1. Product introduction
The 721\722\722N\722S visible spectrophotometer is an economical analytical instrument with optional RS232 interface output. The excellent photometric accuracy is higher than that of the general instruments of the same grade. Widely used in medical testing, food, petrochemical industry, environmental protection and monitoring and many other fields.
2. Product parameters
model | 721 | 722 | 722N/S |
Optical System Achromatic Czerny-Turner (1200L/mmgrating) | |||
wavelength range | 350-1020nm | 320-1020nm | 320-1020nm |
wavelength accuracy | ±2nm | ±2nm | ±2nm |
Spectral bandwidth | 6nm | 5nm | 4nm |
wavelength repeatability | ≤1nm | ≤1nm | ≤1nm |
Stray light | ≤0.1%T@360nm | ≤0.05%T@360nm | ≤0.05%T@360nm |
Photometric accuracy | 0.5%T | 0.3%T | 0.3%T |
Photometric repeatability | 0.2%T | 0.2%T | 0.2%T |
drift | ≤0.2%T | ≤0.1%T | ≤0.1%T |
noise | ≤0.3%T | ≤0.2%T | ≤0.2%T |
stability | ±0.004A/h@500nm | ±0.004A/h@500nm | ±0.003A/h@500nm |
Way of working | T, A, C | T, A, C | T, A, C |
Zero adjustment method | automatic | automatic | automatic |
Wavelength driving method | Manual wavelength | Manual wavelength | Manual wavelength |
print interface | Optional | Optional | Optional |
Energy (light source) | Imported tungsten lamp | Imported tungsten lamp | Imported tungsten lamp |
net weight | 8kg | 8kg | 8kg |
software support | no | no | no |
3. Product Features
1. Digital display of measured value
2. Automatic light gate , automatic zero adjustment and instrument calibration
3. The original imported tungsten lamp is used to ensure the service life of the instrument
4. The large sample chamber can hold a 250px cuvette at most
5. Optional output port RS232 , which can realize the function of connecting to the printer and connecting to the computer
