ZY-686A comprehensive film viewer is a new model combine LED film viewer and densitometer. The densitometer module adopt single chip microcomputer digital micro processing technology for avoid complicated density calibration；LED film viewer module adopt high power lED source to ensure the light uniformity and stable color temperature，meet the requirement of checking the high density film .

Adopt stable light source and high precision sensor, analog digital conversion by single chip microcomputer to achieve accurate reading and convenient operation. Density slice accompany used for checking the equipment accuracy degree. The equipment widely used for NDT testing and medial assessment , suitable for analyze film of pressure vessel,shipping,Chemical engineering fields. Portable design makes its extremely suitable for the occasion of liquidity in the field work.

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