Fluoride Digital Heavy-Duty Lubricating Grease Volatility Tester FDH-1906
| Brand | Fluoride (csfriend) |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Manufacture | China |
| Model | FDH-1906 |
| Product Category | Laboratory Instrument |
| Input Voltage | AC 220 V ±10%, 50 Hz |
| Input Power | 2 kW |
| Temperature Control Range | Ambient to 200 °C |
| Temperature Control Accuracy | ±0.5 °C |
| Timing Range | 0–100 h |
Overview
The Fluoride Digital Heavy-Duty Lubricating Grease Volatility Tester FDH-1906 is a precision-engineered laboratory instrument designed to quantify the mass loss of lubricating greases and oils under controlled elevated temperature and airflow conditions—per ASTM D972, ISO 14615, and GB/T 7325 standards. It operates on the principle of gravimetric volatility assessment: a pre-weighed grease sample is exposed to a regulated stream of dry air at a defined temperature for a specified duration; the percentage mass loss is then calculated from post-test re-weighing. This method directly correlates with real-world service performance, particularly in high-temperature bearing applications where volatile fractions (e.g., low-molecular-weight thickeners or base oil cut points) may evaporate, leading to increased oxidation, hardening, or pumpability failure. The FDH-1906’s dual-unit architecture enables concurrent testing of two independent samples under identical thermal and pneumatic conditions—supporting statistical validation through parallel determinations and reducing inter-test variability.
Key Features
- Dual independent test chambers with individual thermal and airflow control—enabling true parallel sample analysis per ASTM D972 Section 7.3 requirements.
- High-stability integrated air pump delivering consistent, pulse-free airflow (adjustable within 5–15 L/min range), eliminating external gas cylinder dependency and ensuring reproducible purge conditions.
- Omron PID temperature controller with LCD digital display and expert calibration system—providing real-time monitoring and traceable thermal stability across the full 20–200 °C operational range.
- Built-in precision flowmeter and dual-stage desiccant dryer assembly—ensuring accurate volumetric airflow measurement and removal of moisture from the purge gas prior to sample exposure.
- Robust stainless-steel heating chamber with optimized thermal uniformity (<±0.8 °C spatial deviation at 150 °C) and insulated door seal to minimize ambient interference.
- Programmable digital timer (0–100 h resolution: 1 min) with audible end-of-test alert and auto-hold function for seamless integration into routine QC workflows.
Sample Compatibility & Compliance
The FDH-1906 accommodates standard ASTM D972 aluminum crucibles (50 mL capacity) and supports grease NLGI Grades 000–3, as well as mineral and synthetic lubricating oils with initial boiling points above 180 °C. Sample mass loading (typically 2.0 ± 0.1 g) is verified using analytical balances compliant with ISO/IEC 17025 calibration protocols. The instrument meets essential design criteria outlined in ASTM D972 Annex A1 (apparatus specifications), ISO 14615 Clause 5 (test environment control), and Chinese national standard GB/T 7325–2014. Its construction adheres to IEC 61010-1 safety requirements for electrical laboratory equipment. While not certified for GLP or GMP environments out-of-the-box, its calibrated temperature and timing subsystems support audit-ready documentation when paired with validated SOPs and external balance traceability records.
Software & Data Management
The FDH-1906 operates as a standalone hardware platform without embedded software or network connectivity. All operational parameters—including setpoint temperature, airflow rate (via manual flowmeter reading), and elapsed time—are manually recorded by the operator. For laboratories requiring electronic data capture, the instrument is compatible with third-party LIMS or ELN systems via standardized manual entry templates aligned with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate). Optional accessories include NIST-traceable RTD probes for independent temperature verification and certified reference materials (CRM) kits for periodic performance checks per ISO/IEC 17043 proficiency testing guidelines.
Applications
- Quality control of automotive and industrial greases during batch release testing.
- Formulation development for high-temperature greases used in electric motor bearings, steel mill roll necks, and wind turbine pitch systems.
- Comparative evaluation of thickener volatility resistance (e.g., lithium vs. polyurea vs. clay-thickened systems).
- Stability screening of biobased lubricants where ester volatility impacts long-term oxidative life.
- Regulatory compliance testing for OEM specifications requiring D972-conformant volatility data (e.g., SKF BE3, GM 6277M).
FAQ
What standards does the FDH-1906 comply with?
It is engineered to meet the apparatus and procedural requirements of ASTM D972, ISO 14615, and GB/T 7325–2014.
Can the instrument be used for oil-only testing?
Yes—provided the oil has sufficient viscosity to remain in the crucible during heating and meets the minimum initial boiling point threshold (>180 °C) specified in ASTM D972.
Is external calibration required?
Periodic verification using NIST-traceable thermocouples and calibrated flow meters is recommended every 6 months or per internal QA schedule.
Does the FDH-1906 support automated data export?
No—it is a manually operated benchtop instrument; all measurements require operator recording and subsequent transfer to spreadsheets or LIMS.
What maintenance is required for the built-in air pump?
The diaphragm pump requires annual inspection of inlet filters and replacement of carbon brushes per manufacturer service bulletin CSF-FDH1906-MNT-2023.
