GE Druck ADTS 405 Page 36 User Manual Download

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K114 Issue No. 9

3 - 2

Operation

3.2 Display Functions and Units of Measure

When operating in either pressure measuring or pressure controlling modes, the ADTS
405 can display the following information:

Aeronautical Functions

Display Abbreviation

Displayed Units

(if applicable)

Altitude

ALT

ft, m

Calibrated and True Airspeed

CAS, TAS

kts, km/h, mph

Mach

MACH

Rate of Climb

ROC

ft/m, m/m, m/s, hm/m

Rate of Airspeed

Rt CAS,

kts/m, km/h/m, mph/m

Rate of Mach

RtMCH

Mach/m

Pressure Functions

Display Abbreviation

Displayed Units

(if applicable)

Static (Absolute)

[P]

Pitot (Absolute)

[P]

Dynamic or Impact (Differential)

[P]

Engine Pressure Ratio

EPR

Rate of Ps

Rt Ps

[P]

Rate of Pt

Rt Pt

[P]

Rate of Qc

Rt Qc

[P]

Rate of EPR

Rt EPR

EPR/m

Where

[P]

is the currently selected pressure units from the following list:

mbar, inHg, mmHg, inH

O (4°C), inH

O (20°C), psi, hPa, kPa, inH

O (60°F), kg/cm

, %FS

IGURE

3-1 F

RONT

ANEL

Summary of Contents for Druck ADTS 405

Page 1: ...ensing DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA Ps 1013 25 mbar Aim 1013 25 Pt 3199 91 mbar Aim 3200 00 DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL ...

Page 3: ...O NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA Ps 1013 25 mbar Aim 1013 25 Pt 3199 91 mbar Aim 3200 00 Druck ADTS 405 Air Data Test Systems User Manual K114 DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL ...

Page 4: ...K114 Issue No 9 ...

Page 5: ...e user and the equipment from injury or damage Use qualified technicians and good engineering practice for all procedures in this publication Pressure Do not apply pressure greater the maximum safe working pressure to the equipment Toxic Materials There are no known toxic materials used in this equipment Maintenance The equipment must be maintained using the manufacturer s procedures and should be...

Page 6: ...ion User Manual K220 Line Switching Unit LSU 100 101 User Manual K222 Line Switching Unit LSU 200 Operating and Communications Manual K223 Line Switching Unit LSU Series TPM Programming and Communications Manual K230 Test Program Manager Version 4 for Windows TPM User Manual K250 Test Program Manager Version 4 for Windows Symbols This symbol on the instrument indicates that the user should refer t...

Page 7: ...r Storage and Transportation 2 1 2 3 Electrical Connection 2 5 2 4 Pneumatic Pressure Connections 2 7 2 5 Positioning of the ADTS 405 2 8 2 6 Positioning of the ADTS 405F 2 9 3 OPERATION 3 1 Preparation 3 1 3 2 Display Functions and Units of Measure 3 2 3 3 Quick Reference 3 3 3 4 First Time Operators 3 4 3 5 Operation and Example Procedures 3 10 3 5 1 Checks Before Use 3 10 3 5 2 Operating Proced...

Page 8: ...pressure 5 4 5 5 Fault Diagnosis 5 5 5 6 Further Testing 5 8 Test Environment and Preliminary Operations 5 8 Pressure Leak Check 5 8 Vacuum Leak Check 5 9 Controller Stability 5 10 5 7 Testing an Option Facility 5 11 Testing the IEEE 488 Facility 5 11 Configuring and Enabling the IEEE 488 Facility 5 11 Programming a Test of the IEEE 488 Facility 5 12 Connection of the IEEE 488 Facility 5 13 Testin...

Page 9: ...TUP MORE CONTROL Ps Pt DUAL 6 17 SETUP MORE DISPLAYS OPTIONS DISPLAY TYPE 6 18 SET UP MORE DISPLAYS OPTIONS OPTIONS 6 20 SETUP MORE CLOSE OUTPUT VALVES 6 20 SETUP MORE OPEN OUTPUT VALVES 6 20 SET UP MORE SYSTEM SELF TEST 6 20 SET UP ALT 6 21 SET UP SPEED AUTO ZERO 6 21 SET UP SPEED CAS TAS 6 21 SET UP SPEED Pt TEMPERATURE 6 23 SET UP MACH 6 23 SET UP RATE TIMER 6 23 SET UP RATE 6 23 SET UP LEAK ME...

Page 10: ...X LIMITS 6 32 CONFIG LIMITS EDIT LIMITS EDIT NEW 6 32 CONFIG LIMITS CLEAR LIMITS 6 32 CONFIG LIMITS LOCK AIRCRAFT 6 32 CONFIG LIMITS DEFAULT AIRCRAFT 6 32 CONFIG MORE CONTROL CONTROL MODE 6 32 CONFIG MORE CONTROL CONTROL LOCK 6 32 CONFIG MORE DISPLAY OPTIONS DISPLAY TYPE 6 32 CONFIG MORE DISPLAY OPTIONS OPTIONS 6 32 CONFIG MORE DATE FORMAT 6 32 CONFIG MORE SETUP MODE 6 33 FULL 6 33 MINIMUM 6 33 OF...

Page 11: ...Figure 2 6 ADTS 405F General View 2 12 Figure 3 1 Front Panel 3 2 Figure 3 2 Main Pressure Display Leak Measure Mode 3 12 Figure 3 3 Main Pressure Display Control Mode 3 13 Figure 3 4 Single Display 3 15 Figure 3 5 Dual Display 3 16 Figure 3 6 Triple Display 3 16 Figure 3 7 Rate Timer Display Aeronautical Units 3 17 Figure 3 8 Rate Timer Display Pressure Units 3 17 Figure 3 9 Pt Only Display 3 18 ...

Page 12: ...ercury Hz Hertz IAS Indicated airspeed i e That is IEEE 488 Institute of Electrical and Electronic Engineers standard 488 data in Inch kg Kilogram LED Light emitting diode m Metre mA Milliampere max Maximum mbar Millibar min Minute or minimum mm Millimetre mV Millivolts No Number N m Newton metre Para Paragraph Ps Static pressure psi Pounds per square inch Pt Total pressure Qc Differential pressur...

Page 13: ... for that measurement Disconnect To detach the connection between to separate keyed or matched equipment parts Dismantle To take apart to the level of the next smaller unit or down to all removable parts Examine To perform a critical visual observation or check for specific conditions to test the condition of Fit Correctly attach one item to another Inspect Review the work carried out by Specialis...

Page 14: ...ake an equipment unit out of the next larger assembly or system To take off or eliminate To take or move away Repair To restore damaged worn out or malfunctioning equipment to a serviceable usable or operable condition Replace Remove an item and fit a new or a serviced item Reset To put back into a required position adjustment or condition Service To perform such operations as cleaning lubricating...

Page 15: ...GA number providing the following information Product i e ADTS 405 Pressure medium i e air nitrogen Serial number Details of defect work to be undertaken Operating conditions Safety Precautions You must also tell us if the product has been in contact with anything hazardous or toxic and the relevant COSH references and precautions to be taken when handling Important notice Service by unauthorized ...

Page 16: ...t i e ADTS 405 Pressure medium i e air nitrogen Serial number Details of defect work to be undertaken Operating conditions Safety Precautions You must also tell us if the product has been in contact with anything hazardous or toxic and the relevant MSDS references and precautions to be taken when handling Important notice Service by unauthorized sources will affect the warranty and may not guarant...

Page 17: ...examination and test requirements recorded in confidential report number 05 C 0154 Baseefa dated 12th October 2005 NOTE Refer to pages 2 2 of the Certificate of conformity for electrical connection parameters Rated Voltage 32Vdc Marking detail ADTS Hand Terminal Baseefa05ATEX0192 II 3G IP54 Baseefa05ATEX0192 EC type examination certificate number EEx nA nL IIC T4 25 C Tamb 55 C Druck LE6 0FH UK 6 ...

Page 18: ...a P r o t c a F r a b 0 0 0 0 0 1 t f f b l 2 3 0 8 8 7 4 n i f b l 2 i s p 6 7 4 9 8 6 g H n i 9 3 6 8 3 3 H m 2 O 5 6 6 0 8 9 H n i 2 1 O 9 8 0 9 4 2 r a b m 0 0 1 H t f 2 1 O 7 0 9 8 9 2 m c f g k 2 5 6 6 0 8 9 m t a 0 5 2 3 1 0 1 m f g k 2 5 6 6 0 8 9 t f l d p 2 6 1 8 8 4 1 g H m m 2 2 3 3 3 1 m c n y d 2 1 0 g H m c 2 2 3 3 3 1 r a b h 0 0 0 0 0 0 0 1 g H m 0 2 2 3 3 3 1 t f f n o t 2 K U 0 ...

Page 19: ...e only channels with leak testing facility or each can be control channels producing true pressure conditions for altitude and airspeed To protect sensitive instruments and equipment a ground facility automatically and safely controls both channels to atmospheric pressure at the previously entered rates of change and then informs the operator when both channels are safely at ground The operator in...

Page 20: ...GURE 1 1 ADTS 405 GENERAL VIEW DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA Ps 1013 25 mbar Aim 1013 25 Pt 3199 91 mbar Aim 3200 00 DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL ...

Page 21: ...i l d r a d n a t S s t i m i l l i v i C t l A n i M t f 0 0 0 3 t f 0 0 0 2 t f 0 0 0 1 t l A x a M t f 0 0 0 5 0 1 t f 0 0 0 0 8 t f 0 0 0 0 5 S A C n i M s t k 0 0 1 s t k 0 0 s t k 0 S A C x a M s t k 0 5 8 s t k 0 5 8 s t k 0 5 4 s P n i M r a b m 0 3 r a b m 5 1 6 7 2 r a b m 2 7 9 5 1 1 s P x a M r a b m 0 0 5 5 3 1 r a b m 7 5 6 8 8 0 1 r a b m 6 0 4 0 5 0 1 c Q n i M r a b m 0 0 2 5 3 1 ...

Page 22: ...8 2 1 1 r a b m 6 0 4 0 5 0 1 c Q n i M r a b m 0 0 2 5 3 1 r a b m 3 0 3 6 1 r a b m 0 c Q x a M r a b m 0 0 0 0 5 2 r a b m 0 5 0 9 4 2 r a b m 1 0 8 6 3 h c a M x a M 7 9 4 1 5 1 C O R x a M n i m t f 0 0 0 0 0 1 n i m t f 0 0 0 5 1 n i m t f 0 0 0 6 S A C e t a R x a M n i m s t k 0 0 0 2 n i m s t k 0 0 7 n i m s t k 0 0 6 s P e t a R x a M n i m r a b m 0 0 0 0 0 0 1 n i m r a b m 0 0 0 0 2 ...

Page 23: ... supply cable iv Hand terminal v Hand terminal cable 2 m vi Hand terminal cable 18 m vii Output hose 2 5m red AN6 open viii Output hose 2 5m blue AN4 open ix User Manual this publication x Spare fuses 2 off 2 2 Packaging for Storage or Transportation To store the unit or to return the unit for calibration or repair carry out the following procedures 1 Pack the unit as detailed in the following pro...

Page 24: ...ag Fit the lid to the unit If available use the original packing material When using packing materials other than the original proceed as follows Wrap unit in polyethylene sheeting Select a double wall cardboard container Inside dimensions must be at least 15 cm greater than the equipment The carton must meet test strength requirements of 125 kg Protect all sides with shock absorbing material to p...

Page 25: ...K114 Issue No 9 Installation 2 3 2 DO NOT DISCONNECT WHEN ENERGIZED IN THE HAZARDOUS AREA DRUCK ADTS 405 ATEX COMPLIANT HAND TERMINAL FIGURE 2 1 EQUIPMENT AND PARTS 1 4 8 2 6 11a 5 12 10 2m 18m 9 3 13 ...

Page 26: ... 7 1 5 0 4 S T D A n e p O T S N A M 5 2 x 2 r o t p a d a e s o h t i K F 5 0 4 S T D A d n a 5 0 4 S T D A 1 8 0 M 1 6 9 2 7 1 5 0 4 S T D A 6 N A N P O T S d e r s P c i t a t S e s o H e l b a l i a v a s n o i t p o l a i c e p S F 5 0 4 S T D A d n a 5 0 4 S T D A 1 9 0 M 2 6 9 2 7 1 5 0 4 S T D A 4 N A N P O T S e u l b t P t o t i P e s o H e l b a l i a v a s n o i t p o l a i c e p S F 5...

Page 27: ... supplied with an approved power supply cable for use in the country of delivery This can limit the maximum supply voltage that can be safely used e g a NEMA 5 15P terminated cable for use in the U S A is approved for a maximum of 125 V ac it must be replaced for a higher supply voltage ADTS 405 rack mounted units Make sure that the power supply is off before connecting the power cable If required...

Page 28: ... fuses located in the holders and mounted on the front panel protect the Electronics Rack and the Pump Rack The fuses are connected in the live supply circuit and are rated at 5A anti surge HBC 250V An external earth ground cable may be connected to the stud on the front panel of the pump rack to ensure integrity of the earth ground connection DC Power Option The DC power option nominal 28 V DC ca...

Page 29: ...r rear outputs ADTS 405F flight line Static Ps AN 6 37 flare Pitot Pt AN 4 37 flare Pressure supply AN 4 37 flare Vacuum supply AN 6 37 flare Auxiliary vacuum supply AN 4 37 flare In normal operation make sure that the correct blanking caps are fitted to the external connectors The external pressure and vacuum connections are used when an external pump unit supplies the pressure and vacuum This ma...

Page 30: ...c The Pt pitot output should be left with a blanking cap fitted Note The Ps ONLY mode of operation must be used in this configuration 2 5 Positioning of the ADTS 405 It is important that the position of the ADTS 405 in relation to the components under test is known An altitude correction must be made to allow for the difference in height between the reference level indicated on the mimic panel and...

Page 31: ...utside the user defined zone 2 hazardous area Only the ATEX certified hand terminal may be used inside the defined zone 2 hazardous area refer to section 6 5 for a definition It is important that the position of the ADTS 405F in relation to the aircraft altitude sensors is known An altitude correction must be made to allow for the difference in height between the reference level and the aircraft s...

Page 32: ...K114 Issue No 9 2 10 Druck ADTS 405 User Manual F IGURE 2 4 ADTS 405 G ENERAL VIEW ...

Page 33: ...K114 Issue No 9 Installation 2 11 2 F IGURE 2 5 ADTS 405 R EAR P ANEL VIEW ...

Page 34: ...c output connector Connector cable 2m or 18m Hand terminal Pitot output connector Altitude reference Auxiliary Vacuum input connector Vacuum input connector Calibration enable switch Power supply switch Pump switch ARINC 429 Altimeter encoder connector optional AC power supply connector DC power supply connector optional DC and AC power supply fuses Pressure input connector Fan outlet cover Elapse...

Page 35: ...moisture Make sure the aircraft adaptors are serviceable Connect to the air data test system the hoses necessary for the test procedures to be carried out red hose to the STATIC output Ps blue hose to the PITOT output Pt Temporarily seal the free ends of the hoses Note When connected take care not to kink or stand on the hoses Connect the hand terminal to the air data test system through the HAND ...

Page 36: ...ach MACH Rate of Climb ROC ft m m m m s hm m Rate of Airspeed Rt CAS kts m km h m mph m Rate of Mach RtMCH Mach m Pressure Functions Display Abbreviation Displayed Units if applicable Static Absolute Ps P Pitot Absolute Pt P Dynamic or Impact Differential Qc P Engine Pressure Ratio EPR Rate of Ps Rt Ps P m Rate of Pt Rt Pt P m Rate of Qc Rt Qc P m Rate of EPR Rt EPR EPR m Where P is the currently ...

Page 37: ...urrent rates of change Display local atmospheric ground pressure Display sea level equivalent of local atmospheric pressure See Line Switching Unit User Manual Switches toggles between remote and local operation Prints current parameter values Inserts alphabet character in user text Deletes last character of user text Numeric entry for user text Execute down loaded Test Programs Select next listed...

Page 38: ... power up routine starts 1 The display on the front panel or hand terminal shows DK126 Iss 1 xx Display Power Up Please Wait 2 After a short time the display shows DRUCK ADTS 405 DK263 VER 6 xx Note Where x is the current issue number of the software 3 Last Calibration dd mm yy dmy RPT Transducer PLEASE WAIT Note Date format can be changed in configuration For units fitted with the Solartron trans...

Page 39: ...ADTS 405 is a continuous self monitoring system If the system detects an error the display shows an error message Lists of errors are detailed in Section 5 Fault Finding and Testing ALT 0 ft Leak Measure WARMUP Note Wait 15 minutes before continuing to allow the system to get to thermal stability The wait time can be reduced to 5 minutes if the system has been re powered after a short time Operati...

Page 40: ...red value ALT Ps STATIC MACH Pt PITOT Units of measurement SETUP SETUP Change display dual or triple press single Change units from aeronautical to pressure MORE CONTROL DISPLAYS OPTIONS OPTIONS Ps Pt DUAL DISPLAY TYPE UNITS SAVE PREV NEXT To select the measured parameter press kts CAS Alt 350 10000 Leak Measure Leak Measure ...

Page 41: ...K114 Issue No 9 Druck ADTS 405 User Manual 3 7 3 Control Mode ...

Page 42: ...e It is important especially for leak testing to allow enough time for the heated gas to cool and the pressure to stabilize When setting the rate timer consider three factors 1 The volume of the system to be tested large volumes take longer to stabilize 2 The pressure change the higher the change the greater heat generated 3 The ambient air temperature ...

Page 43: ...K114 Issue No 9 Druck ADTS 405 User Manual 3 9 3 Go to Ground ...

Page 44: ...tified on the key pad Key presses inside brackets e g MORE are soft key presses i e function key selections F1 to F4 indicated on the display screen Help System The help information includes further details of the function and details associated functions also see the Reference Section 6 3 6 Power up Check the power indicator is illuminated and set the front panel power switch to OPERATE The displ...

Page 45: ...together press ALT Ps then SPEED Qc In control mode an arrow at the right hand end of the aim value indicates the last parameter selected This can be changed by entering a new value To display a value parameter together with its rate Press the parameter key followed by the associated rate key e g displayairspeedandrateofspeedtogether pressSPEED QcthenRATE See Rate set up for display details Note I...

Page 46: ...s see 3 13 Using the SETUP menu choose the limits set for the aircraft or UUT see 3 14 Press SETUP LIMITS and NEXT repeatedly to select the limit set from those available Press SEL to save and then press CLEAR QUIT repeatedly until the main pressure screen shown below is displayed Note The numeric value of the parameters displayed change with each power up sequence The amount of change depends on ...

Page 47: ...NTER to set the rate of climb ALT Ps to select the altitude 5 0 0 0 ENTER to set altitude altitude Alt now starts increasing SPEED Qc to view altitude and airspeed together Note When altitude and airspeed are changing at the same time and automatic airspeed rate is enabled the system automatically adjusts the airspeed rate so that the aim points are reached at the same time The airspeed rate will ...

Page 48: ...l for the display shows Safe At Ground After a successful leak test the ADTS 405 is now ready to be connected to an aircraft system or unit under test After an unsuccessful first time leak test leave the system to achieve thermal stability for a further five minutes press CLEAR QUIT and repeat the leak test If the leak test is now successful the ADTS 405 is now ready to be connected to an aircraft...

Page 49: ... in any set up or menu type display for a period of more than one minute The triple display always shows altitude and airspeed with pressure units selected the display always shows Ps and either Qc Pt or EPR When ALT or CAS are selected the display shows the aim and measured values of ALT and CAS as a dual display With any other selected parameter the display shows the measured values of altitude ...

Page 50: ...K114 Issue No 9 3 16 Operation FIGURE 3 6 TRIPLE DISPLAY FIGURE 3 5 DUAL DISPLAY ...

Page 51: ...the rate timer displays These displays do not depend on the display mode single dual triple or option Pressing a parameter key ALT ROC etc or CLEAR QUIT exits the rate timer displays FIGURE 3 7 RATE TIMER DISPLAY AERONAUTICAL UNITS FIGURE 3 8 RATE TIMER DISPLAY PRESSURE UNITS Note There is no pointer for the primary parameter values cannot be entered in the rate timer displays ...

Page 52: ...s as follows Note Display cannot be changed with SETUP switched off or in minimum mode To change the display Press SETUP Select MORE Select DISPLAYS OPTIONS Select DISPLAY TYPE Using NEXT or PREV Select either SINGLE DUAL or TRIPLE ARINC ENCODER more display types with options fitted Press SAVE to accept Press CLEAR QUIT repeatedly to return to user display To change the display for Pt Only Press ...

Page 53: ...to the main pressure display Note The default pressure and aeronautical units are defined in the CONFIGuration mode If Set up Mode is switched off units cannot be changed 3 14 Limit Checking The system checks all data entered against minimum and maximum limits set for the particular limit set in use If these limits are exceeded the data entry is ignored and a warning message displayed showing the ...

Page 54: ... can be edited In addition the set of limits in use at power up can be selected If required this selection can be locked to prevent unauthorised changing of the limits Auto recovery facilities The pressure controllers in the ADTS 405 can feed a leak in an aircraft system When first testing an aircraft system a leak test must be carried out at low altitude and airspeed If during a leak test a leak ...

Page 55: ...Note If the altitude changes the system automatically adjusts the airspeed to keep the Mach value constant True Airspeed The normal airspeed parameter is Calibrated Airspeed CAS equivalent to IAS for testing purposes The airspeed parameter may be changed to True Airspeed TAS as follows Press SETUP then SPEED Select CAS TAS Select TAS Press QUIT CLEAR repeatedly to exit set up Press SPEED The displ...

Page 56: ...ENTER and observe the airspeed changing Using the nudge facility set to an appropriate step value increase the Aim value Increase the Aim until the switch operates contacts close and record the value Change the Aim to above the airspeed operating range i e 133 knots Repeat the steps decreasing the Aim value until the airspeed switch operates contacts open and record value This procedure can be rep...

Page 57: ...QUIT to return to the main pressure display Pressure units cannot be selected when set up mode is switched off To enter an EPR of 1 8 with inlet pressure of 500 mbar 15 inHg proceed as follows If the display shows Leak Measure press LEAK MEASURE CONTROL to regain control Note The pressure vacuum pumps must be switched on Press ROC Ps RATE to select rate of change of static Enter required rate of c...

Page 58: ... The ground pressure or Ground replaces the static or altitude aim value If required new rates of change can be entered while going to ground To change the ROC or static rate press ROC Ps Rate and enter the new value To change the airspeed or Qc rate press SPEED Qc then RATE and enter the new value To change from going to ground enter a new altitude static or airspeed Qc set point When the airspee...

Page 59: ...der altimeters to be displayed on either the hand terminal or display and key pad of the unit The displayed data includes the bit pattern and the equivalent altitude decoded from the bit pattern The unit supplies 24 VDC to power the altimeter encoder electronics circuit and the altimeter vibrator circuit Druck publication K170 Altimeter Encoder Option User Manual provides details of displayed and ...

Page 60: ...system is switched off CONFIGuration can be used to change the power up default settings of the ADTS 405 functions Note Access to the CONFIGuration mode may be protected by a PIN 3 18 Quick Reference The quick reference charts show full set up minimum set up and configuration functions In the key selection column the following applies ALT Key NEXT Item in menu soft key SINGLE DOUBLE Sequence of pa...

Page 61: ... output valves Start self test Full or minimum set up selected in configuration Select units Step through available units Step back through available units Select displayed units Select set of limits aircraft 1 aircraft 2 As NEXT in reverse order Select displayed limit set Oscillate about aim For Ps channel Select single dual or triple display SINGLE DUAL TRIPLE ENCODER ARINC429 As NEXT reverse or...

Page 62: ...tic airspeed rate Automatic Manual Auto leak recovery on or off Auto limit recovery on or off Airfield altitude for QNH display See Line Switching Unit User Manual Remote mode lock see configuration Adjust date and time Enter Time Help on SETUP Enter nudge values ALT CAS TAS MACH ROC RATE RATE CAS Aeronautical units or Ps Pt Qc EPR RATE Ps RATE Qc RATE EPR Pressure units As NEXT in reverse order R...

Page 63: ...Set units type Set units to default aeronautical units Set units to default pressure units Select set of limits aircraft 1 aircraft 2 As NEXT in reverse order Select displayed limit set Altitude correction value See option user manual Help on set up Result file related print option Print save mode selection Print generated result data Save generated result data to file Print result file option Sel...

Page 64: ...MAX ALT MIN ALT MAX CAS MIN CAS MAX MACH MAX ROC MAX RATE CAS MIN Ps MAX Ps MIN Qc MAX Qc MAX RATE Ps MAX RATE Qc ARINC LIMITS ALTITUDE CORRECTION As NEXT in reverse order Switch toggle to ARINC 565 limits Limit value Insert alphabet character in name Nudge up select next letter in alphabet Nudge down select previous letter in alphabet Delete last character in name Create maximum limits called MAX...

Page 65: ...state Lock auto leak recovery Lock Auto limit recovery state Auto leak recovery Lock Configure WAIT and TIME times For F1 Change to TIME Change to WAIT TIME time period WAIT time period See Wait Time on F1 See Wait Time on F1 Configure Calibrated or True airspeed Auto zero function Configure Pt temperature Automatic airspeed rate Automatic Manual CONFIG SETUP F1 KEY PRESS contd Ps Pt DUAL control ...

Page 66: ...S Ps Pt Qc EPR RATE Ps RATE Qc RATE EPR As NEXT in reverse order Required nudge increment As nudge up Delete test program PIN protection PIN code number to enter CONFIG set to 0000 for no code required Refer to option user manual Refer to option user manual Run test program on power up Airfield altitude for QNH display Remote mode lock Print Save mode selection Generated result data printed Genera...

Page 67: ...i a D t c e p s n I B y l k e e W t s e T C e s u e r o f e B t s e T D e s u e r o f e b y l i a D e t a r b i l a C E s h t n o m 2 1 y r e v E e c a l p e R F n o i t c e p s n i r e t f a d e l i a t e d n e h w r o g n i d n i f t l u a f n i d e l i a t e d s A n a e l C G y l k e e W e c i v r e S H r o t a c i d n i e m i t d e s p a l e t i n u p m u p e h t y b d e d r o c e r s r u o h ...

Page 68: ...UIPMENT REQUIREMENTS 1 e d o C f e R 2 e r u t a l c n e m o N 3 s r e r u t c a f u n a M r e b m u n t r a p 1 l a t i g i D r e t e m t l o V 1 9 2 7 H 7 7 e p y T I I s e i r e s e k u l F 2 V 0 5 2 r e t s e T n o i t a l u s n I n i b o R Note Equivalent substitutes can be used 4 2 Materials This lists materials required for the user to maintain the ADTS 405 The item number and name in the t...

Page 69: ...or calibration facility The date of calibration is stored in the unit and displayed in the power up sequence and on a label on the front panel Do not use a unit with out of date calibration Engineering authority may change the periodicity of calibration depending on usage and the operating environment F As detailed in fault finding or when detailed after inspection replace the listed item in table...

Page 70: ...or Return the unit to the intermediate service depot for further testing and replacement of items Replacing the output connector o ring After inspection as detailed in maintenance task B carry out the following if the o ring is worn or damaged Carefully remove the o ring from the small groove at the top of the connector Fit a new o ring in the small groove at the top of the connector Make sure the...

Page 71: ... expected maximum value for the 18 metre 60ft cable The resistance value varies depending on the length of the cable Measure insulation using the Insulation tester item 2 Table 4 3 set to an appropriate range Measure the insulation resistance between the shell of the connector and all individual pins in turn Measure the insulation resistance between the shell of the appropriate connectors and all ...

Page 72: ...K114 Issue No 9 4 6 Maintenance INTENTIONALLY LEFT BLANK ...

Page 73: ...s are displayed during normal operation if out of range values are entered or if faults occur This section details the standard serviceability test and the possible error messages and codes that can be displayed A fault diagnosis flow chart and table provide the probable cause and procedures to rectify specific symptoms Error messages When the display shows a message indicating entry of incorrect ...

Page 74: ...ect the hand terminal Make sure that the blanking caps are fitted to the Ps and Pt front panel outputs Check power indicator is on Set the front panel switch to OPERATE Set the front panel switch for the pump unit to PUMP ON and check that the pump power indicator lights Check the display shows the first stage power up message as below where x is the version number of the installed display driver ...

Page 75: ...proceed without waiting for the message to clear 3 An automatic zero if enabled takes place regularly The display shows ZERO and the state of the valves on the mimic panel change for approximately six seconds Commands may still be entered while auto zero takes place Press the MACH key and check the display changes to show Altitude and Mach measured values Pump unit Set the front panel switch for t...

Page 76: ...r the valves close pressure may be trapped in the internal system the display may show on the next power up error 701 0100 or 702 0100 The following procedure to vent this pressure enters the maintenance mode Review and become familiar with the whole procedure before beginning the venting process 1 Remove the source of pressure and vent Ps and Pt to atmosphere caps off CAUTION ONLY SELECT ITEMS DE...

Page 77: ... F2 Supervisor EEPROM F3 More 5 Select F3 The display shows MAINTENANCE F1 System F2 Hardware F3 Error log 6 Select F3 The display shows MAINTENANCE F1 Vent System F2 Set System Ready F3 View Temperature 7 Select F1 and when complete press CLEAR QUIT three times to reset the system 5 5 Fault Diagnosis If the display shows a warning or error message refer to the above sections If a fault occurs ref...

Page 78: ...D SERVICEABILITY TEST FUNCTIONAL TESTING COMPLETE MAKE SURE POWER UP SEQUENCE IS COMPLETED WITHOUT ERRORS N Y N POWER UP MESSAGE HAND TERMINAL DISPLAY POWER UP MESSAGE Power up sequence DK282 version xx xx Display Power Up Please Wait DRUCK ADTS 405 DK 263 Ver 6 xx Last Calibration mm dd yy mdy PLEASE WAIT RPT Transducer Self Test PLEASE WAIT Measuring Ground Pressures PLEASE WAIT Equalising Syste...

Page 79: ...al fault Remove hand terminal and re test Replace hand terminal Hand terminal or hand terminal cablefault Recordfaultandreturn hand terminal cable to depot for repair Check power supply Check replace power supply fuse or reset circuit protection device Check replace fuse front panel Replace cable and re test Record fault and return ADTS 405 to depot for repair F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 Replac...

Page 80: ...dly select NEXT until the display shows mbar 2 Select SAVE and then press CLEAR QUIT twice and the display now shows Ps and Pt in units of mbar Pressure Leak Check This section verifies that the unit is leak tight under positive pressure conditions 1 Press LEAK MEASURE CONTROL to enter control mode The display shows Aim in place of Leak Measure 2 Enter a Ps aim of 1016 mbar by pressing ALT Ps 1 0 ...

Page 81: ...re mode 5 Press RATE TIMER and select WAIT 05 00 TIME 01 00 Observe that the Waiting time is shown on the display as it counts down followed by the Timing time 6 At the end of the Timing period press ROC Ps RATE to display the measured rate of change of Ps T is shown after the value indicating a timed average 7 Check that the Ps Qc and Pt rates are less than or equal to 0 5 mbar min If the leak ra...

Page 82: ... and wait for the aim values to be achieved 5 If auto zero is enabled wait for an auto zero to take place During auto zero the valve state changes on the mimic panel and the display shows Zero in place of the airspeed aim value The time to auto zero should be less than 1 minute from achieving the aim value 6 Wait for a minimum of 20 seconds after auto zero before proceeding 7 Observe the measured ...

Page 83: ...tile memory Configuring and Enabling the IEEE 488 Facility To enable the IEEE 488 set the ADTS 405 to the SCPI IEEE option and set to Address 1 as follows Press and hold down F1 then press SETUP to enter the configuration menu Release both keys If requested enter PIN details Press MORE DISPLAY OPTIONS OPTIONS IEEE 488 SCPI OPT2 Check the display shows that SCPI is selected if the settings are corr...

Page 84: ...follows Set Address 1 as the talker listener address Make sure that bus time out periods are set sufficiently high e g 5 seconds Set the bus controller to send EOI with last byte and to expect EOI on last byte of received data Send interface clear IEEE 488 command Send SOURCE STATE OFF one space between STATE and OFF Send SOURCE STATE Instruct device 1 to TALK and input the response string The res...

Page 85: ...ION CONNECTOR PANEL The connector details are as follows d r a d n a t S n i P r o t c e n n o C r e b m u N n o i t c n u F d r a d n a t S n i P r o t c e n n o C r e b m u N n o i t c n u F 1 1 0 I D 3 1 5 0 1 D 2 2 0 1 D 4 1 6 0 1 D 3 3 0 1 D 5 1 7 0 1 D 4 4 0 1 D 6 1 8 0 1 D 5 I 0 E 7 1 N E R 6 V A D 8 1 2 d n G 7 D F R N 9 1 2 d n G 8 C A D N 0 2 2 d n G 9 C F I 1 2 2 d n G 0 1 Q R S 2 2 2 d...

Page 86: ...h keys Press MORE DISPLAY OPTIONS DISPLAY TYPE NEXT ENCODER Check the display shows Encoder is selected Press SAVE then repeatedly press CLEAR QUIT until the display shows the following Note With an incorrect bit combination such as all zeroes the display shows ENCODER ERROR in the place of the decoded value If the above procedure is unsuccessful check the continuity of the Altimeter Encoder cable...

Page 87: ...b a C e d o c 2 3 U A A r o t c e n n o c s n i p 1 B S L 4 C n w o r b B 3 2 C d e r C 5 1 C e g n a r o D 7 4 B w o l l e y E 9 2 B n e e r g F 1 1 1 B e u l b G 3 1 4 A t e l o i v H 2 2 2 A e t i h w J 2 1 A y e r g K 4 4 D k c a l b L c n B S M 2 D e s i o u q r o t c n 8 l a n g i s V 0 n o m m o c k n i p A 0 1 r e w o p V 0 n o m m o c d e r w o l l e y b M 4 1 r o t a r b i v V 4 2 e u l ...

Page 88: ...ss MORE DISPLAY OPTIONS OPTIONS ARINC 429 Check the display shows ARINC 429 is selected n o i t c n u F n i P r u o l o C e v t u p t u o 5 1 w o l l e y e v t u p t u o 6 1 e u l b e v t u p n i 8 1 n e e r g e v t u p n i 9 1 d e r h t r a e d n u o r G l l e h s Note If the ARINC 429 option is not fitted the value is replaced by absent If the above procedure is unsuccessful check the continuity...

Page 89: ...1 1 7 R O R R E R E L L O R T N O C s P 2 1 7 R O R R E R E L L O R T N O C s P 3 1 7 R O R R E R E L L O R T N O C s P 4 1 7 R O R R E R E L L O R T N O C s P 7 1 7 R O R R E R E L L O R T N O C s P 0 2 7 R O R R E R E L L O R T N O C t P 1 2 7 R O R R E R E L L O R T N O C t P 2 2 7 R O R R E R E L L O R T N O C t P 3 2 7 R O R R E R E L L O R T N O C t P 4 2 7 R O R R E R E L L O R T N O C t P ...

Page 90: ... h t f i s m e t s y s e r u s s e r p h g u o n e E R O F E B y l p p u s e r u s s e r p e r o t s e R n i a g a e d o m l o r t n o c o t g n i o g g n i d n i f t l u a f n i a m e h t o t r e f e R l a u n a m e c i v r e s e h t n i t r a h c 3 1 2 L I A F M U U C A V s P s s o l d e t c e t e d s a h r e l l o r t n o c s P e h T y l l a c i t a m o t u a d n a m u u c a v y l p p u s f o e...

Page 91: ... u s s e r p d e e p s r i a e v i t a g e n d i o v a o t 3 0 3 O O T T E S F F O O R E Z E G R A L o t u a g n i r u d d e r u s a e m t e s f f o o r e z e h T e d i s t u o s a w o r e z r o f t o p e d e c n a n e t n i a m o t n r u t e R n o i t a r b i l a c 4 0 3 K N A L B G N I Z I L A I T I N I S M O R P E E M E T S Y S e v a h S M O R P E E w e n f i s r u c c o y l n o s i h T e r a w...

Page 92: ...K114 Issue No 9 5 20 Testing and Fault Finding INTENTIONALLY LEFT BLANK ...

Page 93: ...UND PORT REMOTE PRINT EXECUTE TEST PROGRAM HELP SETUP s nudge up t nudge down 0 to 9 000 CLEAR QUIT ENTER decimal point Double key presses give ABORT CLEAR ENTER CONFIGURATION F1 SETUP 6 2 Main Pressure Display F1 F4 These function keys or soft keys are used to select choices from menus The menu choices may be shown directly over the keys or displayed as a list When a menu is displayed press the a...

Page 94: ...e and the display shows Qc The airspeed can be displayed and entered as either Calibrated Airspeed CAS Vc or True Airspeed TAS Vt Note For testing purposes Calibrated Airspeed equates to Indicated Airspeed IAS The Pt temperature value affects the calculation of TAS The value of Pt temperature normally measured by the aircraft temperature sensor can be changed by SETUP SPEED Qc Pt TEMPERATURE only ...

Page 95: ...etc this selects a total pressure Pt display If the altitude aim is changed after the entry of CAS the Mach and TAS aim values change while the CAS value remains unchanged If the altitude aim is changed after the entry of TAS or Mach the CAS aim value changes while the TAS and Mach values remain unchanged If the Ps aim is changed after the entry of Qc then the Pt aim value changes while the Qc rem...

Page 96: ... selects a Rate of Climb ROC or vertical speed display In pressure units mbar inHg etc this key selects a rate of change of Ps display SETUP UNITS can be used to change the units if set up mode is not switched off In Control Mode AIM display a new ROC or Ps rate can be entered using the numeric keys Use LEAK MEASURE CONTROL to change between Control and Leak Measure mode RATE TIMER The RATE TIMER ...

Page 97: ...and TIME periods can be changed using SETUP RATE TIMER providing SETUP lock is not enabled HOLD When HOLD is pressed a changing pressure is instantaneously held Pressing HOLD again releases the pressure to continue to the aim value The HOLD facility applies to both channels simultaneously and can be used to test pressure switches as follows Airspeed Switch Test Take the airspeed to a value just be...

Page 98: ...the numeric keys if the unit is in Control Mode Aim displayed Use LEAK MEASURE CONTROL to change between Control and Leak Measure mode If the automatic airspeed rate is selected using SETUP RATE the airspeed rate is automatically adjusted to simultaneously achieve both altitude and airspeed aim values This adjustment normally requires a reduction in the rate from the aim value the rate does not ex...

Page 99: ... Auto Leak recovery can be switched off using SETUP LEAK MEASURE CONTROL AUTO LEAK If negative airspeed or Qc occurs in measure mode the zero valve automatically opens for a period of one second to balance the airspeed or Qc This only applies when the minimum CAS or Qc limit is zero Note This only applies when the minimum CAS or Qc limit is zero Auto Limit recovery automatically regains control if...

Page 100: ...asured to update the stored ground pressure value the display shows the message CHECKING GROUND The ADTS 405 then reconnects to the system under test and equalizes the pressures The display shows the message Safe At Ground the ground and zero valves remain open so that the aircraft system permanently vents to atmosphere No commands can be entered when these two messages are displayed Press CLEAR Q...

Page 101: ... up to nine user readings e g Pilot Copilot Aux This facility requires a Centronics standard parallel interface printer of 80 or 132 column width This key causes a printout of the date and time followed by the measured value of the parameters A prompt asks for the entry of a reading which can consist of any characters A to Z 0 to 9 decimal point or minus in any order It can be used to enter the va...

Page 102: ...This displays the first of the available test programs The top line shows the file name and the second and third lines show the TITLE 2 Use NEXT or PREV to step through the available programs until the required program is displayed Press RUN to select the program 3 The display shows a menu allowing the following selections F1 Run all tests This starts the program from the beginning F2 Run specific...

Page 103: ...guration press the EXECUTE TEST PROGRAM key then F2 The display then shows the file name and title of the first file in the list Use NEXT and PREV to step through the files until the display shows the file to be deleted 3 Select DEL to delete the file then press CLEAR QUIT to quit from configuration 4 Select YES to confirm quit Note If the deleted program is marked as AUTO RUN then an additional s...

Page 104: ... the switch operates Record the pressure reading shown on the display Repeat this procedure using the until the switch returns to its original condition refer to section 3 for an example Holding the nudge function automatically repeats the function Record the pressure reading shown on the display See SETUP or to change the value of increment for the nudge facility CAUTION MAKE SURE THE NUDGE INCRE...

Page 105: ...te When 000 is pressed during entry of an aircraft name for limits or in the Print facility it always produces CLEAR QUIT During numeric entry CLEAR QUIT removes the new number and restores the previously entered number Note Once the ENTER key has been pressed the old number cannot be restored When menus are displayed CLEAR QUIT exits the menu generally to the previous display For those displays c...

Page 106: ...sequence Note The restart sequence starts with the display showing The ABORT function should only be used as a last resort When a restart is required after the system has shutdown displaying an error message As an emergency measure with a serious problem concerning the aircraft or component under test After this restart sequence the system vents at a safe rate both channels pitot and static to atm...

Page 107: ...ked in CONFIGuration mode preventing inadvertent changes such as aircraft limits at power up with a particular set of limits that must not be changed Attempting to change a locked parameter causes the display to show a warning message Pressing the SETUP key makes the set up functions available Pressing the function keys selects the set up menus using the appropriate function key selects the requir...

Page 108: ...ame Note The ADTS 405 when delivered contains Standard and Civil limits to set and store Max limits for the first time enter configuration The Max limits depend on the range of the pitot channel either 850 or 1000 knots see section 1 3 operating limits Use NEXT or PREV to step through the aircraft names select SEL and press QUIT when the display shows the required name Use CONFIG LIMITS to program...

Page 109: ...lect FREEZE to stop oscillation immediately SETUP MORE CONTROL Ps Pt DUAL Dual channel is the normal mode of operation where both Ps static and Pt pitot channels are connected to the unit or aircraft system under test To test instruments such as airspeed indicators with only the Pt pitot channel connected use SETUP MORE CONTROL Ps Pt DUAL and select Pt When using Pt ONLY the blanking cap must be r...

Page 110: ...units dual display 1st Key 2nd Key Upper Lower Press Press Display Display ALT SPEED ALT CAS or TAS ALT MACH ALT MACH Any key ROC ALT ROC SPEED RATE CAS or TAS RATE CAS MACH RATE MACH RATE MACH SPEED MACH MACH CAS TAS SPEED ALT ALT SPEED MACH ALT ALT MACH MACH SPEED MACH SPEED Aeronautical units dual display 1st Key 2nd Key Upper Lower Press Press Display Display Ps Qc Ps Qc Ps Pt Ps Pt Ps EPR Ps ...

Page 111: ...ays in the same way as a single display i e the single displayed parameter comes from the last key press with the lower half of the display screen showing any available data from the option 1st Key 2nd Key Display Press Press Any key SPEED ALT CAS or TAS Any key MACH ALT CAS or TAS MACH Any key ROC ALT CAS or TAS ROC SPEED RATE ALT CAS or TAS RATE CAS Any key ALT ALT CAS or TAS 1st Key 2nd Key Dis...

Page 112: ...h the aircraft system isolated but still connected All the normal functions of the ADTS 405 may be used in this mode Note For safety the output valves can only be closed when the ADTS 405 is at ground SETUP MORE OPEN OUTPUT VALVES This function opens the Ps and Pt output valves after using the CLOSE OUTPUT VALVES function Note For safety the output valves can only be opened when the ADTS 405 is at...

Page 113: ...ONAUTICAL SETUP SPEED AUTO ZERO This function enables or disables the auto zero function When enabled this optimizes airspeed accuracy at low airspeeds When enabled the ADTS 405 performs an auto zero when the following conditions are met 1 Ps and Pt pressures are stable 2 If in control mode a zero airspeed or Qc aim has been achieved 3 If in leak measure mode the airspeed is less than 20 knots or ...

Page 114: ...K114 Issue No 9 Reference and Specification 6 22 FIGURE 6 1 ALTITUDE CORRECTION RACK MOUNTING FIGURE 6 2 ALTITUDE CORRECTION ON AIRCRAFT ...

Page 115: ...function allows the Wait Time values to be set for F1 F2 and F3 of the RATE TIMER function To change the times Select the function to be changed F1 F2 or F3 Enter the WAIT value in minutes and seconds Enter 00 00 if a wait is not required Select TIME Enter the TIME value in minutes and seconds Press CLEAR QUIT Select another WAIT TIME or press CLEAR QUIT See the RATE TIMER for further details SET ...

Page 116: ... the display shows the error message Option Hardware not fitted Refer to the Line Switching Unit User Manual SETUP PRINT DATE TIME This function allows the system time and date to be set The time and date is maintained by a battery backed clock when the ADTS 405 is switched off Use TIME or DATE to select between time or date To change the time or date enter all six digits and press ENTER The date ...

Page 117: ...present value Use NEXT or PREV to display other parameters Press CLEAR QUIT when the nudge values of all the required parameters have been changed In aeronautical units the parameters available are ALT CAS TAS MACH ROC RATE CAS In pressure units the parameters available are Ps Pt Qc EPR RATE Ps RATE Qc RATE EPR The nudge value can be used for large increments e g 100 kts or 5000 ft to step through...

Page 118: ...NFIG mode SETUP LIMITS allows the selection of the set of limits to be used each set of limits is identified by an aircraft name or component system number Note The ADTS 405 when delivered contains Standard and Civil limits to set and store Max limits for the first time enter configuration The Max limits depend on the range of the pitot channel either 850 or 1000 knots see section 1 3 operating li...

Page 119: ... use the display shows after warm up A C in the lower right hand corner The altitude correction facility corrects for the pressure difference when the ADTS 405 and the aircraft system or components under test are at different heights If the ADTS 405 front panel is vertical use the altitude reference level shown on the front panel If the ADTS 405 front panel is horizontal use the altitude reference...

Page 120: ...play prompts for entry of the PIN Press each digit of the PIN in turn ENTER is not required as each digit is entered an asterisk appears If an incorrect PIN is entered the complete PIN is requested again When the correct PIN is entered the CONFIG menu appears The PIN may be changed using CONFIG 000 To use the configuration menu press the appropriate function key to select the required menu item To...

Page 121: ...NEXT or PREV to select the set of limits by aircraft name or component system name number when the display shows the required limits press SEL to edit the limit values Use NEXT or PREV to step through each limit or associated parameter in turn Enter a new numeric value to change a limit Press CLEAR QUIT when all required changes have been made and select YES to save changes The parameters are Name...

Page 122: ...ll set up mode using SETUP MACH see SET UP MACH for further details on Mach limits MAX ROC MAX RATE CAS These limits are the maximum rate of change for altitude and airspeed and only apply in aeronautical units MIN Ps MAX Ps MIN Qc MAX Qc These are the fundamental pressure unit limits MAX RATE Ps MAX RATE Qc These limits are the maximum rate of change for Ps and Qc and only apply in pressure units...

Page 123: ...set up modes using SETUP ALT See SETUP ALT for further details on altitude correction SAVING LIMITS When all limits and associated functions are set press CLEAR QUIT to exit the limit editing screen If changes have been made the display shows a request for confirmation before saving the changes If the system detects any errors e g duplicate aircraft names values out of range or editing system defi...

Page 124: ... of the limits Select SEL to clear the limits followed by YES CONFIG LIMITS LOCK AIRCRAFT This function prevents changes to the default limits If lock is ON no changes to the power up default aircraft limits can be made from set up CONFIG LIMITS DEFAULT AIRCRAFT This function selects the set of limits used at power up Use NEXT or PREV to display the name of the required limits Select SEL CONFIG MO...

Page 125: ...F This mode prevents access to all secondary functions CONFIG SPEED AUTO ZERO CONFIG equivalent of SETUP function CONFIG SPEED CAS TAS CONFIG equivalent of SETUP function CONFIG SPEED Pt TEMPERATURE CONFIG equivalent of SETUP function CONFIG RATE TIMER CONFIG equivalent of SETUP function CONFIG RATE CONFIG equivalent of SETUP function CONFIG LEAK MEASURE AUTO LEAK ON OFF CONFIG equivalent of SETUP...

Page 126: ...aded test program to operate Execute Test Program on power up See the Test Program Manager User Manual for further details CONFIG ETP ERASE PROGRAMS Removes a down loaded test program from non volatile memory See the Test Program Manager User Manual for further details CONFIG ETP RESULT Configures the PRINT SAVE mode as in set up mode Selects and deletes a result file stored in the ADTS 405 CONFIG...

Page 127: ...trol set point operating into a leak tight system no air is consumed A single vacuum source is adequate for the rates detailed into the volumes listed with no crosstalk between Ps and Pt channels A pump capable of 14 litres min 0 39 cubic ft min is required The air pressure source should be clean dry air at a pressure of 3 to 6 bar 45 to 90 psi with the ADTS 405 having an internal regulator to pro...

Page 128: ...a 1000 knots capability test systems Variations for 850 knots test systems are shown where appropriate in brackets For both full scale ranges limits are set pre defined tabular limits known as STANDARD CIVIL and MAX these can be selected through the SETUP menu Note The ADTS 405 is supplied without MAX limits a prompt in the SETUP limits menu asks for MAX limits to be created This function automati...

Page 129: ... 0 1 o t 0 0 1 5 0 0 7 y c a r u c c A 2 0 t a 3 0 0 0 0 3 t a 7 0 0 0 0 6 t a 9 2 e u l a v f o 1 0 5 t a 5 0 0 5 5 t a 7 0 0 0 0 0 1 t a 5 0 0 n a h t r e t t e B 5 0 0 0 e u l a v f o 5 y t i l i b a t a e p e R 0 t a 1 0 0 0 0 3 t a 2 0 0 0 0 6 t a 7 5 0 0 5 t a 4 0 0 5 5 t a 2 0 0 0 0 0 1 t a 2 0 0 1 0 0 0 o t g n i s i r 5 0 0 0 n o i t u l o s e R 1 1 1 0 1 0 0 0 1 0 NOTES 1 Altitudes above...

Page 130: ... a d n a t S e g n a R 1 5 5 3 1 o t 5 3 0 0 2 0 0 5 3 o t 5 3 0 0 5 2 o t 0 2 3 1 0 0 2 0 1 o t 1 0 y c a r u c c A 2 1 0 5 n i h t i w 1 s d n o c e s G D R 2 1 0 0 S F 7 0 0 0 t P d n a s P f o S S R 5 n i h t i w 1 s d n o c e s n a h t r e t t e B 5 0 0 0 y t i l i b a t a e p e R 5 0 0 5 0 7 1 0 o t 5 0 0 n o i t u l o s e R 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 NOTES 1 Pressures below 35 mb...

Page 131: ...applied after an excursion between minimum and maximum of the range i e including hysteresis The repeatability does not include curve fit errors Accuracy Accuracy figures stated include curve fit errors repeatability and temperature effects over the range 5 C to 35 C 41 to 95 F The ADTS 405 can achieve the stated accuracy after a 15 minute warm up period ...

Page 132: ... aeronautical or pressure units The following are possible Ps ft min or metres min max rate 100 000 ft min absolute pressure units min Pt absolute pressure units min Qc kts min or km h min max rate 2 000 kts min differential pressure units min Using single vacuum pump a rate of 20 000 ft min can be achieved with a volume of 10 litres 600 cubic inches connected to the static Ps channel and 6 7 litr...

Page 133: ...els Frequency and amplitude of the required oscillation can be programmed external volumes limit the achievable results Maximum drift from the mean value during dynamic testing should be no more than twice that specified for steady state testing Control Offset The displayed value will be within the control stability values for the appropriate channel ...

Page 134: ... may be present around an aircraft The amount of explosive vapour varies and depends on local conditions such as hangar ventilation prevailing metrological conditions and the density of explosive vapours The local conditions must be assessed and the dimensions x metre of the hazardous area defined by the local engineering and safety officials THE POWER SUPPLIES MUST BE ISOLATED WHEN CONNECTING ELE...

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