Xiatech T500 Series Handheld Precision Resistance Thermometer
| Brand | Xiatech |
|---|---|
| Origin | Shaanxi, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | T500 Series |
| Temperature Measurement Principle | Resistance-Based (RTD) |
| Measurement Method | Contact |
| Temperature Range | -200 to 850 °C |
| Resolution | 0.001 °C |
| Accuracy | ±0.02 °C / ±0.05 °C |
| Display | 5.0-inch Capacitive Touchscreen |
| Data Storage | Internal 1 GB Flash Memory |
| Output Interface | USB 2.0 |
| Units | °C, °F, K, Ω |
| Channels | Dual Input |
Overview
The Xiatech T500 Series Handheld Precision Resistance Thermometer is an engineered solution for high-accuracy, portable temperature measurement in laboratory, industrial, and field environments. Based on platinum resistance temperature detector (PRT/RTD) technology—compliant with IEC 60751 Class A and ASTM E1137 specifications—the instrument delivers traceable, stable, and repeatable readings across an exceptionally wide operational range of −200 °C to +850 °C. Its dual-channel architecture supports simultaneous monitoring of two independent temperature points, enabling comparative analysis, gradient tracking, or reference–test pair measurements. Designed for metrological rigor, the T500 series meets requirements for secondary standard applications, including calibration of thermocouples, liquid-in-glass thermometers, and industrial RTDs—particularly where uncertainties below ±0.02 °C are mandated by internal quality protocols or external accreditation bodies (e.g., ISO/IEC 17025 accredited labs).
Key Features
- Dual-channel RTD input supporting 2-, 3-, or 4-wire Pt100/Pt1000 configurations for minimized lead resistance error
- High-resolution 5.0-inch capacitive touchscreen with intuitive, color-coded UI—enabling real-time visualization of trend curves, statistical parameters (min/max/mean), and active measurement mode
- Internal 1 GB non-volatile flash memory for automatic time-stamped data logging at user-defined intervals (100 ms to 60 s)
- USB 2.0 interface compliant with CDC ACM class for seamless data export to Windows/macOS/Linux systems without proprietary drivers
- Multi-unit display capability: °C, °F, K, and raw resistance (Ω), facilitating cross-standard comparisons and sensor characterization
- Ruggedized ABS+PC housing rated IP54 for dust and splash resistance, optimized for both benchtop and field deployment
- Battery-powered operation (rechargeable Li-ion, >12 h typical runtime) with low-power sleep mode and battery-level indicator
Sample Compatibility & Compliance
The T500 series is compatible with industry-standard platinum RTD probes (e.g., DIN EN 60751 compliant sensors), including miniature sheathed, surface-mount, and immersion-type elements. It does not support thermocouple inputs or infrared sensing. All firmware and hardware designs adhere to electromagnetic compatibility standards per IEC 61326-1 (industrial environment). For regulated environments—including GLP, GMP, or FDA-regulated facilities—the device supports audit-trail-ready data export; while the instrument itself is not 21 CFR Part 11 certified, its raw .CSV output format enables integration into validated LIMS or ELN platforms that enforce electronic signature and change-control workflows.
Software & Data Management
Data acquired by the T500 is stored in timestamped CSV files containing column headers: “Timestamp (YYYY-MM-DD HH:MM:SS.mmm)”, “Channel 1 (°C)”, “Channel 2 (°C)”, “Resistance Ch1 (Ω)”, “Resistance Ch2 (Ω)”. No proprietary software is required for data retrieval or analysis—standard spreadsheet or scientific computing tools (e.g., Python pandas, MATLAB, OriginLab) can directly ingest exported logs. Optional PC-based configuration utility (Windows only) allows setting sample rate, auto-zero calibration offset, alarm thresholds, and screen brightness—all stored persistently in device memory. Firmware updates are delivered via signed .bin files over USB, ensuring integrity verification prior to installation.
Applications
- Metrology & Calibration Labs: Serving as a transportable reference standard for verifying thermometers, thermostats, and environmental chambers per ISO 17025 clause 6.5.2
- Materials Science Research: Monitoring phase transitions (e.g., glass transition, crystallization onset) in polymers and alloys with sub-0.05 °C thermal stability
- Pharmaceutical Process Validation: Mapping temperature uniformity in autoclaves, lyophilizers, and stability chambers during IQ/OQ/PQ protocols
- Energy & Petrochemical Field Services: Surface temperature profiling of pipelines, reactors, and heat exchangers under ambient or insulated conditions
- Food Safety Audits: Verifying cold-chain integrity and HACCP-critical control points (CCPs) during storage, transport, and processing
FAQ
What types of RTD sensors are supported?
The T500 accepts standard 2-, 3-, and 4-wire Pt100 and Pt1000 sensors conforming to IEC 60751. Custom sensor curves (e.g., ITS-90 polynomial coefficients) cannot be programmed—only factory-calibrated linearization tables are applied.
Is the device suitable for use in explosive atmospheres?
No. The T500 is not intrinsically safe (IS) certified and lacks ATEX/IECEx markings. It must not be deployed in Zone 0, 1, or 2 hazardous areas.
Can measurement uncertainty be formally stated per ISO/IEC 17025?
Yes—Xiatech provides a traceable calibration certificate (NIST-traceable reference standard) upon request, specifying expanded uncertainty (k=2) across defined temperature points within the −200 °C to +850 °C range.
Does the instrument support real-time analog or digital output?
No. The T500 has no analog voltage/current outputs or Modbus/RS-485 interfaces. Data transmission occurs exclusively via USB mass-storage mode or manual file export.
How is probe interchangeability managed?
Each channel applies identical fixed calibration coefficients. For multi-probe workflows requiring individual compensation, users must apply external correction factors during post-processing using exported resistance values.
