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Vaisala CL31 User Manual - page 41
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 defaults
Restores the following default settings:
Operation mode: normal
Measurement mode: standard
Data acquisition autoadjustments: on
Blower control: auto
Inheater control: auto
Diagnostics intervals: 2 min
Power-save mode: disabled
Power-save sleep interval: 60 s
Message angle correction: on
Message transmission: periodic
Message transmission delay: 100 ms
Message height-offset: 0
Message interval: 2 s
Manual message: disabled
Message port: data
Message profile scale: 1.0
Message profile noise-h2: off
Message type: msg2_20x385
Message units: feet
Message VV limit ceiling: 6562 ft (2000 m)
Message VV limit sky-condition percentage: 50 %
Port timeout: 2 min
Unit ID: 0
set diag interval angle
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval battery
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval contam
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval int_temp
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval l_power
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval l_temp
Sets diagnostic-data logging interval (min). 0 disables.
set diag interval clear
Clears all diagnostic-data history.
set maint_port baud 115.2 k
Maintenance serial port speed.
set maint_port baud 57.6 k
Maintenance serial port speed.
set maint_port baud 38.4 k
Maintenance serial port speed.
set maint_port baud 28.8 k
Maintenance serial port speed.
set maint_port baud 19.2 k
Maintenance serial port speed.
set maint_port baud 14.4 k
Maintenance serial port speed.
set maint_port baud 9600
Maintenance serial port speed.
set maint_port baud 7200
Maintenance serial port speed.
set maint_port baud 4800
Maintenance serial port speed.
set maint_port baud 3600
Maintenance serial port speed.
set maint_port baud 2400
Maintenance serial port speed.
set maint_port baud 1800
Maintenance serial port speed.
set maint_port baud 1200
Maintenance serial port speed.
set maint_port baud 900
Maintenance serial port speed.
set maint_port baud 600
Maintenance serial port speed.
set maint_port baud 300
Maintenance serial port speed.
set maint_port parity 7E1
Maintenance serial port settings.
set maint_port parity 7O1
Maintenance serial port settings.
set maint_port parity 8N1
Maintenance serial port settings.
set message transmission delay
Sets request-based delivery response delay (ms).
Summary of CL31
Page 1
Vaisala ceilometer cl31 u ser ' s g uide m210482en-b october 2004.
Page 2
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...
Page 4
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 ...
Page 14
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...
Page 16
User's guide ______________________________________________________________________ 16 __________________________________________________________________ m210482en-b 0311-057 figure 2 ceilometer cl31 main parts.
Page 17
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...
Page 18
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 ...
Page 20
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...
Page 22: Note
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...
Page 23
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...
Page 24
User's guide ______________________________________________________________________ 24 __________________________________________________________________ m210482en-b 0311-056 figure 6 mounting the shield.
Page 25
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...
Page 27
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...
Page 32
User's guide ______________________________________________________________________ 32 __________________________________________________________________ m210482en-b 0311-058 figure 11 subassembly interconnections.
Page 33
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...
Page 34
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...
Page 36
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...
Page 40
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...
Page 41
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...
Page 42
User's guide ______________________________________________________________________ 42 __________________________________________________________________ m210482en-b command description set message transmission periodic sets periodic message transmission. Set message transmission request sets messag...
Page 43
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...
Page 46
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...
Page 47
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 ...
Page 48
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...
Page 49
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...
Page 53
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...
Page 54
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...
Page 56
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...
Page 57
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...
Page 58
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 = ...
Page 61
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...
Page 63
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...
Page 67
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 ...
Page 68
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...
Page 72
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 ...
Page 76
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 ...
Page 78
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 ...
Page 85
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...
Page 87
Chapter 7 ___________________________________________________________ troubleshooting vaisala _______________________________________________________________________ 87 status message info reason instructions window contamination warning (continuous). Bird droppings, leaves, dust etc. Have contamina...
Page 88
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...
Page 89
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...
Page 97
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...
Page 98
User's guide ______________________________________________________________________ 98 __________________________________________________________________ m210482en-b 0311-057 figure 18 main components of ceilometer cl31.
Page 99
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...
Page 106
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...
Page 114
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