GuanCe Instruments ZKEY-I3 Carbon Block CO₂ Reactivity Analyzer
| Brand | GuanCe Instruments |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ZKEY-I3 |
| Price | USD 950 (FOB Beijing) |
| Rated Power | 3 kW |
| Rated Voltage | 220 V / 50 Hz |
| Max Temperature | 1000 °C |
| Operating Temperature Range | 0–960 °C |
| Temperature Control Accuracy | ±1 °C |
| Thermocouple Type | K-type, 0–1000 °C |
| Reaction Gas | High-Purity CO₂ (≥99.99%) |
| Gas Flow Sensor Range | 0–250 L/h, Accuracy: ±4% FS |
| Pressure Sensor Range | 0–1 MPa, Accuracy Class ≥1.5 |
| Sample Dimensions | Ø50 mm ±1 mm × 60 mm ±1 mm |
| Equipment Dimensions | 1200 mm (L) × 820 mm (W) × 1500 mm (H) |
| Net Weight | 100 kg |
Overview
The GuanCe Instruments ZKEY-I3 Carbon Block CO₂ Reactivity Analyzer is a precision laboratory instrument engineered for the quantitative determination of carbon dioxide reactivity in baked carbon anodes and other aluminum-grade carbonaceous materials. It operates on the principle of gravimetric mass loss measurement under controlled high-temperature CO₂ gas flow, in strict accordance with ISO 12988-1:2000 (Modified), YS/T 63.12–2006, and YS/T 62.3–2005. The system integrates a high-stability resistance-heated furnace, calibrated gas delivery subsystems, real-time mass monitoring, and programmable logic controller (PLC)-based automation to deliver repeatable, traceable, and standards-compliant test results essential for quality assurance in primary aluminum production and carbon material R&D.
Key Features
- High-uniformity furnace architecture featuring vacuum-formed high-temperature ceramic fiber insulation and embedded resistance heating elements—ensuring stable thermal profiles and a uniform isothermal zone across the sample chamber.
- Precision PID temperature control system with K-type thermocouple feedback, achieving ±1 °C stability at setpoints up to 960 °C—critical for reproducible reaction kinetics evaluation.
- Dual-stage gas conditioning: integrated air filtration and pressure regulation upstream of the CO₂ supply line, followed by a calibrated mass flow sensor (0–250 L/h, ±4% full-scale accuracy) to maintain stoichiometric gas delivery consistency.
- Modular human-machine interface: 7-inch industrial touchscreen HMI for local operation, plus optional Ethernet-enabled PC software for remote experiment scheduling, real-time data streaming, and automated report generation.
- Robust mechanical design: powder-coated steel enclosure compliant with IP54 ingress protection; optimized layout for safe handling of hot samples and routine maintenance access.
- Comprehensive safety interlocks including overtemperature cutoff, gas leak detection logic, and door-open thermal shutdown—designed to meet IEC 61000-6-2/6-4 electromagnetic compatibility and basic functional safety requirements.
Sample Compatibility & Compliance
The ZKEY-I3 accepts cylindrical carbon specimens conforming to ISO 12988-1 and YS/T 63.12 specifications: Ø50 mm ±1 mm × 60 mm ±1 mm. It supports baked anodes, graphitized carbon blocks, and calcined petroleum coke-based composites used in Hall–Héroult cell applications. All operational parameters—including ramp rate, dwell time, gas flow sequence, and mass recording intervals—are configurable to align with method-defined protocols. Data acquisition complies with GLP documentation practices: timestamps, operator ID, calibration status, and environmental conditions (ambient temperature, barometric pressure) are embedded in each result file. While not certified to FDA 21 CFR Part 11 out-of-the-box, the software architecture supports audit trail logging and electronic signature integration upon customer-specific validation.
Software & Data Management
The bundled ZKEY-Control Suite (v3.2+) provides ISO/IEC 17025-aligned data handling: raw mass vs. time curves, derivative reaction rate plots, endpoint detection algorithms, and automatic calculation of CO₂ reactivity index (% mass loss after specified duration). Export formats include CSV, PDF test reports, and XML metadata packages compatible with LIMS environments. Version-controlled firmware updates are delivered via secure HTTPS portal. Data integrity safeguards include cyclic redundancy checks (CRC) on stored files and write-once-read-many (WORM) archive mode for regulatory submission readiness.
Applications
- Quality control testing of prebaked anodes prior to electrolytic cell insertion.
- Comparative reactivity screening during carbon material formulation development.
- Thermal stability assessment of alternative binder systems under simulated anode operating conditions.
- Correlation studies between CO₂ reactivity, apparent porosity, and electrical resistivity in carbon microstructures.
- Supporting ASTM D3176 and ISO 697 carbon content validation workflows where oxidative degradation behavior informs feedstock selection.
FAQ
What standards does the ZKEY-I3 explicitly support?
ISO 12988-1:2000 (MOD), YS/T 63.12–2006, and YS/T 62.3–2005 — all implemented via preloaded test templates and parameter constraints.
Is third-party calibration certification available?
Yes. Optional NIST-traceable calibration packages include furnace temperature uniformity mapping, flowmeter verification, and analytical balance integration per ISO/IEC 17025 scope.
Can the system operate unattended overnight?
Yes. Scheduled auto-start, thermal soak stabilization logic, and fault-triggered email alerts enable extended runs without manual supervision.
What maintenance intervals are recommended?
Ceramic fiber integrity inspection every 500 operating hours; thermocouple verification every 3 months; gas line filter replacement quarterly or per 1000 L CO₂ consumed.
Does the instrument require external cooling water or compressed air?
No. All cooling is passive or fan-assisted; no auxiliary utilities beyond standard 220 V / 50 Hz single-phase power are required.
