754 type UV visible spectrophotometer

This product is suitable for quantitative analysis of the content of substances in the ultraviolet and visible spectral regions, and can be widely used in laboratories of factories, schools, metallurgy, agriculture, food, biochemistry, environmental protection, petrochemicals, medical and health care, and various scientific research units.
Automatic wavelength, keyboard input, faster wavelength setting and conversion. First order zero crossing and first-order linear standard curve testing can establish standard curves for up to 12 reference points. Calibration curve fitting, concentration direct reading, can save 50 curve parameters. The concentration factor setting and concentration direct reading function can save 200 test records. System clock management, dark current correction, wavelength correction, USB data interface, light switching wavelength setting.

Technical Parameter

parameter
monochromator	C-T monochromator, 1200 line holographic grating
detector	Silicon photodiode
monitor	128 × 64 large screen LCD display
light source	Tungsten halogen lamp 20W/12V, deuterium lamp, light source switching wavelength can be set
spectral bandwidth	4nm
wavelength range	190~1100nm (with a step interval of 0.1nm)
Maximum allowable wavelength error	± 1.0nm (automatic calibration upon startup)
Wavelength Repeatability	≤0.5nm
Measurement range	T：-1.0~200.0%T ，A：-0.5~3.000Abs，F：0~9999，C：0~9999
Maximum allowable error of transmittance	±0.5%T
Transmission density repeatability	≤0.2%T
stray	≤ 0.3% T (at 220 and 360nm)
Stability/Noise	Dark current<0.2% T, bright current<0.5% T
data output	USB interface, LPT parallel printing interface
power supply	220V±10% 50Hz，70W
External dimensions	456×375×220 mm
net weight	17.5kg