LaMotte COD3 Plus User manual

1925-MN-V3
10.10.18
1925-MN-V3.indd
COD3 Plus
Colorimeter
Operator’s
Manual
Firmware Version 2.10 and greater
PO Box 329 • Chestertown • MD • 21620
800-344-3100 • 410-778-3100
www.lamotte.com
Warning! This set contains chemicals
that may be harmful if misused. Read
cautions on individual containers
carefully. Not to be used by children
except under adult supervision.

CONTENTS
COD3 Plus
Kit Contents............................................................................................................................................ 5
Accessories............................................................................................................................................. 5
General Testing Procedures................................................................................................................ 6
Testing with LaMotte Pre-Programmed Tests............................................................................... 6
Calibrating LaMotte Pre-Programmed Tests.................................................................................8
SET UP
Setting the Clock.................................................................................................................................11
Logging Data........................................................................................................................................12
Factory Setup.......................................................................................................................................13
Setting Power Save.............................................................................................................................13
Setting Backlight Time ......................................................................................................................14
Selecting A Language.........................................................................................................................15
Looping Menus.....................................................................................................................................16
COMPUTER CONNECTION
Output....................................................................................................................................................17
Computer Connection........................................................................................................................17
BATTERY
Battery/AC Operation .........................................................................................................................17
Battery Replacement .........................................................................................................................18
MAINTENANCE
Cleaning.................................................................................................................................................18
Repairs...................................................................................................................................................18
Meter Disposal .....................................................................................................................................19
GENERAL OPERATING INFORMATION
Overview ................................................................................................................................................19
General Operating Information........................................................................................................19
The Keypad............................................................................................................................................20
The Display and Menus ......................................................................................................................20
Tubes and Chambers..........................................................................................................................22
Sample Holders ...................................................................................................................................23
Sample Dilution Techniques.............................................................................................................23

GENERAL INFORMATION
Packaging and Delivery......................................................................................................................24
General Precautions ...........................................................................................................................24
Safety Precautions .............................................................................................................................24
Limits of Liability.................................................................................................................................24
Specifications ......................................................................................................................................25
CE ........................................................................................................................................................26
IP67 ........................................................................................................................................................26
Warranty................................................................................................................................................26
Register Your Meter............................................................................................................................26
TROUBLE SHOOTING GUIDE
Error Messages....................................................................................................................................27
Calibration.............................................................................................................................................27
Stray Light ............................................................................................................................................27
Troubleshooting Guide .......................................................................................................................28
TEST PROCEDURES (ALPHABETICAL ORDER)

COD3 Plus Colorimeter 10.18 5
CONTENTS AND ACCESSORIES
Contents
COD3 Plus Colorimeter
Test Tubes, with Caps Code 0290
COD/UDV Adapter Code 1724
USB Wall Adapter Code 1721
USB Cable Code 1720
COD3 Plus Colorimeter Manual
Accessories
Test Tubes, with Caps Code 0290-6
Replacement Chamber Code 3-0038
USB Cable Code 1720
USB Wall Adapter Code 1721
COD/UDV Adapter Code 1724
Car Charger Code 5-0132
Small Field Carrying Case
(37.5 27.5 x 13.75 cm)
Code 1910-GCS150
Large Field Carrying Case
(45 x 32.5 x 20 cm)
Code 1910-GCS440

6 COD3 Plus Colorimeter 10.18
GENERAL TESTING PROCEDURES
The following is a step-by-step example of how to run tests from the Testing Menu.
These test procedures are designed to be used with LaMotte SMART Reagent Systems.
LaMotte Company continuously updates the list of pre-programmed tests as the
calibrations become available. Call LaMotte Technical Services at 1-800-344-3100
(410-778-3100 outside the USA) or email at [e-mail] for a current list of
available calibrations.
TESTING WITH LaMOTTE PRE-PROGRAMMED TESTS
1. Press and briefly hold to
turn the meter on. The LaMotte
logo screen will appear for about
3 seconds and the Main Menu
will appear.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
2. Press
ENTER to select Testing
Menu.
All Tests
006 Ammonia-N LRF
007 Ammonia-N LRS
008 Ammonia-N HR
014 Boron
12:00:00 001/500
3. Press or to scroll to
the desired test.
All Tests
006 Ammonia-N LRF
007 Ammonia-N LRS
008 Ammonia-N HR
014 Boron
12:00:00 001/500
4. Press
ENTER to select the
test.
007 Ammonia-N LRS
Scan Bank
Scan Sample
12:00:00 001/500

COD3 Plus Colorimeter 10.18 7
5. Insert the blank into the
chamber. Close the lid.Press
ENTER to scan the blank. The
screen wil display Scan Blank
Blank Done for about 1 second
and then return to the test
menu.
007 Ammonia-N LRS
Scan Blank
Scan Sample
12:00:00 001/500
6. Insert the reacted sample into
the chamber. Close the lid. Press
ENTER to scan the sample. The
screen will display Scan Sample
Sample Done for about 1
second. The result will appear on
the screen.
007 Ammonia-N LRS
1.00 ppm
Scan Blank
Scan Sample
12:00:00 001/500
To repeat the test, press ENTER
to scan the sample again. The
last blank scanned is used by the
colorimeter for repeated scans.
A different blank can be used by
pressing or to scroll
to Scan Blank and then scanning
another blank. Scroll with or
and make another selection
with ENTER . The %T or Absorbance
of the last test can be viewed by
scrolling down and choosing %T/Abs.
Press EXIT to escape to previous
menus.
NOTE: The menus loop in this screen
so either or will lead to
the menu selection needed.
007 Ammonia-N LRS
1.00 ppm
Scan Bank
Scan Sample
12:00:00 001/500

8 COD3 Plus Colorimeter 10.18
CALIBRATING LaMOTTE PRE-PROGRAMMED TESTS
The LaMotte Pre-Programmed Tests have been pre-calibrated. Recalibration of
the pre-programmed tests by the user is not possible. However, a procedure to
standardize the calibration can be performed to obtain the most accurate readings or
to meet regulatory requirements.
The LaMotte Pre-Programmed tests are standardized with one standard solution. To
standardize over the full range of the test, the concentration of the standard should
be chosen from the high end of the range. Alternatively, if samples do not cover the full
range of the test, a standard should be chosen that is close to the concentration of
the samples.
The standardization procedure should be followed as often as required by regulations
and laws for compliance monitoring.
In the example below, the Aluminum calibration will be standardized.
Prepare a standard solution to be tested. In this example, 0.30 ppm ammonia
nitrogen.
1. Press and briefly hold to
turn the meter on. The LaMotte
logo screen will appear for about
3 seconds and the Main Menu
will appear.
Main Menu
Testing Menu
Editing Menu
12:00:00 001/500
2. Press
ENTER to select Testing
Menu.
Testing Menu
006 Ammonia-N LRF
007 Ammonia-N LRS
008 Ammonia-N HR
014 Boron
12:00:00 001/500
3. Press or to scroll to
the desired test factor.
All Tests
006 Ammonia-N LRF
007 Ammonia-N LRS
008 Ammonia-N HR
014 Boron
12:00:00 001/500

COD3 Plus Colorimeter 10.18 9
4. Press
ENTER to select the
test.
007 Ammonia-N LRS
Scan Blank
Scan Sample
12:00:00 001/500
5. Follow the test procedure in the
manual to test the prepared
standard. Insert the blank into
the chamber. Close the lid. Press
ENTER to scan the blank. The
screen will display Scan Blank
Blank Done for about 1 second
and then return to the Test
Menu.
007 Ammonia-N LRS
Scan Blank
Scan Sample
12:00:00 001/500
6. Insert the reacted standard
solution into the chamber. Close
the lid. Press ENTER to scan the
sample. The screen will display
Scan Sample Sample Done for
about 1 second. The result will
appear on the screen.
007 Ammonia-N LRS
0.28 ppm
Scan Blank
Scan Sample
12:00:00 001/500
7. The displayed result can now be
standardized. Press or
to scroll to Calibrate.
007 Ammonia-N LRS
0.28 ppm
%T/Abs
Calibrate
12:00:00 001/500
8. Press
ENTER to select Calibrate.
A reverse font (light background
with dark characters) will appear
to indicate that the reading can
be adjusted.
007 Ammonia-N LRS
0.28 ppm
, =Edit, ENTER=Save
+ENTER=Default
12:00:00 001/500

10 COD3 Plus Colorimeter 10.18
9. Press or to
adjust the value shown to the
concentration of the prepared
standard, 0.30 in this example.
NOTE: A maximum adjustment
of 25% is possible.
007 Ammonia-N LRS
0.30 ppm
, =Edit, ENTER=Save
+ENTER=Default
12:00:00 001/500
10. Press ENTER to save the value.
To leave the Calibration
procedure without saving the
adjustment, press EXIT .
Press and ENTER at any
time to return to the default
value.
The calibration has now been
standardized and can be used
for testing. Scroll to Scan Blank
and begin testing.
007 Ammonia-N LRS
0.30 ppm
%T/Abs
Calibrate
12:00:00 001/500