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AWOS Installation Checkout Manual

1. co 800 937 2353 www DIGIWX com DigiNx Automated Weather Observing System AWOS Installation and Checkout Manual Proprietary Prepared in Response to FAA Automated Weather Observing System AWOS Requirements June 2006 Section 1 0 1 1 1 2 2 0 2 1 2 2 3 0 4 0 4 1 4 2 4 3 4 4 4 5 5 0 6 0 6 1 6 2 6 2 1 6 2 2 6 2 3 6 3 6 4 7 0 7 1 72 T3 7 4 7 5 7 6 7 7 7 8 7 9 7 10 7 11 7 12 7 13 7 14 7 15 8 0 8 1 8 2 9 0 9 1 9 2 TABLE OF CONTENTS Description Introduction System Overview and Description Commissioning Process Overview Coordinating the installation With the FAA Establishing Site specific Operational Procedures Performance Test and Installation Checkout Facility Commissioning and Inspection Facility Reference Data File FRDF Documentation Qualifications for Installation amp Maintenance Personnel Selection of Site Location Safety Precautions Site Preparation amp Installation Options Tools Required for Site preparations Installation on Unpaved Ground
2. City Telephone 12 Nearest City 2 Sponsor s Representative if other than 1 13 Nearest Public use not private use or Military Airport or Heliport Attn of Name Address Distance from 13 to Structure Direction from 13 to Structure City Laam Zip Site Elevation AMSL Telephone Total Structure Height AGL 3 Notice of C New Construction Alteration Existing Overall height 16 17 AMSL 4 Duration C Permanent months days Previous FAA Aeronautical Study Number if applicable 5 Work Schedule Beginning End OE 6 Antenna Tower Crane Building Power Line 20 Description of Location Attach a USGS 7 5 minute L Landfill O Water Tank L Other Quadrangle Map with the precise site marked and any certified survey 7 Marking Painting and or Lighting Preferred Red Lights and Paint L Dual Red and Medium Intensity White White Medium Intensity L Dual Red and High Intensity White L White High Intensity L Other 8 FCC Antenna Structure Registration Number if applicable 21 Complete Description of Proposal Frequency Power kW Notice is required by 14 Code of Federal Regulations part 77 pursuant to 49 U S C Section 44718 Persons who knowingly and willingly violate the notice requirements of part 77 are subject to a civil penalty of 1 000 per day until the notice is r
3. e o TOWER TO SOLAR PANEL TO SOLAR PANEL SunSaver 6 SOLAR BATTERY z S M RED DO NOT USE Qo 1 BLACK BATTERY SOLAR CONTROLLER TO BATTERY TO SOLAR CONTROLLER BLACK BATTERY NO 2 RED TO POWER JUNCTION BOX DC CIRCUIT BREAKER INPUT TO SOLAR CONTROLLER BATTERY NO 1 BLACK TO TOWER HARNESS BLACK BATTERY BOX Figure 16 Connecting Solar Power 48 BELFORT instrument Proprietary Information 7 15 INSTALLING A C POWER WITH BATTERY BACKUP SV ON coups E SAFETY PRECAUTIONS Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position Do not perform DigiWx AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Phillips head screwdriver Slot head screwdriver Green ground wire 36 Item 32 Battery box Item 22 Back up battery Battery mounting straps Item 21 Battery Power Cable Item 31 INSTALLATION INSTRUCTIONS Locate the AC junction box and ensure that the power circuit breaker to this box is in the OPEN position Locate the AC power
4. 2X NYLON CLAMP FLAT WASHERS LOCK WASHERS SCREW PART OF ITEM 33 KIT SOCKET HD SCREW LOCK WASHER FLAT WASHER I i V 1 se E 2 m 2 FLAT HD SCREW D 4 G LOCK WASHER FLAT WASHER EYE BOLTS FLAT WASHERS LOCK WASHERS NUTS PART OF ITEM 33 KIT BIMETALLIC CONNECTOR Figure 5a Tilt Over Tower Assembly amp Installation Upper Portion BELFORT instrument Proprietary Information This page intentionally left blank 299 BELFORT instrument Proprietary Information 7 4 INSTALLING TOWER CHANNEL SECTION BALANCE WEIGHTS AND LIGHTNING ROD SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position 2 Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Tower channel section Item 7 Six 3 8 16 x hex head bolts and washers Item H5 P N 80027 Two 8 32 x flat head screws Item P N 80025 Nylon rope Item 26 Eye Strap Item 20 Balance weight mounting bolt nut and washers Item H6 P N 80028 Five 12 5 Ib Weights Item 25 Lightning Rod Kit Item 33 P N 80090 eo I ON INSTALLATION INS
5. 2 4 4 Fus soi LagBot 1 i al m sex Tag Bok 4 Extra Hardware for Solar Panel and Mounting Table 2 16 BELFORT instrument Proprietary Information 7 2 TOOLS REQUIRED FOR HARDWARE INSTALLATIONS tA gt Ut L Common hand tools 1 wrenches screwdrivers nut drivers Digital multi meter DMM Fluke 77 or equivalent Notebook computer with DB9 serial interface PROCOMM software PROCOMM Plus Datastorm Tech or equivalent Portable pressure standard Model 760 16B Paroscientific Inc Visibility sensor calibration kit 32041 Belfort Instrument Company Magnetic compass S amp Y 183 Stocker and Yale or equivalent Kestrel Model 3000 Wind Instrument with calibration kit 9 Scanner w AC Adapter Radio Shack PRO 36 273 1455 or equivalent 10 Wire brush Commercial 11 Scraper w razor blade Commercial 12 Gloves rubber Commercial 13 Techni Tool TECH DUSTER inert dusting gas or equivalent 14 Battery Terminal cleaning brush Sears P N 00947697000 or equivalent 15 Wooden tongue depressors to be used to remove debris from DCP pressure ports 17 BELFORT instrument Proprietary Information 7 3 TILT OVER TOWER ASSEMBLY amp INSTALLATION SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position Do not perform DigiWx AWOS insta
6. 20 Figure 6 Installing Tower Channel Section and Balance Weights 23 Figure 7 Installing Cross Arm Assembly eene nennen 25 Figure 8 Installing DCP Electronics Enclosure een 27 Figure 9 Installation of DCP Barometer Enclosure No Tower 29 Figure 10 Installing Wind Speed Sensor Saves eh 31 Figure 11 Installing Wind Direction Sensor eese eene eee 33 Figure 12 Temperature Dew Point 35 Figure 13 Visibility Sensor with Scatter Plate Installed 37 Figure 13a Visibility Sensor and 6 38 Figure14 Installing Solar Power 42 Figure15 Installing Battery Box Mounting Bracket 44 Figure 16 Connecting Solar POWOE op ap 46 Figure 17 Basic AC Wiring Power Wiring Schematic eee 48 Figure 17b Installing Commercial AC Power With Battery Back up 49 Figure 18 Typical DATU Setup ion eee eter tnter 52 Figure 19 Installing DigiWx Voice Modules tt medo e Ii ont 57 Figure20 Typical DigiWx Advisor Main 59 Figur
7. Installation on Flat Metal Paved or Wood Surface Installation of True North Monument Lightning Protection and Grounding Requirements Hardware Installations Parts a Tools Required for Tower Installations Tilt Over Tower Assembly and Installation Installing Tower Channel Section Balance Weights and Lightning Rod Installing Cross Arm Assembly Installing DCP and Barometer Enclosure Installing DCP and Barometer Enclosure no Tower Configuration Installing Wind Speed Sensor Installing Wind Direction Sensor Installing Temperature Dew Point Sensor Installing Belfort Model 6000 Visibility Sensor Installing Solar Power Kit Installing Battery Box Mounting Bracket Connecting Solar Power with Battery Back up Installing A C Power with Battery back up Data Acquisition and Terminal Unit DA TU Installation Installing DigiWx Phone Installing DigiWx System Checkout and Verifications Tools amp Test Equipment Required for System Checko
8. INSTALLATION INSTRUCTIONS Note Installation of the DCP requires prior installation of the static pressure port vents onto the tower 1 Locate the static pressure ports with brackets and hoses 2 Align bolt holes in the mounting brackets with the drilled and tapped holes on the sides of the tilt over tower as shown in Figure 5 3 Secure the vents to the tilt over tower using four 4 bolts and washers Item H2 P N 80023 provided 4 Slip one end of each 4 diameter hose over the barbed fitting on the bottom of the vent See Figure 5 5 Insert the other end of each hose through the grommet holes into the interior of the tower and feed them up and out through the DCP cutout Form a drip loop in each hose to retard moisture entry into the tower 6 Locate the DCP enclosure and connect the following to the receptacles on the back of the enclosure as shown in Figure 8 the antenna cable power cable 9 pin communication cable and sensor harness from the cut out in the upper half of the hinged tower section Connect both of the 14 hoses from the static pressure vents to the bulkhead barbed fittings located on the back of the DCP below the antenna connector It does not matter which hose attaches to which fitting If there are no additional sensors fold and store the sensor harness in the tower above the DCP access cutout NOTE of the connectors and their respective receptacles are keyed 27 BELFORT instrument Proprietary
9. Data Comm Cable Item 35 P N 80091 Qv Uso Es INSTALLATION INSTRUCTIONS Mount the two DCP mounting brackets to the DCP using the four pan head screws Mount the antenna to the upper bracket in the cutout provided 3 Connect the antenna cable and power cable to the receptacles on the back of the enclosure as shown in Figure 8 NOTE All of the connectors and their respective receptacles are keyed 4 The DCP enclosure should be installed in a convenient location on the building exterior wall approximately 12 feet above ground level facing East or at a level to assure clearance above any possible accumulation of snow as shown in Figure 9 5 Route the Data Comm Cable and Power Harness down the wall and secure every two 2 feet with the wire clips 6 See Section 7 15 and Figure 19 for detailed installation of AC power and battery backup that are illustrated in Figure 9 N 29 BELFORT instrument Proprietary Information sd 2X PRESSURE PORT 2X BRACKET 1 nN ELECTRONIC M ENCLOSURE 4X 144 00 AC POWER JUNCTION BOX BATTERY PACK Figure 9 Installation of DCP and Barometer Enclosure no tower configuration 30 BELFORT instrument Proprietary Information 7 8 INSTALLING WIND SPEED SENSOR SAFETY PRECAUTIONS Before starting any power installation tasks ensure that the A C power circuit breaker is in the open posi
10. 5 of this section with its longest runway no more than 3 200 feet in actual length excluding heliports 25 to for a horizontal distance of 5 000 feet from the nearest point of the nearest landing and takeoff area of each heliport specified in paragraph a 5 of this section 3 Any highway railroad or other traverse way for mobile objects of a height which if adjusted upward 17 feet for an Interstate Highway that is part of the National System of Military and Interstate Highways where overcrossings are designed for a minimum of 17 feet vertical distance 15 feet for any other public roadway 10 feet or the height of the highest mobile object that would normally traverse the road whichever is greater for a private road 23 feet for a railroad and for a waterway or any other traverse way not previously mentioned an amount equal to the height of the highest mobile object that would normally traverse it would exceed a standard of paragraph a 1 or 2 of this section 4 When requested by the FAA any construction or alteration that would be in an instrument approach area defined in the FAA standards governing instrument approach procedures and available information indicates it might exceed a standard of Subpart C of this part 5 Any construction or alteration on any of the following airports including heliports 1 An airport that is available for public use and is listed the Airport Directory of the current
11. 1 Fig 12 14 Temperature Humidity Sensor 1 Fig 12 Antenna Fig 5 Fig 5 Fig 5 Fig 5 Fig 10 amp Fig 11 Fig 5 Fig 15 Fig 16 Fig 14 i Weights Fig 5 Fig 6 ZX4491K42 Cap Plug Red 6 Figl0 amp Figll ZXS56 Solar Controller Fig 16 Fig 17 ZXA8R84 Junction Box and circuit 1 Fig 17 breaker 3 32 m NO 2 2 2 2 2 2 2 2 2 2 gt 0 1 2 3 4 5 6 7 8 9 1 Fig 17 Figs 6 amp 17 Fig 5a Fig 13 80091 Data Comm Cable 80087 DCP Mounting Kit Fig 13 Fig 17 41 SFL612100 Power Supply 1 Fig 17 l 15 BELFORT instrument Proprietary Information Fig 9 Fig 13 Fig 13 1 2 1 1 1 2 1 1 1 1 1 Ti T Ld N 09 43 8040 DDR amp PowrSupl 1 8819 KOT He Cone Cube a 45 180039 or 80109 Obstruction Light and wiring Fig 5a harness kit 48 80110 Base Transceiver 1 Fg MCIF HARDWARE PACKAGE KIT PART NUMBER 80033 p ws m mon Mas 6 6 HeHedBoti2a 80025 Head Sorew 33x 2 H4 eoo Pan Head Serow Rare 4 4 4 Hus 80027 Hex Head Bok 6 6 6 me soos exHead Bok 38 16x6 1 3 2 2 sos
12. Item 6 Four 4 cross arm mounting bracket bolts and lock washers Item H2 P N 80023 Socket wrench and 34 socket INSTALLATION INSTRUCTIONS Remove tower securing bolts and pull the tower down to the point where the top ofthe tower is at a comfortable working height and secure it in that position by tying the nylon rope around the aluminum channel P N 80021 post Untangle the wind sensor cables from the wiring harness in the upper section of the tilt over tower and locate the markers on the cable ends that identify them for the wind direction and wind speed sensors respectively Locate the cross arm assembly Route the radio antenna cable out through the cross arm and the cross arm adapter bracket Route the antenna cable through the upper section of the hinged section and out through the cutout for the electronics enclosure Route the obstruction light power cable out through the tower hole and install the protective rubber grommet Route the two sensor cables through the cross arm adapter bracket and out the ends of the cross arm The wind direction cable must be routed out the right side of the cross arm and the wind speed sensor cable is routed to the left as viewed from the sensor side top of the cross arm Using two 2 of the bolts and washers provided Item H2 P N 80023 mount the cross arm to the upper half of the hinged tower section as shown in Figure 3 Using the other two 2 bolts and washers secure the obstru
13. e SENSOR 2 CAP PLUG 3 PLACES g UA SOCKET HD SCREW LOCK WASHER 7 FLAT WASHER 2 7 3 PLACES lt END Figure 10 Installing Wind Speed Sensor 2495 BELFORT instrument Proprietary Information 7 9 INSTALLING WIND DIRECTION SENSOR SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly Dp PARTS AND TOOLS REQUIRED Wind direction sensor Item 10 Three 3 M4 x 8 Socket head screws Item H1 P N 80022 3 mm Allen wrench End Cap Item 19 P N ZX1324U2 Three 3 hole plugs Item 27 PN ZX4491K42 uices pr INSTALLATION INSTRUCTIONS 1 Locate the wind direction sensor Item10 that has the wind vane already attached to the shaft NOTE The wind direction vane has been aligned at the factory such that it will indicate a direction of 360 when it 1s aligned with the red pointer mounted on the sensor body DO NOT REMOVE THE WIND DIRECTION VANE FROM THE SHAFT OR THE POINTER FROM THE BODY Remove the three 3 screws installed in the bottom of the sensor and discard Remove the knurled protective collar from the sensor connector
14. A Coordinates To hundredths of seconds if known B Location City State include street Latitude Longitude Address if any C Construction Heights Total Height Structure amp Site Above Mean Sea Level Site Elevation Ft AMSL Structure Height Ft AGL Ft AMSL D Site Elevation Determined By Reference datum of coordinates F Name of Nearest Public Use or Military Airport D Actual Survey NAD 27 Include Distance and Direction from the Airport L USGS 7 5 Quad Chart NAD 83 Other Specify O Other Specify 3 Construction Notifications A Notification B Construction Project Notice is Critical to Flight Safety FAR Part 77 Required 1 Construction will start Submit at least 48 hrs in advance 1 Project Abandoned 2 Estimated Completion 3 Structure Reached Greatest Height 2 Construction Dismantled Submit within 5 days 4 Marking and Lighting A Marked B Lighted Medium Intensity White High Intensity White Yes 0 Temporary Dual Medium Intensity L Dual High Intensity White amp Red White amp Red 5 Antenna Requiring FCC License A Call Sign B Frequency C Date Applied for FCC Construction Permit D Date Construction Permit Issued 6 Preparer s Certification A Proponent s Representative A Construction Proponent Name Name Address Address Include Area Code Include Area Code I hereby certify that the information provided is true complete and
15. Bracket 45 BELFORT instrument Proprietary Information 46 BELFORT instrument Proprietary Information 7 14 CONNECTING SOLAR POWER WITH BATTERY BACK UP Note Each solar power kit and configuration will be sized for the specific location and historical weather conditions The following is a generic installation guideline Ne SAFETY PRECAUTIONS Remove the in line fuse from the red lead in the tower power harness See Figure 18 Do not perform DigiWx AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Slot head and Phillips screwdriver Deep Discharge 100 amp hour flooded cell group 27 battery procured locally Battery Box Item 22 Solar Charge Controller Item 28 Battery Power Cable Item 31 INSTALLATION INSTRUCTIONS Unpack the battery and position it near the base of the tilt over tower The solar power controller is shipped with a jumper installed This sets the controller for charging SEALED batteries any battery that cannot have distilled water added If a FLOODED battery any battery that is capable of having distilled water added is being used simply remove the jumper to optimize the battery charging circuit for a FLOODED battery Attach the solar power panel cable to the Solar term
16. If this does not result in the display showing the start message with model and version number contact Belfort Instrument Co customer support at 1 800 937 2353 Hold down ctrl key and type the letter then type the word foggy in lower case letters when prompted for the password Type FT then press lt enter gt to run diagnostics if the first 2 characters are FP sensor is FF indicates a failure and further diagnostics are necessary see troubleshooting section of this manual Type FJ to start streaming data Check the state of calibration first Allow the measured visibility to settle for 5 minutes If the ExtCo the number in the last numerical column on the right is within 5 of the value marked on the scatter plate no recalibration is required If recalibration is needed proceed to the next step The zero state calibration must be done first Place the opaque filters the triangle shaped pieces of rubber on the receiver and transmitter hoods as close to the glass windows as possible The filters are 5 8 thick rubber triangular in shape with ears that hook over the transmitter and receiver hoods to secure them in place They may be attached easily near the mid point of the hood and slid back to the window as shown in Figure 26 Figure 26 Installation of Opaque Filters on Transmitter and Receiver Hoods Type FZ then press lt enter gt on the terminal Answer Y when prompted are y
17. SITE PREPARATION AND INSTALLATION OPTIONS The following installation instructions apply to tower mounted systems 6 2 1 TOOLS REQUIRED FOR SITE PREPARATIONS Power drill and gt drill bit Socket wrench set including 13 16 34 5 16 and 3 8 sockets Carpenter s level 2 Phillips head screwdriver Allen Wrench 3 mm supplied with Hardware Kit Allen Wrench 3 16 1 4 Straight slot head screwdriver Hand Bearing Compass Lensatic 8 Step Ladder 1 1 16 1 1 8 hole saw with pilot drill Laptop computer with communication RS232 interface 6 2 2 INSTALLATION ON UNPAVED GROUND The DigiWx AWOS can be easily installed on unpaved ground Site preparation consists of burying an 8 foot aluminum mounting channel P N 80021 to a depth of 4 feet below ground level 1 Dig or auger a hole at least 4 feet in depth and 12 inches in diameter NOTE If the local frost depth is 4 feet or greater the depth of the hole should be at least 6 inches below the frost depth and the aluminum channel appropriately longer to assure 4 feet extension above ground level 2 Place the 8 foot aluminum channel in the hole and align a 6 side to face true north as described below 3 With the aluminum channel P N 80021 standing in the hole place the magnetic compass on the end aligned with the north facing edge of the aluminum channel P N 80021 and rotate the aluminum channel P N 80021 until the compass indicates true north takin
18. a well ventilated area PARTS AND TOOLS REQUIRED Parts already specified for DATA ACQUISITION AND TERMINAL UNIT INSTALLATION Customer supplied local telephone line Phillips head screwdriver small flat head screwdriver INSTALLATION INSTRUCTIONS NOTE PC will be factory configured for each specific airport Insure that DigiWx Advisor is already up and running on factory configured PC Plug in dedicated local phone line to modem telephone jack labeled Line Using the telephone number supplied by the customer test the functionality of DigiWx Phone by calling the dial in weather number 55 BELFORT instrument Proprietary Information This page intentionally left blank 56 BELFORT instrument Proprietary Information 8 2 DV RG BS N oos 11 12 INSTALLING DIGIWX VoICE SAFETY PRECAUTIONS Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx M AWOS installation tasks during a thunderstorm Insure that the RIF and VHF base station are installed in a well ventilated area PARTS AND TOOLS REQUIRED Parts already specified for DATA ACQUISITION AND TERMINAL UNIT INSTALLATION Radio Interface module RIF and power supply Item 45 Microphone Click Interface module MCIF Item 51 Two 9 pin male female 6 serial cables Two 6 shielded audio cables 1 4 stereo plug to 1 8 stereo mini plug Belfort recommended base station in
19. correct to the best of my knowledge LONGUES Notice is required by 14 Code of Federal Regulations part 77 pursuant to 49 U S C Section 44718 Persons who knowingly and willingly violate the notice requirements of part 77 are subject to a civil penalty of 1 000 per day until the notice is received pursuant to 49 U S C Section 46301 a FAA Form 7460 2 7 98 SUPERCEDES PREVIOUS EDITION ADVANCE NOTICE OF CONSTRUCTION Part 1 SUBMIT WITHOUT DELAY proponent s representative please Submitted By If submitted by a also complete item B This page intentionally left blank
20. excellent working condition Phillips head screwdriver small flat head screwdriver INSTALLATION INSTRUCTIONS NOTE DigiWx Voice requires the pre purchase of DigiWx Advisor Insure that DigiWx Advisor is already up and running on factory configured PC Unpack and setup Radio Interface RIF module Microphone Click Interface module MCIF and VHF base station Locate 6 shielded audio cable 74 stereo plug to 1 8 stereo mini plug and connect the 1 4 stereo plug to Line In on the back of the RIF PC side Connect the remaining 1 8 stereo mini plug to Line In colored blue on the back of the PC Locate 6 shielded audio cable 74 stereo plug to 1 8 stereo mini plug and connect the 1 4 stereo plug to Line Out on the back ofthe RIF PC side Connect the remaining 1 8 stereo mini plug to Line Out colored green on the back ofthe PC Locate 9 pin male female 6 serial cable and connect the 9 pin male to the 9 pin female located on the side of the VHF base station Connect 9 pin female end of cable to 9 pin male located on the end of the MCIF Locate 9 pin male female 6 serial cable and connect the 9 pin male to the 9 pin female located on the end of the MCIF Connect the 9 pin female other end to the 9 pin male on the end of the USB to Serial Adapter Plug USB Serial Adapter into USB port on PC Power up RIF and VHF base station Ensure DDR is powered up then double click the desktop DigiWx Voice icon Data is Current shoul
21. expected Reconnect the positive lead to the backup battery if present Untie the rope and SLOWLY erect the tower to the vertical position and secure it by installing and tightening DO NOT OVER TIGHTEN the three 3 tower securing bolts NOTE Be careful to avoid pinching the wires on the inside of the hinged Tower Section when raising the tower If all maintenance tasks are complete issue another NOTAM advising users that maintenance activities were completed system has been returned to normal operation The expiration date and time of this NOTAM should coincide with the same expiration date and time of the previous advisory that was issued to put the system in the maintenance mode Verify that this NOTAM advisory is correctly displayed on the operator screen Refer to DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 for instructions on how to enter and delete NOTAMs 67 BELFORT instrument Proprietary Information 9 4 N TEMPERATURE HUMIDITY AND DEW POINT INSTALLATION VERIFICATION PROCEDURES SAFETY PRECAUTIONS Do not perform DigiWx AWOS maintenance tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Kestrel Model 3000 Wind Instrument 2 DigiWx AWOS hand held display The Temperature a
22. for a password Enter the site password the password is case sensitive Next hold the CTRL key down and type V then enter the 5 digit target pressure from the portable pressure standard Example 30 235 and press enter The automatic calibration routine will make any required adjustments to the pressure sensor parameters At the end of the routine press the esc key to return to the main configuration menu Verify that the pressure sensors are calibrated by repeating step 10 If the sensors still differ from each other or the standard by more than 02 in Hg repeat step 11 Type c and enter the new date of calibration then type cr Press the key This will cause the data to be saved in the EEPROM Exit ASOSDCP102 by typing x then press lt enter gt Disconnect the RS232 cable from the notebook computer and reconnect the RS232 data communication cable to the visibility sensor if present Apply Dow Corning 74 liberally to the connection to protect against moisture Remove and reapply power to the DCP to restore normal operation 66 BELFORT instrument Proprietary Information 17 18 19 20 21 If additional installation verification tasks are to be performed skip to next sensor verification task If verification tasks are complete toggle the ALERT MESSAGE switch 4 times to return the unit to service Observe system output and verify that the system is reporting data as
23. humidity barometric pressure and visibility sensors mounted on a rugged aluminum tilt over tower Sensor readings are monitored and processed by a digital processor located in the DCP enclosure The processor uses sensor data to calculate the prevailing and gust wind components for pre programmed runway headings The DigiWx AWOS also calculates the altimeter setting density altitude condensation altitude and dew point All of this information plus the speed and direction of both prevailing wind and wind gusts current surface temperature and visibility are broadcast on UHF 464 MHz by a FCC licensed transceiver located in the DCP enclosure The system reports weather conditions to pilots in the air through DigiWx AWOS Hand Held Display Unit HHDU The pilot receives this information at ranges up to 10 miles from the airport In order to get the weather information the pilot only has to power up the hand held display and select the runway heading that he she will use In addition to alphanumeric readouts of the various weather parameters the hand held unit provides a graphical representation of the selected runway with the head tail and or cross wind components displayed thereon Through DigiWx Advisor and a Digital Data Receiver DDR the weather information and any NOTAMS can be communicated to users by Pilot Activated Unicom or an Endless Loop Dedicated Frequency ELDF on a dedicated VHF frequency An internet option and dial up voice
24. not use current weather data outputs Verify that this NOTAM advisory is displayed on the operator screen prior to beginning this maintenance tasks Instructions for issuing and deleting NOTAMs are provided in the DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 2 At the tower toggle the ALERT MESSAGE toggle switch located on the lower half of the hinged tower section refer to figure 2 a six 6 times See Table 3 DigiWx Alert Messages 1 Contact FBO for an important message 2 Wind speed sensor INOP 3 Wind direction sensor INOP 4 Temperature and or humidity sensor INOP Table 3 63 BELFORT instrument Proprietary Information Remove tower securing bolts and lower the tower until the DCP is at a comfortable working height so that the portable pressure standard on an upper step of the ladder 15 at the same height as the DCP Secure the tower in that position by tying the to the base of the DigiWx tower Figure 20 illustrates the height locations where the various DigiWx sensors and other system components are located on the tower Figure 22 illustrates the tower as typically secured for maintenance 1 D Wx 19 AMBIENT LIGHT 3 8 X 5 BOLT 4 REQD T SENSOR WASHER FLAT 8 REQD WASHER LOCK 4 REQD EL NUT 4 REQD 13 8 VISIBILITY SENSOR 18 8 19 zd SCATTER PLATE T
25. performance 1 The DigiWx AWOS tower is 15 feet tall an illustration of the DigiWx tower is shown in Figure 2 Therefore the unit should be located far enough away from runways and taxiways to provide adequate clearance for aircraft landings take offs or while aircraft are taxiing in the vicinity of the DigiWx AWOS tower 2 Ifthe tower is to be supplied with commercial electric power it should be located as close to the power source as possible and the power service should be installed by the site contractor to be within three 3 feet of the base of the DigiWx tower Junction box will be provided by Belfort Trenching for power service should comply with NEMA codes and all local electrical codes or ordnances that may apply 3 In order to obtain accurate wind speed and direction measurements the DigiWx AWOS should not be located close to buildings trees or other obstructions Best operational performance will be obtained if there are no obstructions within 500 feet of the DigiWx 9 BELFORT instrument Proprietary Information 6 1 SAFETY PRECAUTIONS 1 Do not perform any DigiWx AWOS site preparation operations during inclement weather particularly during electrical storms 2 Always contact the local agency capable of identifying the location of underground utilities prior of commencing any excavation operations 3 Have all A C power installations and connections performed by a fully qualified electrician 6 2
26. questions concerning these maintenance or calibration tasks contact Belfort Instrument Co customer support at 1 800 937 2353 2725 BELFORT instrument Proprietary Information 9 6 WIND DIRECTION SENSOR INSTALLATION VERIFICATION This maintenance includes checking the sensor for free rotation and balance and verification of sensor directional alignment and accuracy Bo pep SAFETY PRECAUTIONS Before starting any power installation Maintenance tasks ensure that A C power circuit breaker is in the open position Do not perform DigiWx amp AWOS maintenance tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED DigiWx AWOS hand held display unit HHDU 3 mm Allen wrench Socket wrench and 13 16 socket Large rubber band VERIFICATION INSTRUCTIONS At the DATU display terminal issue a NOTAM advisory to alert users that the DigiWx system is being serviced prior to beginning this maintenance tasks The NOTAM to be issued is DigiWx system being serviced do not use current weather data outputs Verify that this NOTAM advisory is displayed on the operator screen prior to beginning this maintenance tasks Refer to the DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 for instructions on how to enter and delete NOTAMs Put
27. the following dates 1 The date the proposed construction or alteration is to begin 2 The date an application for a construction permit is to be filed However a notice relating to proposed construction or alteration that is subject to the licensing requirements of the Federal Communications Act may be sent to the FAA at the same time the application for construction is filed with the Federal Communications Commission or at any time before that filing e A proposed structure or an alteration to an existing structure that exceeds 2 000 feet in height above the ground will be presumed to be a hazard to air navigation and to result in an inefficient utilization of airspace and the applicant has the burden of overcoming that presumption Each notice submitted under the pertinent provisions of this part 77 proposing a structure in excess of 2 000 feet above ground or an alteration that will make an existing structure exceed that height must contain a detailed showing directed to meeting this burden Only in exceptional cases where the FAA concludes that a clear and compelling showing has been made that it would not result in an inefficient utilization of the airspace and would not result in a hazard to air navigation will a determination of no hazard be issued d In the case of an emergency involving essential public services public health or public safety that requires immediate construction or alteration the 30 day requirement in paragra
28. will be up ITEM 5 Enter the date that construction is expected to start and the date that construction should be completed ITEM 6 Please indicate the type of structure DO NOT LEAVE BLANK ITEM 7 In the event that obstruction marking and lighting is required please indicate type desired If no preference check other and indicate no preference DO NOT LEAVE BLANK NOTE High intensity lighting shall be used only for structures over 500 AGL In the absence of high intensity lighting for structures over 500 AGL marking is also required ITEM 8 If this is an existing tower that has been registered with the FCC enter the FCC Antenna Structure Registration number here ITEM 9 and 10 Latitude and longitude must be geographic coordinates accurate to within the nearest second or to the nearest hundredth of a second if known Latitude and longitude derived solely from a hand held GPS instrument is NOT acceptable A hand held GPS is only accurate to within 100 meters 328 feet 95 per cent of the time This data when plotted should match the site depiction submitted under ITEM 20 ITEM 11 NAD 83 is preferred however latitude longitude may be submitted in NAD 27 Also in some geographic areas where NAD 27 and NAD 83 are not available other datums may be used It is important to know which datum is used DO NOT LEAVE BLANK ITEM 12 Enter the name of the nearest city state to the site If the structure is or will be in a city enter th
29. 37 52 VISIBILITY iE rm SENSOR FLAT WASHER LOCK WASHER FLAT WASHER LOCK WASHER ALL THREAD Figure 13a Visibility Sensor and ALS 39 BELFORT instrument Proprietary Information INSTALLATION INSTRUCTIONS Note The following instructions assume the visibility sensor will be installed on an existing DigiWx tower Unpack the Visibility Sensor and mounting hardware Check contents against the parts list to assure there are no missing components Carefully attach the visibility sensor Item 37 to the upper DigiWx tower section approximately 14 inches above the hinge point just above the channel using the mounting plate and mounting hardware Mount the ALS on the top Northern most bolt of the mounting plate on the back side from the VS pointing in a Northerly direction Center the bubble on the ALS bubble level to set the proper elevation angle Wire tie the ALS cable and the VS power and communications cables to the cross arm forming drip loops at the enclosure entrance points See Figure 13a Load the three 12 Ib weights on the new channel and secure Carefully return the tower to the upright position and secure with all three 3 8 16 x 1 bolts and washers Facing the Visibility Sensor route the sensor wire bundle down the hinge side of the tower securing every 24 inches with conduit clamps and self tapping screws using the predrilled holes At the base of the tower connect the red
30. AKER TQ TOWER GND GREEN TOWER HARNESS BLACK POWER JUNCTION BOX SOLA Power Supply SFL6 12 100 a DC CIRCUIT BREAKER Figure 17b Installing Commercial AC Power With Battery Back up 12 After wiring inspections are complete replace the cover on the junction box and close the power breaker to this box 51 BELFORT instrument Proprietary Information This page intentionally left blank 52 BELFORT instrument Proprietary Information 8 0 DATA ACQUISITION AND TERMINAL UNIT INSTALLATION SAFETY PRECAUTIONS 1 Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Insure that the desktop computer is installed in a well ventilated area PARTS AND TOOLS REQUIRED 1 Desktop computer and Monitor Factory configured with software installed Item 5 2 Digital Data Receiver DDR and power supply Item 43 3 9 pin male female 6 serial cable Item 44 4 DigiWx Handheld Receiver HHDU Item 2 5 Customer supplied T1 DSL local telephone line for internet uploads option 6 Phillips head screwdriver small flat head screwdriver INSTALLATION INSTRUCTIONS NOTE PC will be factory configured for each specific airport 1 Unpack and setup the factory configured DigiWx Advisor desktop computer and monitor 2 Unpack and setup DDR with 3 rubber antenna installed 3 Connect D
31. Airman s Information Manual or in either the Alaska or Pacific Airman s Guide and Chart Supplement ii An airport under construction that is the subject of a notice or proposal on file with the Federal Aviation Administration and except for military airports is clearly indicated that that airport will be available for public use 1 An airport that is operated by an armed force of the United States b Each sponsor who proposes construction or alteration that is the subject of a notice under paragraph a of this section and is advised by an FAA regional office that a supplemental notice is required shall submit that notice on a prescribed form to be received by the FAA regional office at least 48 hours before the start of construction or alteration c Each sponsor who undertakes construction or alteration that is the subject of a notice under paragraph a of this section shall within 5 days after that construction or alteration reaches its greatest height submit a supplemental notice on a prescribed form to the FAA regional office having jurisdiction over the region involved if 1 The construction or alteration is more than 200 feet above the surface level of its site or 2 An FAA regional office advises him that submission of the form is required 77 15 Construction or alteration not requiring notice No person is required to notify the Administrator for any of the following construction or alteration a Any object that
32. BELFORT MODEL 6000 VISIBILITY SENSOR E p or SO geo Jom Uo SAFETY PRECAUTIONS Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx M AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED See Figure 13 Visibility Sensor Assembly PN 90000 3 Item 37 12VDC Version One 110 240 VAC to 12 VDC 6 amp power supply P N SFL612100 Item 41 Visibility Sensor mounting plate rubber pads and 4 each 3 8 16 X 5 bolts nuts locks and flats P N 80097 8 foot step ladder Socket wrench with 9 16 socket Cordless drill and 1 8 drill bit 3 each 1 2 conduit clamps 6 each 1 8 x 5 8 self tapping screws and washers each DB9 Null Modem adapter a BELFORT instrument Proprietary Information OBSTRUCTION LIGHT DIG Wx AMBIENT LIGHT 3 8 X 5 BOLT 4 REQD SENSOR WASHER FLAT 8 REQD WASHER LOCK 4 REQD 37 NUT 4 REQD MTG PLATE VISIBILITY SENSOR SCATTER PLATE U ASSEMBLY TOGGLE SWITCH Figure 13 Visibility Sensor with Scatter Plate Installed 38 BELFORT instrument Proprietary Information NUT FLAT WASHER LOCK WASHER lt FLAT WASHER
33. DR to desktop computer COMI port using 6 serial cable 4 Place DDR at least three 3 feet from the PC to maximize DDR sensitivity 5 Power up both the PC and DDR 6 Power up HHDU and insure that current weather data is being received from the DigiWx tower 7 Open HyperTerminal session Start gt All Programs Accessories Communications Hyper Terminal gt RS 232 to insure weather data is streaming from DDR 8 Close HyperTerminal session and then double click the desktop DigiWx FBO icon current weather data should be displayed locally on PC 9 Ifthe local weather data will be uploaded to the internet a plug in T1 DSL line to NIC card or b plug in dedicated local phone line to modem telephone jack labeled Line Once the PC is connected to the internet real time weather data will be automatically uploaded to a Belfort maintained URL if this option was also purchased Otherwise the end user will need to set up and maintain their own URL 253 BELFORT instrument Proprietary Information o COMPUTER WITH MONITOR DDR 7 Figure 18 Typical DATU Setup 54 BELFORT instrument Proprietary Information 8 1 INSTALLING DIGIWX PHONE SAFETY PRECAUTIONS Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx M AWOS installation tasks during a thunderstorm Insure that the desktop computer is installed in
34. Information 7 Secure the enclosure to the tower with four 4 Pan head screws lock washers and flat washers provided Item H4 P N 80026 SOCKET HD SCREW LOCK WASHER dem FLAT WASHER BOLT LOCK WASHER 2 OSS FLAT WASHER k SM X fy 28 PANHDSCREW 5 g ME p LOCK WASHER LOCK WASHER my gt lt 1 7 FLAT WASHER FLAT WASHER WIRE EYE BOLTS FLAT WASHERS LOCK WASHERS NUTS PART OF ITEM 33 KIT BIMETALLIC CONNECTOR PRESSURE PORT TUBING FLAT HD SCREW 2 BOLT Y NYLON CLAMP LOCK WASHER M FLAT WASHERS FLAT WASHER LOCK WASHERS SCREW PART OF ITEM 33 KIT Figure 8 Installing DCP Electronics Enclosure 28 BELFORT instrument Proprietary Information 7 7 INSTALLING DCP AND BAROMETER ENCLOSURE NO TOWER CONFIGURATION SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the power circuit breaker is in the open position 2 Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Electronics enclosure Item 8 Two DCP mounting brackets and power harness Item 36 P N 80097 Four 8 32 x 2 Pan head screws Item H4 P N 80026 Phillips head screwdriver Wire clips procured locally to suit use
35. NE LINE TO SERIAL PORT TO DC OUT MONO PLUG wee TO LINE OUT TO MIC IN TO PHONE OUT TO SERIAL PORT Figure 19 Installing DigiWx Voice Modules 59 BELFORT instrument Proprietary Information 90 SYSTEM CHECKOUT AND VERIFICATIONS After hardware installations have been completed the following installation checkout verifications must be completed to verify the system is working properly and reporting data accurately 9 1 TOOLS AND TEST EQUIPMENT REQUIRED FOR SYSTEM CHECKOUT 1 Common hand tools 1 e wrenches screwdrivers nut drivers 2 Digital multi meter DMM Fluke 77 or equivalent calibrated and traceable to NIST 3 Notebook computer with DB9 serial interface 4 PROCOMM software PROCOMM Plus Datastorm Tech or equivalent 5 Portable pressure standard Model 760 16B Paroscientific Inc calibrated and traceable to NIST 6 Visibility sensor calibration kit 32041 Belfort Instrument Company 7 Magnetic compass S amp Y 183 Stocker and Yale or equivalent 8 Kestrel Model 3000 Wind Instrument with calibration kit 9 Scanner w AC Adapter Radio Shack PRO 36 273 1455 or equivalent 10 Wire brush Commercial 11 Scraper w razor blade Commercial 12 Gloves rubber Commercial 13 Techni Tool TECH DUSTER inert dusting gas or equivalent 14 Battery Terminal cleaning brush Sears P N 00947697000 or equivalent 15 Wooden tongue depressors to be used to remove debris from DCP
36. S installation To facilitate successful completion of the commissioning owners should have the following documents and items readily available during the inspection The FAA agreed to Memorandum of Understanding MOU A copy of the FAA Type Approval letter sent to Belfort Instrument granting approval of DigiWx AWOS system design copy of the documentation from the FCC assigning the approved operating frequencies if applicable The site specific operations and maintenance manual OMM which have been agreed to by the FAA All test equipment required for maintenance and needed to measure all applicable system performance parameters All test equipment must be calibrated and show evidence of current calibration traceable to national standards 8 BELFORT instrument Proprietary Information 4 5 FACILITY REFERENCE DATA FILE FRDF DOCUMENTATION The FRDF file should contain all of the documentation identified in Section 12 of FAA circular AC 150 5220 16C Copy of FAA Type approval letter for the DigiWx system being installed Frequency Allocation Approval from the FCC Copy of this Installation and Checkout Manual Copy of the Belfort DigiWx Maintenance Manual and System description manual of the site specific Operational Maintenance Manual OMM Initial commissioning documentation of facility performance and adjustment data to include measured performance data and respective standard or reference
37. TRUCTIONS 1 Locate the channel Item 7 and attach it to the upper half of the hinged section of the tilt over tower with three 3 hex head bolts and washers Item H5 P N 80027 as shown in Figure 2 2 Locate the eye strap and attach it to the upper half of the hinged section using the two 2 tapped holes and two 2 flat head screws provided Item H3 P N 80025 3 Feed the 3 8 nylon rope through the rope bail and tie a stopper knot at the end as shown in Figure 6 4 Insert balance weight mounting bolt Item H6 P N 80028 through the hole near the bottom end ofthe channel section Install washers amp nut and tighten as shown in Figure 6 5 Locate the lightning rod two 2 3 8 16 x 4 eye bolts nuts and washers twenty five 25 feet 32 17 braided copper wire the Bimetallic Connector and the eight 8 ground wire securing clips which are all part of Item 33 P N 80090 Secure the lightning rod to the tower using the two 2 eyebolts nuts and washers with the upper portion of the rod bending away from the tower as shown on Figure 6 Attach one end of the down conductor to the bottom of the lightning rod using the Bimetallic Connector Route the grounding wire down the tower securing every two 2 feet with the clips and fasteners supplied Route the grounding wire to the earth ground system and secure with a wire clamp making sure any wire bends have a radius of at least 8 inches Trim any excess grounding wire 6 Erect the tilt ove
38. a Memorandum of Understanding MOU and a site specific Operations and Maintenance Manual OMM be established and agreed to between the sponsor owner and the FAA prior to commissioning the AWOS installation for public use The purpose of the MOU OMM is to ensure that there is a mutual understanding of what is required to operate and maintain a commissioned AWOS system After the AWOS site installation is complete and the MOU OMM is signed the FAA will conduct a commissioning ground inspection to verify that the system is installed and operating correctly and that the owner has the resources and procedures in place to properly maintain the system In addition a flight inspection 15 required for NAVAIDS used for AWOS dissemination As installation approaches operational readiness the owner should request a commissioning ground inspection by Regional Airway Facilities AAF personnel This inspection includes participation by the owner or the owner s maintenance representative This commissioning inspection includes tests and checks of the operational readiness of the AWOS system installation and also includes recording of initial facility performance data which should be retained in the facility reference data file FRDF 4 2 ESTABLISHING SITE SPECIFIC OPERATIONAL PROCEDURES FAA Order 6700 20 requires that a Site specific Operational Maintenance Manual OMM be established and the content agreed to by the FAA prior to commissioning of an AWOS sy
39. a record form Type Y and the new span value will be written to EEPROM Remove the scatter plate and store it for protection Type FR to reset the sensor and exit the diagnostic mode Disconnect the notebook computer and reconnect the sensor RS232 cable to the communication cable running up to the DCP at the bottom of the tower Apply Dow Corning 4 liberally to the connection to protect against moisture If the battery backup option is installed reconnect the red battery cable lead to the positive terminal of the battery If additional installation checkout verification tasks are to be performed skip to the next verification task If verification tasks are complete toggle the ALERT MESSAGE switch 4 times to return the unit to service Verify the system begins outputting visibility information after a ten 10 minute algorithm delay If all maintenance tasks are complete issue another advising users that DigiWx maintenance activities were completed system has been returned to normal operation The expiration date and time of this NOTAM should coincide with the same expiration date and time of the previous advisory NOTAM that was issued to put the system in the maintenance mode Verify that this NOTAM advisory is correctly displayed on the operator screen Refer to the DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 for instructions on how to enter and delete NOTAMs If you need additional assistance or have
40. and black visibility power harness to the positive and negative outputs of the visibility sensor 12VDC power supply See Figure 17a Before the DigiWx AWOS Data Collection Processor DCP can sense the 6000 it needs to be configured Using a laptop running ASOSDCP102 and connected to the DCP through the RS232 communication cable located in the tower enter the password protected configuration mode of Digi Wx AWOS DCP by applying power to the DCP and typing an m to force the DCP to the monitor mode Enter current date of this configuration change In configuration mode set the visibility sensor to 6000 and the baud rate to 9600 Esc to store the configuration data in the EEPROM The DCP will ask for the password enter the password and type CR the new configuration data will be stored Exit ASOSDCP102 by typing x followed by enter Turn power to the DigiWx Tower off Connect the DB9 connector on the Visibility Sensor Data Cable to the RS232 cable coming down inside the tower using null modem adapter Apply Dow Corning DC7 liberally to the connectors to protect against moisture Place the cable connection in the junction box with the power supply to protect it against weather Power up the DigiWx tower and visibility sensor Allow 10 minutes for the averaging algorithm to be satisfied and visibility information will appear in the output string 40 BELFORT instrument Proprietary Information This pag
41. ced an equal distance from the center of each hood within 74 inch see figure 25 69 BELFORT instrument Proprietary Information Figure 24 Scatter Plate Attachment Detail AMBIENT LIGHT 3 8 X 5 BOLT 4 REQD SENSOR WASHER FLAT 8 REQD WASHER LOCK 4 REQD 34 37 NUT 4 REQD VISIBILITY SENSOR MTG PLATE 4 n D SCATTER PLATE ASSEMBLY Figure 25 Tower with Visibility Scatter Plate Attached 6 Ifthe battery backup option is installed disconnect the red positive lead from the battery 7 At the bottom of the tower the RS232 communication cable from the visibility sensor is connected to the RS232 cable from the DCP through a null modem adapter Disconnect the RS232 visibility sensor cable from the null modem adapter and connect it to a notebook computer running Hyper terminal or Procomm 9600 baud N 8 1 It may be convenient to add a RS232 extension cable 70 BELFORT instrument Proprietary Information 8 10 11 12 13 14 Remove power to the DCP by turning off the circuit breaker in the power box After waiting 10 seconds turn it back on again to force a reset The display should show the start message with model and version number If not disconnect and reconnect the RS232 cable and remove and reapply power to the DCP once again
42. ction light mounting bracket with obstruction light to the tower This will also complete the attachment of the cross arm Figure 7 illustrates the details of the cross arm assembly Figure 8 illustrates the details of the obstruction light 2955 BELFORT instrument Proprietary Information SENSOR HARNESS WIND DIRECTION le CABLE I f 7 PART OF ITEM 16 O b ABLE LOCK WASHER FLAT WASHER ADAPTER BRACKET 4 PLACES 2 E M WIND SPEED ra CABLE PART OF ITEM 16 Figure 7 Installing Cross Arm Assembly 26 BELFORT instrument Proprietary Information 7 6 INSTALLING DCP AND BAROMETER ENCLOSURE SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position 2 Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED DCP enclosure Item 8 Fold Over Tower with all cabling preinstalled Data Communication Cable Item 35 Four 8 32 x Pan head screws Item H4 P N 80026 Phillips head screwdriver Two each static pressure vents Item 49 P N 80111 Phillips head screwdriver Four 1 4 20 bolts with washers Item H2 P N 80023 Socket wrench and 94 socket ON Uca ab
43. d Refer to DigiWx Maintenance Manual Appendix A and document these preliminary performance verifications on a Comprehensive Facility Performance and Adjustment Record form 44 FACILITY COMMISSIONING AND INSPECTION The facility commissioning inspection is a formal FAA ground inspection of the AWOS site installation The completion of this event assures and demonstrates to the FAA that the system has been installed correctly and is operating in accordance with specified performance requirements It consists of demonstration that the system is operational and performing within the operating tolerances specified in Chapter 4 of FAA circular AC 150 5220 16C and includes participation of the system owner s FAA approved maintenance representative The owner s maintenance personnel should operate the system and measure all applicable system performance parameters as identified in Chapter 4 of AC 150 5220 16C The results of this initial commissioning performance parameter measurements shall be recorded and documented on the Comprehensive Facility Performance and Adjustment Data form similar to FAA Form 6030 17 and must be retained at the facility in the Facility Reference Data File FRDF If the installed system uses the voice outlet of the local NAVAID to broadcast weather information the commissioning inspection will also include a flight inspection to ensure that the performance of the NAVAID has not been degraded as a result of the AWO
44. d now be displayed locally on PC Click Show Data box to view current DDR data stream Insure the accuracy of the sound card adjustments by opening Start gt Control Panel gt Sound amp Audio Devices gt Sound Scheme No Sounds 167 BELFORT instrument Proprietary Information 13 Open Start gt Control Panel gt Sound and Audio Devices gt Audio gt Sound Playback Volume and insure that Volume Control amp Wave must NOT be muted Volume Control set to 50 full scale Wave set to 50 full scale SW Synth mute box checked Line In mute box checked CD Audio mute box checked PC Beep mute box checked 14 Tord pilot s activate DigiWx Voice weather broadcast by clicking the microphone the pre set number of times using the local airport UNICOM frequency 15 After being recognized by the PC s software a weather message including wind direction speed gusts and local barometric pressure setting is broadcast over an existing UNICOM frequency If beginning of DigiWx Automated Advisory is being cutoff increase volume control setting noted in number 13b above 58 BELFORT instrument Proprietary Information POWER POWER AC POWER KEY BOARD EDAREN MONITOR BLUE _ MONITOR Z AN 2 em N 7 MICROPHONE GREEN MICROPHONE LINE IN TO FRONT PANEL 12VAC VHF 6 vDC POWER SUPPLY 4401 4 09 TO DC OUT DIGIVV X MERWE PHO
45. e intentionally left blank 41 BELFORT instrument Proprietary Information 7 12 INSTALLING SOLAR POWER KIT Note Each solar power kit and configuration will be sized for the specific location and historical weather conditions The following is a generic installation guideline m Sero I cU xc u Ne SAFETY PRECAUTIONS REMOVE THE IN LINE FUSE FROM THE RED LEAD OF THE SOLAR PANEL WIRES Do not perform DigiWx AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Solar panel support brackets Part of Item 24 Four bolts Part of Item 24 Solar power panel Item 23 Solar panel mounting channel Part of Item 24 Four 5 16 4 lag bolts Item H9 P N 80032 Four 3 8 16 x 1 bolts washers and nuts Part of Item 22 Socket wrench with 3 8 and 5 16 sockets Flat head or Phillips Screwdriver Extra hardware is supplied if needed Item H9 P N 80032 INSTALLATION INSTRUCTIONS Unpack solar panel Install solar panel support brackets to the back side of the solar panel as shown in Figure 14 using the four 1 4 bolts provided Be sure that the mounting support brackets are aligned as shown in the instructions located in the Solar Power kit box Loosely attach the panel support end brackets to th
46. e name of that city state ITEM 13 Enter the full name of the nearest public use not private use airport or heliport or military airport or heliport to the site ITEM 14 Enter the distance from the airport or heliport listed in 13 to the structure ITEM 15 Enter the direction from the airport or heliport listed in 13 to the structure ITEM 16 Enter the site elevation above mean sea level and expressed in whole feet rounded to the nearest foot e g 17 3 rounds to 17 17 6 rounds to 18 This data should match the ground contour elevations for site depiction submitted under ITEM 20 ITEM 17 Enter the total structure height above ground level in whole feet rounded to the next highest foot e g 173 rounds to 18 The total structure height shall include anything mounted on top of the structure such as antennas obstruction lights lightning rods etc ITEM 18 Enter the overall height above mean sea level and expressed in whole feet This will be the total of ITEM 16 ITEM 17 ITEM 19 If an FAA aeronautical study was previously conducted enter the previous study number ITEM 20 Enter the relationship of the structure to roads airports prominent terrain existing structures etc Attach an 8 1 2 X 11 non reduced copy of the appropriate 75 minute U S Geological Survey USGS Quadrangle Map MARKED WITH A PRECISE INDICATION OF THE SITE LOCATION To obtain maps Contact USGC at 1 800 435 7627 or via Internet at http mappi
47. e solar panel support brackets as shown in the instructions located in the Solar Power Kit box Locate the solar panel mounting channel and secure it near the top of the south side of the aluminum channel P N 80021 using the four lag bolts Item H9 P N 80032 provided NOTE IT IS RECOMMENDED THAT TWO PEOPLE PERFORM THIS STEP Attach the assembled solar panel to the solar panel support end brackets using four 3 8 16 x 1 bolts nuts and washers provided Start the two top bolts first and finger tighten them The two bottom bolts can then be inserted and the solar panel set to 45 from the vertical plane Tighten all bolts at this time The red and black power leads will be attached to the solar charge controller as described in section 7 14 Figure 18 42 BELFORT instrument Proprietary Information LAG BOLT FLAT WASHER 4 PLACES N SET ANGLE NOTED IN MANUAL POST SOLAR PANEL KIT NOTE SEE SOLAR PANEL MOUNTING KIT INSTRUCTIONS Figure 14 Installing Solar Power Kit 43 BELFORT instrument Proprietary Information 7 13 INSTALLING BATTERY BOX MOUNTING BRACKET E Uv dero SAFETY PRECAUTIONS Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx M AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm o
48. e21 System Status Page 60 Figure22 Typical DigiWx Tower Equipment Mounting Locations 62 Figure 23 Securing the Tower for Maintenance einen 63 Figure 24 Scatter Plate Attachment Detalil 68 Figure25 Tower with Visibility Scatter Plate Attached 68 Figure 26 Installation of Opaque Filters on Transmitter and Receiver Hoods 69 Figure 27 Wind Direction Vane ATlIgnimett oae adi Date d i p cad 72 Appendices Appendix A FAA Construction Notification Requirements amp Forms ji 1 0 INTRODUCTION 1 1 PURPOSE This manual has been prepared to thoroughly describe the planning FAA coordination requirements hardware software installation and checkout procedures to be followed by system owners and qualified technicians to assure successful installation and facility commissioning of a DigiWx 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 16C and other referenced documents This manual is intended to support installation and operational checkout procedures applicable to all FAA approved DigiWx AWOS configurations Consequently only those hardware and software installation procedures applicable to the specific DigiWx AWOS configuration o
49. eceived pursuant to 49 U S C section 46301 a I hereby certify that all of the above statements made by me are true complete and correct to the best of my knowledge In addition agree to mark and or light the structure in accordance with established marking and lighting standards as necessary Form 7460 1 2 99 Supercedes Previous Edition NSN 0052 00 012 0008 INSTRUCTIONS FOR COMPLETING FAA FORM 7460 1 PLEASE TYPE or PRINT ITEM 1 Please include the name address and phone number of a personal contact point as well as the company name ITEM 2 Please include the name address and phone number of a personal contact point as well as the company name ITEM 3 New Construction would be a structure that has not yet been built Alteration 15 a change to an existing structure such as the addition of a side mounted antenna a change to the marking and lighting a change to power and or frequency or a change to the height The nature of the alternation shall be included in ITEM 221 Complete Description of Proposal Existing would be a correction to the latitude and or longitude a correction to the height or if filing on an existing structure which has never been studied by the The reason for the notice shall be included in ITEM 21 Complete Description of Proposal ITEM 4 If Permanent so indicate If Temporary such as a crane or drilling derrick enter the estimated length of time the temporary structure
50. f options purchased need be completed Owners and installation technicians are encouraged to contact the Belfort product support group at 1 800 937 2353 regarding questions concerning the applicability of any specific installation procedure 2 0 APPLICABLE DOCUMENTS amp LIST OF ACRONYMS 2 1 APPLICABLE DOCUMENTS FAA 150 5220 16C Automated Weather Observing Systems AWOS For Non Federal Applications Order 6700 20 Non Federal Navigational Aids and Air Traffic Control Facilities FAA Otrder 6560 13B Maintenance of Aviation Meteorological Systems and Miscellaneous Aids FAA Form 6030 1 Facility Maintenance Log FAA Order 6560 20B Siting Criteria for Automated Weather Observing System AWOS FAA Form 7460 1 Notice of Proposed Construction or Alteration FAA Form 7460 2 Notice of Actual Construction or Alteration 2 2 LIST OF ACRONYMS AC 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 DC Direct Current DCP Data Collection Processor DDR Digital Data Receiver zj BELFORT instrument Proprietary Information DMM DSL DTMF ELDF EEPROM FAA FBO FCC FRDF FRU FSDO Hg HHDU ICAO ID INOP KT LED LRU MCIF MHz MOU MSL NAVAID NIST NOTAM OMM RAF REL HUM RIF RPM T1 UHF UNICOM VAC VDC VDD VDU VHF vs Digital Multi meter Digital Subscriber Line Dua
51. flange and discard Route the wind direction sensor cable through the cutout in the top of the cross arm Carefully insert the keyed cable connector into the sensor and hand tighten Insert sensor with the cable attached through the cutout in the top of the cross arm and position it so that the red pointer is parallel to the cross arm as shown in Figure 11 Secure the sensor with three 3 Socket head screws and washers Item H1 P N 80022 using the Allen wrench provided 7 Insert the End Cap Item 27 into the end of the cross arm and tap into place Insert the three 3 hole plugs in the bottom of the cross arm to cover the screw access holes 8 To verify wind direction sensor alignment follow the procedures in section 7 16 Dy ds USES 2385 BELFORT instrument Proprietary Information WIND DIRECTION CABLE NOTE KEYED CONNECTOR SCREW HAND TIGHTEN END CAP LOCK WASHER FLAT WASHER 3 PLACES REMOVE 3 SCREWS AND KNURLED PROTECTIVE COLLAR j AS P CAP PLUG WIND DIRECTION d S PLACES SENSOR M RED POINTER lt N BA CROSS ARM A LE s NOTE THE WIND DIRECTION VANE HAS BEEN ALIGNED AT THE FACTORY SUCH THAT IT WILL INDICATE A DIRECTION OF 360 wHEN IT IS ALIGNED WITH THE RED POINTER MOUNTED ON THE SENSOR BODY DO NOT REMOVE WIND DIRECTION VANE FROM THE SHAFT OR THE RED POINTER FROM THE BODY Figure 11 Installing Wind Direction Sensor 34 BELFORT instr
52. g into account local variation or declination 10 BELFORT instrument Proprietary Information Figure 2 Typical Alignment of Tower Mounting Post 1 BELFORT instrument Proprietary Information 4 Use a carpenter s level to align the aluminum channel P N 80021 vertical to the ground 5 Secure the aluminum channel P N 80021 in this alignment 6 After securing the aluminum channel P N 80021 check both the true north and vertical alignments and adjust if necessary 7 While holding the aluminum channel P N 80021 in alignment fill the hole with concrete to ground level Immediately after pouring the concrete recheck both the true north and vertical alignments and adjust if necessary 8 Leave the alignment holding arrangement in place until the concrete is set 9 When the concrete is set remove the alignment holding arrangement and verify that one 6 side of the aluminum channel P N 80021 still faces to true North 10 Mark the north facing side of the aluminum channel P N 80021 with the letter N using paint or a permanent marker 11 As a condition of the DigiWx sale the airport owner will coordinate the physical site location of the DigiWx tower on the airfield with the local Flight Standards District Office FSDO 6 2 3 INSTALLATION ON FLAT METAL PAVED OR WOOD SURFACE The DigiWx AWOS can be installed on any flat metal or wood surface by securing the appropriate mounting bracket to the selected
53. hole Rotate the tower out of the way and drill the second 2 hole through the aluminum channel P N 80021 post at that point 4 Rotate the lower section of the tilt over tower back to vertical being careful not to pinch the wiring at the hinge point Insert the bottom mounting bolt install a nut and washer on one of the bolts and run the nut down the bolt until 4 2 of thread remains above the washer H7 P N 80030 as shown in Figure 4 5 NOTE DO NOT INSTALL NUT AND WASHER ON THE SOUTH SIDE OF THE aluminum channel P N 80021 POST AT THIS TIME 6 Figure 5 illustrates the lower portion of the tilt over tower 18 BELFORT instrument Proprietary Information LOCK WASHER FLAT WASHER ALERT MESSAGE TOGGLE SWITCH ALUMINUM CHANNEL P N 80021 PART OF SOLARPANEL Y 4X FLAT LAG BOLT NUT WASHER FLAT WASHER us LOCK WASHER ue FLAT WASHER NUT FLAT WASHER BOLT LOCK WASHER FLAT WASHER EARTH GROUND TO POWER SUPPLY j GREEN TO POWER SUPPLY WHITE TO BATTERY BLACK TO BATTERY 4 RED WASHER LAG WASHER BOLT Figure 5 Tilt Over Tower Assembly amp Installation Lower Portion 19 BELFORT instrument Proprietary Information 20 BELFORT instrument Proprietary Information BOLT LOCK WASHER FLAT WASHER FLAT WASHER PANHDSCREV 2 g LOCK WASHER BARBEDFITTING LOCK WASHER FLAT WASHER
54. igiWx Advisor A2 BNT A2 B A2 BV A2 BW A2 BWV A2 BWS A2 Internet DigiWx Advisor Dial A3 BNT A3 B A3 BV A3 BW A3 BWV A3 BWS A3 In DigiWx Advisor FBO 4 BNT A4 B A4 BV A4 BW A4 BWV A4 BWS A4 Internet Dial In With DigiWx Voice UNICOM V1 BNT A V1 B A V1 BV A V1 BW A V1 BWV A V1 BWS A V1 Or DigiWx Voice VHF V2 BNT A V2 B A V2 BV A V2 BW A V2 BWV A V2 BWS A V2 Table 1 Configurations Available DigiWx Voice requires the presence of one of the DigiWx Advisor modules Al A2 A3 or A4 systems are supplied with one Hand Held Display Unit A solar power option is available for all configurations and is denoted by appending SP to the above designators 5 BELFORT instrument Proprietary Information Details of the configurations in the shaded boxes in table 1 are listed as examples BNT H Dual Barometer DCP wall mount Handheld Receiver HHDU B Al Dual Barometer DCP Tower Mount HHDU DigiWx Advisor FBO BV A3 Dual Barometer DCP Visibility Tower Mount HHDU DigiWx Advisor FBO Dial In BW A V1 Dual Barometer DCP Tower Mount Wind Speed and Direction Temperature and Dew point HHDU DigiWx Advisor Al A2 A3 or A4 DigiWx Voice on UNICOM BWV A V2 Dual Barometer DCP Tower Mount Wind Speed and Direction Temperature and Dew point HHDU Visibility DigiWx Advisor Al A2 A3 or A4 DigiWx Voice on Dedicated VHF 6 BELFORT instrument Proprietary Informati
55. inals on the solar controller red to positive and black to negative as shown in Figure 16 Place the solar controller on the battery and connect the 6 inch red lead to the positive terminal and place the 6 inch black lead to the negative terminal NOTE Some solar panel charge controllers may include terminal labeled LOAD DO NOT USE THESE TERMINALS Feed the end of the Battery Power Cable without lugs through one of the available water tight penetrations on the AC junction box The red or positive lead goes to the bottom or input side of the DC circuit breaker Make sure the breaker is open before attaching any wires The red wire from the DCP power cable attaches to the top or output side of the DC breaker The black or negative Battery Power Cable lead is made up with the green wire attached to the grounding stud and the black lead from the DCP power cable See Figures 17a and 17b Attach the lugged ends of the Battery Power Cable to the battery terminals red to positive and black to negative Reset the DC breaker to enable battery backup Route the battery retaining strap through both of the battery retaining strap brackets which are mounted on the aluminum channel P N 80021 post and then place the battery in the battery box sitting on the bracket and secure with retaining strap 47 BELFORT instrument Proprietary Information ALUMINUM CHANNEL P N 80021 E s s lt lt se 2 t
56. input line The Black or hot lead goes to the bottom or input side of the AC circuit breaker The Green or ground wire gets a 1 4 inch lug attached and goes to the ground marshalling post The white or neutral lead makes up with the white lead from the surge suppressor and the white leads from the Sola AC to DC power supplies Connect the white wire from the DCP power cable to the negative terminal of the 15VDC power supply output and the green wire to the positive terminal Feed the end of the Battery Power Cable without lugs through one of the available water tight penetrations on the AC junction box The red or positive lead goes to the bottom or input side of the DC circuit breaker Make sure the breaker is open before attaching any wires The red wire from the DCP power cable attaches to the top or output side ofthe DC breaker The black or negative Battery Power Cable lead is made up with the green wire attached to the grounding stud and the black lead from the DCP power cable See Figures 17a and 17b Attach the lugged ends of the Battery Power Cable to the battery terminals red to positive and black to negative Reset the DC breaker to enable battery backup Thread the battery box retaining strap through both of the battery box retaining brackets mounted on the aluminum channel P N 80021 post Place the battery in the battery box set the battery box on the battery box mounting bracket and secure it with the battery box retaining
57. isibility sensor there will be a serial RS232 cable from the visibility sensor connected to another RS232 cable which is connected to the back of the DCP Disconnect these two RS232 cables Connect the cable connected to the DCP to the test notebook computer RS232 serial communication port If there is no visibility sensor installed connect the portable notebook computer with ASOSDCPI02 installed to the DCP through the serial communication cable that extends to the bottom of the tower If the system has a battery backup disconnect the battery power by turning circuit breaker off in the power distribution box Start the ASOSDCP102 program After 10 seconds turn the circuit breaker in DigiWx power box off and then on again to force a reset Immediately type m lt enter gt to put the DCP in monitor mode Type T10 lt enter gt to display the measured pressure from the 2 sensors If the measured pressure of either of the sensors differs from the standard by more than 0 10 in Hg it indicates that the sensor is not suitable for calibration Replace the DCP before continuing further with this procedure DO NOT ATTEMPT TO CALIBRATE A PRESSURE SENSOR THAT DIFFERS FROM THE STANDARD BY MORE THAN 0 10 in Hg If either sensor differs from the standard by more than 02 in Hg or the sensors differ from each other by more than 02 in Hg start the pressure sensor calibration process by typing U and press enter The DCP will prompt you
58. it Item 46 P N 90001 Notebook computer running Hyper terminal and male female serial DB9 cable Window cleaner and soft cloth Tape Measure eee PROCEDURE At the DATU display terminal issue advisory to alert users that DigiWx system is being serviced prior to beginning this maintenance tasks The NOTAM to be issued is DigiWx system being serviced do not use current weather data outputs Verify that this NOTAM advisory is displayed on the operator screen prior to beginning this maintenance tasks Refer to the DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 for instructions on how to enter and delete NOTAMs Before beginning calibration clean the visibility sensor glass windows the ALS window and the scatter plate with a non abrasive commercial window cleaner and a soft cloth Toggle the ALERT MESSAGE toggle switch located on the lower half of the hinged tower section six 6 times The Alert messages are programmed in the same order as they appear in Table 3 If an alert message other than message 6 is displayed consult the list of alert messages in Table 3 You will need to toggle the tower switch an appropriate number of times until the DigiWx AWOS being serviced alert message is displayed For example if the alert message number 2 is displayed toggle the switch 4 times Mount the scatter plate to the sensor support bracket as shown in Figures 24 and 25 Make sure the scatter plate is spa
59. l Tone Multi Frequency Endless Loop Dedicated Frequency Electrically Erasable Programmable Read Only Memory Federal Aviation Administration Facility Base Operator Federal Communication Commission Facility Reference Data File Field Replaceable Unit Flight Standards District Office Mercury Hand Held Display Unit International Civil Aviation Organization Identification Inoperative Knots Light Emitting Diode Lowest Replaceable Unit Microphone Click Interface MegaHertz million Hertz Memorandum of Understanding Mean Sea Level Navigational Aid National Institute of Standards and Technology Notice To Airmen Operations and Maintenance Manual Regional Airway Facilities Relative Humidity Radio Interface Revolutions Per Minute T carrier 1 digital transmission line 1 544 Mbps 24 voice channels Ultra High Frequency Universal Integrated Communications System Volts Alternating Current Volts Direct Current Version Description Document DigiWx Configuration Baseline Document Video Display Unit Very High Frequency Visibility Sensor 20 BELFORT instrument Proprietary Information 3 0 SYSTEM OVERVIEW AND DESCRIPTION The DigiWx AWOS is a fully automated aviation weather observing and reporting system designed to support airborne and ground users The DigiWx system is modular and may be installed in a number of configurations A full DigiWx AWOS system consists of wind speed wind direction temperature
60. l automated weather data outputs are displayed in the Current Data section along the left side of the screen display 5 On the top line menu select and double click System Status Verify that the System status page figure 21 is displayed 61 BELFORT instrument Proprietary Information B System_Status System Status Return System AC Power DCP Error Counter Battery Condition DCP Status Transmission Delay Alert Message Status Sensors Altimeter Temperature Humidity Wind Speed Visibility Sensor Wind Direction Visibility Error Counter Data Quality Check Sensor Pressure Sensor 1 OK Visibility Pressure Sensor 2 OK Wind Direction Sensor Temperature Humidity Sensor OK Wind Speed Sensor Figure 21 System Status Page 6 Click on the Return button to return to the main DigiWx Advisor display screen 7 At the tower main AC power junction box simulate a power failure by turning off the circuit breaker 8 Verify that the System Status Alert Indicator is flashing on the main DigiWx Advisor screen This verifies that the DigiWx Advisor has recognized the status change 9 Select the System Status page again from the top line menu An AC Power error flag should be indicated If no error flag has been set contact Belfort Instrument Co for assistance in troubleshooting this problem 10 Return to the Main Advisor display screen 11 Select NOTAM from the top line men
61. lington MA 01803 5299 Tel 781 238 7520 FAA Form 7460 1 2 99 Supercedes Previous Edition Northwest Mountain Region CO ID MT OR UT WA WY Northwest Mountain Regional Office Air Traffic Division ANM 520 1601 Lind Avenue SW Renton WA 98055 4056 Tel 425 227 2520 Southwest Region AR LA NM OK TX Southwest Regional Office Air Traffic Division ASW 520 2601 Meacham Boulevard Fort Worth TX 76137 0520 Western Pacific Region Southern Region HI CA NY AZ GU AL FL GA KY MS NC PR Western Pacific Regional Office SC TN VI Air Traffic Division AWP 520 15000 Aviation Boulevard Hawthorne CA 90260 Tel 310 725 6557 Southern Regional Office Air Traffic Division ASO 520 1701 Columbia Avenue College Park GA 30337 Tel 404 305 5585 NSN 0052 00 012 0008 Fom Approved OMB No 2120 0001 SUPPLEMENTAL NOTICE Submission Instructions For Advance Notice of Actual Construction or Alteration Complete items 1 2 3A 1 Aeronautical Study No 3A 2 and 6 If applicable also complete items 4 and 5 Detach Part 1 Fold and tape at bottom Mail to the FAA Regional Office for your area Part 1A is provided for your file Q Notice of Actual Construction or Alteration U S Department of Transportation Please Type or Print on this Form Federal Aviation Administration 1 Construction A Type and Description of Construction B Owner of Structure C New C Alteration 2 Construction Location Height
62. llation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly gt PARTS AND TOOLS REQUIRED 1 Power drill and 2 drill bit 2 Two 2 bolts Four 4 flat washers four 4 nuts Item H7 P N 80030 3 Socket wrench and 13 16 socket 4 Carpenter s level INSTALLATION INSTRUCTIONS 1 Determine the face of the buried aluminum channel P N 80021 post that faces north 2 Attach the hinged section of the tilt over tower to the north face of the aluminum channel P N 80021 post using the bolts and washers provided Item H7 P N 80030 As shown in Figure 4 install a nut and washer on one of the bolts and run the nut down the bolt until 4 of thread remains above the washer This will ensure that you will be able to access the bolt head with a 13 16 socket in order to tighten the nut on the south face of the aluminum channel P N 80021 post Insert this bolt through the upper mounting bolt access hole in the lower half of the tilt over tower as shown in Figure 4 Now attach the tower to the north face of the aluminum channel P N 80021 post by inserting the bolt through 2 hole and tighten snugly 3 Using a carpenter s level ensure that the lower section of the tilt over tower is vertical Holding the tower section vertical mark the position of the bottom mounting bolt
63. ment Proprietary Information 9 7 WIND SPEED SENSOR VERIFICATION PROCEDURE The wind speed sensor verification procedure 15 a confidence test which verifies that the DigiWx AWOS wind speed readings compare reasonably with measurements taken from a reference Kestrel Model 3000 Wind Instrument SAFETY PRECAUTIONS 1 Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position 2 Do not perform DigiWx AWOS installation tasks during a thunderstorm 3 Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED DigiWx AWOS hand held display unit HHDU 2 Kestrel Model 3000 Wind Instrument VERIFICATION INSTRUCTIONS 1 Turn on the HHDU Stand near the base of the DigiWx tower facing into the wind Observe the DigiWx wind indicator vane to ascertain wind direction Turn on the Kestrel Model 3000 select average mode and hold the Kestrel Model 3000 as high as possible square to the wind for approximately one minute Observe the average on the Kestrel and compare it to the wind speed measured by the DigiWx and displayed on the HHDU Press refresh to get the most recent HHDU data The wind speed readings should agree within 2096 for speeds above 5 knots 2 Ifthe readings do not agree within 2096 the wind speed se
64. modem allow remote users to access the information DigiWx AWOS system software design also incorporates plug and play simplicity for ease of installation and maintenance and an intuitive interface for ease of operation Figure 1 illustrates a typical DigiWx installation with all sensor options installed and the solar power option added zd BELFORT instrument Proprietary Information Interior DigiWx Data Acquisition Exterior DigiWx Tower Terminal Unit Figure 1 4 BELFORT instrument Proprietary Information The system is modular and may be deployed in a number of configurations depending on the sensors selected the mounting method and the output options as shown in the following table DigiWx Sensor and Data Distribution Configurations Sensor Configurations DCP DCP DCP Dual Baro Tower Dual Baro Wind DCP Dual Baro Tower Mount Sock Mount DCP DCP Dual Baro Mount Wind Speed Wind Speed and Wind Speed and Data Distribution Dual Baro Wall Dual Baro Tower Tower Mount PUE Direction Direction Bop and Direction Options Mount Mount Visibility Temperature and Temperature and Temperature and Day Night Dew point Dew point Dew point Visibility with Visibility with Day Night Sensor Day Night Sensor Code BNT B BV W V S Handheld HHDU H BNT H B H BV H BW H BWV H BWS H DigiWx Advisor FBO Al BNT AI B Al 1 BW AI BWV AI BWS AI D
65. nd Dew point Verification Test is a confidence test which verifies that the DigiWx AWOS air temperature and humidity readings compare reasonably with readings taken by a calibrated Kestrel Model 3000 Wind Instrument VERIFICATION INSTRUCTIONS Turn on the HHDU Stand near the base of the DigiWx tower facing into the wind Observe the DigiWx wind indicator vane to ascertain wind direction Turn on the Kestrel Model 3000 select average mode and hold the Kestrel Model 3000 at eye level square to the wind and record the temperature and relative humidity If the wind speed is below 2 mph wave the Kestrel Model 3000 back and forth several times to assure air temperature is being measured and not case temperature Press refresh on the HHDU to get the most recent DigiWx data The temperature and humidity readings should agree within 20 If either temperature or relative humidity does not agree within 20 the sensor should be replaced 68 BELFORT instrument Proprietary Information 9 5 Ne 6000 VISIBILITY SENSOR INSTALLATION VERIFICATION amp CALIBRATION INSTRUCTIONS SAFETY PRECAUTIONS Do not perform DigiWx amp AWOS maintenance tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Belfort Instrument Company 6000 Calibration K
66. ng usgs gov If available attach a copy of a documented site survey with the certification stating the amount of vertical and horizontal accuracy in feet ITEM 221 For transmitting stations include maximum effective radiated power ERP and all frequencies For antennas include the type of antenna and center of radiation Attach the antenna pattern if available For microwave include azimuth relative to true north For overhead wires or transmission lines include size and configuration of wires and their supporting structures Attach depiction For each pole support include coordinates site elevation and structure height above ground level or water For buildings include site orientation coordinates of each corner dimensions and construction materials For alterations explain the alteration thoroughly For existing structures thoroughly explain the reason for notifying the FAA e g corrections no record of previous study etc Filing this information with the FAA does not relieve the sponsor of this construction or alteration from complying with any other federal state or local rules or regulations If you are not sure what other rules or regulations apply to your proposal contact local state aviation and zoning authorities Paperwork Reduction Work Act Statement This information is collected to evaluate the effect of proposed construction or alteration on air navigation and is no
67. nsor should be replaced 76 BELFORT instrument Proprietary Information 10 0 SYSTEM ALIGNMENT AND CHECKOUT The DigiWx AWOS system has been completely aligned and tested at the factory Final checkout consists of performing and documenting the verification procedures Sections 9 2 through 9 6 These final checkouts should be completed and documented prior to the FAA commissioning inspection to prepare for the inspection and to assure a successful commissioning of the system 11 0 CUSTOMER SUPPORT AND ASSISTANCE Belfort Instrument maintains a website http www belfortinstrument com containing an AWOS product support link This website provides an efficient method of providing owners and maintenance personnel the most up to date product information and support available to AWOS users For additional customer support owners and approved maintenance personnel can call Belfort Instrument at 1 800 937 2353 2772 BELFORT instrument Proprietary Information Appendix FAA Construction Notification Requirements amp Forms Please Type or Print on This Form Form Approved OMB No 2120 0001 Failure To Provide All Requested Information May Delay Processing of Your Notice FOR FAA USE ONLY P Aeronautical Study Number d a Notice of Proposed Construction or Alteration 1 Sponsor person company etc proposing this action Attn of 9 Latitude Name Address 10 Longitude _ 11 Datum NAD 83 0 NAD 27
68. on 4 0 COMMISSIONING PROCESS OVERVIEW In order for the system to become an FAA approved AWOS site installation a commissioning process must be completed There are three phases to the commissioning process They consists of 1 Establishing a Memorandum of Understanding MOU and a site specific Operations and Maintenance Manual OMM 2 Physical installation of DigiWx AWOS hardware and software at the owner s site and 3 Successful completion of a FAA conducted Commissioning ground inspection 4 1 COORDINATING THE INSTALLATION WITH THE FAA At least 120 days prior to the anticipated commissioning date the owner should notify the FAA Regional Flight Standards District Office FSDO so that timely routine revisions may be made to the instrument approach procedures Owners also need to contact and coordinate their installation plans be with the FAA regional non Federal facilities program manager and follow the procedures provided this person may be called the non Federal coordinator in some regions This FAA person is the official FAA point of contact and is responsible for the overall project coordination between the sponsor owner and other elements within the FAA Coordination will include preparation and submittal of FAA forms 7460 Notice of Proposed Construction or Alteration Refer to Appendix A for forms requirements and instructions for completing and submitting these forms FAA Order 6700 20 requires that
69. on Noise or sudden rotational resistance indicates worn bearings and the unit must be replaced This is a digital sensor if the true north direction is reported accurately all other directions will also be reported accurately If a segment of the sensor is out the error log will report recurring problems 74 BELFORT instrument Proprietary Information 17 18 19 Untie the rope and SLOWLY erect the tower to the vertical position and secure it by installing and tightening DO NOT OVER TIGHTEN the three 3 tower securing bolts NOTE Be careful to avoid pinching the wires on the inside of the hinged tower section when raising the tower Toggle the ALERT MESSAGE switch 4 times to return the unit to service Push the refresh button on the HHDU to make sure the ALERT MESSAGE is gone and that the system begins reporting weather data as expected If all maintenance tasks are complete issue another advising users that DigiWx maintenance activities were completed system has been returned to normal operation The expiration date and time of this NOTAM should coincide with the same expiration date and time of the previous advisory NOTAM that was issued to put the system in the maintenance mode Verify that this NOTAM advisory is correctly displayed on the operator screen Refer to DigiWx Operator Manual sections 4 2 2 5 and 4 2 2 6 for instructions on how to enter and delete NOTAMs 2752 BELFORT instru
70. ou sure question and wait approximately five 5 minutes for the routine to finish and prompt for acceptance This acceptance prompt allows you to recover from an accidental invocation of the routine Acceptable values for the zero offset are between 0 01 and 0 01 If the zero offset value displayed is acceptable type Y and then press enter The new value will be written to EEPROM it will be discarded if you answer N Answer yes and press lt gt when prompted with the OK to save TxPwrCal Question Remove the opaque filters from the hoods 2712 BELFORT instrument Proprietary Information 15 16 17 18 19 20 21 22 23 24 26 21 The span state calibration requires the use of the scatter plate installed as shown figure 24 Install the scatter plate and record the Cal ExtCo marked on the scatter plate and press enter Make sure the number in the configuration information for ExtCo is the same extinction coefficient as the calibration scatter plate If not enter the correct number in the configuration data Press ESC key to get back to the terminal screen Type FS and type Y at the you sure query When the routine has finished the terminal will display the new span calibration value and prompt for acceptance Acceptable values range between 0 5 and 4 0 Record the acceptable value displayed on the Quarterly maintenance dat
71. ph b of this section does not apply and the notice may be sent by telephone telegraph or other expeditious means with an executed FAA Form 7460 1 submitted within five 5 days thereafter Outside normal business hours emergency notices by telephone or telegraph may be submitted to the nearest FAA Flight Service Station e Each person who is required to notify the Administrator by paragraph b or c of 877 13 or both shall send an executed copy of FAA Form 7460 2 Notice of Actual Construction or Alteration to the Manager Air Traffic Division FAA Regional Office having jurisdiction over the area involved ADDRESSES OF THE REGIONAL OFFICES Alaska Region Eastern Region AK DC DE MD NJ NY PA VA WV Alaskan Regional Office Eastern Regional Office Air Traffic Division AAL 530 Air Traffic Division AEA 520 222 West 7 Avenue JFK International Airport Anchorage AK 99513 Fitzgerald Federal Building Tel 907 271 5893 Jamaica NY 11430 Central Region Tel 718 553 2616 IA KS MO NE Great Lakes Region Central Regional Office Air Traffic Division ACE 520 601 East 12th Street Kansas City MO 64106 Tel 816 426 3408 or 3409 IL IN MI MN ND OH SD WI Great Lakes Regional Office Air Traffic Division AGL 520 2300 East Devon Avenue Des Plaines IL 60018 Tel 847 294 7568 New England Region CT MA ME NH RI VT New England Regional Office Air Traffic Division ANE 520 12 New England Executive Park Bur
72. pressure ports 60 BELFORT instrument Proprietary Information 9 2 DISPLAY ACQUISITION TERMINAL UNIT DATU CHECKOUT 1 To check that System DATU is functioning properly the following actions must first have been completed a Tower must be operational b DATU must have all software installed and be operational 2 Start the DigiWx Advisor software by double clicking on DigiWxFBO icon on the desktop Verify that the screen display appears as similar to figure 20 DigiWx Current Weather DER File Configuration System Status NOTAM History Help Advisor is Belfort Airport BALTM Elevation 100 soo Lat35 10 10N 10 9104 1010 MEASUREMENT FROM BELFORTinsmumenr COMPANY Baltimore MD CTAF Unicom Freq 122 8000 Current Data Wind and Runwa 11 25 2003 01362 o Altimeter 30 04 Hg e _Show Graph Visibility 1 3 4 V 3 SM j Weather Advisories _Show Chart Wind 190 5 KT Gusts Relative Humidity Jensity Altitude Condensation Altitude Wind Chill Favored Runway 18 METAR BALTM 25 0136Z AUTO 19005KT VIS 1 3 4V3 05 03 A3004 Figure 20 Typical DigiWx Advisor Main Screen 3 Verify that the correct airport name ICAO latitude and longitude site elevation and CATF frequency are displayed If any of this information is incorrect contact Belfort Instrument Co for assistance in correcting these factory installed settings 4 Verify that al
73. r the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Battery box mounting bracket Item 21 1 4 lag bolt and washer Item H8 P N 80031 Two 2 battery box strap brackets Part of Item 22 Four 4 wood screws Part of Item 22 Phillips Screwdriver Socket wrench and 13 16 socket INSTALLATION INSTRUCTIONS Locate the battery box mounting bracket and place it over the end of the bottom tower mounting bolt as shown in Figure 15 Install washer amp nut and tighten snugly Drill pilot hole and install the lag bolt Item H8 P N 80031 through the remaining hole in the battery box mounting bracket Locate the two 2 battery box strap brackets Part of Item 22 and install them on the aluminum channel P N 80021 post as shown in Figure 15 at 1 and 12 above the top of the battery box mounting bracket 44 BELFORT instrument Proprietary Information ALUMINUM CHANNEL P N 80021 TOWER MOUNTING BOLT TOWER Ne 4 PART OF ITEM 22 12 ABOVE FIRST STRAP BRACKET n s PART OF ITEM 22 7 2 PLACES k 4 1 2 PART OF ITEM 22 1 ABOVE BATTERY MOUNTING BRACKET TOWER MOUNTING PART OF ITEM 22 BOLT 2 PLACES 77 BOLT hw p d ur NUT 57 A FLAT WASHER e 9 2 NUT FLAT WASHER LAG BOLT FLAT WASHER BATTERY BOX SUPPORT BRACKET Figure 15 Installing Battery Box Mounting
74. r tower and hold it in place by installing the lower one of the three 3 tower securing bolts Item H5 P N 80027 and tighten finger tight NOTE Do not over tighten the tower securing bolts since excessive torque may damage the threaded inserts Use care when erecting the tower and ensure that the wiring routed inside the hinged tower section is not being pinched at the hinge point 235 BELFORT instrument Proprietary Information 7 Place the five 5 12 5 Ib weights provided over the balance weight mounting bolt and secure with hardware Item H6 P N 80028 as shown in Figure 6 WEIGHTS SPLACES FLATWeS ER FU AND LOCK MASHER FOR SECJ3ING TOE2IN THE LPRICH ON BAIL SRE A MARUM Pis 0 021 Figure 6 Installing Tower Channel Section and Balance Weights 24 BELFORT instrument Proprietary Information 7 5 Dp INSTALLING CROSS ARM ASSEMBLY AND OBSTRUCTION LIGHT SAFETY PRECAUTIONS Before starting any power installation tasks ensure that the A C power circuit breaker is in the open position Do not perform DigiWx AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Cross arm assembly
75. randed copper wire All connections shall be CadWeld or commercial equivalent 12 BELFORT instrument Proprietary Information The site earth ground system must also be connected to any adjacent grounding system within 30 feet of the DigiWx installation with 1 0 bare copper conductor NOTES ALL CONNECTING CONDUCTORS TO BE 31 0 AWG BARE COPPER EXOTHERMICALLY WELDED TO lt THE 10 X 3 4 COPPER CLAD m STEEL GROUND RODS Figure 3 Installation of Earth Grounding System 13 BELFORT instrument Proprietary Information 7 0 Hardware Installations All DigiWx AWOS systems except the Dual Barometer pressure reference only versions BNT are mounted on a 15 foot fold over tower wz i This photo illustrates the installation of the DigiWx DATU at an operational site Figure 4 4 BELFORT instrument Proprietary Information 7 1 PARTSAND HARDWARE PARTS LIST PART f NSTALLATION REF QTY 1 1 ph 80089 Pole and Harness 1 Figs5 6 7 15 amp 16 80018 Computer and Monitor 1 Fig 18 6 122197 CrossArm Figssa amp 7 L a 7 8 679401 DCP Enclosure Assy _ 1 Fig 9 8004 Wind Speed Bottle 1 Fig 10 10 8005 Wind Direction Bottle 1 Figi l 8006 Wind SpeedCups 1 Figl 12 80017 Direction Vane 1 13 ZXSRS8HC____ Solar Radiation Shield
76. ssembly through the bottom of the adapter until the connection between the sensor and the connector is under the rubber seal in the top of the plastic adapter Hand tighten the jam nut to secure the sensor in the adapter Slowly insert the plastic adapter with the sensor and connector installed through the bottom of the radiation shield until the end of the sensor touches the top of the radiation shield Retract the adapter approximately 2 and secure it in place by tightening the three 3 Phillips head set screws in the base of the radiation shield NOTE The adapter is retracted approximately to insure the sensor is not contacting the top plate of the solar radiation shield 2355 BELFORT instrument Proprietary Information NIA TOP PLATE OF THE r WARNING RADIATION SHIELD SEE INSTALLATION xw o INSTRUCTION PAGE RADIATION SHIELD NYAS TOWER PHILLIPS HEAD SCREW 3 PLACES BOLT LOCK WASHER FLAT WASHER 2 PLACES PROBE SENSOR JAM NUT CONNECTOR ASSEMBLY i DE tJ TT Ix PLASTIC SENSOR ADAPTER CONNECTOR ASSEMBLY Figure 12 Temperature Dew 36 Point Sensor BELFORT instrument Proprietary Information 7 11 INSTALLING
77. stem for public use The purpose of this manual is to ensure there is a mutual understanding of what is required to operate and maintain a commissioned AWOS system The required content of this manual is specified in FAA circular AC 150 5220 16C Section 12 d The following items should be covered Physical security of the facility Personnel to contact if a weather parameter is found to be out of tolerance or system maintenance is needed Posting of licenses and signs Notice to the FAA 27 BELFORT instrument Proprietary Information How to keep station logs and other technical reports and documentation Procedures to be followed for periodic scheduled maintenance or shutdown Procedures to be followed to freeze AWOS data in the archive file after an aircraft accident or incident Locations of AWOS components on the airport Copy ofthe signed MOU between the owner and the FAA The system owner should work closely with the FAA regional non federal facilities program manager to assure the content of this manual is agreed to prior to the commissioning inspection 4 3 PERFORMANCE TESTS AND INSTALLATION CHECKOUT Prior to the FAA commissioning inspection approved maintenance personnel should verify the functionality of the installation AII applicable operating requirement parameters identified in Chapter 4 of AC 150 5220 16C should be measured and documented to assure the system is performing within the tolerances specifie
78. strap Attach the tilt over tower ground wire and the Power Junction Box ground wires to the tower using the tapped hole in the lower section of tower and the screw provided Attach the tower ground wire to the earth ground system previously installed using a properly sized copper clamp 49 BELFORT instrument Proprietary Information 10 11 Dress the wiring harness high up on the installation by securing the exposed wiring to the tower with wire ties NOTE Be sure to secure the wires high enough to prevent them from being damaged by lawn mowers or weed eaters Keep all bend radii greater than 8 inches Inspect all connections and insure that they are installed correctly and securely AC wiring should be inspected to the following wiring schematic diagram OBSTRUCTION 6000 VIS SENSOR WHT GRY fy WHT SA CIRCUIT BREAKER ARRESTOR SOLA mT od SOLA Power Supply Power Supply SFLB 12 160 SFL6 12 100 gg Output OK OuputOK Pase beer amma 28 OPTIONAL BATTERY BACKU gt 5A CIRCUIT BRESKER GRY he mse 5 477 heir ned ce Lu ri zz id cl Br uri Paizissmulzt 55 GND BATTERY Figure 17 Basic AC Wiring Schematic 50 BELFORT instrument Proprietary Information TOWER HARHESS CIRCUIT BRE
79. surface The Belfort Instrument Company must be consulted to review the particular installation and provide a recommended mounting method 6 3 INSTALLATION OF TRUE NORTH MONUMENT As a further condition of the DigiWx sale the airport owner is charged with providing a certificate of site survey for field elevation and installation of a permanent true North marker positioned 100 150 feet North of the physical site where the tower will be located A concrete monument 5 inches square at the top 30 inches long buried in the ground so that 1 inch extends above ground level is available from Precast Concrete Sales Company 123 Route 303 P O Box 516 Valley Cottage NY 10989 Phone 845 268 4949 Fax 845 268 4376 Marker Part Number 21 2 or equivalent 64 LIGHTNING PROTECTION AND GROUNDING REQUIREMENTS Installation of the DigiWx tower must also include a lightning and grounding system This system consists of a 5 8 inch diameter x 6 foot aluminum lightning rod mounted to the tower affording a 45 degree cone of protection coupled through a bimetallic coupling to a 4 0 stranded bare copper down conductor to the site earth ground system The site earth ground system shall consist of 3 each 10 foot long inch diameter copper clad steel rods driven to a depth such that the tops of the rods are at least 18 inches below local grade The rods shall be positioned in an equilateral triangle with 20 foot sides and connected with 1 0 bare st
80. t confidential Providing this information is mandatory for anyone proposing construction or alteration that meets or exceeds the criteria contained in 14 CFR part 77 We estimate that the burden of this collection is an average 19 minutes per response An agency may not conduct or sponsor and a person is not required to respond to a collection of information unless R displays a currently valid OMB control number The OMB control number for this collection is 2120 0001 FAA Form 7460 1 2 99 Supersedes Previous Edition NSN 0052 00 012 0008 NOTICE OF PROPOSED CONSTRUCTION OR ALTERATION S77 13 Construction or alteration requiring notice a Except as provided in 77 15 each sponsor who proposes any of the following construction or alteration shall notify the Administrator in the form and manner prescribed in 877 17 1 Any construction or alteration of more than 200 feet in height above the ground level at its site 2 Any construction or alteration of greater height than an imaginary surface extending outward and upward at one of the following slopes i 100 to for a horizontal distance of 20 000 feet from the nearest point of the nearest runway of each airport specified in paragraph a 5 of this section with at least one runway more than 3 200 feet in actual length excluding heliports ii 50 to 1 for a horizontal distance of 10 000 feet from the nearest point of the nearest runway of each airport specified in paragraph a
81. the DigiWx AWOS in service mode by toggling the ALERT MESSAGE toggle switch located on the lower half of the hinged tower section six 6 times See Table 3 This will assure that pushing REFRESH on the HHDU will display instantaneous rather than averaged wind direction and true rather than magnetic information Remove tower securing bolts and tilt the tower until the cross arm is at a comfortable working height to access the wind direction sensor Secure it in that position by tying the rope around the base of the DigiWx tower refer to figure 23 Power on the DigiWx AWOS HHDU The word ALERT must now be displayed across the rectangular HHDU runway display Push the PAGE button and the message DigiWx AWOS being serviced must appear The Alert messages are programmed in the same order as they appear in Table 3 If an alert message other than message 6 is displayed consult the list of alert messages in Table 3 Toggle the tower switch an appropriate number of times until the DigiWx AWOS being serviced alert message 15 displayed For example if the alert message number 2 is displayed toggle the switch 4 times Position the wind vane so that it is vertical and parallel to the red pointer installed on the sensor body Secure the vane in that position by placing a rubber band around the tail of the direction vane and the transmitter antenna as shown in figure 27 2735 BELFORT instrument Proprietar
82. tion Do not perform DigiWx M AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Wind speed sensor Item 9 Three 3 M4 x 8 Socket head screws Item H1 P N 80022 3 mm Allen wrench End Cap Item 19 P N ZX1324U2 Three 3 hole plugs Item 27 PN ZX4491K42 INSTALLATION INSTRUCTIONS Reference Figure 10 Locate the wind speed sensor and remove the three 3 screws installed in the bottom of the sensor and discard Remove the knurled protective collar from the sensor connector flange and discard Route the wind speed sensor cable through the cutout in the top of the left side of the cross arm Carefully insert the keyed cable connector into the sensor and hand tighten completely Insert sensor with the cable attached through the cutout in the top of the cross arm and secure with three 3 Socket head screws Item H1 P N 80022 using the Allen wrench provided Insert the End Cap Item 27 into the end of the cross arm and tap into place Insert the three 3 hole plugs in the bottom of the cross arm to cover the screw access holes 231 BELFORT instrument Proprietary Information CROSS ARM LS WIND SPEED CABLE NOTE KEYED CONNECTOR HAND TIGHTEN REMOVE 3 SCREWS AND KNURLED PROTECTIVE COLLAR WIND SPEED
83. u bar and enter a short duration NOTAM advising users that maintenance activities are being performed following the instructions for entering NOTAM s described in section 4 2 2 6 ofthe DigiWx Operator Manual Verify that the test NOTAM expires at the date and time it was scheduled to expire 12 Select History from the display screen top line Menu 13 Verify that History data charts can be obtained in accordance with the instructions provided in the DigiWx Operator Manual section 4 2 2 1 62 BELFORT instrument Proprietary Information 9 3 DCP BAROMETRIC PRESSURE INSTALLATION VERIFICATION amp CALIBRATION SAFETY PRECAUTIONS Do not perform DigiWx amp AWOS maintenance tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly N PARTS AND TOOLS REQUIRED 1 Paro scientific model 760 16 portable pressure standard with current NIST traceable certification Notebook computer running ASOSDCP102 and RS232 cable DigiWx AWOS hand held display Socket wrench and 13 16 socket Eight 8 foot step ladder qa INSTRUCTIONS 1 At the DATU display terminal issue a advisory to alert users that DigiWx system is being serviced prior to beginning this maintenance tasks The NOTAM to be issued is DigiWx system being serviced do
84. udi ASSEMBLY vg pase i f TOGGLE SWITCH m 1 Figure 22 Typical DigiWx Tower Equipment Mounting Locations 64 BELFORT instrument Proprietary Information Figure 23 Securing the Tower for Maintenance 65 BELFORT instrument Proprietary Information 10 11 12 13 14 15 16 Power on the DigiWx amp AWOS hand held display The word ALERT must be displayed across the HHDU runway display Push the PAGE button and the message DigiWx AWOS being serviced must appear The Alert messages are programmed in the same order as they appear in Table 3 alert message other than message 6 is displayed consult the list of alert messages in Table 3 You will need to toggle the tower switch an appropriate number of times until the DigiWx AWOS being serviced alert message is displayed For example if the alert message number 2 is displayed toggle the switch 4 times Verify accuracy of pressure sensor data Place the portable pressure standard on the ladder at the same height 6 inches as the DCP Turn the standard on and allow it to stabilize for five 5 minutes Check for low battery indication a decimal point will appear between each digit of the displayed pressure when the battery is low If the system has a v
85. ument Proprietary Information 7 10 INSTALLING TEMPERATURE DEW POINT SENSOR E u poor Ne SAFETY PRECAUTIONS Before starting any installation work ensure that the power circuit breaker is open Do not perform DigiWx AWOS installation tasks during a thunderstorm Use extreme caution when lowering the tilt over tower whenever ice or snow has accumulated on the tower cross arm or the sensors The extra weight may cause the tower to fall over rapidly PARTS AND TOOLS REQUIRED Temperature dew point radiation shield Item 13 Temperature dew point sensor Item 14 Phillips head screwdriver Two 4 20 x 94 bolts with washers Item H2 P N 80023 Socket wrench and 34 socket INSTALLATION INSTRUCTIONS Locate the temperature dew point radiation shield Align bolt holes in the sensor mounting bracket with the drilled and tapped holes in the right hand side of the tilt over tower as shown in Figure 12 Secure the radiation shield to the tilt over tower using two 2 bolts and washers Item H2 P N 80023 provided Being very careful to observe the keyed connector pin orientation insert the sensor into the connector located on the end of the temperature dew point cable See Figure 12 Loosen the three 3 Phillips head screws on the bottom of the sensor s radiation shield and remove the plastic sensor adapter Loosen the jam nut on top ofthe plastic sensor adapter a few turns Insert the sensor and sensor connector a
86. ut Display Acquisition Terminal Unit DATU Checkout ES O oo oNN NWR Re 9 3 DCP Barometric Pressure Installation Verification amp Calibration 61 9 4 Temperature Humidity and Dew Point Installation Verification 66 9 5 6000 Visibility Sensor Verification and Calibration 67 9 6 Wind Direction Sensor Installation Verification 71 9 7 Wind Speed Sensor Installation Verification 74 10 0 System Alignment and Checkout 75 11 0 Customer Support and 51 75 Tables Table 1 Contisurations Avallable uuu uay 5 Table 2 Hardware amp Parts n a t aa aq 15 Table 3 DieiWx Alert Messe es 61 Figures amp Illustrations Figure 1 Interior amp Exterior DigiWx Components 4 Figure 2 Typical Alignment of Tower Mounting 11 Figure 3 Installation of Earth Grounding System sse 13 Figure 4 Photo of DATU at Operational 14 Figure 5 Tilt over Tower Assembly Lower Portion 19 Figure 5a Tilt over Tower Assembly Upper Portion
87. values This file must be kept current and be available for FAA review at any time 5 0 QUALIFICATION REQUIREMENTS FOR INSTALLATION AND MAINTENANCE PERSONNEL Installation and maintenance of the DigiWx AWOS system must be performed by qualified personnel Order 6700 20A contains the qualification requirements for maintenance personnel who maintain Non Federal facilities Belfort Instrument trained technician or a technician verified by the FAA may install and maintain the system AWOS maintenance program is the responsibility of the system owner Installation and maintenance personnel should have the special knowledge and skills needed to maintain a DigiWx AWOS facility These skills can be obtained by completing the Belfort Instrument DigiWx Installation and Maintenance Training Program course and successfully passing the performance examination Owners or maintenance technicians interested in scheduling this training should contact the Belfort Instrument DigiWx program manager at 1 800 937 2353 to schedule this training In addition the FAA will may give a practical exam to any DigiWx technician to assure the technician is qualified to perform system maintenance 6 0 SELECTION OF SITE LOCATION The site for installing the DigiWx AWOS should be carefully selected in accordance with FAA Order 6560 20B There are several factors that will impact the cost of installation and maintenance and could impact system
88. would be shielded by existing structures of a permanent and substantial character or by natural terrain or topographic features of equal or greater height and would be located in the congested area of a city town or settlement where itis evident beyond all reasonable doubt that the structure so shielded will not adversely affect safety in air navigation b Any antenna structure of 20 feet or less in height except one that would increas the height of another antenna structure c Any air navigation facility airport visual approach or landing aid aircraft arresting device or meteorological device of a type approved by the Administrator or an appropriate military service on military airports the location and height of which is fixet by Its functional purpose d Any construction or alteration for which notice is required by any other FAA regulation 877 17 Form and time of notice a Each person who is required to notify the Administrator under 877 13 a shall sent one executed form set of FAA Form 7460 1 Notice of Proposed Construction or Alteration to the Manager Air Traffic Division FAA Regional Office having jurisdiction over the area within which the construction or alteration will be located Copies of FAA Form 7460 1 may be obtained from the headquarters of the Federal Aviation Administration and the regional offices b The notice required under 877 13 a 1 through 4 must be submitted at least 30 days before the earlier of
89. y Information 11 12 13 14 15 16 WIND DIRECTION SENSOR gt RED POINTER k amp gt CROSS ARM P LAU RUBBER BAND z P Figure 27 Wind Direction Vane Alignment Press the REFRESH button on the DigiWx AWOS HHDU and verify that the wind direction is 360 If the direction does not read 360 verify that the vane is aligned parallel with the red pointer and parallel to the long axis of the cross arm If adjustments need to be made proceed with Steps 7 thru 14 below Remove the three 3 red plastic plugs and loosen the three 3 socket head screws holding the direction sensor to the cross arm Rotate the sensor bottle in the direction required to obtain a reading of 360 Wait for five 5 seconds press the REFRESH button on the HHDU and read the wind direction Repeat this process until a reading of 360 is obtained Tighten the three 3 socket head screws securely using the supplied Allen wrench Press the REFRESH button again to verify that the wind direction still reads 360 Remove the rubber band from the vane and antenna Reinstall the three 3 red plastic plugs into the three 3 sensor mounting access holes in the cross arm Locate the True North Monument Using a stepladder sight along the folded tower section to assure it points to the True North Monument Rotate the direction vane 360 and verify it is free to turn with no rough spots in rotati

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