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USER`S MANUAL - Smith-Root

1. ACK FRAME Main connecting point for the harness system Al components are mounted on the packframe BATTERY COMPARTMENT LATCH Three twist lock latches secure the battery cover to the main control box and packframe 10 CATHODE CABLE A molded strain relief allows the cathode cable to pass through slots on either side of the battery cover ANODE CABLE A molded strain relief allows the anode cable to pass through slots on either side of the battery cover 12 IMMERSION SENSOR This sensor will shut the unit down should the LR 24 be immersed in water 13 SERIAL NUMBER Unique number to identify the unit for service n 2 vovncmitioot eom OVERVIEW USER S MANUAL OVERVIEW DISPLAY PANEL KEY OVERVIEW The panel has 11 keys that perform a variety of functions The bright blue green characters can be clearly seen in most lighting situations but may require shading in direct sunlight LR 24 Key pad with fluorescent display A MENU KEY Displays the system menu options Press arrow up or down to scroll through options Press menu again to escape STORE SETUP KEY Allows the user to store the settings of the lectrofisher in one of ten storage locations C RECALL SETUP KEY Recalls one of ten factory default or user stored electrofisher settings D UP ARROW KEY Increases the selected setting Scrolls up through a menu Changes to the next status display E POWER LIMIT
2. Smith Roat continues to be the leader in effective safe and reliable technology for fisheries conservation Knowledgeable biologists have depended upon Smith Root equipment since 1964 LR 24 ELECTROFISHER Products for Fisheries Conservation pon INTRODUCTION The LR 24 Electrofisher OVERVIEW General Information SECTION 1 STATUS DISPLAY Input Output Waveform EEE Display Panel Volts iium Duty Cycle Born AT Enter Up Arrow Recall Setup Store Setup System Menus 1 9 Power Limit Pulse Types SECTION 3 BATTERY CONNECTORS ETC Battery Compartment Battery Connector Anode and Cathode Connectors Control Connector CONTENTS USER S MANUAL Emergency Shutdown Switch 19 Quick Release Packframe 19 Flashing Red Light 19 Audio Alarm 20 Anode Switch 20 Tilt Switch 21 Immersion Sensor u Anode Out of Water Output Voltage Detector Electronic Circuit Breaker 2 2 2 21 Battery Compartment interlock Switches Fusible Links Temperature Sensors Peak Current Overload Output IGBT Failure Average Current Overload 22 22 22 23 23 23 Inverter Overload 24 Low Battery Fault 24 Battery Current Too Low 24 SECTION 5 SETUP amp OPERATION Setup 25 27 Using Recalled Waveforms for Setup 28 Factory Default Stored Waveforms 29 Custom Setup Procedure 30 31
3. Vancouver WA 98686 USA 360 573 0202 Voice 360 573 2064 FAX info smith root com see d www smith root com ede ms
4. 1 Make sure the power switch on the top of the LR 24 is in the OFF position pressed DOWN 2 Attach the anode and cathode to their output connectors Attach the smaller connector on the anode cable to the control connector of the LR 24 Fig 5 1 Install the bat tery and attach the power cord of the LR 24 Place the strain reliefs of the anode and cathode cables in the slots on either side of the battery compartment Figs 5 2 and 5 3 Adjust the battery cover so that it is on the inside of the molded guides of the packframe The cover must be correctly placed before the LR 24 will operate Close the cover latches Figs 5 2 and 5 3 3 Put the LR 24 on Be sure to know the location of the j quick release buckles for the backpack and unlatch the i chest strap before entering or crossing the water refer ji to Appendix E Pack Adjustments on page 54 for further instructions Fig 5 2 4 Check with each crew member to be sure they know you are ready to turn on the power 5 Turn on the power Do not press the anode switch Check the operation of the tilt switch by bending forward until Continues on next page Fig 5 3 wernsnii oot cam as LR 24 BACKPACK ELECTROFISHER SECTION 5 SETUP AND OPERATION CONT YEPFRERRUR E EY Unit Tilted too far Return to upright position to clear System Henu 7 Run Quick Setup Fig 5 5 Quick Setup Place electrodes in vater and activate pole suitch Fig 5 6 Quick S
5. follow the instructions on the screen Figure 213 The user must press the Up arrow key to continue the test Pressing any other key will abort the test and return to the status display Figs 214 215 Followed in a few seconds by the screen in Figure 2 18 If the relays and regulation pass the test the following message will appear on the display indicating the first series of testing passed Fig 217 The next part of the test requires that the output of the LR 24 be connected to a test load or that the electrodes be in water This part of the test takes about 15 seconds to complete When it is finished the output of the LR 24 will automatically turn off If the LR 24 passes this part of the test this message will be displayed Fig 2 18 This information is displayed for as long as the pole switch is held down The use of a non standard test load or electrodes in water will probably yield different efficiency numbers wor teat USER S MANUAL SYSTEM MENU 8 RESTORING FACTORY DEFAULT SETTINGS Restore Factory Defaults restores the original factory set voltages and waveforms in the 10 waveform storage locations Fig 219 All the current settings will be changed back to the Factory Default Settings See System Nenu 373 Restore factory default sattinge Appendix D on page 55 for a list of Factory Default Fig 219 Settings This message will be displayed before the default settings WARNING All settings are
6. Burst of three pulses at 4Hz with 25 duty cycle THz cycle frequency 100 volts 400 watt power limit Secondary waveform Standard Pulse 30 Hz 25 duty cycle 100 volts 400 watt power limit wornsnii oot cam 53 LR 24 BACKPACK ELECTROFISHER APPENDIX E SUSPENSION SYSTEM SUSPENSION SYSTEM The LR 24 suspension system has a wide adjustment range to fit most people comfortably The standard suspension will fit 32 to 40 waists The suspension system can be adjusted for body length by following instructions in the section entitled Making Suspension System Adjustments on page 55 Adjustable Shoulder Yoke CORRECT FIT Corner of shoulder yoke is level with top of shoulder blade More weight is supported by the waist belt than the shoulder yoke eren simp houarne nonon N E IMPORTANT Disconnect chest strap before crossing or entering water QUICK RELEASES Waist Belt Make sure belt is tight yet comfortable while making adjustments to shoulder yoke USER S MANUAL APPENDIX F ADJUSTING THE LR 24 SUSPENSION SYSTEM CONT MAKING SUSPENSION SYSTEM ADJUSTMENTS 1 Lay the pack down with the shoulder straps facing up 2 The back padding is made in 2 sections which meet just above the waist belt At the point where they meet lift the bottom part of the upper section and separate the hook and loop fasteners 3 There are two small straps attached to the lower section of the back padding one on each s
7. Pulse Type Standard Pulse Frequency p 4n Pulse Width wornsniti oot cam 33 LR 24 BACKPACK ELECTROFISHER SECTION 5 SETUP AND OPERATION CON Fig 526 Fig 527 Voltage 180 5 Press the Volts key and use the Arrow keys to scroll to the desired voltage and then press the Enter key Fig 5 26 6 Press the Power Limit key and use the Arrow keys to scroll to the desired power limit and then press Enter Fig 5 27 7 Repeatedly press the Up arrow key until the Secondary Waveform parameters are displayed Repeat steps 2 through 6 for the Secondary Waveform 8 Begin electrofishing 9 Duty cycle and frequency can have a huge impact on taxis In general lower frequencies are safer for larger fish than higher frequencies If you are not getting any response from fish change the LR 24 settings according to adjust ments a b and c on page 27 USER S MANUAL STORING USER SELECTED SETTINGS Store Waveform i The LR 24 can store 10 different waveform settings This DC Output gives the user the capability of saving different settings that might work particularly well at different sampling sites This 180 Volts can simplify setting up the LR 24 when you return to that Fig 5 28 site later to sample again This reduces variability caused by slightly different setups used by different crews The LR 24 always starts up with the same settings as it had when it was last turned off The factory default wavef
8. The power is limited by lowering the output voltage or frequency which the user selects from the Limit Mode option under the Menu key The minimum output voltage is 50 volts If this lower voltage limit is reached and the power limit is still being exceeded the LR 24 will shutdown its output and an error message will be displayed This control does not affect the output unless the user set power limit is reached The power limit cannot be set higher than 400 watts average output power In Burst of Pulses mode if the power limit is reached and if the limit mode is set to frequency only the cycle frequency will be reduced The frequency of the pulses in the burst is not changed For an explanation of cycle and burst frequencies see Pulse Type below PULSE TYPE KEY Allows the user to enter the output waveform of the LR 24 Available waveforms are Direct Current Standard Pulse and Burst of Pulses The output pulse type can be changed by using the Up or Down Arrow keys Fig 2 24 When Direct Current is selected the output of the LR 24 is smooth Direct Current at the selected voltage and power limit settings Standard Pulse is a waveform that produces continuous output pulses of the selected voltage duty cycle frequency and power limit For example GOHz 25 duty cycle 300 volts and 100 watts average power limit would produce a 300 Volt pulse 4 2 milliseconds wide 25 duty cycle 60 times per second unless the power limit o
9. Turn off the electrofisher before making any connections or part replacements Release chest strap before entering the water Shut off power before entering or leaving the water Stop work immediately if you get water in waders or gloves Operate slowly and carefully to prevent slips and falls Always be sure that all crew members are clear of electrodes before turning power on and before energizing electrodes Do not operate an electrofisher if you have any prior heart ailments wear a pacemaker or are pregnant USER S MANUAL SECTION 7 ELECTROFISHING SAFETY CONT QUICK RELEASE SYSTEM It may be necessary in some circumstances to remove the electrofisher backpack quickly The LR 24 has 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 The following procedure illustrates how the quick release system is 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 strap 4 This will allow the pack to fall away from you very quickly Move away fram pack as it falls ANCAUTION the host stan of the pack before entering or crossing water If left latched this strap may prevent the user from quickly removing the LR 24 in the event of an emergency such as falling into deep water This should
10. constant current mode LEDs change to red v s Nominal Input Rating Nomini Charge current is at its maximum ES IMED CONSTANT MODE Maximum Output ower cow The charger is in constant voltage mode LEDs change Input connection 5 pin EC 320 to orange put cordset not Included Charge current is less than its maximum tery is non j e jec Ee ae ere The battery is normally 80 95 charged Dimensions 55 x335 x175 The charger stays in this mode until the charge current Weight i85x80x44mm decreases to charge termination leve Ee decreases to charge termination level FINAL MODE UBC 24 BATT CHARGER The battery is fully charged The LED changes to green Part Number 10167 Remove battery from charger USER S MANUAL SECTION 6 BATTERY CARE AND MAINTENANCE CONT 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 then removed from charger Charging Problems Some older batteries may not charge within 24 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 electrofish
11. duty cycle setups for use at any time Pack suspension system allows for maximum flexibility and comfort Precise control over the output helps reduce injuries to fish Power limit mode allows the user to set a maximum output power level that the LR 24 will not exceed A dual output mode that allows the user to set up and rapidly switch between two different waveforms and voltages 4 vovnmitioot om USER S MANUAL SEC N T STATUS DISPLAY When first turning on the LR 24 a screen will briefly appear displaying the model number software version and Smith Root Inc s web address The status display screen will automatically appear after a few seconds The LR 24 has 3 standard screens referred to as status screens that are displayed during operation Specifically they are The input status screen The output status screen The waveform screen 1 INPUT STATUS SCREEN A sample input status screen is shown in Figure 11 TTL The first line shows the shocking time in seconds The LR 24 Batt Life Emmmaaf keeps track of fractions of a second but only displays 1 Batt 25 9V 8 18 second resolution The second line shows battery condition Temp 74F 7eF HS in a fuel gauge fashion 24 0V or more and the fuel gauge shows full At approximately 20 5V the gauge shows empty Fl At 20 0V the LR 24 shuts off the output because of a low battery The third line is the battery meter It shows the battery voltag
12. 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 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 UBC 24 Battery Charger Fig 6 5 It tests all models lead acid and lithium of 24V backpack BAT 01 Battery Analysis Tool batteries 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 accurately test 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 UBC 24 and also the battery under test use provided adapter for lithium batteries The battery will begin to charge as soon as the charger is plugged in Do nat use an MC 24 Maintenance Charger for this test Fig 6 5 BAT O1 Batt
13. levels in the tank checked if the fish are held very long before being worked up and released Never elactrofish with unauthorized people standing on the bank Under Certain conditions the feld of the tlectrofisher can travel long distances Things to look for include sheet piling metal culverts buried pipes suction lines for irrigation etc wornsniioot eom 27 LR 24 BACKPACK ELECTROFISHER SECTION 5 SETUP AND OPERATION CONT Ean COLLE This key allows users to access the 10 factory default settings or settings that users have stored Since user selected settings are stored in the same location as th factory default settings the recall procedure is the sam See also Storing user selected settings page 35 Factory Default Waveforms Appendix D page 53 Recall Waveforn 1 Dt Output 180 Volts USING RECALLED WAVEFORMS FOR SETUP Refer to the procedures 1 through 5 in the SETUP SECTION PAGE 25 1 Press the Recall key and use the up and down arrow keys to scroll forward or backward through the stored list of setups The display will show one setup at a time Fig 5 9 When the end of the waveform list is reached the LR 24 will wrap around to the beginning of the list 2 When you find the desired waveform press the Enter key The factory default stored waveforms are listed below and in Appendix D page 53 3 You are ready to begin electrofishing 4 Observe the reactions
14. of the fish It may be necessary to adjust the settings Duty cycle and frequency can have huge impact on taxis In general lower frequencies are safer for fish than higher frequencies See adjustments a b and c on page 27 wor t eatcom 1 2 10 USER S MANUAL FACTORY DEFAULT STORED WAVEFORMS DC 100 volts 400 watt power limit Standard pulse 30 Hz 25 duty cycle 100 volts 400 watt power limit Standard pulse 60 Hz 25 duty cycle 100 volts 400 watt power limit Standard pulse 15 Hz 25 duty cycle 100 volts 400 watt power limit Standard pulse 90 Hz 25 duty cycle 100 volts 400 watt power limit Standard pulse 120 Hz 25 duty cycle 100 volts 400 watt power limit Burst of three pulses at 500Hz with 50 Duty cycle 15Hz cycle fre quency 100 volts 400 watt power limit Burst of three pulses at 500Hz with 50 Duty cycle 30Hz cycle frequency 100 volts 400 watt power limit Dual output mode waveform Primary waveform Burst of two pulses at 4Hz with 25 duty cycle 1Hz cycle frequency 100 volts 400 watt power limit Secondary waveform Standard Pulse 30 Hz 25 duty cycle 100 volts 400 watt power limit Dual output mode waveform Primary waveform Burst of three pulses at 4Hz with 25 duty cycle THz cycle frequency 100 volts 400 watt power limit Secondary waveform Standard Pulse 30 Hz 25 duty cycle 100 volts 400 watt power limit woith oot com LR 24 BACKPACK ELECTROFI
15. restored andi the user must press the Up arrow kay will be LOST to confirm restoration of t those settings Fig 2 20 Continue fes Pressing any other key will abort this operation and return to the status display SYSTEM MENU 9 EVENT HISTORY DIT 38 The LR 24 records all errors and unusual events that Display event occur during use This menu option allows a technician istam to review the status codes stored during field use of the LR 24 Fig 220 This history file is an ald to troubleshooting if the LR 24 develops a problem There is a table of error codes in Appendix B of this manual page SD To exit from this mode and return to the status screen press the Enter key cose Paz eteis Fig 2 22 Codes US Fig 221 Code U03 66815 wornsnih oot om 13 LR 24 BACKPACK ELECTROFISHER SECTION 2 DISPLAY PANEL CONT Power Linit E Fig 223 BB Power Limit Key Pulse Type Standard Pulse Fig 224 Bst SH amp 9 09 69 8 POWER LIMIT KEY The Power Limit key allows the user to pre set an output limit where desired for safety considerations When the Power Limit key is pressed the setting is displayed and can be changed by using the Arrow and Enter keys Fig 2 23 Pressing the Power Limit key again will abort this function and return you to the main status display Pressing another key will abort this function and move to the setup display of the key that was pressed
16. 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 wornsnii oot on 47 LR 24 BACKPACK ELECTROFISHER ELECTROFISHER OPERATION 1 Electrofish only as far as you can safely wade Some areas are unreachable with a backpack electrofisher 2 Touching an active electrode is not recommended even while wearing Lineman gloves and waders 3 Never electrofish with spectators on shore Electric fields can travel large distances through buried pipes metal culverts and metal sheet piling 4 If spectators show up during electrofishing stop the operation and go to explain to them what you are doing Explain the risks to them being there and ask them to please leave for their own safety If they refuse to leave stop electrofishing load the equipment and leave the area 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
17. so it is always easy to tell which waveform the LR 24 is producing The primary waveform is indicated by a high pitched 29KHz tone The LR 24 FI 523 indicates when the user changes to the secondary waveform by changing to a lower pitched 19KH2 tone Releasing the anode pole switch for more than one second and then pressing it again will cause the LR 24 to toggle back to the primary waveform The fellowing procedure will guide you through setting up Dual Output Mode 1 Press the Menu key and use the Arrow keys to scroll to the Dual Power Mode On Off option Press the Enter key Fig 522 das Pulse Width 2 Press the Pulse Type key and use the Arrow keys to scroll poca to the waveform type you want to use for the primary waveform then press the Enter key The available wave form types of the LR 24 are Direct Current non pulsed Standard pulse and Burst of pulses Fig 5 23 3 Press the Freq key and use the Arrow keys to scroll to the desired waveform frequency and then press the Enter key Fig 524 4 Press the Duty Cycle key and use the Arrow keys to scroll to the desired duty cycle and then press the Enter key Fig 5 25 Note that f Direct Current was selected as the pulse type neither frequency nor duty cycle can be selected for that waveform as these have no meaning for Direct Cur Fig 5 25 rent If burst of pulses was selected two frequencies and two duty cycles must be set Continues on next page
18. 0202 APPENDIX H MODEL 12 OR 15 SETTING CHART Use this chart to convert settings used with the Model 12 or 15 to settings on the LR 24 AR B p 4 z Example If the Mode Switches T on a Model 12 were set to H2 the corresponding settings for LR Series electrofisher would 5 sett e be SOHz Frequency at 5 Duty EN CNET o 0 USER S MANUAL APPENDI LR 24 ELECTRODE TESTING LR 24 ELECTRODE POLE TESTING 1 Connect an ohmmeter to the two pins labeled in the larger connector Fig 81 The meter should read O ohms 2 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 O ohms 3 Connect the leads of the ohmmeter to the pins of Front view of Control the small connector Fig 8 2 The meter should read Connector on end of Y cord infinite ohms 4 Press the operator switch down against the rubber handle of the pole The meter should read O 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 LR 24 and it should be returned to the factory for repair Fig 8 2 Front view of Cathode Connector on end of Y cord LR 24 CATHODE TESTING 1 Set the multi meter to measure resistance and conn
19. 90 degrees for the heat sink temperature The shutdown Syste Hera sis Enable Theraal Power foldback Fig 2 10 20 Tine 83145 Set 6 kz Now 48Hz Output 1 828 5 838 temperature for the air is 160 degrees and 200 degrees Flg 2il for the heat sink If either of the shut down temperatures is reached the LR 24 will shut down even if Thermal Power Limiting is enabled With Thermal Power Foldback enabled when either of the trip points is reached the LR 24 will begin to beep both audio alarms simultaneously and the status screen will look similar to that shown in Figure 211 This display says that the LR 24 has entered thermal power limiting The output frequency has been reduced by 20 The output frequency was set to 60Hz and has been reduced to 48Hz The average output current is 1 62 amps and the peak output current is 5 83 amps If the temperature continues to rise the LR 24 will continue to reduce the output in 20 steps to a maximum of 80 This status display can be seen as long as the pole switch is pressed When the pole switch is released the standard status screen will return This allows continued monitoring of battery condition or the temperature of the LR 24 As the LR 24 cools down the output is automatically increased back toward the original settings The LR 24 will not increase the output beyond the original settings woith oot com LR 24 BACKPACK ELECTROFISHER SEC Susten Menu 6 8 iseb
20. Burst of Pulses Waveform Dual Output Mode Storing Waveform Setting Specifications My Custom Waveforms LR 24 BACKPACK ELECTROFISHER CONTENTS Cont UBC 24 Charger y Appendix A How to Charge Batteries Hood OE Tern sis ppendix B Available Batteries LEM ever Codas Battery Tips amp Precautions ipei Cr Battery Rating Anode Ring Maintenance Battery Life Appendix D Battery Storage Factory Default Stored Waveforms Effects of Temperature Appendix E Maintenance Charger Suspension System amp Diagnostic Equipment Appendix F Suspension Adjustments SEC LECTROFISHING SAFETY Appendix 6 Safety Cleaning and Maintenance Appendix H Model 12 and 15 Conversion Chart 56 Appendix I Electrode Testing Appendix J Backpack Electrofishing Illustration 58 Appendix K Carry Case Arrangement Illustration 58 WARNING Battery posts terminals and related accessories contain lead compounds chemicals known to the state of California to cause cancer and reproductive harm Wash hands after handling Items manufactured by companies other than Smith Root carry the original manufacturer s warranty Please contact product manufacturer for return instructions Ki hereby noted that the hard copy O amp M manual provided with this productis current as of the date of sale and no further The Manufacturer erodically updates OEM manuals as verbiage settings oper
21. Electrode may be out ELECTRONIC CIRCUIT BREAKER or water The input of the LR 24 is protected by an electronic circuit breaker which shuts off all power to the LR 24 in the event of excessive battery drain The breaker trips at an input current of 27 amps Fig 5 4 wrnsniboot eom 21 LR 24 BACKPACK ELECTROFISHER Over Tenperature Let unit cao betore use If the LR 24 is working hard on hot days it may overheat and shut down If the air temperature in the box reaches 160F or if the heat sink reaches 200F an over temperature error message will be displayed and the output will be disabled until the LR 24 cools down When using any of the pulsed outputs the LR 24 can reduce the frequency of the output pulses automatically based on its internal temperature when using Thermal Power Foldback Mode This has the effect of reducing the power level of the LR 24 and therefore the heat being produced inside the system This can allow the LR 24 to continue to work instead of waiting for it to cool down again This power reduction does not begin until the LR 24 is near the point of thermal overload so under most conditions it does not affect the output at all If unpulsed DC is being used the LR 24 can reduce the output voltage f it is near thermal overload Again this can allow the LR 24 to continue working instead of waiting for it to cool down In both modes of operation as the LR 24 cools down the o
22. KEY Displays and allows the modification of the power limit setting F ENTERKEY Selects menu items or enters settings into the selected function and then returns to the main status display G PULSE TYPE KEY Displays and allows the modification of the pulse type setting H VOLTS KEY Displays and allows the modification of the voltage setting 1 FREQ KEY Displays and allows the modification of the output frequency setting J DUTY CYCLE KEY Displays the output duty cycle setting and pulse width in milliseconds K DOWN KEY Decreases the selected setting Scrolls down through a menu Changes to the previous status display See DISPLAY PANEL MENU KEY DESCRIPTIONS on page 5 for more information on sach key wvsith root cam 3 LR 24 BACKPACK ELECTROFISHER OVERVIEW SORT cam hat will increase The LR 24 has better output regulation and allows greater user control of the output than any electrofisher before We suggest that you try Quick Setup first You may find that you use less voltage and a lower frequency than with other electrofishers This should lower fish injury rates and has the added benefit of longer shocking time per battery charge In ali cases electrofishers should be set up by observing fish behavior and recovery times not by voltage or current measurements Here are some of the features of the LR 24 10 storage locations for different voltage frequency and
23. PIRATORY 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 ASPHYXIA Asphyxia is 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 is 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 PERSONAL PROTECTIVE EQUIPMENT First aid kit Non breathable chest waders or non breathable hip boots with non slip soles Lineman electrical gloves rated and tested at a minimum of 1 000 volts Check personal protective equipment for leaks and holes OPTIONAL Brimmed hat Polarized sunglasses Life jacket and or wading belt Raincoat CREW PREPARATION Designate a crew leader For safety reasons there should be a minimum of three person crews Never electrofish alone CREW LEADER RESPONSIBILITIES Designate 1 person to order power of the electrofisher to be turned on Clarify with the entire crew the location of the nearest hospital and evacuation route in case of an accident Make it clear that any member
24. SHER SECTION 5 SETUP AND OPERATION CON Pulse Type Standard Pulse Frequency ddz Fig 512 Duty Cycle 128 an Pulse widtn Fig 5 14 CUSTOM SETUP PROCEDURE USER SELECTED SETTINGS This procedure allows operators to select settings for electrofishing The proper procedure involves selecting the waveform or pulse type voltage frequency duty cycle and power limit See section on Burst of Pulses Waveforms page 32 if this is to be the selected pulse type Refer to the procedures 1 4 in the setup section page 25 1 When you turn on the LR 24 it recalls the waveform setting that was in use when the LR 24 was previously turned off Check the waveform setting by pressing the Up arrow until the waveform is displayed If you were previously using the LR 24 in Dual Output mode the displayed waveform is the primary waveform Pressing the Up arrow again will cause the secondary waveform to be displayed If Dual Output mode is not in use then pressing the Up arrow the second time will display the first status screen If the displayed waveform is nat the setting you wish to use continue with the next step otherwise begin electrofishing 2 Press the Pulse Type key and then use the Arrow keys to set the waveform you want to use Fig 510 If unsure set the pulse type to standard pulse Press the Enter key 3 Press the Volts key and use the Arrow keys to set the volt age you want to use Fig 5 11 If
25. SION SENSOR If the lower end of the LR 24 comes into contact with the water the output is automatically shut off and an error message is displayed Fig 4 6 This condition is reset by moving the LR 24 case out of contact with the water and then turning the power off and back on again Note that if the battery compartment has filled with water it must be drained and completely dried before resetting the LR 24 ANODE OUT OF WATI This feature disables the output of the LR 24 and displays an error message whenever the anode pole switch is depressed and less than 30 milliamps mA of current is flowing between the anode and cathode Fig 4 7 To restart the LR 24 place the electrade in the water and press the anode pole switch For working in very shallow water this feature can be turned off using System Menu 5 Anode Out of Water Disable see page 12 ERRORS Unit tilted too far Return to upright position to clear Fig 4 5 NOTE This function is reactivated automatically when TEUER power is turned off and back on Sanersion Uetested turn urit off and OUTPUT VOLTAGE DETECTOR dry betore use This circuit senses voltage between the anode and cathode of the LR 24 and activates the audio alarm and a flashing red light if the LR 24 is turned on Minimum detection voltage is 30 volts This will occur whenever 30 volts are present in the water regardless of whether the RON LR 24 is turned on or not Cutput Current Lou
26. at 25 watts average output power This is only a suggested starting point and any or all of the output settings may be changed by the user at any time Duty cycle and frequency can have a huge impact on taxis In general lower frequencies are safer for fish than higher frequencies If you are not getting any response from fish change the LR 24 settings as follows a Increase the voltage in 50 volt increments Stop increasing voltage when you begin getting a forced response twitch from the fish when pressing the anode pole switch b If fish are not showing taxis lower the voltage to the original level and increase the duty cycle by 5 press the Enter key and try again If neces sary repeat step a from above until you elicit taxis in the fish If the voltage is increased to maximum and taxis is still not achieved reduce the voltage and increase duty cycle by 5 again If no response after increasing duty cycle lower all settings and proceed to step c c Increase the frequency by SHz press the Enter key and try again If necessary go back to step a before increasing frequency again Observe the collected fish closely In general if it takes more than 5 seconds for a fish to recover it may have been shocked too much If it takes more than 15 seconds for a fish to recover it was definitely shocked too much reduce the frequency duty cycle and or output voltage of the LR 24 TAXIS AND TETANY There may be some
27. ational protocols ete ae revised and provides updated copies on the Manufacturer s web site End users should foutnely check the Manufacturers website fr te most Up to date manusi regarding their products iawwsmithevootcom suppar All Smit Root nc manufactured products are covered by a one year warranty redit amp Refund Policy Customers returning equipment n new condition wil be given a refund within five days from the date of ine etum retur authorization must accompany returna Valld equipment retums include but are not lied to ordering incorrect equipment funding deficits and defective equipment returned for reimbursement Al returns are subject oa restocking fee and applicable shipping charges The restocking fe i figured a 10 of the purchase pice but nat less than 2000 Customers receiving equipment In damaged condition willbe referred to the shipping company for Insurance 07288 User s Manual LR 24 RavOS 2013 Smith Root Inc Vancouver WA USA m warn sith oat am INTRODUCTION USER S MANUAL is the most advanced Electrofisher ever produced Its design incorporates many new safety features to help protect both operating personnel and fish Many features are refinements of conventions established in earlier SRI electrofishers and some are entirely new The user interface has been designed to make the LR 24 easy to use With the Quick Setup feature the LR 24 automatically sets output voltage frequency and duty c
28. behind blade This is the most The unit is unstable and shoulders Frame shouldbe comfortable and stable uncomfortable Frame shortened way to wear unit should be lengthened wwmsith root com 55 LR 24 BACKPACK ELECTROFISHER APPENDIX G CLEANING AND MAINTENANCE The LR 24 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 Rinse grit from the touch panel with a stream of water before wiping with a cloth to avoid scratching the display window CAUTION Do not use solvents on the case of the LR 24 as they may cause permanent damage to the LR 24 EXTENDED MAINTENANCE PROGRAM The extended maintenance program is a service contract offered to customers who have purchased SRI electrofishing equipment directly from our facility It can be purchased for equipment that is past its standard warranty Older equipment is subject to eligibility parameters such as hours years in service Our Smith Root facility 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 a SRI certification label All labor and materials will be included in the yearly inspection Contact Smith Root Inc for additional information 360 573
29. confusion between taxis and tetany Taxis is an induced swimming action The nerves have time to repolarize and the muscles have time to relax between output pulses of the electrofisher Tetany is locking up the muscles The fish is stiff and there may be some sight quivering in the fins While the fish may move toward the anode positive electrode this is not taxis The output of the electrofisher should be reduced Rolling fish over should be avoided When electrofishing With settings high enough to quickly knock fish out Injury rate is higher than it should be Ideally fish will swim into the net while following the anode Recovery time should be quick and the fish should be able to swim normally immediately upon being placed in the holding tank It should not take more than 5 seconds for a fish to recover after being placed in the holding tank If it takes 15 seconds or more for fish to recover after being placed in the tank then reduce the output settings of the electrofisher BEFORE ELECTROFISHING The most experlenced members of the electrofishing crew should be doing the netting They know what to expect what to look for and where to look The next most experienced member should be running the LR 24 looking for likely habitat The next most experienced member of the crew should be taking care of the recovery tank The tank should be kept out of the sun water temperature checked regularly and oxygen
30. d LED light Stage 2 Timed Constant Voltage Mode The charge is electronically controlled with a fixed voltage ceiling which prevents excess battery gas emission and over charging orange LED light Stage 3 Final Mode Battery is fully charged green LED light Full electronic protection is provided against short circuit and reverse battery connection CHARGING READ THESE INSTRUCTIONS BEFORE USING THE CHARGER The battery charger is only designed for indoor use and should not come into contact with water or dust In order to avoid overheating the charger should not be covered when it is in use Chargers filled with molding material are splash proof but must not be immersed in water The socket should be easily accessible If an operational error occurs the plug should be immediately removed from the socket The charger contains dangerous voltages and the cover should not be removed All service or maintenance work should be carried out by qualified personnel who can get assistance by contacting the manufacturer s agent A fuse protects the product against short circuiting and overloading The charger is designed for charging lead batteries For safety reasons individual battery types should have a minimum capacity Recommended battery capacity 6V 4 12Ah 12V 3 12Ah 24V 15 12Ah Contact the battery manufacturer for the specific battery Do not attempt to charge batteries that are not rechargeable smitnsootcem difficu
31. e av Fig 1 6 3 WAVEFORM SCREEN A sample waveform screen is shown in Figure 1 3 The first line will have Output Waveform unless dual output is turned on see System Menu 3 Dual Output on page 10 In this case the first line will indicate primary waveform or secondary waveform The second line describes the type of pulse There are three types of pulses Standard Pulse Direct Current and Burst of Pulses If Standard Pulse has been selected as the output waveform the screen will appear as in Figure L3 The third line shows the frequency Hz and duty cycle of the standard pulse The fourth line shows the presently selected output voltage If Direct Current has been selected as the output waveform the screen will appear as in Figure 1 4 The third line will indicate there is no pulse and the fourth line shows the presently selected output voltage If Burst of Pulses has been selected as the output waveform the screen will appear as in Figure 15 The second line will indicate the number of pulses selected in the burst The third line will indicate in parentheses the frequency Hz and duty cycle of the burst of pulses and the number on the right indicates the frequency Hz of which the burst of pulses occur The fourth line shows the currently selected output voltage VOLTS KEY When the Volts key is pressed the display shows the output voltage setting as in Figure 1 6 Pressing the Arrow keys allows
32. e and the battery current in amps The LR 24 overloads and shuts off its output if the battery current reaches 20 0A or more The fourth line displays the alr temperature in the box and the temperature of the heat sink HS See Safety Features under Temperature Sensors on page 22 for a description of operating temperatures parameters Refer to System Menu 4 on page TI for an explanation of Thermal Power Foldback feature 2 OUTPUT STATUS SCREEN On Time 0001294 sec A sample output status screen is shown in Figure 1 2 Power 160 1248Up meh Volts 2381 250p e first line shows the shocking time in seconds The Extend second line shows the average and peak power in parentheses that the LR 24 s putting into the water This Fig 1 2 peak reading is calculated by multiplying together the peak output voltage and peak output current The average power is calculated by multiplying the peak power by the duty cycle The third line shows the average output voltage and the peak output voltage in parentheses The fourth line shows the average output current in amps and the peak output current in amps in parentheses wvesith roat on 5 LR 24 BACKPACK ELECTROFISHER SECTION 1 STATUS DISPLAY CON Gutput Wavefora Standard Pulse 30Hz 12x 338 Volts Fig 1 3 Gutput Waveform DC Output Not pulsed 158 Volts Output Waveform Burst of 3 Pulses Sook 503 30Hz 158 Volts ESE Volts Key Valtag
33. econds off at 40 C ambient 400VA output Operational Altitude to 3000 meters Overload Protection Excessive peak current average current or over temperature will shutdown the electrofisher before damage can occur Resets automatically when condition is corrected Output Indicator Audio tone for 30 VDC and greater with increasing pulse rate for autput power Flashing red light Status display for output voltage both average and peak output current both average and peak and output power both average and peak Output On Timer 0 999 999 seconds resettable via menu Operating Temperature Range O Cto40 C Storage Temperature Range I C to SO C Humidity Range Operating or Nonoperating 10 to 90 noncondensing Construction Sealed molded polyethylene and ABS case NEMA 4 IP 65 Safety Devices Tilt switch Forward 50 degrees backward 40 degrees sideways 45 degrees all 10 degrees Immersion sensor Anode out of water sensor Anode pole switch Emergency stop switch Battery compartment interlock Battery fusible link Quick release pack Lead Acid 7Ah 24V sealed 12 Ib 5 45 kg Lead Acid 12h 24V sealed 18 Ib 8 ka Lithium Iron Phosphate 9 6Ah 24V sealed 5 3 Ib 2 4 kg Weight 26 3 lbs 12 kg with lithium battery Dimensions H 275 in 69 9 cm W 14 5 in 36 9 cm D 145 in 36 9 cm Specifications subject to change
34. ect leads to the pins of the connector on the end of the cathode cable The meter should display close to O ohms between the 2 pins 2 Move one of the leads to the bare metal cable Again the meter should display close to O 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 woith oot cam d An easy to use plug in tester is available from Smith Root Itallows one person to perform easily the above tests with an audible alarm and fault indicator light Electrode Cathode Pole Teste oans 57 LR 24 BACKPACK ELECTROFISHER APPENDIX JACKPACK ELECTROFISHING ILLUSTRATION APPENDIX K CARRY CASE ARRANGEMENT APPENDIX J An illustration of a typical LR 24 electrofishing setup with proper safety gloves non breathable waders and cord strain reliefs properly installed on either side of the battery compartment Note This is for illustration purposes only and no one should ever electrofish alone APPENDIX K When transporting or storing the LR 24 Electrofisher a Pelican carry case sold separately offers properly sized slots for accessories and provides extra protection from potential damage We SMITH ROOT INC 14014 NE Salmon Creek Ave
35. equency is 400Hz whereas the group frequency is 40Hz Duty Cycle is 25 woith oot com 47 LR 24 BACKPACK ELECTROFISHER SECTION 3 BATTERY COMPARTMENT AND CONNECTIONS Fig 31 BATTERY COMPARTMENT Opening the battery compartment allows the user to install or change the battery or connect the anode cathode and control circuit connectors Fig 3 1 Remove the battery compartment cover by flipping the handles on the three cam lock latches out and turning them counter clockwise Make sure the latch on the bottom of the cover is free then pull out on the two side latches and lift the battery compartment cover away from the LR 24 When replacing the battery compartment cover adjust it so that it is on the inside of the molded guides of the packframe The cover must be correctly placed before the LR 24 will operate Close the cover latches BATTERY CONNECTOR The battery connector located inside the battery compartment is a rectangular red and black plastic connector on the end of the input power cable Fig 3 2 It mates with an Identical connector on the LR 24 battery packs This connector is color coded and polarized to prevent accidental reverse connections of the battery For lithium batteries the provided adapter must be used Fig 33 ANODE AND CATHODE CONNECTORS The anode and cathode connectors are black plastic circular 2 pin connectors located on the bulkhead between the battery compartme
36. er If the battery is not taking a charge it will not operate the electrofisher for very long Sometimes by cycling the battery a few times it will start taking a charge again 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 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 and every three months if unused 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 0 D 470 cycles for 50 DOD 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 Lead Acid batteries A amp B above conform to the UN2800 classification as Batteries wet non spilable electric storage They conform to the International Air Transport Association LATA Special Provision A67 classifying them as non dan
37. ery Analysis MC 24 Maintenance Charger BAT OI Battery Analysis Too oss 08041 44 vovnmitioot om USER S MANUAL 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 respect for it and you can lose your life Electrical equipment used in a moist field environment is always subject to deterioration that could lead to dangerous electrical shack Field equipment is also subjected to vibration and impact during transporting and while in operation Often equipment shared by different crews does not receive proper maintenance or a complete checkout Follow the safety guidelines and use good common sense to handle unforeseen circumstances PROPER EQUIPMENT 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 MAKE SURE THAT Electrofisher gives audible sound when voltage is present at anode Quick release system is functioning properly Tilt switch is functioning properly turns power off Dipnets with non conductive handles are used in conjunction wi
38. etup Complete Release pole switch Fig 57 Quick Setup Complete Output set to 2901 the tilt switch activates about 55 degrees and the tilt message appears on the display Fig 5 4 Straighten up and the status display should return If the tilt message does not appear do not use the LR 24 send it to Smith Roat for repair 6 Place a dampened cloth on the immersion sensor contacts located on the lower corner of the LR 24 under the bat tery compartment The display should show the immer sion warning When the cloth is removed and the power is turned off and back on the display should return to the status screen If the immersion message does not appear when touched with a wet cloth do not use the LR 24 send it to Smith Root Inc for repair 7 Press the Menu key 8 Next press the Up key until the Quick Setup option of the menu appears Fig 5 5 9 Press Enter 10 Make sure the cathode cable is behind you and then place the anode ring in the water in front of you Fig 5 6 T Press the switch on the anode pole and hold the flapper down until the audio tone stops Fig 5 7 12 The LR 24 is now set up Figs 5 7 and 5 8 13 The Quick Setup mode provides conservative settings that may need to be adjusted for optimal results See steps a b and c on page 27 for changes to consider wor t eatcom USER S MANUAL RECOMMENDED ADJUSTMENTS Quick Setup adjusts the LR 24 to produce 30 Hz 12 duty cycle
39. f 100 watts average power is reached If the power limit is reached the LR 24 will automatically reduce the output voltage or frequency whichever one the user has selected to maintain 100 watts average output power See pages 30 32 for more information about setting the Pulse Type wor t eatcom USER S MANUAL SECTION 2 DISPLAY PANEL CON BURST OF PULSES Burst of Pulses is a complex waveform wherein a lower frequency waveform is used to turn on and off a higher frequency waveform The lower frequency is called the cycle frequency The higher frequency is called the burst frequency For example a burst of 3 pulses at 400 Hz with a 12 duty cycle and a 40 Hz cycle frequency would produce the following output A pulse would occur every 2 5 milliseconds 400 Hz and each pulse would be 0 3 milliseconds wide 12 of the 400 Hz After the first 3 pulses of the 400 Hz waveform the next 7 pulses of this waveform would be skipped Then there would be another 3 pulses of the 400 Hz 12 duty cycle waveform For this waveform the bursts of pulses occur every 25 milliseconds 40 Hz This pattern would repeat as long as the switch on the anode pole was held down For this example the LR 24 could not output more than 10 pulses of the 400 Hz burst because 400 Hz is only 10 times the cycle frequency of 40 Hz As a second example if the LR 24 were set to produce a burst of 5 pulses at 250 Hz and 10 duty cycle at a 15 Hz cycle
40. frequency the waveform would have these characteristics A pulse would occur every 4 milliseconds 250 Hz each pulse would be 0 4 milliseconds wide 10 of the 250 Hz After 5 pulses of the 250 Hz waveform the next 11 pulses of this waveform would be skipped Then there would be another 5 pulses of the 250 Hz 10 duty cycle waveform For this waveform the bursts of pulses occur every 67 milliseconds 15 Hz This pattern would repeat as long as the switch on the anode pole was held down For this example the LR 24 could not put out more than 16 pulses of the 250 Hz burst because 250 Hz is only 16 67 times the cycle frequency of 15 Hz For more information on setting the burst of pulses see pages 16 17 and 32 wesamibonotcam LR 24 BACKPACK ELECTROFISHER SECTION 2 DISPLAY PANEL CONT Dutput Pulse Type Burst of Pulses Fig 225 Voltage 150V Fig 226 Frequency oh Fig 2 27 Pulses Burst Fig 228 Step 2 of 3 Fig 229 If you select more burst pulses than possible at the selected cycle frequency the low frequency the LR 24 will automatically increase the burst frequency the high frequency to allow the selected number of pulses to be output The LR 24 will not allow users to choose a burst frequency that is too low to produce the number of pulses that have been selected at the cycle frequency selected The following example demonstrates how to set up a Burst of Pulses 1 P
41. gerous goods and are therefore exempt from the subject regulations for dangerous goods and are acceptable for transport on both cargo and passenger aircraft Lithium batteries C above are only acceptable on ground transport and must have adapter D above removed wosith oot com SRI BATTERIES A aavan gt Ne Lithium Battery Adapter MODELS A 24V Ah Lond Aci Battery 00082 PD Lithium Battery Adapter 1078 LR 24 BACKPACK ELECTROFISHER SECTION 6 BATTERY CARE AND MAINTENANCE CONT CE BATTERY TIPS amp PRECAUTIONS INSTRUCTIONS 1 Keep the battery charged The most frequent cause Fully charge batteries before of battery failure is not recharging after each use placing in storage As these De diee 2 Extreme temperatures kill batteries Avoid storage werecommendthattheybe in exceedingly warm or cold areas Recommended recharged after 3 monthsof operating temperatures are between 5 and 35 Storage degrees C maximum 15 to 50 degrees C The Batteries removed from energy available on a given discharge cycle Storage should be recharged decreases at low temperatures and increases prior to placing back in at higher than normal temperatures Increased Service temperatures increase the gradual processes of When not in use store the very slow corrosion which normally occur in all charger indoors na cooldry lead acid batteries place 3 Avoid heavy vibrations or shocks which ma
42. hest strap of the pack before entering or crossing water If left latched this strap may prevent the user from quickly removing the LR 24 in the event of an emergency such as falling into deep water FLASHING RED LIGHT Bright long life LED lamps flash whenever the LR 24 is turned on and 30 volts or more are present between the anode and cathode Fig 4 3 lt a woith oot com 9 LR 24 BACKPACK ELECTROFISHER SECTION 4 SAFETY FEATURES DESCRIPTIONS CONT pos 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 when the electrofisher is not in use Don s 1 Don t electrofish alone 2 Don t continue to electrofish if boots or gloves get wet inside 3 Don t operate an electrofisher with any prior heart allments 4 Don t electrofish when tired AUDIO ALARM The audio output alarm indicates 4 different LR 24 operating conditions and is composed of two tone emitting units one high pitched and the other low pitched 1 Presence of high voltage in the water Whenever the anode and cathode are in the water and more than 30 volts are present there will be an audible tone emitted by the alarm 2 Average power output level The Audio Alarms emit
43. ide which secure it to the frame Reach behind the hard plastic frame and pull on the loops to separate these straps from the frame 4 Fold down the bottom section of the back padding 5 Either tighten or loosen the exposed yoke adjustment strap to move the shoulder yoke up or down You may need to also loosen the upper and lower shoulder yoke straps in order to move the shoulder yoke 6 Once the shoulder yoke is adjusted to the desired height tighten the yoke adjustment strap to prevent movement of the shoulder yoke 7 Fold up the bottom section of back padding 8 Tuck the hook and loops under the upper section fitting the upper and lower sections snuggly together and press to secure the hook and loop together 9 Tuck the loops on each side of the lower section behind the hard plastic frame pressing to secure the hook and loop together ADJUSTMENT STEPS With all straps loosened begin fitting by securing the waist belt snuggly so that approximately 75 of the weight rests comfortably on the hips Next tighten the lower shoulder yoke straps to distribute the remaining weight comfortably on the shoulders Finally tighten the upper shoulder yoke straps to draw the mainframe towards the shoulder blades INCORRECT CORRECT INCORRECT Shoulder yoke is level with Corner of shoulder yoke is Shoulder yoke is lower or above top of shoulders level with top of shoulder than the top of shoulders Note slack in strap
44. le Anode Qut Of Vater test Fig 212 system Menu s Run Extended System Test Fig 215 Dangerous Voltages uill be output during test Continue Yes Fig 214 Testing Henory Fig 215 Testing Henory Check 8086 Testing Inverter Fig 216 PISE Test Passed Connect Electrodes to Test load Close Pole Switch Fig 217 WeTests Passedeit Batt 23 8 El In 109 30 Out 79 80 Efficiency 72 6 Fig 23 N 2 DISPLAY PANEL CONT SYSTEM MENU 6 ANODE OUT OF WATER DISABLE Allows the temporary override of the Anode Out of Water feature Fig 212 This option allows the LR 24 to be used in very shallow water where it may not be possible to keep the anode in the water all of the time This option Is only active while the LR 24 is powered on The mode resets to Enabled on the next power up Please see page 21 for more information SYSTEM MENU 7 EXTENDED SYSTEM TEST This is a diagnostic test mode for test and service technicians It requires the use of a standardized test load connected to the anode and cathode During the test the LR 24 checks its program memory for errors then it checks the operation of the output safety relay the output switch IGBT the accuracy of the five internal voltage ranges estimates the charge in the battery and measures the efficiency of the high voltage converter This test takes approximately 20 seconds to run To run the test
45. long as the temperature is above safe limits After the LR 24 has cooled the error message is cleared and full operation is automatically restored The Thermal Foldback Mode System Menu 4 can help decrease the chance of shutdown due to excessive temperatures See page 11 wmamthnateom USER S MANUAL FAULT CONDITIONS PEAK CURRENT OVERLOAD If the peak output current exceeds 40 amps the output is disabled and an error message is displayed Fig 4 9 This is usually caused by a short circuit between the anode and cathode The LR 24 can be reset by releasing the switch on the anode pole and pressing it again OUTPUT IGBT FAILURE If there is an Output Switch IGBT Failure the LR 24 s output is shut off and an error message is displayed Fig 410 The criteria for an Output Switch Fault is that output voltage has been detected when there should be none For example if the anode pole switch is not activated there should be no output from the LR 24 If however output is detected then an Output Switch Fault exists and the LR 24 s output will be disabled The LR 24 must then be sent back to Smith Root for repair Do not attempt to use the LR 24 if this message appears as a safety hazard may exist and further use may cause more damage to the LR 24 AVERAGE CURRENT OVERLOAD The input and output currents of the LR 24 are constantly monitored while in use If these currents become excessive the LR 24 will shutdown its outpu
46. lt to charge The charge current will fall quickly as if the battery had received a full charge Even though a battery in this condition should be CAUTION Old sulphated batteries usually have a reduced capacity and are A replaced It wil retain a small charge woniniti oot cam 39 LR 24 BACKPACK ELECTROFISHER SECTION 6 BATTERY CARE AND MAINTENANCE CONT HOW TO CHARGE BATTERIES 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 3 Verify that the polarity is correct and connect the charger cable Red to red black to black use provided adapter for lithium batteries 4 Connect the charger to the socket 5 When charging is finished do not leave battery on charger for an extended period of time Disconnect the charger from the socket before you disconnect the charger from the battery WARNING Explosive gases can arise while charging Avoid sparks and open flames Verify that there is adequate ventilation while charging The charger should not be used in the vicinity of flammable gases Avoid chargers with plastic casing coming into contact with oils grease etc as most types of plastic can be broken down by chemicals and solvents LITHIUM BATTERY ADAPTER Wurde ase chwai LEDS INDICATE FOLLOWING CHARGE STATUS Charge num batteries CONSTANT CURRENT MODE SPECIFICATIONS The charger is in
47. nt and the electronics compartment Fig 3 4 Access to these connectors is gained by removing the battery compartment cover The connectors are identical and allow the use of a trailing cathode cable or a cathode pole for greater control over placement of the output electric field Both pins in these connectors are live when the LR 24 is on These connectors are polarized 1 4 turn locking connectors CONTROL CONNECTOR The control connector is a smaller 4 pin version of the anode and cathode connectors Fig 3 4 It is also polarized and the smaller size prevents incorrect connections The LR 24 utilizes a low voltage control circuit for added safety USER S MANUAL SECTION 4 SAFETY FEATURES EMERGENCY SHUTDOWN SWITCH The large red mushroom switch located on the top of the LR 24 is the Emergency Shutdown Switch which is also the main on off switch for the LR 24 Fig 4 1 To turn the power on the user must rotate the switch 90 degrees in the direction of the arrows clockwise Since the switch knob must be rotated it helps to prevent accidentally powering up the LR 24 Pushing the red mushroom knob V down until it latches will immediately turn the LR 24 off QUICK RELEASE PACKFRAME The LR 24 has an integrated quick release packframe Fig 4 2 Just press the latch tabs on the waist belt and shoulder straps and the entire LR 24 falls away See page 49 for more information CAUTION Always unlatch the c
48. nts Pressing the Duty Cycle key a second time will abort this function and return you to the Status Screen Pressing another function key other than the Arrow keys will abort this function and move you to the setup display for the function key that was pressed Duty cycle is the percentage of time the output pulse is on over a one second period For example if the selected waveform is 60 Hz with 25 duty cycle an output pulse will occur 60 times per second once each 16 7 mSec with a pulse width of 0 25 X 16 7 mSec 4 2 mSec and a gap between pulses of 0 75 X 16 7mSec 12 5mSec wosith oot om REN Frequency dis Is Pulse Width 12 ans Pulse Width Fig 22 LR 24 BACKPACK ELECTROFISHER SECTION 2 DISPLAY PANEL CONT DOWN ARROW KEY Decreases the selected setting or scrolls down through menu or scrolls to the next status display ENTER KEY ME Selects menu items or enters settings into the selected function and then returns you to the main status display iiia Changes to the settings take place only after the Enter key is pressed UP ARROW KEY Increases the selected setting or scrolls up through a menu or changes to the next status display Up Enter and Down Keys RECALL SETUP KEY Recalls one of ten factory default or user stored electrofisher setups Use the Arrow keys to scroll through Recall Uavefora the setups and press the Enter key to select the displayed DC Output setu
49. nts total shocking time since the LR 24 was built p pom pm Cleared By vor Laaa Tied Too Far opinas tag rem ans Pol swe uoz mmario Detected Lat hs been immenedin Power nor ve Fan dtecad on oped Avatiage sens Automate sue 2 al doe to athar ed Se TET E Ra Sel Se MEER ee es a Ei cu EUER sa Taw Battery Curent a Power OF E Tov ou orange Yatage yer as endi Power VOR sov Gut ange atiage regulator are sendin Fewer non a Tavor Rana Vote falar sendin Pawar ON EE E TORY Ow OF Range attage regulator ale sendin Power ON E EXIT Vote falar sends Power VO EE E Safety Runs Faire The cute ey way open Power or EI III he output switch pan end Power ON EIL EI TST HV Breakdown Tue certae Power GOH ETES The up ant ha hort Power ON EXIT Memory Ten Flare 12 meroprcesro har detected Power OO EL Pine olden ston neam WA wrnsnii oot eom 51 LR 24 BACKPACK ELECTROFISHER APPENDIX C ANODE RING MAINTENANCE An Anode Ring with pronounced oxide coating An Anode Ring with netting attached never a good Id Make sure the Anode ring is kept clean Anode rings 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
50. o set the output voltage then press the Enter key Fig 5 20 All three steps must be completed for any changes to be effected 5 Press the Power Limit key and use the Arrow keys to set the power limit then press the Enter key Fig 5 21 6 Begin electrofishing NOTE Duty cycle and frequency can have a huge impact on taxis In general lower frequencies are safer for larger fish than higher frequencies If you are not getting any response from fish change the LR 24 settings according to adjustments a b and c on page 27 won t eatcom USER S MANUAL DUAL OUTPUT MODE In this mode of operation the user sets up two waveforms o ac ve firs rm enter Systen Menu 3 8 and two output voltages The first waveform entered DNE is called the primary waveform and is the one activated when you first press the anode pole switch The secondary waveform is entered second and is activated from the primary waveform by releasing and then pressing the Fig 522 anode pole switch again in less than one second The pulse type output voltage frequency and duty cycle for both the primary and secondary waveforms are set in a straight forward manner using the front panel keys This feature quickly allows the user to change the output of the LR 24 Users may wish to do this if for example they are working with juveniles and you suddenly come across an adult The primary waveform is indicated by a higher tone than the secondary waveform
51. of the crew can order power off CREW RESPONSIBILITIES All crew members should be trained in fundamentals of electricity and safety As electrofishing is inherently dangerous All crew should be alert and attentive take breaks as necessary EMERGENCY PLANNING In case of an accident Turn off power to the electrofisher Evaluate situation and take appropriate action USER S MANUAL 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 The current flows from the cathode to the anode through the water The water is the electrical conductor If someone touched both the anode and the cathode they would become an electrical conductor and complete the circuit path and get a severe electrical shock Au pis tan o ON ptr Effects on humans of an electrical pulse passed through the chest area WARNING Touching any electrode is never recommended while backpack electrofishing Preventing electrical shock means preventing electrical current from entering and flowing through parts of the body Rubber lineman s gloves rated to at least 000V 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 pack is plugged in A
52. only be done in an emergency situation The backpack may be damaged from contact with the ground and or water when using the quick release system wonsnitioot cam as LR 24 BACKPACK ELECTROFISHER SECTION 8 APPENDIX A 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 Conductivity A measure of the ease with which electricity can flow through a substance In electrofishing the substance of interest is water Conductivity is measured in mS micro Siemens or millionths of a Siemen Distilled water has a conductivity of O mS while brackish water has a conductivity of 10 000 mS or more Current Generic term that refers to the flow of electricity in a circuit Unit of measure is the Amp Duty Cycle Expresses the ratio in of on time for an electrical signal such as an LR 24 output For example if an LR 24 output is ON for 25 seconds and OFF for 075 seconds the duty cycle is 0 25 0 25 0 75 x 100 25 Electrofisher An apparatus that applies electricity to a body of water for the purpose of stunning fish Frequency The rate at which an electrical signal changes over time The unit of measure is the Her
53. orms can be restored to the storage locations by selecting the Restore Factory Defaults option under the menu key When a setup is stored in a storage location the setup that was there previously is overwritten and lost To save a setup follow the procedure below 1 Press the Store Setup key 2 Use the Arrow keys to scroll to a storage location you want to overwrite Fig 5 28 3 Press the Enter key The pulse type frequency duty cycle voltage and power limit are all stored for instant recall and later use wornsnih oot om 35 LR 24 BACKPACK ELECTROFISHER Conductivity Range 10 2150 microsiemens per centimeter Input Voltage 24 VDC Nominal Input Current 20 Amps Max Input Monitoring Battery voltage and current plus easy to read fuel gauge type display for battery voltage Output Voltage 50 to 990 Volts in 5 volt steps Output Current 4 Amps continuous at 100 Volts 40 Amps peak max Output Waveforms Smooth DC Pulsed DC Burst of Pulses DC Output Frequency THz to 120 Hz in 1 Hz steps Burst of Pulses frequencies up to 1000H2 Output Waveform Duty Cycle 1 to 99 in 1 steps Waveform Storage Save up to 10 different waveforms for quick easy recall of voltage frequency duty cycle and pulse type Output Power 400 watts maximum continuo 19 600 watts peak Operational Duty Cycle 40 Max 182 seconds on 288 s
54. p These setups can be used for different work areas or streams Pressing the Recall Setup key a second 180 Volts time will abort this function and return you to the main status display Pressing another function key will abort Fig 23 this function and move you to the setup display for the function key that was pressed See page 28 for more details on recalled waveforms Store Vavefora STORE SETUP KEY LACS The Store Setup key allows the user to store the settings 108 Volts of the electrofisher in one of ten storage locations When a setting is displayed that you wish to store press the vu Store Setup key When the Store Setup key is pressed the contents of the first storage location are displayed Scroll through the storage locations using the Arrow keys This will show what is already stored in that location When the Enter key is pressed the setup in the currently displayed storage area is overwritten and the new voltage frequency duty cycle and waveform settings are stored inthis area This can decrease sample variations due to setup differences These settings can be stored for up to 10 years without power connected to the electrofisher Pressing the Store Setup key a second time will abort this function and return you to the Status Screen Pressing another key other than the Arrow keys will abort this function and move you to the setup display for the function key that was pressed The factory default settings for the 10
55. pulsed tones to indicate average power output level Watts Audio Tone in secs 010939 pulse per second 100101999 2 pulses per second 200192999 5 pulses per second 300 to 400 4 pulses per second 3 Power Limit mode When the LR 24 output power reaches the user set power limit the audio tone alternates between the high and low pitch at the rates specified above 4 Dual Output mode In this mode the LR 24 can oper ate with a primary or secondary user specified voltage waveform combination The selection between the two combinations is accomplished by rapidly double pressing the anode pole switch The primary voltage waveform is assigned to the high pitched tone and the secondary voltage waveform is assigned to the low pitched tone ANODE SWITCH A magnetic reed switch is used for the anode pole switch This switch has direct shutdown control of the high voltage output safety relay inside the LR 24 Releasing the flapper for the switch turns the switch off Fig 4 4 m USER S MANUAL TLT SWITCH The tilt switch automatically turns off the output of the LR 24 if the LR 24 is tipped too far from vertical in any direction The maximum forward tilt is 50 degrees backward tilt is 40 degrees and side tilt is 45 degrees all from vertical If tilted beyond these limits an error message is displayed This condition is reset by moving to a more vertical position and releasing and pressing the anode pole switch IMMER
56. quencies If you are not getting any response from fish change the LR 24 settings according to adjustments a b and c on page 27 wornsnih oot om Bt LR 24 BACKPACK ELECTROFISHER SECTION 5 SETUP AND OPERATION CON Dutput Pulse Type Burst of Pulses Fig 515 Frequency oz Pulses Burst 5 Step 1 of 3 Burst Frequency 400H2 Step 2 of 3 Burst Duty 251 36 Pulse Width Step 3 of 3 Fig 519 Fig 5 20 Power Linit 400i Fig 521 BURST OF PULSES WAVEFORMS The burst of pulses waveform is a composite of two waveforms A lower frequency waveform the cycle frequency used to turn on and off a higher frequency waveform the burst frequency The following procedure will guide you through setting up a gated burst waveform on the LR 24 1 Press the Pulse Type key so that the Output Pulse Type screen appears 2 Press the Down Arrow key until Burst of Pulses appears on the display Fig 5 15 then press the Enter key 3 Press the Freq key and use the Arrow keys to set the desired cycle frequency Fig 5 16 Then press the Enter key 4 Press the Duty Cycle key and use the Arrow keys to set the desired number of pulses in the burst Fig 5 17 Press the Enter key Use the Arrow keys to set the burst frequency Fig 5 18 Press the Enter key Use the Arrow keys to set the duty cycle of the pulse waveform then press the Enter key Fig 5 19 Press the Volts key and use the Arrow keys t
57. ress the Pulse Type key on the front of the LR 24 Use the Arrow keys to select Burst of Pulses for the new pulse type The display will look like Figure 2 25 2 Press the Enter key 3 Press the Volts key and use the Arrow keys to set the voltage Fig 2 26 then press the Enter key 4 Press the Freq key and use the Arrow keys to set the cycle frequency Fig 2 27 then press the Enter key 5 Press the Duty Cycle key and use the Arrow keys to set the number of pulses Fig 2 28 then press the Enter key 6 Use the Arrow keys to set the burst frequency Fig 2 29 then press the Enter key 7 Use the Arrow keys to set the duty cycle of the burst pulses Fig 2 30 then press the Enter key 8 You can now use the Arrow keys to review the settings for the burst of pulses Fig 2 31 won teat USER S MANUAL SECTION 2 DISPLAY PANEL CONT 1 Group ofS Pukes uu EI Group of 5 Pukes Volts 400Hz L 3n Pulse Width dum E OSSEC na Time Burst of 5 Pulses 400Hz 50 40Hz Fig 231 Figure 2 32 shows an example waveform The lone pulse on the right side of the figure is the first pulse of the next group of 5 pulses The height of each pulse is 150 volts The groups of 5 pulses repeat at a 40Hz rate Each one of the individual pulses is on for 25 of the time from the start of one pulse to the start of the next pulse in the group Therefore settings are 150 volts for 5 pulses burst The individual burst fr
58. ressing the anode pole switch in less than 1second The primary waveform and voltage the one entered first is the one activated when you press the anode pole switch the first time The secondary waveform and voltage is activated by releasing and pressing the anode pole switch in less than 1 second This feature allows the user to change voltages and waveforms quickly This can help reduce injuries to adult fish when collecting young of the year or when using a low frequency waveform to get catfish to move off the bottom and then quickly changing to a higher frequency waveform to collect them Any combination of pulse types voltages frequencies duty cycles and power limits may be used for the two outputs in dual output mode To see or make changes to either the primary or secondary waveform from the main status waveform screen press the Up arrow key until the display shows the primary waveform Make changes using the Volts Freq and Duty Cycle keys Pressing the Up arrow key one more time will display the secondary waveform and you may make changes to it in the same way the primary waveform was changed To change back to the primary waveform release the pole switch for more than 1 second and then press it again See pages 33 34 for more information on Dual Output SYSTEM MENU 4 POWER LIMIT MODE This menu item allows the user to select the method for controlling the maximum average output power of the LR 24 Fig 2 9 If the user set po
59. storage locations can be restored at any time using the Menu key and selecting option 7 See page 35 for more information on storing selected settings 8 wnsthoateam USER S MANUAL SECTION 2 DISPLAY PANEL CON SYSTEM MENU KEY 1 9 Allows the user to access additional functions of the LR 24 Additional functions include reset the timer use the quick setup access dual output mode restore factory defaults for waveforms set the power limit mode run extended system diagnostics and examine the event history Only one item is displayed at a time You can scroll through the menu using the Arrow keys Pressing the Enter key will execute the command and return you to the main status display or display a sub menu if necessary for that item Pressing the Menu key a second time will abort this function and return you to the main status display Pressing another function key will abort this function and move you to the setup display for the function key that was pressed SYSTEM MENU 1 TIME RESET The reset timer option allows the user to reset the on time seconds counter back to zero Press enter to reset the timer Press any other key to exit without resetting the timer Fig 2 5 SYSTEM MENU 2 QUICK SETUP If the Quick Setup option is selected the LR 24 automatically sets the waveform duty cycle and output voltage to suit the present water conductivity It will use a default waveform of 30Hz 1296 duty cycle and adjust the ou
60. t to prevent damage to it s circuits Releasing the pole Switch and selecting a lower output voltage or lower duty cycle waveform should clear this fault Fig 4 11 VEFHERR RS EY Peak Anps Overload Renove Short Circuit betore proceeding RERO Output IGBT Failure Turn off unit and contact Snitn Root VERHERRORE Y Inverter Overload Reduce Output to 200 Volts Enter Fig 4a oe FR RSR es pce E xu a ceo avg es an et ere Ed peu E eR prece ie ue option is explained in greater Don wornsniioot eom 23 LR 24 BACKPACK ELECTROFISHER SECTION 4 SAFETY FEATURES DESCRIPTIONS CONT TIPERROR E EY Inverter Overload Reduce Qutput to 268 Volts enter Fig 412 FER ERROREN ENS kon Battery Voltage Replace battery with a fully charged one Fig 413 OUEN Lou Battery Current Turn Unit off and contact Snith Root INVERTER OVERLOAD If the Output Voltage is set too high for the water conductivity and the electrode spacing the LR 24 will turn off its output and display an error message Fig 412 The error message will suggest a more appropriate voltage for the present conditions If this error is caused by a mistake for example temporarily having the Anode and Cathode too close together acknowledge the error message by releasing the pole switch and pressing any key on the keypad If the the error message shows up again in a short time acknowledge the message and reduce se
61. th properly rated gt 1000V lineman gloves Electrodes are free from corrosion clean if necessary Anode does not have netting attached to ring a common ill advised modification see Appendix C on page 52 Cathode is free of wear and burrs and its cable insulation is undamaged Poles are free of cracks in fiberglass handle Power Supply check all batteries for damage leakage disconnect power supply before transporting and when not in use Always purchase electrofishing equipment from an authorized dealer wornsniioot eom as LR 24 BACKPACK ELECTROFISHER WHAT IS 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 can cause death by one of three 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 heart rhythm Cardiopulmonary resuscitation may help to keep a victim alive until they can be defibrilated RES
62. the user to change the output voltage Pressing the Enter key enters the settings and returns to the status screen The range of this control is from 50 volts to 990 volts in 5 volt steps Pressing the Volt key second time will abort this function and return to the status screen Pressing another function key other than the Arrow keys will abort this function and move to the setup display for the key that was pressed wo teat USER S MANUAL SECTION 2 DISPLAY PANE DISPLAY PANEL KEY DESCRIPTIONS When the Freq key is pressed the display shows the output frequency setting Fig 2 1 Pressing the Arrow keys allows the user to change the output frequency Pressing the Enter key selects the settings and returns you to the status screen The range of this control is from 1Hz to 120Hz in THz increments Pressing Freq a second time will abort this function and return to the status screen Pressing another function key other than the Arrow keys will abort this function and move you to the setup display for the key that was pressed DUTY CYCLE KEY When the Duty Cycle key is pressed the display shows the output duty cycle setting and pulse width in milliseconds Pressing the Arrow keys allows the user to change the output duty cycle Fig 2 2 Pressing the Enter key selects the settings and returns you to the Status Screen The range of this control is from 1 or O1 milliseconds whichever is larger to 99 in 1 increme
63. tput voltage as necessary to reach 25 watts average power output While the LR 24 sets its output up for 25 watts average output power the power limit is still set at 400 watts average power The user may change any of the settings determined by the LR 24 after the setup cycle is complete The anode and cathode should be in the water in a normal operating position when the Quick Setup cycle is started Figs 2 6 and 2 7 For more information on Quick Setup please see pages 25 27 NOTE As the electrodes move through the water the power applied to the water changes It may increase well above the initial 25 watt level or it may decrease well below that level The output voltage determined by the Quick Setup routine will be maintained until it is changed by the User or the power limit is reached or an overload occurs woith oot om System enu Reset Tiner Fig 25 System Henu Run Quick Setup Fig 2 6 QU Place Electrodes in water and activate pole suitch Fig 27 LR 24 BACKPACK ELECTROFISHER SECTION 2 DISPLAY PANEL CONT Systen Henu 3 3 Enable Qual Output Fig 28 en Wen Limit Hode Vol tage Change to Frequency Fig 2 9 SYSTEM MENU 3 DUAL OUTPUT Dual output on off allows the user to turn dual output mode on ar off Fig 2 8 Dual output mode allows the user to set up and switch between two completely independent sets of waveforms and voltages by simply releasing and p
64. ttings to the suggested voltage before proceeding This message occurs when the output voltage drops more than 30 below the voltage the user has set on the LR 24 This occurs when the water conductivity or electrode spacing or both are such that more power is being required from the LR 24 than it can supply Note the average and peak power readings on the display While the average power may be quite low the peak power will be far above the 400 watts the LR 24 can supply on a continuous basis LOW BATTERY FAULT When the battery is less than 20V the LR 24 will shut down its output and display the Low Battery message Fig 413 Turn off the power and replace the battery with one fully charged to clear this fault BATTERY CURRENT TOO LOW If the input current measuring circuit does not measure any current this error message will appear and the power to the LR 24 will have to be turned off and back on to clear the message Fig 4 14 This test is included to detect problems in the input current sensing circuit If this error message appears again the LR 24 will have to be sent to SRI for repairs wor t eatcom USER S MANUAL Make sure the electrode ring is clean and shiny A cloudy dull gray electrode ring will reduce catch per unit effort and will increase the fish injury rate see page 52 Initial setup of voltage frequency duty cycle and waveform should be done outside of the sample area BASIC SETUP OF THE LR 24
65. tz One Hertz is equal to one change cycle per second and is abbreviated Hz For example if an LR 24 is producing 60 pulses per second the frequency would be 60 Hz Hertz The unit of measure for frequency See Frequency IP Acronym for Ingress Protection Various IP standards exist that specify the ability of an enclosure to keep out contaminants such as dust and water IP65 applies to the LR 24 enclosure and signifies that it is dust proof and will protect from a water jet spray in all directions but is not suitable for immersion mA Milliamp One thousandth of an Amp see AMP mSec Milisecond One thousandth of a second NEMA Acronym for National Electrical Manufacturers Association NEMA sets contamination protection standards that apply to the LR 24 enclosure Operational Duty Cycle Expresses the ratio in percentage of shocking time to battery power on time Volt The unit of measure expressing the pressure behind an electrical current Analogous to water pressure pushing water through a pipe Volt Amp Unit of measure of electrical power equivalent to the Watt Abbreviated VA Watt Unit of measure of electrical power 1 Watt 1Amp IVolt Abbreviated W 50 vovnmitioot am USER S MANUAL APPEND r 24 EVENT CODES The following are the event codes that the LR 24 logs in its internal event history Each entry contains a code followed by the hardware time when the event happened This time represe
66. utput is increased back toward the original settings When enabled and the temperature of the LR 24 reaches the trip point CONTINUED ON NEXT PAGE BATTERY COMPARTMENT INTERLOCK SWITCHES The cover of the battery compartment contains an interlock mechanism A that automatically turns off power to the LR 24 if the cover is opened When replacing the battery compartment cover adjust it so that it is on the inside of the molded guides B of the pack frame The cover must be correctly placed before the LR 24 will operate RIGHT Detail showing relative locations of interlock witch inside control boc not visible and magnet inside of lid LEFT Detall showing molded guides on pack frame Lid must be aligned correctly and latched for unit to operate FUSIBLE LINKS The battery pack of the LR 24 incorporates a fusible link to protect the batteries from excessively high currents In the event this fusible link blows out it must be replaced with the same size and type as the original link in order to continue to provide protection for the battery pack and its wiring WARNING Replacement of this link by anyone other than Smith Root Inc will void the warranty of the entire electrofishing system TEMPERATURE SENSORS There are internal temperature sensors which can shut the LR 24 down if excessive temperatures are detected If the LR 24 is shut down due to high temperature an error message is displayed for as
67. wer limit is reached the LR 24 will automatically decrease the output voltage or frequency as selected by the user to maintain the output power at that limit If the output power drops below the limit the LR 24 will automatically increase the voltage or frequency back to the user set value won t eat com USER S MANUAL SECTION 2 DISPLAY PANEL CON SYSTEM MENU 5 THERMAL POWER FOLDBACK MODE This menu option allows the user to turn Thermal Power Limiting on or off Fig 210 On hot days when the LR 24 is putting out 200 watts or more it may eventually overheat and shutdown to prevent possible damage to the electronics Thermal Power Limiting allows the LR 24 to better control the amount of internal heat being produced and in many cases can prevent thermal shutdown This feature allows the LR 24 to continue to function in hot environments where it would otherwise shut down When this option is turned on the LR 24 will automatically reduce its output frequency if one of the pulsed outputs has been selected or it will reduce its output voltage if Direct Current output has been selected The LR 24 reduces the output by 20 for every 2 degrees Fahrenheit above the trip point up to a maximum of 80 reduction The LR 24 has two thermal sensors inside one monitors the air temperature inside the electronics cover and the other monitors the temperature of the heat sink The trip points are 150 degrees for the air temperature and 1
68. with fine steel wool Resist the temptation to put a net on Anode rings Nets have the following very undesirable characteristics 1 Nets present a safety hazard since it can place the operator 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 Nets make the Anode ring more difficult to clean wor teat USER S MANUAL 1 DC 100 volts 400 watt power limit 2 Standard pulse 30 Hz 2596 duty cycle 100 volts 400 watt power limit 3 Standard pulse 60 Hz 25 duty cycle 100 volts 400 watt power limit 4 Standard pulse 15 Hz 25 duty cycle 100 volts 400 watt power limit 5 Standard pulse 90 Hz 25 duty cycle 100 volts 400 watt power limit 6 Standard pulse 120 Hz 25 duty cycle 100 volts 400 watt power limit 7 Burst of three pulses at SOOHz with 50 Duty cycle 15Hz cycle frequency 100 volts 400 watt power limit 8 Burst of three pulses at 500Hz with 50 Duty cycle 30Hz cycle frequency 100 volts 400 watt power limit 9 Dual output mode waveform Primary waveform Burst of two pulses at 4Hz with 25 duty cycle 1Hz cycle frequency 100 volts 400 watt power limit Secondary waveform Standard Pulse 30 Hz 25 duty cycle 100 volts 400 watt power limit 10 Dual output mode waveform Primary waveform
69. without notice wnr srir root com USER S MANUAL SECTION 5 CUSTOM STORED WAVEFORMS MY CUSTOM STORED WAVEFORMS Please use this page to record any custom waveform setups For DC there are no entries in the Frequency or Duty Cycle columns For standard waveforms there is one entry in each column For burst waveforms there are two entries in the Frequency and Duty Cycle columns For dual waveforms record two entries in the same storage location one for the Primary waveform and one for the Secondary waveform If it becomes necessary to send the Electrofisher in for repair these settings may be lost and would need to be re entered in the system puerum Duty Cycle TAE oms Voltage paid Burst No Pulse Type DC Location Burst Cycle Pulses Standard Burst 1 10 wrnsniboot cam 37 USER S MANUAL SECTION 6 BATTERY CARE AND MAINTENANCE The Universal Battery Charger UBC 24 is designed to charge lead acid and lithium batteries for the LR 24 LR 20 Series and earlier Smith Root 24V models Electrofisher Systems The UBC 24 is a charger tallored for maintenance free batteries as well as other types of lead acid batteries The UBC 24 has a fully automatic three stage charge sequence with an electronically timed routine and a desulfation mode Stage 1 Constant Current Mode The charger starts with maximum current until the battery reaches a preset voltage re
70. y cause RD ARE internal damage Foam packing is cheap insurance CLEANING OF CHARGER 4 Avoid contact with oils or solvents which may attack Very little maintenance is the battery case ABS plastic resin Clean with soap required other then protecting and water oniy the charger from damage and iire 5 Do not crush incinerate or dismantle the battery The electrolyte contains sulfuric acid which can sies ic ea s cause serious damage to eyes and skin Dispose of 2 Clean case and cordswitha old batteries at a battery recycler slightly damp cloth 3 Examine cords for damage periodically and replace if necessary with manufacturer approved parts 6 Do not leave battery on charger for extended periods of time when battery reaches a full charge a vovnmitioot eom USER S MANUAL BATTERY RATING Batteries are rated at the current which will reduce the voltage per cell to 1 67 volts in 20 hours The heavyweight battery has a 12 amp hour rating However its life at 100 watt continuous discharge would be only 120 minutes As the discharge current is increased the efficiency and relative capacity decreases Fig 6 1 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 b
71. y extreme temperatures BATTERY STORAGE Batteries stored at room temperature will self discharge at 3 to 6 per month Storage temperature above 20 C 68 F should be avoided Shelf life can be increased by storing in climate controlled environment 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 In cold weather the shocking time will be less and the battery will have less capacity Figs 6 3 amp 6 4 witha com Life Load Capacity 20h osoa 120Ah Jor _105A_ _105Ah Sw 1954 97a Im 720A 72Ah Somi 12008 Goan J5min 2000A soan Fig 6 1 Relative capacity of 12Ah deep cycle battery Fig 6 2 Discharge curves for 12h and 7Ah batteries Fig 6 3 Effect of temperature on battery life on capacity LR 24 BACKPACK ELECTROFISHER SECTION 6 BATTERY MAINTENANCE amp DIAGNOSTIC EQUIPMENT MC 24 MAINTENANCE CHARGER The Smith Root MC 24 Maintenance Charger sold separately is specifically designed for lead acid battery maintenance and storage not intended for use with lithium batteries Trickle charging optimizes battery shelf life by reducing cell deterioration Keeping batteries fully charged can greatly increase battery life The MC 24
72. ycle An immersion sensor automatically turns the output off if the bottom of the packframe comes into contact with water The anode out of water detector automatically turns off the output if the anode ring is raised out of the water while the output is on Taking the time to familiarize yourself with these features will go a long way towards learning how to use the LR 24 in the most efficient manner ATTENTION Before getting started electrofishing make sure you become acquainted with the safety features of the LR 24 as shown on page 19 and the section on safe electrofishing practices and techniques starting on page 45 as well as informa emergency quick release on page 49 wwmsnih root com 1 LR 24 BACKPACK ELECTROFISHER LR 24 CONTROLS AND FEATURES Take the time to familiarize yourself with the LR 24 s features before beginning electrofishing 1 EMERGENCY SHUTDOWN SWITCH The main on off switch for the LR 24 The switch must be rotated 90 degrees clockwise to turn on the unit Simply pushing down will turn it of 2 KEYPAD Allows the display and modification of many control parameters of the LR 24 3 MENU DISPLAY Displays settings and status of LR 24 FLASHING RED LIGHT Flashes to indicate that the output is on BATTERY COMPARTMENT COVER Covers battery and connectors Must be properly in place and latched for unit to function 7 AUDIO ALARMS LEFT RIGHT Sounds to indicate that the unit is on
73. you are unsure of what voltage to use set the voltage to 100V 4 Press the Enter key 5 Press the Freq key and use the Arrow keys to set the frequency you want to use Fig 5 12 If you are unsure what frequency to use set the frequency at 30Hz Press the Enter key 6 Press the Duty Cycle key and use the Arrow keys to set the duty cycle percentage you want to use Fig 5 13 If you are unsure set the duty cycle to 12 Press the Enter key 7 Press the Power Limit key and use the arrow keys to set the maximum average power you want to put into the water Fig 5 14 If you are unsure what value to use set the power limit to 400 watts Press the Enter key worn t eatcom USER S MANUAL 8 Place the anode ring and cathode cable approximately 12 inches 30 cm apart in ankle deep water 9 Press the anode pole switch and listen to the audio alarm If it is beeping on and off 1 time per second release the anode pole switch and increase the output voltage 50 volts and press the Enter key Press the anode pole switch again and listen to the tone If the audio alarm is beep ing on and off two or more times per second release the anode pole switch and begin electrofishing If not repeat this step until the audio alarm begins beeping on and off faster than one time per second 10 Begin electrofishing NOTE Duty cycle and frequency can have a huge impact on taxis In general lower frequencies are safer for fish than higher fre

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