Underground Metal Detector

Introduction:
AR924M metal detector is a new improved product and application of foreign advanced technology and imported components. With the old product comparison, the instrument to lean in the design, the utility model has the advantages of probing depth, accurate positioning, strong resolution, simple operation etc.. The metal detector is used to detect and identify hidden buried in the ground or other medium within the metal, which in addition to the application for use, but also widely used in: *Customs and security checks *The department detective searched. *Metal foreign body detection of raw materials, fuel, food. *Metal foreign body check mail and package. *Detection of underground pipeline, the line. *Archaeology, exploration. *Found buried treasures of gold and silver and metal artifacts. *The acquisition of scrap metal industry. Because the soil is composed of a mixture of various minerals and become, in the use of the old metal detector is, when the probe and the distance of the ground changes, instrument signal change, when the probe ground surfaces, or near the mound, stones, bricks and instrument can send signals, this phenomenon is called "mineralization reaction". The stratigraphic structure complex, "mineralization reaction" is very strong, the signal caused it to cover the metal target signal, the user is difficult to judge the signal is issued by the metal target signal or "mineralization reaction" signal. Improved metal detector adopts advanced balance circuit design, can eliminate most "mineralization reaction" influence, only in the detection of the metal signal, thus greatly improving the detection depth and accuracy.

1. Specification
2. Instrument control key description (1) Button In the instrument control has a button panel under the center, its role is very important, the instrument in the adjustment, operation process, often have to press and release the button. By pressing, push the button, memory circuit of the instrument will automatically record the adjusted state. If you forget to press, push the button, will affect the detection sensitivity. (2) Power switch The role of power supply for opening and closing the product power supply. (3) Tuning Adjust "Critical" state. The tuner is called "critical" sound; the tuner by left clockwise rotated slowly, sound gradually from scratch, from small to large; instrument used in detection, should be transferred to a faint "buzz" sound, can barely hear it, this is "critical" sound; only to the faint sound when the instrument, has the highest sensitivity, if the "critical sound" is too big or no voice, the sensitivity will be reduced. Before the "critical" sound, must press the button and then releasing, otherwise no voice; if in the detection process, "critical" sound gradually increasing or decreasing disappeared, according to push the button to restore the "critical sound" detection. Equipment after use, please turn off the power switch. (4) Operating Switch Operating mode switch is divided into two grades, namely: to balance the files and the identification of document; to switch to balance the file, the instrument will respond to all metals, and can eliminate the "mineralization reaction.". If the switch to the identification of document, the instrument can distinguish different kinds of metal. (5) Work Adjustment Work with operation mode switch knob is used, it is marked with scales around 0-10. In the balance operation, through the adjusting knob can exclude "mineralization reaction"; in the recognition mode of operation, use it to distinguish different kinds of metal.
(6) Sensitivity indication In the instrument control panel is provided with a five level detection central indicator light, when the instrument to detect metallic or resolution of metal type, according to the signal strength detection indicator increases gradually, the stronger the signal, the more increasing series. (7) Power / low power indication light The switch is arranged beside the power indicator light in the instrument power supply, when the power is turned, the indicating lamp is bright red light; when the battery voltage, the indicator light turns dark, prompting the user to charge. (8) Lighting switch Lighting switch is arranged in the host side, when the switch is opened, at the bottom of the host machine lights lit, so in the dark or night use detector. (9) The earphone jack Detector equipped with ear phone, when the plug in ear phone, speakers sound interrupted, the user can hear the sound from the ear phone, in order to operate in a noisy environment or at night. (10) The charging jack Charging jack is arranged on the host side, for charging the lithium battery.