Measurement basis
Confirm whether the control system uses mg/L, percent saturation or both.
01
Fluorescence measurement for continuous monitoring
PFDO-800, PFDO-700, PFDO-600 and PFDO-500 use optical fluorescence quenching, which does not consume oxygen and does not require sample flow across the sensor. Selection depends on pressure, probe size, material, mounting and application.
02
Confirm these conditions before selection
Water and material
Specify wastewater, freshwater or seawater so the appropriate sensor material can be selected.
Mounting depth
Provide immersion arrangement, cable length, access and any cleaning requirements.
Control outputs
Confirm the number of 4–20 mA channels, relays and Modbus RS485 requirements.
03
Typical applications
Aeration tanksMunicipal wastewaterIndustrial wastewaterAquacultureSurface waterIndustrial process water
04
Four verified FUNEL models
05
Dissolved oxygen selection questions
Does the optical sensor consume oxygen?+
No. The fluorescence method does not consume oxygen and has no sample-flow requirement for the measurement principle.
Can the PFDO series integrate with aeration control?+
Yes. The documented transmitter provides three 4–20 mA outputs, configurable relays and Modbus RS485 for integration with control systems.
Contact FUNEL
견적 요청
We will respond with a recommended configuration, supporting documentation and quotation.