












Product Introduction
National central grain reserve depots, provincial cereal quality inspection centers, and major agricultural trading terminals operate under strict national security mandates. During seasonal grain intake campaigns, central facilities must process hundreds of grain trucks and rail cars daily, requiring rapid, definitive determination of toxic heavy metals such as cadmium (Cd) and lead (Pb) under GB 2762-2022 standards. Standard single-channel instruments and slow wet-chemistry acid digestion methods create intolerable operational bottlenecks, resulting in costly logistical delays and risks of unauthorized contaminated deliveries. The HM-FZ3-LS High-Throughput Grain Heavy Metal Analyzer represents the pinnacle of field-deployable electrochemical analytical power. Featuring four completely independent, synchronously or asynchronously operated voltammetric measurement channels, it quadruples analytical capacity on a single bench space. Combining room-temperature digestion-free extraction, patented magnetic electrode holders, a large 10-inch Android interface, and complete LIMS connectivity, the HM-FZ3-LS empowers high-volume testing facilities to safeguard national grain security efficiently and accurately.
For decentralized branch stations with lower daily volume, explore our cost-effective dual-channel grain heavy metal analyzer.
Applications
National Central Grain Reserves: Massive multi-batch incoming inspection during national rotation and grain acquisition programs.
Provincial & Municipal Grain Quality Centers: High-capacity statutory surveillance, arbitration testing, and regulatory market screening.
Mega-Scale Rice Milling & Flour Hubs: Continuous around-the-clock testing of grain receiving silos and multi-line flour streams.
Port Grain Terminals & Strategic Silos: High-speed verification of bulk grain ships, unit trains, and container shipments.
Third-Party Certified Testing Laboratories: Processing hundreds of client food and agricultural samples daily under ISO/IEC 17025 protocols.
Key Features & Advantages
Quad Independent Potentiostats: Four fully isolated measurement cells execute four simultaneous or asynchronous voltammetric tests without crosstalk.
Quadrupled Laboratory Throughput: Complete up to 16 to 20 grain batch evaluations per hour with a single workstation and operator team.
Expansive 10-Inch Android Command Center: Industrial touchscreen displays all four channels simultaneously with live voltammetric curve tracking.
Digestion-Free Fast Pretreatment: Room-temperature dilute acid extraction dissolves target metal ions in under 10 minutes without acid digestors.
Quad Patented Magnetic Connectors: Patented magnetic elastic electrode mounts protect sensors against mechanical wear and guarantee microampere precision.
Disposable Screen-Printed Sensor Strips: No manual polishing, zero cross-contamination, and zero toxic mercury drop generation.
Industrial 20,000 mAh Battery Backup: Heavy-duty power system ensures all four channels run continuously during fieldwork or power grid failures.
Tamper-Proof Real-Time Thermal Receipts: Onboard printer produces formal inspection vouchers featuring timestamps, batch numbers, and verification QR codes.
Exceeds 50,000 Stored Records: High-capacity onboard flash memory stores extensive testing logs, searchable by multiple criteria and exportable via USB.
Full Compliance with JJF 2037-2023: Completely calibrated in accordance with national technical specifications for voltammetric instrumentation.
Multi-Element Firmware Architecture: Standard cadmium and lead quantification can be upgraded seamlessly to include arsenic, mercury, copper, and zinc.
Seamless LIMS & Cloud Connectivity: High-speed Wi-Fi and USB interfaces stream batch data directly into grain reserve ERP and LIMS systems.
Technical Specifications
| Specification Category | Technical Parameter |
|---|---|
| Detection Principle | Anodic Stripping Voltammetry (ASV) with preconcentration and stripping phases |
| Analytical Channels | Quad Channels (four independent simultaneous units) |
| Target Contaminants | Standard: Cadmium (Cd), Lead (Pb); Expandable: As, Hg, Cu, Cr, Zn |
| Calibration Range (Grain) | 0.03 ~ 1.0 mg/kg (Cd, Pb in cereal matrices) |
| Limit of Detection (LOD) | 0.01 mg/kg (Cd, Pb) |
| Instrument Error | Within +/-10% indication error |
| Electrochemical Resolution | 0.5 ppb |
| Measurement Precision | RSD <= 5% |
| Instrument Scan Duration | 280 seconds per sample testing run |
| Sample Extraction Time | <= 15 minutes (room-temperature dilute acid extraction, no acid digestion) |
| Electrode Architecture | Disposable screen-printed three-electrode strips (ready to use, no manual polishing) |
| Electrode Connector Mount | Patented magnetic elastic contact holder ensuring wear-free electrical coupling |
| Operating Console & System | 10-inch HD full-color touchscreen, Android system |
| Data Interfaces | Wi-Fi and USB, supporting LIMS synchronization and OTA cloud firmware updates |
| Data Storage Capacity | Non-volatile onboard storage >= 50,000 complete test logs |
| Report Generation | Built-in high-speed thermal printer with timestamps and verification QR codes |
| Power System & Battery | 20,000 mAh lithium battery pack, DC 12.6V 2A |
| Environmental Range | Operating temperature: 5 ~ 40 deg C, Humidity: <= 80% RH |
| Form Factor & Weight | 480 mm x 296 mm x 156 mm, 7.6 kg |
| Regulatory Standards | JJF 2037-2023, GB 2762-2022, T/GXAGS 010-2025 |
FAQ
Q: How does the four-channel platform prevent sample bottlenecks during major grain procurement campaigns?
A: During peak harvest campaigns, grain depots frequently receive over 100 trucks daily. A single-channel analyzer running 20-minute cycles can process at most 3 to 4 samples per hour, causing extensive queues. The HM-FZ3-LS provides four asynchronous potentiostats operating concurrently, allowing an operator team to evaluate up to 16 samples per hour on a single instrument. While Channel 1 strips, Channel 2 enriches, and Channels 3 and 4 are being loaded, creating a smooth, continuous analytical pipeline.
Q: Can the HM-FZ3-LS be integrated directly into our enterprise LIMS and grain depot management software?
A: Yes. The HM-FZ3-LS features native dual-band Wi-Fi and high-speed USB interfaces with standardized RESTful API and JSON data export capabilities. Analytical records—including sample ID, timestamp, channel identifier, voltammetric curve raw data, and calculated concentration values—can be pushed automatically to centralized LIMS databases or grain depot logistics ERPs, eliminating manual data entry errors.
Q: How is electrical and signal isolation maintained across all four channels?
A: The HM-FZ3-LS utilizes isolated power supply rails and dedicated analog front-end (AFE) potentiostats for each channel. Shielded coaxial routing and differential analog-to-digital converters (ADCs) prevent galvanic coupling and electromagnetic interference between adjacent measurement cells. Even when Channel 1 executes high-current stripping while Channel 4 performs low-potential deposition, each signal remains pristine with a noise floor below 0.1 nA.
Q: What training is required for laboratory technicians to operate the HM-FZ3-LS?
A: Minimal specialized training is required. Because the system relies on standardized room-temperature chemical extraction reagents and pre-calibrated disposable screen-printed sensors, operators do not need advanced chemical degrees or specialized voltammetry expertise. Technicians typically master the entire workflow—sample grinding, reagent extraction, strip insertion, and touchscreen operation—within a 2-hour training session.
Q: How does the instrument handle sudden power outages in field silos?
A: The HM-FZ3-LS is equipped with an integrated 20,000 mAh industrial-grade lithium battery pack that functions as an instantaneous uninterruptible power supply (UPS). If the external 220V power grid drops out, the system continues operating all four channels without interruption or data loss. In standalone battery mode, it delivers 8 to 10 hours of heavy-duty continuous field testing.
Article address:https://www.hmfoodtesting.com/voltammetric-heavy-metal-analyzer/high-throughput-grain-metal-detector.html
Current
location:
+86
17853698681