Hongxin portable fluorescence dissolved oxygen sensor adopts internationally leading fluorescence lifetime technology. RS485 output, supports MODBUS, maintenance free, can quickly and accurately measure dissolved oxygen content, built-in temperature sensor, with automatic water temperature compensation function. Capable of providing stable, highly reproducible, and sensitive dissolved oxygen analysis results.
Measurement principle
The fluorescence method dissolved oxygen analyzer is based on the quenching principle of specific substances on active fluorescence in physics. From a light-emitting diode（LED）The emitted blue light shines on the fluorescent substance on the inner surface of the fluorescent cap, and the fluorescent substance on the inner surface is excited, emitting red light. By detecting the phase difference between the red and blue light and comparing it with the internal calibration value, the concentration of oxygen molecules is calculated, and the final value is automatically compensated by temperature and pressure.
Sensor characteristics
Digital sensor, RS485 output, supports MODBUS
No film, no electrolyte required, no interference, no need for frequent calibration
No oxygen consumption, no flow rate limitation
Built in temperature sensor, automatic temperature compensation
TECHNICAL INDEX
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name
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parameter
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Range of measurement
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0~20mg/Lperhaps0~200%saturation
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accuracy
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1%
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response time
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10 sec
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sensor drift
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<1% per year
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temperature range
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0 ~ 50℃
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Temperature Accuracy
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±0.2℃
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protection grade
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IP68
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Maximum operating pressure
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6bar
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sensor interface
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supportRS-485，MODBUSagreement
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power information
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DC 6~12V, current<50mA
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Sensor Size
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Φ16*180 mm
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Probe cable length
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5mAdditionally, customers have the option to choose10m、15mand30mcable
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calibration
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One or two point calibration
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Fluorescent cap lifespan
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Guaranteed use for one year (under normal use)
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sensor material
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POMOr stainless steel
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ordering information
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model
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describe
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H500-B
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Portable Fluorescence Dissolved Oxygen Sensor
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H602-A
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Multi functional water quality analysis instrument. Header, can be connected to digital electrodes,PHTemperature probe
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H602-B
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Multi functional water quality analysis instrument. Header, supports Bluetooth, can be connected to digital electrodes,PHTemperature probe
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Optional Accessories
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model
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describe
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H9001
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Dissolved oxygen fluorescent cap. Under normal use, it is recommended to replace the fluorescent cap once a year
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