A4/A4L Portable Spectrophotometer


● Large LCD screen (482X272 Dots) with saving standard curve function

● Imported & Environmental Tungsten lamp, preventing from Ozone inhalation

● Adopted high-class grating with wholly hermetic light path design, to ensure the instrument has the super low stray light

● Pre-aligned design ensures the user can change lamps conveniently

● Wavelength calibration, wavelength setting, change lamp source and dark current calibration automatically

● With Si02 coating optical mirror, reducing the pollution from outside fully

● Widely used for Organic chemistry, Inorganic chemistry, Life sciences, foods, Medicine and health, Agriculture, Geology, Metallurgy and Environment etc. fields

Basic Fuctions:

1. Photometry

Test Abs., Transmittance by fixed wavelength

2. Quantitative

a. C Mode: EstablishC=K*A curve, test sample concentration

Photometry Mode

Portable Spectrophotometer

Con. Test C=K*A

Portable Spectrophotometer


Model A4 A4L
Optical System Proportional Double Beam
Wavelength Range 340-1000nm 320-1020nm
Spectral Bandwidth 6nm 6nm
Wavelength Accuracy ± 1.8nm
Wavelength Repeatability ≤ 0.5nm 
Photometric Accuracy ± 0.002A (0-0.5Abs), ± 0.004A (0.5-1.0Abs), ± 0.5% T (0-100% T)
Photometric Repeatability 0.001Abs (0-0.5Abs), 0.002Abs (0.5-1.0Abs), ≤ 0.2% T (0-100% T)
Stray Light ≤ 0.2 % T @ 360nm; 220nm(0.2) ≤ 0.2% T @ 360nm (0.2)
Stability ± 0.002A / h @ 500nm
Noise ± 0.001A
Display 482X272 Dots LCD
Photometric Mode T, A, C, E
Photometric Range 0-400%T,-0.601-4.0A
Detector Silicon Photodiode(X2)
Light Source Tungsten Lamp
Output RS232
Compartment Solid Sample Holder, Micro Cell Holder, 10-50mm Cell Holder
Power DC12V/3A
Portable Spectrophotometer