Description Of Function; Measuring Principle; Construction - Mettler Toledo InPro 86 0i-Serie Bedienungsanleitung

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InPro 86X0 i
30 421 372 C
3.5

Description of function

3.5.1 Measuring principle

The InPro 86X0 i series of sensors are used for the determination of undissolved particles or sub-
stances in solutions. They are designed for measuring low to medium levels of turbidity and col-
oration.
The InPro 86X0 i sensors operate on the scattered-light principle in order to determine turbidity.
Undissolved particles or substances located in the beam path of the sensor scatter the impinging
light. Detectors arranged at an angle of 25° (single-angle version) or 25° and 90° (dual-angle
version) measure the scattered light. The ratio of scattered light to transmitted light is output as a
turbidity value. The turbidity value calculated in this manner is proportional to the concentration of
undissolved particles or substances.
Additionally, the InPro 8630 i has a color measurement function (with or without turbidity com-
pensation). Absorption of blue light is measured for the color measurement. The graduation of
yellow is determined according to the Mitteleuropäische Brautechnische Analysenkommission
(MEBAK) directives. This allows to measure turbidity and graduation of yellow with one instru-
ment.

3.5.2 Construction

The sensor consists of a sensor head and a sensor body. The sensor head, which is in contact
with the medium, is attached to the pipe using a Tuchenhagen Varivent process adapter.
The instrument electronics are contained in the sensor body.
Assembly of the InPro 86X0 i sensor.
1 Sensor head
2 Sensor body
3 5-pin connector
4 Cover
© 12 / 2018 Mettler-Toledo GmbH, CH-8902 Urdorf
InPro 86X0 i