- Product Details
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Quick Details
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Model Number:
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OPD790
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Product Name:
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dissolved oxygen sensor
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Signal Type:
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RS485 Modbus
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Measuring Range:
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0~20mg/L
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Working Pressure:
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0~3bar
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Working Temperature:
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0~50℃
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Temperature Compensation:
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Automatic
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Shaft Material:
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PPS
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Dimension:
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Diameter 35mm/Length 250mm
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Certification:
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ISO9001
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Power Supply:
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6~12VDC
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Type:
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DO Sensor
Quick Details
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Warranty:
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1 year
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Place of Origin:
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Jiangsu, China
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Brand Name:
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Daruifuno
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Model Number:
-
OPD790
-
Product Name:
-
dissolved oxygen sensor
-
Signal Type:
-
RS485 Modbus
-
Measuring Range:
-
0~20mg/L
-
Working Pressure:
-
0~3bar
-
Working Temperature:
-
0~50℃
-
Temperature Compensation:
-
Automatic
-
Shaft Material:
-
PPS
-
Dimension:
-
Diameter 35mm/Length 250mm
-
Certification:
-
ISO9001
-
Power Supply:
-
6~12VDC
-
Type:
-
DO Sensor
Features
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Adopt optical measurement technology based on Fluorescence principle
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The sensor does not require consumables or maintenance during use, can greatly reduce the cost of use
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Low sensor drift and longer calibration interval
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Without consuming oxygen, accurate measurement can be achievedwhen oxygen concentrationis low
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All-in-one package, the dissolved oxygen sensor can be used with the online transmitters, DTU, and portable instruments
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RS485 interface, Modbus RTU,support access to standard industrial control system
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The protection grade is IP68, can work continuously and stably under water for a long time
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Internal storage of calibration data, support offline calibration, plug and play on site
Specifications
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Product Name
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Dissolved oxygen sensor
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Product Model
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OPD790
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Brand Name
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Daruifuno
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Signal Output
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RS485 Modbus
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Measuring Range
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Oxygen content: 0.00~20.00 mg/L
Saturation: 0~200%
Temperature: 0~50℃
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Accuracy
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oxygen content: ±0.1 mg/L saturation: ±1% temperature: ±0.5℃
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Response Time
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0-> 100 % ; T90<25s； 100 -> 0%；T90< 30s
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Temperature Compensation
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Automatic, built-in temperature unit
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Related Compensation
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salinity compensation, pressure compensation
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Calibration Method
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Zero calibration and full scale calibration
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Working Pressure
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0~3Bar
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Operating Temperature
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0~50℃
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Material
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Body: PPS Head: 316 SS
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Connection
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M16
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Power Supply
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6~12V DC
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Dimensions
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Diameter 35mm, Total length 250 mm
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Installation Dimensions
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A British 1 NPT of the head and the tail for each install thread；
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Protection Grade
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IP68
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Weight
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260g
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FAQ
1. What is the measuring principle of this dissolved oxygen sensor?
A: This dissolved oxygen sensor uses the fluorescence method, covering the detection head with a layer of fluorescent material, and the LED light source in the sensor emits blue light to the head.The fluorescent substance on the surface emits red light when the fluorescent substance is excited. The higher the dissolved oxygen concentration, the shorter the time from emitting blue light to red light. Use red light release timeThe phototropism between the concentration of dissolved oxygen and the concentration of dissolved oxygen, the sensor calculates the concentration of dissolved oxygen in the medium.
2. What is the advantage of digital dissolved oxygen sensor?
A:
The digital DO sensor is conducive to long-distance signal transmission without serious signal attenuation. The sensor has RS485 interface, standard Modbus RTU communication protocol.
3. Can the DO sensor work under water？
A: Certainly. The protection grade of the dissolved oxygen sensor is IP68, it can work under water for a long time.
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