DRMOIS TX 920 Metal Detector User Manual

: June 9, 2024
: DRMOIS

Table of Contents

DRMOIS TX 920 Metal Detector
Assembly
Battery
Panel (LCD and Key)
Target Indications
Outdoor testing and use
Adjusting sensitivity
Factors that affect the detecting
Care and maintenance
Warranty Conditions
References
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DRMOIS TX 920 Metal Detector

DRMOIS-TX-920-Metal-Detector-product-image

Dear customer,
Thank you for purchasing our product. Please read the following instructions carefully before first use and keep this user manual for future reference. Pay particular attention to the safety instructions. If you have any questions or comments about the device, please contact the customer line.
www.alza.co.uk/kontakt
+44 (0)203 514 4411
Importer Alza.cz a.s., Jankovcova 1522/53, Holešovice, 170 00 Praha 7, www.alza.cz

With your TX – 920 Metal detector, you can hunt for coins, relics, jewellery, gold, and silver just about anywhere. The detector comes with high sensitivity and strong ability of
discrimination. It is versatile and easy to use. The detector’s features include:
LCD Display: Shows the probable type of metal, the strength of signal, range of DISC & Notch, the level of SENS and VOLUME, and battery condition. It also has numeric display for target.
Three Tone Audio Discrimination: Sounds three distinctive tones (high, medium, and low) for different types of metal.
Notch: Ignores junk metal and finds valuable items by setting the Notch range.
DISC: Discriminates the unwanted target by setting the DISC numeric range. The detector will not detect the target beyond the numeric setting.
PP: Pinpoints the location of the target accurately.
Super Slow Sweep Identification: With a very slow sweep of the search coil to discriminate different types of metal.
Headphone Jack: Lets you connect headphones of 3.5 mm and operate without trouble.
Waterproof Search coil: Lets you use the detector even if you must put it under shallow water.
Adjustable Shaft: Lets you adjust the length of shaft for comfortable use.
Power: Your metal detector requires two 9-volt alkaline batteries.

Assembly

The structure of TX-920 is shown in the Picture 1 below.

Loosen the lock knob on the lower stem, take down the bolt. Install the lower stem on the search coil and lock it tightly (see Picture 2).
Loosen n the lock nut on the middle stem, press the silver button on the lower stem, insert to the middle stem (see Picture 3).
Loosen the lock nut on the other end of the middle stem. Press the silver button on the upper stem and insert it into the other end of the middle stem (see Picture 4).
Adjust the length that the lower stem inserts to the middle stem. Also, you can adjust the total length of the stem, making you detect comfortable with your arm straight.
Wind the cable of the search coil around the aluminium stem, elastic moderate, let it not sway. plug the cable plot into the lower right of the control box, aim at the slot, and plugin to the end (see Picture 5). Note do not pull the cable, pull the plug.

Battery

Please use two 9 V alkaline battery.
Open the battery cover and install the battery according to the polarity sign in the battery box, If you are not going to use the detector for a long time, please remove the battery from the battery case (see Picture 6 below).

Panel (LCD and Key)

Power key
Press the power key to turn On/Off the detector.
LCD Display
Control buttons
MENU: Press MENU, LCD will Display VOLUME, SENS, DISC, Notch.
VOLUME: Press MENU to select VOLUME. Then press or to adjust the level (0-4) of VOLUME. The level will be displayed on the LCD.
SENS: Press MENU to select SENS. Then press or to adjust the level (2-8) of sensitivity. The level will be displayed on the LCD.
DISC: Discriminates the unwanted target by setting the numeric range. Press MENU to select DISC. Then press or to adjust the numeric range of discrimination. The number will be displayed on the LCD.
Notch: Eliminates the target you don’t want. Press MENU to select Notch. Then press or to select the target to be notched. The cursor around the selected target will flash. Press ENTER again, the target name inside the cursor will disappear.
PP: Pinpoints the location of the target accurately.
BACKLIGHT Key
Press the backlight key to turn on/off the backlight of the detector.
Memory
The detector will memorize all the settings before power is Off.

Indoor testing and use:

Press the power key to turn on detector.
Setting the operating mode: a. DISC: Press MENU to select DISC, then to set the DISC numeric value. If the DISC value is set to 00, the detector can detect all kinds of metal. In this case, when the detector finds a target, the cursor around the target name lights. Also, the detector sounds a tone, low for iron, 5 cents; medium for, pull tabs, 1cent; high for 10 cent or 25 cents. If you don’t want to find the target listed on the LCD, you can set the relative numeric range of DISC by pressing DISC then For example, the numeric target range for 5¢ is 11-25, you can simply press MENUS to select DISC, then set the DISC number to 28 by pressing or .In this case, the numeric range is beyond 5¢.The detector will not have response to it. Neither will the detector have response to iron. Because the target numeric range for iron is 0-10.
b. Notch: Press MENU to select Notch, then to select the target to be notched. The cursor around the selected target will flash. Press ENTER again, the target name inside the cursor will disappear. It means this target will be notched during the detection and the detector will have no reaction to the notched target. If you want to pick up the target notched, simply press ENTER again. Press the cursor will move from left or right. If ENTER is not pressed within about 3 seconds, the detector will enter standby state. NOTE: It is not recommended to notch all targets listed on the LCD. Because if you notch everything, you.
Press MENU to select SENS, then press to set the sensitivity.
Place the detector on a wooden or plastic table, then remove any watches, rings, or metal jewellery you are wearing.
Adjust the search coil so the flat part points towards the ceiling.
NOTE: Never test the detector on a floor inside a building. Most buildings have metal of some kind in the floor, which might interfere with the objects you’re testing or mask the signal completely.
Slowly sweep a sample of the material you want the detector to find (such as a gold ring or a coin) 2-3 inches or more above the face of the search coil. When the detector detects any metal, it sounds a tone and the cursor around the target name will light. Also, LCD displays the numeric value of target as well as the signal strength of it. Please note that the signal strength is only a reference.
NOTE: If you are using a coin, the detector will detect it more easily if you hold it, so a flat side is parallel with the flat side of the search coil. A sweep with the side of coin over search coil might cause false indication and unstable display of target.
PP (PINPOINT)
After you find a metal object, you can use PP to pinpoint the target. Press the PP key. Slowly move the search coil above the sound area. The detector sounds and the signal indicator on the LCD displays the level of signal. Then press PP button again to release the PP. Sweep the search coil again, keeping the same distance of search coil, sound disappears. Press PP button again, closer the search coil to the sound area, the detector sounds again. Repeat the above steps until the detector displays the stronger signal where the location of the target is.
NOTE: To find the exact location of target, you need to practise more times.

Target Indications

Numeric ranges of target:
IRON: 00-10
5¢: 11-25
P-TAB: 26-40
1¢: 41-60
10¢: 61-80
25¢: 81-99
NOTE: There are a wide variety of metals, and no target can be identified for certain until unearthed. This table is for general reference only.
Types of targets
IRON: It indicates that the target is probably iron.
5¢: It indicates that the target is probably 5¢ or a nickel. Some small gold rings might register within this range.
P-TAB: It indicates that the target is probably a pull tab of an aluminium can. Some small gold rings might register within this range.
1¢: It is indicated that the target is probably a coin of 1¢ortype of metal of zinc alloy.
Some medium sized gold rings might register within this category.
10¢: It indicates that the target might be a coin of 10¢. Some large rough gold items
might register within this category.
25¢: It indicates that the target is probably 25¢ or a silver coin.
Tones
The detector comes with three tones for different types of metal. But the built-in audio identification system sounds a unique tone for each of three categories of metal. This makes it easier to identify the metal being detected.
A low tone is for IRON, 5¢, same as for foil, bottle cap or nickels. A medium tone is for P-TAB, ZN, 1¢ (aluminium pull tabs, zinc, or copper items). A high tone is for 10¢,25¢,sameas for brass or silver items.

Outdoor testing and use

Press the power key to turn on the detector.
Follow the steps of 2 described in section of Indoor Testing and Use to set the operating mode.
Find an area on the ground outside where there is no metal.
Place a sample of the material you want the detector to find (such as a gold ring or a coin) on the ground.
Hold the search coil level to the ground about 1~2 inches above the surface, slowly move the search coil over the area where you placed the sample, sweeping the search coil in aside-to-side motion.

Search coil Sweeping Hints:
Never sweep the search coil as if it were a pendulum. Raising the search coil while sweeping or at the end of a sweep will cause false readings.

Sweep slowly, hurrying will cause you to miss targets.
It’s better you sweep the search coil from side to side in an arc line of 3 inches motion and keep the search coil parallel with the ground.
If the detector detects the item, it sounds a tone, and the cursor around the target name will light. Also, LCD displays the numeric range of target as well as the signal strength.
If the detector does not detect the item, make sure that the mode is set correctly for the type of metal you’re searching for. Also make sure that you’re moving the search coil correctly.
NOTES:

The detector responds with a signal when it detects most valuable metal objects. If a signal does not repeat after you sweep the search coil over the target a few times, the target is probably junk metal.
False signals can be caused by trashy ground, electrical interference, or large irregular piece of junk metal.
False signals are usually broken or non-repeatable.

Adjusting sensitivity

After you become familiar with how your detector works, it’s important to fine tune the sensitivity to get a good effect. Press MENU to select SENS. Then press or to increase or decrease the sensitivity. The level will be displayed on the LCD.

NOTE:
To detect the target deeply buried, you can adjust the SENS to a high level. But not to set the level of SENS to Max. position, or the detector will receive interference and false signal from broadcast antenna and other electronic lines. The detector will have unstable and irregular indications.

Using backlight:
In dark area, you can use backlight for better searching. Press backlight key to turn on the backlight.

NOTE: As the backlight consumes more power, we suggest you turn Off the backlight in normal environment.

Factors that affect the detecting

It’s difficult to have an accurate detecting result. Sometimes the detecting may be restricted by some factors:

The angle of the target buried in the soil.
The depth of the target.
The level of oxidization of the target.
The size of the target.
Electro-magnetic and electrical interference surrounding the target. In area of highly mineralized ground, or fertile ground, or wet sand, the detector will sound even if there is no metal. In this case, you can lower the sensitivity or increase the DISC numeric value. Meantime enhances the distance between the search coil and the ground. In area with trashy metal, you can set DISC numeric value to 50. In this case most nails and small pieces of iron will be eliminated.

Care and maintenance

Your metal detector is an example of superior design and craftsmanship. The following suggestions will help you care for your metal detector so you can enjoy it for years.

Handle the detector gently and carefully. Dropping it can damage circuit boards and cases and can cause the detector to work improperly.
Use the detector only in normal temperature environments. Temperature extremes can shorten the life of electronic devices, damage the cases of the detector.
Wipe the detector with a damp cloth occasionally to keep It looking new. Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the detector.
Keep the detector away from dust and dirt, which can cause premature wear of parts.

Warranty Conditions

A new product purchased in the Alza.cz sales network is guaranteed for 2 years. If you need repair or other services during the warranty period, contact the product seller directly, you must provide the original proof of purchase with the date of purchase.
The following are considered to be a conflict with the warranty conditions, for which the claimed claim may not be recognized:

Using the product for any purpose other than that for which the product is intended or failing to follow the instructions for maintenance, operation, and service of the product.
Damage to the product by a natural disaster, the intervention of an unauthorized person or mechanically through the fault of the buyer (e.g., during transport, cleaning by inappropriate means, etc.).
Natural wear and aging of consumables or components during use (such as batteries, etc.).
Exposure to adverse external influences, such as sunlight and other radiation or electromagnetic fields, fluid intrusion, object intrusion, mains overvoltage, electrostatic discharge voltage (including lightning), faulty supply or input voltage and inappropriate polarity of this voltage, chemical processes such as used power supplies, etc.
If anyone has made modifications, modifications, alterations to the design or adaptation to change or extend the functions of the product compared to the purchased design or use of non-original components.