HengaoDe HAD-29828 Portable Egg Freshness & Shell Thickness Analyzer with Haugh Unit Calculation | HAD-3015 Dual-Channel NDIR CO/CO₂ Analyzer | HAD-29825 Intelligent NDIR CO₂ Gas Detector | HAD-510A2 Lubricating Grease Pour & Cloud Point Tester | HAD-L4929 ASTM D566/D2265 Lubricating Grease Drop Point Tester | HAD-29820 NDIR Carbon Monoxide Analyzer | HAD-KTY1 Multi-Parameter Soil EC/Temperature/Humidity Logger | HAD-UECS IP65 Rugged Handheld Soil Conductivity Meter with GPRS | HAD-SB2 Benchtop LED-Based Whiteness Meter (ISO 2470, GB/T 3978) | HAD-ZDZ-52T Miniature Resistive Vacuum Gauge (10⁵–10⁻¹ Pa)
| Brand | HengaoDe |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HAD-29828 / HAD-3015 / HAD-29825 / HAD-510A2 / HAD-L4929 / HAD-29820 / HAD-KTY1 / HAD-UECS / HAD-SB2 / HAD-ZDZ-52T |
| Power Supply | AC 220 V ±10%, 50 Hz or internal rechargeable battery (varies by model) |
| Compliance | GB/T 18204.23–2000, GB/T 9801–1988, GB/T 18204.24–2000, JJG 635–2011, ASTM D566, ASTM D2265, ISO 2470, GB/T 3978, GB/T 4929 |
| Measurement Principle | NDIR (CO, CO₂), Haugh Unit calculation via albumen height (mm), ASTM pour/cloud point cooling ramp, ASTM drop point heating ramp, LED reflectance (45°/0°), resistive vacuum sensing |
Overview
The HengaoDe Multi-Function Laboratory Instrument Suite comprises ten rigorously engineered analytical systems designed for quality control, regulatory compliance, and field-deployable measurement across food science, environmental monitoring, materials testing, and industrial process validation. This integrated portfolio includes the HAD-29828 Egg Freshness Analyzer—based on precise albumen height measurement (0.00–12.00 mm, resolution 0.01 mm) and automated Haugh Unit derivation per ISO 21569 and USDA AMS standards; dual-gas NDIR analyzers (HAD-3015, HAD-29825, HAD-29820) compliant with GB/T 18204.23–2000 and JJG 635–2011; thermally controlled grease characterization instruments (HAD-510A2 pour/cloud point tester, HAD-L4929 drop point tester) meeting ASTM D566, D2265, and GB/T 4929; high-stability soil conductivity loggers (HAD-KTY1, HAD-UECS) with temperature/humidity compensation and optional GPS/GPRS telemetry; a benchtop LED-based whiteness meter (HAD-SB2) calibrated to GB/T 3978 45°/0° geometry and ISO 2470; and a miniature resistive vacuum gauge (HAD-ZDZ-52T) covering 10⁵–10⁻¹ Pa with 1% full-scale accuracy. All units are manufactured under ISO 9001-aligned quality procedures and undergo factory calibration traceable to national metrological standards.
Key Features
- Modular design architecture enabling seamless integration of complementary measurements—e.g., simultaneous egg freshness assessment and ambient CO₂ monitoring in hatchery QA environments.
- NDIR gas analyzers feature dual-wavelength detection, built-in sampling pumps (0.5–2.0 L/min flow), auto-zero compensation, and real-time temperature/humidity correction algorithms to maintain linearity (≤±2% FS) across seasonal variations.
- Egg analyzer incorporates mechanical precision stage with micrometer-adjustable probe, digital LCD display, dual unit selection (mm/inch), and dedicated Haugh Unit conversion scale aligned with USDA Agricultural Handbook No. 75.
- Lubricant testers utilize PID-controlled refrigeration (HAD-510A2: –40°C to RT) or oil-bath heating (HAD-L4929: –5°C to 300°C), both with ASTM-compliant sample cups, thermometry, and stirring mechanisms ensuring reproducibility per ASTM E29.
- Soil EC meters employ graphite or stainless-steel electrode arrays with automatic temperature compensation (0–50°C), IP65-rated enclosures (HAD-UECS), and expandable sensor architecture supporting future addition of pH, NO₃⁻, or volumetric water content probes via RS485.
- Vacuum gauge offers fast response (<1 s), relay output for pump interlock, and LED 5-digit display—engineered for vacuum chamber monitoring in coating, drying, or packaging applications.
Sample Compatibility & Compliance
The suite supports diverse physical states and matrices: liquid albumen (HAD-29828), ambient air (HAD-3015/HAD-29825/HAD-29820), semi-solid greases (HAD-510A2/HAD-L4929), mineral soils (HAD-KTY1/HAD-UECS), solid powders/films (HAD-SB2), and low-pressure gaseous environments (HAD-ZDZ-52T). Each instrument conforms to relevant international and national standards: egg analysis aligns with ISO 21569 Annex B and Codex Alimentarius CXS 228–2001; gas analyzers meet GB/T 18204.23–2000 (CO), GB/T 18204.24–2000 (CO₂), and JJG 635–2011 verification protocols; grease testers satisfy ASTM D566 (drop point), ASTM D2500 (cloud point), and GB/T 4929; soil EC meters adhere to ISO 11265 and ASTM D420; whiteness meter complies with ISO 2470 and GB/T 3978 geometric specifications. Full documentation packages include calibration certificates, test reports, and conformity declarations for GLP/GMP-aligned laboratories.
Software & Data Management
All portable and benchtop units integrate standardized data interfaces: USB 2.0 (mass storage or CDC mode), RS232/RS485, and optional GPRS (HAD-UECS). PC software—provided free of charge—supports raw data export in CSV/Excel format, time-series graphing, statistical summary (mean, SD, min/max), and report generation compliant with FDA 21 CFR Part 11 requirements (audit trail, electronic signature support available upon request). The HAD-KTY1 and HAD-UECS loggers store up to 520,000 records with user-configurable intervals (2 s–99 h), while gas analyzers retain ≥5,000 measurement sets with timestamp, environmental conditions, and alarm status flags. Firmware updates are delivered via USB; configuration parameters (e.g., CO₂ span calibration, EC temperature coefficient) are preserved across power cycles.
Applications
- Food Quality Assurance: Routine Haugh Unit screening in egg processing plants; shelf-life prediction via albumen degradation kinetics; CO₂ monitoring in modified-atmosphere packaging lines.
- Environmental Health: Indoor air quality (IAQ) surveys per WHO guidelines; occupational exposure assessment for CO in boiler rooms or garages; greenhouse CO₂ dosing control.
- Lubricant R&D: Pour point determination for cold-climate hydraulic fluids; drop point validation of lithium-complex greases; cloud point analysis of bio-based base oils.
- Agricultural Science: Salinity mapping in irrigation districts; EC-based fertilizer optimization; long-term soil health trend analysis using geotagged HAD-UECS deployments.
- Materials Testing: Whiteness grading of paper pulp, titanium dioxide pigments, or ceramic glazes; vacuum integrity verification during vacuum impregnation of composites.
FAQ
Are calibration certificates supplied with each instrument?
Yes—factory calibration certificates traceable to CNAS-accredited reference standards are included. Optional ISO/IEC 17025-certified recalibration services are available.
Can the egg analyzer measure shell thickness directly?
No—the HAD-29828 quantifies albumen height only. Shell thickness requires separate instrumentation (e.g., ultrasonic thickness gauge); however, Haugh Unit remains the internationally accepted proxy for overall egg quality decay.
Do the NDIR gas analyzers require periodic sensor replacement?
CO and CO₂ sensors have a typical service life of 24 months under normal operating conditions. Replacement modules are available with pre-installed calibration coefficients.
Is the soil EC meter suitable for saline-sodic soils?
Yes—the HAD-UECS and HAD-KTY1 operate linearly up to 20 mS/cm and include automatic temperature compensation algorithms validated across EC ranges 0.1–20 mS/cm.
Does the vacuum gauge support analog output for PLC integration?
The HAD-ZDZ-52T provides digital relay outputs only. For 4–20 mA analog interfacing, contact technical support for compatible signal-conditioning accessories.
