RINKO AAQ Water quality profiler with fast optical DO sensor

The AAQ-RINKO has a fast optical DO sensor (response time of 0.4 s), which allows for nonstop vertical profiling at 0.5 m s-1, shortening the required observation time while measuring a more detailed vertical distribution of dissolved oxygen when compared with the previous model. The AAQ-RINKO can measure 8 parameters (depth, temperature, conductivity, salinity, turbidity, chlorophyll, DO and pH). Light quantum and ORP sensors are available upon request. The instrument can be handled by 3 different processing units.

相關paper

1. Makarov M. M., Kucher K. M., Naumova E. Yu. (2019) Vertical distribution of zooplankton after rapid change in temperature and chlorophyll concentration. Limnology and Freshwater Biology, 1, 177 – 180. DOI: 10.31951/2658-3518-2019-A-1-177

Parameter	Range	Accuracy	Response Time
Temperature	-3~45℃	±0.01℃	0.2s
Dissolved Oxygen	Air saturation: 0~200%	±2% FS	0.4s(1)
Depth	0~100m	±0.3% FS	0.2s
Conductivity	0.5~70 mS cm-1	±0.01 mS cm-1	0.2s
Salinity	2~42	-	0.2s
Turbidity	0~1000 FTU	±2% MV or ±0.3 FTU	0.2s
Chlorophyll	0~400 ppb	±1% FS	0.2s
PAR	0~5000 μmol m-2 s-1	±4% FS	0.2s
pH	0~14	±0.2pH	10s
ORP	0~±1000 mV	-	10s

⁽¹⁾63% response time(25℃ at 1atm in air)