User Manual PEAK INSTRUMENTS INC
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2.2.10. Noise: the sum of the instrument detects the unwanted signals, which is
the purpose of the relative signal. Generally, the spectrophotometer has two
sources of noise, one from the light source, the second is derived from the
internal electronic noise inherent in the instrument, such as: power supply,
amplifier, AD conversion and the like. To reduce noise, improve signal to noise
ratio, there must be a good electrical design. Noise measurement repeatability
test under low concentrations, but also affect test accuracy. Noise by averaging
several measurements after partial elimination;
2.2.11. Drift: refers to the degree of deviation from the instrument over time the
starting value. It depends on the stability, light stability of the electrical device
and the like. Single-beam instrument, the warm-up time has a great influence
on the length of the drift.
2.2.12. Baseline flatness: refers to the distribution of the full wavelength range of
the instrument noise.
2.3. Applications
Subjects available for physics, chemistry, medicine, biology, pharmacology,
geology and other scientific research, is widely used in chemical,
pharmaceutical, biological and chemical, metallurgy, light industry, materials,
environmental protection, medicine and other industries and laboratory analysis
of the industry's most one important quality control instruments, is essential for
routine laboratory instruments.
2.4. Using conditions
Equipment should be installed away from the hot or humid environment. The
instrument should be used in 16-35 ℃, 45-80% humidity conditions. Please try
to stay away from issuing magnetic, electric, high-frequency waves of electrical
devices, do not install the instrument in the air chlorine, hydrochloric acid gas,
hydrogen sulfide gas, such as sulfurous acid gas, corrosive gas Excessive
places. Place the instrument table should be smooth, without vibrations; nearby
fan of the instrument should be left enough space to exhaust smoothly.
Instrument is best to use a single power outlet, power should ensure good
grounding. Doing so may result in equipment not working properly. If the local
voltage instability, give the instrument is equipped with power supply. The
instrument should avoid direct sunlight. Avoid dusty environments.
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