Whites-electronics TDI SL 7.5 and 12 User Manual

TDI SLWhite’s Electronics, Inc.Sweet Home, Oregon USABuilding the World’s Finest metal detectors for over 60 years.

Page 10TDI SL Owner’s Manualthat higher gain will always give better depth. In air tests this isgenerally true, but ground results can depend on the a

Page 11TDI SL Owner’s ManualPulse Delay affects the ground balance point, so wheneverthe delay is changed the ground balance should also be checkedand

Page 12TDI SL Owner’s ManualGround BalanceThis control is used to balance outthe signal from ground mineralization.There is an OFF position for which

Page 13TDI SL Owner’s ManualFrequencyThis control makes small adjust-ments to the transmitter pulse rate. Thisis used to counteract any interferencewh

Page 14TDI SL Owner’s ManualTDI In DepthGround BalancingOne of the key features of TDI is its ability to balance outground mineralization while mainta

Page 15TDI SL Owner’s ManualWith Ground Balance = On and Conductivity Mode = All, all tar-gets will give an audio response, either a high or low tone.

Page 16TDI SL Owner’s ManualSetting the Target Conductivity to either Low or High will cutout half of the response, as shown in the next diagrams. The

Page 17TDI SL Owner’s ManualA lower threshold makes the TDI quieter and less chatterybut also requires a stronger target signal to produce a tonalresp

Page 18TDI SL Owner’s Manualence. Sub-gram gold nuggets are often only detectable at thelowest delay setting while larger nuggets, even of the sameall

Page 19TDI SL Owner’s Manualliterally gives you two different size coils running simultane-ously: a larger outer coil for large target depth, and a sm

Page 2TDI SL Owner’s ManualCONTENTS Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Batteries and Charger

Page 20TDI SL Owner’s ManualBesides overlapping each sweep, it is important to keep thecoil close and parallel to the ground. Pendulum-swinging thecoi

Page 21TDI SL Owner’s Manualdetectors due to the overwhelming number of EMI sources. Ifyou cannot minimize noise with the Frequency control, thenturni

Page 22TDI SL Owner’s ManualTDI-SL SpecificationsOperating mode . . . . . . . . . . . . . . . . . . . . . . . .Pulse Induction Pulse Frequency . . . .

Page 23TDI SL Owner’s ManualWarrantyIf within two years (24 months) from the original date of purchase, yourWhite’s detector fails due to defects in e

Page 24TDI SL Owner’s ManualTDI SLTreasure Hunter’s Code of Ethics1. Always check federal, state, county, and local laws before searching.2. Always ob

Page 3TDI SL Owner’s ManualAssembly1. Remove all parts from the shipping carton and check assem-bly diagram to ensure all parts are present.2. Install

Page 4TDI SL Owner’s Manualthe floor. If the instrument fit feels uncomfortable, readjustclevis/lower rod length with spring clip button and cam-lock

Page 5TDI SL Owner’s ManualBatteries and Charger The TDI-SL includes a rechargeable NiMH battery pack asthe primary power source, and a standard alkal

Page 6TDI SL Owner’s ManualQuickStart1. Set the Conductivity switch to ALL.2. Set the Frequency offset to the midpoint.3. Set the Ground Balance to ~8

Page 7TDI SL Owner’s ManualPrinciples of Pulse InductionPulse induction (PI) detectors are very different from tradi-tional induction-balance (VLF) de

Page 8TDI SL Owner’s Manualout other minor trash targets at the expense of eliminatingpotentially good targets such as jewelry, but this method is ver

Page 9TDI SL Owner’s ManualControls ThresholdThe Threshold control sets the levelat which the background audio tone isheard. In most cases, faint targ