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Who has used a portable dissolved oxygen meter with fluorescence technology?
Some features of portable dissolved oxygen meters using fluorescence method: (1) No polarization required: When measuring dissolved oxygen, the LDO dissolved oxygen probe does not need a polarization time. (2) No calibration required: The probe is calibrated before leaving the factory, so no calibration is needed during use, and it can be used for measurement directly. (3) Low maintenance requirements: The LDO probe is a membrane-free probe; there is no need to replace the membrane element or refill the electrolyte, thus **reducing** maintenance needs. (4) Strong interference resistance: The LDO probe is a membrane-free probe, therefore it is not affected by chemicals present in typical wastewater. (5) Durable fluorescent cap: The fluorescent cap maintains its accuracy even when scratched or partially contaminated, and is easy to clean. (6) HQ20 dual-mode display: The HQ20 features a dual-mode display that allows for the simultaneous reading of dissolved oxygen and pH values.
The fluorescence-based dissolved oxygen meter uses an innovative fluorescence method in place of traditional membrane electrodes, eliminating the need to replace membranes and electrolytes. This reduces maintenance efforts and enhances operational reliability, making it particularly suitable for harsh working conditions in wastewater treatment applications. Furthermore, fluorescence sensors do not consume oxygen, so there is no requirement for flow rate or agitation, and they are not affected by substances such as sulfides.
Low maintenance requirements, but the price is higher, around 40,000 yuan