LR-20 Series LR-20 Serie LR-20 Series R-20 Series - Smith-Root
Contents
1. 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 Note that the LR 20 does not have pulse width settings Standard Pulses Model 12 B and 15 D OA m ms ams ams ems 7ms ams B su m ms ams ams oms ems p ise sous ims ams ams oms ems E 20H 5oous ims 2ms 4ms 6ms ams Duty cycle and Output Frequency f p f som sous ims ams ams oms oms Pa ion sous tms 2ms ams oms ems M soe sous tms ams ams ams ems 1 seo sous tms 2ms ams ams ems Kk eoz sos tms 2ms ams ams ams m com 100u amp soos ims 2ms ams ems C n noz 1000s sous tms ams ams oms o toe row sous tms ams ams dm See diagrams at left for an explanation of Duty Cycle Output Frequency and Gated Bursts PULSE WIDTH FREQUENCY Pulse width x Frequency x 100 Duty Cycle in Period Width Between pe gt Burst 3 pulses Bu ie rate 7 Period Gated Burst Duty Cycle Percent LR 20 LR 20B oe em ume vom some aire come ume em em sim eme rome sine ae o o e em e e ee e one e e 8e e e mm en Fo ee um rm pe eme e ine pe nme m pue pm atm erem wee fm ae e2. Cycle switches Cover Latch nn IMMERSION SENSOR Automatically turns the output off when water bridges the sensing contacts ANODE CONNECTOR Provides the high voltage connection for the anode electrode CONTROL CONNECTOR Provides the low voltage control connection to the pole switch CONTROL Arra CATHODE CONNECTOR Provides the high voltage e connection to the cathode electrode CEE ARE Left to right Cathode connector BATTERY CONNECTOR Provides power to the unit from power cord control connector the battery anode connector COVER LATCH AND SENSOR Two over center toggle latches secure the front cover Cover must be closed and latched before the output of the unit can be activated 3 www smith root com USER S MANUAL CONTROLS amp CONNECTORS mures TN AND SENSORS 1 i Di On Off Switch w Emergency Cover opened to provide off cover access to controls ye tats ON OFF SWITCH Located on the right side of the electrofisher under the red emergency off cover To turn the unit on raise the cover and push the switch up to the on position To turn the unit off press down on the red emergency off cover ANODE CONNECTOR Located on the bottom right corner of the electrofisher the large black 2 socket connector provides the high voltage connection for the anode electrode This connector has a locating lug that assures the anode pole can only be connected one
3. Just press the latch tabs on the waist belt 1 and shoulder straps 2 and the entire unit falls away The following procedure illustrates how the quick release system 1s designed to work 1 Squeeze the release tabs on hip belt buckle to remove hip belt 2 Squeeze the release tabs on either shoulder strap 3 With strap detached shrug off opposite shoulder strap 4 This will allow the pack to fall away from you very quickly Move away from pack as it falls LIEE CLIPS ji h mh CABLE STRAIN DOVER ATP NIIT TN n DOE HEY 4 AE a taper ee ir Vite ef J HS i There j HMM TE Fig 2 Right side Fig 3 Left side These clips are designed to prevent the anode and cathode cables from traveling beyond their recommended range of motion and to relieve undue strain on the connector plugs Make sure that the ring mounted swivel clip on either side of the packframe is attached to the electrode cables as shown in Figs 1 3 Using the rings and clips in the manner indicated will transfer the weight of the electrode cables to the packframe and offset the possibility of damaging either cable or their respective connectors WARNING Without Cable Strain Relief Clips the anode and cathode connectors or their cords could become damaged 7 www smith root com OPERATION USER S MANUAL OPERATION Make sure the Electrode ring is clean and shiny A cloudy
4. 33 Ibs e 13 LX13 3 4 W X 29 3 4 H 2009 24 W SMITH ROOT INC 14014 NE Salmon Creek Ave Vancouver WA 98686 USA 360 573 0202 Voice 360 573 2064 FAX info smith root com www smith root com
5. ELECTROFISHER OVERVIEW Cont OUTPUT FREQUENCY controls the output frequency or pulses per second of the electrofisher DUTY CYCLE 71 DUTY CYCLE Controls the percentage of time the output pulse is on out of the time from the start of one output pulse to the start of the next output pulse L Frequency TIMER RESET Resets the seconds counter display to zero LCD DISPLAY Shows the number of seconds the output Duty cycle and Output Frequency Of the unit has been active since the last timer reset the peak output voltage and current the average battery voltage and current a fuel gauge type display of the battery voltage heat sink temperature and waveform settings AUDIO ALARM Provides loud audio warning whenever 30 volts or more are present between the anode and cathode and also when the unit is first switched on WARNING LIGHT Flashes once per second whenever 30 volts or more are present between the anode and cathode and OUTPUT CONTROL also when the unit is first switched on JEE EMERGENCY SHUTDOWN SWITCH Turns unit on Wed D when the red cover and switch are in the up position Also Mi serves as an emergency shutdown switch by means of red flip Clockwise LCD display Power down cover DC Gated FREQUENCY DUTY CYCLE Emergency Shutdown Switch VOLTAGE RANGE SWITCH Controls the output voltage Output Frequency and Duty of the electrofisher Voltages between 50 and 990 volts may be
6. battery has a 12 amp hour rating However its life at 100 watt continuous would be only 120 minutes As the discharge current is increased the efficiency and relative capacity decrease BATTERY LIFE Each time you cycle a battery it loses some of its ability to take a charge Deep cycle batteries are capable of being charged and discharged from 100 up to 1 000 times depending on the depth of the discharge and the type of charger used Service life and shelf life are both adversely affected by warmer temperatures BATTERY STORAGE Batteries stored at room temperature will self discharge at 3 to 6 per month Storage temperature above 20 C should be avoided Shelf life can be increased by storing at lower temperatures but store at above 30 C to prevent freezing Batteries should be fully charged before storing and should be recharged every four months EFFECTS OF TEMPERATURE The temperature at which a battery is used also affects the relative capacity of the battery Figures 3 and 4 show that in cold weather the shocking time will be less and the battery will have less capacity Life Load Capacity Fig 1 Relative capacity of 12Ah deep cycle battery Overload Discharge current amp 7 M1 77 ny 45min 10 30 60 2hr 5 10 20 Fig 2 Discharge curves for 12Ah and 7Ah batteries 100 2 80 E 5 60 c 2 40 tc
7. cost effective alternative to purchasing multiple battery chargers because it can recharge four batteries at once BAT 01 BATTERY ANALYSIS TOOL The Battery Analysis Tool sold separately operates in conjunction with the BC 24PS Battery Charger It tests all models of 24V backpack batteries adaptors included and in a clear and concise manner gives the usable battery life remaining This tool is not to be used during each charge discharge cycle but rather is intended to be used a few times a year just prior to actually using the batteries It may also be used to test accurately any Smith Root 24 Volt battery where the battery condition is either unknown or is questionable In practice The Battery Analysis Tool is plugged into a standard Smith Root BC 24PS and also the battery under test The battery will begin to charge as soon as the charger is plugged in Do not use an MC 24 Maintenance Charger for this test MC 24 Maintenance Charger 06811 BAT 01 Battery Analysis Tool 08041 19 www smith root com ELECTRODE POLE TESTING Connect an ohmmeter to the pins in the larger connector The meter should read 0 ohms Leave one lead of the ohmmeter connected to one of the pins in the large connector and connect the other lead of the meter to the metal socket in the bottom end of the pole The meter should read 0 ohms 3 Refe
8. please leave for their own safety If they refuse to leave stop electrofishing load your equipment and leave the area WARNING Operating this equipment in a manner not specified in this manual or with accessories not approved by Smith Root Inc may impair the protection offered by the equipment 2009 12 LR 20 LR 20B KI Electrofishing Safety Cont ELECTRICAL SHOCK It is the current that passes through the human body that does the damage The voltage is relevant because it is the force that pushes the current through the body Experiments show that 20 to 500 Hz AC current is more dangerous than DC or higher frequencies of AC The voltages used by electrofishing gear cause can death by one of three means Ventricular Fibrillation Ventricular fibrillation is uncoordinated contraction of the muscles of the heart The heart quivers rather than beats Electrical current through the chest can cause this condition Once a person goes into ventricular fibrillation the only way to stop the quivering is to use a defibrillator that applies a pulse shock to the chest to restore heartrhythm Cardiopulmonary resuscitation may help to keep a victim alive until he can be defibrillated Respiratory Arrest The respiratory center is at the base of the skull Thus shocks to the head can cause the breathing to stop Artificial respiration by the mouth to mouth method should be used in this case Asphyxia Asphyxia i
9. pulses four times per second The LR 20 and LR 20B have an integral quick release pack frame Simply lift one of the two tabs on the shoulder straps while unlatching the waist belt and Flashing Red Light shrug the entire unit away X CAUTION Always unlatch LINC the chest strap of the pack before dm entering or crossing water LR B If left latched this strap may we 3 Audio Alarm prevent the user from quickly removing the FRO MEU Ie LR 20B in the event of an emergency such as jp NT COvra Milise falling into deep water FLASHING RED LIGHT Bright long life LED lamps flash whenever the unit is turned on and 30 volts or more is present between the anode and cathode 2009 10 LR 20 LR 20B BACKPACK ELECTROFISHER SAFETY QUICK LIST 1 Atleast two members of the crew must have current first aid and CPR cards 2 Make sure every member of your crew knows where the nearest hospital is and how to get there or where to go to get help 3 All members of the crew should have completed an electrofishing course 4 Before loading up equipment and heading into the field make sure every member of the crew knows your evacuation routes in case of an accident 5 Check the equipment for damaged or missing parts and for proper operation Never use an electrofisher that is in poor condition or not working correctly as it can present a severe shock hazard 6 Check the cathode cable for wea
10. upper left of the front panel This switch controls the output frequency or pulses per second of the electrofisher When the duty cycle switch is set to DC Gated Burst 2 pulse or Gated Burst 3 pulse this switch has no effect on the output of the electrofisher DISPLAY Located in the top center of the front panel The display shows the number of seconds the 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 this allows easy viewing of the display even in deep shadows without the need to open the front cover and turn on another switch VOLTAGE RANGE SWITCH Located on the left side of DC FREQUENCY DUTY CYCLE LR 20 Electrofisher v 0 22 Smith Root Inc www smith root com VOLTAGE RANGE L egy SMI H ROOT INC Backpack AN For Fisheries Conservation LR 2 0 Electrofisher m www smith root com A ATTENTION FRONT COVER MUST BE CLOSED FOR UNIT TO OPERATE CATHODE CONTROL mms ANODE PES FRONT PANEL Top to bottom left to right Frequency Duty Cycle knobs Timer Reset Button Display Window Voltage Range Switch Audio Alarm Warning Light the front panel This 11 position switch controls the output voltage of the electrofisher Voltages between 50 and 990 volts may be selected WARNING LIGHT Located in the bottom center of th
11. way The proper connection for the anode pole is with the cable pointing away from the backpack BATTERY POWER CONNECTOR Located on the bottom left center of the electrofisher this red and black color coded connector provides power to the unit from the battery To connect a battery to the electrofisher match the colors on the battery connector to the colors on the battery s connector red to red and black to black A disconnecting a battery to the unit make sure the power switch is in the off position failure to do so may cause damage to the battery and the electrofisher WARNING Reversing the connectors N will damage the electrofisher and may cause serious injury or death CAUTION Before connecting or N a Connectors left to right Cathode Battery Control Anode Bo Mate CATHODE CONNECTOR Located on the bottom left corner of the electrofisher the large black 2 socket connector provides the high voltage connection to the cathode electrode This connector has a locating lug that assures the cathode can only be connected one way The proper connection for the cathode is with the cable pointing away from the backpack CONTROL CONNECTOR Located on the bottom right center of the electrofisher the small black 4 socket connector provides the low voltage control connection to the pole switch This connector has a locating lug that assures that the control connector can only be connected one way T
12. 4V 22Ah Battery 07466 2009 16 LR 20 LR 20B E A i BAC PACK ELECTROFISHER BATTERY CARE AND MAINTENANCE CONT BATTERY TIPS amp PRECAUTIONS 1 2 Keep the battery charged The most frequent cause of battery failure is not recharging after each use Heat kills batteries Avoid storage in exceedingly warm areas Recommended operating temperatures are between 5 and 35 degrees C maximum 15 to 50 degrees C The energy available on a given discharge cycle decreases at low temperatures and increases at higher than normal temperatures Increased temperatures increase the gradual processes of very slow corrosion which normally occur in all lead acid batteries Avoid heavy vibrations or shocks which may cause internal damage Foam packing 1s cheap insurance Avoid contact with oils or solvents which may attack the battery case ABS plastic resin Clean with soap and water only Do not crush incinerate or dismantle the battery The electrolyte contains sulfuric acid which can cause serious damage to eyes and skin Dispose of old batteries at a battery recycler Note that all batteries should be charged after each use even if the battery was only slightly discharged these batteries do not have a memory Total number of charge discharge cycles possible varies inversely with depth of discharge on each cycle Over discharging or completely discharging
13. SER S MANUAL BATTERIES SPECIFICATIONS np t n 120 Volts AC 60Hz 200 VA O mea A 5 Amps DC 24 Volts Dimensions 6 5 W x 5 25 H x 6 0 D VVC IG Fil Seon e a 9 5 Ibs 2009 14 LR 20 LR 20B BACKPACK ELECTROFISHER BATTERY CARE AND MAINTENANCE CONNECTORS AND INDICATORS INPUT POWER CORD The input power plug is a standard 120VAC three pin with ground OUTPUT CORD AND CONNECTOR The connector on the end of the cord is wired to plug directly into the quick disconnect connector on the battery pack 45 E o FRONT PANEL INDICATORS The seven front panel E 22 v 124 indicator lamps are labeled to indicate the battery s state of Charge 50 charge see fig 7 1 f Ready ssn CHARGER OPERATING INSTRUCTIONS This charger is suitable for use with all types of lead acid batteries including the new types of maintenance free and gelled electrolyte batteries 1 Connect charger to battery 2 Connect the charger to the AC power The state of charge is shown by the LED indicators on the battery charger as follows The red Charge LED will light to indicate that the battery is correctly connected and is charging During charging the current flowing into the battery is indicated by the LED Amp Meter This is the vertical group of four red LEDs located directly above the Charging LED At the start of charge if the battery is in normal condition all four red LEDs will be on and will gradually go
14. STER This test device allows customers using Smith Root type LR 24 LR 20 and Model 12 15 backpack Electrofishers to test their anode poles and cathodes rat tails in a simple concise manner that requires minimal interpretation The test device is designed to give a clear go no go test of both anode poles and cathodes as well as some limited indication of what is likely wrong with the item being tested The Electrode Cathode Tester is simple to use and negates the need for any other test equipment such as a volt meter or continuity tester It is self contained and except for periodic replacement of the battery requires no service or calibrations The tests can be performed Electrode Pole Anode pole tester by one person with no assistance Electrode Pole amp Cathode Pole Tester 08115 21 www smith root com USER S MANUAL SETTINGS LR 20 OPERATION HINTS Make sure the Anode ring is kept clean Anode rings are made from aluminum and will eventually develop an oxide coating that will give the ring a dull appearance This coating impairs the transfer of electricity from the electrode to the water and can be removed with fine steel wool To maximize battery life always connect batteries to their charger as soon as possible after use Resist the temptation to put a net on Anode rings Nets have the following very undesirable characteristics 1 They present a safety hazard since it can place the opera
15. USER S MANUAL R 20 Series Backpack ELEGTROFISHER includes models ER 20 200w and ER 20B 400W TO RESET HA FREDUENCT DUTY CYCLE Lx 73 E A fas EEE ee Par VOLTAGE AANGE JA ATTENTION FRONT COWER MUST BE CLOSED FOR GUHIT TO OPERATE CATHODE CONTROL ANODE TH 821 menus ADDS Products Brit peg EO 09441 03 USER S MANUAL LR 20 Series Backpack Electrofisher Operation and maintenance CONTENTS PCE OO WCHION da ne a 1 OV CT VOW sree 2 Controls amp Connectors ss d y ud ci m 6 Cable Strain Relief Clips ssssse 7 Operation assure 8 Safety Features eee rre rennes 9 Electrofishing Safety 11 Battery Care amp Maintenance 13 Battery Maintenance amp Diagnostic equipment 19 Electrode Pole Testing sssss 20 Cathode Testing 21 Electrode Cathode Tester 21 LR 20 Operation Hints 22 Cleaning amp Maintenance 22 Model 12 15 Settings Chart 23 Specifications osocertireretieivesesereebu sedis no Sein comes 24 Items manufactured by
16. 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 Credit amp Refund Policy Customers returning equipment in new condition will be given credit within five days from the date of the return A return authorization must accompany returns Valid equipment returns include but are not limited to ordering incorrect equipment funding deficits and defective equipment returned for reimbursement All returns are subject to a restocking fee and applicable shipping charges The restocking fee is figured at 1096 of the purchase price but not less than 20 00 Customers receiving equipment in damaged condition will be referred to the shipping company for insurance reimbursement 09441 03 2009 Smith Root Inc Vancouver WA USA e 2009 LR 20 LR 20B BACKPACK ELECTROFISHER NA Ww VEU TE SLE QU j SX ws ae ih f g E ers rj ATE LC L i Ja is Vs a Mie 4 S Ts e A M fy Th l 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 Either the LR 20 or the higher output LR 20B is an ideal transitional unit from our classic Model 12 it shares many conventions as well as the safety and reliability and accessor
17. 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 cycle should be done outside of your sample area to avoid influencing your statistics Battery Connector Immersion Sensor Make sure the power switch on the side of the control unit is in the off position pressed down Attach the anode and cathode to their output connectors Attach the smaller connector on the anode cable to the control connector of the unit Be sure you know the location of the quick release buckles for the backpack and unlatch the chest strap before entering or crossing the water Check with each crew member to be sure they know you are ready to turn on the power Connect the battery Turn on the power Do not press the anode switch Check the operation of the tilt switch by bending forward until the tilt switch activates about 55 degrees and the tilt message appears on the display Straighten up and the status display should return If the tilt message does not appear do not use the electrofisher send it to Smith Root for repair Place a dampened cloth on the immersion sensor contacts located on the lower left hand corner of the control unit s box behind the cathode connector The display should show the immersion warning When the cloth is removed and the power is turned off and back on the display should return to the status screen If t
18. e front panel Wide viewing angle high brightness red LED s flash once per second whenever 30 volts or more are present between the anode and cathode and also when the unit is first switched On AUDIO ALARM Located on the right side of the front panel A high volume audio alarm with volume shutters provides additional warning whenever 30 volts or more are present between the anode and cathode In addition the beep rate gives an indication of the power being drawn by the unit It also sounds when the unit is first switched on 5 www smith root com USER S MANUAL PACKFRAME 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 Shoulder Strap Adjustment Shoulder Strap Chest Strap Quick Release Padded Waist Belt Pack Frame Waist Belt Quick Release WARNING Always unfasten the chest strap of the pack before crossing or entering the water Should you fall into deep water the chest strap may prevent you from removing the electrofisher quickly 2009 6 LR 20 LR 20B BACKPACK ELECTROFISHER PACKFRAME QUICK RELEASE STRAIN RELIEF QUICK RELEASE SYSTEM It may be necessary in some circumstances to remove the electrofisher backpack quickly The LR 20 has an integral quick release pack frame
19. e it offers resistance to the passage of electrical current Tough skin has more resistance than tender skin and dry skin more than wet skin But tough dry skin alone does not offer enough protection for electrofishing Rubber lineman s gloves rated 1 000V minimum should always be worn Even while wearing rubber gloves and waders never touch an electrode while the circuit is energized Do not work on the electrical system while the generator is running Do not enter the water while the current is on during boom shocking operations A severe electrical shock from electrofishing gear may result in the need for artificial respiration therefore it is imperative that no one ever works alone To prevent electrical shock all electrical equipment should be carefully inspected before each field operation With all electrical equipment in good operating condition and all insulation junction boxes bonding and connections intact there is much less danger of receiving an electrical shock 13 www smith root com BATTERY CHARGER The Smith Root BC 24PS 1s a revolutionary concept in battery charger design This high technology compact device offers a number of benefits not found in conventional chargers The BC 24PS is a truly automatic charger tailored for maintenance free batteries as well as other types of lead acid batteries The BC 24PS has a fully automatic four stage charge sequence with an electronically timed routine a
20. he proper connection for the control connector is with the cable pointing away from the backpack IMMERSION SENSOR Located on the bottom left corner of the enclosure behind the cathode connector The output of the electrofisher is automatically deactivated when these contacts come in contact with water NOTE Although the immersion sensor is located above the battery tray of the LR 20 do not submerge the battery doing so will cause damage to the battery and the electrofisher FRONT COVER The clear window cover of the control panel allows easy observation of the controls and display To open the cover release the over center latches at the top and bottom right corners of the electrofisher NOTE The front cover must be closed and latched before the output of the unit can be activated 2009 4 LR 20 LR 20B ACK ELECTROFISHER gt a p CONTROLS amp CONNECTORS Cont FRONT PANEL CONTROLS AND INDICATORS TIMER RESET Located on the upper right corner of the front panel This switch allows the user to reset the 6 digit seconds timer back to 0 DUTY CYCLE Located on the upper left center of the front panel This switch controls the percentage of time the output pulse is on out of the time from the start of one output pulse to the start of the next output pulse When the duty cycle is set to DC the electrofisher puts out a constant DC voltage determined by the voltage range switch FREQUENCY Located on the
21. he immersion message does not appear do not use the electrofisher send it to Smith Root for repair 2009 8 R 20 LR 20B PAG K ELE CTRC DFIS HER OPERATION Cont 9 Set the frequency duty cycle and voltage switches to the gt values you wish to use If you don t know what values to use JE 30 set the switches as shown below and follow the procedure I FREQUENCY DUTY CYCLE in the next step NOTE The front cover of the electrofisher must be closed to activate the output D EG LM D www smith r off om Frequency 15 Hz X Duty cycle 10 percent Voltage 50 volts VOLTAGE RANGE 10 Duty cycle and frequency can have a huge impact on taxis Do not be timid about changing these settings In general lower frequencies are safer for larger fish than higher fre MITH ROOT INC LR 20 5 quencies If you are not getting any response from fish at Ee oe OQ all then change the settings as follows A ATTENTION FRONT COVER MUST BE CLOSED FOR UNIT TO OPERATE CATHODE CONTROL mmm ANODE Front Panel details a Increase the voltage switch one position and try again Stop increasing voltage when you begin getting a forced response twitch from the fish when you press the anode pole switch b If fish are not showing taxis then increase the duty cycle switch one position and try again If necessary repeat this step until you elicit taxis in the f
22. hen the electrofisher is not in use DON TS 1 Don t electrofish alone 2 Don t continue to electrofish if your boots or gloves get wet inside 3 Don t operate an electrofisher if you have had any prior heart ailments 4 Don t electrofish when you are tired 15 16 17 18 19 20 Never try to reach into deeper pools with the electrodes If you can t safely wade in an area it cannot be electrofished with a backpack electrofisher Only one person on a crew can order the power for the electrofisher to be turned on and that person is the crew leader The crew leader is responsible for the safety of everyone on the crew Any member of the crew can call for or turn off the power to the electrofisher If an accident occurs stop electrofishing and turn off the power to the Electrofisher The person wearing the backpack Electrofisher should leave the water and take the Electrofisher to shore The remaining members of the crew should help or attend to the accident victim Get help for the injured person if necessary Evaluate what happened and make the necessary procedural or equipment changes before proceeding Never electrofish with spectators on shore Electric fields can travel large distances through buried pipes metal culverts and metal sheet piling If spectators show up during electrofishing stop the operation and explain what you are doing Explain the risks to them being there and ask them to
23. ies of the LR 24 Use them for light duty electrofishing or in conjunction with LR 24 units for wider field applications The LR 20 Series is a good addition to your collection of Electrofishers in order to cover all field conditions The LR 20 series comes available in two different models The controls and procedures for both units are virtually e Emergency shut down switch disables identical This manual covers both models the unit e Flashing red output warning light THE LR 20B COMBO CONSISTS OF e Audible output warning system Electrode Pole 6 2PC ccs EDS 07575 e Tilt sensor 1214 Aluminum Electrode Rine n ann 03297 e Water immersion turns output off Rata Eeoae a enue eeneeeearese 06821 Electrode out of water output off 2 DAV 7 Ah Battery 06681 S se ap LE e Non conductive case 1 BC 24ps Battery Charger USA 06815 e Quick release shoulder harness and Case w Wheels amp Retractable Handle 09540 CUP 1 www smith root com USER S MANUAL OVERVIEW CONTROLS AND FEATURES Take the time to familiarize yourself with the LR 20 s features before beginning electrofishing Timer Reset Pack Frame Duty Cycle Output Frequency Cover Latch Emergenc Lcd Display Wm Switch Voltage Range Switch Audio Alarm Cover Latch Warning Light Sensor Immersion Sensor Harness Cathode Anode Connector Connector dnt uum Battery Connector 2009 2 LR 20 LR 20B BACKPACK
24. intenance charger MC 24 they are always ready for use 24V 12Ah 1 When not in use store the charger indoors in a cool dry place preferably with its original packing and carton 2 Place these instructions with the charger during storage MAINTENANCE AND CLEANING Very little maintenance 1s required other than protecting the charger from damage and weather 1 Coil cord when not in use 2 Clean case and cords with a slightly damp cloth 3 Examine cords for damage periodically and replace if necessary with manufacturer approved parts BATTERIES The electrofisher uses a 24 volt sealed deep cycle battery Understanding the proper care of this battery will reduce problems in the field Batteries should never be allowed to remain in a discharged state and should be recharged as soon as possible after use Batteries should be charged until the green lamp on the charger comes on Charging Problems Some older batteries may not charge within 24 PANE ARAN hours If a battery has been left in a discharged condition for a while it may not take a charge If you suspect that the battery has been left discharged charge it for 48 hours and then discharge it with the electrofisher If the battery 1s not taking a charge it will not operate the electrofisher for very long Sometimes by cycling the battery a few 24V 12Ah Battery 06632 times it will start taking a charge again 24V 7Ah Battery 06681 2
25. ish If you increase the duty cycle to maximum and still are not getting taxis then reduce the duty cycle back to 10 and go to the next step c Increase the frequency switch one position and try again If necessary go back to step a before increasing fre quency again Electrode Pole Safety Switch 9 www smith root com USER S MANUAL SAFETY SAFETY FEATURES EMERGENCY SHUTDOWN AUDIO ALARM SWITCH The audio alarm indicates 2 different operating conditions 1 Presence of high voltage in the water When ever the anode and cathode are in the water and more than 30 volts is present while the unit 1s on there will be an audible tone emitted by the alarm 2 Average power output level From 0 to 49 watts the audio tone pulses once The red flip down toggle switch located on the per second right side of the control unit is the Emergency From 50 to 99 watts the audio tone pulses twice shutdown Switch This switch 1s also the main per second on off switch for the Electrofisher To turn the From 100 to 149 watts the audio tone pulses power on the user must lift the red cover upwards three times per second and manually flip the exposed toggle switch to the up position Since the red cover must first be lifted it helps to prevent accidentally powering up the unit Flipping the red cover down will immediately turn the unit off PACK FRAME QUICK RELEASE From 150 to 200 watts the audio tone
26. m fm ate rae re aoe i ae aire oe re te Ts Overall Duty Overall Duty ase anne om eae rane arm are am rene tere ine ame o me frame so e Se e rame 5 e ee e e e a oe A oe e oe oe o ee e e om eee me faune e faune an sem e n aan m orm 8 om ose e n e e m m one m m rm Tem tm Fo oes e ome ae are se om me om se om rane em m usw ppm ame om aime om oem om om om om cm oe vare ram rame ane ae sane oem eins com e Jeune ram m oae oe 1 oe am e e e m vane 9 m m 233 www smith root com Conductivity Range Battery Output Voltage Ranges Output Power Output Frequency Output Duty Cycle Overload Protection Electrodes Timer Metering Weight amp Dimensions USER S MANUAL SPECIFICATIONS SPECIFICATIONS 10 1500 microsiemens per centimeter 24 volt 12AH sealed gel type 50 100 150 200 250 300 350 400 500 700 990 200W LR 20 or 400W LR 20B maximum continuous 10 15 20 25 30 35 40 50 60 70 80 90 100 110 120 5 10 15 20 25 30 35 40 45 50 60 70 80 GB 2 pulse GB 3 pulse DC 15A LR 20 or 25A LR 20B electronic breaker and 40A safety fuse 6 2 piece pole adjustable 11 inch ring Stainless steel rattail cathode 6 digit computer controlled seconds counter e Peak output current e Peak output voltage Battery voltage with fuel gauge type display Battery current
27. nd a desulfation mode STAGE 1 DESULFATION encourages the breakdown of larger sulfate crystals which form during prolonged periods of deep discharge STAGE 2 CONSTANT CURRENT applied to achieve the fastest possible return of energy to the battery STAGE 3 CONSTANT VOLTAGE temperature compensated with adaptive timing to insure maximum charge for each battery this stage provides the final 20 of the total charge STAGE 4 STANDBY FLOAT CHARGE this stage will replace standing losses and keep the battery in a full charged state Batteries may be left in this state indefinitely provided that they are in a well vented area and the AC input is not subject to frequent or periodic power outages switched outlet or bad power Damage to or failure of the battery may cause the charger to stay in high rate mode with subsequent battery venting For float charging situations consider using a MC 24 charger not subject to these limitations for long term battery storage Time to recharge will vary depending on state of charge condition of battery and battery size The rule of thumb is 2 to 3 hours for lightweight 2 5 to 4 hours for standard weight and 3 to 6 hours for heavyweight batteries These charge times are for a battery recently discharged to the low battery cutout on an electrofisher A fully charged battery placed on a BC 24PS charger may not indicate that it is fully charged for as long as 1 2 hours due to the timed charger feature U
28. o 9 e 20 0 Deg C 20 30 40 50 60 Deg F 68 86 104 122 140 Ambient temperature Fig 3 Effect of temperature on battery life 120 110 100 90 80 i 70 60 50 40 30 20 10 0 Deg C 40 20 0 20 40 60 Deg F 40 4 32 68 104 140 Ambient Temperature Fig 4 Effect of temperature on Percent of available capacity 2009 capacity 18 LR 20 LR 20B BACKPACK ELECTROFISHER BATTERY MAINTENANCE amp DIAGNOSTIC EQUIPMENT Ld Mic p WWE TOT L MC 24 Maintenance Charger BAT 01 Battery Analysis Tool BC 24PS Charger Battery Under BAT 01 Battery Analysis Tool MC 24 MAINTENANCE CHARGER The Smith Root MC 24 Maintenance Charger sold separately 1s specifically designed for proper battery maintenance and storage Trickle charging optimizes battery shelf life by reducing cell deterioration Keeping batteries fully charged can greatly increase battery life The MC 24 eliminates the hassle of shuffling batteries from shelf to charger and keeps batteries properly charged and ready for service With the built in battery evaluation load test function and maximum charge indicators you can see the state of charge and condition of each battery and identify low charged and worn out batteries Charging batteries using the MC 24 takes between two and four days It is also an excellent
29. out in sequence as the charge current drops and the battery approaches full charge When the battery reaches an 80 level of recharge the red Charge LED will go off and the yellow 80 LED below it will come on After a further time interval the 80 LED will go off and the green Ready LED will come on The time interval for this final 20 of charge is automatically adjusted by the charger in proportion to the time taken to reach the 80 level 3 The length of time needed for recharging will depend on the size and depth of discharge of the battery A minimum of one hour is needed and full charging of a large battery may take up to 12 hours 4 IMPORTANT SAFETY NOTE When disconnecting the battery from the charger switch off or unplug the AC supply BC 24PS Batt Charger 04954 to the charger first This precaution will eliminate any risk of gas explosion due to arcing 1 5 www smith root com USER S MANUAL BATTERIES BATTERY CARE AND MAINTENANCE CONT STORAGE INSTRUCTIONS Fully charge batteries before placing in storage As these batteries will self discharge we recommend that they be recharged after 3 or 4 months of storage at 20 degrees centigrade More frequent charging is required at higher storage temperatures and less at lower temperatures 9 months at O degrees Batteries removed from storage should be recharged for a least 48 hours prior to placing back in service If batteries are stored on a ma
30. r and burrs that may cause injury or tear holes in protective clothing Check the insulation for damage Replace the cathode as necessary 7 Check the anode pole for cracks in the fiberglass and handle assembly Replace as necessary 8 Check the curl cord for cracks and abrasion Do not use a cracked pole or a pole with a damaged curl cord 9 Check your boots and high voltage gloves for holes Boots and gloves must be watertight and without any holes Repair or replace as necessary 10 If you are using chest waders you should use a wading belt 11 Checkall batteries for damage Never use a damaged battery as the gelled electrolyte in these batteries is a strong acid and can cause severe chemical burns and damage clothing and the electrofisher 12 Useonly dip nets with non conductive handles Never use an anode as a net as it is extremely dangerous to other members of the crew and can cause severe injury to any fish caught with it 13 Never electrofish alone 14 Never electrofish when you are tired 1 1 www smith root com SAFETY Electrofishing Safety Cont SAFETY DO S AND DON T S DO S 1 Always be sure that all personnel are clear of the electrodes before turning on the power 2 Know how to administer first aid treatment for electrical shock 3 Wear flotation devices 4 Have electrical circuits checked only by qualified technicians 5 Disconnect the power supply w
31. r to graphic on left Connect one lead of the ohmmeter to pin 1 of the small connector Connect the other lead of the meter to pin 2 of the small connector The meter should read infinite ohms 4 Press the operator switch down against the rubber handle of the pole The meter should read 0 ohms If the pole fails any of the tests above the pole needs to be replaced If the pole passes all of the tests above then the problem is in the electrofisher and it should be returned to the factory for repair USER S MANUAL ELECTRODES ELECTRODE POLE TESTING j Pin 1 Pin 2 Front view of Control Connector on end of Y cord CATHODE TESTING CATHODE TESTING 1 Set your multi meter to measure resistance and connect leads to the left and right pins of the connector on the end of the cathode cable The meter should display close to 0 ohms between the 2 pins 2 Move one of the leads to the bare metal cable Again the meter should display close to 0 ohms between the pin in the connector and the bare cable Flex the cable along its insulated length and watch the meter reading as you do Be careful to keep the ohmmeter securely connected while flexing the cable If the meter reading changes significantly or jumps the cable should be replaced Front view of Cathode Connector on end of Y cord 2009 20 LR 20 LR 20B BACKPACK ELECTROFISHER ELECTRODE POLE AND CATHODE TESTER ELECTRODE POLE amp CATHODE TE
32. s caused by contraction of the chest muscles When a current is above a certain level a person cannot let go of an electrically hot wire Currents above this level may not cause ventricular fibrillation but may be enough to cause contraction of the chest muscles If the current 1s not stopped or the victim is not removed from the point of electrical contact asphyxia will result Artificial respiration Or cardiopulmonary resuscitation may be necessary PREVENTING ELECTRICAL SHOCK Electricity needs to have a complete electrical circuit in order for current to flow The only way that you can get shocked is if you become the electrical conductor to complete the circuit The current flows from the cathode to the anode through the water The water is the electrical conductor If you touched both the anode and the cathode you would become an electrical conductor and complete the circuit path and get a severe electrical shock If you touch only one of the electrodes you would not complete the electrical circuit and not get shocked WARNING Touching any electrode is not recommended Unless all conductive objects you come into contact with are connected to the same electrode you will be shocked to find a current path that is not obvious e g the water or the boat Preventing electrical shock means preventing electrical current from entering and flowing through parts of the body The skin is a partial but variable barrier becaus
33. the battery will greatly reduce the cycles possible and a battery left in a discharged condition may be ruined For this reason batteries should never be allowed to remain in a discharged state Recharge as soon as possible after each use Service Life Batteries which have been properly maintained should last 3 to 5 years depending on ambient temperature depth of discharge D O D and number of cycles for Smith Root batteries to maintain at least 80 of original capacity they are rated 230 cycles for 100 D O D 470 cycles for 5096 D O D or 1100 cycles for 30 D O D Batteries which have reached this end of life condition may still be useful where shorter operating times are appropriate Shipping These batteries conform to the UN2800 classification as Batteries wet non spillable electric storage They conform to the International Air Transport Association I A T A Special Provision A67 classifying them as non dangerous goods and are therefore exempt from the subject regulations for dangerous goods and are acceptable for transport on both cargo and passenger aircraft Reference I A T A Dangerous Goods Regulations 35th Edition Jan 1 1994 Section 4 4 Special Provisions 17 www smith root com USER S MANUAL BATTERIES BATTERY CARE AND MAINTENANCE CONT BATTERY SPECIFICATIONS RATING Batteries are rated at the current which will reduce the voltage per cell to 1 67 volts in 20 hours The heavyweight
34. tor s hands unnecessarily close to the electrode when removing fish 2 The intensity of the electric field increases as the fish to electrode distance decreases Therefore the risk of injury to the fish is greatly increased with the use of an Anode ring net 3 They make the Anode ring more difficult to clean CLEANING AND MAINTENANCE The LR 20 enclosure and suspension system may both be cleaned with warm water and a mild soap solution Spray the solution on the area to be cleaned and then wipe with a soft cloth CAUTION Do not use solvents on the case of the LR 20 as they may cause permanent damage to the LR 20 EXTENDED MAINTENANCE PROGRAM The extended maintenance program is a service contract offered to customers who have purchased SRI electrofishing equipment directly from our factory It can be purchased for equipment that is past its standard one year warranty Older equipment is subject to eligibility parameters such as hours years in service Our Smith Root factory technicians will perform cleaning of internal component parts electronic repairs and calibration once 1 per year During this maintenance period upgrades to current specifications will be performed to factory standards The unit will be recertified and issued an SRI certification label All labor and materials will be included in the yearly inspection Contact Smith Root Inc for additional information 2009 22 LR 20 LR 20B BACKPACK ELECTROFISHER
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