Ocean and River Instruments

Logger version optical fast DO sensor RINKO I / I D

■Description
Rinko I is an autonomously deployable data logger with a fast response optical DO sensor. The instrument and the software with various operating mode offer flexible observations in the field. The small-sized and the self-contained unit with batteries and a data logger can be easily integrated on platforms (e.g. CTDs). Rinko ID has a depth sensor, allowing for DO vertical distribution measurements.

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Sensor Specifications

  RINKO I RINKO I D
Model name ARO-USB ARO1-USB (0 to 100m)
Parameter DO Temperature DO Temperature Depth
Principle Phosphorescence Thermistor Phosphorescence Thermistor Semiconductor
Range 0 to 200% -3 to 45℃ 0 to 200% -3 to 45℃ *0 to 50m (ARO 05)
0 to 100m (ARO 1)
0 to 200m (ARO 2)
0 to 500m (ARO 5)
Resolution 0.01 to 0.04% 0.001℃ 0.01 to 0.04% 0.001℃ 1/50,000 of range
Accuracy Non-linearity ±2%FS ±0.02℃
(0 to 35℃)
Non-linearity ±2%FS ±0.02℃
(0 to 35℃)
±0.3%FS
Memory medium miniSD card ( *waterproof & high speed type)
Data capacity 1GB provided as standard
AD converter 16 bit digital conversion
Measuring mode Continuous mode, Burst mode
Measuring interval 0.1 to 600 s
Burst sampling interval 1 to 1,440 min
No. of samples 1 to 18,000
Battery CR-V3 lithium battery / 3.3 Ah
Two maximum Four maximum
Communication USB 2.0 (Ver.1.1 compatible)
Current consumption 125mV 130mA
Housing material Ti-6Al-4V Titanium (grade 2)
Dimensions Φ54mm×235.5mm Φ70mm×232mm
Weight Approx. 0.9 kg in air, 0.6 kg in water Approx. 1.2 kg in air, 0.6 kg in water
Depth rating 7,000m depth equivalent 1,000m depth equivalent within maximum range of pressure sensor

* Select a depth rating. According to the depth rating, the model is changed.

Drawing

ARO-USB

ARO-USB

ARO1-USB

ARO1-USB

*All the specifications are subject to change without notice. Please contact us for more information.

Ocean and River Instruments

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  • Service and Support Phone:+81-798-66-1783 Fax:+81-798-66-1654
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