CID CI-202 User manual
DOCUMENT OVERVIEW
INTRODUCTION ........................................................................................................................................1
CI-202 Specifications............................................................................................................................... 2
Features.....................................................................................................................................................2
OPERATING INSTRUCTIONS..................................................................................................................3
Measure ....................................................................................................................................................3
View Data.................................................................................................................................................4
Manipulate Files.......................................................................................................................................5
Transfer Data from a File .........................................................................................................................6
Clear a File ...............................................................................................................................................6
Delete a File..............................................................................................................................................6
Create a File..............................................................................................................................................7
Close a File............................................................................................................................................... 8
Set-Up Instrument.....................................................................................................................................8
Set-Up Measure Parameter.......................................................................................................................8
Set-Up Scanner Thresholds ......................................................................................................................9
Manual Threshold Adjustment.............................................................................................................9
Set-Up Storage (check space or erase) ...................................................................................................10
Set-Up Auto Store Parameter.................................................................................................................10
Calibrating the CI-202............................................................................................................................12
CI-202 Threshold Set-up Procedure...................................................................................................12
CHARGING THE BATTERY ...................................................................................................................15
Care and Cleaning .................................................................................................................................. 15
THEORY OF OPERATION.......................................................................................................................16
Overview of the Parts of the Instrument.................................................................................................16
The Width Scanner.................................................................................................................................16
Computing the Parameters...................................................................................................................... 16
Computing Aspect Ratio and Shape Factor Information........................................................................17
TROUBLESHOOTING..............................................................................................................................18
Updating the Firmware...........................................................................................................................18
Technical Support...................................................................................................................................19
Customer Service....................................................................................................................................19
Frequently Asked Questions................................................................................................................... 20
Troubleshooting the LIBUSB.dll Error..................................................................................................22
CID Hardware Warranty.............................................................................................................................23
CI-202 PRODUCTION TEST CHECK SHEET........................................................................................24
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may
cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at their own expense.
Warning: This equipment has been tested and found to comply with the limits of CISPR 22 and EN 61326-1:2006 Class A. These limits are designed
to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications.
Warning: This is a Class A product. In a domestic environment, this product may cause interference in which case the user may be required to take
adequate measures.
CI-202 Instruction Manual rev. 5/16/2017
1554 NE 3rd Ave, Camas, WA 98607, USA
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INTRODUCTION
Congratulations on the purchase of your new CI-202 Portable Leaf Area Meter. Making leaf measurements
in the field or laboratory is now very easy with the CI-202 Portable Leaf Area Meter. This state-of-the-art
instrument has been designed to be the most portable leaf area measurement system available. Although you
are anxious to use your new meter, please take the time to read this manual first. For more information
about the CI-202, such as recent peer-reviewed publications using the CI-202 or the technical support forum,
please visit the CI-202 Product webpage at http://www.cid-inc.com/leaf-area/ci-202.php.
Figure 1. CI-202 Portable Leaf Area Meter
CI-202 Instruction Manual rev. 6/20/2016
1554 NE 3rd Ave, Camas, WA 98607, USA
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CI-202 Specifications
Scanner:
670 nm Laser Diode
Max. Measuring Length
36cm
Max. Measuring Width:
150mm
Max. Measuring Thickness:
15mm
Max. Scanning Speed:
127 mm/second
Area Units:
cm2
Accuracy:
±1% for samples > 10cm²
Data Storage:
8,000 Measurements
Computer Interface:
USB 2.0
Display:
16 characters × 2 line LCD
Battery:
7.2V rechargeable NiMH
Battery Life:
15hrs
Operating Temperature:
0-50ºC
Weight:
1.50 Kg
Features
Quick, non-destructive measurements
Precise and accurate
Measures area, length, width and perimeter
Will store up to 8,000+ data points
Download data and recharge via USB on your laptop in the car or the field
Durable and lightweight
Ideal for field use
Calculates shape factor and aspect ratio
Single self-contained instrument with built-in LCD display
Samples may be scanned on the scan board.
No calibration required
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OPERATING INSTRUCTIONS
The CI-202 is a self-contained, hand-held instrument with a built-in display and batteries. It contains an
optical scanner to measure width,.
Taking a measurement can be as simple as turning the instrument on, inserting a leaf on the scan board, and
scanning. The instrument does the rest.
To turn the instrument on or off, press the ON/OFF button. When the instrument comes on, a copyright
notice will appear for 1/2 second. Following this, several words will appear on the display with the word
“Measure” appearing in the upper left-hand corner of the display. You are now in the CI-202 menu system.
NOTE: When there are no files to store data to, the measure menu items will not be available.
To correct this situation, create a file.
The following sections describe the menus and what they do. The CI-202 menu system allows you to
quickly and easily operate the instrument without constantly referring to this manual. Whenever possible,
the screen associated with a menu item will give you information about choices that you can make. Usually,
the top line of the screen will contain information about where you are, and the bottom line will contain
information about buttons to press to change the current status.
Measure
In the measure mode, the top line of the screen will show the word “Measure” on the left, and the name of a
file on the right. The bottom line of the screen will have the word “start” in brackets on the left, and the four
direction arrows on the right.
Measure file00
<start>
The options are:
to select another mode with the up or down arrow keys
to select another file (if there is more than one file) with the right or left arrow keys
to take measurements
To start measuring, hit the enter key or the start key. This begins the measurement process. The motor will
start spinning up to speed as soon as the button is pressed, and the display will read “Stabilizing”, then
“Spinning Up”, then “Measuring”. At this point, move the scan head down the scan board. When the scan
head has been drawn out completely, the instrument will stop automatically and display results of the
measurement. At this point, preview the results, and decide whether it should be saved and to which file it
should be saved to. The enter key will cause the scanner to start and then the instrument will start
measuring; if motion is not detected within a few seconds, the scanner will shut down. The start key does the
same thing, but if it is held down, the scanner keeps spinning until you are ready to measure.
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The display will show the name of the current file in the upper left-hand corner of the screen, parameter
name in the lower left-hand corner and parameter value in the lower right-hand corner of the screen.
file00
area = 44.04 cm2
NOTE: Because of the amount of information displayed on this screen, the CI-202 cannot display any
prompts in this mode.
To bring another parameter into view, press the RIGHT or LEFT arrow key. Repeatedly pressing the right
arrow key will step you through area, length, width, perimeter, aspect ratio and shape factor, in that order.
Only parameters that can be saved to the current file will be displayed. If changes are required before data is
saved, use the up and down arrow keys to step through the files. To discard the measurement, press the
STOP button. Another measurement may be taken at this time, if required. Depending on the set-up of the
automatic save function of the instrument (see Set-up Auto Store parameter section in the main section of
this manual) the measurement will or will not be saved.
To save the measurement, press the SAVE button. If the instrument is able to save this measurement, the
word “saved” will flash on the bottom line of display to confirm the data saved. If there is insufficient
storage space to save the measurement, the instrument will flash the message “no room!” on the bottom line
of the display.
View Data
In the view mode, the top line of the display will show the word “View” on the left and the name of a file on
the right. The bottom line will show the word “enter” on the left and the four direction arrows on the right.
View file00
<enter>
The options are:
to select another mode with the up or down arrow keys
to select a file (if there is more than one file) with the right or left arrow keys
to view battery life
to view voltages
start the viewing process by pressing the START/ENTER button
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Once you have selected a file to view and pressed the ENTER button, you will be able to look at the data in
the file. The top line of the screen will have the file name at the left. Press the UP arrow to see the word
“total” on the right and the total of all areas. Press the UP arrow again to see the average.
file00 total
area = 345.0 mm2
Note: Because of the amount of information displayed on this screen the CI-202 cannot display any
prompts in this mode.
One of three things will be displayed: the most current measurement sequence number, the average of all
measurements, or the total of all measurements. The bottom line will display the parameter name on the left
side and the parameter value on the right side.
To bring another parameter into view, press the RIGHT or LEFT arrow key. Repeatedly pressing the right
arrow will display area, length, width, perimeter, aspect ratio and shape factor in that order. To bring
another measurement into view, press the UP or DOWN arrow key. Pressing the UP arrow key will display
the total values for all measurements in the file in the following order: The first value shown is the average
value for all of the measurements in the file, the most recent measurement in the file and on through the first
measurement taken. Next, return to the total again. Think of this view mode as a computer spreadsheet that
only allows the user to view one cell at a time.
To return to the main view mode, press the STOP/RESET key.
To view battery life, arrow right or left until “View Battery” is displayed. Hit enter and it will display
battery life left.
Manipulate Files
The CI-202 gives an expanded ability to organize data collection by using a file structure similar to that used
by personal computers. The CI-202 has up to 256 files available. Select a unique name for each file to
control the data stored in each file to optimize the amount of data stored for research that is carried out.
The file mode capabilities are: Clear, Delete, Create, and Close files. While in the file mode, the top line of
the screen will read “files” on the left and one of the words “Clear”, “Delete”, “Create”, or “Close” on the
right. The bottom line of the display will read “enter” on the left and the four direction arrows on the right.
The options are:
to select another mode, use the up or down arrow keys
to select a particular action to carrying out on files, use the right or left arrow keys
to start the selected action, use the START/ENTER key
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Transfer Data from a File
Data can be downloaded from the CI-202 to a PC at any time the instrument is idle. Plug in the USB cable to
both the instrument and the PC and run the CI202dfV1006.exe program on the PC (downloadable on the
CID Bio-Science website). Power on the CI-202. Pressing the folder icon will open an additional window
with all of files saved on the CI-202. From here you can download files, save files to the PC, and print files.
Under the file menu option on the CI-202, the four possible actions available are as follows:
Clear a File
When the START/ENTER key is pressed, “clear filename” is displayed on the top line, indicating the unit is
ready to clear the file with the name filename. Selecting enter will clear the data from the selected file, but
keep the filename active for future data collection.
clear file00
<enter><stop>
Delete a File
Pressing START/ENTER when “Delete files” is displayed on the top line indicates the unit is in the delete
file mode. This mode will erase a file completely from memory. In this mode, the top line of the display
reads “Delete” on the top left line and the name of a file on the right. The bottom line of the display reads
“enter” on the left and the up and down direction arrows on the right.
Delete file00
<enter>
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To delete a file, use the UP or DOWN arrow keys to select a file. Once a file is selected to be deleted, press
the START/ENTER key. The instrument will confirm the deletion with the line “<erase> <stop>”. To
delete the file, press the SAVE key. To escape without deleting the file, press the STOP key.
Create a File
When the START/ENTER key is pressed, “Name: Files” is displayed on the top line, indicating the unit is
in create files mode. The top line of the screen will read “Name” on the left, and a file name (e.g. “file00”)
on the right. The bottom line will read “enter” at the left, “erase” at the center, and the four direction arrows
at the right.
Name: file00
enter erase
NOTE: The STOP key can be pressed at any time to abort the file creation process and to return to this
point.
Pressing the arrow keys will allow an alpha or numeric selection for a six-character file name. The right and
left arrow keys select which character in the file name to edit and the up and down arrow keys are to choose
a character. The chart below lists the available characters.
! " # $ % & ' ( ) * + , - x / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
@ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ ¥ ] ^ _
Pressing the SAVE/ERASE key in the "Create files" mode deletes the character under the cursor. Also,
characters cannot be inserted. After naming the created file, press the START/ENTER key twice to
continue the file creation process by entering Parameter Set-Up. Should the file name be identical to
another file name, the instrument will display the message “duplicate name” on the top line of the display
and “enter” on the bottom. All the data is stored no matter what the YES/NO flag is set to for area, length
width, perimeter, ratio, and factor. If the Root Length flag is set to YES, then only length is stored, but the
record length and number of measurements possible is unchanged.
When entering file Parameter set-up, the top line of the display reads the name of a parameter at the left and
the word “yes” or “no” at the right. This indicates whether the particular parameter will be flagged for
display. The bottom line of the display will read “enter” at the left and the four direction arrows at the right.
Note: “Root Length” Parameter must be set to “No” when “Setup Measure” mode is set to measure
“Leaf.”
area yes
<enter>
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To set a flag for a parameter, select the parameter and press the DOWN key. The word on the top right of
the display will change from “yes” to “no” and that parameter will flagged to not display. To set the flag to
display a parameter, select the parameter and press the UP arrow key; the word at the top right of the display
will change from “no” to “yes”.
Once finished setting up the parameters for the file, press the ENTER key. The file confirmation screen will
appear. Press ENTER, again, for confirmation to create the file, or press STOP to abort the process.
file00 created
<enter> <stop>
Close a File
Closing a file will move all temporary records to the file system. This will keep the records from being lost
should the battery be unplugged while the instrument is on. It may also assist in downloading the temporary
records to a PC.
Set-Up Instrument
The CI-202 has a number of utility functions that allow the user to manage the instrument’s capability.
These functions are accessed using the setup mode. When the instrument is in the setup mode, the top line of
the display reads “Setup” on the left and one of the words “Measure”, “scanner”, “auto save”, or “storage”
on the right. The bottom line of the display reads “enter” on the left and the direction arrows on the right.
Setup Measure
<enter>
The options are:
To select another mode using the up or down arrow keys
To select an area to set-up using the right or left arrow keys
To begin the set-up process by pressing the START/ENTER key
Set-Up Measure Parameter
Pressing the START/ENTER key when the “Setup Measure” is displayed on the top line allows the unit to
select between Leaf Area or Root length modes.
Measure = Leaf
<stop><save>
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Use the up or down arrow keys to modify the value. Once satisfied with the set-up parameters, press the
SAVE key. To avoid saving the parameters, press the STOP key to abort the process.
Set-Up Scanner Thresholds
NOTE: Normally, there is no need to adjust the threshold of the CI-202 because the instruments are
factory-adjusted to a threshold level that is ideal for “all-around” use.
Manual Threshold Adjustment
First, adjust the threshold with the CI-202 over the reflective tape of the scan board. Select “Setup Scanner”
in the display window and press START. Select “HiThrld” and press START again. Write down the
threshold value displayed. Place a piece of white paper so it covers about half of the laser scan area starting
at the right hand side (away from the rail). Select “LoThrld” and press START. Again, write down the
threshold value displayed.
First, calibrate the instrument alone with the instrument over the reflective tape of the scan board. Select
“Setup-Scanner” from the menu, then select “Manual” and press ENTER. The motor should spin and the
laser should come on. The display should show something like this:
T = 47 w = 0
<stop>
The “t” value is the threshold and the “w” is the width (in pixels) that the instrument is reading. Use the
up/down arrows to adjust the “t” value to 10 above the LoThrld value you wrote down above. The HiThrld
value must be at least 15 more than the new “t” value.
Press STOP to shut off the laser and motor, press STOP again and press SAVE if you want to keep the new
threshold. Press the down arrow to get back to the Measure display. Press both the left and the right arrows
at the same time. The CI-202 will turn on the laser for a short period while it measures the width. Press the
up arrow and then the ENTER key to get back into the setup scanner menu. Press the SAVE and STOP keys
at the same time. A new display will appear that allows you to see the precharge and other factory settings.
Do not make any changes to these settings. Press STOP and then STOP again. The instrument will ask Save
changes? Press SAVE. Test the instrument to see if it is working.
If the instrument malfunctions after manual threshold adjustment, contact CID, Inc. for assistance.
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Set-Up Storage (check space or erase)
Pressing the START/ENTER key when “Setup storage” is displayed on the top line indicates the unit is in
the storage setup mode. It will always start by indicating the total amount of storage space that is in the
instrument for files and data.
The top line of the display will read “space =” to the left, and the number of bytes to the right (16 bytes are
used per measurement record). The bottom line of the display will read “stop” on the left, and the up and
down arrows on the right. Press the stop key to escape this mode, or the up and down arrow keys to reach
the format storage menu.
.
space = 128k
<stop>
Pressing the START/ENTER key when “format storage” is displayed on the top line indicates the unit is in
the storage format mode. Be careful! Formatting the storage space of the CI-202 will erase all data and all
files. This is convenient when starting a new year’s work, for example, but treat this command with care.
In the format storage mode the top line of the display will read “Clear all data”. The bottom line of the
display will have the word “stop” to the left and “enter” to the right.
Clear all data
<stop> <erase>
To delete every file in your instrument, press the ENTER key. The instrument will erase all data from
memory, leaving the maximum possible amount of memory for use. To stop the deleting process, press the
STOP key.
NOTE: When there are no files to store data to, the measurement menu items will not be available. To
correct this situation, create a file.
Set-Up Auto Store Parameter
Pressing the START/ENTER key when “Setup auto store” is displayed indicates the unit is in the setup auto
store mode. This allows the user to set-up the instrument to automatically store measurements, and to start a
new measurement without explicitly saving the old one. This mode is convenient when taking fast,
repetitive measurements and when it is not necessary to review each measurement.
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In the auto store setup mode, the top line of the display will read “auto store =” on the left and either “yes”
or “no” on the right. The bottom line of the display will read “stop” and “save” and the directional arrows.
auto save = yes
<stop> <save>
To set the instrument up to automatically store measurements press, the UP arrow key to bring the word
“yes” onto the display, then press the SAVE key to save the configuration. To set the instrument up to
automatically discard measurements, press the DOWN arrow key to bring the word “no” onto the display,
then press the SAVE key to save the configuration. To avoid changing the configuration, press the STOP
key.
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Calibrating the CI-202
Occasionally the CI-202 needs to have the timing parameters re-computed or the threshold adjusted to bring
the instrument back to measuring accurately. Each time a parameter is adjusted on the CI-202, the
instrument should have its timing parameters re-computed the next time it is powered on. The CI-202 can
require adjustment after extensive use in the field or downloading/updating firmware. The recalibration is
very quick and simple. After recalibrating, the high and low thresholds should be checked and readjusted if
necessary.
Power the instrument on. The image below should be displayed on the instrument’s screen.
Press the LEFT and RIGHT arrow keys at the SAME time.
The motor will begin to start-up and spin. This step is quick and the motor typically spins for about
four seconds.
Next, the motor will stop spinning. During this time, the display on the screen does not change.
Scan a leaf or piece of paper of known size to test the accuracy of the instrument.
The high and low thresholds should be checked and adjusted if necessary.
CI-202 Threshold Set-up Procedure
The instructions below begin with checking the filter of the unit. This is done in Root Mode (steps 1-14).
Next, the thresholds are checked and adjusted for Root Mode (steps 15-27). Beginning at Step 28, the unit
is switched to Leaf Mode. The procedure can be started at Step 28, but it is recommended to perform all the
steps all the way through. The Leaf Mode section (steps 28-43) explains how to check and set the
thresholds for leaf measurements. If the scanner is not providing an accurate width reading, steps 44-47
provide the instructions for accessing and adjusting the Scan Width of the unit. If the length measurements
are not correct, steps 48-52 focus on adjusting the Step Length, which is very important for instrument
accuracy.
1) Turn unit on by pressing the POWER button.
2) Use the UP or DOWN arrow to scroll until you see “Set-up Auto save”
3) Use the RIGHT arrow to scroll to “Set-up Measure.” Press ENTER.
4) Use the UP or DOWN arrow to get to “Measure Root.” Press SAVE. The screen will flash
“measure root saved.” Then the screen will show “Set-up Measure.”
5) Use the RIGHT arrow key to scroll to “Set-up Scanner.” Press ENTER. You will see “Hithld
Scan.”
6) Use the UP or DOWN arrows to scroll to “filter scan.” Press ENTER. You will see “Filter on On
or Off”
Measure file01
<start>
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7) Use the UP or DOWN arrow key to get to “Filter off.” Press STOP TWICE and then SAVE. The
screen will flash “Root params saved” indicating that the root parameters have been saved. This
will turn the filter off and save the changes.
8) The screen will come up “Set-up Scanner.” Press ENTER.
9) Use the UP or DOWN arrow key to get to “Manual Scan.” Press ENTER.
10) You will hear the motor start and the laser line will come on.
11) With the laser line over the reflective material only watch the “w” value. It should read the value
as w = 1.
12) When you MOVE the laser scanner over the inspection standard, the “w” value should read 2.
Press STOP. The inspection standard is a piece of white paper with known length and width.
13) Use the UP or DOWN arrow to scroll to “Filter Scan.” Press ENTER.
14) The value in the bottom center of the screen should read 1.
15) Using the UP or DOWN arrow, turn the filter on and press STOP TWICE and SAVE (the screen
will flash “Root params saved”). This will turn the filter on and save the setting. The screen will
come up “Set-up scanner.” Press ENTER
16) Use the UP or DOWN arrows to get to “HiThld Scan.” Press ENTER.
17) You will see the “t” value and “w” value change. Watch the t value closely. The “t” value will go
down, then stop and set itself. Note the number it stops and sets at and write down the number
setting. It should settle below 50, with somewhere in the 20’s being desirable.
18) Use the UP or DOWN arrow keys to get to the “LoThld Scan.” Place a piece of white paper
under the scan area on the right edge.
19) Press ENTER.
20) Again the “t” value will go down. The low threshold will also stop and set itself like the high
threshold did in step 17. Write down and note the number setting.
21) Add the HiThld setting number and the LoThld setting number and divide by 2. This will give
you your average setting number. Write down and note the number. Remove the white paper
from under the scanner.
22) When you have this information use the UP or DOWN arrow keys to scroll to “Manual Scan.”
Press ENTER.
23) The motor will start and you will see the “t” and “w” settings appear. Use the UP or DOWN
arrow keys to adjust your “t” value to your average setting number (from step 21).
24) Press STOP TWICE and then SAVE. This will save your threshold settings.
25) Use the DOWN arrow key to get to “Measure file01.” Make sure the scan area is clean and clear.
26) With the laser over the reflective material only, press the RIGHT and LEFT arrows
simultaneously. You will hear the motor run briefly and stop. DO NOT MOVE THE SCANNER
WHILE IT IS RUNNING.
27) Press the RIGHT and LEFT arrow keys simultaneously one more time. This will calibrate the
unit for the Root Mode. (Note: You will follow the same instructions shortly to calibrate the
instrument in Leaf mode).
28) Use the UP or DOWN arrow to get to the “Set-up Scanner” and then the RIGHT arrow to get to
“Setup Measure.” Press ENTER.
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29) Use the UP or DOWN arrows to change the setting to “Measure Leaf.” Press SAVE. The screen
will flash “Measure = leaf saved.”
30) Use the UP or DOWN arrow to get to “Set-up Measure.”
31) Use the RIGHT or LEFT arrow to get to “Set-up Scanner.”
32) Press ENTER.
33) Use the UP or DOWN arrow to get to “HiThld Scan.” Press ENTER.
34) You will see the “t” value on the left and the “w” value on the right. The values will drop. Watch
the “T” value and note when the numbers stop and the setting is locked. Note and write down the
number.
35) Use the UP or DOWN arrow to get to “LoThld Scan.” Place a white sheet of paper under the scan
area. Press ENTER.
36) You will notice again the “t” value will drop. Note and write down the number
37) Add the two threshold values together and divide by 2. This will give you the average. Remove
the white paper.
38) Use the UP or DOWN arrow to get to “Manual Scan.” Press ENTER.
39) Using the UP or DOWN arrow, adjust the “t” value to the average setting computed in step 37.
40) Press STOP TWICE and then press SAVE. This will save your threshold setting for the Leaf
mode (the screen will flash “Leaf params saved” indicating that the changes made to the leaf
parameters were saved).
41) Press the DOWN arrow until the screen displays “Measure file01.”
42) Press the LEFT and RIGHT arrows simultaneously. This will compute the Timing parameters for
the unit. REPEAT this step.
43) The display should read “Measure file01.”
44) Use the UP arrow key scroll to “Set-up Scanner.” Press ENTER.
45) Press the SAVE and STOP buttons at the SAME time. This will take you to the hidden menu.
46) Once in the hidden menu, use the RIGHT arrow key to get to “Scan width.” Press ENTER. The
motor and laser will turn on. MOVE the scanner onto the standard. Using the UP or DOWN arrow
keys, adjust the scan width (the top number) until the width in mm displayed on the screen is the
same as the width of the standard paper you are using. Press STOP THREE times and then press
SAVE. This will save your adjustments. MOVE the unit down to where the laser line is only
over the reflective material.
47) Press the DOWN arrow one time to get to “Measure File01.” Press ENTER and take a
measurement of the standard. Press the RIGHT arrow key to get to the length reading. If the
measurement is correct for the length, no further adjustments are needed. If the measurement is
incorrect “Step length” adjustments will be necessary while in the hidden menu. Press STOP.
48) To get to hidden menu REPEAT steps 43 thru 45.
49) Once there, use the RIGHT arrow key to get to “Step Length.” If your readings were low, you
should raise the step length setting. If the measurements were high, you should lower the step
length setting. Once you have made your adjustments, press STOP TWICE and SAVE to save the
adjustments.
50) Press the DOWN arrow to get back to “Measure file01.”
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51) REPEAT steps 47 thru 49 as needed to calibrate the instrument to the correct length of the
standard and the correct width of the standard.
52) Once you have calibrated the unit to read the correct measurements of the standard you are ready
to take measurements with the CI-202.
Re-compute the timing parameters of the CI-202 by pressing the LEFT and RIGHT arrow at the same time
from the Measure Menu after adjusting the threshold.
CHARGING THE BATTERY
When “Low Battery” is displayed, the battery is discharged below the recommended operating level.
Measurements may continue for another 15 minutes; however, we recommend the battery be recharged as
soon as possible. To charge the battery, plug the instrument into a computer USB port or the supplied
charger. The instrument should be turned on while plugged into the USB port of a computer to get the
fastest charging. Charge for at least 14 hours to get full charge on the batteries. Storing a battery in a
discharged state could permanently damage it.
Care and Cleaning
Treat the CI-202 as any other fine optical instrument. Keep the lens clean and free from scratches. When not
in use, keep the instrument in its protective case. Use only a mild detergent and damp cloth to clean the
exterior areas of the instrument. Use a high quality lens cleaning cloth to clean the window. Do not
submerse or use an overly wet cloth to clean the instrument. Do not drop the instrument.
For an extended storage period, we recommend storing the instrument in a cool and dry place.
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THEORY OF OPERATION
Overview of the Parts of the Instrument
The CI-202 consists of a number of sub-systems. It has a laser width scanner that is capable of measuring
the width of an object in its objective 500 times a second to a resolution of 0.1 mm. The entire instrument is
controlled by a microcomputer system that allows the user unparalleled flexibility in configuring the
instrument to make measurements accurately, easily and quickly.
The Width Scanner
When the instrument is in the scanning mode, a rotating mirror causes a laser beam to scan across the
objective 500 times a second. This beam is reflected off the special surface of the scan board and received
by a light sensor inside the unit. The level from this sensor is compared to a threshold. The output of the
“comparator” is fed to the microcontroller, which monitors the intervals during the width scan.
Computing the Parameters
The CI-202 measures only two parameters directly: width and length. From these it derives area, perimeter,
aspect ratio, and shape factor from each scan.
Each time the meter senses the leaf has progressed 1 mm, the computer will check if the width reading is a
non-zero value.
If the width measurement is non-zero, the computer takes the following actions:
The width measurement is added to the area accumulator.
If the width measurement is greater than the currently stored maximum width, the maximum width
is updated.
The perimeter increment is calculated and added to the perimeter accumulator. This perimeter increment is
calculated using the function:
If the width measurement reaches zero and the instrument is not operating as part of the conveyer
attachment, the measurement stops and is displayed.
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Computing Aspect Ratio and Shape Factor Information
Aspect ratio and shape factor information can be easily determined from other calculated values. These
derived quantities are not stored but calculated, whenever necessary, for the purposes of display or data
dumping. The calculations used are shown below.
Aspect ratio is the ratio of the leaf length to its maximum width. It can be calculated from the equation:
Shape factor is the ratio of the leaf area to the leaf perimeter, corrected so that the shape factor of a circle is
equal to one. It can be calculated from the equation:
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TROUBLESHOOTING
Updating the Firmware
If the firmware on the CI-202 needs to be updated or is deleted, follow the steps below to reload the
firmware onto the CI-202.
1. Download the ‘CI-202 Firmware UpdateV308 and Driver.zip’ from the software page:
https://www.cid-inc.com/support/CI-202/software/
2. Extract all
You should now have folder contents as follows:
3. Connect the CI-202 to your computer and power on
4. In the download folder, double click on the ‘downloadV308toCI202.exe’
5. In the software window, select File > Open
You should see the following:
6. Select cid-202V308.s19 > Open
At this point, the CI-202 will start to beep until the firmware is loaded.
Upon completion, you will see ‘leaving OPEN’, and the unit will be powered off
7. Power the instrument on.
The image below should be displayed on the instrument’s screen
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8. Press the LEFT and RIGHT arrow keys at the SAME time, the motor will begin to start-up
and spin
Next, the motor will stop spinning, during this time, the display on the screen does not
change.
9. Scan a leaf or piece of paper of known size to test the accuracy of the instrument, the high
and low thresholds should be checked and adjusted if necessary.
Technical Support
If you have a question about the CI-202 features and functions, first look in the CI-202 Instruction Manaul.
If you cannot find the answer, you can access troubleshooting information and the CI-202 Product Support
Forum at:
http://www.cid-inc.com/leaf-area/ci-202-support.php
Questions can also be directed to a Technical Support Representative located in your country. CID Bio-
Science, Inc. is committed to provide customers with high quality, timely technical support. Technical
support representatives are to answer your technical questions by phone or by e-mail at:
support@cid-inc.com.
CID Bio-Science, Inc.’s contact information:
CID Bio-Science, Inc.
1554 NE 3rd Ave
Camas, WA 98607 USA
Phone: 800-767-0119 (U.S. and Canada)
360-833-8835
Fax: 360-833-1914
Internet: http://www.cid-inc.com
E-mail: support@cid-inc.com
Customer Service
Customer Service Representatives answer questions about specifications and pricing, and sell all of the CID
Bio-Science, Inc. products. Customers sometimes find that they need CID Bio-Science, Inc. to upgrade,
recalibrate or repair their system. In order for CID Bio-Science, Inc. to offer these services, the customer
must first contact us and obtain a Return Merchandise Authorization (RMA) number. Please contact a
customer service representative for specific instructions when returning a product.
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