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RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

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Brand Name :Daruifuno
Model Number :OPD70
Certification :CE
Place of Origin :China
MOQ :Negotiable
Price :Negotiable
Product Name :Luminescent Dissolved Oxygen Probe
Product Model :OPD70
Measure Principle :Optical measure by luminescence
Resolution :0.01
Accuracy :0.1mg/L 1%
Response Time :90% of the value in less than 60 seconds
Temperature Compensation :Automatic
Material :PPS
Protection Grade :IP68
Dimensions :Diameter: 25 mm, length: 150 mm
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RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

The DRFN’s luminescent Dissolved Oxygen probe can be widely used in urban sewage treatment, industrial wastewater treatment, surface water monitoring, sea water monitoring, fish farming, aquarium, drinking water, etc. Dissolved Oxygen monitoring throughout wastewater treatment, and particularly in the activated sludge phase, is key to effective and efficient treatment.

Measuring Principle Of The Luminescent Dissolved Oxygen Probe

The luminescent Dissolved Oxygen probe covers the detection head(luminescent membrane cap) with a layer of luminescent material. The LED light source in the sensor emits blue light to the fluorescent material on the surface of the head (luminescent Membrane cap). The luminescent material is excited and emits red light. The higher the dissolved oxygen concentration, the shorter the time from emitting blue light to red light. Using the correlation between red light release time and dissolved oxygen concentration (release time), the dissolved oxygen analyzer calculates the dissolved oxygen concentration in the medium.

RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

Advantages of The Luminescent Dissolved Oxygen Probe

  • The DRFN OPD70 LDO probe can meet various works without calibration.

  • The sensor is equipped with digital communication Modbus RS485 protocol.

  • Compact and light, the LDO probe can be conveniently connected to online transmitters, DTUs, and portable instruments.

  • The protection grade of the LDO sensor is IP68, it can work continuously and stably under water for a long time.
  • No need to consume oxygen, especially at very low oxygen concentration for accurate measurement.

Technical Parameter

Product Name

Luminescent Dissolved Oxygen Probe

Product Model

OPD70

Measure Principle

Optical measure by luminescence

Measure Range

0.00 to 20.00 mg/L

0-200%

Resolution

0.01

Accuracy

0.1mg/L

1%

Response Time

90% of the value in less than 60 seconds

Temperature Compensation

Built-in temperature unit, automatic temperature compensation

Calibration Method

Zero position/slope/deviation

Operating Temperature

0°C ~ 50°C

Signal Interface

Modbus RS485

Dimensions

Diameter: 25 mm; Length: 150 mm

Working Pressure

0~3 bars

Material

PPS

Weight

450g

Protection Grade

IP68

RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

The Matching Dissolved Oxygen Controllers Recommendation

Product Name Dissolved oxygen controller
Product Model DUC2-DO-S DUC2-DO-H
OTA default wifi No
Software Version DRFN DO Analysis software V1.0
DO Concentration Display Range 0-50mg/L
DO Saturation Display Range 0-400%
TEMP Display Range -10~500℃ /14~932℉
Atmospheric Pressure Display Range 30-120kpa
Salinity Compensation Range Input range0.0001-99999ppt
Relay Control 2 settable SPST relays max. load 3A/250VAC
Analog Current Output 2 settable 0/4~20mA active current loop output max. load 1000Ω
Communication Method MODBUS RTU; support JSON text data format
Display Screen 128*64 LCD
Time History/Data Record Year/month/day/hour/min/second, record 14000 historical data
Protection Level IP66
Operating Environment 0~60℃, relative humidity less than 95%
Storage Environment -20~70℃, relative humidity less than 55%
Shell Material Enhanced ABS
Size 144*144*120mm (hole size 138*138 mm)
Mounting Method Wall mounting, pipe clamping, panel installation
Power Supply 18-36V DC or 100~240V
Weight 800g

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RS485 Luminescent Dissolved Oxygen Probe Requires No Calibration

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