TimePower TP625 Kinematic Viscosity Tester
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | TP625 |
| Price | Upon Request |
| Temperature Control Range | 0–150 °C (0 °C to ambient requires optional chiller) |
| Temperature Accuracy | ±0.1 °C |
| Temperature Resolution | 0.01 °C |
| Sample Positions | 4 independent capillary viscometer baths |
| Display | Full-color LCD with real-time clock (battery-backed, retains time during power loss) |
| Cooling Option | Optional external refrigeration unit for sub-ambient testing |
| Power Consumption | 1500 W |
| Supply Voltage | AC 220 V ±5%, 50 Hz ±5% |
| Operating Ambient | 5–40 °C, ≤85% RH |
| Dimensions (W×D×H) | 515 × 385 × 450 mm |
| Weight | 19.28 kg |
| Compatible Capillary Types | Ubbelohde (0.4–4.0 mm²/s), Cannon-Fenske (0.4–6.0 mm²/s) |
Overview
The TimePower TP625 Kinematic Viscosity Tester is a microprocessor-controlled, four-bath capillary viscometer system engineered for precise and repeatable kinematic viscosity measurements in accordance with ASTM D445, ISO 3104, IP 71, and GB/T 265 standards. It operates on the fundamental principle of gravity-driven laminar flow through calibrated glass capillary tubes—where kinematic viscosity (ν, in mm²/s or cSt) is derived from the efflux time of a fixed volume of liquid under controlled temperature conditions. Designed specifically for petroleum products—including base oils, lubricants, diesel fuels, transformer oils, and aviation turbine fuels—the TP625 ensures metrological integrity across routine QC laboratories and R&D facilities in power generation, petrochemical refining, customs inspection, and academic research.
Key Features
- Four independent thermostatically controlled bath stations enabling concurrent analysis of multiple samples or replicate determinations per batch.
- PID-based digital temperature regulation with ±0.1 °C accuracy and 0.01 °C resolution over a continuous range from 0 °C to 150 °C; sub-ambient operation supported via optional external chiller integration.
- High-stability platinum resistance temperature sensors (PT100-class) mounted directly within each bath for rapid thermal response and minimal gradient deviation.
- True-color LCD interface with intuitive menu navigation, real-time parameter monitoring, and non-volatile clock module (maintains date/time during mains interruption).
- Integrated LED illumination system positioned adjacent to each viscometer holder to enhance meniscus visibility during manual timing or automated optical detection setup.
- Rugged steel-reinforced chassis with corrosion-resistant finish and ergonomic footprint (515 × 385 × 450 mm), optimized for benchtop deployment in regulated laboratory environments.
Sample Compatibility & Compliance
The TP625 supports standard ASTM/ISO-compliant capillary viscometers, including Ubbelohde (range: 0.4–4.0 mm²/s) and Cannon-Fenske (range: 0.4–6.0 mm²/s) types, with traceable calibration certificates available upon request. All thermal and timing subsystems are validated against NIST-traceable references. The instrument meets essential requirements for GLP-compliant operations: audit trail capability (via optional data export logs), user-access level management (administrator/operator modes), and electronic record retention aligned with FDA 21 CFR Part 11 principles when paired with TimePower’s certified LIMS interface module. It is routinely deployed in ISO/IEC 17025-accredited testing labs for petroleum product certification.
Software & Data Management
While the TP625 operates as a standalone benchtop instrument with embedded firmware, it features RS-232 and USB-B ports for bidirectional communication with TimePower’s proprietary ViscoLink™ PC software (v3.2+). This application enables automated calculation of kinematic viscosity using standardized correction algorithms (e.g., kinetic energy correction per ASTM D445 Annex A1), statistical evaluation of repeatability (r) and reproducibility (R), and generation of compliant test reports in PDF or CSV format. Raw efflux times, bath temperatures, and operator IDs are timestamped and stored locally for ≥10,000 test records. Exported datasets include metadata required for internal QA audits and external accreditation submissions.
Applications
- Quality control of mineral and synthetic lubricants prior to packaging or commissioning.
- Monitoring oxidative stability of transformer oils in electrical utility maintenance programs.
- Verification of fuel specification compliance (e.g., ASTM D975 for diesel, ASTM D1655 for jet fuel) at refinery off-gas points.
- Research-grade viscosity-temperature profiling (VTF) for polymer solution characterization in petrochemical R&D.
- Calibration verification of field-deployed handheld viscometers using certified reference oils (CRM grades).
FAQ
Does the TP625 support automatic timing via optical detection?
Yes—when equipped with optional photoelectric sensors and compatible capillaries, the system can perform fully automated efflux timing; manual stopwatch mode remains available as fallback.
Can the instrument be used for biodiesel or bio-lubricant testing?
Yes—provided the sample exhibits Newtonian behavior within the operational shear rate regime of capillary flow and falls within the validated temperature and viscosity ranges.
Is calibration documentation provided with shipment?
All units ship with a factory calibration certificate referencing NIST-traceable temperature and timing standards; ISO/IEC 17025 calibration services are available separately.
What safety certifications does the TP625 hold?
The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and carries CE marking under the EU Low Voltage Directive.
How is firmware updated?
Firmware upgrades are delivered via encrypted USB drive and installed through the service menu; version history and update logs are retained in system memory.
