721 visible spectrophotometer, 340–1000 nm wavelength range, for absorption analysis in factory, environmental and research labs.
Overview
The 721/721-100 721 Visible Spectrophotometer uses manual wavelength drive with a wavelength range of 3401000nm. It is used for absorption spectroscopy analysis of visible light and is widely applied in laboratories of factories, mines, hospitals and schools.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Wavelength drive | manual |
| Wavelength range | 340–1000nm |
| Wavelength accuracy | ±2nm |
| Wavelength repeatability | 1nm |
| Spectral bandwidth | 4nm |
| Transmittance accuracy | ±1%T |
| Transmittance repeatability | 0.5%T |
| Transmittance range | 0–125%T |
| Absorbance range | -0.301–3A |
| Stray light | ≤0.5%T @360nm |
| Drift | ±0.004A/h |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the 721 Visible Spectrophotometer comply with?
A1: The 721 Visible Spectrophotometer is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the 721 Visible Spectrophotometer be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
Overview
The 721/721-100 721 Visible Spectrophotometer uses manual wavelength drive with a wavelength range of 3401000nm. It is used for absorption spectroscopy analysis of visible light and is widely applied in laboratories of factories, mines, hospitals and schools.
Applications
• Road and highway engineering laboratory testing
• Construction material quality control and acceptance
• Research and teaching laboratories
• Third-party inspection and certification bodies
Features
• Robust construction suitable for both laboratory and field use
• Compliant with relevant Chinese and international testing standards
• Complete with calibration certificate and operation manual
Technical Specifications
| Item | Specification |
| Wavelength drive | manual |
| Wavelength range | 340–1000nm |
| Wavelength accuracy | ±2nm |
| Wavelength repeatability | 1nm |
| Spectral bandwidth | 4nm |
| Transmittance accuracy | ±1%T |
| Transmittance repeatability | 0.5%T |
| Transmittance range | 0–125%T |
| Absorbance range | -0.301–3A |
| Stray light | ≤0.5%T @360nm |
| Drift | ±0.004A/h |
Standards
GB/T, JTG, ASTM
Standard Delivery
• Main instrument unit
• Power cable
• Operation manual
• Spare parts kit
FAQ
Q1: What standards does the 721 Visible Spectrophotometer comply with?
A1: The 721 Visible Spectrophotometer is designed and manufactured in accordance with relevant Chinese national (GB) and transport industry (JTG) standards, as well as applicable ASTM and AASHTO international standards. A calibration certificate traceable to national standards is provided with each unit.
Q2: How often should the 721 Visible Spectrophotometer be calibrated?
A2: We recommend annual calibration by authorized technicians or by iRoad after-sales service center. For high-frequency laboratory use, semi-annual calibration is advised. The instrument is supplied with a factory calibration certificate.
Q3: What is the lead time and do you provide training?
A3: Standard units are usually shipped within 7-15 working days. Custom configurations may require 20-30 days. iRoad provides on-site installation, commissioning and operator training for major equipment; remote video guidance is available for standard laboratory instruments.
