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- 产品名称：721 Spectrophotometer
- 产品型号：721'
- 产品展商：Shanghai instrument electricity
- 产品文档：无相关文档
简单介绍
721 spectrophotometer is one of the commonly used analytical instruments in the laboratory of factories, mines, hospitals, schools and scientific research units. It can be tested by general chemical c
产品描述
Product introduction:
721 spectrophotometer products is one of the commonly used analytical instruments, factories, mines, hospitals, schools and research units in the laboratory, general chemical energy in the visible light range of colorimetric analysis test. If the increase in 0.5A, 1A, 1.5A piece of any piece of extinction, but also for the colorimetric determination of high content.
A large number of application shows that this kind of instrument is the most reliable quality, the most widely used popular models, is listed as a variety of test procedures and the textbook standard instrument.
721 spectrophotometer products with automatic light door, localized gain adjustment circuit is particularly reliable, T, A direct reading, convenient operation.
721 spectrophotometer structure:
The instrument is composed of a light source lamp, adjustable voltage, monochromator, cuvette holder, photoelectric tube cassette (electronic amplifier), stable voltage device and power transformer etc.. The optical part is the self collimation optical path, single beam method, using tungsten lamp as light source.
721 spectrophotometer is the main technical indicators:
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- Wavelength range: 360nm ~ 800nm
- The maximum permissible error of wavelength. 3nm (360nm ~ 600nm) , . 5nm ( 600nm ~ 700nm ). 6nm ( 700nm ~ 800nm )
- The surface scales: transmission ratio range Zero ~ 100% ( T )
- Absorbance: Zero ~ Two ( A )
- Accept the face: GD-7 Photoelectric tube
- Light source lamp: 12V/25W
- Power supply voltage: AC220V . 22V 50H Z . 1H Z