Spectrophotometers
The four spectrophotometers in the SP-300 series range are models SP-300-VIS and SP-350-VIS which cover the visible region of the spectrum, and models SP-300-UV and SP-350UV which use a flash xenon lamp to extend the wavelength range into the UV region of the spectrum.
Basic models, SP-300-VIS and SP-300-UV, feature measurement modes, percent transmittance, absorbance and concentration. Advanced models, SP-350-VIS and SP-350-UV, include the basic features plus scanning, kinetics and quantitation.
Improved Optics
The SP-300 series models have improved optics resulting in a narrow spectral bandwidth of 5 nm and an absorbance range of -0.3 to 2.5 Abs.
- The SP-300-UV and SP-350-UV models use a ‘press to read’ xenon lamp to give more accurate readings and extend lamp life.
- The SP-300-VIS and SP-350-VIS models have a tungsten halogen lamp with a lamp save feature which enables the lamp to be turned off automatically after periods of inactivity.
Specifications
| Parameter | SP-300 VIS | SP-300 UV |
|---|---|---|
| Wavelength Range | 320 to 1000nm | 198 to 1000nm |
| Light source | Tungsten halogen lamp | Xenon lamp |
| Resolution | 1nm | 1nm |
| Accuracy | ± 2nm | ± 2nm |
| Repeatibility | ± 0.5nm | ± 0.5nm |
| Spectral bandwidth | 5nm | 5nm |
| Transmittance | 0 to 199.9% | 0 to 199.9% |
| Absorbance | – 0.300 to 2.500 A | – 0.300 to 2.500 A |
| Accuracy | ± 1%T, ± 0.01Abs at 1.000 Absorbance | ± 1%T, ± 0.01Abs at 1.000 Absorbance |
| Resolution | 0.1%T, 0.001A | 0.1%T, 0.001A |
| Concentration Range | – 300 to 9999 | – 300 to 9999 |
| Concentration Resolution | selec table 1/ 0.1/ 0.01/ 0.001 | selec table 1/ 0.1/ 0.01/ 0.001 |
| Concentation Calibration | Blank with a single standard or factor | Blank with a single standard or factor |
| Concentration Units | no units, %, ppm, EBC, SRM, mEq/l, mEq, M, mM, µM, nM, U, U/l, U/ml, g/l, mg/l, µg/l, ng/l, g/dl, mg/dl, µg/dl, mg/ml, µg/ml, ng/ml, µg/ul, ng/ul, mol/l, mmol/l |
no units, %, ppm, EBC, SRM, mEq/l, mEq, M, mM, µM, nM, U, U/l, U/ml, g/l, mg/l, µg/l, ng/l, g/dl, mg/dl, µg/dl, mg/ml, µg/ml, ng/ml, µg/ul, ng/ul, mol/l, mmol/l |
| Concentration Factor | 0.001 to 10.000 | 0.001 to 10.000 |
| Concentration Standard | 0.001 to 1000 | 0.001 to 1000 |