Denjoy DY400-4 - User Manual

Rev. 01/08/21 VER SMS-GH04 20140828-EN
USER MANUAL
DY400-4 LED Curing Light
*The unit must be installed by a qualified engineer.
*Only for user by dental professionals.
*Read this operation manual carefully before installation or operation.

Summary

Introduction to Denjoy LED Curing Light

Key Features of the DY400-4 Curing Light

Advanced LED Technology and Longevity

Details advanced LED technology, operating time, and lamp life.

Audible Beep Sound Design

Describes the audible alert system for remaining curing time.

Cordless and Corded Operation

Explains the option for both cordless and corded operation.

Curing Program Profiles

Illustrates three different curing program profiles with light intensity over time.

Curing Time Settings

Lists available curing time settings for different device models.

Battery Charge Indicator

Explains the visual indicator for battery charge status.

High-Performance Battery System

Highlights the battery's capacity for continuous operation and stability.

Autoclavable Eye-Protection Cover

Mentions the autoclavable eye-protection cover for user safety.

Radiating Fan for Continuous Use

Notes the inclusion of a fan for continuous operation and heat prevention (for 7W model).

Integrated Light Intensity Meter

Describes the integrated meter for checking light intensity before use.

Automatic Sleeping Mode

Explains the auto power-saving mode activated after inactivity.

Components of the LED Curing Light System

Curing Program 1: Soft Start to Full Power

Identifies the first curing program setting.

Curing Program 2: Full Power

Identifies the second curing program setting.

Curing Program 3: Soft Start to Half Power

Identifies the third curing program setting.

Curing Time Control

Identifies the control for setting curing duration.

Beep Sound Indicator

Identifies the indicator for audible alerts.

Battery Status Indicator

Identifies the indicator for battery status.

Standard Included Accessories

Lists the items included with the device package.

Status Indicator Lights

Identifies the indicator lights on the device.

Intensity Test Hole

Identifies the specific hole for intensity testing.

Charger Connector Port

Identifies the port for connecting the charger.

Installation and Setup Guide

Initial Battery Charging Procedure

Instructions for charging the device before initial use.

Attaching the Eye-Protection Cover

Guidance on attaching the protective eye cover.

Installing the Light Guide

Instructions for properly attaching the light guide.

Connecting the Power Charger

Steps for connecting the device to a power source.

Operating the LED Curing Light

Powering On the Unit

Procedure for powering on the LED curing light.

Selecting a Curing Program

How to select the desired curing program.

Adjusting the Curing Timer

Instructions for adjusting the curing time.

Starting the Curing Process

Steps to begin the curing process.

Low Battery Indicator Response

How to interpret and respond to the low battery indicator.

Powering Off the Unit

Procedure for powering down the device.

Using the Built-in Intensity Meter

Guidance on using the intensity meter for optimal curing.

Safety Precautions for Use

General Safety Guidelines

Covers manual reading, energy handling, eye safety, photosensitivity, flammable environments, and storage.

Maintenance and Care Procedures

Device Maintenance and Cleaning

Details on unit care, cleaning the light guide, and accessory disinfection.

Charger and Accessory Usage Guidelines

Emphasizes using the original charger and proper care for accessories.

Troubleshooting Common Issues

Battery Not Charging Fully

Troubleshooting steps for when the battery does not charge fully.

Unit Fails to Power On

Solutions for the unit failing to turn on or the LCD screen not working.

Curing Program;Timer Adjustment Problems

Troubleshooting for problems with adjusting curing programs or times.

Poor Solidification Effect

Steps to resolve poor curing results.

Charging or Battery Sign Malfunctions

Diagnosing problems with the charging process or battery indicator.

Light Guide Insertion Difficulty

Solutions for difficulty inserting the light guide into the handpiece.

Environmental Conditions for Use and Storage

Recommended Operation Environment

Specifies the recommended temperature, humidity, and pressure for operation.

Guidelines for Storage Environment

Defines the conditions for storing the device safely.

Warranty Statement and Registration

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features
5. Safety Precautions
6. Warranty Statement
7. Electromagnetic Compatibility (EMC)

This document describes the Denjoy DY400-4 LED Curing Light, a device designed for polymerizing composite materials in dental applications. It is available in two types: DY400-4(5W) and DY400-4 (7W).

Function Description:

The Denjoy DY400-4 LED Curing Light is a highly efficient device that combines an LED tube, a micro-control electric circuit, and a rechargeable lithium battery. Its primary function is to polymerize composite materials used in dentistry. The device offers high efficiency, outstanding function, convenient operation, and longevity, making it a modern curing light for the global market.

Important Technical Specifications:

• Classification: Class I
• Power Source:
  • Power Charger Input: 100-240V, 50/60Hz
  • Power Charger Output Voltage: 5V DC
  • Power Charger Output Current: 1A
  • Internal Power Supply: Lithium battery
• Voltage: 3.7V
• Charging Time: Approximately 2.5 hours (at least 4 hours for the first charge).
• Continuous Operating Time: Average 40 minutes with a fully charged battery.
• LED Lamp Life: Designed for 10,000 charging cycles.
• LED Lamp Model: 5W and 7W
• Wavelength: 400-515nm (Blue light)
• Light Intensity (for reference, different meters may have different readings):
  • DY400-4(5W): 1000-1400 mW/cm²
  • DY400-4(7W): 2000-2400 mW/cm²
• Dimensions: W300×H120×D150mm
• Net Weight: Approximately 700g
• Operation Environment:
  • Ambient Temperature: 5°C ~ 40°C
  • Relative Humidity Range: ≤80%
  • Atmospheric Pressure: 70kPa ~ 106kPa
• Storage Environment:
  • Ambient Temperature: -40°C ~ 55°C
  • Relative Humidity Range: ≤80%
  • Atmospheric Pressure: 50kPa ~ 106kPa

Usage Features:

• Curing Programs:
  • Program 1: Full power till end.
  • Program 2: Soft start in the first 5 seconds to full power till end.
  • Program 3: Soft start in the first 5 seconds to half power till end.
• Curing Time Settings:
  • DY400-4(5W): 5/10/15/20/25/30/35/40 seconds.
  • DY400-4(7W): 5/10/15/20 seconds.
  • For soft start programs (Program 2 and 3), the curing time should start from 10 seconds. Users should follow the composite's original instructions.
• Cord/Cordless Interchangeable: The unit can be used cordlessly with its battery or directly with the power charger when the battery is depleted.
• Beep Sound Design: The device beeps every 5 seconds to remind the user of the remaining curing time.
• Battery Sign: A flashing battery icon indicates the need for charging (at least 2.5 hours). A full, non-flashing battery icon indicates a fully charged battery.
• Specially Made Battery: Designed to support continuous operation for 40 minutes and frequent use of longer curing times (35S and 40S). It ensures an inactive time of 200 hours, meaning it retains power for about three months when not in use.
• Eye-Protection Cover: Includes an autoclavable eye-protection cover tip.
• Radiating Fan (DY400-4 7W only): Equipped with a radiating fan to ensure continuous operation without overheating, guaranteeing performance stability.
• Built-in Intensity Meter: Located on the front of the charging base, it allows users to check the light intensity. By inserting the light guide into the test hole, LED indicators light up to show intensity. Five bright indicators signify at least 1000 mW/cm², while three bright indicators suggest lower intensity, prompting the user to charge the unit. The reading is a reference for adjusting curing time, and dentists should still follow composite manufacturers' curing procedures.
• Sleeping Mode: The handpiece enters sleeping mode after 2 minutes of inactivity to save power, shutting down all functions except battery, beep, and curing program signs on the LCD panel.
• Operation:
  • Turning On: Extended press of the power button.
  • Setting Curing Program: Short press the function switch to cycle through programs.
  • Setting Curing Timer: Press the "CYCLE" function switch to select curing time.
  • Starting/Interrupting Operation: Press the curing switch to start; press again to interrupt.
  • Low Battery Sign: A flashing low battery sign indicates the need for immediate charging or continuous use with the charger.
  • Turning Off: (Not explicitly stated, but implied by turning on, likely an extended press or automatic shutdown in sleeping mode).
• Light Guide Installation: Insert the light guide directly into the handpiece, ensuring it is fully inserted and fixed. It can be rotated. After use, it can be carefully pulled out and stored.
• Eye-Protection Cover Installation: Insert directly onto the front of the handpiece; it can be rotated when properly installed.
• Working Distance: The light source must aim at the fixed position, with a working distance within 3mm. The depth of polymerization should be at least 2mm. Curing layer by layer is recommended for thick materials.

Maintenance Features:

• No Private Dismantling: The unit should not be dismantled by unauthorized personnel, as this will damage it.
• Cleaning and Storage: For long periods of non-use, the unit should be cleaned and stored in its original packaging in a dry and clean cupboard to prevent drops.
• Light Guide Cleanliness: Ensure no resin or material sticks to the light guide. Clean immediately with a cloth if materials are present to maintain light output and curing performance.
• Sterilization: The light guide should be sterilized after each use. It can be safely autoclaved at 121°C, 1060hPa for 30 minutes.
• Accessory Disinfection: Other accessories close to patients (e.g., oval protector) should be scrubbed with pure water or antiseptic, following standard disinfection procedures.
• Charger Use: Only use the original charger to prevent damage to the battery, electric circuit, or the machine itself.

Safety Precautions:

• Read the usage manual carefully before operation.
• CAUTION: This curing unit produces high output curing energy. Do not place light directly on or toward unprotected gingival or skin.
• The light source must directly target the resin material for polymerization in clinical use. Improper radiation should be avoided.
• CAUTION: Do not look directly at the emitted light. Use suitable protective eyewear (blocking energy below 550nm) for the operator, assistant, and patient.
• CAUTION: Persons with a history of photosensitive reactions or those using photosensitizing drugs should not be exposed to light from this unit.
• CAUTION: Equipment is not suitable for use in the presence of flammable anesthetic mixtures with air or nitrous oxide.
• Check local AC power supply voltage before purchasing overseas.
• The curing light should be stored in its original packing box in a dry and clean cupboard to prevent drops.
• The device is not user-repairable and contains no user-serviceable parts. No modification of this equipment is allowed.
• Users must verify that the equipment functions safely and is in proper working condition before use.
• The manufacturer does not require preventive inspections by other persons.

Warranty Statement:

The instrument is guaranteed against original defects in materials and workmanship for 12 months from the date of purchase. Warranty is void if the product is repaired, modified, misused, disassembled, or if non-manufacturer parts are used, or if the serial number is defaced or missing. Accessories have a 6-month guarantee. Damaged or needed accessories can be purchased from the seller.

Electromagnetic Compatibility (EMC):

The DY400-4 is intended for use in electromagnetic environments specified in the manual. It complies with Group 1 RF emissions (CISPR 11), Class B RF emissions (CISPR 11), Class A harmonic emissions (IEC 61000-3-2), and voltage fluctuations/flicker emissions (IEC 61000-3-3). It is suitable for use in all establishments other than domestic, but can be used in domestic settings with a warning about potential radio interference or disruption of nearby equipment, suggesting mitigation measures like re-orientation or relocation. The manual provides guidance on immunity tests (Electrostatic discharge, Electrical fast transient/burst, Surge, Voltage dips/interruptions/variations, Power frequency magnetic fields, Conducted RF, Radiated RF) and recommended separation distances from portable and mobile RF communications equipment.

Denjoy DY400-4 Specifications

General

Brand	Denjoy
Model	DY400-4
Category	Dental equipment
Language	English