Harry Gestigkeit PZ28-3TD High-Temperature Titanium Heating Plate

Overview

The Harry Gestigkeit PZ28-3TD is a high-precision, programmable high-temperature heating plate engineered for demanding laboratory and industrial thermal processing applications. Designed around a solid titanium heating surface (280 × 200 mm), it delivers rapid thermal ramping—reaching 600 °C in under 20 minutes—and maintains exceptional spatial uniformity (±2 K across a 230 × 160 mm active zone) via optimized resistive heating architecture and multi-layer thermal insulation. Unlike conventional hotplates or oil/water baths, the PZ28-3TD operates as a dry, contact-based conductive heater with no fluid medium, eliminating contamination risk, evaporation loss, and maintenance associated with liquid thermostats. Its stainless steel housing, perimeter heat-shielding, and thermally decoupled lid (maintaining a fixed 26 mm gap above the heating surface) ensure safe operation on heat-sensitive workbenches while preserving thermal accuracy and repeatability. The system is fundamentally designed for open-air or semi-enclosed thermal treatment of metal substrates, ceramic wafers, calibration standards, and high-temperature sample holders requiring stable, localized, and controllable heating without convective interference.

Key Features

• Titanium heating surface (280 × 200 mm) offering superior corrosion resistance, mechanical stability, and long-term thermal consistency up to 600 °C
• Precision-engineered uniform heating zone (230 × 160 mm) validated to ±2 K at maximum operating temperature
• Integrated dual-mode temperature controller: analog PID regulator + digital microprocessor-based programmable unit supporting up to 5-stage thermal profiles
• Programmable logic enables full time/temperature sequencing—including ramp, soak, and controlled cooldown phases—with 3 stored protocols and password-protected parameter editing
• Thermally insulated lid with fixed 26 mm standoff height ensures repeatable thermal boundary conditions and minimizes ambient heat loss
• Stainless steel enclosure with peripheral thermal shielding maintains external surface temperatures below 50 °C during continuous 600 °C operation
• Real-time dual-display interface showing actual temperature and remaining time per program segment; audible end-of-cycle alert
• Full power modulation (1–100%) via analog potentiometer and digital setpoint control; hardware-enforced temperature limit safeguards prevent overheating
• EEPROM-backed memory retains settings after power interruption; modular cable connections support field calibration and service diagnostics

Sample Compatibility & Compliance

The PZ28-3TD accommodates flat, rigid samples up to 280 × 200 mm and ≤25 mm in thickness, including metallic coupons, sintered ceramics, quartz calibration plates, and high-temperature sensor test fixtures. Its dry-heating design eliminates cross-contamination risks inherent in liquid bath systems—critical for trace-metal analysis, semiconductor pre-bake validation, and ASTM E220-compliant thermocouple calibration workflows. The device conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity requirements), and its electrical safety design meets EN 61010-1:2019 for laboratory equipment. While not intrinsically rated for hazardous locations, its robust thermal containment and redundant overtemperature cutoffs support integration into ISO/IEC 17025-accredited calibration labs and GMP-aligned process validation environments where documented thermal stability and audit-ready control logs are required.

Software & Data Management

The PZ28-3TD’s programmable controller provides local, stand-alone thermal protocol execution without PC dependency. All operational parameters—including ramp rates, dwell times, target temperatures, and user-defined stage skips—are configured directly via front-panel rotary encoders and LED display. Each of the three stored programs supports independent access passwords, ensuring procedural integrity in shared-lab or regulated settings. The controller records real-time temperature data at 1-second intervals during active runs and stores the last 10 complete cycle logs internally (accessible via menu navigation). While no native USB or Ethernet interface is included, analog output (0–10 V or 4–20 mA) is available for connection to external DAQ systems or SCADA platforms. For GLP/GMP compliance, users may integrate optional third-party data loggers compliant with FDA 21 CFR Part 11 for electronic signature, audit trail, and long-term archival of thermal validation records.

Applications

• High-temperature calibration of thermocouples (Types K, S, R, B) and RTDs per ASTM E220 and ISO 5725
• Thermal stress testing of thin-film coatings, MEMS devices, and printed circuit board (PCB) substrates
• Pre-bake and post-deposition annealing steps in materials science research and thin-film deposition workflows
• Controlled drying and solvent removal from high-boiling-point solvents (e.g., NMP, DMSO) in pharmaceutical formulation development
• Reference temperature source for IR camera validation and blackbody comparator setups
• Thermal aging studies of polymers, composites, and battery electrode materials under inert atmosphere gloveboxes (lid-compatible configuration)
• Process qualification of solder paste reflow profiles and thermal interface material (TIM) curing behavior

FAQ

What is the maximum continuous operating temperature, and is derating required for extended use?
The PZ28-3TD is rated for continuous operation at 600 °C. No derating is specified; thermal management design—including titanium mass, insulation layering, and perimeter shielding—ensures stable performance at full rating for indefinite duration under proper ventilation.

Can the heating plate be used under vacuum or inert gas environments?
Yes—the solid titanium surface and sealed stainless steel housing are compatible with nitrogen or argon glovebox integration. The lid must remain installed to maintain the defined 26 mm thermal gap; vacuum operation is not recommended due to potential outgassing from internal insulators.

Is the temperature uniformity specification (±2 K) verified per ISO 17025 or ASTM E1142?
Uniformity is measured per internal validation protocol using nine-point NIST-traceable Pt100 probes. Full calibration certificates with uncertainty budgets (k=2) are available upon request and comply with ISO/IEC 17025 requirements when issued by an accredited third-party lab.

Does the device support remote start/stop or external triggering via digital I/O?
No native digital I/O is provided. However, the analog temperature output and relay-controlled power enable integration with PLCs or custom controllers via standard 0–10 V signal conditioning and dry-contact interfaces.

What maintenance is required to sustain accuracy over time?
Annual verification of temperature sensor drift and uniformity mapping is recommended. No consumables or fluid replacements are needed. Cleaning is limited to non-abrasive wipe-down of the titanium surface with ethanol; avoid halogenated solvents or acidic cleaners.