LaMotte SMART 2 Electronic Soil Lab - Manual (Page 14)

OPERATION OF THE
SMART 2 COLORIMETER
n
OVERVIEW
The SMART 2 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 100 LaMotte tests (not all 100 may be available at
present) 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 4 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 SMART 2 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
SMART 2 Colorimeter is ideal for lab and field use.
n
POWER SOURCE
The SMART 2 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 SMART 2 COLORIMETER MAY DAMAGE
THE METER AND WILL VOID THE WARRANTY. Do not use the
adapter sold with the original SMART Colorimeter.
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.
14 SMART2 SOIL MANUAL 1/07