Description

The LR-24 Electrofisher is a rugged 24 volt battery powered electrofisher. It is suitable for extensive field work in any weather conditions. The LR-24 uses premium electronic components and circuity housed inside of a custom molded plastic case.

The LR-24 is the most advanced electrofisher ever produced. The user interface is designed to make the LR-24 quick and easy to use. This has allowed us to offer a number of special features not available on previous backpack electrofishers.

Features

Quick Setup

Quick Setup will select a voltage level necessary to achieve 25 watts average power output through the water between electrodes. This setup uses a default setting of a pulsed DC waveform with a frequency of 30 Hz and a 12% duty cycle (equivalent to a 4ms pulse width). All settings can be adjusted up or down from this starting point to achieve levels necessary for fish capture. This is very useful when electrofishing in a new area and you're not sure what settings to use.

Dual Output

This feature allows the operator to set up two completely independent sets of waveforms and voltages and toggle between them simply by releasing and pressing the anode pole switch in less than 1 second. This can be very useful if working in waters with multiple age classes, or multiple species where the optimal settings may be quite different.

Safety Features

Emergency stop switch, twin audible alarms, tilt and immersion sensors and Anode-Out-of-Water sensor, combined with the ETL safety certification make the LR-24 the safest backpack electrofisher available. With the ETL Listed Mark on the LR-24 Backpack Electrofisher, researchers can be confident that they are using the safest backpack electrofisher in the world.

Power Limit Key and Power Limit Mode

The Power Limit Key allows the user to limit the maximum average output power. It is defaulted to 400 watts, which is the maximum average power output that the LR-24 is capable of producing. It can be easily changed to a lower limit, which can be useful if a study requires staying within a certain power level. The user can decide whether the frequency or the voltage will be automatically decreased in order not to exceed the output power at that limit.

Precise control over output settings

Voltage can be adjusted in 5 volt increments, frequency in 1 Hertz increments, and duty cycle (pulse width) in 1% increments. This is very desirable given study results which indicate that fish injury rates decrease corresponding to decreases in all of these settings. Exact control of the settings allows for much greater control of the output waveforms.

Numerous waveform choices

The LR-24 can produce straight DC, pulsed DC, and Burst of Pulses (previously known as CPS waveform).

Storage locations for up to 10 user selected settings

There are 10 storage locations available to either pre-program desirable settings or to store settings currently in use. These storage locations are filled with Factory Default Stored Waveforms, but can be replaced one by one with settings the user prefers. These can be pre-programmed before going in the field or saved and stored while in the field. This can be very useful if a setting has been found to be very effective with a particular species, or it can be of use if a project supervisor wants to standardize sampling and provide settings for crews to use in the field. Factory default stored waveforms can be restored if desired.

Rugged ABS Construction

Offers tough structural support in a light-weight pack-frame and integrated control box enclosure. The removable battery cover protects all cable connections from environmental conditions and wear and tear.

Suspension System

The easy-to-fit Cordura suspension harness allows for quick adjustment, making multi-user operations fast, simple and convenient. The quick release function makes it safer to operate in rough field conditions.

What's Included

• LR-24 Electrofisher
• Adjustable Shoulder Harness
• 6' 2-Piece Electrode Pole (07575)
• 11" Adjustable Aluminum Electrode Ring (07613)
• Rat-tail Cathode (06821)
• Two 24V 7Ah Batteries (06681)
• BC-24PS Battery Charger (06815)
• Wheeled Travel and Storage Case (09632)

Specifications

• Conductivity Range: 10 to 1500 µS/cm
• Input Voltage: 24VDC Nominal
• Input Current: 20A Max.
• Input Monitoring: Battery voltage and current plus fuel gauge type display for battery voltage
• Output Voltage: 50 to 990V in 5V steps
• Output Current: 40A peak max, 4A continuous at 100V
• Output Waveforms: Smooth DC, Pulsed DC, Burst of Pulses DC
• Output Frequency: 1 to 120Hz in 1Hz steps (Burst of Pulses frequencies up to 1000Hz
• Duty Cycle: 1% to 99% in 1% steps
• Waveform Storage: Save voltage, frequency, duty cycle and pulse type for 10 different waveforms
• Output Power: 400W maximum continuous, 39,600W peak
• Operational Duty Cycle: 40% Max. (192 seconds on 288 seconds off) at 40° C ambient 400VA output
• Overload Protection: Excessive peak current, average current or over-temperature will shutdown the unit before damage can occur. Resets automatically when condition is corrected
• Output Indicator: Audio tone for 30VDC and greater and increasing pulse rate for output power, Flashing red light, Status display for output voltage both average and peak, output current both average and peak and output power
• Output On Timer: 0 to 999,999 seconds, resettable via menu
• Environmental Requirements: Operational altitude: -400 to 3000 meters; Relative humidity: 10% to 90% noncondensing; Operating temperature: 0° to 40° C; Storage temperature: -15° to 50° C
• Construction: Sealed molded polyethylene and ABS case NEMA 4, IP 65
• Safety Devices: Tilt switch: Forward 50°, backward 40°, sideways 45° all ± 10°, Immersion sensor, Electrode out of water sensor, Electode pole switch, Emergency stop switch, Battery compartment interlock, Battery fuseable link, Quick release shoulder harness
• Battery: Choice of 24V sealed, deep discharge batteries. 2.2Ah, 7Ah or 12Ah
• Battery Life: 40 minutes continuous at 100W with 7Ah battery
• Dimensions (D x W x H): 14.5" (36.9 cm) x 14.5" (36.9 cm) x 27.5" (69.9 cm)
• Weight: 33 lb. (15 kg) with 7Ah battery
• Certifications: UL STD 61010A-1
  CAN/CSA C22.2 STD NO. 1010.1

For more information, please visit this products webpage.