1. Introdución
This manual provides detailed instructions for the assembly, operation, and maintenance of your YELLOW JACKET ASM-55 Metal Detector. Please read this manual thoroughly before using the device to ensure proper function and to maximize your detection experience. This metal detector is designed for both professional and recreational use, offering high accuracy and multiple detection modes.
2. Produto rematadoview
2.1 Compoñentes
The YELLOW JACKET ASM-55 Metal Detector package includes the following main components:
- Unidade de control principal con pantalla LCD
- Adjustable Stem (20 to 48 inches)
- Bobina de busca impermeable de 11 polgadas
- Armrest with Strap
- Auriculares supraaurais
- Bolsa de transporte portátil
- Practical Edge Shovel
- Dúas baterías de 9 V

Figura 2.1: Máisview of the YELLOW JACKET ASM-55 Metal Detector and its included accessories.
2.2 Características principais
- High Accuracy Detection: Equipped with an upgraded DSP chip for enhanced detection stability and accuracy.
- 5 modos de busca: All Metal, Disc, Memory, Jewelry, and Pinpointer modes for versatile target identification.
- Pantalla LCD grande: Clear, backlit display for easy target identification, depth indication, and mode selection, even in low light.
- Lonxitude axustable: Stem adjusts from 20 to 48 inches to accommodate various user heights and preferences.
- Bobina de busca impermeable: The 11-inch search coil is IP65 rated, allowing for detection in shallow water.
- Deseño ergonómico: Lightweight construction with comfortable silicone keys and elbow support for extended use.
- Memoria incorporada: Retains ON/OFF settings, eliminating the need to reset the detector after each power cycle.

Figure 2.2: Comprehensive functionality of the ASM-55 Metal Detector.
3. Configuración e montaxe
Follow these steps to assemble your YELLOW JACKET ASM-55 Metal Detector:
- Conecte a bobina de busca: Connect the 11-inch search coil to the lower stem using the provided bolt and nut. Ensure it is securely fastened but allows for slight angle adjustment.
- Connect the Stems: Insert the lower stem into the middle stem, and then connect the middle stem to the upper stem (which has the control unit and armrest). Adjust the length to your preference by twisting and locking the adjustable sections. The length can be adjusted from 20 to 48 inches.
- Montar a unidade de control: The control unit is pre-attached to the upper stem. Ensure it is oriented correctly for easy viewing e acceso aos controis.
- Connect the Coil Cable: Carefully wrap the search coil cable around the stem, leaving enough slack for coil movement. Plug the cable connector into the port on the control unit. Ensure the connection is firm.
- Instalar baterías: Open the battery compartment on the control unit. Insert two 9V batteries, observing the correct polarity. Close the compartment securely.
- Adjust Armrest and Strap: Position the armrest for comfort and secure your forearm with the strap to reduce fatigue during use.

Figure 3.1: Assembly diagram of the metal detector.
4. Instrucións de funcionamento
4.1 Encendido/apagado
Preme o POTENCIA button (usually marked with a power symbol) to turn the detector on or off. The device retains its last settings due to the built-in memory function.
Pantalla LCD 4.2view

Figura 4.1: detallada view da pantalla LCD e dos botóns de control.
The LCD display provides visual information about detected targets, current settings, and battery status. Key indicators include:
- Target ID Cursor: Indicates the probable type of metal detected.
- Digital ID / P-P Cursor: Provides a numerical value for target identification.
- Coin Depth Cursor: Estimates the depth of the detected object.
- Sens Cursor: Mostra o nivel de sensibilidade actual.
- Mode Cursor: Displays the active detection mode.
4.3 Modos de detección
The ASM-55 offers five distinct detection modes. Press the MODO botón para percorrelos:
- All Metal Mode (A-M): Detects all types of metal. This mode is ideal for general searching when you do not want to discriminate against any metal type.
- Modo de discriminación (DISC): Allows you to eliminate unwanted metal types (e.g., iron) from detection. Use the '+' and '-' buttons to adjust the discrimination level.
- Modo de memoria: This mode allows the detector to remember a specific target type and only search for that type of metal.
- Modo de xoiería: Optimized for finding jewelry, typically filtering out iron and other common trash metals.
- Pinpointer Mode (PP): Used to precisely locate the exact position of a detected target. Press and hold the PP botón para activar.

Figure 4.2: The five search modes available on the ASM-55 Metal Detector.
4.4 Axuste da sensibilidade
Preme o SENS button to adjust the detector's sensitivity. Higher sensitivity increases detection depth but may also increase false signals in mineralized ground or areas with electromagnetic interference. Adjust sensitivity using the '+' and '-' buttons.
4.5 Control de volume
The detector features three volume levels. Use the speaker button to cycle through the volume settings to suit your environment and preference. Headphones are included for private listening.
4.6 Target Indication and Depth

Figure 4.3: The 11-inch waterproof search coil and adjustable stem.
When a target is detected, the LCD will display a Target ID Cursor and a Digital ID value, indicating the probable type of metal. The Coin Depth Cursor will provide an estimated depth. The 11-inch search coil allows for detection up to 12 inches deep for a quarter-sized coin.

Figure 4.4: Detection depth capability of the ASM-55.
5. Mantemento
- Limpeza: Despois de cada uso, limpe o detector con adamp cloth. Avoid using abrasive cleaners or solvents. The search coil can be rinsed with fresh water due to its waterproof design.
- Almacenamento: Store the detector in a cool, dry place when not in use. If storing for an extended period, remove the batteries to prevent leakage.
- Substitución da batería: Replace batteries when the low battery indicator appears on the LCD. Always use fresh 9V batteries.
- Coidado do cable: Avoid sharp bends or kinks in the search coil cable to prevent internal damage.
6 Solución de problemas
| Problema | Causa posible | Solución |
|---|---|---|
| Sen poder | Dead batteries; Incorrect battery installation | Substitúa as pilas; asegúrese de que a polaridade sexa correcta |
| Constant false signals | High sensitivity; Electromagnetic interference; Mineralized ground | Reduce sensitivity; Move away from power lines/electronics; Use DISC mode |
| Sen detección | Search coil not connected; Incorrect mode; Low sensitivity | Check coil cable connection; Switch to ALL METAL mode; Increase sensitivity |
| Inaccurate target ID | Target too deep; Multiple targets; Interference | Sweep slower; Use Pinpointer mode for precise location; Adjust sensitivity |
7. Especificacións
- Marca: CHAQUETA AMARELA
- Modelo: ASM-55
- Cor: Amarelo
- Material: Plástico
- Fonte de enerxía: Battery Powered (2 x 9V batteries, not included for initial purchase but often bundled)
- Peso do artigo: 2.9 quilogramos (6.38 libras)
- Dimensións do produto: 11"L x 6"W x 17"H (packaged)
- Lonxitude axustable: Yes, from 20 inches to 48 inches
- Clasificación de protección internacional: IP65 (para a bobina de busca)
- Modos de detección: 5 (All Metal, Disc, Memory, Jewelry, Pinpointer)
- Tamaño da bobina de busca: 11 polgadas
- Max Detection Depth: Approximately 12 inches for a quarter-sized coin
8. Garantía e soporte
For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official YELLOW JACKET websitio. Garda o comprobante de compra para calquera reclamación de garantía.





