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TDI 

Pr o

 

Owner ’s Gui de   19

 

How to use i t 

PULSE DELAY is measured in microseconds (uS). 10 uS is the lowest 
setting, which samples as close as possible to end of the transmitter 
pulse. This setting gives the highest sensitivity to all objects regardless of 
conductivity.  However, raising the pulse delay toward 25 uS can minimize 
ground mineralization signals and maximize the signal to high-conductive 
metals such as silver or larger targets by suppressing the signal from low 
conductivity targets. This setting can be set anywhere between 10 uS and 
25 uS depending on the circumstances to enhance performance. 

If you wish to concentrate on 

detecting low-conductive targets

 for maxi-

mum sensitivity, you would want to set your Pulse Delay as close to 10 uS 
as possible for the ground being searched. Low-conductive targets would 
include small to medium gold nuggets, small or thin gold rings, and chains 
as well as very thin, small hammered silver coins. If you were detecting for 
thin gold rings at a beach, this would also be the proper setting to achieve 
the most sensitivity.

 Of course, at 10 uS you will also hear small bits of iron trash, bits of foil, 
boot tacks and bits of nails, and very small pieces of lead like bird shot.  
You may hear nails when swept across the broadside, but not when 
sweeping from tip to tip. Aluminum & pull-tabs will also be heard.  Very 
low pulse delays can also result in the detection of conductive salt water 
when detecting along beaches. Typically 17.5 uS is the best Pulse Delay 
when searching wet salt. 

If you were primarily looking for 

high conductive metals

, such as silver, 

increase the Pulse Delay toward the maximum setting of 25 uSec-
onds, 

thus reducing the signals from very small trash items such as small 

iron and foil. Large iron usually falls into the category of silver, and gives 
a stronger signal at higher Pulse Delays as well. One important thing to 
remember is that whenever you change your Pulse Delay, you should 
check and readjust your ground balance as necessary.

Summary of Contents for TDI Pro

Page 1: ...TDI Pro Owner s Guide 1 TDI Pro OWNER S White s Electronics Inc Manufacturers of the World s Finest Metal Detectors GUIDE...

Page 2: ...n of the detected target User controlled manual balancing of the ground has the additional bene t of giving the user the option of ne tweaking for different situations thus increasing the probability...

Page 3: ...s 7 CONTROLS 10 ON OFFGAIN 10 VOLUME 11 THRESHOLD 12 TARGET CONDUCTIVITY 14 FREQUENCY 18 PULSEDELAY 18 GEB GROUND EXCLUSION BALANCE 20 INITIALSET UP 23 More Variable Audio 27 More Pulse Delay 29 White...

Page 4: ...E Washers between each loop ear clevis Search Coil Cable Retainer Camlock Clevis Lower Rod S rod Search Coil Connector Control Box Battery Compartment Door Headphone Jack Battery Compartment Latches S...

Page 5: ...First revolution over the top of the rod Wind cable all the way to the top of the curved S rod 10 16 revolutions Use the black cable retainers one near the search coil and one near the top of the cur...

Page 6: ...rarely produce the typical depth and tone results of targets that have been naturally lost and settled in undisturbed ground Due to the abnormalities caused by digging a hole in the ground matrix and...

Page 7: ...rent levels while weighing much less than other battery packs that have similar power characteristics It supplies a nominal voltage of 14 4 volts and approximately 500 ma of current during use Lithium...

Page 8: ...o a household wall outlet b The LED lights in the charger will ash RED GREEN RED GREEN This is a self check that indicates the charger and battery are operating correctly c The RED light then comes on...

Page 9: ...12 volt automobile accessory cigarette lighter plug in c The charger light will ash RED GREEN RED GREEN This self check cycle indicates the charger is working properly d The RED light will turn on to...

Page 10: ...Pro ON clockwise and OFF fully counterclockwise and selects the range at which the de tector will hear a given target Gain increases or decreases the ampli ca tion of the receive signal determining bo...

Page 11: ...e with increased performance and improved penetration When operating the Pulsescan TDI Pro with a Threshold that is as smooth as possible the clarity of a true target signal will not be confused or hi...

Page 12: ...maxi mum reducing the volume with the headphone volume control THRESHOLD What it does The Threshold adjusts the steady faint background hum heard continuously dur ing searching This is the edge of res...

Page 13: ...r s Guide 13 THRESHOLD LEVELS Noise Threshold Level Noise Chatter can be heard in Threshold Threshold Level Threshold set above chatter so chatter is not heard Reduce volume with headphones NOT RECOMM...

Page 14: ...must be set to ALL or LOW and all signals will sound the same How to use it Set FINE GEB clockwise from OFF Set TARGET CONDUCTIVITY to low for low conductive metals only including small to medium size...

Page 15: ...rge pieces of lead lead mini balls lead musket balls lead loom weights bronze buckles bronze weights bronze artifacts etc IMPORTANT TARGET CONDUCTIVITY Toggle only functions when the FINE GEB is ON cl...

Page 16: ...16 TDI Pro Owner s Guide Only High Conductivity Targets RESPOND Both High and Low Conductivity Targets RESPOND Only Low Conductivity Targets RESPOND ALL LOW HIGH...

Page 17: ...all small to medium sized gold nuggets will fall in the low conductive category Prospectors should possibly opt to search while hearing both high and low conductive metals until a determination is mad...

Page 18: ...cy range of 3 25 kHz to 3 37 kHz pulses per second How to use it Electrical interference is not exclusive to urban areas where power line harmonics local radio transmissions or microwave transmissions...

Page 19: ...ell as very thin small hammered silver coins If you were detecting for thin gold rings at a beach this would also be the proper setting to achieve the most sensitivity Of course at 10 uS you will also...

Page 20: ...duction detector which hears all metal targets with out Variable Audio has no TARGET CONDUCTIVITY option and no COARSE or FINE manual ground balance control Again FINE is used to make minor adjustment...

Page 21: ...ne tune for as little change in Threshold as possible while pumping the search coil 1 6 inches over the ground This area of quiet where you hear only the faint hum of the threshold is where the Pulses...

Page 22: ...FINE control must be used Clockwise of OFF The Ground Balance Variable Audio and TARGET CONDUCTIVITY feature will be active This situation indicates that there is enough iron mineralization to balanc...

Page 23: ...ound Balance control at approximately 8 2 If you have set the Pulse Delay midway set the Ground Balance at approximately 6 3 If you have set the Pulse Delay at 25 uS which is suggested for beaches rel...

Page 24: ...DI Pro is a motion detector which means that as the search coil passes over the target you hear a response only when the search coil is kept in motion Stopping over the target the signal will disappea...

Page 25: ...s the search coil passes over the target Now is a good time to adjust the volume to a comfortable level and so that you can hear a good response from the target while being able to hear the continuous...

Page 26: ...nge in threshold as the search coil is pumped 1 6 inches over the ground continue pumping the search coil while adjusting rst the COARSE GEB for no change in Threshold then the FINE to ne tune for no...

Page 27: ...arket this function is touted as an IRON ID feature This is not a true description of what is happening and is why we will call this feature Variable Audio as that more correctly describes it The audi...

Page 28: ...enter of the search coil The low tone heard over large non iron targets large gold silver copper is usually smoother than the low tone heard over iron targets which can be irregular In addition at iro...

Page 29: ...n as low conductive high pitched tone so will be seen best at a lower pulse delay 10 uS 10k or 14k rings will usually react as low conductive whereas a purer gold ring 22k and 24k may react as high co...

Page 30: ...lse Delay setting does affect the Ground Balance process you must re adjust GEB ground balance after changing the level of pulse delay Most typically only minor adjustments to FINE GEB are necessary a...

Page 31: ...u returned your metal detector to our factory in Oregon White s Service Centers are factory trained and equipped and provide high levels of metal detector service with fast turn around times Constant...

Page 32: ...ee il com 3 White s Southeast Service Center Centreville Electronics 10063 Wellington Rd Manassas VA 20110 888 645 0202 703 367 7999 703 367 0868 FAX bob cwrelics com WHITE S USA WARRANTY If within tw...

Page 33: ...use neglect alterations modi cations unauthorized service or prolonged exposure to corrosive compounds including salt Duration of any implied warranty e g merchantability and tness for a particular pu...

Page 34: ...NALOWNER Name ____________________________________________________ Address Which appears on the original warranty card __________________________________________________________ ______________________...

Page 35: ...CARRIED OUT BYUNAUTHORIZED PERSONS WILLAUTOMATI CALLYNULLIFYTHEWARRANTY If within two years 24 months from the original date of purchase your White s detector fails due to defects in either material o...

Page 36: ...is warranty does not affect your statutory legal rights White s Electronics UK Ltd 35 J Harbour Road Inverness Scotland IV1 1UA Telephone 01463 223456 Fax 01463 224048 E mail sales whites co uk Web si...

Page 37: ...__________________________________ __________________________________________________________ __________________________________________________________ Instrument Serial _____________________________...

Page 38: ...me Oregon 97386 USA 541 367 6121 www whiteselectronics com White s Electronics UK Ltd 35 J Harbour Road Inverness Scotland IV1 1UA Email sales whites co uk Web site www whites co uk Edited by Jimmy Si...

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