Smith-Root GPP 2.5 User Manual Download Page 27

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GPP ELECTROFISHER

www.smith-root.com

REFERENCES

 

The following are books, research papers, and other references on various aspects of electrofishing. The 
ideas and findings presented in them form the basis for much of the current practice in electrofishing.

ELECTROFISHING REFERENCE & TRAINING MATERIALS

1. Bryan R. Cowdell and Richard 

A. Valdez, 1994 “Effects of 
Pulsed DC Electrofishing on 
Adult Roundtail Chub from the 
Colorado River in Colorado,” 
North American Journal of 
Fisheries Management. Vol. 14

2.  I. G. Cowx and P. Lamarque, 

1990, “Fishing With 
Electricity—Applications 
in Freshwater Fisheries 
Management,” Fishing News 
Books, Blackwell Scientific 
Publications Ltd. lSBN 
0-85238-167-0

3.  L. G. Cowx, 1990 

“Developments in 
Electrofishing,” Fishing News 
Books, Blackwell Scientific 
Publications Ltd. lSBN 
0-85238-166-2

4. N.G. Sharber and S.W. 

Carothers, 1988 “Influence 
of Electrofishing Pulse 
Shape on Spinal Injuries in 
Adult Rainbow Trout,” North 
American Journal of Fisheries 
Management. 8: 117-122

5. Michael A. Bozek and Frank 

J. Rahel, 1991 “Comparison 
of Streamside  Visual Counts 
to Electrofishing Estimates 
of Colorado River Cutthroat 
Trout Fry and Adults,” North 
American Journal of Fisheries 
Management. Vol. 11

6. D. W. Novotny and G. R. 

Priegel, 1971 “A Guideline 
for Portable Direct Current 
Electrofishing Systems,” 
Technical Bulletin No. 5l, 
Department of Natural 
Resources, Madison, Wisconsin

7.  D. E. Snyder and S. A. Johnson, 

1991 “Indexed Bibliography 
of Electrofishing Literature,” 
Larval Fish Laboratory, 
Colorado State University, Fort 
Collins, Colorado.

8. M. Burridge and G. Goodchild, 

1988 “A Bibliography of 
Electrofishing,” Ministry of 
Natural Resources, Fisheries 
Branch, Queen’s Park, Toronto, 
Ontario, Canada. 

9. Alec G. Maule and Matthew 

G. Mesa, 1994 “Efficacy of 
Electrofishing to Assess 
Plasma Cortisol Concentration 
in Juvenile Chinook Salmon 
passing Hydroelectric Dams 
on the Columbia River,” North 
American Journal of Fisheries 
Management. Vol. 14

10. N.G. Sharber, S.W. Carothers, 

J.P. Sharber, J.C. DeVos, 
D.A. House, 1994 “Reducing 
Electrofishing-Induced Injury 
of Rainbow Trout,” North 
American Journal of Fisheries 
Management. 14

11. Jeffery C. Barnet and Gary D. 

Grossman, 1988 “Effects of 
Direct Current Electrofishing 
on the Mottled Sculpin,” North 
American Journal of Fisheries 
Management. Vol. 8

INTRODUCTION TO ELECTROFISHING

Summary of Contents for GPP 2.5

Page 1: ...07290 14 GPP Shore winco USER S GUIDE G P P M O D E L S 2 5 5 0 7 5 9 0 P O R TA B L E E L E C T R O F I S H E R S W KO H L E R H O N DA G E N E R ATO R S...

Page 2: ...ngine Anti Vibration Mounting 14 Generator Anti Vibration Mounting 14 SAFETY Contents Electrofishing Safety Principles 17 Safety 17 Electrofishing Safety 18 Planning For Safety 19 Backpack Safety 19 B...

Page 3: ...20 1 5 0 GPP Generator 4666 1 Output Cable 3415 1 Single Foot Switch w 15 ft Cable Plug 3309 2 Electrofisher Certification 5465 7 5 GPP 1 7 5 GPP Control Box 3421 1 7 5 GPP Generator 4667 1 Single Foo...

Page 4: ...t complete line of generator powered electrofishers ever offered Ranging from 1 5 to 9kW Smith Root manufactures electrofishers to handle all fresh or brackish water conductivities A complete electrof...

Page 5: ...tion of the insulation and may result in short circuits DIRT Install the unit in a clean location Abrasive materials such as dust sand or lint cause excessive wear to both engine parts and generator p...

Page 6: ...n directly from the generator eliminating the need for a transformer or voltage doubler The generator has a self excited revolving field This rotor connects directly to the engine crankshaft with a ta...

Page 7: ...AGE INDICATOR Red indicator lamp shows when voltage is present on output power terminals 5 MODE SWITCH Selects the type of output pulses AC DC or OFF 7 5 only Caution The position of this switch shoul...

Page 8: ...cy 0 Duty Cycle 120 170V Range 1097 Time Sec T HIGH CURRENT WARNING Switch to Low Setting Or Reduce Power H ET nc ZERO CROSS TIMING ERROR Contact Smith Root Inc for Repair Creek Ave WA 98686 www smith...

Page 9: ...le value will follow OPERATING PROCEDURE Before operating the power supply put on safety glasses and ear protectors Remove wristwatch rings and any other jewelry Do not operate the power supply while...

Page 10: ...15 CPS 7 5 CPS 120 170 High Current Warning 50 0 30 0 18 0 10 8 6 5 High Current Error 62 5 37 5 22 5 13 5 8 1 240 340 High Current Warning 25 0 15 0 9 0 5 4 3 3 High Current Error 31 1 18 8 11 3 6 8...

Page 11: ...and reset gap to 030 every 100 hours of operation 4 FUEL Every 250 hours replace the in line fuel filter or clean the screen and bowl 5 REMOVE DUST AND DEBRIS DEPOSITS from cylinder head and cylinder...

Page 12: ...2 Check engine speed with tachometer 3 Be sure the load is not too large reduce if necessary 4 Check for short circuit in line using an ohmmeter 5 Test diodes with ohmmeter to see if they are shorted...

Page 13: ...0 120 Hz 7 5 15 30 60 120 Hz 7 5 15 30 60 120 Hz Output Current Metering AC DC 0 8 amp AC DC 0 25 amp AC DC 0 199 amp DC 0 199 amp High voltage Output Indicator Panel Lamp Audio Tone Panel Lamp Audio...

Page 14: ...ousing Cover Binding posts LINE DESCRIPTION MODEL 04489 Stator 2 5 04649 Stator 5 0 04491 Stator 7 5 06231 Stator 9 0 04652 Rotor 2 5 04081 Rotor 5 0 02261 Rotor 7 5 9 0 02188 Brush Holder ALL 02227 B...

Page 15: ...crews then twist tight F A N ROTOR FAN WASHER FAN ATTACHMENT FAN INSTALLATION KIT ENGINE ANTI VIBRATION MOUNTING Rubber Engine Mount Kit line 04083 MISC PARTS GENERATOR ANTI VIBRATION MOUNTING All Mod...

Page 16: ...SHER www smith root com Since 1964 the leader in effective safe and reliable products for fisheries conservation Knowledgeable field biologists depend upon Smith Root equipment ELECTROFISHING SAFETY P...

Page 17: ...CTROFISHING SAFETY PRINCIPLES SAFETY Electrofishing Safety 18 Backpack Safety 19 Boat Safety 19 Do s Don ts 19 ELECTROFISHING PRINCIPLES Introduction to Electrofishing 20 Types of Current 22 Electrode...

Page 18: ...o members of the crew should be qualified to administer cardiopulmonary resuscitation As oppor tu nities arise all crew members should attend a course in basic life support training ELECTRICAL SHOCK I...

Page 19: ...s is poor and most falls often occur when operators are hurrying BOAT SAFETY 1 Ground the generator to the boat hull 2 Be sure that all the metal parts on the boat are bonded to each other electricall...

Page 20: ...ows through its body Electrode Water Electrical Field Voltage Source Electrode Figure 1 The basic electrofishing circuit 0 1 2 3 4 5 6 7 8 9 10 Volts 2V 0 1 2 3 4 5 6 7 8 9 10 Volts 8V b Fish more con...

Page 21: ...stun large fish in the interface between fresh and salt water For example Striped Bass can be stunned for taking brood stock Theoretically high conductivity could be dealt with by using smaller elect...

Page 22: ...current PULSED DIRECT CURRENT Even greater anode attraction is possible with pulsed direct current Pulsed direct current is made by interrupting steady DC with an electronically controlled switch The...

Page 23: ...closely spaced ring electrodes and the voltage gradient between them Note that the current density and voltage gradient are highest near the electrodes The dimensions of the electrodes are very import...

Page 24: ...2 0 4 0 6 0 8 1 0 1 2 volts 1r 2r 3r 4r 5r 200 100 66 50 40 33 200 100 66 50 40 33 1r 2r 3r 4r 5r 6r 7r 8r 9r 10r 28 25 22 20 18 100 44 16 10 7 134 4 volts Distance from electrode centers meters 10cm...

Page 25: ...shing boats use the boat hull as the cathode and the boom electrodes as the anode This is perfectly safe as long as you never come in contact with the anode and complete the electrical circuit The Nat...

Page 26: ...collections are for food habitat study stunned prey are not swept downstream and consumed by predators Fish that manage to escape are often captured a short distance downstream Closing a stream with s...

Page 27: ...eamside Visual Counts to Electrofishing Estimates of Colorado River Cutthroat Trout Fry and Adults North American Journal of Fisheries Management Vol 11 6 D W Novotny and G R Priegel 1971 A Guideline...

Page 28: ...models 29 Test for Continuity High Voltage AC Output 30 Check connections brushes exciter rectifier 31 Check Rotor Windings 32 Check Stator Windings 33 Test GPP Control Box 34 Test GPP Control Box 35...

Page 29: ...e Fig 1 1 They should read approx 14 5 Volts 60Hz 2 5 AND 5 0 GPP ONLY Check the 12 Volts AC on the output connector pairs 5 6 See Fig 1 2 V 5 6 1 2 3 4 5 6 7 IMPORTANT High voltages are present when...

Page 30: ...LTAGE AC OUTPUT Fig 2 1 2 5 5 0 GPP Fig 2 2 7 5 GPP Fig 2 3 9 0 GPP PROBLEM NO OUTPUT FROM GPP ELECTROFISHER CONT If the Voltages are LOW or absent go to procedure 3 If the Voltages are OK go to proce...

Page 31: ...non metalic abrasive pad such as 3 M Scotch Brite See Fig 3 3 Disconnect wires from rectifier Check 3 pin rectifier with ohmmeter in diode testing position The rectifier should only conduct one way be...

Page 32: ...through the Brushes Brushes are accessible via the brush end caps See Fig 4 2 Resistance should read as follows 24 ohms 2 5 GPP 32 ohms 5 0 GPP 36 ohms 7 5 and 9 0 GPP If resistance varies significan...

Page 33: ...to ground open connection See Fig 5 4 Replace Stator if out of specifications Figure 5 2 Figure 5 1 5 0 7 5 9 0 0 4 Ohms 1 2 Ohms 2 5 GPP Model 5 0 7 5 9 0 2 5 2 0 4 0 2 0 1 7 1 7 3 4 GPP Model 66 55...

Page 34: ...s seen from end 5 Amp Fast Blow Fuse Fig 6 4 PROCEDURE 6 TEST GPP CONTROL BOX Smith Root Inc Generator Powered Pulsator A B C WARNING Keep all personnel clear of the Test Load while the generator is r...

Page 35: ...tch the Voltage Range while the output is ON Retest settings in the high range NOTE If output current is absent return the control box to Smith Root Smith Root Inc Generator Powered Pulsator 2012 GPP...

Page 36: ...tor 12 Volt Battery Facing Stator end with cover removed Inside Brush holder Outside Brush holder AC AC Neg PROCEDURE 8 FLASHING THE ROTOR FOR BALDOR GENERATORS Fig 8 1 Fig 8 2 ROTOR FLASHING FOR WINC...

Page 37: ...f the amp meter starts to show a decrease in amps or is erratic as the Percent of Range nears 100 the generator is over loading The water may need to be changed or decrease the portions of electrodes...

Page 38: ...2 115 Volts 883 VA Respectively through 11 12 115 Volts 883 VA Pairings of Odd on Left Even on Right Output Binding Posts Black wires 12 Volts 500 VA White wires 12 Volts 500 VA All Wires to GPP Conn...

Page 39: ...115 Volts 1250 VA Pairings of Odd on Left Even on Right Output Binding Posts Black wires 12 Volts 500 VA White wires 12 Volts 500 VA AC AC Neg 1 2 3 4 5 6 7 8 9 10 11 12 55 66 77 2 1 5 3 7 6 Frame Gr...

Page 40: ...3 4 5 6 7 8 9 10 11 12 55 66 77 2 1 5 3 7 6 GPP Connector Stator end cover Stator end with end cover removed 4 2 1 5 3 7 6 GPP Connector 4 1 2 3 4 89 88 4 Pin connector Frame Ground Rectifier assem 12...

Page 41: ...info smith root com 360 573 0202 Vancouver WA USA www smith root com Since 1964...

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