GuanCe GCDRD-1500 Computer-Controlled Dielectric Weak Point Tester
| Brand | GuanCe |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | GCDRD-1500 |
| Pricing | Upon Request |
Overview
The GuanCe GCDRD-1500 Computer-Controlled Dielectric Weak Point Tester is a precision instrument engineered for quantitative assessment of localized dielectric integrity in flexible polymeric insulating films. It operates on the principle of controlled DC voltage ramping (0–10 kV, ±1% stability) across a moving film specimen, detecting and localizing instantaneous breakdown events—termed “dielectric weak points”—under standardized test conditions per GB/T 13542.2–2009 and IEC 60674-2:1988. Unlike static puncture testers, the GCDRD-1500 implements dynamic scanning: the film traverses at a user-defined linear speed (2–5 m/min) between two electrodes—a grounded copper roller (lower electrode) and an elastomeric conductive rubber roller (upper electrode)—enabling spatially resolved mapping of defect density per unit area (points/m²). This methodology supports statistical quality assurance in high-volume production of electrical insulation films, including polyurethane, polypropylene, polyester, and fluoropolymer-based substrates.
Key Features
- Programmable DC voltage ramping from 0 to 10 kV with real-time regulation and automatic voltage recovery (<0.1 s) post-breakdown
- Motor-driven film transport system with adjustable linear velocity (2–5 m/min) and independent tension control for both unwind and rewind stations
- Integrated electrode assembly featuring a precision-ground copper drum (grounded) and compliant conductive rubber roller (high-surface-area contact)
- Real-time acquisition of voltage, current, and breakdown event timestamps via high-speed analog-to-digital conversion circuitry
- Automated spatial registration: linear displacement encoder synchronizes breakdown detection with film position, enabling calculation of inter-defect spacing and areal density (points/m²)
- Intuitive Windows-based software interface supporting multiple test modes—fixed test length, fixed test area, or fixed duration—with configurable pass/fail thresholds
- Self-calibrating zero-return function and auto-reset after each test cycle to ensure measurement repeatability
Sample Compatibility & Compliance
The GCDRD-1500 is validated for use with roll-form dielectric films ≥25 µm thick and ≤200 mm wide, including thermoplastic and thermoset polymer films used in capacitor manufacturing, motor insulation, and flexible printed circuit board (FPCB) substrates. Test methodology conforms to the essential requirements of GB/T 13542.2–2009 (equivalent to IEC 60674-2:1988), ensuring alignment with internationally recognized procedures for electrical weakness evaluation. While not certified to ISO/IEC 17025, the system’s architecture supports GLP-compliant documentation through audit-trail-enabled software logging, timestamped raw data export (CSV, XML), and user-access-level permissions—facilitating integration into regulated environments where traceability and data integrity are required per FDA 21 CFR Part 11 principles.
Software & Data Management
The proprietary control software provides full bidirectional communication with hardware subsystems, enabling closed-loop voltage control, synchronized motion triggering, and real-time waveform visualization. Each test session generates a structured dataset containing voltage vs. time, current vs. time, breakdown coordinates (mm from origin), and cumulative defect count. Data is stored in a relational database with metadata tagging (operator ID, batch number, film lot, environmental conditions). Export options include PDF test reports with embedded plots, CSV for statistical process control (SPC) analysis, and XML for LIMS integration. All data modifications are logged with user ID and timestamp; electronic signatures and password-protected configuration changes support compliance with internal QA protocols.
Applications
- Quality screening of capacitor-grade metallized polypropylene (PP) and polyethylene terephthalate (PET) films during incoming inspection
- Process validation of corona treatment or plasma surface modification efficacy on polyurethane insulation films
- Routine monitoring of extrusion line consistency by tracking weak point density trends across successive production rolls
- Failure analysis support: correlating spatial breakdown patterns with upstream defects (e.g., gel particles, thickness variation, contamination)
- Development testing of novel nanocomposite dielectric films where dispersion homogeneity directly influences breakdown distribution
FAQ
What standards does the GCDRD-1500 comply with?
It implements test methods specified in GB/T 13542.2–2009 and IEC 60674-2:1988 for dielectric weak point detection in electrical insulating films.
Can the instrument measure breakdown location along the film length?
Yes—integrated linear encoders record exact millimeter-position coordinates for every detected weak point, enabling inter-defect distance analysis and spatial trend mapping.
Is the software compatible with laboratory information management systems (LIMS)?
Raw data exports in CSV and XML formats support seamless ingestion into third-party LIMS platforms; structured metadata fields align with ASTM E1482 and ISO/IEC 17025 data exchange conventions.
Does the system require external calibration services?
Voltage output is factory-trimmed against NIST-traceable reference standards; users perform periodic verification using calibrated HV dividers—no annual third-party calibration certificate is mandatory unless mandated by internal QA policy.
What film widths and thicknesses are supported?
Standard configuration accommodates films up to 200 mm wide and ≥25 µm thick; custom electrode assemblies are available for wider or thinner specimens upon request.
