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Wastewater analysis sensor cartridge

A sensor box and sensor technology, applied in the analysis of materials, material analysis through electromagnetic means, instruments, etc., can solve the problems of high cost, error-prone, and sealing difficulties

Active Publication Date: 2011-02-09
HACH LANGE HACH LANGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Assembly is complex and error-prone
It is also difficult and expensive to achieve fluid-tight sealing between components made of dissimilar materials

Method used

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  • Wastewater analysis sensor cartridge
  • Wastewater analysis sensor cartridge
  • Wastewater analysis sensor cartridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Figures 1 to 5 A sensor cartridge 10 for wastewater analysis is shown detachably coupled to a ground mounted fixture 12 . The fixture 12 together with the sensor box 10 is completely submerged in the wastewater basin 14 of the wastewater treatment plant.

[0031] The sensor cartridge 10 includes a unitary fluid impermeable plastic housing 20 consisting of a housing cup 22 integral with, in turn, a bottom wall 24 , side walls 26 and a cover wall 28 bonded or welded to the housing cup 22 . The housing cup 22 is generally cylindrical. The bottom wall 24 and the side walls 26 form the outer walls of the housing 20 .

[0032] Arranged in the bottom wall 24 of the cup 22 are two electro-chemical sensor elements 30 and 32 , a current key element 34 and a temperature sensor 36 . The rod-shaped reference element 56 protrudes vertically into the housing 20 or cup 22 from above.

[0033] The first electrochemical sensing element 30 functions to measure ammonia electrochemica...

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PUM

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Abstract

The wastewater analysis sensor cartridge (10) according to the invention is intended to be used only once. It has a liquid-tight housing (20), which contains at least one electrochemical sensor element(30, 32) and at least one reference element (56). Furthermore, the housing (20) contains a sensor element electrolyte tank (40, 42) and a reference element electrolyte tank (44). The ion-sensitive membranes (31, 33) of the sensor elements (30, 32) and the housing (20) consist of plastic.

Description

technical field [0001] The invention relates to a single-use sensor cartridge for waste water analysis, which has a sensing element with ion-selective membranes. Background technique [0002] Waste water analysis sensors used in waste water purification equipment and the like tend to break down as long as the measurement environment, that is, the waste water measurement environment is bad. In addition, each electrochemical sensing element or reference element needs to be supplied with an electrolyte in an electrolyte tank. If the sensing element or reference element fails or if the electrolyte tank is empty, the corresponding sensor or reference element must be replaced or electrolyte must be filled into the corresponding electrolyte tank. In the event of a failure, it is often not easy to determine which sensing element or reference element needs to be replaced. Replacing individual sensing elements or filling the electrolyte tank is tedious, time consuming and expensive....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/403
CPCG01N27/283G01N33/1886G01N27/333
Inventor 罗尔夫·尤思曼安德烈亚斯·戈利茨约翰·R·伍德沃德
Owner HACH LANGE HACH LANGE
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