Savillex HPX-200 PFA-Coated High-Temperature Graphite Heating Plate

Overview

The Savillex HPX-200 PFA-Coated High-Temperature Graphite Heating Plate is engineered for ultra-trace analytical laboratories requiring inert, contamination-free thermal platforms for aggressive sample preparation workflows. Unlike conventional stainless-steel or ceramic heating plates, the HPX-200 integrates a monolithic semiconductor-grade graphite heating core—selected for its exceptional thermal mass, rapid heat transfer, and low thermal lag—fully encapsulated in high-purity perfluoroalkoxy (PFA) fluoropolymer. This architecture eliminates metal leaching, minimizes surface adsorption of analytes (e.g., As, Hg, Pb, REEs), and withstands prolonged exposure to concentrated HF, HNO₃, HClO₄, and aqua regia at elevated temperatures. Designed explicitly for geochemical, nuclear, environmental, and semiconductor wafer metrology labs, the HPX-200 supports closed-vessel digestion (e.g., EPA Method 3052), open-beaker evaporation (e.g., ASTM D5681), and low-background acid leaching protocols where blank levels must remain below sub-pg/mL detection thresholds.

Key Features

• Full-surface PFA coating applied via proprietary electrostatic spray process ensuring pinhole-free coverage and adhesion stability up to 240 °C
• Graphite substrate machined to ±0.1 mm flatness tolerance, enabling uniform thermal conduction across the entire 415 mm × 212 mm active zone
• Digital PID temperature controller with 0.1 °C resolution, programmable ramp/soak profiles, and real-time deviation monitoring
• Integrated PTFE thermal guard ring surrounding the heating zone—mechanically isolates hot surfaces from operator contact and prevents condensate ingress into housing seams
• Double-insulated housing with grounded chassis, overtemperature cutoff (260 °C mechanical fail-safe), and reinforced cable strain relief meeting IEC 61000-6-3 EMC requirements
• TÜV SÜD certified to EN 61000-1-2 (EMC), EN 61010-1 (safety), and CE-marked for use in EU-based GLP-compliant facilities

Sample Compatibility & Compliance

The HPX-200 accommodates standard digestion vessels—including Savillex® Teflon® AF, PFA, and quartz beakers—as well as custom geometries up to 100 mL volume per position. Its non-reactive surface ensures compatibility with all USP , EPA, ISO/IEC 17025, and ASTM E2937-compliant trace-metal methodologies. The unit meets the material purity requirements outlined in ASTM D5681 (evaporation residue analysis) and supports audit-ready documentation for FDA 21 CFR Part 11–compliant data integrity when paired with validated LIMS interfaces. No metallic components are exposed to the sample environment; even fasteners and internal brackets are PFA-coated or molded PTFE.

Software & Data Management

While the HPX-200 operates as a standalone instrument, its controller outputs analog 0–10 V and RS-485 Modbus RTU signals for integration into centralized lab automation systems. Optional firmware upgrade enables time-stamped temperature logging (±0.5 °C accuracy) with CSV export via USB-C port—supporting ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate) for GMP/GLP environments. Audit trails record setpoint changes, hold durations, and fault events with user ID tagging when connected to enterprise authentication servers.

Applications

• Acid digestion of geological matrices (silicates, carbonates, soils) prior to ICP-MS or HR-ICP-MS analysis
• Low-blank evaporation of seawater, groundwater, and biological digests for isotopic ratio determination (e.g., Sr, Nd, Hf)
• Pre-concentration of ultra-dilute radionuclides (²³⁹Pu, ²⁴¹Am) in environmental monitoring programs
• Thermal conditioning of semiconductor-grade reagents (e.g., sub-boiling HNO₃ purification)
• Controlled drying of reference materials under Class 100 cleanroom conditions

FAQ

Is the HPX-200 compatible with hydrofluoric acid (HF) digestion?

Yes—the PFA coating exhibits full chemical resistance to ≥49% HF at temperatures up to 200 °C for continuous operation; recommended maximum dwell time at 240 °C with HF is limited to 2 hours per cycle.
Can the unit be calibrated in-house using NIST-traceable standards?

Yes—Savillex provides a calibration certificate (NIST-traceable Pt100 probe) and SOP-compliant field verification protocol for annual recalibration without disassembly.
Does the HPX-200 support multi-step temperature programming?

Yes—the controller supports up to 5 independent ramp/soak segments with user-defined rate limits (0.1–20 °C/min) and automatic transition logic.
What maintenance is required beyond routine cleaning?

No scheduled maintenance is required; PFA surface cleaning with 1% NH₄OH followed by ultrapure water rinse preserves performance for >10 years under typical usage.
Is remote monitoring available via Ethernet or Wi-Fi?

Not natively—but RS-485 output enables connection to industrial gateways (e.g., Siemens Desigo CC, Ignition SCADA) for web-based status dashboards and alarm notification.