Ocean current meter

Purpose:

HY.SLC9-2The Type I direct reading ocean current meter is a new type of flow measurement instrument that is lightweight, reliable, inexpensive, and has low energy consumption. It mainly consists of an underwater host, an underwater data terminal, and other components. It uses a three core lightweight cable to transmit signals and can bear the weight of underwater detectors. This instrument can be used on any type of vessel or platform.

The instrument can be used to measure the velocity and direction of water flow at different depths in oceans, harbors, rivers, lakes, reservoirs and estuaries, and is especially suitable for use in ultra shallow waters. At the same time, it can also use a float to float the detector away from the hull to measure the velocity and direction of surface currents.

OneFeatures:

1.Compact in size and easy to carry

The instrument has a sturdy structure and a beautiful and elegant appearance; Compact in size and easy to carry.

2.Good dynamic characteristics

The instrument design principle is novel, using new shaping techniques, with minimal wave influence and good dynamic characteristics.

3.Double sealed system

The sealing parts of the underwater detector adopt a double sealing system, which has good water tightness performance.

4.Modular design

This instrument can operate satisfactorily in digital direct reading mode without any external devices. After completing the measurement, there will be an audio prompt and the flow rate will be displayed alternately and repeatedly/flow direction8Next time.

5.Low power measurement system

This instrument uses a low-power microcontroller to process measurement data. The whole machine operates with low power consumption, and the first battery can work continuously300h.

IIMain technical indicators and performance:

1.Current Speed:

Measuring range:3-350cm/s

Accuracy:≤±1.5%

Resolution:1cm/s

2.flow to:

Measuring range:0-360℃

accurate indeed Degree:≤±4℃

part distinguish Rate:2℃

3.Cable length:50-100m, tensile strength100kg

4.Measurement cycle:3、15The30min

5.Quick test mode:30s

6.Power supply: DC6V（4×1.5V）

7.Instrument operating environment temperature:-10+45℃

8.Storage temperature:-15+55℃

9.Size and weight:

project name	Size （mm）	weight （kg）
Underwater host	590×168×174	10
data terminal	230×120×42	1
cable bracket	390×180×10	6

IIIInstrument structure:

The water-based host of the instrument is a data terminal based on a low-power unit microcomputer. The flow direction adopts a compass potentiometer sensor. The fuselage and tail wing follow the direction of the water flow, while the compass follows the direction of the geomagnetic field, and its potentiometer output is proportional to the direction of the magnetic field. This signal is transmitted throughV-FThe converter is converted into a frequency modulation signal, which is sent to the host through a cable. Through counting and linear processing, the measured value of the flow direction is obtained. The flow velocity is sensed by the propeller, and its rotational speed is proportional to the flow velocity, with a proportionality coefficient of approximately2.5turn/Rice. The magnetic coupling of the rotational speed causes the reed tube inside the flow rate sensor to switch on and off, resulting in a flow rate pulse that is sent to the host through a cable. By counting and linear processing, the measured flow velocity is obtained.

The buzzer in the host is used to prompt the user to read. During the testing process, the symbol on the left end of the LCD displayPeriodic appearance and disappearance indicate that the data terminal is working normally. The LCD display has the following characteristics when displaying different parameters, with a symbol after the numerical value when displaying the flow rate“C”There is no prefix before the numerical value0When displaying the flow direction, there is a symbol after the numerical value“d”The value has a prefix0.

4Open the box:

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Five Operating procedure:

1.Quick test mode:

The power switch is located on the right side of the data terminal. After the instrument is powered on, the LCD display first shows030dabout2sAs a prompt to enter the quick mode. Press it nowsettingThe instrument enters the fast mode. If not operated in a timely manner, just press againresetYou can get the above prompt again. The LCD display shows the flow velocity value once.

2.Normal mode:

Measurement cycle setting:

After the power is turned on, the LCD displays first030dRecirculation display3cThe15c.The30cThis is the measurement cycle for you to choose from. When the displayed value meets your requirements, press oncesetting, an inquiry display appears1111Please wait2sThe instrument enters the normal measurement cycle. Then, the monitor displays a blank once, indicating that this setting has been completed.

Normal operation:

The instrument flow rate is the average value measured during the basic working cycle. The flow direction is the instantaneous value measured at the end of the basic working cycle. The measurement is completed, and the buzzer prompts the user to record the reading. The LCD display alternately displays the flow direction value and flow velocity value, repeating8Next time. The symbol ":" flashes periodically, indicating that flow velocity and direction measurement is being carried out.

VINotes:

Handle the instrument with care and avoid collision. During use, pay attention to protecting the cable from friction and squeezing.

After using the instrument, clean the underwater host with fresh water. Remove the battery from the data terminal

The water host should be kept away from moisture or water droplets during use.

Be careful when inserting and disconnecting cable plugs to avoid damage.

Display on the top left corner of the LCD screen“”The battery needs to be replaced for undervoltage indication.

The number of the underwater host should be consistent with the number of the underwater detector and used in conjunction with it; Otherwise, it will increase the error.

If you encounter a malfunction, please contact the manufacturer by phone or send the instrument back to our factory for repair.

After-sales service

This product comes with a one-year warranty (based on the invoice purchase date).

Any of the following situations will not be covered by warranty and will require paid repairs.

（1）Damage caused by improper use by the user;

（2）The user disassembles and damages it themselves;

（3）No copies of invoices and warranty certificates;

（4）The warranty certificate number does not match the product number;

（5）The warranty period has expired.