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Smith-Root LR-20 Series User Manual

Backpack electrofishers
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USER'S GUIDE
LR-20 SERIES
BACKPACK ELECTROFISHERS
09441.09 LR-20 Series Manual

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  • Page 1 USER'S GUIDE LR-20 SERIES BACKPACK ELECTROFISHERS 09441.09 LR-20 Series Manual...

  • Page 2: Table Of Contents

    A. Model 12/15-D Settings Chart ........23 B. Specifications ..............24 C. Glossary ................25 Items manufactured by companies other than Smith-Root carry the original manufacturer’s warranty. Please contact product manufacturer for return instructions. All Smith-Root, Inc. manufactured products are covered by a one-year warranty.

  • Page 3: Introduction

    USER’S GUIDE INTRODUCTION The LR-20 Series Backpack Electrofisher offers the safety and ruggedness of the LR-24 with the reliability of our classic Model 12, while using the accessories of our standard LR-24. The LR- 20B is an ideal transitional unit from our classic Model 12; it shares many...

  • Page 4: Overview

    LR-20 SERIES BACKPACK ELECTROFISHER OVERVIEW OVERVIEW Take the time to familiarize yourself with the LR-20's features before electrofishing. FEATURES K. Timer Reset/Menu Select Button Left: L. LCD Display A. Pack Frame M. Voltage Range Switch B. Cover Latch (2) N. Warning Light C.
  • Page 5 COVER LATCH AND SENSOR: the anode and cathode and also LR-20 Electrofisher v.0.22 CLOCKWISE: LCD display; Power/ Two over-center toggle latches Smith-Root, Inc. when the unit is first switched www.smith-root.com Emergency Shutdown Button; secure the front cover. Cover on and beeping increases in...

  • Page 6: Controls & Connectors

    LR-20 SERIES BACKPACK ELECTROFISHER CONTROLS & CONNECTORS EXTERNAL CONTROLS, CONNECTORS AND SENSORS can only be connected one ON/OFF SWITCH: Located on top *CAUTION: Before con- way. The proper connection of the electrofisher enclosure. To necting or disconnecting for the control connector...
  • Page 7 USER’S GUIDE CONTROLS & CONNECTORS (CONT.) FRONT PANEL CONTROLS AND INDICATORS output of the LR-20 has been active since the last timer reset, the output voltage and current and a fuel gauge type display of the battery voltage. The backlight of the LCD display is always on when the electrofisher is on;...

  • Page 8: Battery Installation

    LR-20 SERIES BACKPACK ELECTROFISHER BATTERY INSTALLATION BATTERY INSTALLATION AND SAFETY BATTERY INSTALLATION To ensure operator and unit safety, as well as the life of the battery, care must be taken to make sure that the battery is installed correctly. The easiest way to install the battery is to place the electrofisher on the ground (or similar safe, dry surface), rather than on the operator's back.

  • Page 9: Packframe

    USER’S GUIDE PACKFRAME The packframe allows for various positions of the shoulder straps and waist belt to fit most people. The straps and belt all have quick release latches that allow the Electrofisher to be removed quickly if the operator falls into deep water or becomes injured*. For more information regarding emergency quick release procedure, see Quick Release System on page 22.

  • Page 10: Operation

    LR-20 SERIES BACKPACK ELECTROFISHER OPERATION OPERATION Make sure the Electrode ring is clean and shiny. A cloudy, dull-gray Electrode ring will reduce your catch per unit effort and will increase the injury rate of fish. Initial setup of voltage, frequency, and duty...
  • Page 11 USER’S GUIDE OPERATION 10. Duty cycle and frequency can have a huge impact on taxis. Do not be timid about changing these set- tings. In general, lower frequencies are safer for larger fish than higher fre- quencies. If you are not getting any response from fish at all, then change the settings as follows:...

  • Page 12: Safety Features

    LR-20 SERIES BACKPACK ELECTROFISHER SAFETY FEATURES EMERGENCY SHUTDOWN audio tone pulses once per SWITCH second. The large red mushroom • From 50 to 99 watts the switch located on the top audio tone pulses twice per of the LR-20 is the Emer- second.
  • Page 13 USER’S GUIDE 1. Power On-Off Button 9. Visual Output Alert Light 2. Frequency Adjust Knob 10. Cathode Connector 3. Duty Cycle Adjust Knob 11. Anode Connector 4. Timer Reset Button 12. Front Cover Latches 5. LCD Menu Display 13. Control Connector 6.

  • Page 14: Batteries & Charging

    LR-20 SERIES BACKPACK ELECTROFISHER BATTERIES BATTERIES: BATTERY CARE AND MAINTENANCE BATTERIES CHARGING The Universal Battery Char- READ THESE ger (UBC-24) is designed to INSTRUCTIONS BEFORE charge lead-acid and lithium USING THE CHARGER batteries for the LR-24, The battery charger is...

  • Page 15: Charging

    USER’S GUIDE From AC UBC-24 BATTERY CARE AND MAINTENANCE (CONT.) Battery Under Test HOW TO CHARGE BATTERIES BAT-01 1. The charger and battery should be placed in a well- ventilated area during charging. 2. Do not connect the charger to the socket before it is connected to the battery.
  • Page 16 LR-20 SERIES BACKPACK ELECTROFISHER BATTERIES BATTERY CARE AND MAINTENANCE (CONT.) BATTERIES SRI BATTERIES The electrofisher uses a 24 do not have a memory). Total number of charge/discharge volt sealed deep cycle battery. cycles possible varies inversely Understanding the proper care of this battery will reduce with depth of discharge on problems in the field.
  • Page 17 USER’S GUIDE BATTERY CARE AND MAINTENANCE (CONT.) BATTERY TIPS & PRECAUTIONS BATTERY STORAGE 1. Keep the battery charged! The most frequent cause of INSTRUCTIONS battery failure is not recharging after each use. Fully charge batteries 2. Extreme temperatures kill batteries. Avoid storage before placing in storage.
  • Page 18 LR-20 SERIES BACKPACK ELECTROFISHER BATTERIES BATTERY CARE AND MAINTENANCE (CONT.) BATTERY RATING Life Load Capacity Batteries are rated at the current which will reduce 20 hr 0.60A 12.0Ah the voltage per cell to 1.67 volts in 20 hours. The 10 hr 1.05A...

  • Page 19: Battery Maintenance & Diagnostic Equipment

    It may also be used to accurately test any Smith-Root 24 Volt battery where the battery condition is either unknown or is questionable.

  • Page 20: Electrofishing Safety

    LR-20 SERIES BACKPACK ELECTROFISHER SAFETY ELECTROFISHING SAFETY Electrofishing equipment uses voltages and currents that can be lethal to humans. The operators must always keep in mind that the chance of receiving an electrical shock is multiplied in or near water. If used properly and with good judgment, an electrofisher is perfectly safe; lose...
  • Page 21 USER’S GUIDE ELECTROFISHING SAFETY (CONT.) PERSONAL PROTECTIVE EQUIPMENT WHAT IS ELECTRICAL SHOCK? • First aid kit. It is the current that passes through • Non-breathable chest waders or non-breathable the human body that does the hip boots with non-slip soles. damage.
  • Page 22 LR-20 SERIES BACKPACK ELECTROFISHER SAFETY ELECTROFISHING SAFETY (CONT.) PREVENTING ELECTRICAL SHOCK Electricity needs to have a complete electrical circuit in order for current to flow. The only way that someone can get shocked is if they become the electrical conductor to complete the circuit.
  • Page 23 WARNING: Operating this equipment in a manner not specified in this manual, making modifications, or using accessories not approved by Smith-Root, Inc. may impair the protection offered by the equipment. • Have electrical circuits checked only by qualified technicians.

  • Page 24: Quick Release System

    LR-20 SERIES BACKPACK ELECTROFISHER SAFETY ELECTROFISHING SAFETY (CONT.) QUICK RELEASE SYSTEM It may be necessary in some circumstances to remove the electrofisher backpack quickly. Both the LR-24 and LR-20 have an integral quick release pack frame. Just press the latch tabs on the waist belt and shoulder straps and the entire LR-24 falls away.

  • Page 25: Model 12/15-D Settings Chart

    USER’S GUIDE APPENDIX A: MODEL 12-B/15-D SETTING CHART Use this chart to convert settings used with the 12-B or 15-D to settings on the LR-20. Example: If H2 were used with the model 12-B, the corresponding settings for the LR-20 would be 50Hz at 5% Duty cycle.

  • Page 26: Specifications

    LR-20 SERIES BACKPACK ELECTROFISHER SPECIFICATIONS APPENDIX B: SPECIFICATIONS SPECIFICATIONS Conductivity Range: 10 to 1950 μS/cm ( microsiemens per centimeter) Output Power: LR-20B: 400W continuous, 39,600W peak; LR-20: 200W continuous, 39,600W peak Output Voltage 50 to 990V in 11 steps (50 to 400V in 50V steps, 500V, 700V, 990V)

  • Page 27: Glossary

    USER’S GUIDE APPENDIX C: GLOSSARY OF TERMS Amp: The unit of measure expressing the quantity of electricity flowing in a circuit. Analogous to water quantity flowing in a pipe. Amp is an abbreviation for Ampere. Anode: The positive terminal on a battery or forward facing electrode on an LR-24. Cathode: The negative terminal on a battery or rear facing electrode on an LR-24.
  • Page 28 (360) 573-0202 Vancouver, WA USA www.smith-root.com...

This manual is also suitable for:

Lr-20b

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