TL12000

[GeoMax]

Hello,
does someone have the correct schematic to the posted PCB?

thanks

[Andi68]

Was it really improved or worsened?

[bernte_one]

it is not a german product

[pigeon]

GERMANY PULSE

I believe this is the correct diagram by the Iranian site they call it thr GERMANY pulse

[Andi68]

Because they have no ideaGerman technology is smarter

[pigeon]

Because they have no ideaGerman technology is smarter

it is an old analog detector does not speak this way the electronics is in all the countries of the world

[GeoMax]

Hi

Does someone know when this circuit was developed? What year?

[Andi68]

I can't find any information

[Asanka Sanjeewa]

These two circuit diagrams are correct. But there are minor flaws in both



The PCB pattern in this file is correct. Agrees with the above circuit diagram
v7bk_tl12000.zip
Thank You

[Asanka Sanjeewa]

it is not a german product

This is a German product [analog] later developed by the Iranians. Currently, information about this device is only available on Iranian and Persian web sites. Here is just one small piece of evidence
https://t-me.translate.goog/s/felezy...&_x_tr_sl=fa&_

[Asanka Sanjeewa]

https://t-me.translate.goog/s/felezy...x_tr_pto=op,sc

[GeoMax]

Hi, this is what I found about the TL12000 in the Internet....

Metal detector and treasure finder TECNIS 12000

This device is a product of the German company Conrad and is one of the latest developments in the field of professional metal detectors and is one of the most sensitive and reliable metal detectors provided by experts in this field. This device is a 100% professional long-range metal detector with the ability to distinguish between gold, nickel and ferrous metals.
This metal detector , like other metal detectors that work with Plse induction system, has a very high capability and quality, and by creating a magnetic field of its seeker mole loop, it is able to calculate different metals according to the field strength created according to their size and depth below. The earth can be easily discovered and then separated. It can also be easily used in any type of earth and under any conditions that other metal detectors are usually not able to work in such conditions. Even the waterproof probe loop can be used directly in fresh water or Used salt.
In this metal detector , it is possible to classify (separate) gold with other metals.
In this device, a pulse system is used to explore metals, and the presence of problems such as salt water - magnetic soil - and changes in air temperature, etc. نخواهد will not interfere with the operation of the electronic parts of the device.
Therefore, this device is the safest device for finding metal objects at great depths.
Quality of metal detector

This metal detector is of very high quality and expertise and is designed in such a way that both small loops and large loops can be used.
Large loops are used to track metal objects at great depths, which is preferably the best and most suitable loop for using a 1 x 1 meter loop.
This system offers a wide range against non-ferrous metal objects due to its strong and penetrating magnetic field at depth.
Device When exploring through the meter (hand) of the measuring device on the front screen of the device, by moving it to the right, we become aware of the existence of underground metal objects.
It also has a beep that can be heard through a speaker or headphones. The depths obtained in aerial tests are exactly the same as the ground depths.

Function of metal detector:

The TECNIS 12000 metal detector is based on a pulse system in which short, strong magnetic pulses are first propagated through a search loop. These magnetic pulses produce circular currents that are directed toward a metal object. These circular currents are generated. They are kept in a metal object, and after the magnetic pulse generated by the search loop is cut off, these circular currents in the metal object disappear, which is why it is possible to explore those circular currents when the time is delayed. There is the receiver of the device, which from now on acts like the receiver loops as the receiver loops.
A relatively complex electronic circuit is required to be able to detect very small voltage changes, and it must also separate that particular signal from other disturbing waves. This signal must be amplified to control voltage fluctuations that result when a metal is in the field. Or be located near the browser loop to play an audio signal through the speakers inside the headphone.
Circular currents generated in a metal object and generated by the initial pulse field are lost for a variety of reasons, depending on the conductivity of the metal object.
Therefore, the classification circuit of the device on the measuring device shows you the ability to guide the explored metal object. This gives you the necessary information about the type of metal. Metal makes it easy.
Advantages of this metal detector:

TECNIS 12000 metal detector has many features and characteristics that distinguish it from other pulse devices. Among the important advantages of this device is having a separate separation key for each loop that can be installed on the device separately and by rotating on the selector. Does.
The pulse system has many benefits, including the ability to use large-diameter loops and high transmitting power, especially when you are exploring in depth. Any loop of any size and shape can be connected to the device by setting a special key.
The system gives you the ability to explore in depth with any loop. When you increase the diameter of your loop, it will be more sensitive to larger objects and at the same time will be less sensitive to smaller objects.

Features of TECNIS 12000 metal detector and treasure finder:

This will help you a lot when you are looking for bigger objects and you do not want to look for small objects. It explores large loops to the depths. .
Other metal detectors are affected by soil and soil conditions and therefore offer little exploration depth.
The device is able to find the location of a metal object in the air as much as it can on the ground and also the sensitivity of the device to non-ferrous metals, especially gold is very high and is unique with the possibility of metal separation.
From the point of view of metal detectors, it is the best device in terms of efficiency and the simplest answer in terms of use, which has been observed in the manufacture of the device.

• High sensitivity to a variety of metals
• Reliable, easy and simple to use
• Accurate pointing with large loops
• Easy and effective exploration of large areas
• Ground operation with uneven surface
• Strong and durable mechanical building
• There are various loops to explore
• Quick audio response with voltage fluctuation control and battery charge status display on the front panel of the device
• Waterproof checker usable loops
• Having a separation key to perform the separation operation with each loop automatically
• Having a durable bag

Also see the specifications of the EMFAD UG12 Pro treasure hunter metal detector .

[Andi68]

If a person claims that, it is not credible for me.Conrad doesn't build detectors
People spread information there who are neither German nor live in Germany

[GeoMax]

Hi Forum,

The advertising of TL12000 claims the following.

„….This device is a 100% professional long-range metal detector with the ability to distinguish between gold, nickel and ferrous metals….”

Looking at the circuit diagram, I cannot see any circuit part who is able to distinguish between gold, nickel or ferrous metals like seen e.g. in
the Gold Scan 4 detector circuit. In the TL12000 is only a sample delay circuit, which you can find in almost any PI detector.

So what makes the author claim that the TL12000 is able to distinguish between different metals?
Is it just misleading advertising?

[GeoMax]

TL12000?s discrimination secret revealed.

In YouTube videos, the detector TL12000 shows some discrimination capabilities. Analysing the videos and available circuit diagrams, posted here in the forum, it shows that the detector has only a sample delay feature like almost any PI detector has. The use of the sample delay circuit achieves some kind of ?reverse discrimination?. Further, the detector has a manual and pre-set sample delay functionality in the design. Again, this is nothing special; almost every PI detector has this function too.

The reverse discrimination feature (sample delay) and the use of a sample & hold IC ( LF398 ) needs to investigated further. Maybe these combination woks good to achieve a decent discrimination functionality as seen in the YouTube videos.

Looking at the meter circuit, the circuit cannot distinguish between different metals at all. The meter circuit shows only the target signal strength. Nothing more. The target strength is than converted by the LM331 (U/F) into a frequency allowing different target responses to achieve different sounds.
Again here this is nothing special or new, many other detector circuits on the Internet uses similar features achieved with a CD4046 IC.