LaMotte COD Plus Colorimeter 1922-EX2 - Manual (Page 18)

OPERATION OF THE
COD PLUS COLORIMETER
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OVERVIEW
The COD PLUS Colorimeter is a portable, microprocessor controlled, direct
reading colorimeter. It has a graphical 4 line, 16 character liquid crystal display
for graphical, alphabetical and numerical messages. The operation is controlled
with the keypad through menu driven software in response to selections shown
on the display.
The test library consists of 29 LaMotte tests and 10 “User Tests”. The LaMotte
tests are precalibrated for LaMotte reagent systems. The colorimeter displays
the results of these tests directly in units of concentration. The 10 “User Tests”
may be used to enter additional calibrations. All of these tests may be arranged
in any of 3 sequences. These sequences can be modified a limitless number of
times to meet changing testing needs.
The optics feature 2 different colored LEDs. Each LED has a corresponding
silicon photodiode with an integrated interference filter. The interference
filters select a narrow band of light from the corresponding LED for the
colorimetric measurements. The microprocessor automatically selects the
correct LED/photodiode combination for a test.
A RS-232 serial port on the back of the colorimeter, and optional software,
allows the COD PLUS to be interfaced with an IBM compatible personal
computer for real time data acquisition and data storage. This port also allows
an interface with a RS-232 serial printer.
Due to its portability, alternate power sources, and rugged construction, the
COD PLUS Colorimeter is ideal for lab and field use.
n
POWER SOURCE
The COD PLUS Colorimeter uses a 6V 500 mA AC adapter. Please refer to
the Parts List for the code number for the correct adapter.
USE OF ANY AC ADAPTER OTHER THAN THE ONE SPECIFIED
FOR USE WITH THE COD PLUS COLORIMETER MAY DAMAGE
THE METER AND WILL VOID THE WARRANTY.
To use the adapter, slide the connector pin from the AC adapter into the small
hole on the left side of the meter. Plug the AC adapter into an appropriate wall
socket or power source.
18 COD PLUS COLORIMETER 6/02