Belfort AWOS Manual de usuario

BELFORT

INSTRUMENT Co.

800-937-2353 www.Belfortinstrument.com

Belfort ®

Automated Weather

Observing System

AWOS

Maintenance Manual

Proprietary

Prepared in Response

to the

FAA, Automated Weather Observing System (AWOS)

Requirements

Aug. 2014

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BELFORT INSTRUMENT Proprietary Information

Table of Contents

Maintenance Manual

Paragraph Description Page

1.0 Introduction....................................................................................................... 1

1.1 Purpose.............................................................................................................. 1

1.2 Scope................................................................................................................. 1

1.3 Level of Maintenance ....................................................................................... 1

1.4 Periodic Maintenance........................................................................................ 1

1.5 Warranty ........................................................................................................... 1

1.6 Warranty Support.............................................................................................. 2

2.0 Applicable Documents & List of Acronyms .................................................... 3

2.1 Applicable Documents...................................................................................... 3

2.2 List of Acronyms .............................................................................................. 3

3.0 Maintenance Program Overview ...................................................................... 5

4.0 Qualification Requirements for Maintenance Personnel.................................. 5

5.0 Preventative Maintenance and Calibration Procedures .................................... 6

5.1 DATU –Data Acquisition Terminal Unit Maintenance.................................... 7

5.1.1 DATU Tri-Annual Maintenance....................................................................... 7

5.1.2 DATU Annual Maintenance............................................................................. 9

5.2 DCP Annual Barometric Pressure Sensor Maintenance & Calibration ........... 11

5.3 Temperature, Humidity and Dew Point –Annual Maintenance & Verification

Procedures......................................................................................................... 17

5.4 6000 Visibility Sensor –Tri-Annual Maintenance Verification and Calibration

Procedure .......................................................................................................... 18

5.5 Wind Speed Sensor Annual Verification Procedure......................................... 22

5.6 Wind Direction Sensor Annual Maintenance Verification............................... 23

5.7 Lightning Protection System, Battery & Tower Tri-Annual Maintenance....... 26

5.8 The UHF Transceiver Annual Maintenance..................................................... 27

5.9 The VHF Unicom Radio Annual Maintenance ................................................ 27

5.10 Belfort AWOS System Component Failure...................................................... 28

6.0 Troubleshooting the System ............................................................................. 29

6.1 System Built–In Diagnostics and Troubleshooting ......................................... 29

6.2 Interpreting Diagnostic Messages .................................................................... 31

6.2.1 System Status Indicators ................................................................................... 31

6.2.2 Interpreting Sensor Status And Data Quality Indicators .................................. 34

7.0 Tools and Test Equipment Required ................................................................. 41

8.0 Key System Performance Parameters and Expected Sensor Outputs............... 42

9.0 Maintenance Data Recording and Forms.......................................................... 42

9.1 Belfort AWOS Comprehensive Facility Performance Adjustment Data Form 42

9.2 Belfort AWOS Technical Performance Record................................................ 42

9.3 FAA Form 6030-1............................................................................................. 42

10.0 Component Removal and Replacement Procedures......................................... 43

10.1 DCP Removal Procedures................................................................................. 43

10.2 Temperature, Humidity/Dew Point Sensor Removal Procedures..................... 45

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BELFORT INSTRUMENT Proprietary Information

10.3 6000 Visibility Sensor Removal Procedures..................................................... 47

10.4 Wind Speed Sensor and Wind Cups Removal Instructions............................... 49

10.5 Wind Direction Sensor and Vane Removal Instructions.................................... 51

10.6 Power Supply Replacement Instructions............................................................ 53

10.7 Surge Suppressor Replacement Instructions...................................................... 54

11.0 Recommended Spare Parts................................................................................. 56

12.0 Customer Product Support and Website Assistance .......................................... 56

Tables

Table 1 Belfort AWOS Alert Messages........................................................................ 11

Table 2 Recommended Spare Components................................................................... 56

Table 3 Recommended Spare Hardware ....................................................................... 56

Figures & Illustrations

Figure 1 Typical Display Acquisition Terminal Unit Setup ........................................... 5

Figure 1a Advisor Main Screen ........................................................................................ 6

Figure 1b System Status Page........................................................................................... 7

Figure 2 Typical Belfort AWOS Tower Equipment Mounting Locations...................... 13

Figure 2a Securing the Tower for Maintenance................................................................ 14

Figure 3a Scatter Plate Attachment Detail........................................................................ 19

Figure 3b Tower with Visibility Scatter Plate Attached ................................................... 19

Figure 3c Installation of Opaque Filters on Transmitter Hood......................................... 20

Figure 4 Wind Direction Vane Alignment...................................................................... 24

Figure 5 Typical Battery Terminal Bruch....................................................................... 26

Figure 6 Belfort AWOS Alert Messages ........................................................................ 30

Figure 7 Advisor Current Status Page ............................................................................ 30

Figure 8 DCP Removal ................................................................................................... 44

Figure 9 Temperature/Humidity Sensor Removal .......................................................... 46

Figure 10 Visibility Sensor Removal................................................................................ 48

Figure 11 Wind Speed Sensor Removal............................................................................ 50

Figure 12 Wind Direction Sensor Removal...................................................................... 52

Figure 13 Power Supply and Surge Suppressor Mounting ............................................... 54

Appendix A Belfort AWOS Maintenance Forms

Appendix B Belfort AWOS Tri-Annual, Annual and Five-Year Maintenance Plan

Appendix C UHF Transceiver Specifications

Appendix D Standard Unicom Radio-ICOM A110 VHF Radio Specifications

Appendix E Belfort AWOS Commissioning / Annual Inspection Procedure & Data Record

Appendix F DCP Site Configuration Procedure

Appendix G Belfort AWOS Atomic Clock Verification Procedure

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BELFORT INSTRUMENT Proprietary Information

1.0 Introduction

1.1 PURPOSE –This manual has been prepared to thoroughly describe the maintenance

requirements to be followed by the owner and factory qualified technician to assure a long-term

successful usage of a Belfort AWOS system.

1.2 SCOPE –This manual has been developed in accordance with the guidance and

requirements described in FAA Advisory Circular, AC No: 150/5220-16D and other referenced

documents. This manual is intended to provide the owner and maintenance technician with proper

maintenance procedures applicable to all FAA approved Belfort AWOS configurations. Owners

and maintenance technicians are encouraged to contact the Belfort product support group at 1-800-

937-2353 regarding questions concerning the applicability of any specific maintenance procedure.

1.3 LEVEL OF MAINTENANCE –All levels of maintenance must be performed by a technician

that meets the requirements indicated in section 4.0 of this manual. Site/user maintenance is

characterized by routine preventive periodic maintenance, calibration adjustments and quick

turnaround replacement of defective or unreliable Lowest Replaceable Unit (LRU) assemblies.

Examples include completion of tri-annual performance, annual performance

validation/maintenance checks and removal and replacement of a failed sensor component. This

manual provides site maintenance personnel with instructions for completion and documentation

of routine performance and maintenance checks and tasks, instructions for adjustment of out of

tolerance sensors, troubleshooting procedures to identify defective components, and instructions

for the removal and replacement of defective system components.

1.4 PERIODIC MAINTENANCE –Equipment/system components that require periodic

maintenance and maintenance frequencies are identified in this manual. Forms to be used to

document completion of maintenance tasks, system calibration and adjustments are provided in

Appendix A of this manual. These forms can also be downloaded from the Belfort Instrument Co.

website, http://www.belfortinstrument.com. In addition to providing documentation of

maintenance actions completed, the Facility Performances and Adjustment Data Forms provided

are intended to be used as checklists to assure that all required routine maintenance tasks are

completed. Tri-annual preventive maintenance tasks must be completed in a timely manner to

assure system accuracy, optimum performance and reliability of the system.

1.5 WARRANTY –The entire Belfort AWOS TM system is provided with a one-year warranty.

The warranty period starts with the date of delivery from the factory. The entire system has been

manufactured and will perform in accordance with the requirements of the FAA AC 150/5220-

16D. The dual-pressure sensor and visibility sensor will perform as a certified instruments in

accordance with requirements of the FAA AC 150/5220-16D. Any defect in design, materials, or

workmanship which may occur during proper and normal use during a period of 1 year from date

of installation or a maximum of 2 years from date of shipment will be corrected by repair or

replacement by the manufacturer FOB Belfort. An extended warranty or and service contract may

have been purchased. Maintenance personnel should check with the system owner to determine if

an extended warranty or service contract is applicable to the system installed at their site.

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BELFORT INSTRUMENT Proprietary Information

1.6 WARRANTY SUPPORT –For warranty support, contact Belfort Instrument Co. customer

support at 1-800-937-2353. When calling, please have the Belfort AWOS TM location and serial

number available.

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BELFORT INSTRUMENT Proprietary Information

2.0 APPLICABLE DOCUMENTS &LIST OF ACRONYMS

2.1 APPLICABLE DOCUMENTS

This manual describes the periodic maintenance tasks to be performed on the Belfort Instrument

Co. AWOS system to comply with applicable sections of the following documents:

FAA AC No: 150/5220-16D Automated Weather Observing Systems (AWOS) For Non-

Federal Applications

FAA Order 6700.20 Non-Federal Navigational Aids and Air Traffic Control

Facilities

FAA Order 6560.13 Maintenance of Aviation Meteorological Systems and

Miscellaneous Aids

FAA Form 6030-1 Facility Maintenance Log

Belfort AWOS (VDD) Version located in Belfort AWOS site Maintenance Log

binder.

Description Document The VDD may also be located in the FRDF.

2.2 LIST OF ACRONYMS

Alternating Current

AVG

Average

ALS

Ambient Light Sensor

AWOS

Automated Weather Observing System

BIT

Built-In-Test

CTAF

Common Traffic Advisory Frequency

DATU

Data Acquisition Terminal Unit

Direct Current

DCP

Data Collection Processor

DDR

Digital Data Receiver

DMM

Digital Multi-meter

DSL

Digital Subscriber Line

DTMF

Dual-Tone Multi-Frequency

EEPROM

Electrically Erasable Programmable Read-Only Memory

FAA

Federal Aviation Administration

FBO

Facility Base Operator

FCC

Federal Communication Commission

FRDF

Facility Reference Data File

FRU

Field Replaceable Unit

FSDO

Flight Standards District Office

Mercury

HHDU

Hand Held Display Unit (Optional Maintenance Tool)

ICAO

International Civil Aviation Organization

Identification

INOP

Inoperative

Knots

LED

Light Emitting Diode

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BELFORT INSTRUMENT Proprietary Information

LRU

Lowest Replaceable Unit

MCIF

Microphone Click Interface

MHz

Megahertz (million Hertz)

MOU

Memorandum of Understanding

MSL

Mean Sea Level

NAVAID

Navigational Aid

NIST

National Institute of Standards and Technology

NOTAM

Notice To Airmen

OMM

Operations and Maintenance Manual

RAF

Regional Airway Facilities

REL HUM

Relative Humidity

RIF

Radio Interface

RPM

Revolutions Per Minute

T-carrier 1 (digital transmission line, 1.544 Mbps, 24 voice channels)

UHF

Ultra High Frequency

UNICOM

Universal Integrated Communications (System)

VAC

Volts Alternating Current

VDC

Volts Direct Current

VDD

Version Description Document (Belfort AWOS Configuration Baseline

Document)

VDU

Video Display Unit

VHF

Very High Frequency

Visibility Sensor

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BELFORT INSTRUMENT Proprietary Information

3.0 MAINTENANCE PROGRAM OVERVIEW

Belfort AWOS maintenance consists of preventive and corrective maintenance activities.

Preventive maintenance consists of tri-annual and annual maintenance tasks required to keep the

Belfort AWOS system in peak operational condition. Corrective maintenance utilizes the Built-

In Test (BIT) features of the Belfort AWOS software to identify system faults and minimize

troubleshooting activities. For sensor troubleshooting, removal instructions and procedures refer

to section 6.0 of this manual. Refer to the Belfort AWOS Installation and Checkout manual for

installation instructions and checkout of replaced sensors and components.

A suite of system diagnostic self-tests is continuously running and automatically outputs system

status to a history file every time sensor information is transmitted from the DCP. If the self-test

detects a problem, the suspected sensor or function is identified in the system status log with an

error flag.

When routine maintenance tasks and adjustments are not adequate to correct system errors or

problems, defective components must be replaced. Site maintenance personnel must not attempt

to repair defective system LRU components.

Figure 1

Typical Display Acquisition Terminal Unit setup

4.0 QUALIFICATION REQUIREMENTS FOR MAINTENANCE PERSONNEL –Installation and

maintenance of the Belfort AWOS system must be performed by qualified personnel. FAA

Order 6700.20A contains the qualification requirements for maintenance personnel who

maintain Non-Federal facilities. Installation and maintenance personnel must meet the

requirements of FAA Order 6700.20A and have the special knowledge and skills needed to

install and maintain a Belfort AWOS facility. These skills can be obtained by completing the

“Belfort AWOS Installation and Maintenance Training Program” course and successfully

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BELFORT INSTRUMENT Proprietary Information

passing the required FAA administered performance examination. The owner of the Belfort

AWOS system is responsible for assuring that only qualified personnel perform system

maintenance activities. Owners or maintenance technicians interested in scheduling this

Belfort training should contact the Belfort AWOS program manager at 1-800-937-2353 to

schedule this training.

5.0 PREVENTATIVE MAINTENANCE AND CALIBRATION PROCEDURES –Scheduled Belfort AWOS

calibration/verifications are performed tri-annually and annually as detailed in Appendix B.

Any defects observed or detected during these maintenance and calibration procedures and

tests must be described and recorded on the Facility Maintenance log, FAA Form 6030-1

and corrective actions initiated to resolve the issue as soon as possible.

As a standard practice, whenever maintenance personnel visit the outdoors Belfort AWOS site

location, regardless whether the visit is scheduled or unscheduled, a general walk-around

inspection of the Belfort AWOS tower and associated site grounds area must be performed. This

walk-around inspection should include the following observations at a minimum:

1) Visual inspection of the tower for obvious defects such as chipped paint, evidence of

corrosion on the tower or sensor enclosures or mounting structures, loose or broken hardware or

electrical connections, and any other unsafe conditions that could affect the reliability of the

system. Including an observation that the obstruction lighting is operational. Any defects

observed must be described and recorded on the Facility Maintenance log, FAA Form 6030-1 and

corrective actions initiated to resolve the issue as soon as possible.

2) A general inspection of the grounds area to assure that grounds maintenance is being

adequately performed and the area is neat and orderly.

3) The certified instruments Visibility Sensor and Altimeter must be verified as detailed

in Appendix B. The appropriate Belfort AWOS Maintenance Form from Appendix A must be

completed for each Maintenance event.

4) The non-certified instruments Wind Speed and Direction, Temperature and

Humidity/Dew-point Sensor must be verified as detailed in Appendix B. The appropriate Belfort

AWOS Maintenance Form from Appendix A must be completed for each Maintenance event.

The following scheduled preventive maintenance procedures must be completed at a minimum

for each of the LRU or system sensor assembly installed as identified in this section:

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5.1 DATU –DATA ACQUISITION TERMINAL UNIT MAINTENANCE

Any defects observed or detected during these tests must be described and recorded on the

Facility Maintenance log, FAA Form 6030-1.

5.1.1 DATU TRI-ANNUAL MAINTENANCE

1. Clean air filters with hand-held vacuum cleaner.

2. Clean cabinets with mild detergent and water (wring cloth dry).

3. Check the computer CPU Power Supply cooling fans to assure they are operating and listen

for any unusual noise such as; grinding or squealing, that would indicate the fan is not

functioning properly. The DATU computer is not a field repairable item. Therefore, if the fan

is not operating or is making unusual noise, contact Belfort to arrange for computer

replacement or factory repair.

3a. Check PC Clock for accurate time and Atomic Clock operation. If the time is not accurate,

then perform the Atomic clock verification procedure in Appendix G. Then reset the Windows

clock through the windows control panel to the correct time.

3b. Download and install any Windows Updates indicated by the Windows OS.

**The Belfort AWOS tower should be powered up with both AC and DC Circuit breakers

on. Some of the sensors take up to 5 minutes for their averaged values to be reported to the

DATU from the DCP.

4. The Belfort AWOS Tower transmits telemetry, system status, sensor status and data quality

status along with weather data. Advisor software captures the telemetry and displays it on the

Advisor Main screen. See Figure 1a below.

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