Water quality profiler with fast optical DO sensor

AAQ-RINKO

AAQ170/171/172/175/176/177

For realtime profiling● Fast-response DO sensor (90%: less than 1 s in air)
● Continuous vertical data sampling at 0.5 m s-1● Corrosion prevention (titanium case)● Light weight (approx. 2.4 kg in air and 1.1 kg in water)

AAQ-RINKO

AAQ170/171/172/175/176/177■ Description

The AAQ-RINKO has a fast optical DO sensor (response time of 0.4 s), whichallows for nonstop vertical profiling at 0.5 m s-1, shortening the required
observation time while measuring a more detailed vertical distribution ofdissolved 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 uponrequest. The instrument can be handled by 3 different processing units.

■ Model and observation parameters
Depth Temperature Conductivity Fresh water EC Salinity Chlorophyll Turbidity

●
●
●
●
●
●

AAQ170
AAQ171
AAQ172
AAQ175
AAQ176
AAQ177●
●
●
●
●
●

●
●
●
●
●
●

●
●●
●
●
●

●
●
●
●
●
●

●
●
●
●
●
●

DO

●
●
●
●
●
●

■ Probe specifications

●
●
●
●
●
●

pHQuantum

●
●

●

●
●
●

●
●

ORP

●

■ Printer Unit

Communication method

RS-485

A/D conversion

16 bit digital conversion

Dimensions

Φ108 x 293 mm

WeightApprox. 2.4 kg in air, 1.1 kg in water

Housing material

Titanium (grade 2)

Cable

Please select a 50 m cable or a 100 m cable by usage.

The printer unit is designed with the objective of use
in full-scale ocean surveys. All operations are
performed using the touch panel and externalpushbuttons. The colored liquid crystal makes thescreen easy to view at nighttime as well. The printerunit is a multi-functional model, featuring functions
such as vertical graph drawing, data printing andrecording. A GPS is provided as standard, making it
possible to simultaneously record position
information as well.

■ Sensor specifications■ Hand-Held Unit

The hand-held unit has a built-in
battery and allows you to record yourobservations by simply pushing asingle button. The hand-held unit
portability allows you to display data
as well as operations. The unit is also
provide with interface module
functions as well (you can monitor
observations in real time by your PC).

■ Interface module

The interface is available in two models (thestandard type and the splash-proof type) andallows real-time data sampling/monitoring
using a PC. An additional data processing
software is also available to quickly perform
data post-processing (e.g. averaging anddespiking) as well as optional analysis ofsuspended solids or fluorescence data
conversion to chlorophyll analytical values.

Parameter

Principle

Measurement range

Resolution

Accuracy

Time constant

DepthSemiconductor pressure sensor

0 to 100 m

0.002 m±0.3% FS

0.2 s

Temperature

Thermistor-3 to 45 °C

0.001 °C

±0.01 °C (0 to 35 °C)

0.2 s

Conductivity

Electrode

0.5 to 70 mS cm-1

0.001 mS cm-1

±0.01 mS cm-1 *1

0.2 s

Salinity

Practical salinity

2 to 420.001―0.2 s

Turbidity

Backscattering

0 to 1,000 FTU (Formazin reference)

0.03 FTU±0.3 FTU or ±2%0.2 s

Chlorophyll

Fluorimeter

0 to 400 ppb (Uranin reference)

0.01 ppb±1% FS

0.2 s

DOPhosphorescence

0 to 200% (0 to 20 mg L-1)

0.001 to 0.004 mg L-1(0.01 to 0.04%)±2% FS (±0.4 mg L-1)

0.4 s *2

Quantum

Photodiode0 to 5,000 μmol m s

0.1 μmol m s

4% FS

0.2 s

pH

Glass electrode0 to 14 pH

0.01 pH±0.2 pH

10 s

ORP

Glass electrode0 to ±1,000 mV

0.1 mV―10 s-2■ Interface specifications-1-2-1*1. Calibration using sea water (range: 28 to 65 mS cm ) *2. 63% response time as standard (25 °C at 1 atm in air)-1

Model namePrinter Unit (PC-12)

Hand-Held Unit (H-11)

Splash-Proof interface (AAQ-IF)

ScreenColor 7-inch TFT liquid crystal

4 × 20-line LCD

3 LEDsOperation method

Screen touch panel, external pushbuttons

Touch buttons―

Displayed information

GPS information, measured data, vertical graphMeasured data

Voltage level

Memory type

4 GB built-in memory

512 MB CF card―

Measurement method
Memory method

1.Automatic vertical measurement by selected depth pitch(selectable values: 0.1, 0.2, 0.5, 1 m)
2.Measured data recording at any depth on-the spot

Continuous measurement at each selected interval(0.1, 0.2, 0.5, 1, 2, 5, 10 s)

Measurement at selected interval basedon the PC application software setting――

Calendar information

1.Automatic onsite printing of measured data
after automatic profiling
2.On site printing of on-the-spot measured data
Built-in (automatic correction by GPS)

Built-in―Power source

100 to 240 V AC or 12 V DC

8 AA alkaline batteries, 100 to 240 V AC, 12 V DC

8 AA alkaline batteries, 12 V DC

Dimensions

470 × 357 × 176 mm (not including protrusion )85 × 115 × 255 mm

199 × 83 × 46 mm

WeightApprox. 8.0 kg
Built-in GPS as standard,
data extractable using USB memory

Approx. 1.0 kg (no batteries included)

Approx. 0.5 kg (no batteries included)

Including interface functions―Print function

Other functions■ Drawing※ Dimensions are in mm.

※ All speciﬁcations on this leaﬂet are subject to change without notice.

16.07. 0000 Ⓜ