723N Visible spectrophotometerDetailed product description：

1、 Product Description:
The 723N visible light spectrophotometer is an intelligent product that combines single-chip microprocessor control technology to provide the instrument with various complex functions of a large advanced instrument, which can meet the qualitative and quantitative testing requirements of the vast majority of samples in conventional laboratories. Widely used in medical and health, clinical laboratory, biochemistry, petrochemicals, environmental protection, quality control and other departments. Low price, high-performance instruments are your best choice.

2、 Characteristics:
1. The instrument uses a 5 "LED graphic display and an external thermal printer as visible and output devices to clearly display test results and prompts during operation. The thermal printer can easily print test results for data reporting and storage.
2. The testing method provides photometer mode, wavelength scanning, quantitative analysis, kinetic analysis, and multi wavelength testing mode. In the quantitative testing mode, three commonly used analysis methods are provided: coefficient input, one point method, and multi-point undetermined.
3. The unique colorimetric dish pairing function can eliminate measurement errors caused by colorimetric dish pairing (only effective in photometer mode and quantitative analysis).
4. It has automatic zero/full adjustment function.
5. The measurement reading has high accuracy, good reproducibility and stability.
6. There are various advanced functions such as concentration direct reading, linear regression, top time printing, GOTO λ, and spectral scanning.

3、 Main technical indicators:

Noise	100% noise ≤ 0.3% T
monochromator	Grating 1200/mm
stray light	≤ 0.3% T (measured with NaNO2 at 360nm, actual measurement shows 0.1% T)
Spectral bandwidth	4nm
wavelength range	325nm～1000nm
Wavelength index	Four digit LED digital display
Transmittance range	0.0%～200.0%T
Wavelength accuracy	±1nm
wavelength repeatability	≤0.5nm
Wavelength readability	±0.5nm
Baseline Straightness	±0.005（A）； Drift: ≤ 0.004 (A)/h
Transmittance accuracy	± 0.5% T (tested with NBS930D)
Transmission density repeatability	≤ 0.2% T; Printing output method: thermal printer
Concentration direct reading range	0.000～9999C
Range of absorbance display	-0.301A～4.000A

4、 Other:
⑴ Optical system: single beam, 1200 line/mm diffraction grating; ⑵ Display and output: 54 "LCD graphic display, external thermal printer; ⑶ Light source: tungsten halogen lamp 12V/10W; ⑷ Receiving element: photovoltaic cell; ⑸ Power supply: AC220V ± 22V; 50HZ ± 1HZ;
⑹. Instrument dimensions: 480mmX380mmX260mm; Net weight: 15Kg