721 photometric characteristics:
- The performance and function of the traditional 721 type instrument all reserved.
- Wide wavelength range 360nm ~ 1000nm, widely used.
- The built-in microcontroller, instrument of high degree of automation, with automatic 0%T, automatic 100%T function and error free T-A conversion, compared with the original 721 type operation is convenient.
- 4 0.8 inch high brightness LED digital display, reading resolution than the traditional 721 type of instrument is increased by 10 times.
- With four measurement modes: transmission ratio (T), absorbance (A), (C) and direct shading coefficient (F), fully meet the test requirements.
- Advanced optics design, using C-T type monochromator quality light splitting device for grating, precision instruments, optical resolution, stray light are quite optimization.
- Use special precision presetting lamp and a lamp holder, the user does not need to adjust light path again can replace the installed in the changing light, simple and convenient.
- The sample chamber adopts special engineering plastics solvent and strong acid and alkali, corrosion resistance and a removable disk and effusion flushing liquid storage container at the bottom to meet some users.
- Four can use 10-50mm cuvette.
- Flame retardant insulation plastic shell, small size, light weight, beautiful appearance.
721 the main technical indexes of photometer:
- Optical system: C-T type monochromator (diffraction grating)
- Wavelength range; Three hundred and sixty NM ~ Ten 00nm
- The maximum permissible error of wavelength. Three NM
- Wavelength repeatability: less than or equal to One .5 NM
- The maximum permissible error than the transmission. One . Zero % ( T () Zero ~ 100%tT )
- The proportion of complex transmission: less than or equal to Zero Three % ( Zero ~ 100%tT () T )
- Photometric range: T:0.0 ~ 199.9% (T) A:-0.300 ~ 2.999 (A) C:0 ~ Nine 999 (C) (F:1-9999 F )
- The spectral bandwidth: Six NM
- The stray light is less than or equal to: One . Zero % ( T ) (in Three Six 0nm Where to NaNO Two Determination)
- Stability: the dark current drift is less than or equal to: Zero Three (% T /3min) Light: less than or equal to the current drift One . Zero (% T /3min)
- Mode of operation: manual wavelength
The other 721 photometer :
- Supply voltage: AC90 ~ 250V 50/60 H Z