Vaisala Thunderstorm LS7002 User manual

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Vaisala Thunderstorm
Advanced Total LightningTM Sensor LS7002
The Latest in Precision
Lightning Geolocation
Technology
The LS7002 is an Advanced Total
LightningTM sensor. It detects low
frequency (LF) electromagnetic
signals generated by lightning
in order to provide extremely
accurate geolocation capability with
industry leading measurement of
lightning strength and lightning type
classification. The LS7002 is the most
cost-effective network-based lightning
detection solution for customers
demanding high accuracy, reliability,
ease of installation, and ease of
maintenance.
An LS7002 network uses a combination
of magnetic direction finding and
time-of-arrival techniques to deliver
superior detection efficiency, optimal
location accuracy, and system
redundancy with fewer sensors than
any other method for detecting cloud
lightning pulses and cloud-to-ground
lightning strokes. It provides large
area coverage with fewer sensors
leading to lower lifetime network
ownership costs than any other
technology.
Lightning Data for a Wide
Range of Applications
The Advanced Total LightningTM
Sensor LS7002 provides real-time data
that is recommended for operations
focused on tracking cloud and cloud-
to-ground lightning threats to ground-
based and airborne assets including
applications in:
• Aviation
• Defense
• Forestry
• Meteorology/Climatology
• Power Utilities
• Telecommunications
The Advanced Total LightningTM Sensor
network detects cloud and cloud-to-
ground lightning with high detection
efficiency and excellent location
accuracy. It uses combined technology
and provides large area coverage with
fewer sensors leading to lower lifetime
network ownership costs than any
other technology.
LS7002 Features and Benefits
▪The most precise cloud-to-
ground lightning detection,
geolocation, and calibrated
lightning parameters
▪Detects a high percentage
of cloud lightning for early
thunderstorm identification
▪Detects lightning events at long
ranges (>1500 kilometers)
▪Calibrated parameters for
lightning events including time,
location, amplitude, polarity, and
waveform features
▪Up to 95% network detection
efficiency for cloud-to-ground
lightning and better than 50%
network detection efficiency for
cloud lightning
▪Independently validated 250
meter median location accuracy
for cloud-to-ground lightning
strokes
▪New data buffering capability
at the sensor in case of
communication failure between
sensor and central processor
▪New lightning magnetic field
waveform storage capability at
the sensor
▪New capability to generate raw
sensor data locally for offline
reprocessing and archiving
▪Efficient lightweight electronics
module allows for ease of
installation and maintenance with
stand-alone, rooftop and indoor
electronic mounting options
▪Sensor electronics can be
installed separately from the
antenna, e.g., indoors in severe
weather locations
▪Compatible with previous
generation Vaisala sensors:
IMPACT, LS7000, and LS7001
▪Available in AC and DC versions

Technical Data
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Ref. B211284EN-A ©Vaisala 2013
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
Operational Specifications
Lightning Type Cloud (IC) and Cloud-to-ground (CG)
lighting events and flashes
Network Flash Detection Efficiencya, c 95% for CG; 50% for IC
Network Median Location Accuracyb, c 250 m
Range of Recommended Baseline
Distances Between Sensors
15 to 350 km
Minimum number of sensors per network Four
LF Band 1kHz-350kHz
Performance Monitoring Complete automatic system calibration
and self-test with manual capability
Remote Configuration Operational parameters are
remotely configurable
aIC flash detection efficiency of higher than 50% can be achieved with
network baseline distances shorter than 150 km.
bMedian network location accuracy can be better than 150 m in the
interior of the network.
cPerformance specifications are applicable to LS7002 networks using the
latest version of Vaisala’s Total Lightning Processor TLPTM
Standard Warranty
Vaisala warrants all products manufactured by Vaisala to be free
from defects in workmanship or material for one year from the
date of delivery. Contact your Vaisala Sales Representative for
specific product service warranty details.
Support Services
Training, technical support, and spare parts are available
for maintaining optimal network and sensor performance.
Contact your Vaisala Sales Representative for service agreement
information.
Time Synchronization
Source GPS receiver
Accuracy 50 nanoseconds to UTC
Mounting
Concrete ground pad
Non-ground mounting options available
Environmental Conditions
Temperature -40 °C to +55 °C
Relative Humidity 0 to 100% condensing
Wind Speed 0-240 km/h
Altitude Up to 5500 meters
Hail 2.0 cm in diameter
Ice 8 cm
Rain 8 cm/h at wind speed 65 km/h
Communication Interface
TCP/IP 64 kbps maximum per data stream depending upon
network geometry and gain settings
RS-232 Serial maintenance port for optional
on-site connection
Power Requirements
AC Power 100VAC-240VAC, 4A max, 50-60Hz
DC Power 48VDC, 1A max
Dimensions
Weight 37.4 kg
Height 2.2 meters
Width 0.4 m
Depth 0.4 m
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This device complies with part 15 of the FCC rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operations.