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Iron

Iron is a common metal. It’s usually not the detection target, undesirable iron 
objects contains iron nail, bolts, old cans, caps and so on. But some valuable 
relics may also be made of iron, such as old ornaments, old armature and so 
on.

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Ferrous

Metals which are made of, or contains iron.

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Trash metals

Caps, pull-tabs, S-caps are the most bothersome trash items for treasure 
hunters; you should eliminate them during detecting. But some other 
valuable objects have a similar magnetic with the above trash metals, and 
will also be eliminated as trash when discriminating.

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Pinpoint

Pinpoint is a process of determining the exact location of the buried metal 
object. On this motion mode, you need to move the search coil continuously 
when detecting, if it’s hard to determine the exact location of the buried 
metals. In the Pinpoint mode, select Non-motion technology to let the center 
of the search coil be aligned with the location of the buried metal, to help 
your excavation.

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Ground balance

Metals buried in the earth mineralized material in the soil affect metal 
detection. The ground balance will eliminate or weaken the shielding effect of 
the mineralized soil. The ground balance is divided into built-in ground 
balance and adjustable ground balance.

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Coins depth

The coins depth the detector referred to, which is generally the approximate 
distance that the 25

silver is in the neutral soil or in the air. It’s not an exact 

depth.

Specification

● Operation mode: four plus one 

   Motion mode: ALL-METAL, DISCRIM, JEVELRY, CUSTOM and COINS

   Non-motion mode: PINPOINT

● Coins depth indication: 1,2,3,4,(2”,4”,6” and 8+)

● Sensitivity control: 4 SENS SEGMENTS

● Target metals discrimination: 6 kinds

                                                 10 to 99 double digit

● Sound frequency: three kinds of sound indicate different metals

● Battery indication: three SEGMENTS, blinking means time to change the       

   batteries 
  

Summary of Contents for PHMD74

Page 1: ...PHMD74 USER MANUAL...

Page 2: ...on Mode This is one of the circuit operation modes in the metal detection technology When detecting you should move the search coil continuously In general motion mode can reduce the effect of the soi...

Page 3: ...Pinpoint mode select Non motion technology to let the center of the search coil be aligned with the location of the buried metal to help your excavation Ground balance Metals buried in the earth miner...

Page 4: ...hone not supplied Power supply 6 AA batteries batteries not supplied Note When the power supply is switched on within a few seconds the metal detector will go into self inspection program Don t let th...

Page 5: ...s with four holes for you to adjust the length of the connecting rod so that you can comfortably erect and straighten your arms and keep the search coil away from the ground about 1 2 inch See Fig 2 3...

Page 6: ...rity symbols marked inside the battery box 3 Close the battery cover When a KATA tone being heard which means the battery cover has been covered well Ensure the direction of UP on the battery cover is...

Page 7: ...pe of the detected metal The three kinds of prompted signal corresponding to the target ID cursor See the table below Note The position of the target ID cursor may change as it is affected by the soil...

Page 8: ...ize the angle and the material of the target the composition of the soil will all affect the indication value PINPOINT mode cursor it is used with the digit cursor Touch the P P button displaying the...

Page 9: ...off Mode button Press the MODE button to choose from the 4 operation modes circularly Boot setting is in the ALL METAL mode ALL METAL The detector is in the ALL METAL mode and to all kinds of metals t...

Page 10: ...he detector turns into PINPOINT mode and it no longer has the ability to identify At this moment the PP cursor is lighted and indicates the signal strength The more close to the metal target the more...

Page 11: ...e detector until the detector has the balance completed and sound tweets 4 ALL METAL mode test Sweep the four metal samples 7 to 10cm above the search coil a The detector sounds three different tones...

Page 12: ...ame with the ALL METAL mode See Fig 11 take 1 zinc coin as an example 6 Memory mode test a Press the MODE button again the operation mode cursor points to MEMORY The target ID cursor upper cursor is e...

Page 13: ...the detector be back to the state of figure 12 Press the MODE button exiting the MEMORY mode and go into the next operation mode 7 COINS mode test a Press the MODE button again the operation mode curs...

Page 14: ...und a slight single frequency mediant See Fig 16 b Let the 25 silver coin approach the search coil slowly in the position of about 7 8 the first group of signal strength cursor begins to appear and th...

Page 15: ...n results This chapter is only the general steps of the field detection You should operate again and again accumulate experience to achieve good results 1 Turn On Hold the detector keep the search coi...

Page 16: ...constant speed not unsteadily Let the search coil be parallel with and about 1 2 inch from the surface not to swing it like a pendulum high and low above the ground See Fig 18 Most valuable metal obje...

Page 17: ...et has been locked By the center of the open search coil mark on the ground to facilitate mining d Repeat the operation for several times and approach the target for several times until you lock the l...

Page 18: ...e use of the non motion mode In fact the sensitivity in the non motion mode is high search metals directly using non motion mode is also a choice In some regions the ground is too narrow to sweep sear...

Page 19: ...can get a more stable signal 2 If the target is buried deeply you could try to increase the sensitivity or speed up the speed of sweeping the search coil in order to get a more stable signal 3 Maybe...

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