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Logger version conductivity and temperature sensor with wiper INFINITY-CTW ACTW-USB

Infinity-CTW is an autonomously deployable data logger for highly accurate temperature and salinity measurements during long-term periods. The instrument has a mechanical wiper that periodically sweeps the sensing surface of the seven-electrode conductivity cell to keep the initial accuracy, avoiding bio-fouling without chemical materials and frequent maintenances. Infinity-CTW allows for accurate and stable salinity measurements for several months without cleaning maintenances. Infinity-CTW performance was evaluated and reported by Alliance for Coastal Technologies, ACT code: VS09-06).

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Sensor Specifications

Parameter Temperature Electric conductivity
Principle Thermistor 7-electrode type
Range -3 to 45℃ 0.5 to 70mS cm-1
Resolution 0.001℃ 0.001mS cm-1
Accuracy ±0.01℃ (0 to 35℃) ±0.01mS cm-1 (28 to 65mS cm-1)

Logger Specifications

Memory medium miniSD card *waterproof & high speed type
Data capacity 1GB provided as standard (miniSD card)
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 / 3.3Ah (four maximum)
Communication USB 2.0 ( ver. 1.1 compatible)
Current consumption 110mA
Housing material Titanium (grade 2)
Dimensions Φ70mm×342mm(including sensor guard)
Weight Approx. 1.5kg in air, 0.6kg in water
Depth rating 500m depth equivalent



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

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