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Velleman K7102, Иллюстрированное руководство по сборке, Страница: 5 / 12

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5 

Construction 

 

 

 

 

D1 :  1N4148 

 

2. Diode. Watch the polarity ! 

 

D...

CATHODE

 

 

 

 

ZD1 : 3V9 

3. Zenerdiode. Watch the 
polarity ! 

 

CATHODE

ZD...

 

 
The coil consists of two windings around the ferrite core supplied.  

 

In order to facilitate winding, thin double sided sticky tape can be stuck 
to the ferrite core, each winding can be held down using ordinary sello-
tape. 

 

Both windings must be wound in the same direction (see fig 1.0) 

 

 

 

Winding L1 = 120 turns  

(this winding can be marked with a sticky label) 

 

 

Winding L2 = 43 turns. 

  

 

 

1. Coils

 

L1

L2

Ø8mm

Cu 0.3mm

43T

120T

d

c

b

a

Fig. 1.0 

Содержание K7102

Страница 1: ...METAL DETECTOR K7102 ILLUSTRATED ASSEMBLY MANUAL H7102IP 1 Total solder points 47 Difficulty level beginner 1 2 3 4 5 advanced Avoid disasters when drilling holes in walls ...

Страница 2: ...n audio signal is also desired space has been provided on the PCB for buzzer type SV4 12 S to be connected The PCB has been specially constructed to fit entirely into to the separately available box type G407 Specifications Avoid disasters when drilling holes in walls Locate pipes cables metal studs Great project for novices Your own unique application Push button operation Features Detection rang...

Страница 3: ...the eyes Needle nose pliers for bending leads or to hold components in place Small blade and Phillips screwdrivers A basic range is fine For some projects a basic multi meter is required or might be handy 1 2 Assembly Hints Make sure the skill level matches your experience to avoid disappointments Follow the instructions carefully Read and understand the entire step before you perform each operati...

Страница 4: ...arefully solder the leads 2 Make sure the solder joints are cone shaped and shiny 3 Trim excess leads as close as possible to the solder joint REMOVE THEM FROM THE TAPE ONE AT A TIME DO NOT BLINDLY FOLLOW THE ORDER OF THE COMPONENTS ONTO THE TAPE ALWAYS CHECK THEIR VALUE ON THE PARTS LIST ...

Страница 5: ... core supplied In order to facilitate winding thin double sided sticky tape can be stuck to the ferrite core each winding can be held down using ordinary sello tape Both windings must be wound in the same direction see fig 1 0 Winding L1 120 turns this winding can be marked with a sticky label Winding L2 43 turns 1 Coils L1 L2 Ø8mm Cu 0 3mm 43T 120T d c b a Fig 1 0 ...

Страница 6: ...est result C2 47nF 473 5 Capacitors C LD1 5mm RED 7 LED Watch the polarity LD1 CATHODE T1 BC547B T2 BC547B T3 BC547B 6 Transistors R1 330 3 3 1 B R2 470 4 7 1 B R3 470 4 7 1 B R4 2K7 2 7 2 B R5 10K 1 0 3 B 4 Resistors R RV1 2K5 RV2 100 8 Trim potentiometers SW1 9 Push button ...

Страница 7: ...y Connect the battery terminal to the point marked red and black see figure 2 0 Connect the windings to their respective points marked with a b L1 and c d L2 see figure 3 0 10 Assembly Fig 2 0 Red Black Fig 3 0 ...

Страница 8: ... with RV2 only To set to maximum sensitivity turn RV2 until the LED is weakly lit When the detector now comes into the vicinity of a metal object the LED will be more brightly lit This gives an indication of the distance and or the size of the metal object If desired the PCB can be built into the box type G407 A hole must then be made in the lid for the push button the LED and the potentiometer If...

Страница 9: ...9 Drill pattern 12 Drill pattern for optional G047 enclosure ...

Страница 10: ...10 13 PCB layout PCB ...

Страница 11: ...11 14 Diagram Diagram 1n2 3n3 ...

Страница 12: ...5 4 1 0 3 2 9 2 8 9 6 8 3 Modifications and typographical errors reserved Velleman nv H7102IP 2004 ED1 rev 1 0 VELLEMAN NV Legen Heirweg 33 9890 Gavere Belgium Europe ...

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