| 摘要 |
<p>The present invention relates to a dissolved oxygen sensor which is convenient for maintenance, and is capable of protecting and preventing a diaphragm from deforming by being assembled and disassembled for replacement and management depending on a measured characteristics of the quality of water. More specifically, the dissolved oxygen sensor comprises: a cartridge where an electrode unit connected to a signal line installed is formed; a cartridge unit constituting a measurement unit which prevents the diaphragm from deforming by an installation force, and an external force of water flow generated upon close contact with an electrode unit when being installed in a lower part of the cartridge is variously formed to match measurement conditions depending on the type and characteristics of the quality of water to be measured; and the cartridge unit is composed to be replaced when measuring waste water and ultrapure water, sealed while being unattached due to contact with the outer surface of the measurement unit when being installed inside a sensor body, and allowed to easily replace the cartridge wherein the electrode unit is installed or the measurement unit by being sealed. The dissolved oxygen sensor can provide convenience of management and reduce the maintenance costs since the cartridge or the measurement unit individually or the entire cartridge unit can be disassembled for replacement and repairment.</p> |
