OPERATION OF THE SMART SPECTRO
n
OVERVIEW
The SMART Spectro is a portable, microprocessor controlled, direct reading,
single beam spectrophotometer. It has a 4 line, 20 character liquid crystal display
for 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 25 “User Tests”. The spectrophotometer is also capable of running
%T/Absorbance tests over the entire wavelength range of 350 - 1000 nm. The
LaMotte tests are precalibrated for LaMotte reagent systems. The
spectrophotometer displays the results of these tests directly in units of
concentration. The 25 “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 a quartz halogen bulb as a light source with a minimum life
expectancy of 1000 hours. The incident white light is dispersed into its
component wavelengths by a 1200 lines/mm ruled grating. The microprocessor
controls the positioning of the grating, automatically positioning the grating to
the correct wavelength for the test that has been selected. The monochromatic
light is passed through the sample cell and is detected by a silicon photodiode.
The SMART Spectro is powered by an AC adapter that automatically
recognizes the input voltage (110/220V) and converts it to the 12V needed to
run the instrument. An optional battery pack is available for use where
portability is important. To save power an automatic shut-off feature can be
utilized (Energy Savings Mode).
A RS-232 serial port on the back of the spectrophotometer, and optional
software, allows the spectrophotometer 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 Spectro is ideal for lab and field use.
n
POWER SOURCE
To use the SMART Spectro with an AC power supply:
1.
Plug the Power Supply into the AC Adapter socket on the back of the
SMART Spectro.
2.
Connect the Power Cable to the Power Supply and an electrical outlet.
To use the Battery Pack, see page 45.
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