Dynamax InteliMet Advantage 6 User manual

InteliMet Advantage 6
Weather Station
User Manual v. 1.1

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Copyright 2011, Dynamax Inc
All Rights Reserved
InteliMet Advantage 6 V1.1
This manual refers to Lascano-Van Bavel ETP computation algorithm, implementation of the algorithm in
InteliMet Advantage 6 weather station, including PC200 data logger support software for InteliMet
Advantage 6 Weather station.
Specifications are subject to change. Dynagage is a new product for experimental purposes under
development. DYNAMAX Inc assumes no liability for customer assistance, infringements of patents or
copyrights arising from the use of this product. US Patents covering the construction of various stem flow
gauges are No 5,337,604 and 5,269,183. DYNAMAX does not warrant or represent that any license,
either express or implied, is granted under any patent right, copyright, or other intellectual property right
of DYNAMAX relating to this product, or process. There are no implied warranties of merchantability or of
fitness for a particular purpose given with the sale of any goods. DYNAMAX Inc shall not be liable for
consequential, incidental or special charges.
InteliMet Advantage 6, Dynagage, Dynamet, Flow32, Flow32W are trade marks of Dynamax Inc
Lascano-VanBavel ET algorithm as well as CR1000 (Dynamet) and CR200 (InteliMet Advantage 6)
programs for ETP are copyrights of Dynamax Inc.
MetPak ll is a trademark of Gill Instruments.
IBM is a registered trademark of International Business Machines
PC208W PC400, PC200 and LoggerNet are trademarks of Campbell Scientific Inc
Windows 2000, Windows XP, Windows Vista, Windows 7, Microsoft Office, Microsoft Excel are
trademarks of Microsoft Corporation.
Updated: 5/16/2017

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Includes documentation for Lascano-van Bavel RCM ET computation algorithm.
Programs written and algorithms verified by
Dr. Robert J. Lascano
Dr. Cornelius van Bavel,
Michael van Bavel, BSEE
Sai P. Gonuguntla, MSEE
Yunpeng Ji, BSEE
Programs and algorithms Copyright © Dynamax Inc. 2011
Portions of the manual are courtesy of Campbell Scientific, Inc and are subject to
Copyright © 1998, Campbell Scientific, Inc.
Portions of the manual are courtesy of Gill Instruments and are subject to
Copyright © Gill Instruments 2010
Trademarks used are property of their respective owners.

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TABLE OF CONTENTS
1.0 INTRODUCTION TO INTELIMET ADVANTAGE 6...................................................................5
1.1 Unpacking, Bill of materials........................................................................................................6
1.1.1 Bill of materials..........................................................................................................................7
1.1.2 List of Tools required.................................................................................................................8
1.2 Communication Options..............................................................................................................9
2.0 SOFTWARE INSTALLATION......................................................................................................10
2.1 PC200 Installation......................................................................................................................11
2.1.1 Working Directory Location....................................................................................................12
2.2 Lascano-VanBavel ET program for InteliMet Advantage 6 (CR200)..................................13
3.0 INTELIMET ADVANTAGE 6 AND SENSOR INSTALLATION...............................................14
3.1 MaxiMet GMX600.....................................................................................................................16
3.2 InteliMet Advantage 6 and Tripod Installation......................................................................19
3.2.1 Single Pole Installation: ...........................................................................................................20
3.2.2 Solar Panel Installation ............................................................................................................23
3.2.3 Install InteliMet Advantage 6 Enclosure..................................................................................24
3.3 Sensor Installation......................................................................................................................25
3.3.1 MaxiMet GMX600 ..................................................................................................................25
3.3.2 Solar Radiation (PYR-P)..........................................................................................................29
3.3.3 Soil Temperature sensor (109).................................................................................................30
3.3.4 Soil Moisture Sensor (SM300).................................................................................................30
4.0 Lascano-VanBavel ETP Program..................................................................................................31
4.1 Application of ETP Information –with Sap Flow ..................................................................32
4.2 ET Program Basics ....................................................................................................................33
4.3 ET Variables and complete algorithm .....................................................................................34
4.4 CR200 Program for InteliMet Advantage 6 and ET computation........................................36
4.5 Customizing the Program..........................................................................................................38
4.6 Sensor Constants........................................................................................................................41
5.0 USING PC200w ..............................................................................................................................43
5.1 Setup, Program Logger And Communications.......................................................................43
5.2 Connect To Logger.....................................................................................................................46

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5.3 Monitor Data In Real Time.......................................................................................................47
5.4 Data Collection...........................................................................................................................48
6.0 DATA FORMAT, VIEW AND GRAPHS ......................................................................................49
6.1 File Format .................................................................................................................................49
6.2 Data Format................................................................................................................................50
6.3 Open Data –Using “View”........................................................................................................51
6.4 Open Data –Using EXCEL.......................................................................................................53
Appendix A: LASCANO-VAN BAVEL ITERATIVE ET ALGORITHM................................................54
Appendix B: REFERENCES .....................................................................................................................56
Appendix C: DATA SHEETS.....................................................................................................................57

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1.0 INTRODUCTION TO INTELIMET ADVANTAGE 6
InteliMet Advantage 6 weather station is completely pre-wired, and assembled in a weatherproof
enclosure, including software to read data from weather sensors. Data is collected and stored in data
logger non-volatile memory. Up to 32,000 data points (85 days) can be stored in the data logger. Block
diagram of InteliMet Advantage 6 weather station logger is shown in the following chapters. Data logger
and weather sensors are supplied with a 4ft. metal pipe 1” in diameter. Crossbar is used for mounting for
weather transmitter, pyranometer mounting, leveling stand, and optional sensors if any as shown in the
figure below. Grounding rod, Lightening arrestor, and ground rod cables are required to protect system
from lightening surges. The InteliMet Advantage 6 weather station is a specially designed automated
system to record the critical weather parameters affecting the growth and harvest yield of crops.
Each station includes program for reading weather sensors, Lascano-Van Bavel Evapotranspiration (ETP)
for computing ETP in mm/hr. Crop growth models and Crop Water Index can be developed with this
information for grower applications of irrigation, pest control, and performing the optimum harvest. Many
other crop manager decisions can benefit from the hourly weather records, and current information.
Standard evapotranspiration modeling software is packaged with the InteliMet Advantage 6 weather
station. The purpose is to compute the potential evapotranspiration from short grass (ETP) in mm per hour
on an hourly basis. The algorithms are based on the method originally proposed by Penman, but with
several modifications by Dr. C.H.M. Van Bavel and Dr. Robert J. Lascano, that updated the procedure.
InteliMet Advantage 6 System Features
GMX600 Compact weather station
Wind Speed & Direction
Air Temperature
Relative Humidity
Barometric Pressure
Dew Point
Solar Radiation
Integrated Optical Rain Gauge
CR200 data logger
10W Solar Panel
Lightning Rod
Easy to use PC200W Software
Battery and charger circuit
32,000 data values (85 days) in recorded data
memory
RS-232 Interface and PC 9-pin cable (6’)
Mast - Enclosure specifications

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1.1 Unpacking, Bill of materials
Using the following bill of materials, open the cartons and check off the items to see that all material was
received in good condition. Notify Dynamax no later than 10 days after receipt if there are any
discrepancies. Notify the shipper and Dynamax immediately if goods are damaged in transit by
mishandling. The white InteliMet Advantage 6 enclosure contains the CR200 logger and battery. Sensor
cables with sensors installed on the end, exit from the bottom of the system enclosure. 6' RS232 interface
cable tucked inside the enclosure. Each sensor lead is labeled identifying the sensor type and constants if
any.
InteliMet Advantage 6 software CD-ROM is supplied with each system, unless otherwise ordered for
advanced software such as Logger Net or PC400. The software CD contains PC200w installation,
Lascano-VanBavel ETP programs, Documentation.

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1.1.1 Bill of materials
1. CR200 Data Logger
2. MaxiMet GMX600 Compact Weather Station
3. IMETA-PYRP Pyranometer
4. IMETA-LEV Pyranometer Leveling Base
5. CM225 Pyranometer Mounting Stand
6. 6ft SDI-12 Cable
7. USB-CONV1 Serial to USB Adapter
8. .75 & 1.0 x 1.25”Aluminum Pipe Holder
9. MaxiMet Support Tube. 1.25” ID, 10” Aluminum Custom Fitting
10. 1in X 1-1/4 in reducer
11. ¾” SCH 40 Aluminum Pipe x 36”
12. 4ft Vertical Pipe, Reducer 2-1”
13. 4ft Copper Ground Rod & Clamp
14. 10 X 8” Enclosure with Hardware
15. IMET 12V/2.9Ahr Battery
16. AC Power Transformer
17. Lightning Rod
18. 10W Solar Panel with Mounts
Optional
1. PC400 or LoggerNet –Advanced data logger support software.
2. CM6 –2m Tripod with collapsible leveling collars and ground stakes.
3. GSM-F1/2 GSM –Cell Modem Kit.
4. RFMX –RF Communications.
Optional Sensors
1. IMETA-109 –Soil Temperature Probe
2. IMETA-SM300 –Soil Moisture & Temperature Theta Probe
3. IMETA-QST –Quantum Sensor

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1.1.2 List of Tools required
Hardware supplied by the user
2” metal pipe, 4’ long (or) other compatible mounting pole/ tower
A general list of tools required
Shovel –or post hole digger
Large bucket or container to mix concrete
12” pipe wrench
Teflon tape or pipe dope
Small sledge hammer
12’ tape measure
Felt-tipped marking pen
Open-end wrenches: 3/8”, 7/16”, ½”, 9/16”
Socket wrench and 7/16” deep well socket
Level (12” – 24”)
5/64” Allen wrench
Straight-bit screwdrivers (small, medium)
Magnetic compass
Volt/ Ohm meter
Wire ties and tabs
Conduit and associated tools as required for optional sensors
6’ ladder
Lock and key for enclosure
Installation supplies needed:
2” metal pipe, 6’ long, threaded on one end for 2 in pipe thread.
Concrete (quick set) mix to secure the vertical pipe, and fill a 4 ft hole (1-2 bags). 2-4 gals water
as recommended by concrete mix.
Wooden stakes with tape, or bricks / rocks to hold the pipe vertically while setting.

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1.2 Communication Options
InteliMet Advantage 6 weather station based on CR200 logger offers a variety of communication choices
of user to connect between logger and PC using PC200 or PC400 or LoggerNet for advanced network
applications. Optional RS232, 150 to 250 ft RS232 extension cables can be added for direct
communication at 1200 baud. In addition, InteliMet Advantage 6 supports remote communication options
given below with easy to use software features.
(Model COM210) Land-line Modem for remote field retrieval and control:
Customer provides telephone connections and PC MODEM (Hayes compatible) at computer location.
Many models are supported by the telecommunication software package included in PC400 or LoggerNet.
(Model: SHM) Short haul modem for communication using 4-wire cable:
For cable communication of up to 4Miles not possible using 9-wire serial cable. DIP switch selectable.
Easy to install and establish communication. Short-haul modems are line-powered, i.e. powered from
communicating device PC or data Logger. Refer to sections 8.2 for a detailed discussion on Modem setup
and hardware required.
CR206 or CR216 Spread spectrum radio data transmission
(with Model: RFMX base station )Radio Modem
Stand-alone radio modems provide efficient and low-cost serial communication to remote installations for
long distances of up to 40 Miles @ 9600 baud rate. The CR206 operates at 915 Mhz in the USA, and
CR216 operates ate 2.4 Ghz in most other countries.
RFMX modems allow point-to-point and point-to-multi-point configurations between central PC and
multiple data loggers connected to it. RFMX modems can be setup using PC400 or LoggerNet software.
RFMX is also offered in a modem kit (Model: RFMXMK) with surge protector, high-gain antenna and
connectors assembled in a weatherproof enclosure. Optional solar panels are available to power the
modem continuously. Contact Dynamax representative for selecting suitable products for your
application.
(Model: GSM) Dual-band GSM Cellular modem (900/1800, 850/1900):
GSM cellular modem for serial data rates of up to 115,200 bps uses cellular network where available.
GSM modem is very low power modem with 5 AHr battery capacity of 33Hours of communication and
20Days on idle. GSM modem installed in remote site can be connected to PC using a 56K landline
modem (Model: DNX9600) and telephone network. GSM-CMK is a cellular modem kit that includes
modem, surge protector, antenna and 15' long antenna cable assembled in a weatherproof enclosure,
optional solar panels for continuous powering the modem. Software setup for GSM modem is same as
that of Data Modem. Contact Dynamax representative for selecting suitable product for your application.

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2.0 SOFTWARE INSTALLATION
InteliMet Advantage 6 is a completely integrated weather station capable of reading a variety of
meteorological sensors. Sensor readings are then stored in data logger’s memory. Data from the logger is
available for down load using support software. Downloaded data contains measurements from individual
sensors at the interval defined in the program and calculated ETP in mm/hour using Lascano-Van Bavel
Evapotranspiration (ETP) algorithm on an hourly basis. InteliMet Advantage 6 weather station is based on
CR200 data logger. Hence, can be operated using any of the following data logger support software,
PC200w –Included as standard with the weather station IMET-ADV, direct
connection with logger / PC only.
PC400 –Option for dial-up, RF MODEMs, and point to multi-point loggers
LoggerNet –Comprehensive networking options, with scheduling automatic data
retrieval and pakbus protocol networks. All communication links are supported: RF,
Tel MODEM, LANs, etc.
Each InteliMet Advantage 6 weather station is supplied with PC200w software in a CD along with CR200
programs to read sensors and calculate ETP.
For the procedure to connect, program and download data, refer to chapter 5. In this manual we describe
working with InteliMet Advantage 6 weather station using PC200w. Full capabilities of InteliMet
Advantage 6 weather station is obtained by using two sets of software programs,
1. Data logger support software - PC200w
2. Data logger program IMET_MP2_Main.CR2 to load in to CR200 data logger for reading
variety of weather sensors, compute weather data and ETP from electrical measurements
and store to logger memory. A test program Imet_MP2_Tst.CR2 is also supplied for
setting up or troubleshooting.
3. In addition custom weather station configurations may require a modified version of
ImetCust1.cr2 program.

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2.1 PC200 Installation
PC200 Logger utilities software installation is provided in the InteliMet Advantage 6 CD-ROM. Insert the
CD into the CD-ROM. Open windows explorer (My Computer) to view the list of files on the install CD.
Double click on pc200w_3.2.exe to launch the installation. The installation panels will guide you through
the process. Once the installation is complete the, PC200 software will be installed in the specified
directory. A PC200w icon will be placed on the desktop to give easy access to the software application.
Open My computer and navigate to the directory where software is installed. Verify that all the required
files are present in the directory as shown in the list below.

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2.1.1 Working Directory Location
PC200 install wizard prompts for working directory location. By default working directory is
C:\CampbellSci\PC200\
This can be changed by specifying a different path location on the hard-drive. Location of working
directory will not affect the operation of PC200. This directory stores temporary files. Following is a
typical list of files in working directory when working directory and PC200 executables are stored in
different locations.

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2.2 Lascano-VanBavel ET program for InteliMet Advantage 6 (CR200)
Each InteliMet Advantage 6 weather station is supplied with a standard CR200 program
IMET_MP2_Main.CR2 and a test program IMET_MP2_tst.CR2. These programs are supplied in
InteliMet Advantage 6 software CD in the Programs directory. IMET_MP2_Main.CR2 program is
loaded into the logger before it is shipped out. Copy programs directory containing,
IMET_MP2_Main.CR2 and IMET_MP2_tst.CR2 programs to your PC on to the directory
C:\\Dynamax\Imet\.
These are READ ONLY files. Any changes to these files are not allowed; you can make changes in the
CRBasic editor or other text editor and save the modified program with a new file name.
In addition if the InteliMet Advantage 6 system shipped is a custom set of sensors, with additional soil
moisture sensors etc., these are shipped with custom programs ImetCust1.CR2 and ImetCust1Tst.CR2 or
similar names in a standard CD. In this case, as before copy the contents of CD in addition to the standard
programs to,
C:\\Dynamax\Imet\

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3.0 INTELIMET ADVANTAGE 6 AND SENSOR INSTALLATION
InteliMet Advantage 6 weather station is completely integrated system with data collection/
processing and storage unit along with basic meteorological sensors. IMET_MP2_Main.CR2
program supplied with the system can read all the basic weather sensors (solar radiation, air
temperature, RH, Wind speed, wind direction, rain gauge, optional soil temp. and soil moisture),
process data according to the applied algorithms and constants, compute ETP and store in data
loggers memory for retrieval at a later time. InteliMet Advantage 6 weather station custom stations
will be assembled and programmed with a custom program before the units are shipped from our
factory. So, all the assembly and programming of the weather station is performed at our factory.
This leaves the end-user with only installation of the weather station at the required site.
This chapter discusses basics of installation on a steel pipe mast (standard), system mounting,
sensor wiring and solar panel installation. A separate manual is provided for optional tripod
installation. Selecting an appropriate site for installation of weather station is critical to obtain
accurate meteorological data. The site should be away from urban and natural obstructions such as
buildings and trees, or sprinkler irrigation. This chapter explains steps involved in
Pole installation
InteliMet Advantage 6 weather station installation
Solar panel installation
Sensor installation
Refer to the following chapters for software setup, programming and data retrieval.
InteliMet Advantage 6 stations components and wiring is shown in the diagram below.

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Vin+
Vin-
SDI-12
SGND
Weather Transmitter
GMX600

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3.1 MaxiMet GMX600
MaxiMet GMX600 is an advanced compact weather station designed and manufactured by Gill
instruments using proven technology to measure meteorological and environmental parameters
to international standards.
The MaxiMet uses the Gill WindSonic wind speed and direction sensor. The WindSonic
measures the times taken for an ultrasonic pulse of sound to travel from the North (N)
transducer to the South (S) transducer, and compares it with the time for a pulse to travel
from S to N transducer. Likewise times are compared between West (W) and East (E),
and E and W transducer.
If, for example, a North wind is blowing, then the time taken for the pulse to travel from N
to S will be faster than from S to N, whereas the W to E, and E to W times will be the
same. The wind speed and direction can then be calculated from the differences in the
times of flight on each axis. This calculation is independent of factors such as
temperature.
The compass point and polarity of U and V if the wind components along the U and V
axis are blowing in the direction of the respective arrows.
MaxiMet can output the following wind readings depending on use of a Compass or GPS.
oRelative wind –wind speed and/or direction, uncorrected, but relative to the north
marker, which may not be facing North.
oCorrected wind –with the aid of the Compass Magnetic North corrected wind
direction can be output.
oTrue wind –wind speed and/or direction information corrected by GPS for any
direction misalignment of the north marker and/or for any motion of the station.
(E.g. vehicle or vessel).
A Met Spec Multi-Plate Radiation Shield is used. The special shield plate geometry, with
its double louvre design, provides excellent response time performance of quick ambient

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temperature changes while still working effectively as a baffle to stop larger contaminants
such as salt or dirt from reaching the temperature and humidity sensor. The shield
benefits from very robust material choice and extremely high UV protection requiring no
maintenance.
There is an internal solid state instrument contained within the Radiation shield that
provides digital output signals for Relative Humidity, Temperature and calculated Dew
point.
Barometric pressure output is provided by a solid-state device fitted on to a circuit board
inside a MaxiMet molding.
MaxiMet contains a 2-axis compass and magnetic field sensing module using Magneto-
Inductive (MI) sensors. The sensor changes inductance by 100% over its field
measurement range. It incorporates a temperature and noise stabilized oscillator/counter
circuit. The compass has a high degree of azimuth accuracy. MaxiMet uses the internal
compass to electronically sense the difference in the earth's field from the system's
magnetic field, then an on-board microprocessor electronically subtracts out the system's
magnetic fields, reporting highly accurate compass readings. Wind direction data is
corrected for the orientation of the sensor. The output of the wind direction is relative to
magnetic North. The MaxiMet compass is calibrated at Gill Instruments before the unit is
delivered. Prior to installing MaxiMet it is suggested that for best accuracy a declination
figure should be entered. Use of the Compass Corrected Wind direction readings allows
the unit be installed such that accurate positioning of the MaxiMet North Marker is not
required.
Declination is the magnetic declination (the angle between Magnetic North and True
North) in degrees. This is a correction factor that is added to the magnetic north heading
from the compass. Map and declination figures in decimal figures can be obtained from
http://www.ngdc.noaa.gov/geomag/declination.shtml
MaxiMet uses a highly accurate GPS (Optional) antenna receiver module including a
ceramic GPS patch antenna. The module is capable of receiving signals from up to 48

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GPS satellites and transferring them into position and timing information that can be read
over a serial port. Small size and high-end GPS functionality are combined with low
power consumption.
When GPS Speed and GPS heading are available and GPS Speed transitions are above
5m/s, Corrected Wind Speed shall be computed as the True Wind speed using GPS
speed and GPS heading.
When GPS Speed is available and GPS Speed transitions are below 4m/s, Corrected
Wind Speed shall be computed as the True Wind Direction using GPS speed and
Compass heading.
An integrated optical rain gauge that automatically senses water hitting its outside
surface and provides measurements based on the size and number of drops. Algorithms
interpret this data and simulate the output of a tipping bucket rain gauge in a serial
format. The optical rain gauge has no moving parts associated with tipping bucket
gauges.

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3.2 InteliMet Advantage 6 and Tripod Installation
Operation, Overview and Quick start guide
1. Site selection and preparation.
2. Unpacking the system.
3. Mount user supplied pipe in the ground and add 1” pipe on top to give a total height of 6ft.
4. Install GMX600 on center pipe, orient to the North.
5. Mount InteliMet Advantage 6 enclosure, connect sensor cables, connect Power, and
Connect Grounding.
6. Install optional: solar panel, lightning rod, antenna (if applicable).
7. Connect personal computer.
8. Install datalogger support software (PC200w) on PC.
9. Connect power to the weather station. InteliMet Advantage 6 starts collecting data every minute
and calculates ET and saves to logger memory every hour using the default program stored in the
loggers non-volatile memory.
10. Using data logger support software, connect to the InteliMet Advantage 6 weather station. Set the
logger internal clock with the PC time/date Click on the Set Data logger Clk
11. Download IMET_MP2_tst.CR2 to logger InteliMet Advantage 6 weather station starts
measuring sensors every 10s and store the collected data and calculations to memory every
minute. Monitor sensor output and calculated ET data. If the sensors data and ETP output are with
in the acceptable ranges, means that the sensors and system are installed properly.
12. Now send the original logging program IMET_MP2_Main.CR2 program, for site-specific
parameters, save with a different name. Compile the new program and send to logger. Now the
data logger collects sensor data every minute, compute ET every hour and store hourly and daily
data to the logger.
13. After few days down load data stored in the logger memory.
PC200 -> Connect -> Collect all button
Retrieve data into *.csv files.
14. The retrieved data contains average weather sensor measurements at 1 hour intervals and
calculated ETP at 1 hour interval.