Vaisala FS11 User manual

USER'S GUIDE
Visibility Sensor
FS11
M211187EN-C

PUBLISHED BY
Vaisala Oyj Phone (int.): [phone]
P.O. Box 26 Fax: [phone]
FI-00421 Helsinki
Finland
Visit our Internet pages at www.vaisala.com.
© Vaisala 2013
No part of this manual may be reproduced, published or publicly displayed in any form
or by any means, electronic or mechanical (including photocopying), nor may its
contents be modified, translated, adapted, sold or disclosed to a third party without prior
written permission of the copyright holder. Translated manuals and translated portions
of multilingual documents are based on the original English versions. In ambiguous
cases, the English versions are applicable, not the translations.
The contents of this manual are subject to change without prior notice.
This manual does not create any legally binding obligations for Vaisala towards
customers or end users. All legally binding obligations and agreements are included
exclusively in the applicable supply contract or the General Conditions of Sale and
General Conditions of Service of Vaisala.

_________________________________________________________________________________
VAISALA_________________________________________________________________________ 1
Table of Contents
CHAPTER 1
GENERAL INFORMATION................................................................... 9
About This Manual............................................................. 9
Version Information......................................................... 9
Related Manuals.............................................................. 9
Documentation Conventions...................................... 10
Product-Related Safety Precautions........................ 10
ESD Protection............................................................... 12
Recycling ............................................................................. 13
Regulatory Compliances............................................... 13
Trademarks......................................................................... 14
License Agreement ......................................................... 14
Warranty............................................................................... 14
CHAPTER 2
PRODUCT OVERVIEW ........................................................................ 15
Description and Purpose .............................................. 15
Mechanical Structure...................................................... 16
Equipment Nomenclature............................................. 17
CHAPTER 3
INSTALLATION ...................................................................................... 19
Organizing Installation................................................... 19
Location and Orientation .............................................. 20
Unloading and Unpacking............................................ 22
Unpacking Procedure................................................... 22
Storage Information ...................................................... 22
Equipment Grounding and Lightning
Protection ............................................................................ 23
Cable Selection ................................................................. 25
Line Power Cable .......................................................... 25
Communication Cable.................................................. 27
Installation Procedures.................................................. 28
Foundation Construction ............................................. 28
Mounting when Casting Pad................................. 29
Mounting to Existing Surface................................ 31
Assembling FS11 .......................................................... 32

USER'S GUIDE ____________________________________________________________________
2 ____________________________________________________________________ M211187EN-C
Inserting Battery for Optional FSB101.....................42
Connecting Cables........................................................44
Power Cable...............................................................45
Communication Cable.............................................47
Communication Options ..............................................48
Serial Communications Settings..........................48
Serial Transmission with RS-232.........................49
Serial Multipoint Transmission with RS-485.....50
Modem DXL421 (Optional)....................................52
Multipoint Modem Connection ..............................55
Maintenance Terminal Connection .....................56
Background Luminance Options...............................57
LM21 Background Luminance Sensor...............57
Day/Night Photo Switch..........................................57
Obstruction Light Option..............................................59
Startup...............................................................................60
Initial Settings..................................................................61
CHAPTER 4
OPERATION.............................................................................................63
FS11 Commands...............................................................63
Entering and Exiting Command Mode.....................63
OPEN Command ......................................................64
CLOSE Command....................................................65
Available Commands....................................................65
Command Completion..................................................70
Terminal Line Number Adjustment...........................71
Command Polling ..........................................................71
Message Formats .............................................................72
MESSAGE Command..................................................73
MESSAGE 1, FS11.......................................................73
Alarm Status Codes.................................................74
MESSAGE 2, FS11 with LM21..................................75
MESSAGE 3, Status Message ..................................76
MESSAGE 4, Uncompensated Values...................78
MESSAGE 5, Vaisala System Standard ................79
FD12 Emulation..............................................................79
FD12 Message 2.......................................................80
FD12P Message 7....................................................81
MITRAS Emulation........................................................82
MITRAS Single Baseline ........................................82
MITRAS Double Baseline ......................................84
Message Sending Modes ..............................................86
Automatic Mode .............................................................86
ACK/NAK Confirmation...........................................86
Polled Mode.....................................................................88
Second Message ...........................................................89

_________________________________________________________________________________
VAISALA_________________________________________________________________________ 3
System Configuration .................................................... 90
Default Factory Settings .............................................. 90
Optional External Sensors.......................................... 91
LM21 Background Luminance Sensor............... 91
Day/Night Sensor ..................................................... 91
Simulated Test Messages............................................. 92
Fixed Test Messages ................................................... 92
Manual Simulation Message...................................... 93
Operating LM21 through Maintenance Port.......... 95
Serial Communication Settings............................ 95
Serial Transmission RS-232 ................................. 95
Entering and Exiting Command Mode .................... 96
OPEN Command...................................................... 96
CLOSE Command ................................................... 96
Available Commands ................................................... 97
Parameter Configuration ............................................. 99
Default Settings for FS11 Use............................ 100
LM21 Standard Initialization........................... 100
CHAPTER 5
THEORY OF OPERATION................................................................ 101
Hardware Description................................................... 103
Measurement Unit FSM102 ..................................... 103
Transmitter Unit FST102...................................... 103
Receiver Unit FSR102 .......................................... 105
Controller Board FSC102..................................... 107
Interface Unit FSI102 ................................................. 107
Communication Controller Board FSC202..... 108
AC (Mains) Power Supply.................................... 108
Battery Backup........................................................ 109
Frangible Mast.............................................................. 109
Software Description .................................................... 110
Measuring Sequence ................................................. 110
Visibility Measuring Principle ................................... 110
Calculations................................................................... 111
Internal Monitoring ........................................................ 111
FS11 Status Messages.............................................. 111
Event Messages ..................................................... 112
Alarm Messages..................................................... 117
Optical Contamination and Blocking
Monitoring ...................................................................... 118
Contamination Compensation ............................ 119
Signal Monitoring......................................................... 120
Transmitter Intensity Stability................................... 120
Heaters Operation....................................................... 121
Power Supplies ............................................................ 121
Analog Interfaces......................................................... 122

USER'S GUIDE ____________________________________________________________________
4 ____________________________________________________________________ M211187EN-C
Memory Tests and Program Operation.................123
Communication Monitoring .......................................123
Background Luminance Sensor ..............................124
Error Log.........................................................................124
CHAPTER 6
MAINTENANCE ....................................................................................125
Cleaning FSM102 Windows........................................125
FS11 Calibration..............................................................127
FSM102 Visibility Calibration ...................................127
FSM102 Calibration Check Procedure ............128
FSM102 Calibration Procedure..........................129
FSM102 Mechanical Alignment Check
Procedure..................................................................130
FSM102 Guided Calibration Procedure...........131
Evaluating Results of Guided Calibration
Procedure for Measurement Unit.......................134
Calibration Passed............................................134
Calibration Procedure Failed .........................137
Replacing FS11 Modules.............................................139
Replacing FSC102 ......................................................140
Replacing FSC202 ......................................................142
Replacing FSP103 ..........................................................146
Replacing Transmitter Module FST102 and
Receiver Module FSR102.........................................149
Replacing/Installing Sensor Cables in FS11 .......155
Replacing Fuses .............................................................157
CHAPTER 7
TROUBLESHOOTING ........................................................................159
Error Messages ...............................................................160
Errors...............................................................................160
Alarms .............................................................................161
Warnings ........................................................................162
Indications......................................................................163
Miscellaneous Problems .............................................164
Technical Support ..........................................................166
Product Returns..............................................................166
CHAPTER 8
TECHNICAL DATA ..............................................................................167
Specifications ..................................................................167
Operational Specifications ........................................167
Optical Specifications .................................................167

_________________________________________________________________________________
VAISALA_________________________________________________________________________ 5
Electrical Specifications............................................. 168
Mechanical Specifications ........................................ 169
Environmental Specifications................................... 169
Electromagnetic Compatibility ................................. 169
CRC16 Checksum .......................................................... 170
INDEX....................................................................................................... 171

USER'S GUIDE ____________________________________________________________________
6 ____________________________________________________________________ M211187EN-C
List of Figures
Figure 1 FS11 System........................................................................16
Figure 2 FS11 Recommended Location with Mast
FSAM250/FSFM250 ..........................................................20
Figure 3 FS11 Equipment Grounding............................................24
Figure 4 Junction Box.........................................................................26
Figure 5 Casting Concrete Foundation .........................................28
Figure 6 FS11 Foundation Construction.......................................30
Figure 7 Mounting FS11 to Existing Surface...............................31
Figure 8 Mounting FS11 Mast Using Foundation Kit
FS211296..............................................................................32
Figure 9 Mounting FS11 Frangible Mast Grounding
Cable.......................................................................................33
Figure 10 Mounting FS11 Aluminum Mast Using
Foundation Kit FS211296.................................................34
Figure 11 Fixing Sensor Arm with Allen Screws...........................35
Figure 12 Mounting Rear Panel of Radiation Shield ...................35
Figure 13 Tilting Aluminum and Frangible Pole Masts ...............36
Figure 14 Connecting Measurement Unit .......................................37
Figure 15 Suspending Enclosure from Rear Panel......................38
Figure 16 Threading Cable Connector with Cable Tie................38
Figure 17 Threading LM21 Cable......................................................39
Figure 18 Mounting LM21....................................................................39
Figure 19 Mounting Interface Unit Enclosure ................................40
Figure 20 Sensor Arm Assembly.......................................................41
Figure 21 Mounting Radiation Shield ...............................................42
Figure 22 Backup Battery without Cover Plate..............................43
Figure 23 Interface Unit Enclosure Cable.......................................44
Figure 24 Cabling Principle .................................................................46
Figure 25 Cable Grounding Instruction............................................48
Figure 26 RS-232 Communication Option......................................50
Figure 27 RS-485 Communication Option......................................51
Figure 28 RS-485 Application.............................................................51
Figure 29 DXL421 Modem Wiring.....................................................52
Figure 30 Installing DXL421................................................................54
Figure 31 Location of External Maintenance Line
Connectors............................................................................56
Figure 32 Wiring Day/Night Photo Switch.......................................58
Figure 33 Obstruction Light Wiring ...................................................59
Figure 34 Switching On Unit ...............................................................60
Figure 35 FS11 Block Diagram........................................................102
Figure 36 FST102 Transmitter Block Diagram............................104
Figure 37 Window Contamination Measurement Principle
inside Transmitter and Receiver FSM102.................105
Figure 38 FSR102 Receiver Block Diagram ................................106
Figure 39 Location of Surface Temperature Probe....................122
Figure 40 Installing Zero Plugs.........................................................128

_________________________________________________________________________________
VAISALA_________________________________________________________________________ 7
Figure 41 Assembling and Attaching Calibrator ......................... 129
Figure 42 Installing Mask Plates onto Opaque Glass Plates.. 131
Figure 43 Visibility Sensor Controller FSC102............................ 140
Figure 44 VS Bottom View, Central Compartment Cover
Screws ................................................................................. 141
Figure 45 FSI102 Interface Unit....................................................... 142
Figure 46 Power and Battery Switch Locations.......................... 143
Figure 47 FSC202 Connectors and Cover Plate Screws ........ 144
Figure 48 FSC202 Screws and Connectors ................................ 145
Figure 49 FSP103 Parts..................................................................... 147
Figure 50 Visibility Sensor Transmitter and Receiver
Control Cables................................................................... 149
Figure 51 End Plug Removal (Shown for Transmitter)............. 150
Figure 52 Module Retainer Removal (Shown for
Transmitter) ........................................................................ 150
Figure 53 Pushing Control Cable into Optics Head................... 151
Figure 54 Transmitter Resp. Receiver Module, Control
Cable Disconnected......................................................... 151
Figure 55 Pulling Control Cable out of Housing Tube .............. 152
Figure 56 Transmitter/Receiver Module O-Ring......................... 152
Figure 57 End Plug with O-Ring ...................................................... 153
Figure 58 FSP103 and FSC202 Sensor Cable
Connections ....................................................................... 155
Figure 59 Location of Fuses on FSP103 Board.......................... 157

USER'S GUIDE ____________________________________________________________________
8 ____________________________________________________________________ M211187EN-C
List of Tables
Table 1 Manual Revisions..................................................................9
Table 2 Related Manuals ...................................................................9
Table 3 FS11 Basic Nomenclature ...............................................17
Table 4 FS11 Options Nomenclature...........................................18
Table 5 FS11 Recommended Accessories ................................18
Table 6 AC (Mains) Cable Selection.............................................27
Table 7 Communication Cable Lengths ......................................48
Table 8 Default Communication Settings....................................61
Table 9 FS11 User Level Commands..........................................65
Table 10 FS11 Advanced Level Commands................................67
Table 11 Alarm Status Codes ...........................................................74
Table 12 Default Factory Parameter Settings..............................91
Table 13 LM21 User Level Commands..........................................97
Table 14 LM21 Advanced Level Commands ...............................98
Table 15 Default Settings for LM21 in FS11 Use......................100
Table 16 Measurement Unit Event Messages...........................112
Table 17 Interface Unit Event Messages.....................................113
Table 18 Background Luminance Detector Sensor Event
Messages ............................................................................114
Table 19 Error Messages .................................................................117
Table 20 Alarm Messages................................................................117
Table 21 Warning Messages...........................................................118
Table 22 Indication Messages ........................................................118
Table 23 Successful Guided Calibration Procedure ................135
Table 24 Guided Calibration Procedure, Calibration
Update..................................................................................136
Table 25 Guided Calibration Procedure, Scatter Signal
Test Failed ..........................................................................137
Table 26 Guided Calibration Procedure, Zero Test Failed.....138
Table 27 Wiring for LM21 Cable.....................................................156
Table 28 Wiring for FSM102 Cable ...............................................156
Table 29 Error Messages .................................................................160
Table 30 Alarm Messages................................................................161
Table 31 Warning Messages...........................................................162
Table 32 Indication Messages ........................................................163
Table 33 Miscellaneous Problems.................................................164
Table 34 FS11 Operational Specifications..................................167
Table 35 FS11 General Optical Specifications..........................167
Table 36 FS11 Transmitter Optical Specifications....................168
Table 37 FS11 Receiver Optical Specifications ........................168
Table 38 FS11 Electrical Specifications.......................................168
Table 39 FS11 Mechanical Specifications ..................................169
Table 40 FS11 Environmental Specifications ............................169
Table 41 FS11 CE-Compliance......................................................169

Chapter 1 _________________________________________________________ General Information
VAISALA_________________________________________________________________________ 9
CHAPTER 1
GENERAL INFORMATION
This chapter provides general notes for the manual and the product.
About This Manual
Visibility Sensor FS11 User's Guide contains information relating to
transportation, installation, and operation of the system. The assembly
operations and maintenance work are also covered in detail. Finally,
troubleshooting instructions and technical specifications are included to
help fault tracing.
Version Information
Table 1 Manual Revisions
Manual Code
Description
M211187EN-C
This manual. Updated with information on modem
DXL421.
M211187EN-B
Previous version. Added FSC202, FSP103, and
sensor cable replacement instructions.
M211187EN-A
First version of this manual.
Related Manuals
The need for the following manuals, which are for related sensors,
computers, displays, and such equipment, depends on the system
configuration. (These documents are not included in the standard FS11
delivery.)
Table 2 Related Manuals
Manual Code
Manual Name
M211107EN
FS11P User's Guide
M210310EN
TERMBOX 1200 Termination Box, User's Guide
M210374EN
QBR101 User's Guide
M210283EN
LM21 User's Guide

USER'S GUIDE ____________________________________________________________________
10 ___________________________________________________________________ M211187EN-C
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
WARNING
Warning alerts you to a serious hazar
d. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION
Caution warns you of a potential hazard. If you do not read and follow
instructions carefully at this point, the product could be
damaged or
important data could be lost.
NOTE
Note highlights important information on using the product.
Product-Related Safety Precautions
The following safety precautions must be observed during all phases of
installation work and repair of this instrument or the equipment. Failure
to comply with these precautions or with specific warnings elsewhere in
this manual violates safety standards of design, manufacture, and
intended use of the instrument or equipment. Vaisala Oyj and its
subsidiaries assume no liability for the consequences of customer's
failure to comply with these requirements.
WARNING
To minimize the electrical shock hazard, the Visibility Sensor chassis
must be connected to a good electrical earth. The instrument is equipped
with a thre
e-conductor AC (mains) power cable. Be sure that the earth
wire of the cable is connected to an electrical ground.
WARNING There is also a grounding plug at the bottom of the interface unit's
enclosure of the Visibility Sensor. Good grounding with a 16 mm2cable
must be provided. Besides improving safety, this protects the Visibility
Sensor against lightning induced voltages.

Chapter 1 _________________________________________________________ General Information
VAISALA________________________________________________________________________ 11
WARNING
To prevent operator injury or damage to the Visibility Sensor, verify that
the
line voltage setting is correct before con
necting the line power. Also
ensure that the line power outlet is provided with a protective ground
contact.
WARNING
Do not operate the equipment in the presence of flammable gases or
fumes. Operation of any electrical instrument in such an environment
c
onstitutes a definite safety hazard.
WARNING
Do not attempt internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.
WARNING
Operating personnel must not remove instrument covers. Component
rep
lacement or internal adjustments must be made by qualified
maintenance personnel. Do not replace components with the power cable
connected. Under certain conditions, dangerous voltages may exist even
with the power cable disconnected. To avoid injuries dis
connect the
power and discharge all circuits before touching them.
CAUTION
The component boards including CMOS microchips should be
transported and stored in conductive packages. Although new CMOS
devices are protected against overvoltage damages caused
by static
electric discharge of the operator, careful handling is recommended: The
operator should be properly grounded. Unnecessary handling of
component boards should be avoided.
CAUTION
Because of the danger of introducing additional hazards, do not m
odify
or substitute parts in the instrument. Contact Vaisala or its authorized
representative for repairs to ensure that safety features are maintained.

USER'S GUIDE ____________________________________________________________________
12 ___________________________________________________________________ M211187EN-C
RADIO FREQUENCY INTERFERENCE STATEMENT (USA)
The United States Federal Communications Commission (in 47 CFR
15.838) has specified that the following notice be brought to the attention
of users of this kind of product in the USA:
Federal communications commission radio frequency interference
statement
This equipment generates and uses radio frequency energy and if not
installed and used properly, that is in strict accordance with the
manufacturer's instructions, may cause interference to radio and
television reception. The Visibility Sensor is designed to provide
reasonable protection against such interference in an airport
installation. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment causes interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- reorient the receiving antenna
- relocate the device with respect to the receiver
- move the device away from the receiver
If necessary, the user should consult the dealer or an experienced
radio/television technician for additional suggestions.
ESD Protection
Electrostatic Discharge (ESD) can cause immediate or latent damage to
electronic circuits. Vaisala products are adequately protected against
ESD for their intended use. However, it is possible to damage the product
by delivering electrostatic discharges when touching, removing, or
inserting any objects inside the equipment housing.
To make sure you are not delivering high static voltages yourself:
- Handle ESD sensitive components on a properly grounded and
protected ESD workbench. When this is not possible, ground yourself
to the equipment chassis before touching the boards. Ground yourself
with a wrist strap and a resistive connection cord. When neither of the
above is possible, touch a conductive part of the equipment chassis
with your other hand before touching the boards.
- Always hold the boards by the edges and avoid touching the
component contacts.

Chapter 1 _________________________________________________________ General Information
VAISALA________________________________________________________________________ 13
Recycling
Recycle all app
licable material.
Dispose of batteries and the unit according to statutory regulations. Do
not dispose of with regular household refuse.
Regulatory Compliances
The FS11 (with or without LM21) complies with the following directives
and standards:
- Low Voltage Directive (2006/95/EC)
- EMC-Directive 2004/108/EC)
- EN 60950-1 :2006 + A11:2009 Information technology equipment -
Safety - Part 1: General requirements
- UL 60950-1:2007 (2nd Edition) and national differences for United
States and Canada
- EN 61326-1 :2006-04 Electrical equipment for measurement, control
and laboratory use - EMC requirements - for use in industrial
locations.
- EN 55022:2006 + Am 1:2007 to EN55022:2006 Class B. Information
technology equipment - Radio disturbance characteristics - Limits and
methods of measurement.
- EN 61000-3-2 (2006) Limits for harmonic current emissions
- EN 61000-3-3 (2008) Limitation of voltage changes, voltage
fluctuations and flicker in public low-voltage supply systems

USER'S GUIDE ____________________________________________________________________
14 ___________________________________________________________________ M211187EN-C
Trademarks
RAINCAP® is a registered trademark of Vaisala Oyj.
Windowsis a registered trademark of Microsoft Corporation in the
United States and/or other countries.
License Agreement
All rights to any software are held by Vaisala or third parties. The
customer is allowed to use the software only to the extent that is provided
by the applicable supply contract or Software License Agreement.
Warranty
For certain products Vaisala normally gives a limited one-year warranty.
Visit our Internet pages for more information and our standard warranty
terms and conditions: www.vaisala.com/services/warranty.html.
Please observe that any such warranty may not be valid in case of
damage due to normal wear and tear, exceptional operating conditions,
negligent handling or installation, or unauthorized modifications. Please
see the applicable supply contract or Conditions of Sale for details of the
warranty for each product.

Chapter 2 ___________________________________________________________ Product Overview
VAISALA________________________________________________________________________ 15
CHAPTER 2
PRODUCT OVERVIEW
Description and Purpose
FS11 is an intelligent visibility sensor for automatic weather-observing
systems. The visibility measurement is specially designed for Runway
Visual Range (RVR) applications but measures up to a Meteorological
Optical Range (MOR) of 75 km. If the detector is equipped with a
background luminance sensor, it can also measure ambient light.
The sensor can be employed as an observer’s aid in a semi-automatic
weather observing system. The sensor is also suitable for other weather
observing systems providing valuable information, for example, to
airport, road and harbor authorities.
The FS11 sensor requires a 115/230 VAC power supply and an RS-232
or an RS-485 cable or a single pair modem line for communication. The
instrument sends data and status messages to a remote display unit or a
data processing system.
A set of built-in commands and test routines is provided for the
configuration and monitoring of the multiple FS11 functions. During the
assembly and maintenance procedures, a display terminal is needed for
checking the system parameters and possibly for changing their values.

USER'S GUIDE ____________________________________________________________________
16 ___________________________________________________________________ M211187EN-C
Mechanical Structure
1005-009
Figure 1 FS11 System
The following numbers refer to Figure 1 above:
1
=
Measurement Unit FSM102
2
=
Interface Unit FSI102
3
=
Pole mast
4
=
Background Luminance Sensor LM21 (optional)
5
=
FS11OBS Obstruction Light (optional)

Chapter 2 ___________________________________________________________ Product Overview
VAISALA________________________________________________________________________ 17
The FS11 system is constructed of three main parts (see numbers 1–3 in
Figure 1 on page 16):
1. Measurement unit FSM102 includes the measurement CPU, optical
parts, transmitter, receiver, and protective hoods equipped with
heaters.
2. The interface unit FSI102 includes the communication CPU, power
supply, optional modem board, and optional backup battery.
3. The frangible pole mast includes the mechanical fixing onto the
foundation or some other flat surface, and the support for the
measurement unit and the interface unit's enclosure.
The FSM102 transmitter and receiver optics are permanently aligned
downwards and outwards to protect them from blowing dust, snow, and
rain. The scatter measurement angle is 42°. The enclosure of the interface
unit is normally mounted on the pole mast, which supports the
measurement unit.
Equipment Nomenclature
Table 3 FS11 Basic Nomenclature
Code
Common Name
Description
FSM102
Measurement Unit
Measurement unit assembly
FST102
Transmitter module
FSR102
Receiver module
FSC102
Measurement CPU
FSI102
Interface Unit
Power supply, interfacing
assembly
FSC202
Interface CPU
FSP103
Power Supply
FS45048
Mast Cable
For FSFM250
FSFM250
Frangible mast and
Foundation kit
Frangible composite mast
(allows 2.5 m measurement
volume height from ground) with
installation kit and accessories
FS211295
Mast
Frangible mast
FS211296
Foundation kit
Installation kit for frangible and
aluminum masts for existing and
new foundations

USER'S GUIDE ____________________________________________________________________
18 ___________________________________________________________________ M211187EN-C
Table 4 FS11 Options Nomenclature
Code
Common Name
Description
DXL421
Modem
For remote communication
(leased line)
DMX501
(discontinued)
Modem
For remote communication
(leased line)
LM21
Background Luminance
Sensor LM21 for FS11
Includes accessories
FSB101
Battery backup
QBR101 battery charger and
battery 2 Ah
FS11OBS
Obstruction Light
12 VDC, 7 W obstruction light
DRW232138
Sensor Arm
Mechanical installation support
for LM21 and FS11OBS options
TERMBOX-
1200
Junction box
Junction box, AC (mains) and
signal connections, and
enhanced lightning protection
FSAM250
Aluminum mast and
Foundation kit
Aluminum mast (allows 2.5 m
measurement volume height
from ground) with installation kit
and accessories
FD1130
Mast
Aluminum mast
FS211296
Foundation kit
Installation kit for frangible and
aluminum masts for existing and
new foundations
FSAM300
Aluminum mast and
Foundation kit
Aluminum mast (allows 3 m
measurement volume height
from ground) with installation kit
and accessories
FD15030
Mast
Aluminum mast
FS211296
Foundation kit
Installation kit for frangible and
aluminum masts for existing and
new foundations
Table 5 FS11 Recommended Accessories
Code
Common Name
Description
FSA11
Visibility Calibration Set
Includes:
−Calibration devices
−Maintenance cable QMZ101
−Special tools needed in
installation and
maintenance
LMA21
LM21 Field Calibration Set
LM21 Field Calibration Device