Smart Sensor AR924+ - User Manual

Version：SZ924+-1-00
3. Parts and assembly diagram
3.1 Parts
While purchasing, check the package
contents carefully:
<01>Upper stem*1PCS
<02>Main panel*1PCS
<03>3.7 V li-battery*1PCS
<04>Washer(M5.0)*4PCS
<05>Screw B (M5.0*14PM)*2PCS
<06>Screw A(M5.0*33PM)*2PCS
<07>Lead wire*1PCS
<08>Extension Aluminum tube*1PCS
<09>Clip*3PCS
<10>Main panel metal bracket*1PCS
<11>Conection bracket*1PCS
<12>Nut bracket*1PCS
<13> *2PCS
<14>Nylon bolt
<15>Nylon screw
<16>Connecting rod *1PCS
<17>Plastic screw
<18>Plastic bolt*1PCS
<19>Plastic wrench*1PCS
<20>Searh coil*1pcs
If any parts miss before purchase, please
consult your dealer.
（）Nut M5.0
1.Introduction
Thank you for choosing Smart Sensor Metal
Detector. This unit adopt latest electronic technology
provide with ground balance function which can
eliminate the effect caused by Mineralization
reaction besides the metal type mode can identify
that the detected subject is ferrous or non-ferrous
metal, enhance the effectively detect depth &
accuracy. It is easy to operate with big probing
depth accuracy appointed high resolution
features. In order to take full advantage &
functions of metal detection, please
read carefully before using this manual.
1.1 Application
Except for the military purpose, This unit
also suitable for following fields:
Police quick searching
Metal object detection in material, fuel,
food stuff
Metal object detection on mail, baggage
Hunting buried pipe, cable
Relic & Mineral hunting
Cache treasure & mineral hunting
1.2 Mineralization reaction
The kinds of the minerals which consist of soil
make unit send signal. When using old type
metal detector, the signal changed with distance
between sensor and floor, if use sensor scan the
rough floor, the signal change a lot. on the complex
soil place, the signal caused by soil is much bigger
than metal, this phenomenon named
ineralization reaction
“
”,
”.
、、
can
M“
6.1 Ground balance calibration:
There are two calibration methods.
6.1. 1.Auto calibration:
The auto calibration is just to turn the unit on.
When Calibrate by this method, Fan-shaped
stripe , calibration , and star shape will
on LCD.display
2.Assembly diagram
10-15cm
6. Operations
The operation is same as Sapper detect
landmine, when detect, keep 10-15cm from the
floor and canning in the horizontal level to avoid
lowering the actual detect depth.
figure 4
5. Specification
Max.
Detection depth
1.5m (50CMx50CMx1.2CM
aluminium board )
Detection mode
Ground balance/
discrimination
Signal frequency
7.1KHz
Power supply
3.7V(lithium battery)
charge voltage
DC 5V
Low battery indication
√
√
rechargeable battery
Product net weight
Product size
1.77 kg
30x30x123.5 cm
Detectable indication
Audio( 75dB) and
light indication
≥
Metal Detector
Instruction Manual
Model: AR924
+
16 Connecting rod
14
Nylon bolt
08 Extension Aluminum tube
12 Nut bracket
11 Connection bracket
02 Main panel
20 Search coil
19 Platic wrench
18 Plastic bolt
09 Clip
17 Plastic screw
13 Nut
06 Screw A
05 Screw B
10 Metal bracket
01 Upper stem
07 Leak wire
04 Washer
04 Washer
03 3.7 V
li-battery
15 Nylon screw
4.
①
②
③
④
Features
Torch light switch
Calibration button
Power OFF/ON
Backlight
METAL
FERROUS METAL NONFERROUS METAL
SENSITIVITY
Metal type
Normal scan
Calibration
Light ON
Light OFF
Backlight
Power OFF/ON
AR924
+
Underground Metal Detector
Adjust
Charger
I
0
⑤
⑦
①
⑥
⑧
②
③④
DC 5V IN
Low Med High
Voice adjust
Earphone
⑩⑩
11
⑨
⑤
⑥
⑦
⑧
⑨
Normal scan and metal type mode selection
Sensitivity adjustment button
LCD
Earphone jack
Charging port
Voice adjustment switch
Charging indication
⑩
⑩
⑩
11

Summary

Introduction

Application Areas

Lists fields like police search, material detection, mail/baggage, hunting, relic, cache.

Mineralization Reaction Explained

Explains how soil signals can mask metal signals, especially on rough floors.

Parts and Assembly

Included Parts List

Lists all parts included in the package, e.g., stems, panel, battery, screws, coils.

Specifications

Operations and Usage

Ground Balance Calibration

Details both automatic and manual calibration methods for optimal performance.

Mineralization Reaction Elimination

Provides methods for eliminating mineralization interference using auto or manual adjustments.

Target Identification and Rejection

Explains how to identify specific metal types and reject unwanted targets.

Metal Detection Modes

Covers Metal Scan mode for sensitivity and Metal Type mode for discrimination.

Light Functions

Torch Light Operation

Turn on the torch light by sliding the switch to ON position.

Backlight Activation

Press backlight key to activate or turn off the backlight for dark environments.

Battery and Charging

Battery Replacement Indicator

Replace batteries when the LCD displays icon "" to ensure sensitivity and precise detection.

Charging Process

Connect adapter, monitor charging light (red/green), and check over-temperature protection.

Battery Installation

Open compartment, insert 3.7V li-battery, and close the compartment door.

Smart Sensor AR924+ Specifications

General

Brand	Smart Sensor
Model	AR924+
Category	Metal Detector
Language	English