Exploration panel machine row mineralization

It's easy to assemble the metal detector without any special tools, just follow the following steps:
1. Turn the lock knot on the metal rod clockwise to make it loose
2. Hold the detector standing, when the distance between the detection plate and the ground is between 0.5 and 2 inches, make the arm naturally and comfortably placed, and you can adjust the length of the detection rod accordingly
3. Turn the lock knot anticlockwise to lock it in a fixed place
4. Turn the nut on the detection disk and move it away from the screw. Insert the metal Xuan and align it with the bracket hole on the detection plate, re insert the screw into the hole, and then tighten the nut
5. Wind the detection cable around the metal rod. Enough length is left to enable high-speed detection of the detection disk when detecting uneven ground
6. Insert the plug of the detection panel into the socket on the control panel. Make sure that the core on the plug is aligned with the socket
note: the probe plug can only be inserted into the socket in one way. Do not insert it with force to avoid damage. Disconnect the cable of the detection panel from the detection panel, and grasp the plug to pull it off, but do not pull the cable
7. Loosen the nut on the detection panel, so as to adjust the detection panel to the required angle (the detection panel should be parallel to the ground). Screw the nut to a proper degree to detect the rotation and vibration of the disk
note: do not over tighten the detection disk, and do not use pliers and other tools to tighten it. You need eight 1.5-volt batteries to power the metal detector
note that you can only use new batteries of specified size and recommended model
do not mix old batteries with new batteries, different models of batteries (standard batteries, alkaline batteries or rechargeable batteries) or rechargeable batteries of different capacities
1. Keep the instrument off when the battery is installed
2. Press and hold the right battery cover, and move the cover away in the direction of the arrow
3. Put four 1.5V batteries into the battery compartment, and pay attention to the positive and negative marks
4. Reposition the right battery cover
5. Press and hold the left battery cover, And move the cover away in the direction of the arrow
6. Put four 1.5V batteries into the battery compartment in the correct direction of the positive and negative poles
7. Cover the left battery cover again
attention
● replace the old batteries and weak batteries in time; The battery can leak chemical substances and damage electronic components.
● if you do not plan to use the detector for a week or more, please remove the battery.
● dispose of the old battery properly.
(1) after the test battery is turned on,
if the detection indicator is very dark or not on, the detector will not be turned on, the volume will be weak and cannot be tuned properly, The operation is unstable or deviated, which indicates that the battery is low in energy and needs to be replaced 2) Adjust the level meter
to turn off, and use a screwdriver to point the pointer at 0 on the scale. You can connect a headset (not equipped, self provided) to the detector, so that you can hear the sound by yourself. Using the headset can save the battery, at the same time, it is easier to determine the subtle changes in the sound, so as to achieve better detection effect. When you use headphones, the built-in speakers are not in use< Description of operation keys of the instrument:
1. Zero adjustment button
there is a button called zero adjustment button at the position of the index finger holding the handle of the detector. Press it and the pointer of the meter will return to the zero scale. The zero button has memory function, it can remember the working environment of the instrument at that time. For example, if the detection disk is placed above the soil, the soil will proce a certain signal to the instrument and make the pointer bias to the scale of 0. When the button is pressed, the pointer will return to the scale of 0, and the signal of soil will be gone. At this time, it can be used to detect metal. Therefore, it must be pointed out that the button can not be pressed around metal objects, because after pressing, the signal of metal will be memorized, If we meet metal again, we won't be able to detect it. It must also be pointed out that when adjusting any knob of the instrument, you must first press the down zero button, and then release it. In the process of detection, with the change of environment, the pointer of the meter will deviate from the zero scale, and the pointer will return to the zero scale after pressing the button. Therefore, this button should be pressed frequently ring the whole detection process
note: when you start the machine, you need a warm-up time of about one minute. Otherwise, if you press the down zero button, the pointer will deviate once you release it, and it will remain normal after warm-up< 2. Tuner button (tune):
by adjusting the tuner button, the sound of the instrument can be heard from scratch, from light to loud. When the sound is barely audible, it is called critical sound. Only when the instrument is adjusted to the critical sound, can the instrument have the highest sensitivity. Otherwise, no sound too loud or no sound at all will rece the detection effect. Note: when adjusting the critical sound, the zero button should be pressed and released after adjustment. In the process of using the instrument, if the critical sound graally becomes larger or smaller, it can be restored by pressing the zero button
3. Sensitivity
the sensitivity of the detector is controlled by the sensitivity knob. When the knob is turned to the bottom anticlockwise, the sensitivity of the instrument is the lowest. Conversely, when the needle is turned to the bottom clockwise, the sensitivity is the highest and the detection depth is the largest. The adjustment of sensitivity depends on the environment. The higher the sensitivity, the better. For example, in places where the "mineralization reaction" is large, if the sensitivity is too high, it will cause false signals, and the instrument will ring everywhere, but it will not be able to detect things
at this time, the sensitivity should be reced to support the influence of complex formation on the instrument
note: before adjusting this button, press the down zero button first, and then release it< The way to detect the br />4. balance knob (GROUD BALANCE)
the balance knob is to place the operation mode switch on the ground balance and then adjust the balance button. Set the ground balance button to max, and the sound of the instrument will increase. At Min, the sound will decrease
5. Discrimination
the discrimination knob is used to identify the working mode, so the working mode switch should be turned to the discrimination gear before rotating the knob. By aligning the identification knob to different scales, we can select different signals. If the identified target is an iron plate, the following phenomena will appear: when the probe moves close to its edge, the reaction is the same as that of ferrous metal, and after the probe is placed above the iron plate, the reaction is the same as that of non-ferrous metal. In this case, you can not only judge that the underground is an iron plate, but also estimate its area. Another function of the identification knob is to exclude small pieces of metal from the same kind of metal and select large pieces of metal. For example, to bury a 5-cent coin in the ground, we turn the identification knob clockwise to the right (pay attention to press the knob), and then move the probe over the coin. After several adjustments, the probe just makes a weak sound when it approaches the coin, This is the detection point of coins. After setting this point, all non-ferrous metals larger than 5 cents can make sound, and those smaller than 5 cents are excluded because there is no signal
note: press the button before adjusting the identification button, and release it after adjusting
6. Operation mode switch (group balance & amp; The operation mode switch has two gears, one is ground balance, the other is identification. In the ground balance gear, the instrument makes a sound to all metals and has no identification function. However, it can exclude the influence of "mineralization reaction" of the formation. After the instrument is adjusted and balanced, it has enough penetrating power, stable operation and accurate indication. Therefore, this method is generally used when detecting a certain section. The identification method is used in conjunction with the land balance method. After the existence of metals is verified by the land balance method, the identification file is used to distinguish the types of metals, or the valuable metals of large pieces are selected in those places where there are a lot of scrap metal debris
except for the sensitivity adjusting potentiometer, the metal detector circuit has no adjusting part. As long as the welding is correct, the circuit can work normally. When the whole machine is in static state, that is, when the loudspeaker is silent, the total current is about 10mA. When the sound is detected from the metal loudspeaker, the current of the whole machine rises to 20mA. A new built-up battery can work for 20 to 30 hours
if the newly welded metal detector can not work normally, first check whether the components and wiring on the circuit board are welded correctly, and then measure whether the battery voltage and power supply circuit are normal. The stable voltage of voltage stabilizing diode VD1 is between 5.5 V and 6.5V, and the polarity of VD2 should not be reversed. Do not weld the first stage and the end of the oscillating coil in the detecting disc wrong
before using the metal detector, it is necessary to adjust the length of the detection rod, as long as the black glue is loosened, the rubber sleeve is pushed and pulled to the appropriate length, then the inner rubber sleeve is rotated to make the cable tightly wound, and the handle tip is upward, finally the black glue is tightened and the rubber sleeve is locked. In this way, when holding the detector handle, the thumb is right next to the sensitivity adjusting potentiometer
when adjusting the sensitivity of the metal detector, the detection disc (oscillating coil) should be far away from the metal, including the paper with aluminum foil, then turn the fine tuning potentiometer knob to turn on the power switch, and turn it to half of the position, then adjust the coarse tuning potentiometer knob to stop the loudspeaker audio call, and finally fine tune the potentiometer, When the loudspeaker calls just stop, the sensitivity of the metal detector is the highest. When the metal detector is used to detect metal, as long as the detecting disc is close to any metal, the loudspeaker will make a sound, and the sound will stop automatically when it is far away from a certain position
this metal detector has high sensitivity. When it is used to detect large pieces of metal, the speaker will make a sound 20 cm away from the metal object, as small as a paper clip or even a pin, but the coil of the detecting disc must be close to the small metal object. Because the metal detector uses the electromagnetic inction of the oscillating coil to detect metal objects, it can detect the covered metal objects through non-metal objects, such as paper, wood, plastic, masonry, soil, and even water layer, so it has practicability. For example, when decorating a house, it can detect the wires or steel bars in the wall, so as to avoid the construction danger and hidden danger; Another example is the metal detector for security inspection, which is made according to this principle