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TW-7700

Operating Manual

F I S H E R R E S E A R C H L A B O R A T O R Y

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Summary of Contents for TW-7700

Page 1: ...TW 7700 Operating Manual F I S H E R R E S E A R C H L A B O R A T O R Y Digital Line Tracer...

Page 2: ...scription pg 3 Transmitter pg 4 Receiver pg 5 Accessories pg 7 Operating Instructions pg 8 Depth Accuracy pg 9 Specifications pg 10 Using Headphones pg 11 Treasure Hunter s Code of Ethics pg 11 CONTEN...

Page 3: ...best results When a direct connection is not available but the operator has good knowledge of where one point of the utility may be the operator can place the Transmitter over the utility making sure...

Page 4: ...he operator to turn the transmitter on or off and to check the condition of the batteries When checking the batteries a reading if 50 or greater on the dis play meter indicates that batteries are usab...

Page 5: ...level of the receiver A bar graph on the right side of the display will give status of the batteries When the graph shows 1 bar it is time to replace the batteries Additionally as the opera tor uses t...

Page 6: ...ht Indicates the display is lit activated by pressing LIGHT pad Bar Graph Serves three purposes Responds in conjunction with signal strength Visual indicator for battery test when BAT pad is pressed V...

Page 7: ...Headphones Single Earpiece Headset Enables the operator to effec tively listen to the TW 7700 and remain aware of noise in close proximity Headsets This represents a jumper Coupling Clamp Applications...

Page 8: ...T indicator is very helpful Swing the receiver from left to right and listen for the change of tone When the target is to the RIGHT of the receiver the tone is pulsed tone As the receiver gets closer...

Page 9: ...iver Signal Strength When the signal strength falls below 20 25 depth read out may not be accurate It would be beneficial to move the transmitter to a closer point of contact Nearby Utilities Close ne...

Page 10: ...c Readout 0 99 Bar Graph Sensitivity Adjust Automatic LCD Backlight Included Battery Test Automatic Low Battery alert Push button readout Battery Type Six C cells Battery Life 80 Hours Weight 5 4 lbs...

Page 11: ...te and protect our inheritance of natural resources wildlife and private property Act as an ambassador for the hobby use thoughtfulness consideration and courtesy at all times Never destroy historical...

Page 12: ...warranty may vary in other countries check with your distributor for details Factory warranty follows the channel of distribution Warranty does not cover shipping costs S E R V I C E Fisher is commit...

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