1. Separate Transmitter and Mechanical Base
Separate the electronic transmitter from the mechanical base.
2. Determine Probe Sensor Wire Length
Determine the required probe sensor wire length. The active length is indicated in the diagram.
Diagram showing the HBLT-W3-Wire level sensor with its attached wire, indicating the active length 'L'.3. Cut Wire and Attach Counterweight
Cut the wire to the needed length and attach the counterweight.
The sensor length is determined by the standpipe length or tank height. Cut the insulated steel wire to the desired measuring length using a wire cutter. The sensor will measure to the end of the wire without any dead zone. A 25 mm (1") distance from the wire end to the bottom is needed to ensure linearity at the bottom.
The wire is passed through the counterweight and fixed by the 2 HEX screws. The free wire below the counterweight should be between 10 to 50 mm (1/2" to 2").
Image sequence showing: 1. A hand using a tape measure to mark a wire. 2. The end of the sensor wire prepared for attachment. 3. A close-up of the counterweight with two HEX screws securing the wire.4. Connect Sensor to HB Tool
Use the M12 to USB-A programming cable to connect the sensor to the HB tool. You can find the tool at: https://www.hbproducts.dk/en/hb-tool
Illustration of the M12 to USB-A programming cable connecting a sensor to a laptop, alongside a QR code for accessing the HB tool.5. Open Tool and Scan for Sensor
In the tool:
- Go to basic settings.
- Fill in the sensor length and other fields specifying the mechanical type.
- Adjust the filter time if needed.
- Optionally, set up an alarm or type in offsets.
- Click on "Save to sensor".
The calibration is now calculated, and the setup is done. The sensor needs to be installed in a metallic vessel before it can provide an output. The sensor will deliver 4 mA when it is empty and 20 mA when full.
Screenshot of the HB Products configuration tool software, displaying basic settings for the level sensor, including fields for mechanical type, sensor length, filter time, and calibration options.6. LED Indication with 24V Connection
| LED Signal | ON/OFF/Frequency | Functionality |
|---|---|---|
| Green | Flash | In operation |
| Green | OFF | No supply voltage |
| Red | Flash | No connection to mechanical unit |
7. Installation
The mechanical part is installed in the system using liquid sealant or PTFE tape. The electronic unit must be tightened firmly to secure a good electrical connection. Pliers can be used for tightening.
8. Electrical Connections
The M12 male connector is used for electrical connections. Standard wire colors are assigned to specific functions:
- Brown: +24V DC or AC
- White: Common
- Blue: DO, Alarm output
- Black: AO, 4-20 mA level
- Gray: Communication only
These connections interface with PLC systems, typically as Digital Input (DI), Analog Input (AI), or Digital Output (DO).
Diagram illustrating the electrical connections for the M12 male connector, detailing pin assignments for power, alarm, analog output (4-20 mA), and communication, with corresponding PLC input/output types. Also, an image of the sensor head showing status LEDs and connection ports.9. More Information
A complete manual can be found here: HB Products Manual Link
For any inquiries or further information, please contact HB Products A/S at support@hbproducts.dk.
HB Products A/S
Bøgekildevej 21
DK-8361 Hasselager
Phone: +45 87476200
www.hbproducts.dk
mailto:support@hbproducts.dk
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