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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.
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)