METHOD FOR CLEANING SURFACE OF DETECTION UNIT OF LIGHT RECEIVER/EMITTER INSTALLED ON WATER PASSING-TYPE TURBIDIMETER WITH SCATTERED LIGHT METHOD

摘要

PROBLEM TO BE SOLVED: To provide cleaning method that efficiently cleans a detection unit while continuously measuring the turbidness of processed water of industrial waste water by using a water passing-type turbidimeter with a scattered light method and can prevent deterioration in measurement accuracy.;SOLUTION: A cleaning method is for cleaning the surface of a detection unit 17 containing a light receiver and a light emitter installed inside the detection unit of a turbidimeter with a scattered light method when measuring the turbidness of processed water of industrial waste water by using the passing water-type turbidimeter with a scattered light method. The cleaning method emits cleaning water to the surface of the detection unit with an inclination angle 60-80° to the normal of the surface of the detection unit.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT