Anton Paar DMA 1002/1102 Petro Compact Benchtop Oscillating U-Tube Densimeter
| Brand | Anton Paar |
|---|---|
| Origin | Austria |
| Manufacturer Type | Manufacturer |
| Origin Category | Imported |
| Model | DMA 1002/1102 Petro |
| Instrument Type | Oscillating U-tube Densimeter |
| Instrument Category | Portable |
| Sample Type | Liquid |
| Density Range | 0 g/cm³ to 3 g/cm³ |
| Density Accuracy | ±0.0001 g/cm³ |
| Temperature Range | 15 °C to 100 °C (59 °F to 212 °F) |
| Temperature Accuracy | ±0.03 °C (from +15 °C to +100 °C) |
| Density Resolution | 5 significant digits |
| Viscosity Range (DMA 1102 only) | –0.3 mm²/s to 1000 mm²/s |
| Viscosity Repeatability | ±0.2% |
| Minimum Sample Volume | 3.5 mL |
| Display | 7-inch TFT WVGA (800 × 480 px) PCAP touch screen |
| Dimensions (L×W×H) | 365 mm × 265 mm × 180 mm |
| Weight | 6.6 kg |
Overview
The Anton Paar DMA 1002/1102 Petro is a compact, portable oscillating U-tube densimeter engineered for high-precision density measurement of liquid petroleum products in both laboratory and field environments. It operates on the fundamental physical principle of resonant frequency shift in a precisely machined U-shaped glass tube filled with sample—where density is derived from the inverse square of the measured oscillation period, corrected for temperature and calibration constants. Designed to meet ASTM D4052 requirements for petroleum product density determination, the instrument delivers traceable, standardized results without reliance on reference liquids or manual interpolation. Its integrated Peltier-based thermostat enables rapid thermal equilibration (typically under 60 seconds), while the robust mechanical architecture—featuring titanium, stainless steel 1.4404/1.4571, Inconel® 600, and chemically inert wetted materials (PEEK, FEP, FFKM, Balinit® C WCC)—ensures long-term stability and resistance to aggressive hydrocarbons, solvents, and biofuels. The DMA 1102 Petro extends functionality by simultaneously determining kinematic viscosity via integrated capillary flow timing within the same measurement cycle—eliminating sequential instrumentation and cross-sample variability.
Key Features
- Oscillating U-tube technology compliant with ASTM D4052, D396, D1655, and D6823 for gasoline, diesel, jet fuel, biodiesel, and lubricants
- Portable, battery-powered operation (DMA 1002) enabling true on-site analysis at wellheads, refineries, terminals, and remote depots
- Simple Fill™ one-step sample introduction—no syringes, pipettes, or vacuum systems required; minimizes operator error and contamination risk
- Integrated Peltier temperature control (15 °C–100 °C) with ±0.03 °C accuracy and 0.001 °C resolution, ensuring thermodynamic consistency across measurements
- Metal-reinforced measuring cell eliminates glass breakage hazards common in traditional U-tube instruments—critical for hazardous area compliance and transport safety
- U-View™ real-time waveform visualization confirms proper sample filling and detects air bubbles or particulate interference prior to calculation
- Automated viscosity correction algorithms applied directly to density output per ASTM D1298 Annex A1, supporting full API gravity and base number derivations
Sample Compatibility & Compliance
The DMA 1002/1102 Petro accommodates a broad spectrum of petroleum-derived liquids—including crude fractions, distillates, reformulated fuels, ethanol blends (E10–E85), fatty acid methyl esters (FAME), and synthetic hydrocarbons—without requiring method reconfiguration. All wetted components are certified compatible with Class I, Division 2 (CID2) environments per UL 61010-1 and ATEX Directive 2014/34/EU when used with optional explosion-proof enclosures. Data integrity conforms to FDA 21 CFR Part 11 requirements through AP Connect™ integration, enabling electronic signatures, audit trails, and role-based access control. Measurement uncertainty budgets are fully documented per ISO/IEC 17025:2017 Annex A.2, and calibration certificates include NIST-traceable references issued by Anton Paar’s accredited calibration laboratory (ISO/IEC 17025 accredited).
Software & Data Management
Built-in firmware supports direct export of raw and processed data (CSV, PDF, XML) via USB-A ports or USB-B host connection. Measurement history—up to 1000 records—is stored with timestamp, operator ID, ambient conditions, and full metadata (temperature, oscillation amplitude, damping factor). AP Connect™ laboratory execution system (LES) integration enables automated workflow routing, LIMS synchronization, and GLP/GMP-compliant reporting with electronic signature capture. Optional keyboard/mouse/2D barcode scanner support allows hands-free batch processing in high-throughput QC labs. Firmware updates are delivered via secure HTTPS channel with cryptographic signature verification to maintain regulatory compliance throughout device lifecycle.
Applications
- Real-time quality assurance during refinery blending operations and pipeline custody transfer
- Field verification of fuel specifications per EN 590, ASTM D975, and ISO 8217 prior to delivery or storage
- API gravity and sulfur content estimation using correlated density-temperature relationships
- Monitoring oxidation stability and degradation in turbine oils and hydraulic fluids via density drift trends
- Supporting ASTM D7467 (biodiesel blend verification) and D6751 (B100 purity assessment) through multi-point density profiling
- Calibration verification of online densitometers in continuous process streams using grab samples
FAQ
Is the DMA 1102 Petro capable of standalone viscosity reporting without external software?
Yes—the instrument calculates and displays kinematic viscosity (mm²/s) in real time alongside density, using internal capillary timing and temperature-corrected calibration curves per ASTM D445 principles.
What validation protocols are supported for GxP-regulated environments?
The system supports IQ/OQ/PQ documentation packages aligned with ASTM E2500 and ISPE GAMP 5. Electronic records include immutable timestamps, user authentication logs, and change history per 21 CFR Part 11 Subpart B.
Can the instrument operate unattended during extended field deployments?
With optional external power bank (12 V DC input) and IP54-rated protective case, the DMA 1002 achieves >8 hours of continuous operation with automatic sleep/wake cycling between measurements.
How does the metal-reinforced measuring cell affect measurement uncertainty?
Thermal expansion compensation algorithms are pre-characterized for the hybrid titanium-stainless steel cell geometry, maintaining ±0.0001 g/cm³ accuracy across the full 15–100 °C range without recalibration.
Are there restrictions on sample volatility or vapor pressure?
Samples with Reid Vapor Pressure (RVP) up to 100 kPa may be measured using the optional pressurized sample inlet kit (PN 139525), which maintains sealed flow path integrity during injection and analysis.
