Product Specification

Product Manual

Z - HF20 High-Frequency Portable Dental X-ray Unit

Dear users:

Welcome to choose our company's products. Our company adopts advanced high-frequency doubler and color touch display technology to create a new generation of high-frequency portable high-definition X-ray unit. The design is more human-centric, operation is more convenient, model conversion is more precise, and digital imaging is clearer.

Before use, please first pay attention to check the product model and production serial number. If there is any omission, deviation, or malfunction in the later use process, please contact the local dealer or our company, and inform the product models and production serial number.

Model: _________________________ Serial NO.: _________________________

• Before using this equipment, please read this manual carefully for all safety and operation hints.
• When using this equipment, please strictly adhere to the operational procedures, proper maintenance, and service.
• Please keep this manual and the attached warranty card for future reference and warranty use.
• If this equipment malfunctions during use, please contact the local dealer or our company. We will provide you with quality service to help you solve the problem in time.

1. Summary

1.1 Product Usage

The high-frequency dental X-ray machine is used in oral medical institutions for X-ray diagnosis of equipment used for lesions in the teeth.

1.2 Structural Components

The high-frequency dental X-ray machine is mainly composed of a high-frequency X-ray tube head, control circuit, LCD touch display system, and lithium battery power supply system.

1.3 Electrical Classification

The product is classified as Class B Type I equipment.

1.4 Product Features

• This device adopts a microcomputer chip processor and high-frequency inverter output for a more stable X-ray beam, generating a high-resolution imaging effect.
• This equipment adopts a microfocus X-ray generator, reducing equipment volume and weight, making it more convenient to carry.
• This equipment adopts a high-definition resolution color LCD touch display system for simple operation.
• This equipment design features a boot self-checking system with self-diagnosis function for easy maintenance and repair.
• This equipment is custom-made with a high-capacity lithium battery for durability.

1.5 Debug Instructions

1. Determine that the power supply voltage conforms to the requirements of the manufacturer of the power supply voltage of the charger.
2. In accordance with the requirements of the manufacturers and the procedure, test the product.
3. Provide customers with the product specification.

1.6 User Instructions

1. Users must comply with the instructions to use the device.
2. The user must comply with the product instructions to use the device. If injuries or equipment damage occur due to improper use or maintenance by the user, the manufacturer and distributor will not take any responsibility.
3. If device-related accidents occur, please contact the local health authorities, local dealers, and manufacturers.

1.7 Warning and Attention

Warning

This product is precision electronic medical equipment. Non-professional personnel are prohibited from operating the following items without permission:

• To open the product casing.
• Replacement of the lithium battery and other accessories.

Note

This product is precision electronic medical equipment. During use, pay attention to the following items:

• Please handle with care when moving the device.
• When in use, it may produce a small amount of ionizing radiation. Pregnant women and young children should take protective measures.
• It is prohibited to use the device while charging. If not in use for a long time, please ensure it is charged in a timely manner.

2. Technical Parameters

2.1 Power Parameter

• Input Power: 100-220VAC/50-60Hz/1.2A
• Output power: 22.2 VDC / 10 A
• Li-ion battery capacity: 2600mAh

2.2 X-ray Generator Parameters

• Input Power: 25.2VAC/2.0A
• Output power: 140 W
• Tube voltage / current: 70KV/2mA
• Operating frequency: 80KHz
• Exposure time: 0.1-2.0S

2.3 X-ray Tube Parameters

• Max. Operating tube voltage: 80KVp
• Filament features: 3±0.5V/2.5A
• Nominal focal spot value: 0.3mm
• Target angle: 12°
• Inherent filtration: 0.75mmAl

2.4 Machine Parameters

• Display mode: LCD color touch screen
• Packing size: 310X280X220mm
• Net weight: 1.5kg

2.5 Beam Limiter Parameters

• Output focal length: 110 mm
• Output radiation scope: ⌀5mm

3. Control System

3.1 Control System Description

1. Microprocessor control system.
2. Automatically selects exposure time based on tooth bit and mode, with a time range of 0.1 - 2.5 S.
3. Manually adjust exposure time, with adjustments in increments of 0.1 S.
4. Equipped with a three-block mode selection switch: children, adults, and RVG (digital sensing mode).
5. Manual switch can choose to extend and hand control wire.

3.2 Equipment Structure Description

Diagram: Two views of the DTS Portable high-frequency Oral X-ray machine. The left image shows the front view with the lens and a handle. The right image shows the back view with a screen and a charging port.

• ① Power [Power icon]
• ② Exposure Switch [Exposure icon]
• ③ Beam Limiter [Beam limiter icon]
• ④ LCD Touch Screen [Screen icon]
• ⑤ Charging Port [Charging port icon]
• ⑥ Wrist Strap [Wrist strap icon]

3.3 Operation Panel Description

Diagram: The operation panel interface displays status information and controls.

• Status Indicators: 70KV/2mA, READY, Battery level indicator [Battery level icon].
• Mode Selection: RVG [RVG icon], A/C [A/C icon].
• Exposure Time Display: Shows the set exposure time (e.g., 0.80S).
• Mode Display Icons: Icons representing different modes such as Adult [Adult icon], Child [Child icon], and tooth types (e.g., premolar [Premolar tooth icon], molar [Molar tooth icon]).
• Control Buttons: Up and Down arrows for adjustment, a circular button [Confirm/Action icon].

4. Directions for Use

4.1 Usage Method

1. Press the power switch button. The device enters the loading state, with a loading time of 1-2 seconds. Loading points are displayed dynamically during this period.
2. During the loading process, the equipment performs a self-checking function. If a failure occurs, a failure code is displayed (refer to section 4.5 for specific fault codes). If there are no errors, the system enters the normal state.
3. Once in the normal state, select the mode: Children, Adults, or RVG (digital sensing mode). After mode selection, choose the tooth area to be imaged (incisor, premolar, or molar). Refer to the table below for exposure times based on tooth area and model. (Note: Exposure times are for reference only and may need adjustment based on sensor and film sensitivity.)

   Teeth	Model	Time
   Maxillary	Adult	0.5-0.7s
   	Child	0.3-0.5s
   	RVG	0.2-0.3s
   Maxillary	Adult	0.8-1.0s
   	Child	0.5-0.75s
   	RVG	0.3-0.5s
   Mandible	Adult	1.2-1.5s
   	Child	0.8-1.0s
   	RVG	0.5-0.8S
   Mandible	Adult	0.4-0.6s
   	Child	0.2-0.4s
   	RVG	0.2-0.3s
   Mandible	Adult	0.6-0.8S
   	Child	0.4-0.6s
   	RVG	0.3-0.4s
   Mandible	Adult	1.0-1.3s
   	Child	0.8-1.0s
   	RVG	0.5-0.8s

4. After adjusting the pattern and tooth, proceed to the shooting Angle adjustment phase. Different teeth correspond to different angles, as detailed in the table below:

   Teeth	Angle
   Maxillary	1, 2	+42°
   	3	+45°
   	4, 5, 6	+30°
   	7, 8	+20°
   Mandible	1, 2	-15°
   	3	-20°
   	4, 5, 6	-10°
   	7, 8	-5°

5. After the mode, tooth position, and Angle adjustments are completed, the next step is to take the image. After pressing the exposure button, a buzzer will sound ('drop' hint), and the screen will show 'WAIT' simultaneously. The 'exposure indicator light' will flash red and blue. Exposure is then successful. If an error code appears during the exposure process, stop using the device immediately and refer to the error code to find the solution. The exposure successful display interface is shown below. Diagram: The screen displays 'WAIT' indicating the exposure process is underway.

6. After exposure, the device enters standby protection status for 20 seconds. After 20 seconds, it restores the last exposure settings. Before this, all keys are locked except for the power switch.

7. To charge, counterclockwise unscrew the beam limiter, plug in the charger power supply (Note: the port on the bottom left of the screen is the charging port). The charger light changes from red to green when charging is complete.

8. After shooting is completed, if no further filming is required, turn off the power and place the device back in its storage location.

4.2 Cleaning and Disinfection and Maintenance

1. Before cleaning, turn off the power switch. Use a small amount of mild decontamination materials and a soft cloth to remove stains from the product casing. Ensure no liquid flows into the equipment.
2. For parts that have come into contact with the patient due to accidents, use a clean disinfectant for cleaning and disinfection. Do not use disinfectants containing soluble solvents or corrosive solvents.
3. Pay attention to maintaining the charge of the lithium-ion batteries. If the device is not used for a long time or is under low battery conditions, please recharge it in time. The charger indicator lights change from red to green when charging is complete.

4.3 Transport and Storage Conditions

This equipment must not be stored in corrosive gas, chemical, flammable, or explosive environments during transport. During transport, avoid dragging, rolling, throwing, extrusion, or other strenuous activities.

• Ambient temperature: -20℃-55℃
• Relative humidity: 10%-60%
• Atmospheric pressure: 500Hpa-1060Hpa

4.4 Disposal of Scrap Equipment

This equipment is a high-frequency dental X-ray machine made of various materials, including iron, copper, lead, other metals, plastics, electronic components, insulating oil, and X-ray tubes. When the system is discarded, it must not be thrown into the natural environment. Disposal must comply with relevant laws and regulations, and be processed by a professional recycling company.

4.5 Fault Code Display

5. Product Warranty

5.1 Product Quality Assurance

The company promises to provide products manufactured by the original factory. This product has a free machine warranty for 1 year, and the charger has a 1-year warranty (Lithium battery is a consumable material and has no warranty). The company shall provide free warranty for product quality problems. The following factors are beyond the scope of warranty:

• Damage caused by improper use or maintenance by human factors and unstable supply voltage.
• Damage caused by natural disasters or irresistible factors.
• Damage caused by repair by non-professional staff without permission.

5.2 Product Warranty Card