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10

Figure 7.

 Search coil detection

pattern and the effects of sweep,
speed, trash rejection and ground
mineralization.

PINPOINTING

1

2

3

4

1. MINIMUM DEPTH

a. 

Very slow or fast sweep

speed.

b. 

Trash rejection set at “10.”

c. 

Highly mineralized soil.

2. GOOD DEPTH

a. 

Moderate sweep speed.

b. 

Trash rejection set at “5.”

c. 

Moderately mineralized soil.

3. MAXIMUM DEPTH

a. 

Moderate sweep speed.

b. 

Trash rejection set at “0.”

4. MISSED TARGETS

 Many targets

well within the range of the
1212-X will not be detected
unless you overlap your
sweeps.

Summary of Contents for 1212-X m-scope

Page 1: ...1212 X Operating Manual One Knob Metal Detector F I S H E R R E S E A R C H L A B O R A T O R Y...

Page 2: ...on Points pg 5 Searching pg 7 Pinpointing pg 9 Recovery Tools pg 11 Target Recovery pg 11 Operating Tips pg 12 False Signals pg 13 Battery Replacement pg 14 Maintenance pg 15 Treasure Hunters Code Of...

Page 3: ...rejection level and start searching No tuning no meter no gimmicks Performance If you ve tested other detectors in this price range you re in for a pleasant surprise In fact you may find that your 121...

Page 4: ...knut 5 Adjust the stem length using the locknut and the coil angle using the nylon wing nut so that the search coil rests flat on the ground about 6 inches in front of and slightly to the right of you...

Page 5: ...raight until the search coil is about 2 inches above the ground and 12 inches in front of your foot The search coil should be parallel to the ground and may have to be slightly readjusted at this poin...

Page 6: ...ack accepts most stereo and mono headphones with 1 4 diameter plugs When used the speaker is automatically disconnected A headphone can be very helpful when hunting in noisy areas or detecting faint s...

Page 7: ...at the 1212 X is a motion detector and responds only when the search coil or the target is moving 4 Increase the TRASH REJECTION control to a setting of 3 and again pass over the targets Repeat this p...

Page 8: ...level you progressively eliminate more targets including some good ones such as nickels and gold rings NOTE The discriination levels shown are typical values only and may vary from detector to detecto...

Page 9: ...an lower the rejection level for pinpointing zero trash rejection will produce the strongest signal over small or deep targets 2 Search slowly and systematically sweeping in a tight semicircle see ill...

Page 10: ...ther motion detectors may require a fast sweep speed for maximum sensitivity If you try that with your 1212 X you ll actually lose sensitivity Figure 6 Keep the search coil parallel and close to the g...

Page 11: ...st it on the ground 6 Your target should be below the Hot Spot of the search coil which is marked by a bull s eye slightly below the center of the coil 7 Slowly move the coil aside keeping your eyes o...

Page 12: ...slow or fast sweep speed b Trash rejection set at 10 c Highly mineralized soil 2 GOOD DEPTH a Moderate sweep speed b Trash rejection set at 5 c Moderately mineralized soil 3 MAXIMUM DEPTH a Moderate...

Page 13: ...n a separate booklet enclosed with your 1212 X WHICHEVER TOOL OR METHOD YOU CHOOSE REMEMBER THAT RESPONSIBLE TREASURE HUNTERS TAKE PRIDE IN THEIR ABILITY TO LEAVE SOIL AND VEGETATION INTACT AND UNDAMA...

Page 14: ...ways bury a coin when working in unfamiliar territory and check it at different trash rejection levels There is some sensitivity loss at higher levels of discrimination The greater the ground minerali...

Page 15: ...by increasing the trash rejection level Some other sources of false signals are 1 ELECTRICAL INTERFERENCE Caused by radio TV stations power lines or nearby detectors operating at the same frequency S...

Page 16: ...our waist A very weak or inaudible response means that it s time to change the battery A single 9 volt transistor battery is attached to the inside of the battery panel at the rear of the control hous...

Page 17: ...ALWAYS do whatever you can to give the hobby of Treasure Hunting the good image it needs and deserves Your 1212 X doesn t require a lot of care but there are a few things you should do to keep it in p...

Page 18: ...park ranger before attempting to use your detector Bureau of Land Management BLM Lands Some areas are open for metal detecting and some are not Always check with the district office City or County Par...

Page 19: ...4 Batteries 1 9V Transistor Battery Life 2 6 Carbon Zinc 10 15 Hours Alkaline 25 35 Hours Notes 1 Subject to improvement or modification without notice 2 Approximate 3 Pulsegate Unipolar Audio Proces...

Page 20: ...ves in the products we produce and backs this belief with a lifetime warranty Warranty may vary outside of the United States See your dealer for details EXPORT DEPARTMENT P O Box 1896 New Haven CT 065...

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