1. The product can be used for qualitative and quantitative analysis of sample materials in the near-ultraviolet-visible spectrum region. It can be widely used in chemical, pharmaceutical, biological, agricultural, petrochemical, environmental protection and other departments. It is a spectrum analysis instrument commonly used in physical and chemical laboratories. one.
Second, the product features three and a half digital display, TAC digital direct reading.
The use of a planar diffraction grating gives the instrument a high optical performance.
The wavelength display is a three-position mechanical counter that is accurate and intuitive.
The structure is reasonable and easy to repair.
Volume: 420mmX334mmX144mm
Weight: (Net.WT) 12kg
Third, the product index wavelength range: 330-900nm
Wavelength accuracy: ± 2nm
Wavelength repeatability: 1nm
Spectral bandwidth: 6nm(T)
Transmittance accuracy: ± 0.5% (T)
Transmittance repeatability: ≤0.3% (T)
Stray light: < 1.0% ( T ) at 360nm
Fourth, the operation steps
1 Purpose Purpose:
This regulation specifies the use method and precautions of the 7230G spectrophotometer to ensure the accuracy of the test results.
2 Index of technique Specifications:
Wavelength range: 330-900nm Wavelength accuracy: +2nm
Wavelength repeatability: 2nm 100%Ï„(T) Stability: +0.5Ï„(T)/3min transmittance (transmittance) Accuracy: <1.5%Ï„(T) Transmittance repeatability: 0.5Ï„(T)
Transmittance range: 0.0% Ï„ (T) 110.0% Ï„ (T) Absorbance range: -0.041-1.999
Wavelength range: 0.000-9999 (T) A conversion accuracy: 0.1% Ï„ (T)
3 procedures
3.1 Start the power switch and the instrument will display "F7230" and warm up for 30 minutes.
3.2 Adjust the wavelength knob to move the wavelength to where it is needed.
3.3 Press the "CLEAR" button and the instrument displays "YEA"
3.4 Press the "MODE" button to display the Ï„ (T) state or the A state.
3.5 Four cuvettes, the first one is placed in the reference sample, the other three are placed in the sample to be tested, the cuvette is placed in the cuvette holder in the sample cell, the clamp is clamped, and the sample cell is covered cover.
3.6 Push the reference sample into the light path and press the "100% Ï„" button until "T100.0" or "A0.000" is displayed.
3.7 Open the sample cell cover and press the "0%Ï„" button to display "T0.0" or "A E1".
3.8 Close the sample cell cover and press the "100% Ï„" button until "T100.0" or "A0.000" is displayed.
3.9 Push the sample to be tested into the optical path to display the Ï„(T) value or A value of the sample.
3.10 Press the "PRINT" button to print the data.
4 Note:
4.1 Check the wavelength for the required value before each measurement.
4.2 The cuvette is rinsed twice with the sample before the sample is filled. After the measurement, the cuvette is rinsed with distilled water and then put up. If there is a color hanging in the cuvette, it can be washed with absolute ethanol.
4.3 When loading the sample into the cuvette, if the sample flows to the outer wall of the cuvette, it should be dried with the filter paper, and the lens paper should be cleaned and then wiped with a filter paper to avoid scratches on the cuvette.
4.4 When the sample cell is open, it is not allowed to press the light blocking plate protruding from the right side of the pool to avoid damage to the photocell.
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