LI-COR LI-8100A User manual

A Quick-Start Guide to
Survey Measurements
Survey System
LI-8100A
Contents
Part 1: First Things First
Part 2: Connect to iOS version 8.4.1 and older
Part 3: Connect to any iOS or Android OS Device
Part 4: Connect Auxiliary Sensors
Part 5: Set the Soil Collars
Part 6: The Measurement Cycle
Part 7: Survey Measurement Tutorial
Part 8: Transfer Data from the LI-8100A
Part 9: Process the Data
Part 1: First Things First
Do this the first time you power up the system.
1. Install the computer software
The Windows® software is available from the LI-COR website:
www.licor.com/env/support. Search for LI-8100A.
2. Install a battery and power on the LI-8100A
Plug a charged battery into either one of the connectors
in the LI-8100A. Then press the ON/OFF button.
3. Connect the RS-232 serial cable and USB adapter
On your PC, find the serial port number:
A. Open the Device Manager: Press the Windows key (
Ctrl Alt
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type Device Manager, and then press Enter.
B. Expand the entry called Ports (COM & LPT).
C. Look for USB Serial Port (COM#).
Your serial port number is indicated by the number.
4. Connect to the LI-8100A
After the Ready light turns on and the pump starts running,
launch the LI-8100A PC software and click the Connect button (
). Enter the Port #, then click Connect.
5. Turn off the pump (optional)
If you are annoyed by the pump, click Utilities > Manual Con-
trols > Flow, then click 8100 Flow Off.
6. Check the instrument's date and time
Click 8100 > Date and Time. Set the time to match your time
zone.
Part 2: Connect to iOS version 8.4.1 and older
You can use the LI-8100APP for iOS devices that run iOS ver-
sions 8.4.1 and earlier if your LI-8100A has a Cisco® wireless
card installed under the access panel. For iOS version 9 and
newer, follow the instructions in Connect to any iOS or
Android OS Device. To enable wireless communication:
1Connect to the LI-8100A, as described in First Things First.
2In the computer software, click 8100 > Networking... and set
the IP Address and Netmask:
IP Address: 192.168.100.101
Netmask: 255.255.255.0
Connection Type: Peer-to-Peer (ad hoc)
Network Name (SSID): Soil Network 1
Channel: 1
Leave encryption unchecked. Click Set to apply
the settings. Then restart the LI-8100A.
3In iOS, go to Settings > Wi-Fi and connect to
Soil Network 1 (named in the previous step).
4Tap the network connection and tap Static.
Set the IP address and Subnet mask:
IP Address: 192.168.100.100
Netmask: 255.255.255.0
5Launch the LI-8100APP and tap Connect to
Instrument. Tap New, then type in the LI-
8100A's IP address (192.168.100.101), and save
it.
6Select the IP address and tap Connect.
If your mobile device is set to automatically join
the network, all you need to do to connect is
select the instrument IPaddress and tap Connect in the future.
Part 3: Connect to any iOS or Android OS Device
You can use the LI-8100APP on iOS and Android OS devices if you
install a battery-powered router in the LI-8100A. Here we
describe how to configure the TP-LINK router, install it, and con-
nect from a mobile device. Other brands of battery-powered
routers are compatible, but these steps apply to the TP-LINK
TL-MR3040: http://www.tp-link.com/en/products/details/cat-
4691_TL-MR3040.html
NOTE: Always read all instruction guides and quick start guides
for router.
1Install the charged battery in the router and power it on. Verify
that the power LED is green or orange and not blinking.
2Position the mode switch on the side of the TP-LINK to the pos-
ition labeled WISP or 3G/4G.
3Connect your computer to the router's network (be sure your com-
puter has a dynamic IP address, called Obtain an IP address auto-
matically in Windows®):
Either connect an RJ-45 Ethernet cable between the router
and your computer,
Or, connect to the wireless network. The network name
(called SSID) and wireless password are printed under the bat-
tery cover of the TP-LINK.
4Open a web browser and type 192.168.0.1 in the address bar,
then press Enter.
5Log in. The default credentials are:
Username: Admin
Password: Admin
6Click DHCP on the left of the setup page. Note the IP Address
range of the DHCP server and the Default Gateway. Typically
they are:
Start IPAddress: 192.168.0.100
End IP Address: 192.168.0.199
Default Gateway: 192.168.0.1
7If it is installed, remove the Cisco Systems wireless card that is
under the LI-8100A access panel.
8Connect to the LI-8100A using the serial or USB connection, as
described in First Things First.
9In the LI-8100A software, under 8100 > Networking... configure
the wireless settings.
Set the LI-8100A IP address so it is identical to the TP-LINK IP
address for the first three sets of numbers (as in, 192.168.0) and
outside the start and end range for the last set. So,
192.168.0.200 is a suitable IP address for the LI-8100A.
IP Address: 192.168.0.200
Netmask: 255.255.255.0 (this must be the same on the router
and the LI-8100A)
Gateway: 192.168.0.1 (this must be the same on the router
and the LI-8100A)
Connection Type: Access Point (infrastructure)
Leave encryption unchecked. Click Set to apply the settings.
10 Restart the LI-8100A.
11 Connect the router to the Ethernet port on the CompactFlash
adapter under the access panel.
12 Connect your iOS or Android device to the network created by
the TP-LINK. The network name (called SSID) and wireless pass-
word are printed under the battery cover of the TP-LINK.
13 Launch the LI-8100APP and tap Connect to Instrument.
14 Tap New, type in the LI-8100A's IP address (192.168.0.200), and
save it.
15 Select the IP address and tap Connect.
Once the connection is established, you may proceed with your
measurements.
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Part 4: Connect Auxiliary Sensors
For survey measurements, you'll typically use the Omega Probe and Thet-
aProbe to measure soil temperature and moisture. The EC-5 soil moisture
probe is described in the instruction manual.
1. Wire the sensors to the auxiliary sensor interface
Route the sensor cables through the gland plugs of the auxiliary sensor
interface and connect it to the AUX SENSOR INTERFACE terminal.
2. Omega Probe Configuration
In this example the Omega probe is connected to T1.
In the PC Software:
Click Setup > Chamber Meas-
urement > (Ctrl + M) Ther-
mocouples.
Select Efor the Omega Probe.
In the App:
Tap LI-8100A > Auxiliary Inputs,
the select the Thermocouple 1.
Select Efor the Omega Probe.
3. Decagon Devices GS1 Configuration
In this example the ThetaProbe is connected to V1.
In the PC Software:
Click Setup > Chamber Meas-
urement > Port Setup, and select
the voltage input channel.
Select Soil Moisture Probe and
enter m (Slope) and b (Offset)
from Table 1.
In the App:
Tap LI-8100A > Auxiliary Inputs,
then select the voltage input
channel.
Select SM and enter Slope and
Offset from Table 1.
Soil Type Slope Offset
Mineral 0.494 -0.554
Soilless Media 0.591 -0.661
Table 1. Coefficients for mineral and organic soils.
You can also perform soil-specific calibration to obtain linearization coef-
ficients; refer to the GS1 instruction manual for more information.
Part 5: Set the Soil Collars
Install soil collars 24 hours or more before making a meas-
urement.
In hard or compacted soils you may need to create a chan-
nel around the collar with a trowel before insertion.
In soft soils, you can lay a piece of wood across the collar
and drive the collar with a mallet.
Do not install the collars too deeply—to avoid shearing
roots under the collar.
Collars should extend a minimum of 2 cm above the soil
surface for survey chambers.
Measure the chamber offset. For survey measurements, it
is the distance between the soil surface and the top of
the collar.
Soil
Collar
Chamber
Offset
Part 6: The Measurement Cycle
The measurement cycle starts with an optional Pre-purge
period with the chamber open and gas flowing. At the
beginning of an Observation, the chamber closes. Upon
closing, the Dead Band starts and the instrument begins
logging data. The Post-purge begins when the obser-
vation is finished.
Observation
Chamber
Closes
Chamber
Open
Chamber
Opens
Post-
purge
Data
Logged
Observation
Length
Dead
Band
Pre-purge
(optional)
Time
CO2Concentration (µmol/mol)
Part 7: Survey Measurement Tutorial
Follow this tutorial to make a survey measurement. One
fully charged battery will provide about 2 to 3 hours of
operation.
1. Install the soil collars
See Set the Soil Collars for more details.
2. Connect the chamber
The survey chambers have three tubes: AIR OUT is to the
chamber, AIR IN is returning from the chamber, and
BELLOWS is air that drives the bellows.
3. Set up the measurement (part 1)
The following settings are recommendations. You should
experiment and post-process your data to determine the
best observation length, dead band, and post purge set-
tings.
In the PC Software:
Click Setup > Chamber
Measurement > Port
Setup > Observation:
Treatment Label: It will
be included in your data
record.
Observation Length: 90
to 120 seconds.
Dead Band: 30 seconds.
Observation Count: 1
Pre-purge: 0 seconds.
Post-purge: 10 seconds.
In the App:
Tap Setup >Meas-
urement Protocol:
Measurement Type:
Chamber
Obs. Length: 90 to 120
seconds
Dead Band: 30 seconds.
Obs. Count: 1
Pre-Purge: 0 seconds.
Post-Purge: 10 seconds.
Additional Log Fields: Set
to all.
4. Set up the measurement (part 2)
In the PC Software:
Click Setup > Chamber
Measurement > Port
Setup > Chamber:
Select your chamber.
Soil Area: 83.7 cm2for
the 10 cm chamber; 317.8
cm2for the 20 cm cham-
ber.
Chamber Offset: Enter
the offset.
In the App:
Tap Setup > Area and
Volumes:
Chamber Offset: Enter
the offset.
Soil Area: Select the 10
cm or 20 cm collar.
Chamber Volume: Select
your chamber.
5. Place the chamber over the collar
Gently set the chamber on the collar. Insert the soil tem-
perature and soil moisture probes at the desired depths
and distances from the chamber.
6. Start the measurement
In the PC Software:
Click Start Measurement:
Preset: Leave at Current
Setting.
Measurement File: Enter
a file name and create a
new file.
Comments: Comments
are recorded in the file
header.
Destination: Either the
instrument memory or
the CompactFlash card.
Measurement Start:Set
to Start Immediately.
In the App:
Tap Start Measurement:
File Name: Enter a name.
Comments: Enter com-
ments.
Chamber Offset: Enter
the offset.
Treatment Label: It will
be included in your data
record.
Log To: Instrument
memory or Com-
pactFlash.
Start At: Start imme-
diately
Repeat Meas.: 1.
Tap Start.
7. Check the data
In the PC Software:
Click View > Report.
Select a file, then click
Flux Computation.
In the App:
Tap Utilities > File Digest
View for either internal
or CompactFlash
memory.
Select a file and tap
Select.
Part 8: Transfer Data from the LI-8100A
Data files are stored in the LI-8100A memory, either in the
instrument storage or on a CompactFlash card in the instru-
ment. You can also eject the CompactFlash card under the
access panel to copy data from it.
1. Connect the instrument to a computer
See First Things First.
2. Open the file transfer tool
In the LI-8100A PC software, click Utilities > File Manager.
You will see a list of files and folders on your PC and lists of
files stored in the LI-8100A internal memory and Com-
pactFlash card.
3. Set the destination for the files
Under Local PC, select the folder where you want to store
the files.
4. Select the files that you want to copy
Under Internal Storage or CompactFlash Card, select one or
multiple files using Shift + Click or Ctrl + Click.
5. Transfer the data
Click Transfer to PC to move the files.
WARNING: Do not click Delete or Delete All unless you are
absolutely certain that you do not want the data. Deleted
files are not recoverable.
Part 9: Process the Data
SoilFluxPro™ software (formerly FV8100) is a free
PC- and Mac-compatible application for analyzing
data from the LI-8100A. In SoilFluxPro, you can
recompute data sets, graph data, analyze results,
and create .kml files for mapping georeferenced
measurements. SoilFluxPro is an essential part of
the LI-8100A system.
Get it from http://www.licor.-
com/env/products/soil_flux/software.html.