Visible Spectrophotometer
Description
Description
721G & 722G Visible Spectrophotometer
Feature:
* Sample compartment for 5-100mm cells (optional).
* Equipped with RS232 port.
* Precise automatic T/A changeover.
* Dedicated printer optional.
* Automatic zero and full scale adjustment.
* Software optional.
* Direct concentration read-out and concentration factor setting function.
Spec:
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Specifications |
721G |
722G |
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WL range (nm) |
340-1000 |
325-1000 |
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WL accuracy |
≤2nm |
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WL repeatability |
≤1nm |
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Spectrum bandwidth |
5nm |
5nm |
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Transmittance accuracy |
±0.5% (t) (NBS930D) |
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Transmittance repeatability |
≤0.2% (t) |
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Transmittance measuring range |
0-100T |
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Absorbance measuring range |
0-2A |
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Stray light |
≤0.5% (t) (at 360nm, NaNO 2 ) |
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Drift |
≤0.5% (t)/3min |
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Signal noise |
0.2T% |
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RS232 |
including |
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Cell holder |
50mm |
50mm |
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Power supply |
220V 50Hz (220V/110V optional) |
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Double Beam Spectrophotometer
Description
SP-1920 Double Beam UV-visible Spectrophotometer
The SP-1920 is a double beam spectrophotometer. The SP-1920, which inherits strongpoint of all mature productions, and also uses the classic double-beam theory, makes the test result more precise, stable and reliable.
The SP-1920 is ideal to widely use most of test filed such as clinical laboratory, biochemical laboratory, pharmacy, petrol chemical laboratory, environmental protection and various fields of quality control.
This user's manual provides the description of the SP-1920, a list of main specifications, functions introduction and usual operations. Available accessories.
This instrument is compact, easy-to-use, and ruggedness. The large sample compartment accepts various accessories and cell from 10mm to 100mm path length. The built-in RS-232 serial interface enables the instrument to be connected to a computer.
Now we mainly export SP-1920 Spectrophotometer, which has 6.4inch touch screen for operation.
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MODEL |
SP-1920 |
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Type |
Double Beam Asymmetrical Vertical Test Optical Path Technology (patent) |
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Monochromator |
Czerny-Turner Focus 300 |
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Grating |
45*45mm, 1800 lines/mm |
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dectector |
High performance digital dual-detector photoelectric cell |
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bandwidth(nm) |
0.5, 1, 2, 4 |
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wavelength range(nm) |
190-1100 |
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wavelength display(nm) |
0.1 |
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wavelength set(nm) |
0.1 |
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wavelength accuracy(nm) |
±0.50 |
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wavelength repeatability(nm) |
≤0.3 |
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Scan speed(nm) |
wavelength move speed 6000nm/min,wavelength scan speed 10-3000nm/min |
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light source switch(nm) |
300-360 |
|
stray light (@20 & 340nm) |
≤0.05%T |
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optical structure |
double beam |
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Photometric mode |
A (Abs), T (%T), Energy (E) |
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Photometric range |
0-200%T(T), -0.3~4A, 0°C ~ 9999°C(0-9999F) |
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Photometric accuracy |
±0.3%T NIST930e standard filter |
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Photometric repeatability |
0.002Abs(0.5-1Abs) |
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Steability |
±0.0004A/Hour (at 500nm one hour preheat) |
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Base line |
±0.0005A |
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Drift |
0.0004A/H(Bandwidth 2nm, low scan speed) |
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Display |
6.4inch big touch operation screen (can connect to computer) |
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Operation |
Touch screen |
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spectrum scan |
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time scan |
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standard curve |
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photometric analysis |
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Application software |
win-sp5.2 for 1920 |
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Signal output |
USB, RS-232C |
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Sample compartment(mm) |
225*114 (length*width) |
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Standard cell holder (mm) |
2*10 (1 position) |
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Standard glass cell (mm) |
10 pcs |
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Standard quartz cell (mm) |
10 pcs |
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Power requirement |
110/220VAC, 50/60Hz
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