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portable Electric fishing devices à engine Hans Grassl

Portable Electric fishing devices – HANS GRASSL with engine

Portable Electric Fishing Devices – Hans Grassl with Combustion Engine

Hans Grassl’s portable electric fishing devices equipped with combustion engines are designed for electrofishing operations in various aquatic environments, including rivers, lakes, and areas with high conductivity. These devices are particularly well-suited for scientific research, fishery management, and conservation efforts.

Hans Grassl Combustion Engine Models

Hans Grassl offers several models of electric fishing devices powered by gasoline engines, providing increased power and autonomy for field operations.

These devices are intended for use in both freshwater and brackish water, in accordance with VDE standards and IEC 60335-2-86 guidelines. They are suitable for fish harvesting, capturing broodstock or juveniles, and monitoring natural population control.

Operation and Safety

Hans Grassl devices use a power generator that converts the energy from the combustion engine into pulsed electric current, which is delivered into the water through an anode (often a metal rod with a ring at its end) and a cathode (usually a submerged cable or metal plate). This current triggers a reaction in the fish called "electrotaxis," drawing them toward the anode, where they can easily be captured with a net.

The use of these devices is regulated and requires specific authorizations. It is essential to follow safety instructions, including the use of protective equipment (gloves, insulated boots), and ensure the device is operated by trained personnel. An emergency stop switch is usually included to immediately cut the current if needed.

Advantages of Combustion Engine Models

  • Extended Autonomy: Gasoline engines allow for longer fishing sessions without the need to recharge batteries.

  • Increased Power: Suitable for high-conductivity areas or large bodies of water.

  • Durability: Built for intensive field use.

Important Notes

  • The use of these devices is subject to strict regulations and requires specific permits.

  • It is vital to follow the user manual and adhere to all safety guidelines.

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Modèle
Quantity

For use in fresh and brackish water, manufactured in accordance with VDE standards and IEC 60335-2-86 directive, with direct current or combined direct/pulsed current for:

  • fish harvesting

  • capture of broodstock or juveniles

  • monitoring and regulation of natural populations

Models Reference Name Power output Power Output DC - Volt  pulse Size (L x W x H) mm Weight (kg)
1 M730300 ELT60II Benzin 1300 watt 300 - 500 V  25 - 100 pls/sec 360-360-570 13.0
2 M730400 ELT62II Benzin 2200 - 3000 watt 300 - 550 V 25 - 100 pls/sec 450-460-740 28.0

Available Accessories

Information:

The most important criteria for selecting the right electric fishing device are:

  • Water conductivity in micro-Siemens (DC version up to 2700 µS/cm, pulsed version up to 20,000 µS/cm)

  • Type of waterbody (stream, shallow river, large river, lake, etc.)

  • Type of setup (portable, stationary on land, or boat-mounted)