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Time of issue:2020-04-29 00:00:00
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LDO II AQ / AQS dissolved oxygen probe for aquaculture

Controllers and sensors

Controllers And Sensors

LDO--II-溶解氧探头

LDO II AQ / AQS dissolved oxygen probe for aquaculture

-Introducing Hach's new LDOIIAQS fluorescence method membrane-free dissolved oxygen probe is only suitable for measuring the concentration of dissolved oxygen in the marine aquaculture industry. The unique fluorescent method dissolved oxygen technology is suitable for online control of oxygen in marine aquaculture. Features of less maintenance and less interference. The existing LDOIIAQ fluorescence method membrane-free dissolved oxygen probe used in the freshwater aquaculture industry has been upgraded. -Typical applications Freshwater aquaculture industry Seawater aquaculture industry-Hach LDOIIAQS fluorescence method membrane-free dissolved oxygen probe-working principle The top of the sensor cover of the LDOIIAQ probe is covered
LDO--II-溶解氧探头
Product description
Technical indicators
-Introduction
 
Hach's new LDO II AQS fluorescent method membrane-free dissolved oxygen probe is only suitable for measuring the concentration of dissolved oxygen in the marine aquaculture industry. The unique fluorescent method dissolved oxygen technology is suitable for online control of oxygen in marine aquaculture. Features of less maintenance and less interference. The existing LDO II AQ fluorescence method membrane-free dissolved oxygen probe used in the freshwater aquaculture industry has been upgraded.
 
 
 
- typical application
 
Freshwater aquaculture industry
 
Marine aquaculture industry
 
 
 
-Hach LDO II AQS fluorescence method membrane-free dissolved oxygen probe
 
- working principle
 
The front of the sensor cover of the LDO II AQ probe is covered with a layer of fluorescent material. The blue light emitted by the LED light source illuminates the fluorescent material, and the fluorescent material is excited and emits red light; a spot cell detects the fluorescent material from emitting red light to returning The time required for the ground state. This time is only related to the emission time of blue light and the amount of oxygen. The probe has another LED light source, which emits red light at the same time as blue light emission, as a reference for blue light emission time. The more oxygen around the sensor, the shorter the time for the fluorescent substance to emit red light. Calculate the dissolved oxygen concentration accordingly.
 
 
 
- Product Features
 
No calibration required
 
Hach LDO II AQS probes are available out of the box, no calibration is required, and the lifetime of the fluorescent cap is up to two years.
 
No drift
 
Using 3D calibration technology, the probe is accurately calibrated before leaving the factory, and the measurement is more accurate than ever
 
Basically maintenance-free
 
Using Hach Fluorescence technology, there is no need to replace the membrane, no need to supplement the electrolyte solution, and there is no need to polish the anode and cathode.
 
Stronger
 
The shell is double sealed with O-ring and ultrasonic while using new materials, which reduces the size and improves the durability.
 
 
 
-Hach LDOIIAQ probe, leading a new era of fluorescence dissolved oxygen
 
- working principle
 
The sensor cover at the front end of the LDO IIAQ probe is covered with a layer of fluorescent material. The blue light emitted by the LED light source illuminates the fluorescent material, and the fluorescent material is excited and emits red light; time. This time is only related to the emission time of blue light and the amount of oxygen. The probe has another LED light source, which emits red light at the same time as blue light emission, which is used as a reference for blue light emission time. The more oxygen around the sensor, the shorter the time for the fluorescent substance to emit red light. Calculate the dissolved oxygen concentration accordingly.
 
 
 
- Product Features
 
No calibration required
 
Hach LDO IIAQ probes are available out of the box, no calibration is required, and the lifetime of the fluorescent cap is up to two years.
 
No need to change the diaphragm
 
With Hach ’s breakthrough fluorescence technology, the probe is basically maintenance-free, because there is no need to replace the membrane, no electrolyte solution, and no need to polish the anode and cathode.
 
No missing service
 
The cleaning service prompt can be customized, and the service prompt message is automatically triggered at that time, so that the probe cleaning cycle will never be missed.
 
No drift
 
The epoch-making 3D calibration technology makes the Hach LDO IIAQ probe accurately calibrated before leaving the factory, and the measurement is more accurate than ever!
 
Stronger
 
The innovative Hach LDO IIAQ housing uses new materials and double seals with O-rings and ultrasonics to improve durability. At the same time, the size is reduced, which makes it easier to operate.
 
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Technical index
project Parameter information
Measuring range (dissolved oxygen) 0 to 20 ppm (0 to 20 mg / L)
0 to 200% saturation
Measurement accuracy (dissolved oxygen) Less than 5 ppm: ± 0.1 ppm
Above 5 ppm: ± 0.2 ppm
Repeatability (dissolved oxygen) 0.1 ppm (mg/L)
Response time (dissolved oxygen) T90 <40 seconds
T95< 60 seconds
Solution, sensor (dissolved oxygen) 0.01 ppm (mg / L); 0.1% saturation.
Measuring range (temperature) 0 to 50 ° C (32 to 122 ° F)
Measurement accuracy (temperature) ± 0.2 °C (±0.36 °F)
storage temperature –20 to70 °C (–4 至158 °F)
Maximum temperature 0 to50 ºC(32 至122 °F)
Power requirements 12 VDC, 0.25 A, 3 W

 

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