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Vaisala CL31 User Manual
Summary of CL31
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Vaisala ceilometer cl31 u ser ' s g uide m210482en-b october 2004.
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Published by vaisala oyj phone (int.): +358 9 8949 1 p.O. Box 26 fax: +358 9 8949 2227 fin-00421 helsinki finland visit our internet pages at http://www.Vaisala.Com/ © vaisala 2004 no part of this manual may be reproduced in any form or by any means, electronic or mechanical (including photocopying)...
Page 3: Table of Contents
________________________________________________________________________________ vaisala ________________________________________________________________________ 3 table of contents chapter 1 general information............................................................................ 7 about this...
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User's guide ______________________________________________________________________ 4 ___________________________________________________________________ m210482en-b user commands .....................................................................39 data messages......................................
Page 5: List of Figures
________________________________________________________________________________ vaisala ________________________________________________________________________ 5 chapter 8 repair ........................................................................................................ 91 replacing w...
Page 6: List of Tables
User's guide ______________________________________________________________________ 6 ___________________________________________________________________ m210482en-b figure 17 cl31 .........................................................................................96 figure 18 main components o...
Page 7: General Information
Chapter 1 ________________________________________________________ general information vaisala ________________________________________________________________________ 7 chapter 1 general information this chapter provides general notes for the product. About this manual this manual provides informat...
Page 8: Related Manuals
User's guide ______________________________________________________________________ 8 ___________________________________________________________________ m210482en-b - chapter 9, technical data, provides the technical data of the product. - index related manuals table 1 related manuals manual code m...
Page 9: Warning
Chapter 1 ________________________________________________________ general information vaisala ________________________________________________________________________ 9 warning failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of d...
Page 10: Warning
User's guide ______________________________________________________________________ 10 __________________________________________________________________ m210482en-b warning operating personnel must not remove instrument covers. Component replacement and internal adjustments must be made by qualifie...
Page 11: Warning
Chapter 1 ________________________________________________________ general information vaisala _______________________________________________________________________ 11 the device is equipped with the following label: ceilometer cl31 is intended for operation in an area restricted from public acces...
Page 12: Recycling
User's guide ______________________________________________________________________ 12 __________________________________________________________________ m210482en-b the product by delivering electrostatic discharges when touching, removing, or inserting any objects inside the equipment housing. To ...
Page 13: Product Overview
Chapter 2 __________________________________________________________ product overview vaisala _______________________________________________________________________ 13 chapter 2 product overview this chapter introduces the features, advantages, and the product nomenclature. Introduction to vaisala ...
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User's guide ______________________________________________________________________ 14 __________________________________________________________________ m210482en-b 0406-052 figure 1 vaisala ceilometer cl31 the following numbers refer to figure 1 above: 1 = shield 2 = measurement unit.
Page 15: Product Nomenclature
Chapter 2 __________________________________________________________ product overview vaisala _______________________________________________________________________ 15 product nomenclature table 2 vaisala ceilometer cl31 main parts code common name description clo311 optics unit clw311 window assem...
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User's guide ______________________________________________________________________ 16 __________________________________________________________________ m210482en-b 0311-057 figure 2 ceilometer cl31 main parts.
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Chapter 2 __________________________________________________________ product overview vaisala _______________________________________________________________________ 17 the following numbers refer to figure 2 on page 16: 1 = internal heater clh311 2 = clo311 optics unit 3 = ceilometer receiver clr31...
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User's guide ______________________________________________________________________ 18 __________________________________________________________________ m210482en-b this page intentionally left blank..
Page 19: Installation
Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 19 chapter 3 installation this chapter provides you with information that is intended to help you install this product. Installation ...
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User's guide ______________________________________________________________________ 20 __________________________________________________________________ m210482en-b 0311-054 figure 3 measurement unit handle if mishandling occurs during transit or installation, the instrument should be returned to a...
Page 21: Note
Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 21 note in case cl31 is used to replace another ceilometer (ct25k, ct12k, ld40, ld25, or ld12) the existing foundation and foundation...
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User's guide ______________________________________________________________________ 22 __________________________________________________________________ m210482en-b there are two alternative ways to create a concrete foundation for ceilometer cl31. You can either cast a new concrete foundation or u...
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Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 23 to mount ceilometer cl31, proceed as follows: 1. Remove the measurement unit from the shield. To do this, loosen the three attachm...
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User's guide ______________________________________________________________________ 24 __________________________________________________________________ m210482en-b 0311-056 figure 6 mounting the shield.
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Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 25 connecting the external cables all external connectors to the measurement unit are located at the bottom front edge as seen from t...
Page 26: Note
User's guide ______________________________________________________________________ 26 __________________________________________________________________ m210482en-b the wire connections and cable glands of the optional termination box are presented in the termination box user's guide (refer to sect...
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Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 27 default settings for the data line modem connection modem mode v.22bis bit rate 2400 data bits 8 stop bits 1 parity none 0311-061 ...
Page 28: Grounding
User's guide ______________________________________________________________________ 28 __________________________________________________________________ m210482en-b 0311-062 figure 10 data line rs-232 connection default settings for the data line rs-232 connection bit rate 19200 data bits 8 stop bi...
Page 29: Using The Tilt Feature
Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 29 maintenance terminal connection any terminal or pc with a serial interface and a terminal emulation program can be used for operat...
Page 30: Warning
User's guide ______________________________________________________________________ 30 __________________________________________________________________ m210482en-b the tilt feature provides the following advantages: - protection in heavy weather conditions: using a tilt angle of 12 degrees protect...
Page 31: Note
Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 31 note do not attempt to carry a fully assembled unit alone, preferably, lift the measurement unit from the shield. The two main par...
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User's guide ______________________________________________________________________ 32 __________________________________________________________________ m210482en-b 0311-058 figure 11 subassembly interconnections.
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Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 33 the following numbers refer to figure 11 on page 32: 1 = data line connection to ac power clp311 2 = coaxial cable connection to c...
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User's guide ______________________________________________________________________ 34 __________________________________________________________________ m210482en-b 0311-059 figure 13 ceilometer engine board cle311 settings for normal operation the switch settings for normal operation are as follow...
Page 35: Factory Settings of User
Chapter 3 _______________________________________________________________ installation vaisala _______________________________________________________________________ 35 during the factory alignment procedure, the optical adjustments are carefully carried out to fulfill the requirements and specific...
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User's guide ______________________________________________________________________ 36 __________________________________________________________________ m210482en-b this page intentionally left blank..
Page 37: Operation
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 37 chapter 4 operation this chapter contains information that is needed to operate this product. Operation modes there are two operatio...
Page 38: Note
User's guide ______________________________________________________________________ 38 __________________________________________________________________ m210482en-b the same commands, operations, and messages operate through any of the lines, and the following description applies to both of them. T...
Page 39: User Commands
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 39 0406-066 figure 15 open and closed port user commands user commands are described in table 5 on page 40. User commands are accessibl...
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User's guide ______________________________________________________________________ 40 __________________________________________________________________ m210482en-b table 5 user level commands command description close closes a user interface. Releases a port for message transmission. Get diag cont...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 41 command description set data_port parity 7o1 data serial port settings. Set data_port parity 8n1 data serial port settings. Set defa...
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User's guide ______________________________________________________________________ 42 __________________________________________________________________ m210482en-b command description set message transmission periodic sets periodic message transmission. Set message transmission request sets messag...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 43 table 6 advanced level commands command description back go back one security level. Go back to the user level commands. Get failure...
Page 44: Data Messages
User's guide ______________________________________________________________________ 44 __________________________________________________________________ m210482en-b command description set message profile noise_h2 off range gates data is range normalized, if backscatter is contained. Set message un...
Page 45: Note
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 45 resolution (standard mode). If needed, users can change into the 5 m resolution (high resolution) by typing the following advanced l...
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User's guide ______________________________________________________________________ 46 __________________________________________________________________ m210482en-b for data lines with low bandwidth, there is a short version of each message. In the short version of message no.1, lines 3 and 4 are l...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 47 where 1 = character for subclasses of message 1 = 10 m x 770 samples, range 7700 m (msg1_10x770) 2 = 20 m x 385 samples, range 7700 ...
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User's guide ______________________________________________________________________ 48 __________________________________________________________________ m210482en-b fedc ba98 7654 = alarm (a), warning (w), and internal status (s) information. Each character is a hexadecimal representation of four b...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 49 b08 (0000 0000 0100) (spare) (s) 5 b07 (0000 0000 0080) units are meters if on, else feet (s) b06 (0000 0000 0040) manual blower con...
Page 50: Note
User's guide ______________________________________________________________________ 50 __________________________________________________________________ m210482en-b the reporting resolution is 10 m or 100 ft depending on the selection. If the cloud amount is zero, the corresponding layer height is ...
Page 51: Note
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 51 the line ends with carriage return and line feed characters. Note this line is omitted if the message subclass is 5. 5th line (6th l...
Page 52: Cl31 Status Message
User's guide ______________________________________________________________________ 52 __________________________________________________________________ m210482en-b the calculation of the checksum starts after the start-of-heading character and ends after the end-of-text character, that is, the fir...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 53 message interpretation: 1st line the first line of the cl31 status message is structurally identical to the first line of the cl31 d...
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User's guide ______________________________________________________________________ 54 __________________________________________________________________ m210482en-b lines 12 ... 16 lines 12 to 16 display the transmitter and receiver settings of cl31. Transmitter pulse len = pulse length, long in no...
Page 55: Ct12K Messages
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 55 lines 20 ... 23 lines 20 and 23 display temperature values in degrees centigrade. These values are used for the automatic control of...
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User's guide ______________________________________________________________________ 56 __________________________________________________________________ m210482en-b an example of digital message no.2 is presented below: ↵ 10 04200 00150 ///// ///// 0000011010 ↵ 2 0 0.08 36 0 100 23.9 0.00 0 0 ↵ 0dd...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 57 example: nsb h 1 h 1 h 1 h 1 h 1 t 1 t 1 t 1 t 1 t 1 h 2 h 2 h 2 h 2 h 2 t 2 t 2 t 2 t 2 t 2 s 1 s 2 s 3 s 4 s 5 s 6 s 7 s 8 s 9 s 1...
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User's guide ______________________________________________________________________ 58 __________________________________________________________________ m210482en-b 3rd line the second line of the message is status line 2. Example: g f n.Nn sum iin las tlx of.Fs xx pp ↵ where g = 0 low gain 2 high ...
Page 59: Ct12K Digital Message No. 3
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 59 data values are presented for each 50 ft range gate. The height of the first value in the line in thousands of feet. Two digits, a l...
Page 60: Ct25K Data Messages
User's guide ______________________________________________________________________ 60 __________________________________________________________________ m210482en-b 3rd line the second line of the message is a backscatter data line. Example: d 1 d 2 d 3 d 4 ........................D 64 ↵ where d = ...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 61 the transmission time and size is the following: 0.18 s at 2400 bps (10-bit char.) 10.6 kbytes/h, 253 kbytes/d, 7.6 mbytes/mo. At 4 ...
Page 62: Ct25K Data Message No. 6
User's guide ______________________________________________________________________ 62 __________________________________________________________________ m210482en-b d: b23 (0080 0000) window contaminated (w) b22 (0040 0000) battery low (w) b21 (0020 0000) transmitter expire warning (w) b20 (0010 00...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 63 the transmission time and size is the following: total 75 characters => 0.31 s at 2400 bps (10 bit char.) => 18.0 kbytes/h, 432 kbyt...
Page 64: Ct25Kam Data Messages
User's guide ______________________________________________________________________ 64 __________________________________________________________________ m210482en-b ct25kam data messages ceilometer cl31 also includes two ceilometer ct25kam data messages. These are data message no. 60 and data messa...
Page 65: Note
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 65 an example of the 'x1ta' telegram and a message interpretation are presented below: ☺ x1ta_8_015_00.00.00_00:00_00875_11150_nodet_01...
Page 66: Telegram Structure Remarks
User's guide ______________________________________________________________________ 66 __________________________________________________________________ m210482en-b telegram structure remarks a. Spaces (20 hex) always appear with the following bytes: 5, 7, 11, 20, 26, 32, 38, 44, 49, 54, 59, 65, 71...
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Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 67 table 9 error group definition error group byte no. Description 1 83 engine board and voltages 2 84 light path, receiver saturation ...
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User's guide ______________________________________________________________________ 68 __________________________________________________________________ m210482en-b table 13 error group 4 (byte 86) error code description 0 transmitter ok 1 transmitter expires (laser power low) (w) 2 transmitter fai...
Page 69: Checksum Calculation
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 69 checksum calculation the checksum of a data or a command telegram is calculated by computing the sum of all signs (alphanumerical si...
Page 70: Manual Message
User's guide ______________________________________________________________________ 70 __________________________________________________________________ m210482en-b manual message the ceilometer can be set to transmit user defined cloud heights and status information. The user can set a cloud messa...
Page 71: Note
Chapter 4 ________________________________________________________________ operation vaisala _______________________________________________________________________ 71 returning to the normal autosend mode is done using the following command: ceilo > set message transmission periodic the polling str...
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User's guide ______________________________________________________________________ 72 __________________________________________________________________ m210482en-b byte example description this case --> 1 7-17 p---------- command indicator --> p (polling), byte 8-17 not used and filled with '-' 18...
Page 73: Functional Description
Chapter 5 ______________________________________________________ functional description vaisala _______________________________________________________________________ 73 chapter 5 functional description this chapter describes the functionality of the product. Theory of operation basic principle of ...
Page 74: Practical Measurement Signal
User's guide ______________________________________________________________________ 74 __________________________________________________________________ m210482en-b practical measurement signal generally, particles at all heights backscatter light, and so the actual return signal may look like that...
Page 75: Return Signal Strength
Chapter 5 ______________________________________________________ functional description vaisala _______________________________________________________________________ 75 return signal strength the instantaneous return signal strength is in general form (the lidar equation): ∫ ′ ′ − ⋅ ⋅ ⋅ ⋅ = z z d ...
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User's guide ______________________________________________________________________ 76 __________________________________________________________________ m210482en-b obvious that the denser a cloud is, the stronger the reflection will be. The relationship can be expressed as follows: ß(z) = k·σ(z) w...
Page 77: Extinction Normalization and
Chapter 5 ______________________________________________________ functional description vaisala _______________________________________________________________________ 77 extinction normalization and vertical visibility any fog, precipitation, or similar obstruction to vision between the ground and ...
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User's guide ______________________________________________________________________ 78 __________________________________________________________________ m210482en-b ceilometer cl31 uses a contrast threshold value which, through many tests, has been found to give vertical visibility values closest t...
Page 79: Maintenance
Chapter 6 ______________________________________________________________ maintenance vaisala _______________________________________________________________________ 79 chapter 6 maintenance this chapter provides information that is needed in the basic maintenance of the product. Periodic maintenance...
Page 80: Window Cleaning
User's guide ______________________________________________________________________ 80 __________________________________________________________________ m210482en-b repair and service must be done according to the instructions in chapter 7, troubleshooting, on page 83 and chapter 8, repair, on page...
Page 81: Note
Chapter 6 ______________________________________________________________ maintenance vaisala _______________________________________________________________________ 81 to calibrate, do the following: 1. Make sure that the window is cleaned. 2. Then open the command line and enter the advanced level ...
Page 82: Storage
User's guide ______________________________________________________________________ 82 __________________________________________________________________ m210482en-b storage have caps on all external connectors if stored unpacked for extended times in an unconditioned area. Keep the measurement unit...
Page 83: Troubleshooting
Chapter 7 ___________________________________________________________ troubleshooting vaisala _______________________________________________________________________ 83 chapter 7 troubleshooting this chapter describes common problems, their probable causes and remedies, and gives the contact informa...
Page 84: Equipment
User's guide ______________________________________________________________________ 84 __________________________________________________________________ m210482en-b accessing the diagnostic information during normal operation, cl31 continuously monitors its internal status and regularly checks the ...
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Chapter 7 ___________________________________________________________ troubleshooting vaisala _______________________________________________________________________ 85 3. Connect the maintenance terminal to the maintenance port at the bottom of cl31. Turn on both cl31 and the maintenance terminal. ...
Page 86: Note
User's guide ______________________________________________________________________ 86 __________________________________________________________________ m210482en-b the sub unit that is suspected to be faulty. In this example, it is the ceilometer transmitter clt311. 7. Wait until the 3-minute blow...
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Chapter 7 ___________________________________________________________ troubleshooting vaisala _______________________________________________________________________ 87 status message info reason instructions window contamination warning (continuous). Bird droppings, leaves, dust etc. Have contamina...
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User's guide ______________________________________________________________________ 88 __________________________________________________________________ m210482en-b table 19 alarms problem reason instructions transmitter shut-off alarm (laser temperature > 85°c) direct sunlight has heated the laser...
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Chapter 7 ___________________________________________________________ troubleshooting vaisala _______________________________________________________________________ 89 table 20 miscellaneous problems problem reason instructions cl31 does not start, no leds are lit power is not connected. Check that...
Page 90: Technical Support
User's guide ______________________________________________________________________ 90 __________________________________________________________________ m210482en-b technical support for technical questions, contact the vaisala technical support: e-mail helpdesk@vaisala.Com phone (int.) +358 9 8949...
Page 91: Repair
Chapter 8 ___________________________________________________________________ repair vaisala _______________________________________________________________________ 91 chapter 8 repair this chapter explains how to remove and replace different parts of vaisala ceilometer cl31. Replacing window assemb...
Page 92: Note
User's guide ______________________________________________________________________ 92 __________________________________________________________________ m210482en-b 3. Loosen the 12 screws on the frame of the window and remove the window by lifting it out with the screws attached. Also remove any p...
Page 93: Clt311
Chapter 8 ___________________________________________________________________ repair vaisala _______________________________________________________________________ 93 replacing ceilometer laser transmitter clt311 warning ceilometer transmitter clt311 emits invisible laser radiation, which is harmfu...
Page 94: Caution
User's guide ______________________________________________________________________ 94 __________________________________________________________________ m210482en-b 4. To detach the transmitter, loosen the transmitter ring by turning it to the right. If necessary, you can use a 2.5-mm allen key as ...
Page 95
Chapter 8 ___________________________________________________________________ repair vaisala _______________________________________________________________________ 95 3. Detach the coaxial cable from the receiver. Also detach the receiver ribbon cable from ceilometer engine board cle311. 4. To deta...
Page 96
User's guide ______________________________________________________________________ 96 __________________________________________________________________ m210482en-b 0406-056 figure 17 cl31 the following numbers refer to figure 17 on page 96. 1 = internal heater clh311 2 = ceilometer receiver clr311...
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Chapter 8 ___________________________________________________________________ repair vaisala _______________________________________________________________________ 97 the following numbers refer to figure 17 on page 96. 10 = ac power cables 11 = ceilometer transmitter clt311 12 = no-break battery 4...
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User's guide ______________________________________________________________________ 98 __________________________________________________________________ m210482en-b 0311-057 figure 18 main components of ceilometer cl31.
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Chapter 8 ___________________________________________________________________ repair vaisala _______________________________________________________________________ 99 the following numbers refer to figure 18 on page 98: 1 = internal heater clh311 2 = ceilometer optics clo311 3 = ceilometer receiver...
Page 100: Caution
User's guide ______________________________________________________________________ 100 _________________________________________________________________ m210482en-b replacing ceilometer engine board cle311 caution servicing the equipment must only be performed by qualified maintenance personnel. Ce...
Page 101: Caution
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 101 8. Push the new cle311 board in such a way that it connects to the back plane connector. Tighten the hand screws to lock the positio...
Page 102: Replacing Ac Power Clp311
User's guide ______________________________________________________________________ 102 _________________________________________________________________ m210482en-b 4. Open the lid of the battery cage and slide out the battery. Disconnect the battery cable. 5. Connect the battery cable to the new b...
Page 103: Warning
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 103 warning disconnect the ct3839 power cable before continuing! 3. Remove the no-break battery. Refer to steps 3 to 5 in section replac...
Page 104: 311-230
User's guide ______________________________________________________________________ 104 _________________________________________________________________ m210482en-b replacing window blower clb311-115 / clb 311-230 caution servicing the equipment must only be performed by qualified maintenance perso...
Page 105: Caution
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 105 8. Switch the power on with all three switches. Wait for 3 minutes after the start-up until self-check is completed. Ensure that all...
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User's guide ______________________________________________________________________ 106 _________________________________________________________________ m210482en-b cover. Then detach the internal heater connector and holding the cable aside, gently pull out the optics tube with its upper end first...
Page 107: Clh311-230
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 107 replacing internal heater clh311-115 / clh311-230 caution servicing the equipment must only be performed by qualified maintenance pe...
Page 108
User's guide ______________________________________________________________________ 108 _________________________________________________________________ m210482en-b 6. To get to the internal heater, you also need to remove the ceilometer optics assembly clo311. To do this, detach all the cables and...
Page 109: Replacing Internal Cable Set
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 109 replacing internal cable set caution servicing the equipment must only be performed by qualified maintenance personnel. Note the int...
Page 110
User's guide ______________________________________________________________________ 110 _________________________________________________________________ m210482en-b 0408-020 figure 20 grounding wires of the internal cable set (top view) the following numbers refer to figure 20 above: 1 = grounding ...
Page 111
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 111 5. Unscrew the two wires from the internal heater connector. See figure 21 below. 0408-021 figure 21 internal heater wiring and conn...
Page 112
User's guide ______________________________________________________________________ 112 _________________________________________________________________ m210482en-b 0408-022 figure 22 optics frame with cable set the following numbers refer to figure 22 above: 1 = cable set 2 = mains filters 3 = cab...
Page 113: Caution
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 113 10. Connect the mains filters to the optics frame as shown in figure 23 on page 112. 11. Push the grounding wire and internal heater...
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User's guide ______________________________________________________________________ 114 _________________________________________________________________ m210482en-b 2. Disconnect the clt311 cable from the cle311. Detach the transmitter from the optics unit using the 2.5 mm allen key as a lever. 3. ...
Page 115: Caution
Chapter 8 ___________________________________________________________________ repair vaisala ______________________________________________________________________ 115 16. Give the status command and check from the status message that the measured outlaser is close (±5 %) to the new outlaser value. ...
Page 116
User's guide ______________________________________________________________________ 116 _________________________________________________________________ m210482en-b 4. Pull the dmx501 module gently out of its place on the cle311 board to avoid bending its legs. 0406-057 figure 24 dmx501 5. Check th...
Page 117: Technical Data
Chapter 9 ____________________________________________________________ technical data vaisala ______________________________________________________________________ 117 chapter 9 technical data this chapter provides the technical data of the product. Specifications this section describes the differe...
Page 118: Conditioner
User's guide ______________________________________________________________________ 118 _________________________________________________________________ m210482en-b external connector j1 - window conditioner table 22 window conditioner property description / value connector j1 type binder series 69...
Page 119: Note
Chapter 9 ____________________________________________________________ technical data vaisala ______________________________________________________________________ 119 external connector j3 - data line the data line is intended to be used for measurement data communication, but it can also be used ...
Page 120
User's guide ______________________________________________________________________ 120 _________________________________________________________________ m210482en-b external connector j4 - maintenance line maintenance line is intended for on-site maintenance and can be used with a ceilometer mainte...
Page 121: Modem Module Dmx501
Chapter 9 ____________________________________________________________ technical data vaisala ______________________________________________________________________ 121 modem module dmx501 table 26 modem module dmx501 specifications property value / description data rate 300, 1200, 2400 bps modem st...
Page 122: Receiver Specifications
User's guide ______________________________________________________________________ 122 _________________________________________________________________ m210482en-b receiver specifications table 28 receiver specifications property description / value detector silicon avalanche photodiode (apd) surf...
Page 123: Environmental Conditions
Chapter 9 ____________________________________________________________ technical data vaisala ______________________________________________________________________ 123 environmental conditions specifications table 31 environmental conditions specifications property description / value ambient tempe...
Page 124
User's guide ______________________________________________________________________ 124 _________________________________________________________________ m210482en-b this page intentionally left blank..
Page 125: Index
___________________________________________________________________________index vaisala ______________________________________________________________________ 125 index a alarm check 79 alarms laser failure 88 laser temperature shut-off 88 receiver failure 88 voltage failure 88 alarms 88 alignment ...
Page 126
User's guide ______________________________________________________________________ 126 _________________________________________________________________ m210482en-b lidar equation 75 lidar ratio 76 m main parts 15 maintenance alarms and warnings 79 battery check 81 maintenance cable 15 manual messa...
Page 127
___________________________________________________________________________index vaisala ______________________________________________________________________ 127 wavelength 121 wedge bolts 22 window cleaning 80