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JPT Seal-355-3-S - User Manual

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Shenzhen JPT Opto-electronics
Seal-355-3/5
Seal-355-3/5-S
User manual
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Summary

Laser Safety and Precautions

General Safety Guidelines

Details health and safety issues regarding safe installation and operation, including laser hazard information.

Laser Hazard Classification

Identifies the laser as Class IV UV, emphasizing potential damage and protective measures.

Component for Incorporation Safety

Product intended as a component for incorporation into a laser product, requiring additional safety features.

Product Specifications and Overview

Product Overview

Compares UV laser process to IR laser, highlighting UV laser benefits like low heat, atom-level processing, and applications.

Technical Parameters

Presents a detailed table of laser parameters including wavelength, power, pulse duration, frequency range, beam quality, and dimensions.

Installation and Dimensions

Installation Dimensions

Provides detailed diagrams showing laser installation dimensions with and without an expander, including interface port locations.

Installation Procedure

Details the steps for installing the laser head, connecting chiller water pipes, and connecting the power supply.

Control and Interface Configuration

GUI Interface Overview

Explains the function of the GUI control software for internal debugging and monitoring, noting parameters are pre-debugged.

Interface Explanation and Indicator Lights

Details the function of each parameter in the GUI and explains indicator light meanings.

Laser Control Methods

Control Mode

Explains laser emission control via Gate signal and parameter setting through PWM signal, including frequency and duty cycle adjustment.

Control Timing Signals

Describes the timing signals (GATE, TRIG) required for external control of laser output, frequency, and PWM.

Convert Card Connection Guide

Provides instructions for connecting the control card to the laser using DB15 connectors.

Specific Control Card Connections

Details connections for JCZ and SAMlight control cards, including specific pin assignments and short-circuiting for signals.

Laser Operation

Turn On Laser Procedure

Guides through the steps for turning on the laser, including connecting the chiller, setting temperature, and powering the system.

Turn Off Laser Procedure

Outlines the procedure for safely turning off the laser by stopping processing, switching off power, and turning off the chiller.

Operation Safety Precautions

Provides important safety advice for laser operation, recommending safety glasses and proper shutdown sequence.

Overview

The JPT Seal-355-3/5 and Seal-355-3/5-S are UV solid-state lasers designed for precision material processing. These lasers are utilized in applications such as micro-machining, micro-hole drilling, cutting, and scribing across various materials including metal, semiconductor materials, ceramic, glass, and polymer. The UV laser's short wavelength, small spot size, and intense energy allow for high-resolution processing, narrow line widths, and minimal thermal effects, resulting in high-quality marking and processing.

Function Description:

The JPT Seal-355-3/5 series UV lasers operate by directly breaking chemical bonds in the target material, which generates significantly less heat compared to IR lasers. This minimizes thermal effects and reduces contamination by turning processed material into atomic-level particles. The lasers are end-pumped solid-state devices with a stable and compact resonator design, contributing to high laser efficiency, good beam quality, and stability. They are designed for long lifetime and are maintenance-free. The internal LD (Laser Diode) design within the chamber reduces fiber interference. The new All-In-One (AIO) design is space-saving and offers enhanced anti-interference capabilities.

The Seal-355-3/5S, an upgraded version, features excellent beam quality (M² < 1.2) and spot characteristics (circularity > 90%). Its integrated structure combines optical and external driving circuits, providing strong anti-interference. The fully sealed structure prevents external dust entry, and the isolation from external water molecules provides strong anti-moisture characteristics, making the Seal series suitable for harsh industrial environments. A self-cleaning system for the intracavity further extends the service life. The Seal-355-3/5S series also boasts very short pulse widths (<10ns@60KHz) and excellent pulse stability (<3% RMS@60KHz) at medium and high repetition frequencies.

The laser emission and turn-off are controlled by a GATE signal. Laser frequency, power, and other parameters are set via a PWM (Pulse Width Modulation) signal, by adjusting the PWM frequency and duty cycle. The duty cycle is defined as the ratio of the high voltage time to the PWM period. For example, a PWM frequency of 50KHz (20µs period) with a 6µs high voltage time results in a 14µs low voltage time, giving a 3:10 duty cycle. In specific frequency conditions, a 1µs high voltage on the laser PWM signal corresponds to 100% ADJUST, which yields the largest power, smallest pulse width, and peak power for that frequency. Reducing the ADJUST value (increasing high voltage related pulse width) decreases laser power and increases pulse width. The PWM signal, through frequency and duty cycle adjustments, allows control over laser pulse frequency, power, and pulse width.

Important Technical Specifications:

The Seal-355-3/5 series includes several models: Seal-355-3 (3W UV-AIO), Seal-355-5 (5W UV-AIO), Seal-355-3-S (3W UV short pulse width), and Seal-355-5-S (5W UV short pulse width).

  • Wavelength: All models operate at 355nm.
  • Mean Power:
    • Seal-355-3: >3W@30kHz
    • Seal-355-5: >5W@40kHz
    • Seal-355-3-S: >3W@40kHz
    • Seal-355-5-S: >5W@60kHz
  • Pulse Duration:
    • Seal-355-3: <15ns@30kHz
    • Seal-355-5: <15ns@40kHz
    • Seal-355-3-S: <10ns@40kHz
    • Seal-355-5-S: <10ns@60kHz
  • Frequency Range:
    • Seal-355-3/5: 20KHz-2000KHz
    • Seal-355-3/5-S: 30KHz-200KHz
  • Spatial Mode: TEM00
  • Beam Quality (M²): M²≤1.2
  • Beam Circularity: >90%
  • Beam Full Divergence Angle: <2mrad (measured from the window film, not through the beam expander).
  • Beam Diameter: 0.7±0.1mm (without expander, measured at the laser output window film).
  • Polarization Ratio: >100:1
  • Polarization Orientation: Horizontal
  • Average Power Stability: RMS≤3%@24hr
  • Pulse-to-Pulse Stability: RMS≤3%@30KHz
  • Operating Temperature & RH: 10℃~40℃; <80%
  • Storage Temperature & RH: -15℃~50℃; <90%
  • Cooling Mode: Water-cooling
  • Electricity Requirement: DC12V
  • Average Power Consumption:
    • Seal-355-3/3-S: 300W
    • Seal-355-5/5-S: 350W
  • Three-Dimensional Size (LWH): 302mm180mm114mm
  • Weight: 9.26kg

Usage Features:

The laser is intended as a component for incorporation into a larger laser product, requiring additional safety features to comply with IEC/EN60825-1 and 21 CFR1040.10. It is classified as a Class IV invisible laser, meaning direct, reflected, or scattered laser radiation can cause severe damage to eyes and human tissue. Laser safety glasses must be worn during operation. Flammable or explosive materials, as well as black paper, cloth, or leather, should not be in the light path. Even the pilot beam emits weak UV laser radiation.

The device features a GUI (Graphical User Interface) for internal debugging and monitoring, though all parameters are pre-debugged before shipment, so customer interaction with the software is generally not required. External control signals are used for operation.

Installation:

  1. Securely fix the laser head to the supporting structure using screws.
  2. Connect the chiller water pipes to the laser, ensuring no leakage.
  3. Connect the power supply and fasten it securely.
  4. Connect the DB15 cable to the laser and the control card, ensuring a tight connection.
  5. An optional 10x beam expander and installation sleeve are provided. If not needed, these can be disassembled by removing four M4 screws.

Operation:

  1. Connect the chiller to the laser water connector and lock it tightly.
  2. Turn on the chiller and set the temperature to 25°C, waiting until it stabilizes at 25±0.5°C.
  3. Inspect the laser output port for any particles or stickers and remove them if present.
  4. Ensure the laser controller and laser head are properly connected, and that the marking system and laser system are connected correctly.
  5. Switch on the 12V DC power supply and turn on the key switch. The control card must be connected and powered to prevent laser damage.
  6. Confirm there are no abnormal indicators and wait for the laser to stabilize before marking.
  7. If the laser temperature is abnormal, the protection system will lock the laser. Check if the chiller is running and if the power cable is properly connected.

Turn Off Procedure:

  1. Stop the processing.
  2. Turn off the key switch.
  3. Turn off the power supply.
  4. Turn off the chiller.

Safety Indicators:

  • Red light: Indicates a temperature alarm (abnormal LD or water temperature). Power should be cut off immediately, and the issue investigated.
  • Yellow light: Indicates the laser is working well.
  • Green light: Indicates the LD and laser are working well.

Maintenance Features:

The laser enclosure is not designed for customer access or maintenance. All maintenance and service, including upgrades, can only be performed at the JPT factory or on-site with technical support. Opening the laser enclosure without JPT factory permission will void the warranty. The Seal-355-3/5S models incorporate a self-cleaning system for the intracavity to prolong service life and are designed with a fully sealed structure to prevent dust and moisture ingress, enhancing reliability in harsh industrial environments.

JPT Seal-355-3-S Specifications

General IconGeneral
BrandJPT
ModelSeal-355-3-S
CategoryMeasuring Instruments
LanguageEnglish

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