Lab Visible Spectrophotometer, Digital 721N Lab Spectrophotometers LCD Display 350-1020nm Tungsten Lamp Lab Equipment with 4 LCD Display

Product specifications:

Optical system: achromatic Czerny-Turner (1200L / mm grating)

Wavelength range: 350-1020 nm

Wavelength accuracy: ±2nm

Spectral bandwidth: 6nm

Wavelength repeatability: ≤1nm

Stray light: ≤0.1%T @ 360nm

Photometric accuracy: 0.5% T

Photometric repeatability: 0.2% T

Drift: ≤0.2%T

Noise: ≤0.3%T

Stability: ±0.004A / h@500nm

Working mode: T, A, C

Zero mode: automatic

Wavelength drive mode: manual wavelength

Print interface: optional RS232 (not included)

Energy (light source): tungsten lamp

Weight: 10 kg

The package includes:

1 x visible spectrophotometer

1 x power cord

1 x glass cuvette

1 x instruction

 Precautions:

1. The instrument should be placed in a dry room. When used, it should be placed on a firm and stable workbench. The indoor lighting should not be too strong. In the hot weather, you can not use the fan to blow directly to the instrument to prevent the bulb filament from becoming bright and unstable.

2. Before using the instrument, the user should first understand the structure and working principle of the instrument, as well as the functions of each control knob. Before the power is turned on, the safety performance of the instrument should be checked. The power supply wiring should be firm and the power supply should be good. The starting position of each adjustment knob should be correct, and then press the power switch.

3. When the instrument has not been powered on, the meter pointer must be on the “O” engraving line. If this is not the case, you can adjust it with the calibration screw on the meter.