HydroTab 300SR HTML Interceptor Set

TECHNICAL DATA
| The HUB Mounting & Connection Elements | ||
| 1 | Hydro Tab Logo | Illuminated by RGB LED Light WHITE – The HUB functions properly RED – Error on NMEA-2K Connection |
| 2 | I/O Port | Power Supply – Use FUSE 5A |
| 3 | Ethernet Port | Connection to MFD |
| 4 | NMEA-2K Port | Connection to NMEA-2K Network |

| The HUB External Dimensions | |
| Length | 188 mm |
| Width | 150 mm |
| Height | 36 mm |
DIMENSION

THE HUB
CONTROLLER INSTALLATION
- Place The HUB Drilling Pattern in the desired position, preferably a clean and easy-to-access area.
IMPORTANT: The mounting area must be perfectly vertical!! - Drill the 4 holes, according to the provided drilling pattern, with 4 mm bore.
Mount The HUB, with the 4 provided screws.- Connect the NMEA, Ethernet & power cables to The HUB. The MFD will start displaying the main screen menu automatically, right after this step. Optionally, you can use the Ethernet Protection Cover – Part No. ELE-00833 (Fig. 4A).

IMPORTANT NOTE
If The HUB must be connected to a legacy network, it is necessary to use a PoE isolator.
Marine Engineering
THE HUB – INSTALLATION ON AN EXISTING NMEA NETWORK DIAGRAM

THE HUB – DIRECT INSTALLATION DIAGRAM

THE HUB – MAIN SCREEN OVERVIEW
| The HUB Main Screen Overview | ||
| 1 | Settings Menu | Tap to browse to The HUB’s Settings Menu |
| 2 | WiFi Setup Icon | Tap to connect to a WiFi Network |
| 3 | System Operation Mode | Swipe left/right, to select the desired mode:1. Manual: Manual operation of the interceptors.2. Auto Pitch: Interceptors position adjusted, according to the current vessel speed.3. Full Auto: Auto Pitch & Roll Operation, for optimal cruising behavior. |
| 4 | Vessel Speed | Current Speed Indication, in kts |
| 5 | Offset Indicator | Offset from Set Values (see Pg. 13) |
| 6 | Active Pitch Indicator | This message appears on the main screen, only when Active Pitch is enabled(see Pg.12) |
| 7 | PORT Gauge | Interceptor Deployment Indication, in % |
| 8 | Roll | Vessel Roll Angle Indication |
| 9 | Controller | Tap the arrows (on the MFD) to control the operation of the interceptors. |
| 10 | Pitch | Vessel Pitch Angle Indication |
| 11 | STBD Gauge | Interceptor Deployment Indication, in % |

By tapping the Settings Menu Icon (Fig. 1), a pop-up window appears, with the following 3 options:
- Settings
- Pitch Profile Edit
- System Information

Marine Engineering
THE HUB – MENU SCREENS OVERVIEW – SETTINGS
Settings
Page 1/4 contains:
- Boat Specifications
- Interceptor Series
- Roll Sensitivity
Page 2/4 contains:
Boat Loading
- Reset Pitch and Roll
- Interceptor Calibration
- Air Unit Reset
- Firmware Update
- Orientation

Page 3/4 contains:
- Speed Limit
- Low Speed Retraction 1.12 Turn Rate Limit
Page 4/4 contains:
- Active Pitch
- A Active Pitch Sensitivity

THE HUB – MENU SCREENS OVERVIEW – SETTINGS
- Boat Specifications
Includes Weight, Length and Max Speed of the vessel. Drag the bar on the slider to adjust each value individually.
Interceptor Series
Select the Interceptor Series, installed on the vessel. Tap on the screen to select between SR Series, LS Series, or BT Series
- Roll Sensitivity
- Adjusts the deployment percentage of interceptors for each degree of roll inclination. The higher the sensitivity, the higher the deployment of interceptors, for every degree of roll inclination. Drag the bar on the slid-er to adjust roll sensitivity.
- NOTE 1: High Roll Sensitivity may abruptly affect the vessel’s course and stability, especially in higher speeds.
- NOTE 2: If you set the sensitivity at max value, it may cause overheating of the Air Unit, which will disable the Auto-Roll function, until the system cools down.

- Boat Loading
- Select between three available modes:
- Light: When load is below normal weight Normal: Standard vessel load
- Heavy: When the vessel is fully loaded

- Reset Pitch and Roll
Sets Pitch and Roll value to zero, according to the actual vessel position, at that time.
Reset must be done, when the boat is in calm sea, with load evenly distributed onboard, so the plane defined by waterline is parallel to the sea plane.
Useful Tips for “Reset Pitch and Roll”:
- In case the vessel is slightly unbalanced (due to uneven weight distribution), follow the procedure bellow, for more accurate stability during Full Auto Mode:
- In calm sea, go to Manual Mode, adjust your boat position in order to be aligned with the horizon and then press Reset Pitch and Roll. This procedure will make your interceptors extend in an uneven position, in order to maintain the boat’s balance during Full Auto Mode.

Interceptor Calibration
- It calibrates both interceptors’ air pressure vs. extension.
- It should be executed after the initial installation, or after service works, when any of the interceptors is disconnected from the Air Unit.
- Calibration starts automatically. A pop-up screen appears, when the process is finished.
Air Unit Reset Resets the Air Unit
Firmware Update
- Tap “Start” to initiate the Firmware
- Update process. Keep everything powered on, until the update is complete.
- NOTE: Make sure you are connected to a WiFi Network, before starting the Firmware Update. (See Pg. 11)
Orientation
- The HUB must be placed with a mounting angle, based on the vessel’s forward direction.
- The operator must enter the orientation degrees after the initial installation. Setting this value as accurately as possible is extremely crucial to The HUB’s optimal function.


Speed Limit
- Defines the maximum speed limit, after which the interceptors will retract.
- NOTE: Speed Limit is applied in ALL MODES.
Low Speed Retraction
- Enabled (Default): Retracts interceptors, when the vessel’s speed is lower than 6 knots.
- Disabled: Interceptors are retracted manually.
- ATTENTION! By disabling Low Speed Retraction, the interceptors will remain extended, and they can brake during haul out.

Turn Rate Limit
This is the turn rate (in degrees per second), after which the system will stop using the full auto function, and balance the interceptors, in order not to affect the turn radius of the vessel.

Active Pitch
- Adjusts the deployment percentage of interceptors for each degree of pitch. The higher the sensitivity, the higher the deployment of interceptors, for every degree of pitch.
- Tap the switch to enable the Active Pitch.
- Drag the bar on the slider to adjust pitch sensitivity.
- NOTE 1: High Pitch Sensitivity may abruptly affect the vessel’s course and stability, especially in higher speeds.
- NOTE 2: If you set the sensitivity at max value, it may cause overheating of the Air Unit, which will disable the Active Pitch function, until the system cools down.


THE HUB MENU SCREENS OVERVIEW – PITCH PROFILE

| The HUB Pitch Profile Curve | ||
| 1 | Interceptor Stroke (in %) | Each column in the Curve Edit Area (3) shows the percentage of the Interceptor Stroke(Deployment), according to different speeds. |
| 2 | Speed (in kts) | 10 segments of Total Speed Range, where the operator can set different percentage of interceptors’ deployment. |
| 3 | Curve Edit Area | Tap and hold the column to adjust the percentage. |
| 4 | Reset to Defaults | Applies to for all Profiles: Initializes the values, according to a selected vessel’s specs. |
| 5 | Save Temporary Values | Stores the temporary (Offset) values as default values. |
| 6 | Reset Offset | Deletes the temporary (Offset) values. |
| 7 | Profile Selection | Tap to select the desired profile. (up to 3 different options) |
| 8 | Boat Specifications | Displays the vessel’s specifications. (see Pg.9). |
IMPORTANT NOTE:
After successfully entering all the necessary values in “Boat Specifications” screen, The HUB sets automatically a Pitch Profile Curve, which is stored in “Profile 1”. The vessel’s operator can create their own pitch profiles, or edit the already existing ones, through this menu screen.
THE HUB – WIFI SETUP
To access the WiFi Setup, tap the WiFi icon on the MFD Main Screen, which will lead to the following screen:

- Tap the WiFi Network bracket, to drop down the list of the available WiFi networks.
- Select the desired network.
- Type the password, and then tap the Connect button.
- A highlighted text will appear after the (un)successful connection.
- An established WiFi connection is necessary, if you wish to update the device’s firmware (see. Pg. 11)
IMPORTANT NOTES
- After the successful connection to a WiFi network, The HUB saves this network, for a quicker future connection, without having to type again the password.
- The HUB does not connect automatically to any WiFi Network. Always connect The HUB to trusted networks.
- Keep your network passwords in a safe and accessible place.
THE HUB – SYSTEM PROFILE INFORMATION
Displays useful information, such as IP Addresses, current software versions etc.

TROUBLESHOOTING

If you are still having issues with The HUB, please contact Hydro Tab’s Technical Support Dpt. support@hydrotab.gr
Marine Engineering
- Disclaimer
The interceptor units are also steering equipment and it is the sole responsibility of the navigator-operator to ensure that, at any point, any problem that will alter the vessel’s course, rising from malfunction of interceptors, should be dealt immediately by the operator.
Under no circumstances, fault of our interceptor equipment leading to any kind of accident, creates liability for the manufacturer. - Trademark Notice
Hydro Tab is a registered trademark of Olympic Engineering Ltd, Greece. All other trademarks, trade or company names referenced herein are used for identification only and are property of their respective owners. - Patent Notice
Hydro Tab products are protected by patents and industrial design patents, patents pending or design patents pending. - Declaration of Conformity
This product conforms to the following Electromagnetic Compatibility (EMC) regulations and standards for use in marine environments: CE EN 60945
Technical Information and Documentation
The technical information provided in this document was accurate and correct at the corresponding production time of the Hydro Tab interceptors. Our operating principal for improving the manufactured product, may lead to changes regarding its specs, without prior notice. Liability will not be held for any inaccuracy, considering the product and the user manual.
Fair Use Statement
This manual can be printed or copied for private use only. Copies should not be provided to third parties and manual should not be commercialized.
Product Disposal
Waste removal of this product must be done, according to the Waste Electrical and Electronic Equipment (WEEE) Directive.
Product Registration
Please register your product online in order for the warranty to be valid.
- 4, Papazoglou Str. GR-17778 Athens Greece
- email: info@hydrotab.gr
- website: www.hydrotab.gr
Documents / Resources
![]() | 300SR HTML Interceptor Set |
References
- hydrotab.grwww.hydrotab.gr
- User Manualmanual.tools

