ADB Safegate 8340 Product Manual

Cloud height indicator laser ceilometer

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Model 8340

Cloud Height Indicator Laser

Ceilometer

PRODUCT MANUAL

8340-F/Rev K

Table of Contents

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Summary of Contents for ADB Safegate 8340

Page 1 Model 8340 Cloud Height Indicator Laser Ceilometer PRODUCT MANUAL 8340-F/Rev K...
Page 2: Disclaimer / Standard Warranty
Material Handling Precautions and Storage precautions that must be followed. ADB SAFEGATE reserves the right to examine goods upon which a claim is made. Said goods must be presented in the same condition as when the defect therein was discovered. ADB SAFEGATE furthers reserves the right to require the return of such goods to establish any claim.
Page 3: Table Of Contents
2.3.2 Data Acquisition Board ��14 2.4 Fault Detection ��16 3. Data Communication ..............................17 3.1 8340 Native Format ��17 3.2 8340 Sky Condition Format ��20 3.3 8329 Format ��21 4. Unpacking And Installation ............................22 4.1 Unpacking ��22 4.2 Installation ��22 4.2.1 Mechanical Mounting ��23...
Page 4 8.2.2 Optical Module (Figure 16) ��36 8.2.3 DIN Rail Components ��36 9. Firmware Updates ................................37 10. Specifications ................................38 11. Warranty ..................................40 12. Drawings ..................................41 CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 5 Corrected 8329 mode baud rate 2011 Oct 4 Enhanced description of grounding requirements during installation. 2016 May 26 Updated 8340-F-019/8340-G-019 wiring diagrams to add wire colors 2021 Sept 29 Removed ASOS interface and associated commands 2025 Apr 1 ADB SAFEGATE (ECP#ADBSG-0001) CODE&...
Page 6 Failure to do so may damage the system. If fuses blow repeatedly, a serious condition is indicated. Equatorial Filter An equatorial filter that prevents damage to the laser from exposure to direct sunlight is installed on every 8340 Ceilometer. This filter causes no degradation in performance.
Page 7: Overview
Model 8340 Ceilometer 1. Overview The Model 8340 Laser Ceilometer measures the height and thickness of up to four cloud layers simultaneously to a distance of 40,000 vertical feet. It can also report vertical visibility. Its precision makes it ideal for applications requiring the highest performance and reliability, such as aviation and meteorological studies.
Page 8: Accessories
Model 8340 Ceilometer 1.2 Accessories The following accessories are available for the Model 8340 Ceilometer. Part Number Description 83405-00 Battery Backup Kit 83406-00 100–120 V AC Heater/Blower for use with 8340-F 83407-00 200–240 V AC Heater/Blower for use with 8340-G...
Page 9: Theory Of Operation
In other words, that distance where 95% of the initial laser beam has been extinguished by scattering. The 8340 works in accordance with the principal of optical radar, or LIDAR. A laser pulse is emitted at a maximum rate of 1 kHz vertically into the atmosphere, and the resulting backscattering is analyzed for water density.
Page 10: Functional Description
Model 8340 Ceilometer 2.2.1 Functional Description The 8340 Ceilometer is designed with interchangeable modules to make it straightforward to maintain in the field (see Figure 1). Extensive internal self-testing identifies problems and provides detailed information concerning the nature of the problem, including the specific module with which the problem is associated.
Page 11: Modules
Model 8340 Ceilometer 2.3 Modules The Model 8340 Ceilometer is made up of the following major modules. • The Optical Module (M403434-01) contains the laser, the receiver, and the dirty window detector electronics, as well as the condenser lenses, interference filter, and high voltage switching regulators.
Page 12 IRLEDs that are used to determine when the windows need cleaning, a receiver test LED, and a temperature probe used to regulate the AC heaters. Figure 3. Window Condition Monitoring Board CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 13 FAST AND SLOW BLINKING together implies a warning level fault and outputting laser radiation BATTERY STATUS ON when DC power is good (green) DIRTY WINDOW ON when windows need cleaning WARNING (yellow) Table 1. Ceilometer Status LEDs Meaning CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 14: Data Acquisition Board
The basic system operating parameters are shown below, along with the available settings and default settings. Parameter Possible Settings Default Setting Output Interval 30, 60, 120 sec. 30 sec. ADB Safegate 8340 format; 40,000', auto ADB Safegate 8340 format; 40,000', auto Data Format output output Control Local, remote Local Table 2.
Page 15 Fault condition; must be corrected to return Ceilometer to operation Warning of deteriorating operation; Ceilometer will continue operating but should WARNING be checked as soon as possible Table 3. Data Acquisition Board LEDs CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 16: Fault Detection
Warning to a Failure. When a fault is detected, a message is output at every reporting interval. The message will be repeated until the fault is corrected. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 17: Data Communication
Table 5. 8340 Ceilometer Communication Settings Data Format The 8340 Native Data format is output from the Ceilometer in a data string consisting of eight fields. Output Data String TR1 AAAAAA HHHHH TTTT HHHHH TTTT HHHHH TTTT HHHHH TTTT VVVV RRRRR...
Page 18 Status message (see Troubleshooting for a definition of the status message) HHHHH Cloud height in feet TTTT Penetration depth in feet VVVV Vertical visibility RRRRR Range setting in feet CCCC CRC 16 CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 19 Model 8340 Ceilometer CHIIDN? <ADDR><CR><LF> – Identification Poll Command Output Data String ADB Safegate 8340/8340 Ceilometer X.YY CCCC Character Sequence Meaning X.YY Ceilometer version CCCC CRC 16 CHICONFIG<ADDR><CR><LF> – Configuration Request Poll Command • Returns the active configuration that is stored in flash followed by a CRC 16...
Page 20: 8340 Sky Condition Format
Model 8340 Ceilometer 3.2 8340 Sky Condition Format The 8340 Sky Condition Format provides real-time reports of cloud bases and depths as well as the Sky Condition based on the NWS ASOS Sky Condition algorithm. The Sky Condition algorithm uses a weighted average of 30-second cloud hit reports over a 10-minute period to determine the cloud cover.
Page 21: 8329 Format
3.3 8329 Format The Model 8340 Ceilometer may replace an Model 8329 Ceilometer in an existing AWOS. The 8329 Format enables the Model 8340 Ceilometer to continue report data using the 8329 format used by the Model 8329 Ceilometer without making changes to the AWOS.
Page 22: Unpacking And Installation
4.2 Installation The 8340 must be firmly mounted to a vertical 2½" pipe for proper operation. Any movement of the 8340 due to wind or other causes will reduce the accuracy of the Ceilometer. The Ceilometer should be installed in an open area away from trees, buildings, or other obstructions.
Page 23: Mechanical Mounting
Drill and tap a ¼ -20 hole in the mast. Install a grounding clamp in the hole. Connect one end of a length of ground cable (4 AWG multi-strand insulated wire, available from ADB Safegate as P/N T605000), to the grounding clamp on the mast.
Page 24: Ceilometer Power Connection
Connect the power cord’s circular connector to the INPUT POWER connector on the underside of the Ceilometer (see Figure 8). Connect the other (unterminated) end of the cable to a suitable AC source according to wiring diagram 8340-F-019 or 8340-G-019.
Page 25: Optional Heater/Blower Power Connection
Connect the other (unterminated) end of the cable to the data collection unit (Model 1190 DCP in AWOS installations) according to wiring diagram 8340-F-019 or 8340-G-019. If connecting to the AWOS DCP , refer to the Model 1190 Data Collection Platform User’s Manual for connection instructions at the DCP .
Page 26 The desiccant may also be placed in the lower right area of the Ceilometer enclosure with the indicator paper above the desiccant to be readily visible. Figure 10. Desiccant Installation Close and fasten the enclosure door. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 27: Operation
From a remote location, the output message can be checked to verify proper operation. The status word in the output message should show the same indications as the Status LED described above. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 28: Maintenance
Remove and discard the plastic bag, then replace the desiccant package in its tie-wrap holder (see Figure 10). CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 29: Blower Housing Cleaning - Annually
Install a properly rated fuse into the socket from the left side and press into place. 4. Close the housing cover, ensuring it snaps shut. Figure 12. Fuse Replacement CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 30: Troubleshooting
000008 optical module temperature low 000004 laser temperature control (Peltier device) failure 000002 laser temperature low 000001 laser temperature high Table 12. Ceilometer Status Codes CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 31 If both the optical module and Data Acquisition Board indicate failures, disconnect the optical module’s three cables from the Data Acquisition Board to ensure it is not causing the Data Acquisition Board to fail (see Figure 14). CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 32 A/D (on the Data Acquisition Board) or the temperature probe (in the optical module). In such cases, the best course is to exchange the most likely module first (generally the optical module). CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 33: Removal And Replacement
Disconnect eight cables from the Data Acquisition Board. Remove the six screws at the corners and sides of the board. 4. Remove the Data Acquisition Board from the unit. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 34: Optical Module
Lift the module carefully up and out of the enclosure, paying particular attention to the Window Condition PCB mounted at the top of the Optical Module on the receiver side. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 35: Din Rail Components
While depressing the tab, grasp the Circuit Breaker near the bottom and pull out to release the bottom DIN rail clip from the rail. 4. Slide the Circuit Breaker up to remove it from the rail. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 36: Replacing Modules
Lower the bottom of the Circuit Breaker onto the DIN rail and press until the lower DIN rail clip snaps into place. Connect the wires disconnected during module removal to the screw terminals on the Circuit Breaker and tighten. Refer to the wiring diagram (M403435-04-019) as needed. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 37: Firmware Updates
Model 8340 Ceilometer 9. Firmware Updates The Ceilometer Firmware Update Tool User’s Manual (M595167-00-001) describes the tools and procedures for updating the Model 8340 Ceilometer firmware. CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 38: Specifications
Serial Port Parameter Setting 8-N-1 (8 data bits, no parity, 1 stop bit) Serial Connector Conxall® Mini-Con-X® 7280-5SG-300 Field Connector Battery Backup Ceilometer electronics only, built-in charger CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 39 (67 cm × 51 cm × 41 cm) Ceilometer 19.5 kg (43 lb) Weight Optional Heater/Blower 5.5 kg (12 lb) Ceilometer 27.3 kg (60 lb) Shipping Weight Optional Heater/Blower 8 kg (18 lb) CODE& Edition UM-5055, Rev. 1.1.26, 2024/11/13 125 © ADB SAFEGATE, All Rights Reserved...
Page 40: Warranty
Model 8340 Ceilometer 11. Warranty Unless specified otherwise, ADB Safegate (the Company) warrants its products to be free from defects in material and workmanship under normal use and service for one year from date of shipment, subject to the following conditions: The obligation of the Company under this warranty is limited to repairing or replacing items or parts which have been returned to the Company and which upon examination are disclosed, to the Company’s satisfaction, to have been...
Page 41: Installation Drawings
Model 8340 Ceilometer 12. Drawings The following pages contain drawings to help in the installation, use, and maintenance of this instrument. Schematics 8340-F-019 8340-F Top Level Wiring Diagram 8340-G-019 8340-G Top Level Wiring Diagram M403437-04-019 Heater/Blower Wiring Diagram (100–120 V AC) M403438-04-019 M403438-04-019 Heater/Blower Wiring Diagram (200–240 V AC) M403434-01-019...
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Page 52: Declaration Of Conformity
CEILOMETER 25K + BLOWER (200-240VAC) CEILOMETER 40K + BLOWER (100-120VAC) CEILOMETER 40K + BLOWER (200-240VAC) Model Numbers 8339-F + 83396, 8339-G + 83397 8340-F + 83396, 8340-G + 83397 Test Report Number ALL-0502-4469-SAFETY Date of Testing 2005, September 22 - 23 Manufactured by All Weather, Inc.
Page 53 CEILOMETER 25K + BLOWER (100-120VAC) CEILOMETER 25K + BLOWER (200-240VAC) CEILOMETER 40K + BLOWER (100-120VAC) CEILOMETER 40K + BLOWER (200-240VAC) Model Numbers 8339-F + 83396, 8339-G + 83397, 8340-F + 83396, 8340-G + 83397 Test Report Number ALL-0502-4468-CE Date of Testing 2005, September 20...
Page 54 Optimizing Airside Operations From approach to take-off SMARTER. BETTER. NOW. w w w . a d b s a f e g a t e . c o m...