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Advanced HACH LDO® Process Dissolved Oxygen Probe
Hach Company
The HACH LDO sensor is coated with a luminescent
material. Blue light from an LED is transmitted to the sensor
surface. The blue light excites the luminescent material.
As the material relaxes it emits red light. The time for the
red light to be emitted is measured. Between the flashes of
blue light, a red LED is flashed on the sensor and used as
an internal reference
Click Here To Download:
•Datasheet: HACH LDO® Process Dissolved Oxygen Probe
•Datasheet: HACH LDO® Process Dissolved Oxygen Probe
•Datasheet: HACH LDO® Process Dissolved Oxygen Probe
The HACH LDO sensor is coated with a luminescent material. Blue light from an LED is transmitted to the sensor surface. The blue light excites the luminescent material. As the material relaxes it emits red light. The time for the red light to be emitted is measured. Between the flashes of blue light, a red LED is flashed on the sensor and used as an internal reference.
Increased oxygen in the sample decreases the time it takes for the red light to be emitted. The time measurements correlate to the oxygen concentration.
Applications
- Aeration Tanks—Adequate dissolved oxygen levels in aeration basins are required for microorganisms to remain viable. The HACH LDO probe can be used with a variable frequency drive or PLC control system to control the amount of oxygen being injected into the tank.
- Nitrification & Denitrification Tanks
- Anaerobic Digesters
- Aerobic Digesters
- NPDES Permit Monitoring—Up and downstream from plant effluent and plant outfall.
Click Here To Download:
•Datasheet: HACH LDO® Process Dissolved Oxygen Probe
