ATAGO DOM-24 Edible Oil TPM & Acid Value Analyzer

Overview

The ATAGO DOM-24 Edible Oil TPM & Acid Value Analyzer is a handheld, field-deployable optical instrument engineered for rapid, non-destructive quantification of Total Polar Materials (TPM%) and Acid Value (AV) in frying oils—critical parameters for assessing thermal degradation and oxidative stability during repeated use. Unlike chromatographic or titrimetric reference methods, the DOM-24 employs calibrated refractive index and dielectric property correlation algorithms, validated against ASTM D7462 and ISO 8534 standards for edible oil quality assessment. Its measurement principle relies on the linear relationship between oil polarity (driven by hydrolysis and oxidation products such as free fatty acids, mono- and di-glycerides, aldehydes, and ketones) and changes in bulk optical dispersion. Designed specifically for high-temperature food service environments—including wok cooking, deep-frying, and hot pot base preparation—the DOM-24 delivers traceable, repeatable results without solvent extraction or sample cooling, enabling real-time decision-making on oil replacement cycles.

Key Features

• Simultaneous dual-parameter measurement: TPM% (0.5–40.0%) and AV (0.00–9.99) in a single 3-second assay
• Integrated Automatic Temperature Compensation (ATC) across 0–225°C, eliminating manual correction and ensuring metrological consistency regardless of oil temperature
• IP67-rated rugged housing with heat-resistant probe tip, certified for immersion in hot oil up to 225°C and resistant to steam, splatter, and cleaning agents
• Optical sensor architecture with factory calibration traceable to NIST-traceable reference oils; no user recalibration required under normal operation
• Ergonomic, one-handed design with 30 cm operational standoff distance—minimizing operator exposure to thermal hazards and reducing risk of burns
• Android-compatible NFC module for direct wireless data transfer; eliminates transcription errors and supports audit-ready digital logging

Sample Compatibility & Compliance

The DOM-24 is validated for use with common culinary frying media including palm olein, soybean oil, canola oil, sunflower oil, and blended frying fats. It is not intended for highly emulsified, particulate-laden, or heavily smoked oils without prior settling. The instrument complies with regulatory frameworks governing food safety enforcement in multiple jurisdictions: its TPM% measurement range (0.5–40.0%) aligns with EU Commission Regulation (EU) No 1333/2008 thresholds, China’s GB 7102.1–2003 limit of ≤27% TPM, and the U.S. FDA Food Code recommendation of ≤24% TPM for discard criteria. For laboratory and inspection use, the DOM-24 supports GLP-compliant workflows through timestamped, device-locked measurement records exportable via NFC or USB-C (with optional adapter). While not 21 CFR Part 11–certified out-of-the-box, its immutable measurement logs—containing instrument ID, date/time stamp, temperature, TPM%, and AV—meet baseline data integrity requirements for regulatory audits.

Software & Data Management

Data acquisition and reporting are managed exclusively through ATAGO’s proprietary Android application (DOM-24 Connect), available via Google Play Store. The app enables batch labeling, location tagging (GPS), photo annotation, and CSV export compatible with LIMS platforms and Excel-based QA dashboards. All measurements include embedded metadata: firmware version, battery status, ambient humidity (via internal sensor), and thermal drift compensation flag. Exported files are SHA-256 hashed to ensure data provenance; no cloud storage occurs unless explicitly enabled by the user. For institutional deployment, ATAGO provides an optional Windows-based desktop utility (DOM-24 Manager v3.x) supporting bulk import, statistical trend analysis (X-bar/R charts), and PDF report generation compliant with ISO/IEC 17025 documentation templates.

Applications

• Routine on-site monitoring of frying oil quality in restaurants, street food vendors, and catering facilities
• Regulatory inspections by municipal food safety authorities, health departments, and market supervision bureaus
• Preventive maintenance scheduling in commercial kitchens to extend oil service life while maintaining sensory and functional performance
• Quality assurance validation during hot pot broth production, where prolonged simmering accelerates hydrolytic rancidity
• Training and compliance verification for kitchen staff under HACCP-based food safety management systems
• Field research on lipid oxidation kinetics in developing-world food service settings lacking laboratory infrastructure

FAQ

Does the DOM-24 require consumables or reagents?
No. The analyzer operates without test strips, solvents, or chemical reagents. Its optical sensor is sealed and maintenance-free for the instrument’s rated service life (≥5 years under typical usage).

Can the DOM-24 measure TPM in olive oil or cold-pressed oils?
No. It is calibrated exclusively for thermally stressed frying oils. Unheated or low-polarity virgin oils fall outside its validated measurement domain and will yield non-representative TPM readings.

Is NFC functionality supported on iOS devices?
No. NFC pairing is limited to Android OS 8.0+ devices with NFC hardware enabled. iOS users must rely on manual entry or optional Bluetooth adapter (sold separately).

How often should the instrument be verified against reference standards?
ATAGO recommends annual verification using certified TPM reference oils (e.g., DOM-24 Calibration Kit #9341-KIT), traceable to JCSS-accredited laboratories. Field verification checks may be performed daily using the included zero-point oil vial.

What is the warranty coverage for the DOM-24?
The DOM-24 carries a 24-month limited warranty covering parts and labor for defects in materials and workmanship, excluding damage from misuse, unauthorized modification, or exposure beyond IP67 environmental limits.