Visible Spectrophotometer Specification:
| Model | SP-V721E | SP-VP722 | SP-VS23 |
|---|
| Optical System | Single Beam
|
| Wavelength Setting | Manual Turn Knob |
| Display | Digital LCD | Digital LED |
| Band Width (nm) | 6 | 4 | 12 |
| Wavelength Range (nm) | 350–1020 | 320–1000 | 340–950 |
| Light Source | Halogen-Tungsten Lamp |
| Wavelength Accuracy (nm) | ±2 | ±2.5 |
| Wavelength Reproducibility | 1 nm |
| Stray Light | ≤0.3％ (T) | ≤0.2%(T) |
| Photometric Accuracy | ±1% (T) | ±0.5% (T) | ±2%(T) (tube), ±0.5%(T) (cuvette) |
| Scanning Speed | No |
| Interface | RS232 serial | RS232 serial & parallel l interface
|
| Software | Optional |
| Power Supply | AC 220/110 V, 50/60 Hz | 220/110±10%V, 50/60 Hz |
| Consumption (W) | 50 | 80 | 45 |
| External Size (W×D×H)(mm) | 420×350×185 | 450×420×280 |
| Shipping Size (W×D×H)(mm) | 530×460×310 | 460×430×320 |
| N.W./G.W. (kg) | 7/10 | 7/10 | 6/10 |
Visible Spectrophotometer Feature:
SP-VP722 spectrophotometer is a compact and easy-to-operate instrument. We can apply it to the measurement of transparent materials' transmittance and absorbance and the concentration's direct reading. They are widely used in clinical testing, petrochemical, health medicine, environmental monitoring, biochemistry and other fields.
Aspherical light source optics, curny-terner configuration diffraction grating monochromator.
Simple and clear keyboard operation, easy to realize automatic 0%T and 100%T adjustment T/A transformation, coefficient setting, and concentration direct readout function.
RS232 parallel interface.
With RS232 serial interface, optional micro-printer to print data directly.
Spacious sample chamber, 4-position cuvette holder, can be adapted to 1-5 cm optical path rectangular cuvettes.
FAQ for Visible Spectrophotometer:
Q1: Visible spectrophotometer or UV-visible spectrophotometer?
A1: The core difference between the two lies in the testing wavelength range.
Visible spectrophotometers measure 320/340–1100 nm;
UV-Vis spectrophotometers extend the measurement range to the ultraviolet region: 190–340 nm;
For samples exhibiting visible light absorption under budget constraints, visible spectrophotometry offers the most cost-effective and practical solution.
Q2: For which industries can a visible spectrophotometer be used for routine testing?
A2: Visible spectrophotometert has a wide range of applications:
1. Environmental monitoring: Detecting total phosphorus, total nitrogen, ammonia nitrogen, COD, and heavy metals in water.
2. Agriculture and soil fertilizer: Detecting available phosphorus, available potassium, and organic matter content, supporting precision agriculture.
3. Food and beverage quality inspection: Detecting nitrite and sulfur dioxide residues in food, color of colored beverages, and purity of fruit juices.
4. University teaching laboratories: Chemical experiment teaching and demonstration of spectrophotometric principles.
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