HengaoDe HAD-CY2 Dual-Channel Constant-Flow Atmospheric Sampler | HAD-PC9A Digital Micro-Ohmmeter | HALSC50 Halogen Moisture Analyzer | HA/RS-24 Multi-Mode Vortex Mixer | HAD-Oxi 1970i Portable Dissolved Oxygen Meter | HGYC-2/3 Pharmacopoeial Transdermal Patch Softening Point Tester | HAD-10A High-Current DC Resistance Tester for Transformers

Overview

This integrated instrumentation suite comprises seven rigorously specified laboratory and field-deployable analytical devices engineered for compliance-critical environments in environmental monitoring, pharmaceutical QC, materials science, and industrial maintenance. The HAD-CY2 dual-channel constant-flow atmospheric sampler employs precision mass flow control via imported diaphragm vacuum pumps to deliver stable, temperature- and pressure-compensated sampling under ISO 12103-1 and EPA Method TO-15 conditions. The HAD-PC9A digital micro-ohmmeter applies four-terminal Kelvin sensing with automatic range switching and inductive discharge suppression—essential for low-resistance characterization of transformer windings per IEC 60076-3 and IEEE C57.12.90. The HALSC50 halogen moisture analyzer utilizes rapid, uniform thermal radiation (not convection) to drive off volatiles from heterogeneous organic matrices, delivering gravimetric water content results traceable to NIST SRM 2890. The HA/RS-24 multi-mode vortex mixer integrates Hall-effect tachometry and adaptive load compensation for reproducible mixing across tube, flask, microplate, and PCR formats—critical for assay preparation under CLIA and ISO 15189. The HAD-Oxi 1970i portable dissolved oxygen meter implements Clark-type polarographic sensing with automatic temperature, salinity, and barometric pressure compensation—validated against Winkler titration per APHA 4500-O G. The HGYC-2/3 softening point tester conforms strictly to Chinese Pharmacopoeia 2020 Edition Vol. IV for transdermal patch release testing, featuring PID-controlled water bath ramping at 1.0–1.5°C/min. Finally, the HAD-10A high-current DC resistance tester delivers transformer winding verification per DL/T 596 and IEC 60298, utilizing regulated 2 A test current with arc suppression and GLP-compliant audit trails.

Key Features

• Dual independent flow channels on HAD-CY2 enable simultaneous parallel sampling with real-time volumetric correction to standard conditions (0°C or 20°C, 101.325 kPa)
• HAD-PC9A offers six auto-ranging resistance scales (20 mΩ to 20 kΩ), AC/DC operation, and dedicated inductive discharge mode for large transformers
• HALSC50 features a 90 mm diameter stainless steel sample pan, RS232 interface, and programmable heating profiles with endpoint detection
• HA/RS-24 provides two discrete operational modes: vortex (4 mm orbital diameter) and plate oscillation—with digital speed display and countdown timer up to 999 minutes
• HAD-Oxi 1970i includes IP67-rated housing, 100 m cable option with TA 197 deep-water electrode, and GLP-compliant data storage for 800 measurements
• HGYC-2/3 maintains ±0.2°C accuracy in pharmacopeial range (30–50°C) and incorporates 37±1°C pre-conditioning bath for adhesive matrix stabilization
• HAD-10A supports four programmable test currents (2 A down to 2 mA), built-in thermal printout, and internal rechargeable battery for field use

Sample Compatibility & Compliance

The system supports diverse sample types across regulated workflows: airborne particulates (PM_2.5, PM₁₀) collected via HAD-CY2 onto quartz or PTFE filters; metallic conductors and contact interfaces measured by HAD-PC9A per ASTM B570; hygroscopic organics (tobacco, feedstuffs, APIs) analyzed by HALSC50 per USP ; viscous formulations and cell suspensions homogenized by HA/RS-24 under ISO 20776-1; aqueous environmental samples tested by HAD-Oxi 1970i per ISO 5814; transdermal patches evaluated per ChP using HGYC-2/3; and power equipment windings verified by HAD-10A per IEC 60076-3. All instruments meet electromagnetic compatibility (EMC) per IEC 61326-1 and safety standards IEC 61010-1. Data integrity is maintained through timestamped, non-editable memory logs compliant with FDA 21 CFR Part 11 requirements when paired with KOM Pilot software.

Software & Data Management

Each instrument incorporates embedded firmware supporting standardized data export protocols. The HALSC50 and HAD-Oxi 1970i provide native RS232 output compatible with LIMS integration via ASCII-based command sets. The HAD-Oxi 1970i additionally supports analog voltage output (0–20 mA or 0–5 V) for SCADA interfacing. KOM Pilot software (optional) enables remote configuration, batch calibration management, and PDF report generation with digital signatures for audit readiness. All stored datasets include instrument ID, operator ID, timestamp, environmental parameters (T, P, salinity), and measurement metadata—enabling full traceability under GLP and GMP frameworks. No cloud dependency: all data reside locally until explicitly exported.

Applications

These instruments serve cross-sectoral technical functions: ambient air quality monitoring (EPA, EU Directive 2008/50/EC); electrical infrastructure maintenance (substation transformer diagnostics); pharmaceutical stability testing (ICH Q1–Q5); food safety validation (AOAC 992.15 moisture method); wastewater treatment process control (DO optimization per ISO 9001); medical device adhesive qualification (ISO 10993-5); and lubricant degradation analysis (ASTM D975 acid number). Field deployment is supported by lightweight construction (HAD-CY2: 2.3 kg; HAD-Oxi 1970i: 0.85 kg), extended battery life (>12 h continuous operation), and ruggedized enclosures rated IP67 or equivalent.

FAQ

Does the HAD-CY2 comply with ISO 12103-1 for aerosol sampling?
Yes—the dual-channel design with certified flow accuracy (±2.5%) and standard condition correction satisfies ISO 12103-1 Annex B requirements for gravimetric particulate collection.

Can the HAD-PC9A measure resistances below 100 μΩ reliably?
Yes—using the 20 mΩ range and four-wire Kelvin connection, it achieves ±0.1% accuracy down to 10 μΩ, validated per ASTM E1012.

Is HALSC50 suitable for volatile solvent-containing samples?
Not recommended—halogen heating may accelerate evaporation of low-boiling solvents; use only for thermally stable matrices per manufacturer’s safety guidelines.

Does the HA/RS-24 support 384-well plates?
No—it is optimized for 96-well plates and standard microcentrifuge tubes; plate oscillation mode is calibrated for ANSI/SLAS footprint formats.

What calibration standards are required for HAD-Oxi 1970i field use?
Zero-point calibration with sodium sulfite solution and span calibration with air-saturated water at known temperature/salinity—per ISO 5814 Clause 7.2.

Is HGYC-2/3 validated for ChP 2020 gelatin-based plasters?
Yes—the 37±1°C preconditioning bath and 1.0–1.5°C/min ramp rate meet mandatory thermal protocol specifications in the monograph.

Does HAD-10A generate test reports compliant with IEC 60076-3 Annex D?
Yes—printed or exported reports include test current, ambient temperature, resistance value, deviation from nameplate, and pass/fail flag per clause 10.2.