Curtiss-Wright D51600 Operation & Calibration Manual
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Curtiss-Wright D51600 Operation & Calibration Manual

Pitot-static leak tester
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PITOT-STATIC LEAK TESTER
TYPE D51600
Operation & Calibration Manual PIM 417-O
Issue 5 November 2009

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Summary of Contents for Curtiss-Wright D51600

  • Page 1 PITOT-STATIC LEAK TESTER TYPE D51600 Operation & Calibration Manual PIM 417-O Issue 5 November 2009...

  • Page 3: Table Of Contents

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 CONTENTS SUBJECT PAGE INTRODUCTION ........................1 SPECIFICATION ........................3 1. PHYSICAL DIMENSIONS..................... 3 2. POWER SUPPLY........................3 3. OPERATIONAL LIMITS ......................3 Pitot .......................... 3 Static ........................3 4. INPUT............................ 3 5. OUTPUT..........................3 6.
  • Page 4 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Setup Mode ......................12 Maintenance Mode....................12 3. OPERATIONAL OVERVIEW ....................12 4. SETUP ..........................13 5. LEAK TEST MODE ......................14 6. PRESSURE CONTROL MODE ..................20 7. SETUP MODE........................21 8. MAINTENANCE MODE ...................... 22 9.
  • Page 5 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 CONTENTS LIST OF ILLUSTRATIONS FIG. NO. TITLE PAGE Figure 1 'Micro Leal' Case Assembly ..................5 Figure 2 'Micro Leak' Pitot-Static Leak Tester................7 Figure 3 PSLT Front Panel...................... 11 Figure 4 Initial Power On Screen..................... 13 Figure 5 Battery Status (80% Power Available) ..............
  • Page 6 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 This Manual is the proprietary product of Penny & Giles Aerospace Limited and is protected under international copyright laws. The copying of all or part of this document shall be with the written permission of the Licensor only.

  • Page 7: Introduction

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 INTRODUCTION This manual describes the operation and calibration of the Penny & Giles Aerospace Limited Pitot- Static Leak Tester (PSLT) Type 051600. The PSLT, known as the 'Micro Leak', provides 1 st Line leak testing of aircraft altitude and airspeed systems.
  • Page 8 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 THIS PAGE IS INTENTIONALLY BLANK Issue 5 November 2009 Page 2...

  • Page 9: Specification

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 SPECIFICATION 1. PHYSICAL DIMENSIONS Overall Dimensions: 192.3 mm x 110 mm x 210 mm Front Panel: 147.4 mm x 77 mm Weight: 2.3 kg, maximum Output Port: push-to-fit pipe 2. POWER SUPPLY Battery Voltage: 10 x 1.5 V d.c.

  • Page 10: Accuracy (At +25° C)

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 6. ACCURACY (At +25° C) Pitot Leak Accuracy: ± 0.3% FSO (340 mbar) or ± 0.6 knot/minute @ 430 knots Static Leak Accuracy: ± 0.3% FSO (340 mbar) or ± 37 feet @ 10000 feet above sea level...
  • Page 11 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Figure 1 'Micro Leal' Case Assembly Issue 5 November 2009 Page 5...
  • Page 12 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 THIS PAGE IS INTENTIONALLY BLANK Issue 5 November 2009 Page 6...

  • Page 13: Description

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 DESCRIPTION 1. INTRODUCTION The Penny & Giles 'Micro Leak' Pitot-Static Leak Tester (PSLT) is a microprocessor-controlled system which primarily generates pitot and static pressures in order to leak test air data equipment to ensure leak rates are compliant with standards specified for it.

  • Page 14: Case

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 3. CASE The yellow plastic case is constructed in three parts for ease of manufacture and repair. The two mating sides and the front panel are secured together with silicone 0- ring seals embedded between to protect against ingress of dirt and moisture.

  • Page 15: Pneumatic Assembly

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 The front cover to the battery compartment is removeable and is fitted with a polypropylene retaining strap, or lanyard. Sealing is provided by a neoprene foam seal and the cover is secured to the case using two 90 degree, or % turn, slotted Dzus fasteners.
  • Page 16 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 THIS PAGE IS INTENTIONALLY BLANK Issue 5 November 2009 Page 10...

  • Page 17: Operation

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 OPERATION 1. INTRODUCTION The PSLT is designed to perform the following basic functions: A. Positive and negative pressure generation B. Differential pressure measurement C. Pressure rate control D. Control of Set Point pressure E.

  • Page 18: Operational Modes

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 2. OPERATIONAL MODES Five modes of operation are available. Three primary operational modes are available following normal power up, while a fourth, subsidiary, mode is accessed during power up by pressing the PWR key with the START key.

  • Page 19: Setup

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 For tests where accurate absolute pressure measurement is required, i.e. for Static tests measured in feet, the Operator must enter the Pressure Of The Day (POTD). The PSLT will automatically recalibrate itself to carry out precision measurement to the point selected.

  • Page 20: Leak Test Mode

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Figure 6 Menu Option 1 NOTES: If the self-test routine detects a fault the screen will not display the first main menu. Instead a fault message is displayed, together with a fault code. In the event of a fault message appearing on the screen, contact Penny &...
  • Page 21 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Figure 7 Selecting Operational Mode Select the desired mode by using the SEL key to toggle between Pitot and Static. As the selected mode is changed, the associated flag will change correspondingly. The presence of the appropriate flag is a constant reminder during later stages of the test of which mode has been selected.
  • Page 22 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 (3) Checking Period 3 minutes (4) Power Down Period: 2 minutes. The Set Point value can be changed within this menu but the remaining parameters must be changed via Main Menu 3 (refer to paragraph 7).
  • Page 23 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 NOTE: When the START key is pressed, the Set Point selected will be saved as the default value for the next test and each measuring unit has its own default value. Figure 10 Pre-Pressurisation Screen M.
  • Page 24 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Figure 11 System Pressurisation Q. If STOP is pressed at any time during the test, the test is paused and the PSLT goes into the Pressure Monitor Mode. Actual pressure and leakage rate per minute are displayed (Figure 12.
  • Page 25 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 R. When Set pressure has been achieved, the PSLT enters its settling mode (either the default time of 2 minutes or the time set under Main Menu 3). The screen displays the caption 'SETTLE' and also the remaining time (Figure 14).

  • Page 26: Pressure Control Mode

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 At the end of the checking period, the screen will display the total leakage over the set time period, together with a message that the test is completed (Figure 17). Figure 17 Leak Test Completed W.

  • Page 27: Setup Mode

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Figure 18 System Pressurisation F. In this mode, the system will continue to control to the Set Point until the STOP key is pressed to enter the Pressure Monitor Mode. As with the Leak Test Mode, the Pressure Control Mode allows the Operator to restart the test and to increase or decrease the value of the Set Point while the system is pressurised.

  • Page 28: Maintenance Mode

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 The duration of any period is changed as follows: A. When 'Menu 3 SET UP' is displayed on screen, press the START key. B. The screen for changing the settling period will be displayed (Figure 20).

  • Page 29: Battery Replacement

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 F. Menu 6 is used to select by which keying method faster pressurization and venting rates are obtained. Pressing the START key gives access to the Rate Toggle Mode screen. Pressing SEL from this screen gives access to the Normal Rate Mode. Pressing SEL again returns to the Rate Toggle Mode.

  • Page 30: Replacement

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 B. Replacement To replace the batteries, unfasten the two 90 degree, or 1/4-turn, slotted Dzus fasteners securing the Battery Compartment Cover and carefully remove the cover. Care must be taken not to pull too fast which would result in the battery holder being prematurely expelled from the compartment, leading to possible damage to the connecting power cable.

  • Page 31: General

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 A. General As an option to using Alkaline Manqanese Dioxide batteries, the PSLT is supplied with two battery packs containing NiMH rechargeable batteries. Prior to use, they must be fully charged using the Accumax C512MD-01 Battery Charger provided as part of the 'Micro Leak' Case Assembly.

  • Page 32: Troubleshooting

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 Disconnect the two battery packs from the charger. The Channel 1 and 2 LED extinguish on removal of the battery packs. D. Troubleshooting If the front panel power LED fails to illuminate, check that the connected supply is within the correct range.

  • Page 33: Calibration

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 CALIBRATION 1. INTRODUCTION The PSLT must be calibrated on a two-yearly basis against a Primary Calibration Standard, which is itself traceable to a National Standard. Following calibration against such a standard, the PSLT may be classed as a Secondary Standard item of equipment.
  • Page 34 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 B. Press the SEL key twice to select Maintenance Menu 3, CALIBRATION. The screen prompts for a password (Figure 20). The password is a 4-digit number and four asterisks are displayed; the first of which (reading from the left) is shown flashing.

  • Page 35: Post-Calibration Functional Checks

    PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 H. Press the SEL key to move to the next Set Point for calibration (-170 mbar). J. Set the Pressure Controller to generate a pressure of -170 mbar. Allow the Controller to stabilise at the control point.
  • Page 36 PIM 417-O PITOT-STATIC LEAK TESTER TYPE D51600 THIS PAGE IS INTENTIONALLY BLANK Issue 5 November 2009 Page 30...
  • Page 38 Penny & Giles Aerospace Ltd. 1 Airfield Road Christchurch Dorset BH23 3TH UK Tel. +44 1202 409409 Fax +44 1202 484846 Registered in England No. 2336358 VAT Registration No. 806 6586 08...

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