GE Druck ADTS 505 User Manual

Page 1
GE
Measurement & Control
Druck ADTS 505 Air Data Test Set
User Manual K0260
Page 2
© 2013 General Electric Company. All Rights Reserved. Specifications are subject to change without notice. GE is a registered trademark of General Electric Company. Other company or product names mentioned in this document may
be trademarks or registered trademarks of their respective companies, which are not affiliated with GE.
Page 3
K0260 Issue No. 8
Introduction
This technical manual provides operating instructions for the Air Data Test System compatible
with the requirements of first line operation for the technician and supervisor.
Scope
This technical manual contains a brief description, operation and testing procedures for the
user of this equipment with software version V1.08.
Safety
The manufacturer has designed this equipment to be safe when operated using the
procedures detailed in this manual. Do not use this equipment for any other purpose than that stated, the protection provided by the equipment may be impaired.
This publication contains operating and safety instructions that must be followed to make sure
of safe operation and to maintain the equipment in a safe condition. The safety instructions are either warnings or cautions issued to protect the user and the equipment from injury or damage.
Use qualified* technicians and good engineering practice for all procedures in this publication.
PIN Protection
The ADTS 505 contains two protected menus, the operating limits (described in this manual) and the maintain calibration menu (described in the calibration manual). The factory set PIN codes are contained in an envelope addressed to the Supervisor.
IMPORTANT NOTE
Change these codes for authorised access. Unauthorised access to these two menus can make this system inaccurate and could, in control mode, cause excessive rates of pressure change.
Pressure
Do not apply pressure greater than 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
carried out by authorized service agents or the manufacturer’s service departments
Technical Advice
For technical advice contact the manufacturer or subsidiary.
* A qualified technician must have the necessary technical knowledge, documentation, special test
equipment and tools to carry out the required work on this equipment.
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K0260 Issue No. 8
Associated Publications
This lists the manuals and publications referenced in this manual.
Calibration Manual K272
Air Data Test Set ADTS 505
Quick Reference Guide K274
Air Data Test Set ADTS 505
Approved Service Agents
Markings and Symbols
This equipment meets the requirements of all relevant European safety directives. The equipment carries the CE mark.
This symbol, on the instrument, indicates that the user should refer to the user manual. This symbol, in this manual, indicates a hazardous operation.
Do not dispose of this product as household waste. Use an approved organisation that collects and/or recycles waste electrical and electronic equipment. For more information, contact one of these:
our customer service department (contact us at www.ge-mcs.com)
your local government office
Approved Service Agents
For a list of approved service agents, visit our website: www.ge-mcs.com
Internet www.ge-mcs.com
Druck ADTS 505 User Manual
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K0260 Issue No. 8
Table of Contents
Preliminary pages
Introduction .................................................................................................................................................................................. ............... i
Scope .................................................................................................................................................................................. ............... i
Associated Publication................................................................................................................................................................... ............... ii
Approved Service Agents.............................................................................................................................................................. ............... ii
Table of contents (this table)....................................................................................................................................................... ............... iii
Abbreviations .................................................................................................................................................................................. ............... vii
Glossary .................................................................................................................................................................................. ............... ix
Pressure units and conversion factors................................................................................................................................. ...............xi
Section Title page
1 DESCRIPTION
1.1 Introduction......................................................................................................................................................... ............... 1-1
1.2 Operating Limits............................................................................................................................................... ............... 1-3
2INSTALLATION
2.1 Packaging ........................................................................................................................................................... ...............2-1
2.2 Packaging for Storage and Transportation....................................................................................... ............... 2-1
2.3 Return Goods Procedure............................................................................................................................. ............... 2-3
2.4 Electrical Connection..................................................................................................................................... ............... 2-6
2.5 Pneumatic Pressure Connection............................................................................................................. ............... 2-7
2.6 Positioning of the ADTS 505....................................................................................................................... ...............2-8
3OPERATION
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
3.4.1..... Operating Modes............................................................................................................................ ............... 3-6
3.5 Operation and Example Procedures..................................................................................................... ............... 3-10
3.5.1..... Operating Procedures.................................................................................................................. ............... 3-10
3.5.2..... Power-up............................................................................................................................................. ............... 3-10
3.5.3..... Control or Measure Parameter................................................................................................ ............... 3-11
3.5.4..... Leak Testing the ADTS 505......................................................................................................... ...............3-11
3.5.5..... Changing the Units of Measurement.................................................................................... ............... 3-13
3.5.6..... Setting Limits..................................................................................................................................... ............... 3-13
3.6 Tests Before Use.............................................................................................................................................. ............... 3-15
3.6.1..... Aircraft System Protection......................................................................................................... ...............3-15
3.7 Testing Aircraft Systems or UUT.............................................................................................................. ............... 3-15
3.7.1..... Testing the Aircraft Static System........................................................................................... ............... 3-16
3.7.2..... Testing the Aircraft Pitot System............................................................................................. ............... 3-17
3.7.3..... Combined Testing of the Aircraft Pitot and Static Systems........................................ ............... 3-18
3.7.4..... Mach Test and Constant Mach................................................................................................ ...............3-19
3.7.5..... Leak Testing....................................................................................................................................... ............... 3-20
3.7.6..... Airspeed Switch Test..................................................................................................................... ............... 3-21
3.7.7..... Engine Pressure Ratio (EPR)....................................................................................................... ............... 3-22
3.7.8..... Go To Ground.................................................................................................................................... ............... 3-23
CONTENTS
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K0260 Issue No. 8
Table of Contents (contd)
Section Title page
3.8 Manual Venting of the Aircraft Pitot and Static Systems............................................................. ............... 3-24
3.9 ADTS 505 Options............................................................................................................................................ ...............3-24
3.10 Set-up Reference............................................................................................................................................. ...............3-25
4MAINTENANCE
4.1 Introduction......................................................................................................................................................... ............... 4-1
4.2 Materials and Tools......................................................................................................................................... ............... 4-2
4.3 Maintenance Tasks......................................................................................................................................... ...............4-3
4.4 Routine Maintenance..................................................................................................................................... ............... 4-4
5 TESTING AND FAULT FINDING
5.1 Introduction......................................................................................................................................................... ............... 5-1
5.2 Standard Serviceability Test...................................................................................................................... ............... 5-2
5.3 Fault Diagnosis................................................................................................................................................. ............... 5-3
5.4 Warnings and Self-test Errors.................................................................................................................. ............... 5-3
5.5 Further Testing.................................................................................................................................................. ...............5-6
5.6 Fault Finding....................................................................................................................................................... ............... 5-14
6 REFERENCE and SPECIFICATION
6.1 Introduction......................................................................................................................................................... ............... 6-1
6.2 Key-pad Selections and Functions......................................................................................................... ............... 6-1
F1 - F6................................................................................................................................................................... ............... 6-1
ALT/Ps................................................................................................................................................................... ............... 6-2
SPEED Qc.............................................................................................................................................................. ............... 6-2
MACH..................................................................................................................................................................... ............... 6-3
ROC Ps RATE........................................................................................................................................................ ............... 6-3
RATE....................................................................................................................................................................... ............... 6-4
LEAK MEASURE/CONTROL.......................................................................................................................... ............... 6-5
GROUND................................................................................................................................................................ ............... 6-5
0 to 9...................................................................................................................................................................... ............... 6-6
-000........................................................................................................................................................................ ............... 6-6
CLEAR/QUIT......................................................................................................................................................... ............... 6-6
DELETE................................................................................................................................................................... ............... 6-6
HELP....................................................................................................................................................................... ............... 6-7
ENTER.................................................................................................................................................................... ............... 6-7
CLEAR/QUIT + ENTER (ABORT)................................................................................................................... ............... 6-7
Main Menu........................................................................................................................................................... ............... 6-8
[Rate Timer]......................................................................................................................................................... ............... 6-8
[Units].................................................................................................................................................................... ............... 6-9
[EPR]....................................................................................................................................................................... ............... 6-10
[Hold]..................................................................................................................................................................... ............... 6-10
Nudge [ or ]............................................................................................................................................... ............... 6-10
6.3 SETUP .................................................................................................................................................................... ............... 6-11
6.3.1..... Set-up 1 of 2....................................................................................................................................... ............... 6-11
...............[Display],[Single, Dual, Quad, Hand Term]........................................................................... ............... 6-11
Druck ADTS 505 User Manual
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K0260 Issue No. 8
Table of Contents (contd)
Section Title page
[Units].................................................................................................................................................................... ............... 6-12
[Limits]................................................................................................................................................................... ............... 6-13
[Alt. Corr.].............................................................................................................................................................. ............... 6-15
[Date Format]..................................................................................................................................................... ...............6-16
6.3.2..... Set-up 2 of 2....................................................................................................................................... ............... 6-17
...............[Operational Hours]....................................................................................................................... ............... 6-17
...............[Software Versions]........................................................................................................................ ............... 6-17
...............[Security].............................................................................................................................................. ...............6-17
...............[Maintain Calibration]................................................................................................................... ............... 6-17
...............[Auto Leak].......................................................................................................................................... ...............6-18
6.4 Other Features................................................................................................................................................... ............... 6-19
Elapsed Time Counter.................................................................................................................................... ............... 6-19
...............Auto Zero............................................................................................................................................. ............... 6-19
...............Hand Terminal Option A.............................................................................................................. ............... 6-19
...............Hand Terminal Option B.............................................................................................................. ............... 6-19
............... ...............Template Format for Creating Test Sequence Files....................................... ............... 6-32
............... ...............Option B Advanced Hand Terminal Specification........................................... ...............6-41
6.5 Specification........................................................................................................................................................ ............... 6-42
CONTENTS
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K0260 Issue No. 8
Table of Illustrations
Figure Title page
1-1 ADTS 505 General View............................................................................................................................... ............... 1-2
2-1 ADTS 505 Accessories................................................................................................................................... ............... 2-4
2-2 ADTS 505 Altitude Correction On-aircraft........................................................................................... ...............2-9
2-3 ADTS 505 Altitude Correction Off-aircraft........................................................................................... ............... 2-9
2-4 ADTS 505 General View............................................................................................................................... ............... 2-10
3-1 Key-pad and Display...................................................................................................................................... ............... 3-3
4-1 Fuse Replacement........................................................................................................................................... ............... 4-5
5-1 Fault Finding Chart......................................................................................................................................... ............... 5-4
5-2 System Screen for Diagnosis.................................................................................................................... ............... 5-7
5-3 System Screen................................................................................................................................................... ............... 5-9
5-4 Key-pad Test Display..................................................................................................................................... ............... 5-10
6-1 ARINC 565 Limits Graph.............................................................................................................................. ............... 6-14
6-2 Altitude Correction On-aircraft................................................................................................................ ............... 6-15
6-3 Altitude Correction Off-aircraft................................................................................................................ ............... 6-16
6-4 Interconnection................................................................................................................................................ ............... 6-20
6-5 Power-up Displays.......................................................................................................................................... ............... 6-21
6-6 Main Menu Screen.......................................................................................................................................... ...............6-22
6-7 Main Menu Structure..................................................................................................................................... ............... 6-23
6-8 Manual Control Selections......................................................................................................................... ............... 6-24
6-9 Set-up Menu Selections............................................................................................................................... ............... 6-27
6-10 Test Sequence Selections........................................................................................................................... ............... 6-30
6-11 Customer Test Sequence File Selections............................................................................................. ............... 6-31
6-12 System Status..................................................................................................................................................... ............... 6-38
6-13 Example Error Screen.................................................................................................................................... ............... 6-39
List of Tables
Table Title page
2-1 Parts List............................................................................................................................................................... ............... 2-5
4-1 Maintenance Chart......................................................................................................................................... ............... 4-1
4-2 Materials List....................................................................................................................................................... ............... 4-2
4-3 Tool and Test Equipment Requirements.............................................................................................. ............... 4-2
5-1 Fault Finding ...................................................................................................................................................... ............... 5-5
5-2 System Screen Information....................................................................................................................... ............... 5-8
5-3 Error Messages................................................................................................................................................. ...............5-14
5-4 Warning Messages......................................................................................................................................... ............... 5-15
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K0260 Issue No. 8
Abbreviations
The following abbreviations are used in this manual; the abbreviations are the same in the singular and plural.
AAmpere abs Absolute a.c. Alternating current ADTS Air Data Test Set ALT Altitude ARINC Air Radio Incorporated ASI Airspeed indicator CAS Calibrated airspeed COSHH Control of Substances Hazardous to Health Regulations cm Centimetre d.c. Direct current Def Define e.g. For example EPR Engine pressure ratio etc. And so on °F Degrees Fahrenheit Fig. Figure ft Foot g Gauge hHour HBC High breaking capacity Hg Mercury hm Hecto metre Hz Hertz IAS Indicated airspeed i.e. That is in Inch kg Kilogram km Kilometre kts Knots LCD Liquid crystal display mMetre mA Milliampere max Maximum mbar Millibar min Minute or minimum mm Millimetre mph Miles per hour MSDS Material safety data sheet mV Millivolts No. Number PIN Personal identification number Ps Static pressure psi Pounds per square inch Pt Total pressure (Pitot) Qc Differential pressure Ps-Pt QFE Local atmospheric pressure QNH Barometric pressure at sea level
Abbreviations
Page 10
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K0260 Issue No. 8
Abbreviations (contd)
RGA Return Goods Authorization (Druck procedure) RH Relative humidity RMS Root mean square ROC Rate of climb Rt Rate SST Standard serviceability test VVolts +ve Positive
-ve Negative °C Degrees Celsius °F Degrees Fahrenheit
Druck ADTS 505 User Manual
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K0260 Issue No. 8
Glossary
Terminology
The terminology used in this manual is specific and individual interpretation must not be introduced. The terms are defined as follows:
Adjust To bring to a more satisfactory state; to manipulate controls, levers, linkages, etc. to return equipment
from an out-of-tolerance condition to an in-tolerance condition.
Align
To bring into line; to line up; to bring into precise adjustment, correct relative position or coincidence.
Assemble
:To fit and secure together the several parts of; to make or form by combining parts.
Calibrate
: To determine accuracy, deviation or variation by special measurement or by comparison with a
standard.
Check:
Make a comparison of a measure of time, pressure, temperature, resistance, dimension or other quality with a known figure 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 Specialists to ensure it has been performed satisfactorily.
Install
: To perform operations necessary to properly fit an equipment unit into the next larger assembly or
system.
Maintain
: To hold or keep in any particular state or condition especially in a state of efficiency or validity.
Operate
: Make sure that an item or system functions correctly as far as possible without the use of test
equipment or reference to measurement.
Readjust
: To adjust again; to move back to a specified condition; to bring back to an in-tolerance condition.
Reconnect
:To rejoin or refasten that which has been separated.
Refit
: Fit an item which has previously been removed.
Glossary
Page 12
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K0260 Issue No. 8
Remove: To perform operations necessary to take 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 desired position, adjustment or condition.
Service
: To perform such operations as cleaning, lubricating and replenishing to prepare for use.
Test
: Ascertain by using the appropriate test equipment that a component or system functions correctly.
Druck ADTS 505 User Manual
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K0260 Issue No. 8
Table of pressure units and conversion factors
Unit Conversion To convert FROM pressure VALUE 1 in pressure UNITS 1
TO pressure VALUE 2 in pressure UNITS 2, calculate as follows:
VALUE 2 = VALUE 1 x FACTOR 1
FACTOR 2
Note:
The conversion factor for pressure units referenced [1] are calculated for a water temperature of 4°C. Pressure units referenced [2] are calculated for a water temperature of 68°F these units are normally used in the USA.
tinuerusserP )slacsaP(rotcaF tinuerusserP )slacsaP(rotcaF
rab000001tf/fbl
2
3088.74
ni/fbl
2
)isp(67.4986gHni93.6833
Hm
2
O56.6089Hni
2
]1[O980.942
rabm001Htf
2
]1[O70.9892
mc/fgk
2
5.66089mta0.523101
m/fgk
2
56608.9tf/ldp
2
61884.1
gHmm223.331mc/nyd
2
1.0
gHmc22.3331rabh00000001
gHm0.223331tf/fnot
2
)KU(0.252701
H/mm
2
]1[O56608.9ni/fnot
2
)KU(00344451
H/mc
2
]1[O5660.89Hni
2
]2[)ASU(O53146.842
m/N
2
1Htf
2
]2[)ASU(O3896.3892
aPh001mm/Pk
2
0566089
aPk0001mc/Pk
2
5.66089
aPM0000001m/Pk
2
56608.9
rrot223.331
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K0260 Issue No. 8
Druck ADTS 505 User Manual
Page 15
Description 1 - 1
K0260 Issue No. 8
1
1INTRODUCTION
1.1 Introduction
The ADTS 505 is a self-contained flight-line air data test system, enclosed in an ABS case. The
unit provides complete pressure and vacuum measuring and control for on-aircraft sense and leak testing, functional tests of air data instruments, components and systems.
The ADTS 505 displays and operates in either units of pressure measurement or aeronautical
units. In the control mode, the rate that the pressures change towards new set-points can be controlled in true aeronautical rate units.
There are two independent pneumatic channels connect to the aircraft or instrument systems,
one for static and one for pitot. They can be operated as measure only channels with leak testing facilities or each can be control channels producing true pressure conditions for altitude and airspeed. Two pneumatic outlet ports, on the front panel and identified as Ps (static) and Pt (pitot) provide connection to the aircraft system or unit under test.
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 user when both channels are safely at `ground'.
Pre-defined sets of limits, stored in the system, prevent excessive pressures and rates
damaging aircraft systems and components. A further five sets of operating limits can be defined by the supervisor or quality assurance engineer. The user can select sets of limits but cannot change the values.
The user interface is either the key-pad and display on the front panel or one of two types of
optional hand terminal connected to the front panel. The two types of hand terminal are identified as option A and option B.
The option A hand terminal contains all the facilities of the front panel key-pad and display.
The key-pad contains fixed function keys used to select various parameters, modes and enter numeric values. The display shows various menus, each menu provides selections using six menu-defined function keys.
The option B advanced hand terminal is a computer-based device that contains all the facilities
of option A on a touch-sensitive, Windows® display, colour screen. It also up-loads and down­loads user-defined test programs and displays the resulting test data.
The integral pumps of the ADTS 505, produce pressure and vacuum supplies for the unit's
controlling requirements. The power supply connection for the unit is located on the front panel.
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1 - 2 Druck ADTS 505 User Manual
K0260 Issue No. 8
FIGURE 1-1 ADTS 505 GENERAL VIEW
Option A Hand Terminal
Option B Hand Terminal
Air DataTest Set - HandTerminal
Leak Measur
e
LEAK MEASURE MODE
Mach
0.001
Mach
DO NOT
OBSTRUCT
THESE VENTS
WATER
DRAIN
Advanced Hand TerminalAdvanced Hand Terminal
g
T5.0A 250V
HBC
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Description 1 - 3
K0260 Issue No. 8
1
1.2 Operating Limits
The ADTS 505 is supplied with the following pre-defined operating limits.
Civil Limits
Parameter Limit
MIN ALT -1,000 ft MAX ALT 50,000 ft MIN CAS 0.0 knots MAX CAS 450.0 knots MAX MACH 1.000 Mach MAX ROC 6,000 ft/min ARINC LIMITS OFF ALT CORRECTION 0 ft MIN Ps 115.972 mbar MAX Ps 1050.406 mbar MIN Qc 0.0 mbar MAX Qc 368.01 mbar MAX Rate Ps 109.85 mbar/min MAX Rate Qc 109.85 mbar/min
Standard Limits
Parameter Limit
MIN ALT -2,000 ft MAX ALT 60,000 ft MIN CAS 0.0 knots MAX CAS 650.0 knots MAX MACH 1.732 Mach MAX ROC 10,000 ft/min ARINC LIMITS OFF ALT CORRECTION 0 ft MIN Ps 65.00 mbar MAX Ps 1088.6 mbar MIN Qc 0.0 mbar MAX Qc 866.00 mbar MAX Rate Ps 200 mbar/min MAX Rate Qc 200 mbar/min
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1 - 4 Druck ADTS 505 User Manual
K0260 Issue No. 8
Max Limits
Parameter Limit
MIN ALT -2,000 ft MAX ALT 60,000 ft MIN CAS 0.0 knots MAX CAS 650.0 knots MAX MACH 2.800 Mach MAX ROC 40,000 ft/min ARINC LIMITS OFF ALT CORRECTION 0 ft MIN Ps 10.90 mbar MAX Ps 1355.00 mbar MIN Qc -1355.00 mbar MAX Qc 2490.00 mbar MAX Rate Ps 1000 mbar/min MAX Rate Qc 1000 mbar/min
EPR Limits
Parameter Limit
MIN INLET 27.0 mbar MAX INLET 1355.0 mbar MIN OUTLET 27.0 mbar MAX OUTLET 2500.0 mbar MIN EPR 0.1 MAX EPR 10.0 MIN INLET RATE 0 MAX INLET RATE 1000 mbar/min MIN EPR RATE 0 MAX EPR RATE 60 EPR/min
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Druck ADTS 505 User Manual 2 - 1
K0260 Issue No. 8
2
2 INSTALLATION
2.1 Packaging
On receipt of the ADTS 505 check the contents of the packaging against the following lists: i) ADTS 505 Air Data Test Set ii) Power supply cable - 5 m, no line plug (regional line plugs require option C) iii) Option A
comprising:
Hand terminal Hand terminal cable - 18 m (option A only) 5 m hose - red 5 m hose - blue Accessory Bag
iv) Option B
comprising:
Advanced hand terminal Hand terminal cable - 18 m (option B only) Cable, communications Cable, power supply Power pack
Accessory Bag v) 3 m hose - red vi) 3 m hose - blue vii) User Manual (this publication) viii) Quick Reference Guide K0274 ix) Kit, fuse/o-ring (also see Figure 2-1, item1)
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 procedure.
2. To return the unit for calibration or repair complete the return goods procedure as
detailed in 2.3.
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2 - 2 Installation
K0260 Issue No. 8
Procedure
The unit should be at zero/ambient pressure. Disconnect the hose assemblies and stow in the
lid.
Switch OFF and disconnect from the electrical power supply. Disconnect the power
supply cable and the hand terminal cable. Disconnect the hand terminal cable from the hand terminal.
Fit the lid to the unit.
The power supply cable, hand terminal cable and the hand terminal should be placed
in the original packing material.
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 prevent equipment movement within
the container.
Seal carton with approved sealing tape.
Mark carton “FRAGILE” on all sides, top, and bottom of shipping container.
To return the unit for calibration or repair complete the return goods procedure as detailed in 2.3.
Environment
The following conditions apply for both shipping and storage:
Temperature Range........... ............-20 to +70°C (-4 to +158°F)
Altitude......... ............Up to 15,000 feet (4,570 metres)
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Druck ADTS 505 User Manual 2 - 3
K0260 Issue No. 8
2
2.3 Returned Goods Procedure
Should the unit require calibration or become unserviceable it can be returned to the Druck Service Department.
Please contact our Service Department, either by 'phone, fax or E-mail, to obtain a Returned Goods Authorization (RGA) number or (Return Material Authorization [RMA] in USA), providing the following information:
Product (i.e. ADTS 505) Serial number Details of defect/work to be undertaken Calibration traceability requirements Operating conditions
Safety Precautions
You must also tell us if the product has been in contact with anything hazardous or toxic and, the relevant COSHH (MSDS in USA) references and precautions to be taken when handling.
IMPORTANT NOTICE
Service or calibration by unauthorized sources will affect the warranty and may not guarantee further performance
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2 - 4 Installation
K0260 Issue No. 8
FIGURE 2-1 ADTS 505 ACCESSORIES
Air Data Test S
et - Hand T
erminal
Leak Measure
LMEAK EASURE MODE
M
ach
0
.0
0
1
Mach
Advanced Hand TerminalAdvanced Hand Terminal
g
191-198
2
1
5
18m
3A
6
9
12
13
11
Note: Item 13 supplied for the country of use
10
18m
4
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Druck ADTS 505 User Manual 2 - 5
K0260 Issue No. 8
2
# not illustrated † alternative
TABLE 2-1 PARTS LIST
No Part Number Description
Qty per
assy
1
AS505-18-3124M0
Kit, fuse/o-ring comprising: o-ring AN4 fuse, T5.0A/250V HBC
1
2
AS505-53-3124M0
comprising: Hose, red, ST/OPN, AN4, 3m
1
Hose, blue, ST/OPN, AN4, 3m
1
3A
AS505-40-3124M0 Cable, AC Power, 5M (open end)
1
3B#
AS505-40-3124M0 Cable, AC Power, 5M (250V UK plug)
1
3C#
AS505-41-3124M0 AC Power, 5M (115V US plug)
1
3D#
AS505-42-3124M0 AC Power, 5M (250V European plug)
1
4
AS505-56-3124M0
Option A Hand terminal Assembly
1
4.1#
-
Option A and B Hose, red, 5M Hose, blue, 5M
1
5
AS505-54-3124M0
Option A Cable, Hand terminal 18M (option)
1
6
AS505-57-3124M0
Option A and B Bag, Accessory, Hand Terminal
1
7#
AS505-60-3124M0 Handbook, User Manual, K0260
1
8#
AS505-61-3124M0 Handbook, Calibration Manual, K0272
1
9
AS505-56-3124M1
Option B Hand terminal, Advanced
1
10
AS505-54-3124M1
Option B Cable, Hand terminal 18M, Safety marking (option)
1
11
AS204-06-3435M0 Cable, Communications PC
1
12
AS204-07-3435M0 Power pack
1
13
- part of item 12 -Adaptor, power pack (comprising: 4)
1
14
AS204-10-3435M0 Stylus, pack (comprising: 3)
1
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2 - 6 Installation
K0260 Issue No. 8
2.4 Electrical Connection
WARNING: VOLTAGES IN EXCESS OF 30 VOLTS (RMS) AC OR 50 VOLTS DC, IN CERTAIN
CIRCUMSTANCES, CAN BE LETHAL. CARE MUST BE TAKEN WHEN WORKING ON LIVE, EXPOSED CONDUCTORS.
Power Supply Connection
The unit must be connected to the correct electrical power supply as stated, adjacent to the power connector.
Open end cables Only a qualified technician (see page i) must fit a connector to a cable supplied by GE (see Table 2-1, item 3).
CAUTIONS:
1T
HE SUPPLY MUST PROVIDE CONNECTION TO A PROTECTIVE GROUND TERMINAL. THE UNIT MUST, AT
ALL TIMES, BE CONNECTED TO THE SUPPLY EARTH (GROUND).
2T
HE POWER SUPPLY CABLE AND CONNECTOR MUST BE CORRECTLY RATED FOR THE POWER SUPPLY.
Note: The ADTS 505 is normally supplied with an approved power supply cable for use in the country
o f d e li ve ry . T hi s c an li mi t t he ma xi mu m s up pl y v ol ta ge th at ca n b e s af el y u se d. 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.
Make sure that the power supply is off before connecting the power cable. If required, connect the hand terminal to the connector on the front panel.
Note: Connecting the hand terminal to the unit disables the front panel key-pad.
Fuses
The two fuses, located in the holders and mounted on the front panel, protect the unit. The fuses are connected in the live and neutral supply circuit and are T5.0A/250V HBC type.
Note: Only replace the fuses with the correct type, see Figure 2-1 item1, to replace see section 4-5.
External earth/ground connection
An external earth (ground) cable may be connected to the stud on the front panel of the unit
providing integrity of the earth (ground) connection.
F
IGURE 2-2 POWER SUPPLY LABEL
Pin
(ADTS)
European
Colour
U.S.
Color
Function
1
Brown Black Live
4
Blue White Neutral
Centre
Green/Yellow Green Protective Earth (Ground)
100 / 120 / 230V ~ 50 / 60Hz 200VA
115V ~ 400Hz 200VA
Page 25
Druck ADTS 505 User Manual 2 - 7
K0260 Issue No. 8
2
Connection
The ADTS 505 provides a power supply to the advanced hand terminal when connected to the hand terminal connector on the front panel.
The power supplies must be isolated when connecting the advanced hand terminal in the hazardous area.
Using the advanced hand terminal when not connected to the ADTS 505
Using the advanced hand terminal with a pc to create test scripts.
The unit must be connected to the correct electrical power supply, see paragraph 2.4.
Before use, make sure the SELV power adaptor supplied with the instrument is correct for the power supply voltage. The Safety Extra Low Voltage (SELV) power adaptor complies with EN61010 (including safety requirements for laboratory instruments).
Note: The instrument can be powered from other DC power supplies of the correct voltage range. It
is the user’s responsibility to make sure the power supply is safe.
Make sure that the power supply is off before connecting the power cable.
Communications Connection
Communications cable - parts list item 11
2.5 Pneumatic Pressure Connections
Ps (static)- AN4 (MS33656-4) Pt (pitot)- AN4 (MS33656-4)
When not in use, a blanking cap must be fitted.
Note: When carrying out a leak test, a leak of this blanking cap affects the performance of the ADTS 505.
Pin No. ADTS
1
2
BLK
BLK-W
Function
Connector
Cable
Colour
0V
+ VIN
Jack plug outer
Jack plug inner
3
5
4
RED
RS232 Tx
PIN 2
PIN 3
PIN 5
BLK
GRN
RS232 0V
RS232 Rx
Page 26
2 - 8 Installation
K0260 Issue No. 8
2.6 Positioning of the ADTS 505
WARNING: IN AN ENCLOSED AREA WITH FUEL VAPOUR PRESENT THIS EQUIPMENT MUST BE
PLACED AT LEAST 0.5 METRES ABOVE FLOOR LEVEL. THIS EQUIPMENT CONTAINS A D.C. MOTOR WITH BRUSHES THAT COULD CAUSE A SPARK.
C
AUTION:TO OPERATE, PLACE THE UNIT ON A HORIZONTAL SURFACE (FRONT PANEL UPPERMOST) OR VERTICALLY
(
POWER SUPPLY CONNECTOR UPPERMOST) THIS ALLOWS THE WATER IN THE WATER FILTER TO VENT.
W
ATER COULD CONTAMINATE THE CONTROLLER MANIFOLD AND AFFECT CONTROLLER PERFORMANCE.
Note: In control mode, the water drain, located at one end of the unit near the carrying handle, produces
a flow of air and some water. The amount of water depends on the humidity and the operating time in control mode.
C
AUTION:BEFORE USE, CHECK THE WATER DRAIN PIPE, IT MUST BE FREE OF OBSTRUCTION. WHEN IN CONTROL
MODE CHECK THAT A SMALL FLOW OF AIR COMES OUT OF THE DRAIN PIPE.
Notes:
1 When checking for a small flow of air do not block the drain pipe completely this causes a back-
pressure in the pipe and controller instability.
2 If no air flows from the drain pipe, when in control mode, switch off and start again. If no air
flows after a re-start, switch off and do not use the ADTS 505, return the unit to the repair depot.
C
AUTION: THE SIDE VENTS MUST NOT BE OBSTRUCTED, THIS UNIT REQUIRES AN AIRFLOW FOR THE INTERNAL COOLING FANS.
It is important that the position of the ADTS 505 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 altitude sensors (Figures 2-2 and 2-3). The Reference section contains details of altitude correction.
WARNING: OBSERVE THE APPROPRIATE SAFETY INSTRUCTIONS AND TESTING PROCEDURES
DETAILED IN THE AIRCRAFT MAINTENANCE MANUALS AND COMPONENT MAINTENANCE MANUALS.
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Druck ADTS 505 User Manual 2 - 9
K0260 Issue No. 8
2
FIGURE 2-2 ADTS 505 ALTITUDE CORRECTION ON-AIRCRAFT
FIGURE 2-3 ALTITUDE CORRECTION OFF-AIRCRAFT
Page 28
2 - 10 Installation
K0260 Issue No. 8
Power supply
fuses
Power supply
switch
Hand terminal
connector (option)
Ps (static)
connector
Pt (pitot)
connector
Power supply
connector
G
()
stud
round
Earth
Key-pad
and display
Air
vent
Water
drain
DO
NOT
OBSTRUCT
THESE
VENTS
WAT
E
R
D
R
A
IN
T5.0A
250V
HBC
FIGURE 2-4 ADTS 505 GENERAL VIEW
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Druck ADTS 505 User Manual 3 - 1
K0260 Issue No. 8
3
3OPERATION
3.1 Preparation
WARNING:
OBSERVE SAFETY PRECAUTIONS STATED IN LOCAL ORDERS AND THE AIRCRAFT OR EQUIPMENT SERVICING PROCEDURES.
Make sure the electrical and pneumatic connectors, electrical cables and pipes and positioning of
the ADTS 505 comply with the instructions and requirements in Section 2 Installation.
Carry out the following before use:
If necessary, carry out the maintenance task detailed in Section 4.
Make sure the air data test system power supply switch on the front panel is set to
OFF. Connect the air data test system to the electrical supply, make sure the supply includes a connection to a protective earth.
Inspect the pneumatic hoses for damage, ingress of dirt and moisture. Make sure the
aircraft adaptors are serviceable and the pipe connections are air-tight.
Note: Do not connect the air data test system to a contaminated aircraft system. Inspect the static
vents and pitot probes for dirt and debris before connecting. If necessary, check the pitot-static system water drain traps.
Connect, to the air data test system, the hoses necessary for the test procedures to be carried out:
STATIC output (Ps), PITOT output (Pt). Temporarily seal the free ends of the hoses.
Note: When connected, take care not to kink or stand on the hoses.
Before use, the ADTS 505 should be tested, for first time users see section 3.4, for users requiring
more operating detail see section 3.5.
This section contains a quick reference chart detailing all the functions of the key-pad. Further
quick reference charts, at the end of this section, detail the set-up menu.
Review and become familiar with the whole procedure before starting the test process on an
aircraft or component.
Page 30
3 - 2 Operation
K0260 Issue No. 8
3.2 Display Functions and Units of Measure
When operating in either pressure measuring or pressure controlling modes, the ADTS 505 can display the following information:
Aeronautical Functions
Display Abbreviation Displayed Units
(if applicable)
Altitude ALT ft, m Calibrated Airspeed CAS kts, km/h, mph Mach MACH ­Rate of Climb ROC ft/min, m/min, m/s, hm/min Rate of Airspeed Rt CAS kts/min, km/h/min, mph/min
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] /min Rate of Pt Rt Pt [P] /min Rate of Qc Rt Qc [P] /min Rate of EPR Rt EPR EPR/min
Where [P] is the currently selected pressure units from the following list:
mbar, inHg, mmHg, inH2O (4°C), inH2O (20°C), inH2O (60°F), psi, hPa, kPa.
Operating Range and Performance
The ADTS 505 is supplied with a full-scale range of 650 knots for measurement and control of the pitot pressure channel. The unit can measure altitude up to 105,000 ft; altitude control depends on the performance of the pump, the integral pump is capable of achieving -2000 to 60,000 ft. Refer to section 6 for more details of performance and specification.
Sets of factory-defined limits known as ARINC565, Standard, Military, Max and EPR can be selected through the SETUP menu (see Reference section 6). Operators may also define up to five sets of additional limits for different aircraft types. When configuring the display to aeronautical or pressure units operators should be aware that when units of pressure are selected, wider full-scale pressure limits will be enabled for some parameters.
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Druck ADTS 505 User Manual 3 - 3
K0260 Issue No. 8
3
3.3 Quick Reference
Key/selection Function and comments
FIGURE 3-1 KEY-PAD AND DISPLAY
KEY-PAD FUNCTION
the display shows the main pressure display (Leak Measure or Control mode) with normal operation key functions.
F1-F6
Function keys for menus
ALT/Ps
Altitude (Aeronautical units) or Ps (pressure units)
SPEED Qc
Airspeed (Aeronautical units) or Qc (pressure units)
EPR
Engine Pressure Ratio (pressure units only)
ROC/RATE Ps
Rate of Climb (Aeronautical units) or Rate of Ps (pressure units)
LEAK MEASURE/CONTROL
Switches between measure mode (for leak testing) and control mode
RATE
Rate of change of Pitot or Mach parameter, press parameter then RATE (read only)
GROUND
Controls Ps to atmospheric pressure and Qc to zero both at current rates of change
SETUP
Changes functions, limits and units, if [save/lock] pressed changes are permanent
HELP
Press HELP for further information on current selection/display
0-9
Number entry
-/000
Minus sign for first number entry 000 (thousand) if not first number of entry
CLEAR/QUIT
Clear number entry - quit from menu, HELP screen or clear warning message
ENTER
Complete number entry
DELETE
Removes the last number or character entered
CLEAR/QUIT + DELETE =
ABORT, all operations stop, the ADTS 505 restarts from a normal power-up sequence, including safe equalising of pressures between the test set and the connected system
100 / 120 / 230V ~ 50 / 60Hz 200VA
115V ~ 400Hz 200VA
T5.0A 250V
HBC
Page 32
3 - 4 Operation
K0260 Issue No. 8
3.4 First Time Operators
The following sequences of operation should be used by first time operators and by operators that
use the equipment occasionally. For regular users, familiar with the equipment, go to section 3.5. Set the power supply switch to ON and the power-on routine starts.
(1) The display first shows:
(2) After approximately five seconds the display shows
the start of the power-on sequence, the system carries out a self test. If the test finds a fault, the display shows an error message, refer to Section 5, Fault Finding and Testing.
(3) The display messages show a sequence of
pneumatic and internal system checks:
(4) After a successful self-test sequence the system changes to measure mode. The display changes
to the Leak Measure mode display showing the parameters selected in set-up.
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
SYSTEM STARTING
PLEASE WAIT
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
ADTS 505
Software Version1.06
LAST CALIBRATED[DD/MM/YYYY]
THERMAL TESTPLEASE WAIT
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version1.06
LAST CALIBRATED[DD/MM/YYYY]
CHECKING FOR VACUUMLEAKS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version1.06
LAST CALIBRATED[DD/MM/YYYY]
CHECKING FOR PRESSURE LEAKS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version1.06
LAST CALIBRATED[DD/MM/YYYY]
PRESSURIZING PUMPS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
FINDING VALVEBIAS 1 OF 4...
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
GROUND SENSORS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
OPEN VALVES
ADTS 505
Page 33
Druck ADTS 505 User Manual 3 - 5
K0260 Issue No. 8
3
(5) The system is now ready for use.
NOTES
1 The ADTS 505 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.
2 The display at power-up will be [QUAD] format (see above) unless changed in SETUP and [Save
Settings] selected.
(6) The connection of an optional hand terminal (option A or B) causes the front panel display to show
one of two messages:
or
To change between these two displays, see SETUP and [Display], [Hand Term], [Monitor] or [Message]. See paragraphs 3.4.1 and 3.9.
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
REMOTE
HAND
TERMINAL
OPERATING
Page 34
3 - 6 Operation
K0260 Issue No. 8
3.4.1 Operating Modes
The air data test system can now be set for a variety of functions and modes. In the following, examples of measure mode, control mode, leak measure mode and go-to-ground show the key presses and selections required for each mode.
Measure Mode
The system automatically enters measure mode after a successful self-test. To c hange the di splay press:
To store display for the next power-up press:
To return to measure mode press:
To set the display to show [Monitor] or [Message] press F6. This switches between the two settings and operates only when the hand terminal is connected.
Page 35
Druck ADTS 505 User Manual 3 - 7
K0260 Issue No. 8
3
Checking the Limits
Before use on aircraft systems or components check that the limits are within the values stated in the appropriate maintenance manual. There are sets of factory-defined limits:
Civil, Standard, Max or EPR (refer to Section 1 for details) At each power-up sequence the default set of limits "CIVIL" become active. The "CIVIL" limit set contains the lowest ranges and values. To see the name of the set of limits in use, press SETUP the display shows the [name] in the F3 limits field. To see the value of limits in use proceed as follows:
The current selected limits can be viewed by pressing F3. To select and use one of the factory­defined limit sets or define one of five sets of user-defined limits, see 3.5.6. The selected set of limits remain active until the selection of another set of limits or until power supply switch-off.
Limits
t
s
View Details
Select Limits
Enter PIN
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
USER 1 USER 2 USER 3 USER 4 USER 5
MAX
STANDARD
CIVIL
Active Limit Set: CIVIL
Available Preset Limits
Available User Limits
t
s
Select Limit
Limits
Save Settings
Modify Details
Modify Name
User
Supervisor
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Min ALT -1000 ft
Min CAS
Max Mach 1.0 Mach Max ROC 6,000 ft/min
Max ALT 50,000 ft
0.0 knots
Max CAS 450 knots
Alt Cor. 0 ft ARINC Limits OFF
Page #1
Details
Next Page
Next Page
User
Supervisor
t
s
Details
Modify Units
Detail
more (2 of 2)
more (1 of 2)
m km/h m/min
ft kts ft/min
mbar mbar/min
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Rt
Min Ps 115.97 mbar Max Ps 1050.41 mbar Min Qc 0.0 mbar Max Qc 368.01 mbar
Ps 100.00 mbar/min
Rt Qc 100.0 mbar/min
Page #2
Details
Next Page
User
Page 36
3 - 8 Operation
K0260 Issue No. 8
Control Mode
When the system is in measure mode, to enter control mode press:
The display changes to:
Note: The number of parameters displayed depends on the settings made in set-up, see previous page.
New set-point
To change the Aim value, press the required parameter key and, using the numeric keys, set the new Aim value. If necessary, use DELETE to remove the last digit set in the Aim value display field.
The display shows each numeric key press, a beep sounds with each key press. When the display shows the new Aim value press ENTER.
The display shows the parameter changing as the system controls to the set-point, at the set rate of change.
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Druck ADTS 505 User Manual 3 - 9
K0260 Issue No. 8
3
Go to GROUND
When the system is in control mode press:
Note: Go to ground does not operate in measure mode.
The ALT Aim value immediately changes to the current ground pressure (local airfield altitude) and the system safely controls to the GROUND value stored from power-up. The CAS Aim value immediately changes to zero and the system safely controls to zero:
The altitude and airspeed decreases at the rate set in ROC and RtCAS. When the altitude and airspeed are at ground and zero the display changes to:
At ground and zero the display shows safe at ground for 5 seconds then the ADTS 505 system closes the output valves to isolate the aircraft system and goes into a system datum check routine (includes operation of the pump and control valves) go to 3.7.8 for more details.
After completion of the system datum check routine the display shows safe at ground and the message "Press Clear/ Quit to continue". It is now safe to continue testing or to switch off and disconnect the aircraft system.
When familiar with these procedures go to 3.5.4 to leak test the ADTS 505.
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE CONTROL
HELP SETUP
SAFE
AT
GROUND
Page 38
3 - 10 Operation
K0260 Issue No. 8
3.5 Operation and Example Procedures
3.5.1 Operating Procedures
The procedures show the steps required to mak e sure th e ADTS 505 is serviceable and the settings
required to test an aircraft system or component. For further information refer to the Section 6 ­Reference and Specification. In the following:
All key presses are highlighted in bold and shown as identified on the front panel.
Key presses inside brackets e.g., [MORE], are soft key presses (i.e., function key selections {F1 to F6}
indicated on the screen).
Help System
The help information includes further details of the function and details associated functions, also
see Section 6 - Reference and Specification.
3.5.2 Power-up
Set the front panel power switch to ON and check the power indicator lights.
The display shows the following sequence:
a. ADTS 505 power-up screen with the software version and the last calibration date. b. Sequence of system and pneumatic tests:
i. Thermal test. ii. Testing for vacuum leaks. iii. Testing for pressure leaks. iv. Pressurizing pumps. v. Finding valve bias. vi. Measuring ground pressure. vii. Equalising system pressures.
c. Display shows Leak Measure mode and the number of parameters last selected in
display set-up.
Make sure that the ADTS 505 performs a self-test with no errors reported refer to Testing and Fault
finding Section 5, for details of errors.
The ADTS 505 always powers up in Leak Measure mode with the pressure controllers off. When
changing to Control Mode the pump unit must be producing the correct pressure and vacuum.
The ADTS 505 system is now ready for use. After approximately 15 minutes, the system may be
used with full specification accuracy and stability.
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Druck ADTS 505 User Manual 3 - 11
K0260 Issue No. 8
3
3.5.3 Control or Measure Parameter
To change the displayed Measure parameters:
Press SETUP [Displays], [Single, Dual, Quad], press CLEAR/QUIT repeatedly until the display goes to Leak Measure Mode.
Measure parameters:
Press the parameter key
e.g., press SPEED/Qc to display airspeed.
To change the displayed rate parameter:
Press the associated parameter key followed by the rate key.
e.g., display airspeed rate, press SPEED/Qc then RATE.
ROC/RATE Ps may be directly pressed without first pressing ALT/Ps.
In Leak Measure mode, pressing the parameter and rate keys changes the order that the display
shows the parameters.
Control Aim
A new control aim can be entered using the numeric keys. Each digit is displayed as it is pressed.
The existing aim is replaced when the first digit of the new aim is pressed. If an error is made during the entry of data, press CLEAR/QUIT to restore the original aim.
Press ENTER to action the new aim.
Note 1:The -/000 key can be used as a quick way of entering thousands. If this key is pressed first (i.e.
before a number is entered) the value becomes negative, press again the value becomes positive.
Note 2:The ADTS 505 must be in control mode to enter a new aim (current aim displayed). If the aim
field shows "Leak Measure" press LEAK MEASURE/CONTROL to enter control mode.
3.5.4 Leak Testing the ADTS 505
It is important to check that the ADTS 505 and the connecting hoses do not leak. Before use, a leak
check should be carried out as follows:
Connect the Pitot and static hoses (to front panel of ADTS 505). Temporarily seal the free ends of
the hoses.
Set the display to quad, see 3.4.1. Set the units to feet and knots, see 3.5.5.
Page 40
3 - 12 Operation
K0260 Issue No. 8
Press LEAK MEASURE/CONTROL to select Control mode.
Using the set-up menu, choose the limits set for the aircraft or UUT, see 3.5.6.
Press CLEAR/QUIT repeatedly until the display shows control mode.
Set ROC/RtPs to 5000ft/min, enter an altitude aim of 1000 ft and an airspeed of 200 knots.
Wait until the system achieves the aim values and press LEAK MEASURE/CONTROL to
change to Leak Measure mode.
Leak Measurement
Note: Compressing a gas generates heat. Gas heated or cooled in an enclosed volume causes a
pressure change. It is important, especially for leak testing, to allow enough time for the heated gas to cool and the pressure to stabilize.
In Leak Measure mode, select from the main menu [Rate Timer], and enter a wait time in minutes
and seconds F3 - [Set Wait] 00m.30Secs. Enter a leak measure time in minutes and seconds F4 ­[Set Time] 00m.30Secs. If necessary, press F5 to save these times for future use.
Select [Start Timer] F1, as the rate timer starts, the display shows the count down (in seconds) of
the wait time and then the count down of the timing. The status message at the bottom of the screen changes in this order LEAK MODE: WAIT: TIMING: RATES AVAILABLE: Wait until rate timer has completed, the rate parameters on the display changes from "Leak Measure" to "Timed Leak Measure" and shows the results in units/min.
Check ROC is less than ±25 ft/min and Rt CAS is less than ±0.25 kt/min.
Press CLEAR/QUIT to return to the main menu.
Press LEAK MEASURE/CONTROL to return to Control mode.
Press GROUND, to go to atmospheric pressure.
Wait until the display shows safe at ground (atmospheric pressure).
After a successful leak test, the ADTS 505 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 505 is now ready to be connected to an aircraft system or unit under test.
After another unsuccessful leak test, disconnect both hoses, check the condition of the o-rings on
the Ps and Pt connectors as detailed in the maintenance section and firmly replace the blanking caps. Press CLEAR/QUIT and repeat the leak test procedure.
After a successful leak test without hoses connected, replace or repair the faulty hose(s) and test
again. If the ADTS 505 fails the leak test without hoses connected, switch off and return the unit to the repair depot.
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3.5.5 Changing the Units of Measurement
The units of measurement can be changed
to units of pressure measurement or aeronautical units.
To change the units:
Select, from the main menu, [Units].
Select from the Units Menu:
Select [Save Settings] to store as the
units used at the next power up.
Press CLEAR/QUIT to return to the
main pressure display.
In set-up, more units of pressure
measurement can be selected for each parameter.
3.5.6 Setting Limits
All data entered is checked against minimum and maximum values set for the particular limit set
in use. If these limits are exceeded, the display shows a warning message "Changed aim to current limit". Press CLEAR/QUIT the system automatically modifies the aim values so that the limits are not exceeded. All limits of associated parameters are checked, if these limits are exceeded the display shows the warning message and the parameter modified. Similarly, if an ARINC 565 limit is exceeded when entering a value and, ARINC limits are enabled, the display shows a warning message. Refer to Section 6 for details of the factory-defined operating envelope ARINC565.
In the SETUP function, previously stored sets of limits can be selected for use. Each set of limits is
stored under name or number up to a maximum of 10 characters. To enable other sets of limits or enter additional sets of limits requires the supervisor PIN.
F1
F2
F3
F4
F5
F6
F2
Units
Main Menu
ft kts ft/min m km/h m/min
mbar mbar
/min
Save Settings
Units
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3 - 14 Operation
K0260 Issue No. 8
To select a limit set (User)
Press SETUP, the display shows Setup, [Limits]
[xxxxxx], where xxxxxx is the current name of the selected limit set. Select [Limits] [xxxx] F3.
The display highlights the current set of limits
in use by the name in the list. The current limit values can be inspected by pressing [View Details] F4. The display shows the current limit values and divides these values into aeronautical (Page #1) and pressure (Page #2).
The ARINC 565 limit can be selected ON or
OFF in a set of user defined limits, When selected, the values entered and/or achieved in control mode are checked within the operating envelope of the ARINC 565 limits, see section 6.
To select another set of limits from the list
press [Select Limits], F5. Use [ ] or [ ] to move through the list.
To edit a limit set (Supervisor)
To edit or make a new set of limits press [Enter
PIN], F3 and enter the PIN. Use [ ] or [ ] to move through the list. Each set of limits is identified by it's name. New sets of limits can be created and existing sets of limits can be renamed or values changed. Refer to section 6 for more details. The user-named sets, can be edited by pressing [Select Limit [xxxxxx], then Modify Details or Modify Name.
Select [Save Settings] to store the new details
or name to be used on the next power-up of the system.
Notes:
1 For temporary changes press QUIT/CLEAR
in place of [Save Settings].
2 The factory-defined limit sets, “STANDARD“,
"MAX" and "CIVIL" cannot
be changed.
Limits
t
s
View Details
Select Limits
Enter PIN
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
USER 1 USER 2 USER 3 USER 4 USER 5
MAX
STANDARD
CIVIL
Active Limit Set: CIVIL
Available Preset Limits
Available User Limits
t
s
Select Limit
Limits
Save Settings
Modify Details
Modify Name
User
Supervisor
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Min ALT -1000 ft
Min CAS
Max Mach 1.0 Mach Max ROC 6,000 ft/min
Max ALT 50,000 ft
0.0 knots
Max CAS 450 knots
Alt Cor. 0 ft ARINC Limits OFF
Page #1
Details
Next Page
Next Page
User
Supervisor
t
s
Details
Modify Units
more (1 of 2)
ft kts ft/min
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Rt
Min Ps 0.0 mbar Max Ps 1050.406 mbar Min Qc 0.0 mbar Max Qc 368.01 mbar
Ps 105.00 mbar/min
Rt Qc 90.0 mbar/min
Page #2
Details
Next Page
Limits
more (1 of 2)
mkm/h m/min
mbar mbar/min
User
Supervisor
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3
3.6 Tests Before Use
Note: It is recommended that the following test is carried out, before use, at least once per day.
1. Switch the unit ON. After the power-up routine, fit the blanking caps to the outlet ports.
2. Carry out the standard serviceability test in section 5.
Note: It is recommended that, for protection, the blanking caps remain fitted to the outlet ports
until required for connection to the Pitot-Static systems.
3.6.1 Aircraft System Protection
The ADTS 505 protects the aircraft system against user error and leaks in the aircraft system. The
system protection operates:
Limit checking of all aim values entered.
Automatically regains control if the leak rate is greater than the parameter rate (RtPt, ROC) during leak testing.
The pressure controllers within the ADTS 505 have the ability to feed a leak within an aircraft system.
When first testing an aircraft system, carry out a leak test in accordance with the aircraft maintenance manuals.
If, during a leak test, a leak in the system produces a rate of climb greater than ±3000 ft/min or a
rate of change of airspeed greater than ±300 knots/min, then the pressure controllers automatically regain control to minimise damage to the aircraft system. This AUTO LEAK RECOVERY facility can be disabled.
3.7 Testing Aircraft Systems or UUT
WARNING:
OBSERVE THE APPROPRIATE SAFETY INSTRUCTIONS AND PROCEDURES DETAILED IN THE AIRCRAFT MAINTENANCE MANUALS OR COMPONENT MAINTENANCE MANUALS.
Connect the hoses and appropriate adaptors to the aircraft system or UUT.
To make sure that the connections to the aircraft system or UUT are not leaking carry out a leak
test detailed in the appropriate aircraft or component manual.
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K0260 Issue No. 8
3.7.1 Testing the Aircraft Static System
CAUTIONS:
1O
BSERVE ALL SAFETY PRECAUTIONS DETAILED IN THE AIRCRAFT MAINTENANCE MANUAL.
2W
HEN USING PS (STATIC ONLY), MAKE SURE THAT THE DIFFERENTIAL PRESSURE (QC) STAYS WITHIN
THE LIMITS OF THE ASI.
1. Remove the static blanking cap and switch ON.
2. Connect the ADTS 505 to the Aircraft Static System.
Note: If the static system under test contains an ASI, applying static (vacuum) to this instrument
generates a Q
C
differential pressure.
3. Press ALT/Ps and make sure the display shows ALT Leak Measure.
Note: To monitor the rate of change press ROC/RATE Ps after pressing ALT/Ps. The control rate of
change for altitude can be changed within the selected limits.
4. If necessary, select [Units] in the Main Menu, press F1 [ft, kts, ft/min]. Press CLEAR/QUIT to go back to the Main Menu.
5. If necessary change the limits in the Main Menu, press F6 [More], F1 [Limits]. After setting the limits, press repeatedly CLEAR/QUIT to go back to the Main Menu.
6. Press LEAK MEASURE/CONTROL to select control mode and, using the numeric keys, set the control aim. Press ENTER, the altitude changes to the control aim the rate of change slows as it gets near the control aim and does not "overshoot" the aim value.
7. Enter another aim or use the nudge facility to change the aim value. At the end of testing, press GROUND to return to atmospheric pressure.
8. On completion of testing, select GROUND and wait for the `Safe at Ground' message to be displayed, see 3.7.8., refit the static blanking cap.
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3.7.2 Testing the Aircraft Pitot System
CAUTIONS:
1O
BSERVE ALL SAFETY PRECAUTIONS DETAILED IN THE AIRCRAFT MAINTENANCE MANUAL.
2W
HEN USING PT (PITOT ONLY), MAKE SURE THAT THE DIFFERENTIAL PRESSURE (QC) STAYS WITHIN THE
LIMITS OF THE ASI.
1. Remove the Pitot and static blanking caps and switch ON.
2. Connect the ADTS 505 to the Aircraft Pitot System.
3. Press SPEED/Qc and make sure the display shows Qc Leak Measure.
Note: To monitor the rate of change press RATE after pressing SPEED/Qc. The control rate of change
for airspeed is fixed at 300 kts/min.
4. If necessary, select Units in the Main Menu, press F1 [ft, kts, ft/min]. Press CLEAR/QUIT to go back to the Main Menu.
5. If necessary change the limits in the Main Menu, press F6 [More], F1 [Limits]. After setting the limits, press repeatedly CLEAR/QUIT to go back to the Main Menu.
6. Press LEAK MEASURE/CONTROL to select control mode and, using the numeric keys, set the control aim. Press ENTER, the airspeed changes to the control aim the rate of change slows as it gets near the control aim and does not "overshoot" the aim value.
7. Enter another aim or use the nudge facility to change the aim value. At the end of testing, press GROUND to return to zero pressure.
8. On completion of testing, select GROUND and wait for the `Safe at Ground' message to be displayed, see 3.7.8., refit the pitot and static blanking caps.
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K0260 Issue No. 8
3.7.3 Combined Testing of the Aircraft Pitot and Static Systems
CAUTION:
O
BSERVE ALL SAFETY PRECAUTIONS DETAILED IN THE AIRCRAFT MAINTENANCE MANUAL.
It is possible to combine the tests detailed in paragraphs 3.7.1 and 3.7.2. Any combination of altitude and airspeed can be established within the programmed set limits.
1. Remove the pitot and static blanking caps and switch ON.
2. Connect the ADTS 505 to the Aircraft Pitot and Static Systems.
3. The most convenient way of observing speed and altitude is to change the display to Dual, showing both parameters. To observe rates of speed and altitude change the display to Quad and then, in turn press ALT/Ps, ROC/RATE Ps, SPEED/Qc and Rate; this will display the parameters in the most appropriate order.
4. If necessary, select [Units] in the Main Menu, press F1 [ft, kts, ft/min]. Press CLEAR/QUIT to go back to the Main Menu.
5. If necessary change the limits press SETUP, select F3 [Limits]. After setting the limits, press repeatedly CLEAR/QUIT to go back to the Main Menu.
Note: The control rate of change for altitude can be changed within the selected limits.
6. Press LEAK MEASURE/CONTROL and set the ALT Aim to the required pressure and then the SPEED/ Qc CAS Aim to the required pressure.
7. Observe the display parameters changing as the ADTS 505 controls to the required altitude and airspeed.
8. On completion of testing, select GROUND and wait for the `Safe at Ground' message to be displayed, see 3.7.8., refit the pitot and static blanking caps.
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3.7.4 Mach Test and Constant Mach
Example
To go to 0.45 Mach, proceed as follows:
Press LEAK MEASURE/CONTROL to enter Control Mode.
Press SPEED/Qc then RATE to display rate of change of airspeed.
The preset rate of speed is 300 kts/min.
Press MACH/Pt.
Enter an aim of 0.45.
Wait for the Mach aim to be achieved.
The system keeps the Mach aim constant by controlling/changing Pt (pitot) leaving Ps
(static) at a constant value.
On completion of testing, select GROUND and wait for the `Safe at Ground' message to be displayed,
see 3.7.8., refit the pitot and static blanking caps.
Notes
1 If the altitude Ps (static) changes, the system automatically adjusts Pt (pitot) to keep the Mach
value constant.
2 Use the nudge facility for small changes to the Mach aim value.
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K0260 Issue No. 8
3.7.5 Leak Testing
General
Apply pressure to the system under test as detailed in Testing the Aircraft Static or Pitot system. Before starting the leak test, check that the ADTS 505 is operating within range of the set limits.
Example
To leak test a pitot system to 300 knots at a maximum rate of 300 knots/min and a static system to 30,000 ft at a maximum rate 5,000 ft/min. Tests with a wait time of 5 minutes and test time of 1 minute. Maximum pitot system leak rate allowed 5 kts/min or less. Maximum static system leak rate 200 ft/min or less.
Procedure
1. Select F2 [Units], from the Main Menu, select F1 [ft, kts, kts/min]. Press CLEAR/QUIT to return to the main menu.
2. Press SETUP, select F1 [Display], press F3 [Quad] and then press ALT/Ps, ROC/RATE Ps, SPEED/Qc and RATE so that the display shows these parameters in the most appropriate order.
3. Press F3, [Rate Timer], then F3 [Set Wait 5.00], press ENTER and F4 [Set Time 1.00], press ENTER. Press F6 to return to the Main menu.
4. Press the LEAK MEASURE/CONTROL to enter control mode. Press ROC/RATE Ps and set an Aim of 5000 ft/min. Press ALT/Ps and set an Aim value of 30,000 ft and press ENTER. The system starts to control to the new set-point.
5. Press the LEAK MEASURE/CONTROL to enter measure mode. Press F1 [Rate Timer] and press F1 [Start Timing].
6. At the end of the timing check the rate of change (leak rate) this should be within the required limits stated in the Aircraft Maintenance Manual; in this example 200 ft/min or less.
7. Press the LEAK MEASURE/CONTROL to enter control mode. The preset rate of speed is set at 300 knots/min. Press SPEED/Qc and set an Aim of 300 knots. The system starts to control to the new set-point.
8. Press the LEAK MEASURE/CONTROL to enter measure mode. Press F1 [Rate Timer] and press F1 [Start Timing].
9. At the end of the timing check the rate of change (leak rate) this should be within the required limits stated in the Aircraft Maintenance Manual; in this example 5 kts/min or less.
Note: If further testing is required, apply another pressure to the system under test and repeat the
steps above.
On completion of testing, press the LEAK MEASURE/CONTROL to enter control mode, select
GROUND and wait for the `Safe at Ground' message to be displayed, see 3.7.8., refit the pitot and
static blanking caps.
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3.7.6 Airspeed Switch Test
The following example shows how an airspeed switch can be functionally checked.
Note: For low airspeed switches (i.e. 130 knots) Pitot only could be used, 3.7.2.
Press LEAK MEASURE/CONTROL to enter control mode. Press SPEED/Qc.
Enter an Aim value below the operating limits of the switch (i.e., airspeed switch operating at 130
knots ±2 knots set 127 knots).
If necessary, press RATE and enter a change of airspeed low enough to observe switch operation.
Press ENTER and observe the airspeed changing.
Using the NUDGE facility, to step-increase, at a fixed increment (0.2 knots), 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.
On completion of testing, select GROUND and wait for the `Safe at Ground' message to be displayed,
see 3.7.8., refit the pitot and static blanking caps.
This procedure can be repeated.
The above method can be used for the other parameters:
Examples:
Altitude switch - low altitude warning
- landing gear configuration warning
-height lock
Mach switch - Speed brake scheduling
- Mach cruise lock
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K0260 Issue No. 8
3.7.7 Engine Pressure Ratio
The ADTS 505 may be used to check EPR sensors and indicators. Use Ps (static) for INLET pressure
and Pt (Pitot) for OUTLET pressure.
To carry out an EPR check, the display must be showing units of pressure measurement e.g., mbar,
inHg, psi.
Note: Altitude correction applies to EPR values make sure this correction does not adversely affect
accuracy. The difference in height between the ADTS 505 and the EPR sensor may be different to the altitude correction previously set for the aircraft instruments.
To change units:
Press F2 [Units].
Select required pressure units, the pressure units are selected in set-up.
Use CLEAR/QUIT to return to pressure display.
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 go to control.
Press [Rate Inlet], F2 and set 200mbar/min.
Press [Rate EPR], F4 and set 0.8 EPR/min.
Press [Inlet], F1 set an aim value of 500 mbar (15 inHg).
Select [EPR] F3, set an aim value of 1.8.
Wait for the controller to achieve the EPR aim value. Press [Outlet], F5 to confirm 900
mbar.
Note: EPR testing can also be performed by specifying the actual INLET and OUTLET values. In the
above example, with inlet at 500 mbar, a ratio of 1.8, the outlet value should be 500 mbar x 1.8 = 900 mbar (Pt) [15 inHg x 1.8 = 27 inHg (Pt)].
Some EPR procedures (earlier ECU) may require measurement in aeronautical units:
Set to aeronautical units, press LEAK MEASURE/CONTROL and set the inlet pressure
(ALT control aim) to the required value.
Change units to pressure, press EPR, set the required ratio.
Allow the system to achieve the control aim. Exit EPR and return to leak measure
mode. Change units to aeronautical and record the resulting value in knots.
On completion of EPR testing, select GROUND and wait for the `Safe at Ground' message to be
displayed, see 3.7.8., refit the pitot and static blanking caps.
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3.7.8 Go To Ground
On completion of testing and, before disconnecting from the aircraft system or UUT, the pressures
in the system must be taken to the local atmospheric pressure (ground) with zero airspeed.
If the display shows "Leak Measure", press LEAK MEASURE/CONTROL.
Press GROUND, (go to ground).
The pressure in the system changes towards ground. The ground pressure replaces the
static or altitude aim value; zero replaces the airspeed aim.
Note: If required, new rates of change can be entered while going to ground.
Wait for the display to show zero airspeed and atmospheric pressure.
The display changes to "safe at ground" for 5 seconds then to "aircraft safe at ground"
with the message "confirming system settings .....".
Note: During this operation:
keep the power supply connected and switched on.
the system disables the key-pad.
it is safe to disconnect the pipes from the aircraft system or UUT.
After completing this operation the display changes back to "safe at ground" with the
message "Press Clear/Quit to continue".
It is now safe to continue testing or to switch off and disconnect the aircraft system or
UUT.
Note: If the ADTS 505 stays in the "safe at ground" for 30 minutes the
"confirming system settings ....." operation will be repeated. The
operation automatically re-checks the ADTS controller settings, the pumps start and the display shows:
No pressure is applied to the output ports during this operation.
Shut-down
When the airspeed is zero and the Ps channel pressure is close to ground, the
atmospheric pressure is re-measured to update the recorded ground pressure (QFE).
Press QUIT/CLEAR to continue with normal operation; the ground and zero valves
automatically close.
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE CONTROL
HELP SETUP
AIRCRAFT
SAFE AT
GROUND
confirming system settings 1 of 4....
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3.8 Manual Venting of the Aircraft Pitot and Static Systems
This procedure should be carried out when the power supply has failed and the ADTS 505 has
failed-safe with pressures remaining in the aircraft system. The aircraft system pressures must be slowly changed to atmospheric pressure in the following way:
CAUTION:
1THE AIRCRAFT INSTRUMENTS MUST BE MONITORED THROUGHOUT MANUAL VENTING. DO NOT EXCEED THE
MAXIMUM RATES OF CHANGE OF PRESSURES FOR THE INSTRUMENTS IN THE AIRCRAFT SYSTEM. REFER TO THE AIRCRAFT MAINTENANCE MANUAL.
2
F
OLLOW THIS PROCEDURE; DO NOT PRODUCE A NEGATIVE AIRSPEED THIS WILL DAMAGE AIRCRAFT INSTRUMENTS
.
i. Using a screwdriver, carefully open the Qc manual vent and allow the pressure in the pitot
(Pt) and static (Ps) systems to equalise (shown on the aircraft ASI). Fully open the Qc valve. ii. Using a screwdriver, carefully open the Ps manual vent do not exceed a rate of 3000 ft/min. iii. When the indicated pressures, shown on the aircraft instruments, reaches atmospheric
pressure close both vents.
3.9 ADTS 505 Options
Hand Terminal Option A
The hand terminal provides the same selections and displays as the front panel display. When
connected the system auto-detects the hand terminal and disables the front panel key-pad.
The front panel display shows "Remote Hand Terminal Operating" (message/monitor) or the current
values and modes of the hand terminal (monitor). The display menu in set-up provides the selection between message and monitor.
Advanced Hand Terminal Option B
CAUTION:
O
NLY USE THIS ADVANCED HAND TERMINAL WITH ADTS 505 UNITS AT MODIFICATION STATE 3,
DAMAGE WILL OCCUR TO ADTS 505 UNITS AT EARLIER MODIFICATION STATES.
During the early power-up, self-test period, the instrument display screen shows:
”Software Version 1.07+”
This text is located just above the last calibration date entry.
The advanced hand terminal provides a Windows®-based, touch-sensitive colour screen to up-
load and down-load user-defined test programs. When connected, the system auto-detects the advanced hand terminal and disables the front panel key-pad. The front panel display shows "Remote Hand Terminal Operating" (message/monitor) or the current values and modes of the advanced hand terminal (monitor). At power-up, the display shows the main operation menu with selections for system set-up, test sequence files and manual control. See 6.4 for the details and procedures for the advanced hand terminal.
If the ADTS 505 unit is not at the correct modification state, contact the local GE Sensing sales team
to arrange for a free upgrade of your unit.
www.ge-mcs.com
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3
3.10 Set-up Reference
The following charts provide a user reference for the set-up functions of the ADTS 505.
CAS/Qc F1 kts F2 km/h F3 mph F4 mbar F5 “Hg F6 more (1 of 3)
CAS/Qc F1 kPa F2 hPa F3 F4 F5 F6 more (3 of 3)
F1 Display
F2 Units
F1 ft F2 m F3 mbar F4 “Hg F5 psi F6 more (1 of 3)
Alt/Ps
F1 hPa F2 F3 F4 F5 F6 more (3 of 3)
Alt/Ps
F1 ft F2 “H O°C F3 “H O°C F4 “H O°F F5 kPa F6 more (2 of 3)
Alt/Ps
24
220
260
Mach F1 “H O°C F2 “H O°C F3 “H O°F F4 kPa F5 hPa F6 more (2 of 2)
/Pt
24
220
260
F1 psi F2 mmHg F3 “H O°C F4 “H O°C F5 “H O°F F6 more (2 of 3)
CAS/Qc
24
220
260
ROC/Rt Ps F1 ft/min F2 m/min F3 m/s F4 hm/min F5 mbar/min F6 more (1 of 3)
ROC/Rt Ps F1 “Hg/min F2 psi/min F3 mmHg/min F4 /min
/min
F6 more (2 of 3)
“H O°C
F5 “H O°C
24
220
ROC/Rt Ps F1 /min F2 kPa/min F3 hPa/min F4 F5 F6 more (3 of 3)
“H O°F
260
Mach/Pt F1 Mach F2 mbar F3 “Hg F4 psi F5 mmHg F6 more (1 of 2)
Display F1 Single F2 Dual F3 Quad F4 Save Settings F5 F6 Handset
Setup Units F1 Alt/Ps
F2 ROC/RatePs
F3 CAS/Qc
Rt CAS/Qc
F4 Mach/Pt
Rate Pt
F5 F6 Save Settings
Continued …
to (1 of 3)
to (1 of 3)
to (1 of 3)
to (1 of 2)
[Message]
[Monitor]
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4
4 MAINTENANCE
4.1 Introduction
This section details the maintenance tasks to be carried out by the operator. The maintenance chart shows the maintenance tasks, the periodicity of each task and a code referenced to the task detailed in 4.3.
* Periodicity may change depending on usage and environment, refer to the Engineering Authority.
TABLE 4-1 MAINTENANCE CHART
Waste Electrical and Electronic Equipment directive 2002/96/EC
Do not dispose of this product as household waste. Use an approved organisation that collects and/or recycles waste electrical and electronic equipment. For more information, contact one of these:
our customer service department: Contact us at www.ge-mcs.com
your local government office.
Task Code Period
Inspect A Daily, before use.
Inspect B Weekly
Test C Before use.
Test D Daily, before use.
Calibrate E Every 12 months *
Replace F As detailed in fault finding or when detailed after inspection.
Clean G Weekly *
Service H
1,000 hours recorded by the unit's operational timer or the equipment running log.
Service J
3,000 hours recorded by the unit's operational timer or 1000 hours recorded by pump operational timer or the equipment running log.
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4 - 2 Maintenance
K0260 Issue No. 8
4.2 Materials and Tools
This section provides lists of the materials and tools required for the user to maintain the ADTS 505.
Note: Equivalent substitutes can be used.
T
ABLE 4-2 MATERIALS LIST
Note: Equivalent substitutes can be used.
T
ABLE 4-3 TOOL AND TEST EQUIPMENT REQUIREMENTS
Item
Number
Item Name, Description
1 Cloth, Cotton, Lint-free 2 Alcohol, Isopropyl (MIL-A-10428, Grade A) 3 Detergent, Mild, Liquid 4 Brush, Soft-bristle (MIL-B-43871)
Ref Code Nomenclature
Manufacturer’s
part number
1 Voltmeter, Digital GE DPI620 2 Insulation Tester, 250V Robin
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4.3 Maintenance Tasks
A Check that all the equipment is present; record any deficiencies. Visually inspect the external
of the ADTS 505, and its associated equipment, for obvious signs of damage, dirt, and the ingress of moisture. If necessary, use mild liquid detergent (item 3, Table 4-2) and a lint-free cloth (item 1, Table 4-2) to clean the external surfaces.
Inspect the pressure outlet ports for ingress of dirt and moisture, clean if necessary with a lint-free cloth.
B Visually inspect the pneumatic output connectors for damage. Inspect the small o-ring on
each pneumatic output connector for cuts and any signs of wear; replace as necessary. Visually inspect pneumatic hoses, electrical cables for cuts, splits and damage; replace as necessary.
C Before use, power-up the unit as detailed in Section 3. Check the date of the last calibration
and, if necessary, refer to task E. Record any error messages and refer to Section 5.
D Daily and before use, carry out the SST detailed in Section 5.
E Normal calibration period 12 months. When calibration is due, the unit should be withdrawn
from service and returned to depot 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 A and B.
G Depending on the level of use and the cleanliness of the operating environment, clean the
unit at regular intervals. Clean the front panel with a damp lint-free cloth (item 1, Table 4-2) and mild liquid detergent (item 3, Table 4-2). Remove any stubborn dirt using isopropyl alcohol (item 2, Table 4-2) and allow to dry. Clean all pneumatic connectors with a soft brush (item 4, Table 4-2). Remove any stubborn dirt using isopropyl alcohol (item 2, Table 4-2) and allow to dry.
H Withdraw the unit from service and return to the repair depot.
J Withdraw the unit from service and return to the repair depot.
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4 - 4 Maintenance
K0260 Issue No. 8
4.4 Routine Maintenance
WARNING: S
WITCH OFF AND DISCONNECT THE POWER SUPPLY BEFORE STARTING ANY MAINTENANCE TASK.
Carrying out the maintenance tasks detailed 4.3.
Servicing Procedures
The following procedures provide instructions to test and replace items for the operator. Return the unit to the repair 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 o-ring is tight in the groove and not damaged after fitting.
Note: Damage to this o-ring causes leaks.
Page 61
Druck ADTS 505 User Manual 4 - 5
K0260 Issue No. 8
4
Fuse Replacement (Fig 4-1)
Replace the fuse when detailed in Section 5, Testing and Fault Finding:
•Set the power switch to OFF.
Note: The power switch is not a power isolator as defined by EN61010.
Isolate the power supply to the instrument by disconnecting the power supply connector (1).
Unscrew and remove the fuse cap (2) and fuse cartridge (3) from the front panel and replace the fuse cartridge (3).
Note: Fit the correct type of fuse detailed in Section 2, Installation and on the front panel.
Refit the fuse cap (2) and fuse cartridge (3) to the front panel.
Reconnect power supply connector (1).
Switch on the power supply. The instrument should now be operational.
If a fuse blows immediately on switch-on, contact the manufacturer or Service Agent.
F
IGURE 4-1 FUSE REPLACEMENT
1
2
3
Page 62
4 - 6 Maintenance
K0260 Issue No. 8
Hand Terminal Cable Tests
Carry out the following check as detailed in Testing and Fault Finding, Section 5.
Measure continuity using the DVM (item 1, Table 4-3) set to an appropriate range.
Measure the continuity between corresponding pins at each end of each cable assembly. The measured resistance must not exceed 0.10 .
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 pins in turn.
Measure also the resistance between individual pairs of pins (i.e., 1-2, 1-3, 1-4, 1-5, 1-6, 2­3, 2-4, 2-5, 2-6, 3-4, 3-5, 3-6, 4-5, 4-6 and 5-6). In all cases the resistance must exceed 10 Mohms.
É
Page 63
Druck ADTS 505 User Manual 5 - 1
K0260 Issue No. 8
5
5 TESTING AND FAULT FINDING
5.1 Introduction
The ADTS 505 contains a built-in, self-test and diagnostic system. The system continuously
monitors the performance of the unit and at power-up carries out a self-test. Warning and error messages 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 data or values, pressing
CLEAR/QUIT clears the message and allows the correct entry to be made.
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5 - 2 Testing and Fault Finding
K0260 Issue No. 8
5.2 Standard Serviceability Test
The following procedure shows if the unit is serviceable and checks functions and facilities of
the ADTS 505. In this procedure:
All key presses are highlighted in BOLD and shown as identified on the front panel.
Key presses inside brackets e.g., [Units], are soft key presses (i.e., function key
selections {F1 to F6} indicated on the screen).
Procedure
Connection and power-on checks.
Connect power to the unit.
Make sure the blanking caps are fitted to the
Ps and Pt front panel outputs.
Set the power supply switch to ON.
Check power indicator is on.
Check the display shows the first power-up
message.
Check the display all the power-up messages.
The ADTS 505 displays any detected errors,
refer to fault finding.
Check that the display then changes to show
measured aeronautical or pressure values. This depends on the display set-up.
N
OTES
1 The displayed values change as atmospheric pressure changes at power-up.
2 The unit requires
15 minutes to warm-up to achieve full accuracy and stability.
ALTPsSPEEDQcMACH
Pt
ROC
RATE Ps
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
SYSTEM STARTING
PLEASE WAIT
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
ADTS 505
Software Version 1.06
LAST CALIBRATED[DD/MM/YYYY]
THERMAL TEST PLEASE WAIT
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version 1.06
LAST CALIBRATED[DD/MM/YYYY]
CHECKING FOR VACUUM LEAKS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version 1.06
LAST CALIBRATED[DD/MM/YYYY]
CHECKING FOR PRESSURE LEAKS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
Software Version 1.06
LAST CALIBRATED[DD/MM/YYYY]
PRESSURIZING PUMPS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
OPEN VALVES
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
GROUND SENSORS
ADTS 505
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK
MEASURE
CONTROL
HELP SETUP
KEEP SIDEAIR VENTS CLEAR
FINDINGVALVEBIAS1OF4...
ADTS 505
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K0260 Issue No. 8
5
Set the display to QUAD format (see 3.4.1 to change) and aeronautical units of ft, kts and
ft/min (see 3.5.5 to change).
Press ALT/Ps, ROC/RtPs, SPEED/Pt and RATE to display the required parameters.
Press LEAK MEASURE/CONTROL to go to control mode.
Set the ROC/RtPs to 5000 ft/min.
Enter an altitude aim of 500 ft and an airspeed aim of 400 knots.
Check that these aim values are achieved, the rate of change are within the selected
rates and that the achieved aim values are stable.
Completion Press GROUND, wait until the display shows `Safe at Ground'. On successful completion of
this test procedure, switch off and disconnect the power supply.
5.3 Fault Diagnosis
If a fault occurs, refer to the fault location chart, Figure 5-1 and Table 5-1 for possible fault
causes and recommended action.
If the display shows a warning or error message, refer to the section below.
If a pneumatic leak or controller is suspect refer to section 5.5.
5.4 Warnings and Self-Test Errors
At power-up, the ADTS 505 indicates if there is a fault by displaying an error code and
message.
See 5.6 for the tables listing the error codes, check that the error code is complete and listed
in the table before returning the unit to the repair depot.
During normal operation the display can show a warning message, see 5.6 for the tables
listing the warning messages, probable cause and recommended action.
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5 - 4 Testing and Fault Finding
K0260 Issue No. 8
FIGURE 5-1 FAULT FINDING CHART
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5
TABLE 5-1 FAULT FINDING
Fault Symptom Probable cause Action
F1
Power supply indicator does not light.
Faulty power supply outlet. Unserviceable power supply front panel fuse. Faulty power supply cable.
Internal power supply fault.
Check power supply. Check/replace fuse. Check/replace fuse. Replace cable and re-test.
Record fault and return ADTS 505 to depot for repair.
F2
Power supply indicator lights, no display.
Internal fault.
Record fault and return ADTS 505 to depot for repair.
F3 No self-test message. Internal fault.
Record fault and return ADTS 505 to depot for repair.
F4
Display shows error message.
Error detected. Refer to fault finding tables.
F5
Display does not show Leak Measure mode.
If display stops at Thermal Test.
System component fault.
Allow ADTS 505 to reach ambient temperature.
Record fault and return ADTS 505 to depot for repair.
F6 Fails SST.
Internal leak.
Internal fault.
Refer to further testing 5.5.
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5 - 6 Testing and Fault Finding
K0260 Issue No. 8
5.5 Further Testing
The following tests should only be carried out if a pneumatic leak or a controller instability is suspected.
Test Environment and Preliminary Operations
These tests should be carried out in a room with a stable temperature environment within the operating temperature range. The room must be free from drafts.
Review and become familiar with the whole of the test procedure before beginning the test
procedure.
The unit must be thermally stable; switch on and leave the unit for at least one hour to
achieve thermal stability.
Make sure the blanking caps are fitted to the Ps and Pt front panel outputs.
Change the units to mbar as follows:
(1) Select [UNITS] then select mbar and mbar/min.
(2) Select [Save/Lock] and then press CLEAR/QUIT and the display now shows ALT/Ps and
Speed/Qc in units of mbar.
Change the pressure limits to MAX as follows:
(1) Press SETUP then select [LIMITS].
(2) Use [ ] or [ ] to move through the list and press F3 to select MAX limits.
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K0260 Issue No. 8
5
On-screen Assessment (Figure 5-2)
This procedure enables real time assessment of the system. Each valve and transducer is
characterized to obtain maximum performance. Any values shown on the screen are an indication and not a precise value.
To assess the system, enter a set-point and a rate so that achieving the set-point takes at least 5 minutes. Once set and controlling, select setup and display the system data screen using the menu selection below
F
IGURE 5-2 SYSTEM SCREEN FOR DIAGNOSIS
SETUP
F4
F6
F2
(1 of 2)
Maintain Calibration
View Manifold
Setup
Maintenance
Setup
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5 - 8 Testing and Fault Finding
K0260 Issue No. 8
TABLE 5-2 SYSTEM SCREEN INFORMATION
Data Identifier Function Expected Display or Value
RPT Diagnostics Ps/Altitude Sensor
RPT Diode [mV] Temperature Compensation 400 (hot) ............. 800 (cold)
RPT Count Value proportional to pressure 248,553 .............4,473,600
TEMP [c] Ps channel (RPT) measured temperature 5°...... 60°C (over permitted ambient range)
PDCR Diagnostics Qc/Airspeed Sensor
PDCR Vc [mV] Temperature Compensation 980 ............. 2100
PDCR Vd [mV] Value proportional tp pressure 0 to 140 mV (always active)
Valve Diagnostics Pressure Output and Control
Ps Output Ps Port isolation valve state L:L <—> H:H (open) —:— (closed)
Pt Output Pt Port isolation valve state L:L <—> H:H (open) —:— (closed)
Ground Ground pressure sense valve state —:— (closed, normal), H:H (at ground)
Qc Zero Qc auto-zero valve state —:— (closed, normal), H:H (at ground, auto-zero)
Pressure Ps Ps pressure valve drive level 0 (Leak/Measure), varying to 9999 (control)
Vacuum Ps Ps vacuum valve drive level 0 (Leak/Measure), varying to 9999 (control)
Pressure Pt Pt pressure valve drive level 0 (Leak/Measure), varying to 9999 (control)
Vacuum Pt Pt vacuum valve drive level 0 (Leak/Measure), varying to 9999 (control)
Pump Diagnostics Controller Source Pressures
Pressure Pressure pump drive state POV (Pressure On Flow) or blank (pump off)
Vacuum Vacuum pump drive state VOF (Vacuum On Flow) or blank (pump off)
Processed information Major Measurement/Control Parameters
Ps
Ps Channel Pressure, mbar absolute 0 to 1355
Qc
Qc Channel Pressure, mbar differential -1355 to 2490
Pt
Pt Channel Pressure, mbar absolute 0 to 3845
ground
Ambient pressure estimate 800 to 1300
Ps VOL
System Ps volume estimate 0.125 (min) varies with connected system
Pt VOL
System Pt volume estimate 0.125 (min) varies with connected system
Characterisation Control Valve Data
PWM PPS VB Valve bias (VB) calculated in real time Variable with temperature
PWM PPS ERR Determined during manufacture or service operations Constant
PWM VPS VB Valve bias (VB) calculated in real time Variable with temperature
PWM VPS ERR Determined during manufacture or service operations Constant
PWM PPT VB Valve bias (VB) calculated in real time Variable with temperature
PWM PPT ERR Determined during manufacture or service operation Constant
PWM VPT VB Valve bias (VB) calculated in real time Variable with temperature
PWM VPT ERR Determined during manufacture or service operations Constant
Tertiary Information Other system control states
CAL: Calibration lock switch state Disabled (normal)
DUMP: Pump pressure vent state Shut (normal)
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Druck ADTS 505 User Manual 5 - 9
K0260 Issue No. 8
5
FIGURE 5-3 SYSTEM SCHEMATIC
Schematic shown on the advanced hand terminal
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5 - 10 Testing and Fault Finding
K0260 Issue No. 8
Key-pad Testing
The front panel key-pad and the hand terminal key-pad can be tested using the facility in the
maintenance/calibration selection of the set-up menu.
The procedure to test the key-pad requires each key to be pressed in turn and to confirm the correct key press on the display. Make sure the display shows only the appropriate key press.
Note:
Connecting the hand terminal disables the front panel key-pad.
F
IGURE 5-4 KEY-PAD TEST DISPLAY
Page 73
Druck ADTS 505 User Manual 5 - 11
K0260 Issue No. 8
5
Pressure leak check
This procedure verifies that the unit is leak tight under positive pressure conditions.
(1) Press LEAK MEASURE/CONTROL to enter control mode.
(2) Enter an ALT/Ps Aim of 1016 mbar.
(3) Enter a SPEED/Qc Aim of 272 mbar. Wait for the aim values to be achieved then wait
for 1 min.
(4) Press LEAK MEASURE/CONTROL to return to Leak Measure mode.
(5) Select [Rate Timer] and select [Set Wait 05:00], [Set Time 01:00] and then select [Start
Timing].
(6) At the end of the timing period, the display shows the rate of change of Ps, Qc and Pt.
(7) Check that the Ps, Qc and Pt rates are less than or equal to ±0.5 mbar/min. If the leak
rate is not achieved, allow further thermal stabilization time and re-test by selecting [Rate Timer] and selecting [Set Wait 05:00], [Set Time 01:00].
(8) Press CLEAR/QUIT to exit rate timer display.
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5 - 12 Testing and Fault Finding
K0260 Issue No. 8
Vacuum leak check
This procedure verifies that the unit is leak tight under vacuum conditions.
(1) Press LEAK MEASURE/CONTROL to enter control mode.
(2) Enter an ALT/Ps Aim of 100 mbar.
(3) Enter a Speed/Qc Aim of 0 mbar.
(4) Wait the required time for temperature stabilization e.g., one minute. Press LEAK
MEASURE/CONTROL return to Leak Measure mode.
(5) Select [Rate Timer] and select [Set Wait 05:00], [Set Time 01:00] and then select [Start
Timing].
(6) At the end of the timing period, press ROC/RtPs to display the measured rate of change
of ALT/Ps.
(7) Check that the Ps, Qc and Pt rates are less than or equal to ±0.5 mbar/min. If the leak
rate is not achieved, allow further thermal stabilization time and re-test by selecting [Rate Timer] and select [Set Wait 05:00], [Set Time 01:00].
(8) Press CLEAR/QUIT to exit rate timer display.
Range check
Control the Ps and Qc pressures to the normal limits of operation and make sure that these
are achieved. Use minimum Ps and zero Qc and then maximum Ps and maximum Qc.
Note: Do not exceed the maximum Pt as shown on the front panel of the unit. Use
maximum available rates of change to minimise test times.
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Druck ADTS 505 User Manual 5 - 13
K0260 Issue No. 8
5
Controller Stability
This section verifies the control stability.
(1) Press LEAK MEASURE/CONTROL to turn the pressure controllers on.
(2) Enter an ALT/Ps Aim of 510 mbar with a rate of change of 204 mbar/min.
(3) Enter a Speed/Qc Aim of 0 mbar with a rate of change of 204 mbar/min.
(4) Press ALT/Ps and wait for the aim values to be achieved.
(5) Observe the measured values of Ps and Qc on the display for 1 min.
(6) Check that the displayed value of Ps remains within ±0.068 mbar.
(7) Check that the displayed value of Qc remains within ±0.068 mbar.
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5 - 14 Testing and Fault Finding
K0260 Issue No. 8
5.6 Fault Finding
System Messages
In the event of a malfunction, the built-in, self-test and diagnostic system displays a message
and a code. The message heading Error indicates a fault or condition that interrupts normal operation. The following tables list the error messages with the probable cause and action to be taken.
If the display shows a message not listed in the tables the unit must be switched off. If the
display shows the same non-operational message after switching on, the unit should be returned to the repair depot.
TABLE 5-3 ERROR MESSAGES
Note: In No. 56, this safety feature opens the zero valve. If this happens constantly, check for leaks.
No. Message Probable Cause Action
7
Autoleak recovery activated
Excessive leak rate detected in Ps/Qc pressures
Check hoses and aircraft systems for leaks
31 Test set must be at ground Invalid user request Select Go to Ground first
32 Pressure leak in Ps.
Leaking Ps channel pressure control valve.
Return unit to repair depot.
33 Pressure leak in Pt.
Leaking Pt channel pressure control valve.
Return unit to repair depot.
36 Ps Aim Overshoot.
Connected system leak rate changing.
Check hoses and aircraft systems for leaks.
37
"Ps aim value unobtainable".
Leak rate on Ps too high to control.
Check port caps, hoses and connectors for leaks.
40 Pt Aim Overshoot.
Connected system leak rate changing.
Check hoses and aircraft systems for leaks.
41
"Pt aim value unobtainable".
Leak rate on Pt too high to control.
Check port caps, hoses and connectors for leaks.
4 Vacuum leak in Ps.
Leaking Ps channel vacuum control valve.
Return unit to repair depot.
4 Vacuum leak in Pt.
Leaking Pt channel vacuum control valve.
Return unit to repair depot.
4
Ps pressure control valve cannot be calibrated.
Valve fault. Return unit to repair depot.
56 Stabilising Qc to Zero.
Possible negative airspeed detected, possible sudden leak.
System zero valve opened to stop negative airspeed condition.
57
Current Pressure Limits Exceeded.
Limits for Ps or Qc exceeded.
Make sure pressures are within limits, check leak rates.
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Druck ADTS 505 User Manual 5 - 15
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5
TABLE 5-3 ERROR MESSAGES (CONTINUED)
No. Message Probable Cause Action
219 Abort sequence started by user
Abort key pressed on hand terminal
Wait until system completes abort sequence
220
"Cannot Modify Altitude Correction in Pressure Units"
Altitude Correction
Change units in setup to aero units
221 "Changed Aim to ARINC Limit"
Value out of ARINC limit range
Re-enter value within allowed range
222 Calibration data failed
Incorrect pressure value entered during calibration
Check and enter correct pressure value for reference pressure point
223 "Cannot enter EPR in Aero Units"
EPR selected with aero units displayed
Change units in setup to pressure units then select EPR
227 "Changed Aim to Current Limit" Value out of limit range
Re-enter value within allowed range
228 "Limit Overlap"
Value conflicts with limit ranges
Re-enter value within allowed range
229 "Limit Saved"
Value out of acceptable range
Re-enter value within allowed range
241 "Ground Request in Leak Mode"
System must be in control mode
Select control mode
243
"LDK has an invalid EEPROM archive"
Invalid/corrupted data
- recovery in progress
Check custom limit sets not lost
245
"Controller has an invalid EEPROM archive"
Invalid/corrupted data
- recovery in progress
Check/correct calibration
247
"Handset has an invalid EEPROM archive"
Invalid/corrupted data
- recovery in progress
250
"Vacuum pump processor has failed"
Internal fault
Return unit to repair depot
251
"Vacuum pump lead is disconnected"
-
Return unit to repair depot
252
"Vacuum pump transistor is faulty or drive inhibited"
Internal fault
Return unit to repair depot
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5 - 16 Testing and Fault Finding
K0260 Issue No. 8
TABLE 5-3 ERROR MESSAGES (CONTINUED)
No. Message Probable Cause Action
253 "Vacuum pump has stalled" Internal mechanical fault
Restart system, if fault repeats
-return unit to repair depot
254
"Pressure pump processor has failed"
Internal fault Return unit to repair depot
255
"Pressure pump lead is disconnected"
- Return unit to repair depot
256
"Pressure pump transistor is faulty or drive inhibited"
Internal fault Return unit to repair depot
257 "Pressure pump has stalled" Internal mechanical fault
Restart system, if fault repeats
- return unit to repair depot
260
"Connected handset has failed to respond. Disconnecting power."
Handset bad connection or comms/power supply fault
Check connections and restart, if fault repeats - return unit to
261
"Calibration switch has not enabled."
Switch not selected Set calibration switch
262
"Valve characterisation data is invalid. Restoring from FLASH."
Invalid/corrupted data, recovery in progress
Allow for complete recovery before continuing
263 to
290
"Valve constant out of range” Essential system data failure Return unit to repair depot
293
"Limit entry changed to MAX limit set"
User tried to enter limit out of range of instrument
Re-enter within maximum range of instrument
295 "CAS is outside MAX limits"
Differential pressure applied at Ps/Pt ports over-range
Check/reduce Ps/Pt pressure applied to ADTS 505
296 "Alt is outside MAX limits"
Pressure applied at Ps port over­range
Check/reduce Ps pressure applied to ADTS 505
297
"ROC is outside MAX limits"
Rate of pressure change at Ps port too high
Check/correct hose or aircraft system Ps leak
298
"Qc is outside MAX limits"
Differential pressure applied at Ps/Pt ports over-range
Check/reduce Ps/Pt pressure applied to ADTS 505
299
"Ps is outside MAX limits"
Pressure applied at Ps port over­range
Check/reduce Ps pressure applied to ADTS 505
300
"RtPs is outside MAX limits"
Rate of pressure change at Ps port too high
Check/correct hose or aircraft system Ps leak
309
"Hand terminal short circuit" Faulty cable or hand terminal
Check cable, if necessary, replace hand terminal
312 "RtCAS is fixed and cannot be
altered"
User attempted to enter alternative RtCAS aim
None, RtCAS is pre-set and locked at 300kts/min
313 "Calibration data not entered.
Enter calibration date"
Date entry step missed in calibration procedure
Enter date field requested
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Druck ADTS 505 User Manual 5 - 17
K0260 Issue No. 8
5
Additional Messages
Internal temperature
The temperature sensor in the pressure measurement system measures the temperature of
the pressure manifold. At a temperature greater than 60°C the sensor triggers an overheat fault. In measure mode, the display flashes between the normal aim/measure screen and "Ps Sensor Outside Calibrated Range". In control mode, the display shows "CONTROL HALTED" the system stops controlling and switches off the pumps. When the sensor detects a temperature of 55°C the display stops flashing.
Before re-entering control mode check the air vents for obstructions. To re-enter control
mode press LEAK MEASURE/CONTROL twice. If this overheat fault happens again switch off the unit and return to repair depot.
Page 80
5 - 18 Testing and Fault Finding
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Intentionally left blank
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Druck ADTS 505 User Manual 6 - 1
K0260 Issue No. 8
6
6 REFERENCE AND SPECIFICATION
6.1 Introduction
This section includes a full description of each key-pad selection and function, the main menu selections and functions and set-up selections and functions.
The available keys are:
F1 - F6 ALT Ps SPEED Qc MACH Pt ROC Ps RATE RATE LEAK MEASURE/CONTROL GROUND HELP SETUP 0 to 9
- 000 CLEAR/QUIT DELETE ENTER
.
Double key press:
ABORT (CLEAR/QUIT + ENTER)
6.2 Key-pad Selections and Functions
F1 - F6
These function keys or soft-keys are used to select choices from menus. The main menu
choices are shown next to the keys. After making a menu choice, the display shows further selections in a sub-menu or the display changes indicating a successful selection.
When a sub-menu is displayed, press the appropriate function key to select the required
choice.
CLEAR/QUIT can be used to leave a sub-menu without making a selection.
Page 82
6 - 2 Reference and Specification
K0260 Issue No. 8
ALT Ps
In aeronautical units (ft or m), this key selects an altitude display.
In pressure units (mbar, inHg etc.), this key selects a static pressure (Ps) display.
Select [Units], from the main menu, to change the display units.
Before entering a new altitude or Ps aim, set the rate of change using the ROC/RATEPs key.
When in Control Mode (Aim display), enter a new altitude or Ps aim using the numeric keys.
Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
SPEED Qc
In aeronautical units (kts, km/h), this key selects an airspeed (CAS) display. In pressure units
(mbar, inHg etc.), this key selects dynamic pressure and the display shows (Qc).
Note: For testing purposes, Calibrated Airspeed (CAS) equates to Indicated Airspeed (IAS).
If the altitude aim is changed, after the entry of CAS, the Mach aim value changes while the
CAS value remains unchanged.
If the altitude aim is changed, after the entry of Mach, the CAS aim value changes while the
Mach value remains unchanged.
If the Ps aim is changed, after the entry of Qc, then the Pt aim value changes while the Qc
remains unchanged.
If the Ps aim is changed, after the entry of Pt, then the Qc aim value changes while the Pt
remains unchanged.
Select [Units], from the main menu, to change the display units.
The rate of change is fixed at 300 kts/min or equivalent.
When in Control Mode (AIM display), a new CAS or Qc can be entered using the numeric keys.
Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
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MACH Pt
In aeronautical units (ft/kts or m/km/h), this key selects the Mach display.
In pressure units (mbar, inHg etc.), this key selects the total pressure (Pt) display.
If the altitude aim is changed, after the entry of CAS, the Mach aim value changes while the
CAS value remains unchanged.
If the altitude aim is changed, after the entry of Mach, the CAS aim value changes while the
Mach value remains unchanged.
If the Ps aim is changed, after the entry of Qc, then the Pt aim value changes while the Qc
remains unchanged.
If the Ps aim is changed, after the entry of Pt, then the Qc aim value changes while the Pt
remains unchanged.
When in Control Mode (AIM display), a new Mach or Pt aim can be entered using the numeric
keys, Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
ROC Ps RATE
In aeronautical units (ft or m), this key selects the Rate of Climb (ROC) or vertical speed
display.
In pressure units (mbar, inHg etc.), this key selects the rate of change of Ps display.
Select [UNITS], from the main menu, to change between aeronautical and pressure units.
When 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. The default control rate set at manufacture is 3000 ft/min.
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RATE
In aeronautical units (kts, km/h), this key shows the rate of change of airspeed (Rate CAS).
In pressure units (mbar, inHg etc.), this key shows the rate of change of pressure (Rate Qc)
display.
In leak measure mode the display shows the current rate of change. In control mode this key
selects the fixed rate of change of airspeed (Rate CAS) of 300 kts/min or the equivalent rate (Rt Qc) in pressure units/min.
Select [UNITS], from the main menu, to change between aeronautical and pressure units.
Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
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LEAK MEASURE/CONTROL
This key switches between Control and Leak Measure mode.
When in leak measure mode, the display shows “LEAK MEASURE”.
Press LEAK MEASURE/CONTROL to switch the controllers on. No significant pressure
transients are produced when regaining control.
When in control mode, the display shows “Aim Value”.
A built-in safety feature called auto leak recovery protects the aircraft systems during leak
testing.
Auto Leak recovery automatically regains control if the leak rate is too high on either
channel. The trip values are set by the manufacturer to 3000 ft/min and 300 kts/min.
Auto Leak recovery can be switched on/off by pressing SETUP, [Setup 2 of 2], [Auto Leak],
ON/OFF.
GROUND
This key enables the automatic control of the pressures in the aircraft system to return to
local atmospheric pressure.
Note:
The "go-to-ground" operates only in control mode.
The ADTS 505 records local atmospheric pressure during the power-up sequence.
When GROUND is pressed, a prompt asks the user to confirm YES or NO. The system
automatically enters an altitude or static aim equivalent to local atmospheric pressure (QFE) and an airspeed or dynamic pressure aim of zero. The system controls pressures towards these aims in the normal way and at the set rates. At any time when going-to-ground, a new rate of change can be entered, the ADTS 505 continues `going-to-ground'.
At any time during `going-to-ground', a new value aim for ALT, CAS, Mach, Ps, Qc or Pt can be
entered. This causes the procedure to stop and normal controlling operation to start.
When the system completes the go to ground the display shows the message `Safe at
Ground' with the ground and zero valves open.
Press CLEAR /QUIT to continue with normal operation. The ground and zero valves then
automatically close.
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0 to 9
Use these keys for numeric entry. Press ENTER to complete numeric entry. All data entry is
based on over-writing the existing value.
If a mistake is made during numeric entry, press DELETE to remove the last entered digit. At
any time, the existing value may be recovered by pressing CLEAR/QUIT.
Note: Once the ENTER key has been pressed, the old number cannot be restored.
-000
This key performs two functions during numeric entry.
If it is the first numeric key pressed, it produces a minus sign for the entry of negative
numbers.
If it is not the first key pressed during numeric entry, it produces three zeros for fast entry of
thousands e.g. to enter -1000,
Press -000 (Display shows -) Press 1 (Display shows -1) Press -000 (Display shows -1000)
Note: When -000 is pressed during entry of an aircraft name for limits, 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.
When a display contains a [Save/Settings] option, making this selection saves the new
settings; pressing CLEAR /QUIT restores the old settings. For all other displays, pressing CLEAR /QUIT saves the changes.
When the display shows a warning message, pressing CLEAR /QUIT removes the message.
DELETE
During numeric entry, DELETE removes the last digit entered.
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HELP
The HELP key provides information on each key function. The help message generally gives
associated functions and ways of changing the use of each key. When the display shows the main pressure display, the user can get help on any of the keys on the key-pad. To do this:
Press the required key for information, then press HELP.
Press CLEAR/QUIT to exit the help system.
ENTER
Press ENTER to complete a numeric entry.
CLEAR/QUIT + ENTER (ABORT)
When CLEAR/QUIT and ENTER are pressed simultaneously, the ADTS 505 restarts from the
power-up sequence.
When these keys are pressed all output valves immediately close, isolating the aircraft
systems.
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.
If the system is restarted by pressing ABORT, it vents to atmosphere during the power-up
sequence. The aircraft systems remain at the original pressures. At a later stage in the power-up sequence, the aircraft system pressures are sampled and the Ps (static) and Pt (pitot) channels reconnected with a small pressure loss.
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Main Menu
In the Leak Measure and Control modes the display shows and provides further selections.
[Rate Timer]
The Rate Timer starts an internal timer for a pre-defined set of times. On the completion of
the time period, the display shows the average rate of change over the time period.
The pre-defined time period with an associated wait period allows pressures to settle before
the timing starts. The wait period counts down to zero before the time period starts.
Rate timing
Press LEAK MEASURE/CONTROL to select Leak Measure mode and, from the main menu,
select [Rate Timer]. The display shows the default time of 1.00 minutes and a wait time of
1.00 minutes. Select each in turn and using the numeric keys change the time and rate time to the required values.
Select [Start Timing] to begin the test. The display shows "Waiting: 0.00" at the bottom of the
screen and counts down the waiting period. The display then changes to "Timing: 0.00" and counts down the timing period. After the timing period the ROC and RtCAS changes to Timed Leak Measure and shows the units/min leak rate.
Pressing one of the parameter keys (e.g., ALT/Ps, ROC/RtPt, SPEEDQc etc.,) or QUIT/CLEAR
cancels the Timed Leak Measure display and returns to the Leak Measure display.
At any time during rate timing or when a timed value is displayed, selecting [Rate Timer]
allows for either the restarting or cancelling of the timing. When timing is cancelled, the rate displays returns to instantaneous values.
The timed average value remains until a new aim is entered. During this time, it is possible to
view any parameter.
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[Units]
The list of units shown in the main menu divide into aeronautical units and units of pressure
measurement. The display shows the available units selected from the list in the set-up menu. Select the units and then press CLEAR/QUIT. The available units are:
Example
Aeronautical units:
ft and kts (ft/min) (includes Mach) m and km/h (m/min) (includes Mach)
Units of pressure measurement:
mbar
Note: See set-up to change to another unit of pressure measurement.
Selecting [Units] F4, from the main menu, displays the three available sets of units as follows:
F1
F2
F3
F4
F5
F6
F2
Units
Main Menu
ft kts ft/min m km/h m/min
mbar mbar
/min
Save Settings
Units
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[EPR]
Engine Pressure Ratio only operates in units of pressure measurement (mbar, inHg etc.) with
a set of pre-defined limits, see section 1. The ADTS 505 can be used to check EPR sensors, indicators and EPR data for engine control systems.
Note: Altitude correction applies to EPR values, make sure this correction does not adversely
affect accuracy. The difference in height between the ADTS 505 and the EPR sensor may be different to the altitude correction previously set for the aircraft instruments.
For EPR testing, use Ps as INLET pressure and EPR to set the ratio of OUTLET pressure (Pt) to
INLET pressure (Ps).
Before entering a new EPR aim, the rate of change should be set by selecting [EPR Rate] on
the Main Menu.
When in Control Mode (AIM display), a new EPR aim can be entered using the numeric keys.
Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
Rate EPR
When in Control Mode (AIM display), the rate of pressure change can be set using the
numeric keys. Use LEAK MEASURE/CONTROL to change between Control and Leak Measure mode.
[Hold]
Selecting [HOLD] causes a changing pressure to instantaneously hold. Selecting [HOLD]
again releases the pressure to continue to the aim value. The [HOLD] facility applies to both channels simultaneously.
[HOLD] automatically releases when LEAK MEASURE/CONTROL is pressed entering Measure
Mode.
[Nudge]
Changes the current aim value [ or ] by a set increment value (2 ft, 0.2 kts, Mach 0.02).
This facility can be used to align a pointer of an instrument to a precise indicated value and
compare this indicated value with the measured value.
This facility may be used for pressure switch testing as follows: ¤ Aim for a pressure just below the expected operating point.
¤ When the pressure is achieved, repeatedly press until 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.
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6.3 SETUP
Set-up allows access to secondary functions that do not have an assigned key and are not part of the main menu.
6.3.1 Set-up 1 of 2
[Display], [Single, Dual, Quad, Hand Term]
In leak measure mode, after each parameter, the display shows "Leak Measure". In control mode the display changes to Aim = after each parameter.
Single
The display shows a single parameter. When set, pressing a key-pad function key, the display changes the displayed parameter. The display will not change if RATE is pressed when ROC/RtPs is displayed.
Dual
The display shows two parameters only one can be a rate. The display will not show RtCAS and ROC/RtPs together and automatically changes to show CAS or ALT respectively. The display highlights the last selected parameter.
Quad
The display shows four parameters, pressing a key-pad function key, changes a displayed parameter and causes the display to highlight the last selected parameter.
Hand Term
This option has two display settings, see paragraph 6.4 for details.
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[Units]
The list of units in the set-up menu divide into aeronautical units and units of pressure
measurement. The available units are:
Aeronautical units
ft and kts (ft/min) (includes Mach) m and km/h (m/min) (includes Mach) m and mph (m/s) (includes Mach) m and km/h (hm/min) (includes Mach)
Units of pressure measurement
mbar inH
2
O 60°F
inHg psi mmHg hPa inH
2
O 4°C kPa
inH
2
O 20°C
Selecting [Units] from the main menu displays the three available sets of units, to change the available sets, press SETUP and select:
[Setup units]
Select a parameter to change (i.e., ALT/Ps), the current unit in [brackets].
The display shows units of altitude: ft or metres and pressure units. Similarly, selecting the other parameters causes the display to show appropriate units. After selecting the required units, select {Save Settings} and then repeatedly press CLEAR/QUIT to return to the main menu.
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[Limits]
The ADTS 505 is preprogrammed with the manufacturer's standard, civil and maximum limit
sets (STD, CIVIL and MAX). This facility enables five sets of additional limits to be programmed and allows the selection of a set of limits to be used; each additional set of limits can be identified by its aircraft name or type.
To access limit sets for editing values, select enter PIN and use [ or ] to step through the
aircraft names highlighted in the display. After changing the limits, select [Save Settings] press CLEAR/QUIT to save and exit.
Each set of limits contains:
The selected set of limits remain active until the selection of another set of limits or until
power supply switch-off. At each power-up sequence the default set of limits "CIVIL" become active. The "CIVIL" limit set contains the lowest ranges and values.
If the selected set of limits results in the measured pressures being outside the limits, the
display shows the warning message "Changed entry to current limit" the system automatically changes the aim value to within the selected limits. This warning message is also displayed if the pressures measured directly after power-up are outside the limits used at power-up.
After selecting a set of limits, the altitude correction value can be changed using SETUP,
[Altitude Correction], [Alt. Corr.]. The display shows the altitude correction (in ft or m) below the mode message.
New Limits
CAUTION:USING INCORRECT LIMITS CAN CAUSE DAMAGE TO SENSITIVE COMPONENTS AND AIRCRAFT
SYSTEMS.
Before creating new limits refer to the appropriate Component Maintenance Manual or
Aircraft Maintenance Manual for the actual minimum and maximum values to be applied.
A PIN protects access to the sets of limits that can be created, renamed or edited. Druck
recommends that only personnel of supervisor level have access to these limit sets.
(Page 1 of 2) Max ALT Min ALT Max CAS Min CAS Max Mach Max ROC Max Rate CAS ARINC limits on or off Altitude correction value
(Page 2 of 2) Max Ps Min Ps Max Qc Min Qc Max Rate Ps Max Rate Qc
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After manufacture the ADTS 505 only contains the pre-defined limit sets. To create the first
user-defined set, use the to step down the list. At the bottom of the list press again, select [Modify Name], F5 and using the seven screens of characters compose the name of the new limit set, press ENTER. Select [Modify Details], F4, set the units (aeronautical and pressure) to be used and, after each entry of a completed value, press ENTER.
ARINC Limits
The ARINC 565 limit can be selected ON or OFF in a set of user defined limits. When selected,
the values entered and/or achieved in control mode are checked within the operating envelope of the ARINC 565 limits.
F
IGURE 6-1 ARINC 565 LIMITS GRAPH
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[Alt. Corr.]
Altitude Correction (Figures 6-2 and 6-3)
This function allows the altitude correction value to be changed. The display shows the
altitude correction value in the lower part of the display screen.
The altitude correction facility corrects for the pressure difference when the ADTS 505 and
the aircraft system or UUT are at different heights.
Enter the height difference between the aircraft system or UUT and the ADTS 505 reference
level. If the ADTS 505 front panel is vertical, use a reference level of the mid point on the front panel. If the ADTS 505 front panel is horizontal, then use the reference level of the top of the case. If the aircraft system or UUT is below the ADTS 505, enter the value as a negative number.
The units of altitude correction are the current aeronautical units.
F
IGURE 6-2 ALTITUDE CORRECTION ON-AIRCRAFT
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FIGURE 6-3 ALTITUDE CORRECTION OFF-AIRCRAFT
[Date Format]
The format of the date can be changed to satisfy local requirements.
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6.3.2 Set-up 2 of 2 [Operational Hours]
This display shows the total number of hours for system
operation and the total number of hours of pump operation. The system records, as a background task, the total running hours of the unit. At an appropriate time before the 1000 and 3000 servicings are due a message is added to the power-up display sequence reminding the user of the hours to go before a servicing.
[Software Versions]
This display shows the master software version
reference for the product followed by the component versions used by the display and key-pad [LDK], the system controller and the optional hand terminal.
[Security]
Two PIN codes (level 1 and 2) protect access into two sensitive settings menus. Level 1 allows
access to the sets of operating limits. Level 2 allows access to the system calibration/ characterisation menu. This security menu allows the code or number of digits to be changed. Both PIN code can be up to 10 digits. A single
zero disables the PIN protection,
allowing unrestricted access to the settings.
[Maintain Calibration]
[Test Keypad]
The display shows a schematic of the key-pad with indications of each key press. A test procedure for the key-pad test is detailed in section 5, Testing and Fault Finding.
[View Manifold]
The display shows a table of the current system data values with real time indications of the status of the valves and the transducers. This facility provides a method of performance assessment by showing actual system values which can be compared with the known system parameters. A fault finding procedure for the system is detailed in section 5, Testing and Fault Finding.
[Enter PIN]
After entering the correct level 2 PIN, this facility allows access for servicing technicians to characterise the valves or calibrate the pressure sensors though additional menus.
F1
Setup (2 of 2)
Setup
Operational Hours
Software Versions
Security
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[View Manifold]
¤ This facility is the same as view manifold (above) but within the PIN protected area.
[Valve Calibration]
¤ The system operates the apply and release valves, measures performance, calculates
and stores the characteristics of each valve. This takes approximately 20 minutes to complete.
Note: To complete this set-up requires additional equipment and should only be carried out at
approved equipment service centres.
[Work Valves]
¤ Should a valve be replaced and, before valve calibration, the new valve requires
exercising to bed into the valve seat. The recommended time for this function is 8 hours. Selecting this function operates each apply and release valves every second until Cancel Test is selected.
[Cancel Test]
¤ This stops the work valves function.
[Calibrate Sensors]
¤ The calibration function requires the calibration switch on the front panel to be enabled.
This procedure must be carried out by a qualified calibration technician, the details of calibration are contained in the Druck Calibration Manual for the ADTS 505.
[Auto Leak]
The ADTS 505 protects the aircraft system against leaks in the aircraft system. The system
protection operates:
¤ Automatically regains control if the leak rate is greater than the parameter rate (RtPt,
ROC) during leak testing.
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6.4 Other Features
Elapsed Time Counter
The system records, as a background task, the total running hours of the unit and the pump running hours. This facility assists with the scheduling of the 1000 hour and 3000 hour servicings.
Auto Zero
This function optimizes airspeed accuracy at low airspeeds. The ADTS 505 performs an auto
zero when the following conditions are met:
1. The ADTS 505 is in Leak/Measure mode.
2. Ps and Pt pressures are stable.
3. The airspeed is less than 20 knots (or Qc equivalent).
The auto zero starts five minutes after entering Leak/Measure mode providing conditions 2
and 3 are met and thereafter, every five minutes.
The auto zero sequence can be interrupted at any time by entering a new command (key
press).
Hand Terminal Option A
The hand terminal option connects to the front panel through an 18 metre cable and
connector. Both the hand terminal and front panel key-pad and display provide the same information. All selections that can be made by the front panel key-pad can be made by the hand terminal key-pad.
The system auto-detects the hand terminal at power-up or when connected and
automatically disables the front panel key-pad. The front panel display can be set to show the message "Remote Hand Terminal Operating" or to monitor mode showing the current values and modes selected by the hand terminal. In monitor mode the front panel display shows only these values and modes but no function key selections.
To change between message and monitor selections go to set-up, display, F6 Hand Term
[Monitor]. Press F6 to switch between [Monitor] and [Message].
Advanced Hand Terminal Option B C
AUTION:
DO NOT USE SHARP OBJECTS ON THE TOUCH SCREEN; USE THE STYLUS (SUPPLIED AND
RECOMMENDED). A SHARP OBJECT WILL PERMANENTLY DAMAGE THE TOUCH SCREEN, IT CANNOT BE REPAIRED.
The advanced hand terminal provides a Windows®-based, touch-sensitive colour screen to
up-load and down-load user-defined test programs. When connected the system auto­detects the advanced hand terminal and disables the front panel key-pad. The front panel display shows "Remote Hand Terminal Operating" (message/monitor) or the current values and modes of the advanced hand terminal (monitor). The display (Figure 6-6) shows the main operation menu with selections for system set-up, test sequence file screen and manual control screen.
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F
IGURE 6-4 INTERCONNECTION
Uploading and downloading operations using the PC communications cable, power pack and power supply cable
191-198
Normal operation using option A and option B
ALTPsSPEEDQcMACH
Pt
ROC
RATEPs
GROUND
RATE
7
F6
F5
F4
F3
F2
F1
4
1 _
000
8
5
2
0
9
6
3
.
CLEAR
QUIT
ABORT
DELETE
ENTER
LEAK MEASURE
CONTROL
HELP SETUP
REMOTE
HAND
TERMINAL
OPERATING
Option A Hand Terminal
Option B Advanced Hand Terminal
AirData Test Set - HandTerminal
LeakMeasure
LE
A
K
M
E
A
S
U
R
E
M
O
D
E
M
a
c
h
0
.0
0
1
Mach
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