressure is not being changed by the 6600 In this mode the Pt control valve inside the 6600 that is used to change the pressure at the Pt output is pneumatically isolated from the Pt output In the Measure mode the Pt Target value is meaningless since the 6600 is not trying to achieve any specific target value The Leak mode is pneumatically identical to the Measure mode When either Pt Ps1 or Ps2 outputs 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 Pt output is in the Control mode the 6600 is actually attempting to achieve the Pt Target value The Pt control valve inside the 6600 is now connected to the Pt output and is actually increasing or decreasing the pressure to achieve and maintain the Target value The sample screen below shows the Pt mode as Measure M For an explanation of how to change the Pt mode
16. key moves the cursor left The sample screen below shows the different Ps units with the cursor at Feet 2 output format Units knots Feet min Feet Actual M 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 into the new units and the target values will blink This is shown in the sample screen below where the units of inHg Psin have been selected 2 output format Units knots inHg min inHg Actual M 101 2 8 345 28 986 M Target 20 0 10 000 _29 054 The unit selection will not become effective until the GO key is pressed The 6600 will return to the old units if the CANCEL key is pressed Note The units change does not perform a conversion between the units of feet minute or meters minute to Ps1 inHg min or Ps1 mbar min 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 Please see Effect of Rate target value in section 3 2 2 above for more details Note The last effective Ps1 units are retained through a power On Off cycle Ps2 units Ps2 units can be selected only in the 3 output fo
17. of an aircraft The 6600 has three high accuracy transducers that measure pressure in the range of 0 to 38 inHg absolute on the Ps1 primary static output 0 to 38 inHg absolute on the Ps2 secondary static output and 0 to 60 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 10 C to 50 C The 6600 can be used by connecting only two outputs Pt and Ps1 or all three outputs Pt Ps1 Ps2 to an aircraft The 6600 is RVSM compliant The 6600 allows the user to control altitude in feet meters inHg or mbar Rate of change in feet minute meters minute inHg min or mbar min airspeed in knots mach mph and kmph The Ps2 port can be controlled in absolute units of feet meters inHg or mbar as well as differential Ps2 Ps1 units of differential inHg Dfin differential mbar Dfmb knots or kmph The 6600 also allows the user to control EPR on the Pt output The model 6600 features programmable limits on altitude airspeed mach number climb rate and static differential Ps2 Ps1 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 6600 a profile of set points to be controlled in a sequence Once such a profile ha
18. prepared to provide the serial number of the unit and nature of the mal function It may be possible to rectify certain mal functions without returning the product If it is necessary to return the product for repair or if the product needs to be sent in for routine calibration a Return Material Authorization RMA number must be obtained from Laversab and must be noted on the shipping documents The shipping documents must also include the following Your company name and return shipping address Telephone number and contact person Full description of any problems with the product Return shipping instructions along with your shipping account number SND PR Please ensure that the product is packed in a suitable shipping carton with adequate foam packing If a suitable foam packed shipping carton is not available please contact Laversab to arrange for suitable packing materials Laversab will not be responsible for damage to the product due to improper or inadequate packaging 11 WARNING If a product is shipped without adequate packaging ALL WARRANTIES will be VOID Ship product to LAVERSAB INC 505 GILLINGHAM LANE SUGAR LAND TX 77478 USA 72
19. selected in both 2 output and 3 output formats There are nine units to select from on the Pt output The units are knots Kts Mach Pt inHg Ptin Qc inHg Qcin Pt mbar Ptmb Qc mbar Qcmb miles per hour mph kilometers per hour kmph and Engine pressure ratio EPR EPR is defined as the ratio of Pt pressure to Ps pressure and is unit less Any of these units can be selected by pressing the Pt key in the Units section of the keypad The choices will appear on line 4 of the display four at a time The cursor is placed under the first choice The cursor position is indicated by the blinking unit name The arrow keys can be used to move the cursor The UP ARROW key moves the cursor right the DOWN ARROW key moves the cursor left 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 at knots indicated by blinking knots 30 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Ptunits kts Mach EPR Piin When the cursor is moved past Ptin line 4 of the display will look like this Gein vooo Pt units Mach EPR Ptin 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 Pimb Qcmb mph kmph Sele
20. used to ramp the Ps2 output when the Ps2 units are knots or kmph Please refer to Effects of Rate target value in section 3 2 2 for more details 44 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 Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 ENTER PROFILE NUMBER SD Profiles may be executed from both 2 output and 3 output formats During the execution of a profile it is possible to toggle between the two formats using the PREV SCREEN key 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 GO key to be pressed When the GO key is pressed the 6600 will execute the profile point i e it will change to Control mode and move towards the d
21. using Function 3 section 3 5 3 While in airspeed units the Pt output is not affected either by the altitude rate or by the engineering rate The Pt output also has five engineering units Pt inHg Qc inHg differential Pt mb Qc mb differential and EPR Pt divided by Ps1 While the Pt output is in any one of these engineering units its Rate of change is the engineering rate entered in the Rate target value If the engineering rate was entered as 4 000 inHg min then the Pt output will ramp towards its target value at 4 000 inHg min The Ps2 output has four engineering units inHg mbar Differential inHg Dfin and Differential mbar Dfmb The Ps2 output has two altitude units feet and meters The Ps2 output also has two airspeed units knots and kmph When the Ps output is in engineering units it will use the engineering rate i e 4 000 inHg min to ramp towards the target When the Ps2 output is in altitude units it will use the altitude rate i e 6000 ft min When the Ps2 output is in airspeed units it will use the Knots Rate section 3 5 3 to ramp towards the target Because of the distinct use of the engineering rate and the altitude rate it is recommended that the Rate target values be set in both engineering and altitude units The default values set at the factory are 4 000 inHg mm for the engineerin
22. 0 At present there are only three upper level operating screens Main Calibrate and Self test The PREVIOUS SCREEN key is also used to toggle the Main Screen between the 2 output format and the 3 output format Please refer to Section 3 2 for more details 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 DON le Oe DALER 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 Itis used to abort all changes that are flashing on the screen Itis 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 acknowledge 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 negati
23. 01 2 1006 M 1005 M Target 20 0 0 0 Ps2 units Dfin inHg Dfmb mbar When the cursor is moved past mbar line 4 of the display will look like this Ps2 units inHg Dfmb mbar feet jones 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 Ps2 units feet mtrs kts kmph 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 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 inHg have been selected 3 output format Units knots inHg Feet Actual M 101 2 28 849 M 1005 M Target 20 0 0 The unit selection will not become effective until the GO key is pressed The 6600 will return 33 to the old units if the CANCEL key is pressed Note The last effective Ps2 units are retained through a power On Off cycle Important Note If the Ps2 output is not being used then it is mandatory that the Ps2 output be in units of Differential inHg Dfin and the Ps2 target value be set to 0 000 Dfin This is NOT done automatically on power On It is the operator s responsibility to perform this function Failure to do so will result in improper operation of the unit
24. 1 and Ps2 pressures is 3 0 inHg The maximum value allowed for this limit is 30 0 inHg and the minimum is 1 0 inHg The factory default is 3 0 inHg 3 Max Mach This limit is usually set to the maximum allowable Mach number that the aircraft 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 The factory default 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 50 000 The factory default is 55 000 5 Min Feet This limit is usually set to the minimum altitude that the aircraft instruments can tolerate Itis 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 The factory default is 2000 6 Max Ft min This limit is usually set to the maximum rate of climb that the aircraft instruments can tolerate It is usually limited to the maximum indication on the Vertical Speed Indicator VSI on the aircraft The maximum value for this limit is 50 000 and the minimum is 100 A typical setting for this limit is 6000 The factory default is 6000 Important Note There is an additional limit for minimum knots This limit is set to 200 knots and limits the negative differential between Pt and Ps1 This limit is not adjustable by the user 43
25. 2 in Measure mode c Then disconnect hoses Only after the Pt system is reasonably leak tight should you proceed to the next step Leave the Pt target at 200 knots and set the Ps1 and Ps2 targets to 3000 feet above Ground Pt Ps1 and Ps2 outputs should all be in CONTROL mode Press GO When Pt Ps1 and Ps2 targets have been achieved put ONLY Ps1 into LEAK mode leaving Pt in CONTROL mode If the Ps1 port has a significant leak more than 100 feet min then first try and find the leak while the 6600 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 10 and continue to search for the leak If you need to disconnect ANY hoses on the aircraft or between the 6600 and the aircraft then a Go To Ground b Put Pt Ps1 and Ps2 in Measure mode c Then disconnect hoses Only after the Ps1 system is reasonably leak tight should you proceed to the next step 55 13 Repeat steps 9 through 12 for performing a leak check on the Ps2 output This needs to be done only if the Ps2 output is connected to the aircraft 14 Now that all three systems are reasonably leak tight start your checkout procedure for checking the instruments inside the aircraft At this point you may want to execute the appropriate Profile for your test Caution During your tests do not put Pt Ps1 or Ps2 outputs in MEASURE mode unless the aircraft is at Ground Use only the Control and L
26. 3 2 2 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 11 Ps2 Target value This is the value that you command the 6600 to achieve on the Ps2 output This parameter is accessible only in the 3 output format In the sample screen below the 6600 has been commanded to achieve a pressure of 10 Feet on the Ps2 output The Ps2 Target value is meaningful only when the Ps2 output is in the Control mode This is explained later in this section How to change the Ps2 Target value is explained in section 3 2 2 3 output format Units knots Feet Feet Actual M 101 2 1006 M 1005 M Target 20 0 10 0 Parameter 12 Rate Target value This is the value that you command the 6600 to achieve as the rate of change of pressure on the Ps1 output This parameter is accessible only in the 2 output format Caution This target value is also used for controlling the rate of change of pressure on the Ps2 output and under certain conditions also the rate of change of pressure on the Pt output For details please refer to Effects of Rate Target Value in section 3 2 2 In the sample screen below the 6600 has been commanded to achieve a rate of change of 3000 Feet min on the Ps1 and Ps2 outputs The Ps1 Rate Target value is meaningful only when the Ps1 and or Ps2 Pt output is in the Control mode This is explained later in this section How to
27. 6600 is powered ON the Ps2 mode will always be in MEASURE 36 The MEASURE to CONTROL transition When either of the Pt Ps1 or Ps2 outputs are changed from Measure or Leak to Control mode a sequence of events takes place that needs explaining Since the controlling portion of the 6600 is isolated from the output during Measure or Leak modes it will usually be at a pressure quite different from that at the output 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 6600 measures the pressure at the output shuts off the output from the internal 6600 pneumatics and then controls the pressure within the internal control mechanism to match the pressure at the output Once this is done the 6600 controlling section is connected to the output This process is termed as Equalization While the 6600 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 2 output format Units knots Feet min Feet Actual C EQZN EQZN EQZN C Target 20 0 3000 0 3 output format Units knots Feet Feet Actual C EQZN EQZN C EQZN C Target 20 0 0 0 Once the Equalization process is complete the Actual val
28. A profile is a set of up to 50 points that tell the 6600 what you would want it to do at each point Each point consists of 10 parameters 1 Pt units 2 Pt mode 3 Pt target value 4 Ps1 units 5 Ps1 mode 6 Ps1 target value 7 Rate target value 8 Ps2 units 9 Ps2 mode and 10 Ps2 target value These 10 parameters are defined by you in the Excel program A total of 15 such profiles can reside in the 6600 at any time Each profile is identified by a number between 1 to 15 and also a name which can have up to 12 characters The profile SECTION 4 PROFILES 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 H d 1 Profile 2 Sample 3 0 3 knots Control 100 0 Feet Control 0 6000 Dfin Control 0 100 4 knots Control 200 0 Feet Control 0 6000 Dfin Control 0 100 5 knots Leak 200 0 Feet Control 0 6000 Dfin Control 0 100 6 knots Control 100 0 Feet Control 1000 6000 Dfin Control 0 200 7 knots Control 200 0 Feet Control 5000 6000 Dfin Control 0 200 8 knots Control 300 0 Feet Control 10000 6000 Dfin Control 0 200 9 knots Control 100 0 Feet Control 18000 6000 Dfin Control 0 200 10 knots Control 100 0 Feet Leak 18000 6000 Dfin Control 0 200 11 k
29. 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 SOURCE TABLE OF CONTENTS Warranty EO SN ede i Copyright noticedisclaimer 1245 NT TH In 1000000 ia ii Reyiston History sanserne rr AA R AAR KATAA ANRA iii Warin so iv Section 1 Prodiit ee ERUEN RE RE REE FE DERE RE N TE REE DERE BE DERE BENE PE DERE RE RE SERENE FEJET 1 Section 2 Controls and Connections o ceecceccesscccsscccesscecssscccescecescecsssecesssecessceensnees 2 2 Man UAE TOD PINEN sr 2 22 Remote Unit Top Panel vasse GAEL et 10 Section 3 Understanding the 6600 sao dosatoltndynitteidleillultnaleadtsalisattsaltsaG bi pores 15 Ord Start UP spess e a ahn nha n Rn ERREEN 13 3 2 Mam Operating SAeen gerisinin e e E E RRE 15 3 2 1 Displayed P rameterS r so byocviit sa subsAdVugbrralltgit 6l g9 BSOIBSS BAN Gi5 841 801803028 u08 18 3 2 2 Target Value Entry sscisanitiiisitiinsiniiennnnnnuuinnninienirnininnnninvae 25 3 2 3 Units Selection G SH ng ng renere rrnnnee 30 3 24 Mode Selection _ QC Gv ng cry 34 Oto Leak Screen uvant fue ta ae 38 SIA Self Test Screen 12 6 eee sacs on 100014 14g01024142 0162646014411 secede 004414 43464 1611 tee 40 3 5 Function Select Screen _
30. Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Note The Actual values for Ps2 rate and Pt rate are not displayed any where in the 6600 since they are not used as a reference for checking any specific instrument or function on the aircraft The Ps1 rate however is used as a reference for checking the VSI on the aircraft and is therefore displayed Parameter 9 Pt Target value This is the value that you command the 6600 to achieve on the Pt output This parameter is accessible in both 2 output and 3 output formats In the sample screen below the 6600 has been commanded to achieve a pressure of 20 0 knots on the Pt output The Pt Target value is meaningful only when the Pt output is in the Control mode This is explained later in this section How to change the Pt Target value is explained in section 3 2 2 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 20 Parameter 10 Ps1 Target value This is the value that you command the 6600 to achieve on the Ps1 output This parameter is accessible in both 2 output and 3 output formats In the sample screen below the 6600 has been commanded to achieve a pressure of 0 Feet on the Ps1 output The Ps1 Target value is meaningful only when the Ps1 output is in the Control mode This is explained later in this section How to change the Ps1 Target value is explained in section
31. Ground at 6000 ft min Since Ps2 is in Dfin the actual Dfin target value is 0 000 since both Ps1 and Ps2 are achieving the same pressure Ground Row 14 point 12 puts Pt Ps1 and Ps2 into Measure mode 4 2 CREATING A PROFILE 1 2 3 g 8 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 15 that you would like this profile to be saved as in the 6600 Do not change row 2 3rd cell or 4t 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 Rate target value has the same number of digits after decimal as the Ps1 value in the same units Pt un
32. ION 6 HEIGHT CORRECTION This function allows the user to enter the difference in height between the 6600 and Ground level This value should normally be 0 unless the 6600 is elevated to a height of more than 3 feet above ground level A value of between 0 and 50 feet can be entered The screen appears as shown below Current Height Correction 0 feet New Height Correction HE feet Enter new height 0 50 or press CANCEL 3 57 FUNCTION 7 SET GROUND The Set Ground function is used to indicate to the 6600 the ambient Ground pressure Before connecting the 6600 to the aircraft just after the Self Test has been performed it is mandatory that this function be invoked All three ports Pt Ps1 and Ps2 must still be open to ambient when using this function When the GO key is pressed in the screen shown below the 6600 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 When the GO key is pressed the 6600 responds with Thank You as an indication that Ground has been set It will then return to the Main screen If the CANCEL key is pressed the display will simply revert back to the Main screen 46 3 5 8 FUNCTION 8 GO TO GROUND The Go To Ground function is used to bring the aircraft back down to Ground The target value f
33. Ps2 mode Ps2 target value TOqAmmgn gt In the sample profile Row 3 which is the first point in the profile tells the 6600 to go in Control mode to 100 knots on the Pt output in Control mode to 0 feet at 6000 feet min on the Ps1 output and in Control mode to a value of 0 100 inHg differential Ps2 Ps1 Dfin on the Ps2 output Row 4 point 2 makes the 6600 go to 200 knots and 0 feet at 6000 ft min and 0 100 inHg differential on Ps2 Row 5 point 3 puts Pt into Leak mode while still keeping Ps1 and Ps2 in Control at 0 feet and 0 100 inHg diff Row 6 point 4 puts the Pt back into Control and takes it down to 100 knots Ps1 is simultaneously moved up to 1000 feet at 6000 ft min and Ps2 is changed to 0 200 Dfin Row 7 point 5 takes Pt up to 200 knots Ps1 up to 5000 feet and Ps2 to 0 200 Dfin Row 8 point 6 takes Pt up to 300 knots Ps1 up to 10 000 feet and Ps2 to 0 2000 Dfin Row 9 point 7 takes Pt down to 100 knots Ps1 up to 18 000 feet and Ps2 to 0 200 Dfin Row 10 point 8 keeps Pt at 100 knots and puts Ps1 into Leak mode while at 18 000 feet Ps2 is held at 0 200 Dfin Row 11 point 9 keeps Pt at 100 knots and ramps Ps1 in Control mode to 30 000 feet at 6000 ft min Ps2 is also changed to 0 300 Dfin 49 Row 12 point 10 keeps Pt at 100 knots and ramps Ps to 50 000 feet at 6000 ft min while Ps2 is maintained at 0 300 Dfin Row 13 point 11 takes Pt down to 20 knots and ramps Ps1 and Ps2 back to
34. Pt leaks down to below 100 knots and leak has not yet been found then CANCEL out of Leak Screen allow Pt to recharge to 200 knots then change Pt back into Leak Mode and continue searching for the leak When Pitot is Leak tight CANCEL out of Leak Screen and proceed to step 3 4 Leak check Setup Ps1 Mode Leak L flashing wait for Ps1 to stabilize at target GO If Ps1 cannot achieve target or if Ps1 Leak exceeds 2000 ft min warning message then GO TO GROUND Go to MEASURE on Pt Ps1 and Ps2 then find the leak GO TO GROUND then go back to Step 3 4 If Ps1 leaks down more than 1000 feet and leak has not yet been found then CANCEL out of Leak Screen allow Ps1 to recharge to target then change Ps1 back into Leak Mode and continue searching for the leak When Ps1 is Leak tight CANCEL out of Leak Screen and proceed to step 3 5 Leak check a Only if the Ps2 output is connected to the aircraft repeat 3 4 for the Ps2 output leak check Once Ps2 is leak tight proceed to step 4 STEP 4 CHECKOUT AIRCRAFT INSTRUMENTS 4 1 Run Profile F 4 or execute your Test Procedure to checkout cockpit instruments 4 2 GO TO GROUND at the end of Profile or Test Procedure 4 3 Turn off 6600 then disconnect hoses Figure 5 1 S SECTION 6 CALIBRATION 6 1 EQUIPMENT This calibration procedure requires the following equipment 1 Vacuum pump 2 Pressure supply of clean dry air Zero Air preferred at 35 p
35. REEN key view or change the Ps1 rate in the 2 output format then toggle back to the 3 output format using the PREV SCREEN key again The best indication that the screen is in the 3 output format is that the middle vertical section of the display will NOT have Rate units indicating per minute i e the units displayed in the middle section will not indicate min Another indication is that in the middle vertical section the Mode for Ps2 will be displayed to the right of the Actual value In the sample display above the Ps2 Mode is indicated as M The following sub sections explain the various uses of the Main Screen 16 WN OY OE ROS Nr 2 output format N Units knots Feet min Feet Actual 5 2 0 1005 7 Target 20 0 3000 EN 3 output format a Gs Units ee Feet Feet Actual M ie M 1005 M Target Ra 0 Pt units 9 Pt Target value Ps1 units 10 Ps1 Target value Ps2 units 3 output format only 11 Ps2 Target value 3 output format only Ps1 Rate units 2 output format only 12 Rate Target value 2 output format only Pt Actual value 13 Ptmode Ps1 Actual value 14 Ps1 mode Ps2 Actual value 3 output format only 15 Ps2 mode 3 output format only Ps1 Rate Actual value 2 output format only Figure 3 2 3 2 1 DISPLAYED PARAMETERS There are 15 basic parameters of importance while using the 6600 Each of these parameters is displayed on the Main Screen either on th
36. To buy sell rent or trade in this product please click on the link below http www avionteg com Laversab 6600 Automated Pitot Static Tester aspx AvionTEq OBOBODOBOSBOG Test with full trust www avionteg com JN AVERSAB MODEL 6600 Rev B4 USER S MANUAL LAVERSABINC 505 GILLINGHAM LANE SUGAR LAND TX 77478 281 325 8300 FAX 281 325 8399 Email aservice laversab com Document Number 9051 REV B4 Date June 07 2011 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 three years from date of sale Liability of Laversab Inc under this warranty shall be limited to replacing free of charge FOB Houston Texas any such parts proving defective within the period of this warranty but Laversab Inc 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 i
37. ach of the three target values can be jogged up or down in small increments by using the arrow keys This is done to help the operator achieve a perfect reading on the instrument in the aircraft by bumping the set point in small increments Another application of the jog feature is while testing the Mach Over speed warning on the aircraft where the airspeed is incremented in small steps until the warning alarm sounds To jog a target value select the value by pressing the appropriate target value key and then use the 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 increment amount for each jog is shown below for the different units of each target value Pt target value Ps2 target value Ps1 target value Rate target value Units Increment Units Increment Units Increment Units Increment knots 1 Feet 1 Feet 1 Feet min 10 Mach 0 001 meters 1 meters 1 meters min 10 mph 1 inHg 0 001 inHg 0 001 inHg min 0 01 kmph 1 mbar 0 01 mbar 0 01 mbar min 0 1 Pt inHg 0 001 Diff inHg 0 001 Qc inHg 0 001 Diff mbar 0 01 Pt mbar 0 01 knots 1 Qc mbar 0 01 kmph 1 EPR 0 001 3 23 UNITS SELECTION Pt Units Pt units may be
38. and Vacuum pump assembly Ps1 and Ps2 pressure control system Pt pressure control system SP Sr ee To start the Self Test please make sure that at least one port of each of the Pt Ps1 and Ps2 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 Ps1 Ps2 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 40 Pump section OK Ps1 Ps2 control system OK Pt control system OK Tests successful After the tests have been completed successfully press the CANCEL key to return to the Main Operating Screen If any of the tests fail then note the failure turn OFF the unit and contact the factory 3 5 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 OL Sh VOR From the Main Screen either in the 2 output or 3 output format pressing the Function Select key on the keypad allows you to go into the function select screen which is shown below Select function DN ARROW for functions 4 to 8 1 View limits 2 Set limits 3 Set knots rate now at 500 0 kts min If you want to
39. and left in the blinking state before pressing GO This will enable the 6600 to start moving to the new targets on all outputs simultaneously when the GO key is pressed Ps1 target value The Ps1 target value can be entered both in the 2 output and 3 output formats For entering Ps1 target values press the Ps1 ALTITUDE key After the key is pressed the 2 output format will appear as shown below 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 Now follow the same process for entering the value as described above in Numeric Value Entry Note The last effective Ps1 target value is retained through a power On Off cycle Ps2 target value The Ps2 target value can be entered only in the 3 output format Change the Main Screen to the 3 output format using the PREV SCREEN key In the 3 output format the middle vertical section will show the units for Ps2 and will NOT indicate min After the screen shows the 3 output format press the Ps2 RATE key to enter the Ps2 target value After the key is pressed the 3 output format will appear as shown below 26 3 output format Units knots Feet Feet Actual M 101 2 1006 M 1005 M Target 20 0 ma 0 Now follow the same process for entering the value as described above in Numeric Value Entry Note The last effective Ps2 target value is retained through a power On Off cycle Important Note If the Ps2 output is not being u
40. ast one of these ports must be connected through a hose to the Pa2 port of the smart probe on the aircraft The hose must be connected after performing the Self Test on the 6600 The hose once connected must not be disconnected while the aircraft Static system is not at Ground level An unused port must remain closed WARNING If the Ps2 output is not being used then it must be capped off closed Caution Do not connect this output to the aircraft before performing the Self Test Caution Do not disconnect this output from the aircraft unless the aircraft s Pitot Static system is at Ground level and the tester is OFF 7 Pitot ports Pt The Pt output is provided on two ports that are internally connected Both ports have 4 AN fittings At least one of these ports must be connected through a hose to the Pitot port on the aircraft The hose must be connected after performing the Self Test on the 6600 The hose once connected must not be disconnected while the aircraft Pitot system is not at Ground level An unused port must remain closed Caution Do not connect this output to the aircraft before performing the Self Test Caution Do not disconnect this output from the aircraft unless the aircraft s Pitot Static system is at Ground level and the tester is OFF 8 R5232 interface connector This connector is accessed by opening the Interface Connectors access panel The connector is a standard DB 9
41. bring up the 2 output format If the Leak screen is entered from the 3 output format of the Main screen then pressing CANCEL in the Leak screen will bring up the 3 output format 39 3 4 SELF TEST SCREEN As part of the start up procedure it is recommended that a Self Test be performed on the 6600 Before performing the Self Test you must follow the start up procedure explained in section 3 1 The Main Operating Screen must be displayed on the Remote unit There should be no errors displayed on line 4 of the display 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 the NEXT SCREEN key two times The display will show the screen shown below SELF TESTS Please vent Pt Ps1 and Ps2 ports to ambient then press GO 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 subsystems System ROM System RAM Ps1 and Ps2 pressure measurement systems Pt pressure measurement system Pressure
42. ct 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 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 2 output format 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 6600 will return to the old units if the CANCEL key is pressed Note It is important to note that the differential units of knots Mach mph kmph Qc inHg and Qc mbar always use Ps1 as the reference to determine the differential Ps2 is never used as a reference Note The last effective Pt units are retained through a power On Off cycle Ps1 Units Ps1 units may be selected in both 2 output and 3 output formats There are four Ps units to choose from Feet Ps inHg Psin meters mtrs and mbar Psmb When a particular unit is selected the units for Rate automatically changes to selected units minute Any of these units can be selected by pressing the Ps1 key in the Units section of the 31 keypad Line 4 of the display will show all four units with the cursor at Feet indicated by Feet blinking The arrow keys can be used to move the cursor The UP ARROW key moves the cursor right the DOWN ARROW
43. de between Measure Leak and Control please refer to section 3 2 4 23 3 output format Units Actual Target knots M 101 2 20 0 Feet 1006 M 10 Feet 1005 M 0 Error Messages The Main screen is also used to display error conditions as they occur The errors are displayed on the last 4 line of the display as shown below Errors are shown on the 4th line on both 2 output and 3 output formats 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Error 5 Pt target exceeds knots 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 This is done identically on both 2 output and 3 output formats 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 next point in the profile eliminating the need to perform a lot of data entry 2 output format 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 The Main operating screen will be used almost all the time during normal operation for
44. e 2 output format or on the 3 output format The 15 parameters are indicated in the 2 output and 3 output formats shown in Figure 3 2 above Each parameter is explained in detail below and highlighted in a sample screen Parameter 1 Pt Units Unit of measurement for displaying the Pt output This parameter is accessible in both 2 output and 3 output formats Normally the Pt unit used is Knots for displaying airspeed Other possible units for displaying the Pt output are shown in section 3 2 3 which also explains how to select a particular unit The currently selected Pt 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 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 2 Ps1 Units Unit of measurement for displaying the Ps1 output This parameter is accessible in both 2 output and 3 output formats Normally the Ps1 unit used is Feet for displaying altitude Other possible units for displaying the Ps1 output are shown in section 3 2 3 which also explains how to select a particular unit The currently selected Ps1 unit is shown on the first line of the display as shown below The two values 1005 and 0 that appear below it are in these units 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter3 Ps2 Units Unit of mea
45. e screen shown below the current pressure at the Pt output is 101 2 knots This value is updated every 0 25 seconds 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 6 Ps1 Actual value This is the current pressure measured at the Ps1 output displayed in the current units This parameter is accessible in both 2 output and 3 output formats In the sample screen shown below the current pressure at the Ps1 output is 1005 Feet This value is updated every 0 25 seconds 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 19 Parameter 7 Ps2 Actual value This is the current pressure measured at the Ps2 output displayed in the current units This parameter is accessible only in the 3 output format In the sample screen shown below the current pressure at the Ps2 output is 1006 Feet This value is updated every 0 25 seconds 3 output format Units knots Feet Feet Actual M 101 2 1006 M 1005 M Target 20 0 0 0 Parameter 8 Ps1 Rate Actual value This is the current rate of change of pressure measured at the Ps1 output displayed in the current units This parameter is accessible only on the 2 output format 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 2 output format Units knots
46. ead current Ps2 mode DM n W Set Ps2 mode to Measure 1 Leak 2 Control 3 ER R Read current error 0 if no error L1 R Read max knots limit L1 n W Set max knots limit L2 R Read max differential limit in inHg L2 n W Set max differential limit in inHg L3 R Read max Mach limit L3 n W Set max Mach limit L4 R Read max altitude limit L4 n W Set max altitude limit L5 R Read min altitude limit L5 n W Set min altitude limit L6 R Read max altitude rate limit L6 n W Set max altitude rate limit KR R Read current Knots rate KR n W Set Knots rate ton PF R Read current profile point PF n W Set current profile point to n xx xx 67 Command Type GO W CN W IE R IE n W HC R HC n W C1 R C1 n W C2 R C2 n W C3 R C3 n W C4 R C4 n W CC W SF 0 R SF 1 W SG W GG W F3 W F2 W Description Command to execute current settings Command to cancel current settings Read current IEEE address Set IEEE address to n Read current Height Correction Set Height Correction to n Read Pt vacuum calibration point Set Pt vacuum calibration point Read Pt full scale calibration point Set Pt full scale calibration point Read Ps1 and Ps2 vacuum calibration point Set Ps1 and Ps2 vacuum calibration point Read Ps1 and Ps2 full scale calibration point Set Ps1 and Ps2 full scale calibration point Activate new calibration points after new values have been entered Read the status of the Self Test last performed Start the Self Test Set Ground
47. eak modes If the Ps2 output is not connected to the aircraft then the Ps2 output must be in units of Dfin the Ps2 target value must be 0 000 and Ps2 must always be in Control mode 15 After you finish the last point of your test procedure select Function 8 Go to Ground If you are executing a profile this should already be part of your profile The targets will get set to 20 knots for Pt and 185 feet Your Ground for Ps1 and Ps2 16 After the targets have been achieved set Pt Ps1 and Ps2 outputs to MEASURE mode This should be part of your profile Alternately you can simply turn OFF the 6600 17 Turn OFF the 6600 18 Disconnect the hoses from the aircraft and from the 6600 During your test procedure if you lose power the 6600 will maintain the pressure When power comes back on the 6600 and the aircraft will be at the same pressure as before except for pressure lost due to leaks in the system If the 6600 behaves erratically for whatever reason turn OFF the 6600 using the ON OFF switch on the Remote unit Turn the unit back ON after 30 seconds and attempt to use the 6600 again The 6600 is capable of overcoming substantial leaks in the system It is not capable of overcoming extremely large leaks Therefore it is essential that the system be reasonably leak tight before taking the aircraft to higher altitude or airspeed During a leak check a leak of more than 2000 feet min either on the Psl or Ps2 outputs or a leak o
48. en 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 in either 2 output format or 3 output format 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 3 2 MAIN OPERATING SCREEN Most of the operation of the 6600 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 Main Screen can be toggled between the 2 ouput format and 3 output format using the PREV SCREEN key Main Screen 2 output format In the 2 output format information pertaining only to Pt and Ps1 is displayed Although all three outputs of the 6600 are always active if only the Pt and Ps1 outputs are connected to the aircraft then the Main Screen should be in the 2 output format The 2 output format appears as shown below Main Screen 2 output format Units knots Feet min Feet Actual M 52 0 1005 M Target 20 0 3000 0 Pt Ps1 Rate of change Ps1 As shown above in the sample 2 ouput format information is divided into three vertical sections The left section shows information for the Pt output the right section shows information for the Ps1 output and the middle section shows information for the rate of change of the Ps1 o
49. epeatability check at 38 inHg Take the pressure down to about 5 inHg and then back up to 38 000 inHg Wait for 2 minutes then note the Actual value on Ps1 as R1 Again take the pressure down to about 5 inHg and then back up to 38 000 inHg Wait for 2 minutes then note the Actual value on Ps1 as R2 The difference between R1 and R2 must not exceed 0 002 inHg 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 note the actual values for Ps1 and Ps2 on the 6600 These are the As Found readings for the Vacuum Test Point please see Fig 6 1 below They will indicate the zero drift since the previous calibration Step 4 Generate a pressure of 38 000 inHg absolute allow the pressure to stabilize for 2 minutes and note the actual values for Ps1 and Ps2 on the 6600 These are the As Found readings for the Full Scale Test Point please see Fig 6 1 below They will indicate the zero plus slope drift since the previous calibration Leave the pressure at 38 000 inHg while you perform the next step If you do not wish to make a calibration adjustment but just want to verify the accuracy of the 6600 please skip to Step 10 Step 5 To make a calibration adjustment for the Ps1 and Ps2 outputs on the 6600 move to the the CALIBRATION screen using the NEXT SCREEN key and enter the password T
50. esired targets Units knots Feet min Feet Actual C 101 2 3500 1005 C Target 100 0 5000 1000 ENTER PROFILE NUMBER 2 1 CJ1 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 and line 4 will be cleared 45 3 5 5 FUNCTION 5 SETUP PROFILES This function is used to load profiles into the 6600 from a PC A full explanation of how to load profiles into the 6600 is provided in Section 4 The following screen will come up when Function 5 is selected PROFILE SETUP Please stay in this screen and download One or more profiles through the RS232 interface On completion press GO Once the profiles have been loaded press GO to exit this function 3 5 6 FUNCT
51. f more than 50 knots min on the Pt output will immediately cause the 6600 to exit the Leak screen and go back into Control mode automatically A message will indicate that a large leak exists Go back to Ground and go through the leak test process shown above to find and fix the leak before proceeding further It may be helpful to keep a copy of the procedure shown in Figure 5 1 with the 6600 to assist the operator while using the 6600 56 6600 TYPICAL USE STEP 0 PREP AIRCRAFT 0 1 Con nect adapters and hoses to the aircraft tape up all unused ports on the aircraft 0 2 Leave hose ends near the 6600 but DO NOT connect to 6600 yet STEP 1 Open at least one each of Pt Ps1 and Ps2 ports on 6600 to ambient Close all Vent valves 1 1 SELF TEST 1 2 Turn ON 6600 and run SELF TEST NEXT SCREEN twice GO STEP 2 SET GROUND With ports still open SET GROUND F 7 GO 2 1 STEP 3 LOW LEVEL LEAK CHECK 3 1 3 2 3 3 Con GO nect hoses from aircraft to 6600 Close all unused ports on the 6600 TO GROUND F 8 GO Pitot Leak check a Airspeed Target 200 knots GO Ps1 a Pt 200 knots Ps1 Ps2 3000 feet above Ground GO b c e Ps2 Setup Pt Mode Leak L flashing wait for Pt to stabilize at 200 knots GO If Pt cannot achieve 200 knots or if Pt Leak exceeds 50 kts min warning message then GO TO GROUND Go to MEASURE on Pt Ps1 and Ps2 then find the leak Go back to Step 3 2 If
52. fects the rate of change of Ps1 Ps2 and also sometimes Pt The Rate target value can be entered in four different units depending on the selected units for Ps1 The four Ps1 units are feet meters inHg and mbar Feet and meters are considered as altitude units InHg and mbar are considered as engineering units The 6600 maintains two distinct Rate target values for altitude units and engineering units When a Rate target value is entered as 6000 feet min it is automatically converted to 1828 8 meters min But it is not converted to inHg min or mbar min Conversely when a Rate target value is entered as 4 000 inHg min it is automatically converted to 135 46 mbar min But it is not converted to feet min or meters min The 6600 distinctly maintains two Rate target values of 6000 feet min for altitude units and 4 000 inHg min for engineering units If Ps1 is in Control mode and the units for Ps1 are altitude units then the 6600 will ramp towards the Ps1 target using the Rate target value in altitude units i e 6000 feet min If Ps1 is in engineering units then the 6600 will ramp towards the Ps1 target using the Rate target value in engineering units i e 4 000 inHg min The Pt output has four airspeed units knots Mach mph kmph When the Pt output is in one of these four airspeed units the Rate of change of the Pt output is controlled by the Knots Rate which is setup
53. 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 6600 is also possible through this interface Figure 2 2 shows the RS232 connector with the panel removed For more details on downloading profiles please refer to Section 4 For more details on communication with the 6600 please refer to Section 8 9 IEEE 488 interface connector This feature is currently not available on the 6600 10 Encoder interface connector This feature is currently not available on the 6600 11 Primary Static Vent Ps1 Vent In the event that the 6600 is in operable due to a malfunction or due to loss of power it is possible to vent the Static system manually This is done using the metering valve labeled Ps1 Vent This valve is a positive shut off valve Opening this valve slowly will vent the Static output of the 6600 to ambient pressure While venting care must be taken to ensure that the maximum climb rate of the aircraft connected to the tester is not exceeded The Secondary Static Ps2 and Pitot Pt ports are referenced to the Primary Static Ps1 port The Ps2 Vent and Pt Vent valves are used to cross bleed to the Primary Static Ps1 ports Therefore the manual vent valves must be opened in sequence First open the Ps2 Vent val
54. 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 6600 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 All 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 6600 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 select COM1 Select OK A new dialog box will open named Com1 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 6600 Hyperterminal window Select File Select Properties A new dialog box 6600 Properties appears Select the Settings tab In the Emulation menu select ANSI Select OK Now you are back in the 6600 Hyperterminal window Select File select Save Close this window A warning appears select Yes Hyperterminal is now setup To verify that the 6600 file is setup in Hyperterminal select All Programs from the
55. file 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 6600 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 3 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 4 The ARROW keys may be used 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 The PREV SCREEN key may be used to toggle the Main screen between the 2 output and 3 output formats 5 No other keys are effective Changing units or modes or target values will req
56. g rate and 3000 feet min for the altitude rate The default value for the Knots Rate is 500 knots min To summarize the effects of the Rate target value on Ps1 Ps2 and Pt let us assume that the factory defaults shown above are in effect Then the following table shows which Rate value will be effective depending on the units selected for each output 28 Pt output Ps2 output Ps1 output Units Rate Units Rate Units Rate knots 500 knots min Feet 3000 feet min Feet 3000 feet min Mach 500 knots min meters 3000 feet min meters 3000 feet min mph 500 knots min inHg 4 000 inHg min inHg 4 000 inHg min kmph 500 knots min mbar 4 000 inHg min mbar 4 000 inHg min Pt inHg 4 000 inHg min Diff inHg 4 000 inHg min Qc inHg 4 000 inHg min Diff mbar 4 000 inHg min Pt mbar 4 000 inHg min knots 500 knots min Qc mbar 4 000 inHg min kmph 500 knots min EPR 4 000 inHg min Limitations of engineering rate The target engineering rate in inHg min can be set to any value between 0 and 30 000 inHg min However this rate is limited by the Limit for Maximum Altitude Rate Max Ft min section 3 5 2 While the Ps1 or Ps2 outputs are being ramped towards the target if the engineering rate translates to an altitude rate which exceeds the Limit of Max Ft min then the effective target Rate will be the Max Ft min Limit value For example assume that the engineeri
57. he calibration screen appears as follows 59 CALIBRATION PtinHg PsinHg Vacuum 1 FS 2 4 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 It is the As Left Full Scale Test Point for Ps1 and Ps2 in Fig 6 1 If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times 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 It is the As Left Vacuum Test Point for Ps1 and Ps2 in Fig 6 1 If you make an error while entering data press CLR Do not press CANCEL You may re enter the value any number of times Step 8 On the keypad of the remote unit press PREV SCREEN The display will return to the Main Screen WARNING If you press CANCEL the calibration adjustment will become void Step 9 The calibration adjustment is now complete for the Ps1 and Ps2 outputs Proceed to the next step to verify the calibration Step 10 Verify the calibration by generating pressures in approximately 10 increments and noting the ac
58. his section assumes that the user has read Section 3 and understood the functioning of the 6600 Please do not follow the sequence shown below without first reading Section 3 The following steps show a typical use of the 6600 for checking aircraft instruments 1 10 11 12 Turn on the 6600 and perform the Self Test NEXT SCREEN two times Hoses should be disconnected and at least one Pt one Ps1 and one Ps2 port must be open to ambient Pt Ps1 and Ps2 Vent valves must be closed With ports still open to ambient Set Ground Function 7 Connect hoses between the 6600 outputs and the aircraft Plug all unused Pt Ps1 and Ps2 ports on the 6600 Plug all unused Pitot or Static ports on the aircraft Select Function 8 Go To Ground This will put Pt Ps1 and Ps2 into Control mode with targets of 20 knots for Pt and 185 feet assuming your Ground was 185 ft for Ps1 and Ps2 Wait for the targets to be achieved Set the Pt target to 200 knots and GO When Pt achieves 200 knots put ONLY Pt into Leak mode leave Ps1 and Ps2 in Control mode If Pt has a significant leak more than 5 knots min then first try and find the leak while the 6600 is in the Leak screen If you lose all airspeed while searching for the leak cancel out of the Leak screen and go back to Step 6 and continue to search for the leak If you need to disconnect ANY hoses on the aircraft or between the 6600 and the aircraft then a Go To Ground b Put Pt Ps1 and Ps
59. its Digits after Ps1 units Digits after Ps2 units Digits after decimal decimal decimal Knots 1 Feet 0 Feet 0 Mach 3 Ps inHg 3 Ps inHg 3 EPR 3 Meters 1 Meters 1 Pt inHg 3 Ps mb 2 Ps mb 2 Qc inHg 3 Dfin 3 Pt mb 2 Dfmb 2 Qc mb 2 knots 1 Mph 1 mph 1 Kmph 1 Check the values units and modes in your profile to ensure they are 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 50 10 example if you want to perform a Leak at 18 000 feet then you must have one point in Control mode which takes the Ps1 port to 18 000 feet followed by another point where the Ps1 port is put into Leak mode at 18 000 feet 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
60. lected independently for the Ps1 Ps2 and Pt outputs Pressing the Pt Mode Ps1 Mode or Ps2 Mode keys brings up the selection of modes for the corresponding output 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 For more information on Mode Selection please refer to Section 3 2 4 12 SECTION 3 UNDERSTANDING THE 6600 Note Pt Pitot Ps1 Primary Static and Ps2 Secondary Static The 6600 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 This section will explain how to use the 6600 to perform these functions 3 1 START UP Step 1 Check the ON OFF switch on the Remote unit and make sure it is OFF Step 2 Remove the protective caps from one each of the Pt Ps1 and Ps2 outputs on the main unit DO NOT connect any hoses to the aircraft yet Make certain that the outputs are open to ambient Close the Pt Ps1 and Ps2 Vent valves Step 3 Connect the power cable from the AC INPUT connector on the main unit to a suitable AC supply Step 4 On the Main unit turn the AC On Off switch ON On the Remote unit turn the ON OFF switch ON The 6600 will turn ON and the Remote unit will turn ON The display will briefly show the sign on scree
61. maintenance requirements 64 SECTION 8 COMMUNICATION INTERFACE The model 6600 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 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 Pin 2 Transmit TX Pin 3 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 6600 are two letter commands Some commands are used both to read and write data Others are used only to read data back from the 6600 If a command is used to write data then it is followed by the equal sign followed by the data to be written Each command must be terminated by a carriage return lt CR gt Each value returned by the 6600 is terminated by a lt CR gt No hardware or software handshaking is provided Commands are serviced by the 6600 every 250 msec A string of several commands may be sent to the 6600 at any time The maximum string length must not exceed 32 characters For proper operation it is recommended that not more than 3 com
62. mands be sent every 250 msec A list of all commands is shown below 65 Command Type PA RA SA DA PT PT n RT RT n ST ST n DT DT n PJ n RJ n SJ n DJ n PU PU n SU SU n DU 3 7 z z z mm Description Actual Pt value in current units Actual Rate value in current units Actual Ps1 value in current units Actual Ps2 value in current units Read current Pt target value Set Pt target value ton Read current Rate target value Set Rate target value to n Read current Ps1 target value Set Ps1 target value ton Read current Ps2 target value Set Ps2 target value ton 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 Ps1 target Jog up n 0 or down n 1 Ps2 target Read current Pt units value returned 1 to 9 Set Pt units as per following n units 1 knots 2 mach 3 Pt inHg 4 Qc inHg 5 Pt mb 6 Qc mb 7 mph 8 kmph 9 EPR Read current Ps1 units value returned 1 to 4 Set Ps1 units as follows n units 1 Feet 2 inHg 3 meters 4 mbar Read current Ps2 units value returned 1 to 8 66 Command Type Description DU n W Set Ps2 units as follows n units 1 Diff inHg 2 inHg 3 Diff mbar 4 mbar 5 Feet 6 meters 7 knots 8 kmph PM R Read current Pt mode PM n W Set Pt mode to Measure 1 Leak 2 Control 3 SM R Read current Ps mode SM n W Set Ps1 mode to Measure 1 Leak 2 Control 3 DM R R
63. n 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 The 4th line should be blank Before actually using the 6600 to perform certain tasks it is important to understand how to use the Remote unit to make the 6600 do what you want This section explains everything about the information that you see on the Remote unit and what it means and 13 Prev Screen 2 output 3 output Leak mode Leak format format Screen Main Screen Function Select Function Select Screens 2 View Limits Password Change Limits 3 Change knots rate 4 Execute profile Return to Main Setup Profile Height Correctio Set Ground Go to Ground g 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 6600 actually operates Interaction with the 6600 is done through several different screens that are displayed on the Remote unit All 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 6600 The Calibrate scre
64. ncorporated 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 agrees to use its best efforts to have original suppliers make good their warranties COPYRIGHT NOTICE Copyright c 2007 onward by Laversab Inc All rights reserved The content of this manual may not be reproduced in any form by any means in part or in whole without the prior written permission of Laversab Inc 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 9051 Rev A 12 20 2007 6600 User s Manual 9051 Rev B 04 20 2008 6600 Rev B User s Manual 9051 Rev B1 12 09 2009 6600 Rev B1 User s Manual 9051 Rev B2 04 27 2010 6600 Rev B2 User s Manual 9051 Rev B3 02 23 2011 6600 Rev B3 User s Manual 9051 Rev B4 06 07 2011 6600 Rev B4 User s Manual WARNING I THE 6600 USES LINE VOLTAGES FOR ITS OPERATION WHICH ARE POTENTIALLY DANGEROUS IMPROPER OPERATION OF THIS EQUIPMENT MAY RESULT IN PERSONAL INJURY OR LOSS OF LIFE HENCE THE EQUIPMENT DESCRIBED IN THIS MANUAL SHOULD
65. ng rate is set to 4 000 inHg min and the Max Ft min limit is set to 10 000 ft min Assume that the Ps1 output is being ramped from 30 000 inHg to a target of 5 000 inHg At approximately 9 0 inHg the rate of 4 000 inHg min translates to 10 000 ft min Above 9 0 inHg the rate of 4 000 inHg min translates to less than 10 000 ft min whereas below 9 0 inHg the rate of 4 000 inHg min translates to more than 10 000 ft min Therefore while the Ps1 output is above 9 0 inHg the Rate target will be 4 000 inHg but once the Ps1 output goes below 9 0 inHg the Rate target will be set to 10 000 ft min The 10 000 ft min value will translate to a reducing value in inHg min as the pressure reduces At 5 000 inHg the 10 000 ft min will translate to only about 2 400 inHg min On the 2 output format you will notice that although the target Rate is set to 4 000 inHg once the Ps1 output goes below 9 0 inHg the Actual Ps1 Rate will slowly reduce from 4 000 inHg min to 2 400 inHg min as the Ps1 output approaches its target of 5 000 inHg Note This limitation of the engineering rate is imposed only on the Ps1 and Ps2 outputs This limitation does not directly affect the engineering rate for the Pt output However the engineering rate for the Pt output may be indirectly affected by the rate change of the Ps1 output due to other possible constraints of maintaining specific differentials between the Pt and Ps1 outputs 29 Target Value Jog E
66. nots Control 100 0 Feet Control 30000 6000 Dfin Control 0 300 12 knots Control 100 0 Feet Control 50000 6000 Dfin Control 0 300 13 knots Control 20 0 Feet Control Ground 6000 Dfin Control Ground 14 knots Measure 20 0 Feet Measure Ground 6000 Dfin Measure Ground 15 END Row 1 always says Profile This indicates to the 6600 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 6600 display when this profile is executed 48 Row 2 middle cell shows the number of the profile This profile has a number 3 This tells the 6600 that this profile is to be loaded in as profile number 3 When profile 3 is executed on the 6600 this Sample profile will be executed This number can be any number between 1 and 15 When this profile is downloaded into the 6600 it will overwrite the previous profile that was resident in the 6600 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 information Column Information Pt units Pt mode Pt target value Ps1 units Ps1 mode Ps1 target value Rate target value Ps2 units
67. on range resolution accuracy Mach function range resolution accuracy Ps2 Output range resolution accuracy Power requirement 6 ft 35 000 ft 12 ft 50 000 ft 0 ft min to 25 000 ft min 1 ft min 1 of rate of climb 0 1 to 60 inHg 0 001 inHg 0 003 inHg 0 to 650 knots 0 1 knots 0 5 knots 50 knots 0 25 knots 100 knots 0 05 knots 650 knots 0 0 to 3 0 Mach 0 001 Mach 0 001 above 0 2 Mach 0 1 to 42 inHg Diff to Ps1 30 0 inHg 0 001 inHg 0 002 inHg 90 260 VAC 47 440 Hz 250 VA Interfaces RS232 Dimensions amp weights Main unit Remote unit Environmental specs Operating temp Storage temp Humidity 22 x14 x9 45 Ibs 7 x8 x2 11b 09 to50 C 25 to 75 C 5 to 95 non condensing 70 APPENDIX C CONNECTOR PIN OUTS AC INPUT A AC LINE B AC NEUTRAL C EARTH GND ENCODER 8 1 00000000 00000009 1 2 3 4 5 6 7 8 9 10 11 18 13 14 15 71 1 2 3 4 5 6 7 8 9 INTERNAL TX RX INTERNAL GND INTERNAL INTERNAL INTERNAL INTERNAL CONNECTION CONNECTION CONNECTION CONNECTION CONNECTION CONNECTION APPENDIX D REPAIR AND RETURN POLICIES If the product has a mal function please call Laversab s customer service department 281 325 8300 or fax 281 325 8399 or e mail aservice laversab com for assistance Please be
68. or Ps1 and Ps2 is set to the value memorized in the Set Ground function and the target value for Pt is set to the equivalent of 20 knots The 6600 then ramps towards these targets Once these targets have been achieved you must put the 6600 into Measure mode on all three outputs or turn the unit Off before disconnecting the 6600 from the aircraft The Go to Ground screen is shown below Press GO to GoTo Ground or press CANCEL to exit When GO is pressed the 6600 shows the Main screen This screen is shown below in the 2 output format with the new targets of 20 knots and 275 feet This assumes that the Ground pressure was 275 feet when the Set Ground function was invoked 2 output format Units knots Feet min Feet Actual C 101 2 3500 1005 C Target 20 0 5000 275 The 3 output format would appear as follows 3 output format Units knots Feet Feet Actual C 101 2 1006 C 1005 C Target 20 0 275 275 Note During the Go To Ground process the selected units remain unchanged Any output that is not in Control mode will be forced into Control mode The Rate target value remains unchanged Only the Pt Ps1 and Ps2 targets are modified to the Ground values 47 Profiles are created in Microsoft Excel and downloaded into the 6600 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
69. ore it needs to be calibrated once a year to perform adequately as a calibration standard for air data equipment 58 6 3 Ps1 and Ps2 CALIBRATION Step 1 Connect the output of the Pressure Standard to the Ps1 and Ps2 ports on the 6600 The pressure and vacuum sources are to be connected to the control mechanism of the Pressure Standard Step 2 Turn on the 6600 and allow it to warm up for about 30 minutes Change the main screen to the 3 output format Change the Pt unit to PtinHg Ptin and Ps1 and Ps2 units to inHg 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 Ps1 and Ps2 ports between 38 inHg absolute and 1 inHg absolute or lower at least three times During the warm up period ensure that the leaks in the system are within acceptable limits At 1 inHg absolute the leak rate must not exceed 0 030 inHg min At 38 inHg absolute the leak rate must not exceed 0 010 inHg min To determine the leak rate control the Pressure Standard to the desired pressure hold the pressure for 5 minutes to allow any temperature effects to subside then isolate the control mechanism from the Pressure Standard and measure the leak rate If the Pressure Standard is a Dead Weight Tester the leak rate should be low enough to ensure that the maximum allowable sink rate of the Dead Weight Tester is not exceeded Towards the end of the warm up period perform a r
70. ownload during a session in Hyperterminal 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 6600 Check that the profile loaded properly by selecting Function 4 on the 6600 and entering the profile number starting at step 1 ie 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 52 4 5 EXECUTING A PROFILE On the 6600 select Function 4 Execute profile On line 4 on the Main screen a profile number is required to identify the profile This number is x y where x is the profile number and y is the point number within that profile 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 15 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 pro
71. pped It is easier to wrap the remote cable around the posts after disconnecting the cable from the Remote unit If the remote cable needs to be disconnected and removed from the 6600 completely for storage elsewhere then opening the Interface Connectors cover allows the cable to be dislodged from the cable guide 5 Primary Static ports Ps1 The Primary Static output is provided on two ports that are internally connected Both ports have 4 AN fittings At least one of these ports must be connected through a hose to the Static port Psl and Pal on smart probe on the aircraft The hose must be connected after performing the Self Test on the 6600 The hose once connected must not be disconnected while the aircraft Static system is not at Ground level An unused port must remain closed Caution Do not connect this output to the aircraft before performing the Self Test Caution Do not disconnect this output from the aircraft unless the aircraft s Pitot Static system is at Ground level and the tester is OFF 6 Secondary Static ports Ps2 The Secondary Static output is provided on two ports that are internally connected Both ports have 4 AN fittings These ports are typically used when the aircraft has smart probes requiring a differential static input These ports may also be used either as a secondary static output or a secondary airspeed output When using the tester with aircraft with smart probes at le
72. refer to Section 3 2 2 The arrow keys are also used to move between various choices during Unit selection and Mode selection The HOLD key is used to hold the current pressure on all three outputs Pressing the HOLD key again will allow pressure to continue to ramp towards the desired target UNITS SELECT KEYS Units can be selected independently for the Pt Ps1 and Ps2 outputs 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 by the blinking unit mnemonic Once the cursor is on the desired units press ENTER to select that unit The Ps1 UNITS key brings up the choices for Ps1 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 Ps1 units to choose from 11 The Ps2 UNITS key brings up the choices for Ps2 units onto the 4th line of the display Use CANCEL to exit this unit selection mode Use the arrow keys to move between the choices Use the ENTER key to select a choice There are eight Ps2 units to choose from For more information on Units Selection please refer to Section 3 2 3 MODE SELECT KEYS These keys are used to select between one of three operating modes Measure Leak Control Modes can be se
73. rmat Use the PREV SCREEN key to move to the 3 output format Then press the Ps2 key in the Units section of the keypad The Ps2 units selection will be displayed on the 4t line of the display as shown below There are eight Ps2 units Differential inHg Dfin inHg Differential mbar Dfmb mbar feet meters mtrs knots kts kmph 32 The units of Differential inHg Dfin and Differential mbar Dfmb display the value of Ps2 pressure minus Ps1 pressure in either inHg or mbar In other words Ps2 pressure is displayed as a differential using Ps1 as the reference This differential pressure can also be displayed in units of knots or kmph This is useful when testing Angle of Side Slip AOSS where two different airspeeds have to be simulated on two separate probes on the aircraft In the 3 output format when the Ps2 key in the Units section of the keypad is pressed the choice of Ps2 units will appear on line 4 of the display four at a time The cursor is placed under the first choice The cursor position is indicated by the blinking unit name The arrow keys can be used to move the cursor The UP ARROW key moves the cursor right the DOWN ARROW key moves the cursor left AS the cursor moves past the last selection the next selection will be displayed The sample screen below shows the different Ps2 units with the cursor at Dfin indicated by blinking Dfin 3 output format Units knots Feet Feet Actual M 1
74. s 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 6600 can store up to 12 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 6600 The model 6600 comes with an RS232 interface This interface is mainly used to download profiles from a computer 1 SECTION 2 CONTROLS AND CONNECTIONS a gt e Note Pt Pitot Ps1 Primary Static and Ps2 Secondary Static 2 1 MAIN UNIT TOP PANEL The model 6600 top panel provides easy access to all the connections Please refer to Figure 2 1 1 AC INPUT connector This is a 3 pin male circular connector A power cord is provided with the 6600 The circular connector end of the power cord needs to connected here The power requirement of the 6600 is 90 260 VAC 47 440 Hz with a maximum power consumption of 200 VA Caution Connecting incorrect power to the 6600 will cause considerable damage The power cord is normally left connected to the 6600 at the AC INPUT connector and is wrapped around two cord posts 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 power cord A cord clamp allows the cord to be held in place after it is wrapped
75. sed then it is mandatory that the Ps2 output be in units of Differential inHg Dfin and the Ps2 target value be set to 0 000 Dfin This is NOT done automatically on power On It is the operator s responsibility to perform this function Failure to do so will result in improper operation of the unit Important Note If the Ps2 output is not being used then it must be capped off closed Rate target value The Rate target value can only be entered in the 2 output format Change the Main Screen to the 2 output format using the PREV SCREEN key In the 2 output format the middle vertical section will show the Rate units for Ps1 and will indicate min After the screen shows the 2 output format press the Ps2 RATE key to enter the Rate target value After the key is pressed the 2 output format will appear as shown below 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 aa 0 Now follow the same process for entering the value as described above in Numeric Value Entry Note that while entering Rate values it is NOT necessary to include the sign of the rate of change The 6600 will automatically determine the direction of the rate of change The displayed actual value will however indicate with a minus sign when the rate of change is negative Note The last effective Rate target value is retained through a power On Off cycle 27 Effect of Rate target value The Rate target value af
76. select functions 4 through 8 press the Down Arrow key on the keypad to move to the screen shown below Select function UP ARROW for functions 1 to 3 4 Execute profile 5 Set profiles 6 Height Correction 7 Set Ground 8 Goto Ground 41 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 6600 checks both the Target values and the Actual values to determine if they are within specific limits These limits can be set by the user To view these limits you can press the Function Select key and then choose Function 1 View Limits by pressing 1 The VIEW LIMITS screen appears as shown below VIEW LIMITS 1 max knots 500 0 4 max feet 50000 2 max Dfin 3 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 BA The correct password will take you into the Set Limits screen shown below SET LIMITS 1 max knots 500 0 4 max feet 50000 2 max
77. sia 3 Pressure standard having accuracy of at least 0 002 inHg up to 38 inHg and an accuracy of at least 0 003 inHg from 38 inHg to 60 inHg 6 2 GENERAL NOTES The transducers inside the 6600 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 will 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 60 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 6600 has a drift of typically 0 005 FS per year Theref
78. ss 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 Ps1 mode as LEAK Notice that the L on the right in line 2 is blinking 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 L Torget 20 0 3000 0 Important Note When either the Pt Ps1 or Ps2 Mode is changed to Control C ALL three outputs Pt Ps1 and Ps2 are automatically changed to Control During normal operation all three outputs must be connected to the aircraft and all three outputs must be set to achieve specific target values If the aircraft requires only the Pt and Ps1 outputs then the Ps2 output must be capped off closed on the 6600 Note When the 6600 is powered ON the Ps1 mode will always be in MEASURE 35 Ps2 Mode The Ps2 mode can be selected only in the 3 output format The Ps2 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 Move to the 3 output format using the PREV SCREEN key To change the mode press the Ps2 key in the Mode section of the keypad The three modes will be displayed on line 4 of the display with the cursor at Measure MEAS indicated by MEAS blinking The UP ARROW key can be used for moving the cursor right and the DOWN ARROW key can be used to move the c
79. stake is made during entry it can only be corrected 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 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 200 0 3000 0 The value will continue to blink until the GO key is pressed Only after the GO key is pressed 25 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 new target values need to be entered for Ps1 and Ps2 then these should be entered
80. sure down to about 5 inHg and then back up to 60 000 inHg Wait for 2 minutes then note the Actual value on Pt as R1 Again take the pressure down to about 5 inHg and then back up to 60 000 inHg Wait for 2 minutes then note the Actual value on Pt as R2 The difference between R1 and R2 must not exceed 0 002 inHg 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 note the actual values for Pt on the 6600 This is the As Found reading for the Pt Vacuum Test Point please see Fig 6 1 below It will indicate the zero drift since the previous calibration Step 4 Generate a pressure of 60 000 inHg absolute allow the pressure to stabilize for 2 minutes and note the actual value for Pt on the 6600 This is the As Found reading for the Pt Full Scale Test Point please see Fig 6 1 below It will indicate the zero plus slope drift since the previous calibration Leave the pressure at 60 000 inHg while you perform the next step If you do not wish to make a calibration adjustment but just want to verify the accuracy of the 6600 please skip to Step 10 Step 5 To make a calibration adjustment for the Pt output on the 6600 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
81. surement for displaying the Ps2 output This parameter is accessible only on the 3 output format There are eight possible selections for Ps2 units These are shown in section 3 2 3 which also explains how to select a particular unit The currently selected Ps2 unit is shown on the first line of the display as shown below The two values 1006 and 0 that appear below it are in these units 18 3 output format Units knots Feet Feet Actual M 101 2 1006 M 1005 M Target 20 0 0 0 Parameter 4 Ps1 Rate Units Unit of measurement for displaying the rate of change of the Ps1 output This parameter is accessible only on the 2 output format Normally the Ps1 Rate unit used is Feet min for displaying rate of change of altitude These units cannot be independently chosen Whatever the unit selected for the Ps1 output the Ps1 Rate unit is the per minute rate of that selected Ps1 unit If the Ps1 unit selected is inHg then the Ps1 Rate unit will be inHg min The currently selected Ps1 Rate 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 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 5 Pt Actual value This is the current pressure measured at the Pt output displayed in the current units This parameter is accessible in both 2 output and 3 output formats In the sampl
82. tatic mode between Measure Leak and Control please refer to section 3 2 4 2 output format Units knots Feet min Feet Actual M 101 2 3500 1005 M Target 20 0 3000 0 Parameter 15 Ps2 Mode This parameter is accessible only in the 3 output format The Ps2 output can be in one of three modes Measure M Leak L or Control C In the Measure mode the pressure at the Ps2 output is simply being measured and displayed as the Actual value in the current Ps2 units The pressure is not being changed by the 6600 In this mode the Ps2 control valve inside the 6600 that is used to change the pressure at the Ps2 output is pneumatically isolated from the Ps2 output In the Measure mode the Ps2 Target value is meaningless since the 6600 is not trying to achieve any specific target value The Leak mode is pneumatically identical to the Measure mode When either Pt Ps2 or Ps2 outputs 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 Ps2 output is in the Control mode the 6600 is actually attempting to achieve the Ps2 Target value The Ps2 control valve inside the 6600 is now connected to the Ps2 output and is actually increasing or decreasing the pressure to achieve and maintain the Target value The sample screen below shows the Ps2 mode as Measure M For an explanation of how to change the Static mo
83. tual values for Ps1 and Ps2 at each pressure point Your calibration sheet will appear as shown in Figure 6 1 64 Pt CALIBRATION Step 1 Connect the output of the Pressure Standard to the Pitot port on the 6600 The pressure and vacuum sources are to be connected to the control mechanism of the Pressure Standard Step 2 Turn on the 6600 and allow it to warm up for about 30 minutes The main screen may be either in the 2 output or 3 output format Change the Pt unit to PtinHg Ptin 60 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 60 inHg absolute and 1 inHg absolute or lower at least three times During the warm up period ensure that the leaks in the system are within acceptable limits At 1 inHg absolute the leak rate must not exceed 0 030 inHg min At 60 inHg absolute the leak rate must not exceed 0 030 inHg min To determine the leak rate control the Pressure Standard to the desired pressure hold the pressure for 5 minutes to allow any temperature effects to subside then isolate the control mechanism from the Pressure Standard and measure the leak rate If the Pressure Standard is a Dead Weight Tester the leak rate should be low enough to ensure that the maximum allowable sink rate of the Dead Weight Tester is not exceeded Towards the end of the warm up period perform a repeatability check at 60 inHg Take the pres
84. ues appear on the Main Screen Following the Equalization process only when the actual value on the Ps1 and Ps2 outputs are less than 2000 feet from Ground and the Pt output is less than 100 knots the 6600 will automatically inject a small vacuum on the Ps1 and Ps2 outputs and a small pressure on the Pt output This is done to determine the volume of the Pitot and Static system on the aircraft so that the 6600 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 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 100 knots 37 3 3 LEAK SCREEN Although most of the operation of the 6600 will be performed while in the Main Operating Screen described above at times the Leak Screen is also accessed When any of the outputs is put into the Leak mode after pressing GO the display changes to the Leak Screen A sample Ps1 Leak Screen is shown below Start 5000 feet Instant Leak rate Curr 4990 feet 30 Feet m Timer 00 20 Per min Leak rate Pt 200kts Ps2 4950 feet WAIT Feet m A sample Ps2 Leak Screen is shown below Start 6000 feet Instant Leak rate C
85. uire 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 6600 returns to the main screen where the user must press ENTER to invoke the next profile point 53 10 11 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 Each profile can have up to 50 points There can be 12 profiles resident in the 6600 at any one time New profiles can be loaded any number of times They have to be numbered 1 to 12 and will overwrite existing resident profiles with the same profile number Errors during profile execution will cause the profile to abort It can be restarted by the user at the point where the error occurred after the error is rectified If a 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 6600 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 54 SECTION 5 TYPICAL USE T
86. urr 5990 feet 25 Feet m Timer 00 24 Per min Leak rate Pt 200kts Psl 5000 feet WAIT Feet m A sample Pt 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 Ps1 O feet Ps2 O 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 Line 4 left half Shows the actual value of the outputs that are not in leak mode Instant Leak rate Shows the instantaneous rate at which the output is leaking For the Ps1 and Ps2 leak checks this number is updated every 0 25 seconds and shows 0 for leaks less than 20 ft min For the Pt 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 non p While in the Ps1 or Ps2 Screens if the leak ever exceeds 2000 ft min the 6600 will automatically trip out of the Leak mode and revert back to Control mode It will then display 38 a message as follows shown for Ps1 leak Ps1 leak exceeds 2000 ft min Returning Ps1 to Control Mode Please press GO While in the Pt Leak Screen if the leak e
87. ursor left 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 at MEAS 3 output format Units knots Feet Feet Actual M 101 2 1006 M 1005 M Target 20 0 0 0 Ps2 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 Ps2 mode as LEAK Notice that the L in the middle vertical section is blinking 3 output format Units knots Feet Feet Actual M 101 2 1006 i 1005 M Target 20 0 0 0 Important Note When either the Pt Ps1 or Ps2 Mode is changed to Control C ALL three outputs Pt Ps1 and Ps2 are automatically changed to Control During normal operation all three outputs must be connected to the aircraft and all three outputs must be set to achieve specific target values If the aircraft requires only the Pt and Ps1 outputs then the Ps2 output must be capped off closed on the 6600 Important Note If the Ps2 output is not being used then it must be left in Control Mode while either Ps1 or Pt are in Control Mode The Ps2 units must be Dfin and the Ps2 target value must be 0 000 Dfin Note When the
88. utput There is no information for the Ps2 output 15 The best indication that the screen is in the 2 output format is that the middle vertical section of the display will have Rate units that indicate per minute In the sample display shown above the Rate units are Feet min Main Screen 3 output format If all three outputs Pt Ps1 and Ps2 are connected to the aircraft then the Main Screen should be in the 3 output format The 3 output format appears as shown below Main Screen 3 output format Units knots Feet Feet Actual M 52 1006 M 1005 M Target 20 0 0 0 Pt Ps2 Psi As shown above in the sample 3 ouput format information is divided into three vertical sections The left section shows information for the Pt output the right section shows information for the Ps1 output and the middle section shows information for the Ps2 output Notice that in 3 output format there is no information for the rate of change of the Ps1 output To see or change information on the rate of change of Ps1 the screen needs to be changed to the 2 output format This is done by pressing the PREV SCREEN key The PREV SCREEN key toggles the Main Screen between the 2 output format and the 3 output format As an example if all three outputs are connected to the aircraft the preferred format would be the 3 output format Now to view or change the Ps1 rate your would toggle to the 2 output format using the PREV SC
89. ve 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 10 The 000 key is used to when numbers are needed to entered in thousands For example to enter the number 5000 press 5 and then press 000 TARGET VALUE KEYS There are typically 4 parameters that the 6600 controls Airspeed or Pt pressure Altitude or Ps1 pressure Climb or Pt Ps1 Ps2 rate and Secondary Altitude or Ps2 pressure Each parameter can be changed using a specific target value key The Pt AIRSPEED key is used to select Pt or Airspeed target value The Ps2 RATE key is used to select Ps2 target value if the Main screen being displayed is in the 3 output format section 3 2 If the Main screen being displayed is in the 2 output format then this key is used to select the target value for Rate of change of Ps1 in Ps1 units per minute i e feet min meters min inHg min or mbar min The rate of change of Ps1 is also used as the rate of change of Ps2 and in units of inHg and mbar is also used as the rate of change of Pt For more details please see Effects of Rate target value in section 3 2 2 The Ps1 ALTITUDE key is used to select Ps1 or Altitude target value 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 For more information please
90. ve then the Pt Vent valve and last the Ps1 Vent valve Caution Before opening the Ps1 Vent valve both the Ps2 Vent and Pt Vent valves must be completely open Caution Do not over tighten the valve as this may damage the seat of the valve 12 Secondary Static Vent Ps2 Vent In the event that the 6600 is in operable due to a malfunction or due to loss of power it is possible to vent the Ps2 system manually This is done using the metering valve labeled Ps2 Vent This valve is a positive shut off valve Opening this valve slowly will cross bleed the Ps2 output to the Ps1 output of the 6600 While venting care must be taken to ensure that the maximum climb rate of the aircraft connected to the tester is not exceeded Also the Pt Vent may need to be used to maintain the airspeed within limits of the indicator on the aircraft The Secondary Static Ps2 and Pitot Pt ports are referenced to the Primary Static Ps1 port The Ps2 Vent and Pt Vent valves are used to cross bleed to the Primary Static Ps1 ports Therefore the manual vent valves must be opened in sequence First open the Ps2 Vent valve then the Pt Vent valve and last the Ps1 Vent valve Caution Before opening the Ps1 Vent valve both the Ps2 Vent and Pt Vent valves must be completely open Caution Do not over tighten the valve as this may damage the seat of the valve 13 Pitot
91. ver exceeds 50 knots min the 6600 will automatically trip out of the Leak mode and revert back to Control mode It will then display a message as follows Pt leak exceeds 50 knots min Returning Pt to Control Mode Please press GO When either of these warning messages is displayed press GO This 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 and fix the leak before proceeding further Note It is important that each output be put into the Leak mode independently That is when the Pitot system of the aircraft needs to be checked for leaks only the Pt output should be in Leak mode keeping the Ps1 and Ps2 outputs in Control mode When the Static system of the aircraft needs to be checked for leaks only the Ps1 output should be in Leak mode keeping the Pt and Ps2 outputs in Control mode When the Differential Static system only on aircraft with smart probes of the aircraft needs to be checked for leaks only the Ps2 output should be in Leak mode keeping the Pt and Ps1 outputs 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 6600 will revert back to Control mode on exiting the Leak Screen Note If the Leak screen is entered from the 2 output format of the Main screen then pressing CANCEL in the Leak screen will

MODEL 6600 Rev. B4 USER`S MANUAL

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