7230G Visible Spectrophotometer

Features:

1. Automatic zero adjustment, automatic full scale adjustment, automatic establishment of linear equations, automatic switching of τ, A, and C, direct reading of concentration.

2. The sample chamber can hold 98mm cuvettes, and a bracket is required.

3. With a convenient wavelength adjustment mechanism, there is no need to open the case when adjusting.

4. The lamp source adopts a fixed voltage, and the sensitivity is automatically controlled by a microcomputer in the full wavelength range.

 Technical Parameters:

Wavelength range: 330nm～900nm

Wavelength accuracy: ±1nm

Wavelength repeatability: ≤0.5nm

Spectral bandwidth: 5nm

Transmittance accuracy: ±0.8% (τ)

Repeatability of transmittance: ≤0.2% (τ)

Transmittance range: 0.0%(τ)～100.0%(τ)

Absorbance range: -0.043 (A) ~ 1.999 (A)

Concentration display range: 0.000～9999 (C)

Stability: Dark current drift: ≤0.2% (τ)/5min Bright current drift: ≤0.5% (τ)/5min

τ-A conversion error: ±0.004 (A)

Stray light: ≤0.6% (τ) (at 360nm, measured by NaNO2)

Use environment: ambient temperature: 5℃～35℃ relative humidity: ≤85%

Working power supply: 220V±22V/50Hz±1Hz

Instrument size and weight: 530mm×360mm×160mm 20㎏