new typeFilm coveringOptical carbon dioxidemonitorsensor
Online dissolution of carbon dioxide in watermonitor
Dissolved carbon dioxide in water (excluding HCO3)-And CO32-）The measurement is in water quality monitoringImportant parameters.AMT GmbHA new type has been developedCoated optical carbon dioxide sensor with titanium alloy casing and other upgraded featurescharacteristic. newAMT-CO2The design depth of the sensor can reach1000Meter, with analog or digital output, reduces current consumptionIncluding automatic internal temperature compensation. Sensors can be externally connectedtoCTDProbe systemCan be connected to independent measurement systems or used as independent sensors.
Image: Film coated optical carbon dioxide sensor.
Measurement principle:
The internal volume of the sensor is separated from the test sample by a permeable silicone membrane. Liquids and solids cannot pass through thin films. If the sensor is inserted into the sample, inside the sensorBetween the sample andCO2Partial pressure balance. In sensorsinternalThere is an optical sensor installed. Its working principle is based on a single beam with dual wavelengthsNDIR (Non Divergent Infrared). To achieve partial pressure measurement of carbon dioxide, it is necessary to simultaneously measure water temperature and air pressure to calculate carbon dioxide concentration.
The main features of carbon dioxide sensors are:
-Submersible direct reading sensors for natural water, industrial water, and seawater
-When detecting carbon dioxide and total inorganic carbon,at the same timemeasurepHprice
-For silicates, phosphatesHCO3 - And CO3 2-No signal interference
-Built in parametersNumerical measurement provides excellent stability
-Internal storage calibration coefficient
-Depth reaching1000 m
-Power consumption less than0.5W
-Equipped with analog or digital output（Optional)
-Equipped with internal temperature compensation
-Compensation for humidity and other influences
-The sensor membrane head can be heated to avoid condensation
With the so-calledCompared with the m-value method for measurement, optical carbon dioxide sensors have some advantages, as it has been found in the comparison that they are effective for silicates, phosphates HCO3-And CO3 2-No signal interference.
Film coated optical carbon dioxide sensingInstrument technologyparameter：
carbon dioxide:
Measurement range:15 mg/L、50 mg/l、340 mg/land othersRange (please choose one)
Accuracy: 0~5mg/LCO2：±0.06mg/L
5~15 mg/lCO2: Measurement values±2%
15~50 mg/lCO2: Measurement values±3.5%
50~80mg/lCO2：±1.5mg/lCO2
80~340mg/lCO2：±6mg/lCO2
summary:
F size: long225 mm, diameter33 mm
F shell material: titanium
Connector:SubCon MCBH4M
F power supply: 12-30VDCuseWhen outputting numbers or voltages;
20-30VDCWhen using current output;
F power consumption:<0.5W
Preheating time:<12In seconds,<2minute,The values are completely accurate
F maximum installationDepth:1000 m/1000 dbar
Available outputs:4~20mA，0~5VDCOr digital outputRS485
Storage and measurement temperature range:0~60°C
Internal temperature compensation of F
F Compensation for humidity and other effects
