WeatherOne Data Logger (DL20 Series) - Tech-Rentals

WeatherOne Data
Logger (DL20 Series)
Features
• Single or dual channel logger
• Large data storage
• Robust sealed environmental housing
• Range of communications options
Description
Whether used as a single or dual channel recorder,
the DL series logger includes all the features
essential to keep important data collection systems
operational.
These advanced features, not normally found in
single channel recorders, include facilities for
connection to communications devices such as
cellular telephones and radios, as well as the
standard direct connection to a laptop or office
computer. A flashing system indicator provides
instant diagnosis of the logger’s status.
The logger incorporates battery and solar panel
monitoring to forestall a flat battery, battery back-up
of the stored data, and detection of sensor readings
outside a pre-set normal range. A visual indication
of this error is available as well as messages stored
in an internal diagnostic memory. An on-board
supervising or “watchdog” circuit also detects
software failure caused by electrical interference
and automatically restarts the logger.
The logger summarises data to make the most
efficient use of its large memory [35,000 readings].
The system’s multiple memories allow the vital
daily summaries to be held for at least 100 days.
Date and time stamps are explicitly stored with each
set of readings, so that stored data can be reliably
retrieved.
A custom range of analogue and digital inputs
is available to match typical weather sensors,
and other custom sensors. Sampling inputs cater
for higher-powered sensors which can be
operated at a regular sampling interval to
conserve power, weight and cost. Long cable
lengths are also possible, using the digital or
pulse inputs.
The DL logger is provided in a sealed
environmental housing with a robust weather
shield, suitable for reliable remote site
operation. It is fully self-contained, with options
for an external power source or a solar panel to
recharge its internal batteries.
The sensors are plugged in with sealed
connectors, and are supplied fully calibrated.
Data collection continues, even while data is
being downloaded.
The data file produced is in standard ASCII text
form, and includes date/time stamp and an
explanation of the data type and units. It is
immediately readable by spreadsheet, and is the
same data format as produced by other
Environdata products, to provide compatibility.
Environdata Environmental Monitoring & Management
P.O. Box 395, WARWICK, Queensland, 4370, Australia
Phone: (07) 4661 4699 Fax: (07) 4661 2485
Int. Phone: + 61 7 4661 4699 Int. Fax: +61 7 4661 2485
e-mail: sales@environdata.com.au
http://www.Environdata.com.au

Specifications
Memory
Data stored into 4 independent memory areas.
104K battery backup RAM - stores a total of 35,000
readings.
System Indicator
1 Second flash - Communicating; 2 Second flash -
Normal; 4 Second flash - Fault
Battery
6 volt 3.0AH internal sealed rechargeable gel cell -
capacity for 6 weeks operation without sunlight.
Power Consumption
2 mA in operating mode.
40mA while communicating.
0.8mA shutdown mode.
Solar Charger
1.5watt panel - maintains battery with three hours’
bright sunshine per day.
Programming
Pre-programmed with universal program - stores
daily summary (memory 1), hourly sensor data
(memory 2) and 10 minute data (memory 3). User
programmable at any time by simple text file or via
Windows programme.
Housing
Data logger fully sealed - IP67 rating
Dimensions - Data logger - 230mm x 140mm x
95mm
including weather shield - 240mm x 180mm x
130mm
(excludes solar panel and mounting).
Format
Readable text file (ASCII). Includes calendar
dates and times, decimal places as required.
EasiAccess Windows software includes
graphing, database, reporting and weather
station management functions.
RS232 Connection
6 pin (serial RS232C standard). DTR, DSR,
TX, RX, ground & power. 300 to 9600 Baud.
OPTIONAL SENSORS
Air Temperature
-20.0ºC to + 60.0ºC. Accuracy +/- 0.2ºC.
Calibrated at 0.0ºC and 25.0ºC.
Relative Humidity
Electronic capacitance type. Accuracy +/- 2 %
Range 0-100 %.
Wind Speed
3 cup 66mm dia. Anemometer. Resolution
10m. Starting threshold 1Kph.
Solar Radiation
Global incoming with cosine correction.
Accuracy +/- 5%. Cosine accuracy +/- 3%
Other optional sensors include barometric
pressure, leaf wetness, soil temperature and
grass temperature. Interfaces for voltage,
current, resistance etc. available on request.
Weight - Complete system is 7kg Packaged
(with solar panel, Stand and one sensor)
Environdata Environmental Monitoring & Management
P.O. Box 395, WARWICK, Queensland, 4370, Australia
Phone: (07) 4661 4699 Fax: (07) 4661 2485
Int. Phone: + 61 7 4661 4699 Int. Fax: +61 7 4661 2485
e-mail: sales@environdata.com.au
http://www.environdata.com.au
release date 18/10/01

Wind Speed Sensor
(WS30, WS31 & WS32)
Features
• Non-Contact - Optical detector
• Low friction bearings
• Low starting torque
• Good dynamic characteristics
• Long Operating life
Applications
• Meteorology
• Wind Profiling
• Crop Studies
• Agronomy
• Pollution Control
The WS30 Series Wind Speed Sensor uses
a sensitive 3-cup anemometer designed to
measure wind speed and wind run in
isolated locations with a minimum of
attention.
Three conical shaped black delron cups of
optimum proportions turn the main spindle.
The spindle is supported by two special low
torque, stainless steel, low- friction
bearings.
The output pulses are generated by an
optical interrupter arrangement mounted on
the lower end of the spindle, which
provides an ideal, frictionless, coupling.
The spindle body is undercut to prevent
entrance of moisture through the upper
“O”ring. A labyrinth significantly reduces
entrance of dust or moisture into the upper
bearing.
The dynamic characteristics of the unit are
exceptionally good because the moment of
inertia of the rotating parts is very low. The
body is symmetrical and well clear of the
three rotating cups which helps to minimise
interfering eddies. The above features
enhance the sensitivity of the instrument
and make it ideally suited to the study of
micro-climates.
Environdata Environmental Monitoring & Management
P.O. Box 395, WARWICK, Queensland, 4370, Australia
Phone: (07) 4661 4699 Fax: (07) 4661 2485
Int. Phone: + 61 7 4661 4699 Int. Fax: +61 7 4661 2485
e-mail: sales@environdata.com.au
http://www.environdata.com.au

Specifications
Sensing Type:
3-cup anemometer
Measurement Units:
Metres per second (m/s)
Other units can also be used
Operating Range:
0 to 75 m/s
Startup Threshold:
0.3 m/s
Accuracy:
± 0.2 m/s or ± 0.5 m/s of reading,
whichever is greater
Distance Constant:
Typically 3 to 4 metres
Sensor Exposure:
Heights of two, three or ten metres
above ground level are most
commonly used
Calibration:
Reliability:
Cups:
Rotating arms:
Bearings:
Housing:
Not subject to drift - based on
mechanical and optical construction.
Typically five (5) years operation
possible before overhaul
White - 64 mm black Delron cups
Light weight aluminium
Low friction, stainless steel.
Clear anodised aluminium
Mode of Operation:
Optical interrupter
Operating Conditions:
Temperature -20°C to +70°C
Humidity 0% to 100%
Supply Voltage:
5.5 to 7 Volts DC
Current Drain:
Output:
< 0.7 mA
+5 Volt pulse
Dimensions (mm)
Configurations:
Model
Output(pulse/km)
Interrupter Slots
Resolution(pulse)
Cable Type:
Cable Length:
Ordering Information:
WS Model
-30
-31
-32
Shipping Weight: 1.2kg
WS30
1250
2
0.8
3 core
shielded
2m
WS31
5000
8
0.2
3 core
shielded
2m
WS32
625
1
1.6
3 core
shielded
2m
Environdata Environmental Monitoring & Management
P.O. Box 395, WARWICK, Queensland, 4370, Australia
Phone: (07) 4661 4699 Fax: (07) 4661 2485
Int. Phone: + 61 7 4661 4699 Int. Fax: +61 7 4661 2485
e-mail: sales@environdata.com.au
http://www.environdata.com.au

Wind Direction Sensor
(WD32)
Features
• Visual indication of wind direction
• Special machining to prevent entry of windborne
dust or moisture
• Long operating life
• Low friction shielded bearings
• Good dynamic characteristics
Applications
• Meteorology
• Wind Profiling
• Crop Studies
• Ecology
• Pollution Control
The WD32 wind direction sensors are
sensitive wind direction indicators which give
a variable pulse rate output and a visual
indication of wind direction.
The aluminium wind vane is attached to an
aluminium arm and adjustable brass pointer.
The vane, arm and pointer turn the main
spindle, which is supported by low friction
shielded bearings.
The two part spindle cap allows easy
alignment to North on-site with the aid of a
sensor test box. The instrument is normally
used in conjunction with a Wind Speed
Sensor (WS30 Series) or equivalent to
measure the wind run and windspeed.
A special universal coupling provides a
positive connection with the potentiometer
transducer ensuring reliable and trouble-free
operation.
A four groove labyrinth machined into the
spindle housing prevents the entrance of windborne
dust or moisture into the upper bearing.
Environdata Environmental Monitoring & Management
P.O. Box 395, WARWICK, Queensland, 4370, Australia
Phone: (07) 4661 4699 Fax: (07) 4661 2485
Int. Phone: + 61 7 4661 4699 Int. Fax: +61 7 4661 2485
e-mail: sales@environdata.com.au
http://www.environdata.com.au

Specifications
Dimensions (mm)
Sensing Element:
Vane
Measurement Units:
Degrees deviation from North
Startup Threshold:
0.3 m/s
Resolution:
Accuracy:
Speed Range:
Bearings:
Special notes:
5°
±5°
0.5 to 180 Km/hr
Low-friction stainless steel
Sensor output is discontinuous at
North with a gap of approx. 10°
Calibration Method:
Frequency range is adjusted in
the factory.
Attachment of the vane sets
actual direction in the field.
Reliability:
Housing:
Typically five (5) years operation
possible before overhaul.
White-Powder-coated
aluminium.
Operating Conditions:
Temperature -20°C to +70°C
Humidity 0% to 100%
Sensor mounting:
Heights of two, three and ten
metres above ground level are
commonly used.
Supply Voltage:
5.5 to 7 Volts DC
Current Drain:
Output:

EasiAccess Weather Station Software
[EA40]
Overview
EasiAccess software is an easy to use yet powerful tool for
downloading, managing and viewing the weather data from
your weather station in one seamless package.
• Manage one or many weather stations.
• Manage data easily with import and export
functions.
• View weather data in tabular or graphical form or
both.
• View real time live data from a connected weather
station.
Connection
Connecting to your weather station is as simple as clicking the Connect button.
Figure 1.1 Current Readings Display
Connection options include:
• Direct cable connection (options up to 5km)
• GSM & CDMA
• Telephone line modems
• Ethernet (TCP/IP)
• Wireless radio data links. Figure 1.2 Connecting to the weather station
• Combinations of the above can also be used.
Connection Security
EasiAccess ensures secure connection and communication with the weather
station in three ways by verifying the:
1. Weather station serial number
2. Date and time
3. Database structure
Upon successful connection, an “On-Line” indicator shows the connection is
active.
Figure 1.3 Verification screen
For modem connections (where call costs apply), EasiAccess has an over-riding timer that automatically
closes the connection if a preset limit is exceeded, to prevent excess call costs.
‘Real Time’ or Live Weather Data
EasiAccess provides a full screen display of the weather ‘right now’. (See Figure 1.1 above)
This means the current conditions from a remote site can be monitored in an unobtrusive but effective way
from your office or vehicle.
The display is continually updated, and can be seen from a distance or used as a wall display on an appropriate
monitor so many people can see the readings at a glance.
Environdata Australia
P.O. Box 395 WARWICK QLD 4370 Phone: (07) 4661 4699 Page 1 of 1
sales@environdata.com.au
www.environdata.com.au

Collecting (stored) Data
When told to collect the data from the weather station, EasiAccess automatically collects all data stored in the
weather station since the last time data was downloaded. This data is saved into simple text files on the
computer, providing a secure copy of the data. These data files then update the database automatically.
EasiAccess will warn the user if it detects out of sequence data, data files that have no ‘end of data’ marker,
invalid dates or times, or the wrong number of items. Therefore, you are assured of the validity of your data.
For advanced users, a wide range of collection options can be selected.
Managing Your Data
Viewing your weather data
Viewing your weather data is as simple as double clicking on a memory table in the database.
Figure 2.1 selecting a memory table
Daily, hourly and intensive data (for example 15minute
data) from the weather station are held as separate database
‘tables’ within EasiAccess, which means immediate access to the
level of detail that you require.
Simply clicking on a table heading displays an automatically
scaled graph of that data, as shown in figure 2.2.
Figure 2.2 Automatic scaled graph
Quick access to the desired
level of detail in your graphs
is available by three ‘zoom’
controls:
1. A simple click and
drag zoom function,
2. Zoom in/out buttons
on the toolbar &
3. Zoom controlled by
the mouse wheel
Figure 2.3 selecting a zoom area
Figure 2.4 The chosen area zoomed
To compare or contrast readings, up to six graphs can be shown on the same chart. This allows you for example
to place the air temperature, relative humidity and wind speed onto a single chart as shown in figure 2.5.
In addition, several columns of data can be displayed in each of the six graphs. For example, the average wind
speed and peak wind gust on the one graph. Figure 2.6 shows the option screen for selecting this graph.
The tabular view - as pictured in figure 2.7 - shows the actual recorded values, and allows selected sections to
be printed or ‘exported’ to other applications.
There is no limit to the number of data points EasiAccess can handle.
Environdata Australia
P.O. Box 395 WARWICK QLD 4370 Phone: (07) 4661 4699 Page 2 of 2
sales@environdata.com.au
www.environdata.com.au

Figure 2.5 Graph of selected data
Figure 2.6 Graph option screen
Figure 2.7 Tabular view of data
Database Management
EasiAccess provides database tools to allow data from each
weather station to be viewed, imported, exported and modified
as desired.
Selected data can be exported in three formats, the standard
Environdata format, CSV format for direct transfer to MS Excel
and Access, and a customisable format to allow transfer to
virtually any other application. The Data Export screen is
shown in Figure 2.8 to the right.
Data can be imported with similar ease from most data sources,
including spreadsheets and databases. Your data can also be
edited in EasiAccess’ table based editor.
The ability to archive your database as desired will maintain the
‘current’ database at a manageable size. This allows you to
maximise the speed of data access.
Figure 2.8 Data Export Options
Environdata Australia
P.O. Box 395 WARWICK QLD 4370 Phone: (07) 4661 4699 Page 3 of 3
sales@environdata.com.au
www.environdata.com.au

Advanced Features
Figure 3.1 Report option screen
Reports
EasiAccess allows you to create multiple pre-defined layouts for
reporting.
This allows you to create many specific layouts that provide the
required display at a click of a button.
This can be used for regular reporting or to compare data from a
number of stations.
A particular benefit is that the time range selected for a report can be
a fixed period, such as ‘January’ or can be a relative time, as in ‘the
last 7 days’.
Calculations
A recently added option for EasiAccess is the ability to calculate additional data based on the weather data
already downloaded.
This provides a powerful means of calculating and displaying information derived from your weather data,
such as wind chill, heat stress, sigma theta or other calculations applicable to your industry.
Wind Rose
A wind rose report is a single page statistical diagram of wind speed
and direction information over a customisable time period.
This conveniently summarises the wind distribution for the period
visually.
Environdata now offers Wind Rose reports as an optional extra, which
allows you to easily create graphs and tables for reports and analysis.
The actual statistical data is also available as a tabulation to allow
easy comparison. Figure 3.2 to the left shows Wind Rose report in
tabular and graphical screens.
Figure 3.2 Wind Rose Report
Environdata’s weather stations with our optional AirData software can provide a very accurate record of
true wind movement, using vector analysis. Environdata’s wind rose report can be based on this data to
provide a much higher degree of accuracy by representing the true wind movement.
Multiple stations
EasiAccess can manage almost any number of weather stations, simplifying administration and providing a
means to easily compare data between stations. Quick access to multiple stations is via the drop down
selection on the EasiAccess main screen.
Automation
Basic data collection and real time displays of weather data can be activated automatically, which allows
task schedular programs (such as that included with Windows XP Pro) to automate tasks.
This means updates can be done regularly and automatically, with the information disseminated across a
network or emailed as an attachment across the Internet. (Our AE10 Auto-Email software is an optional
extra) Therefore your data collection can have a minimal impact on your daily routine.
Pre-configured Installation
Environdata provides a Windows installation wizard for EasiAccess, as well as a pre-configured weather
station set-up for your particular application.
Therefore you only have to provide a name for the station and enter the user access codes provided, to
make setting up your weather station and software easier than ever.
Environdata Australia
P.O. Box 395 WARWICK QLD 4370 Phone: (07) 4661 4699 Page 4 of 4
sales@environdata.com.au
www.environdata.com.au