Zhongke Aobo TC Series Intelligent Digital Ceramic Electric Heating Plate
| Brand | Zhongke Aobo |
|---|---|
| Origin | Beijing, China |
| Model | TC |
| Heating Power | 1.6 kW |
| Max. Heating Temperature | 400 °C |
| Temperature Uniformity | ±3 °C |
| Plate Surface Dimensions | 300 × 300 mm |
| Heating Zone Dimensions | 300 × 300 mm |
| Display Type | Digital LED |
Overview
The Zhongke Aobo TC Series Intelligent Digital Ceramic Electric Heating Plate is a precision-engineered benchtop thermal platform designed for controlled, uniform, and repeatable heating in analytical chemistry, sample preparation, digestion, drying, and thermal treatment applications. Utilizing a monolithic high-purity ceramic heating element embedded beneath a smooth, non-porous alumina-based ceramic plate surface, the device delivers rapid thermal response, exceptional chemical resistance, and long-term dimensional stability under sustained high-temperature operation. Unlike conventional metal-sheathed or wire-wound plates, the ceramic architecture eliminates hot spots, prevents corrosion from acidic or alkaline reagents (e.g., HNO₃, HF, KOH), and ensures compliance with ISO/IEC 17025 requirements for thermal consistency in accredited laboratories. The unit operates on standard 220 V / 50 Hz mains supply and is engineered for continuous duty cycles — supporting unattended operation during extended digestion protocols such as EPA Method 3050B or ASTM D5511.
Key Features
- Ceramic heating surface composed of fused aluminum oxide (Al₂O₃) with ≥95% purity, rated for continuous operation up to 400 °C and resistant to thermal shock, abrasion, and aggressive laboratory chemicals.
- Intelligent PID temperature control algorithm with auto-tuning capability, delivering ±1 °C setpoint accuracy and <±1 °C short-term temperature fluctuation (measured at center and corners per ASTM E220).
- Full-sealed heating element design — no exposed coils or open circuits — eliminating ignition hazards and enabling safe use in fume hoods or near volatile solvents.
- Robust cold-rolled steel housing with epoxy-polyester powder coating for mechanical durability and resistance to incidental chemical splashes.
- Digital LED display with intuitive keypad interface, supporting real-time temperature readout, programmable timer (0–9999 min), and dual-stage overtemperature protection (hardware cutoff at 420 °C + software limit).
- Integrated K-type thermocouple sensor mounted directly beneath the ceramic plate for fast thermal feedback and minimized measurement lag.
Sample Compatibility & Compliance
The TC Series accommodates a wide range of laboratory vessels including borosilicate glass beakers (50–1000 mL), PTFE digestion tubes, quartz crucibles, and ceramic evaporation dishes. Its uniform thermal profile (±3 °C across the full 300 × 300 mm active zone, verified per ISO 17025 calibration procedures) ensures reproducible heating conditions critical for standardized methods such as USP , AOAC 985.29, and GB/T 5009.12–2017. The unit conforms to IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments and supports GLP-compliant documentation through timestamped temperature logging (when paired with optional RS-485 or USB data export modules).
Software & Data Management
While the base TC model operates via standalone front-panel control, optional communication interfaces (RS-485 Modbus RTU or USB-to-serial adapter) enable integration into centralized lab management systems. Compatible with third-party SCADA platforms and LIMS, the device transmits real-time temperature, elapsed time, and alarm status. Firmware supports audit-trail-enabled operation per FDA 21 CFR Part 11 when deployed with validated software clients — ensuring electronic records integrity for regulated QC/QA workflows. Calibration certificates traceable to NIM (National Institute of Metrology, China) are available upon request.
Applications
- Acid digestion of environmental samples (soils, sediments, sludges) prior to ICP-OES or AAS analysis.
- Controlled evaporation of solvent extracts in residue analysis (e.g., pesticide screening per EN 15662).
- Drying and conditioning of reference materials, filter papers, and gravimetric precipitates.
- Pre-heating and thermal equilibration of reaction mixtures in synthetic chemistry protocols.
- Supporting ASTM D86, D1298, and IP 125 density and distillation preparatory steps.
- Stabilization of calibration standards in metrology labs requiring stable thermal baselines.
FAQ
What is the maximum recommended load weight for the 300 × 300 mm plate?
The ceramic surface supports static loads up to 5 kg distributed evenly; avoid point loading or impact contact.
Can the TC plate be used under vacuum or inert gas environments?
Yes — the fully sealed construction allows safe operation inside gloveboxes or vacuum desiccators, provided ambient humidity remains below 80% RH.
Is calibration verification required before first use?
We recommend initial verification using a NIST-traceable handheld thermometer at three points (center, front-left, rear-right) per ISO/IEC 17025 Annex A.3.
Does the unit support ramp-soak temperature programming?
No — the standard TC model provides single-setpoint control only; multi-step profiles require external programmable controllers or upgraded firmware variants (TC-P series).
How often should the K-type thermocouple be recalibrated?
Annually under routine use; more frequently if subjected to thermal cycling above 350 °C or mechanical vibration.
