Hach DR 3900 Manuel D'utilisation De Base page 108

Safety information for the correct use of the instrument:
• Do not operate the instrument in hospitals or comparable
establishments in proximity to medical equipment, like pace makers
or hearing aids.
• Do not operate the instrument near highly flammable substances,
such as fuels, highly combustible chemicals and explosives.
• Do not operate the instrument near combustible gases, vapors or
dust.
• Do not vibrate or jolt the instrument.
• The instrument can cause interference in immediate proximity to
televisions, radios and computers.
• Do not open the instrument.
• Improper use of the instrument voids the warrantee.
Chemical and Biological Safety
D A N G E R
Potential danger in the event of contact with chemical/biological materials.
Handling chemical samples, standards and reagents can be dangerous.
Familiarise yourself with the necessary safety procedures and the correct han-
dling of the chemicals before the work and read and follow all relevant safety data
sheets.
Normal operation of this instrument may involve the use of hazardous
chemicals or biologically harmful samples.
• Observe all cautionary information printed on the original solution
containers and safety data sheet prior to their use.
• Dispose of all consumed solutions in accordance with national
regulations and laws.
• Select the type of protective equipment suitable to the concentration
and quantity of the dangerous material at the respective work place.
Overview of product
The DR 3900 is a VIS spectrophotometer with a wavelength range of
320 to 1100 nm. The instrument is delivered with a complete series of
application programs and supports several languages.
The spectrophotometer DR 3900 contains the following programs and
operating types:
• Stored programs (pre-installed tests)
• Barcode Programs
• User Programs
• Favorites
• Single Wavelength
• Multi Wavelength
• Wavelength Scan
• Time course
The DR 3900 Spectrophotometer provides digital readouts in direct
concentration units, absorbance or percent transmittance.
When selecting a user-generated or programmed method, the menus
and prompts serve to direct the user through the test.
This menu system can also generate reports, statistical evaluations of
generated calibration curves and to report instrument diagnostic checks.
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