This instrument is a standard instrument which based on the principle of spectrophotometry.It can be measured the transmittance,absorbency,concentration factor and concentration direct reading of samples within 340-1000nm wavelength ranges.Meanwhile,it can be easily apply to cilinical sanitation ,biochemistry,environment protection,food inspection,petrochemical,tertiaryinstitutions,basic teaching and experiments,etc.
Characteristics:
Adopt of new single-chip microcomputer system,completely functions.
4 digital LCD display,widely measurement range,higher accuracy.
Thin-film-style keyboard,dust-proof,waterproof ,and easy to clean.
To be avoid energy plummeting after reflector was burnt,it has adopt lens to gathering light.
With a professional lamp holder to ensure that replaced the halogen tungsten lamp without changing the optical circuit.
Automatic calibration0%(T),100%(T),and absorbency.0(A).
Specifications:
Model:721 without RS232 interface               722 with RS232 interface
Optical system:Single beam,1200 diffraction grating
wavelength range:340-1000nm
Wavelength accuracy:+/-1nm
wavelength repeatability:0.5nm
spectrum bandwith:4nm
photometric range:0-100%(T),0-3.000(A)
Transmittance Accuracy:+/-0.5%(T)
Transmittance repeatability:0.2%(T)
Reading range:0-9999
Stray light:<=0.2%(T)(360nm,JB400)
Light source:Halogen tungsten lamp(20W/12V)
Power supply:AC90-264V