Hydro wipers are used to prevent marine organisms (algae, microalgae, bacteria, barnacles, shellfish, etc.) from adhering to underwater optical instruments. They use a rotating brush head to automatically rotate and wipe the surface of underwater optical instruments at set time intervals, which is simple, effective, and reliable in performance. Equipped with a built-in battery and control chip, or powered by the instrument and controlling the wiping interval, it can work continuously for 4 months, withstand voltage of 30 meters or 100 meters, and maintain the data stability of underwater optical instruments deployed in the ocean for a long time. Currently, optical instruments that have been successfully applied include nitrate, turbidity, chlorophyll, etc PAR、 Irradiance, radiance, transmittance, etc.

Instrument characteristics:

1. Specially designed for each sensor

2. Any water body: seawater and freshwater

3. Easy installation, self-contained independent operation, no need for system integration

4. Intelligent work (built-in microprocessor)

5. High precision built-in clock, precise wiping interval time, without affecting the operation of the instrument itself

6. Sturdy design with good stability

7. The wiping interval setting is determined by the customer

8. Good durability, convenient for long-term deployment

9. The sliding device of the transmission shaft prevents damage to the gearbox

10. 30m standard operating depth, maximum 100 meters

Technical Indicators:

1. Wiping interval: 15, 30, 45, 60, 120, 180, 240, 300, 360 or 720 minutes

2. Accuracy of wiping interval:+/-1 minute per year (0-40C)

3. Power supply: 6 x AA alkaline batteries

4. Power consumption: 0.04mA in sleep mode, 80mA in working mode

5. Laying time: 2 hours wiping time interval exceeding 4 months laying time

6. Materials: Stainless steel, Acetal

7. Depth range: 30m or 100m

8. Cable: Use EPDM coated cable (1 meter standard length) between the wiping brush and the battery

9. Cable entry device: Pull resistant cables are inserted in a sealed manner at the back using an 'O' ring.

The following are legends and actual cases: