HM-G1800 Food Testing Instrument

Product Introduction

The HM-G1800 is an entry-level comprehensive food testing instrument from HM Instruments (恒美智造), engineered to deliver multi-category food safety screening capability in a compact, cost-effective format. Built around an 18-channel optical detection platform with a 4-wavelength cold light source (410 nm, 520 nm, 590 nm, and 630 nm), the instrument employs optical path switching technology to achieve up to 64 equivalent measurement wavelengths — providing the same spectral flexibility as higher-tier models in a streamlined configuration. With a library of over 200 pre-calibrated test items spanning 14 categories, the HM-G1800 addresses the core testing requirements of food quality laboratories, agricultural product inspection stations, and food processing quality control departments.

The instrument features a 7-inch touchscreen display driven by an ARM Cortex-A7 RK3288 processor at 1.88 GHz, delivering responsive operation in a more compact interface footprint. A built-in 6 Ah lithium battery provides AC/DC dual power capability for both benchtop operation and mobile field screening. The 200,000-record onboard storage supports traceable data management, while USB and Ethernet interfaces enable integration with external systems. For practical guidance on setting up routine food screening protocols, see our introduction to rapid food screening technology for routine inspection.

Detection Categories

• Food Additives: preservatives, sweeteners, colorants, bleaching agents, and processing aids
• Toxic and Harmful Substances: formaldehyde, sulfur dioxide, nitrite, hydrogen peroxide, and sodium formaldehyde sulfoxylate
• Pesticide Residues: organophosphorus and carbamate screening via enzyme inhibition rate
• Veterinary Drug Residues: antibiotics, hormones, and growth promoters in animal-derived foods
• Heavy Metals: lead, cadmium, mercury, arsenic, and chromium contamination testing
• Spoiled Meat Indicators: volatile basic nitrogen and protein degradation markers
• Nutritional Fortifiers: protein content, vitamins, and mineral supplements
• Antibiotic Residues: tetracyclines, sulfonamides, quinolones, and nitrofurans
• Hormone Residues: synthetic hormone detection in animal-derived food products
• Mycotoxins: aflatoxin B1, deoxynivalenol, zearalenone, and ochratoxin A
• Aquatic Product Safety: histamine, volatile basic nitrogen, and freshness indices
• Grain and Oil Products: peroxide value, acid value, and mycotoxin contamination
• Beverages and Liquor: methanol, formaldehyde, and artificial sweetener content
• Edible Pigments: synthetic colorant identification and quantification

Functional Performance / Features

1. 18 independent detection channels providing efficient batch sample processing for routine throughput requirements
2. 4-wavelength cold light source (410/520/590/630 nm) with optical path switching to 64 equivalent wavelengths for broad analyte coverage
3. Compact 7-inch touchscreen interface with streamlined graphical navigation for straightforward daily operation
4. ARM Cortex-A7 RK3288 processor at 1.88 GHz delivering reliable data processing for curve fitting and concentration calculation
5. 200,000-record internal storage with timestamped data logging supporting quality management documentation
6. Built-in 6 Ah lithium battery enabling mobile inspection capability with AC mains operation for laboratory use
7. 200+ pre-calibrated test protocols across 14 food safety categories covering essential regulatory parameters
8. Automatic wavelength selection and channel blank calibration minimizing operator steps and improving throughput
9. USB interface for data export and report generation supporting regulatory documentation requirements
10. Space-efficient benchtop design (43 × 35 × 19 cm, 5.2 kg net weight) suited for laboratories with limited workspace
11. User-expandable test item library accommodating new parameters as testing requirements evolve
12. Built-in quality control verification protocols ensuring measurement consistency across routine testing sessions

Main Parameters

Parameter	Specification
Display	7-inch touchscreen
Detection Channels	18 channels, independent reading
Light Source	4-wavelength cold light source (410/520/590/630 nm), optical path switching up to 64 wavelengths
Test Items	200+ items across 14 detection categories
Processor	ARM Cortex-A7 RK3288, 1.88 GHz
Data Storage	200,000 test records
Power Supply	AC mains / built-in 6 Ah lithium battery
Dimensions	43 × 35 × 19 cm
Net Weight	5.2 kg
Packaged Weight	8.6 kg

Technical Parameters — Detection Limits and Ranges

Test Item	Detection Limit	Detection Range
Formaldehyde	0.5 mg/kg	2 — 26 mg/kg
Nitrite	0.5 mg/kg	0.5 — 20 mg/kg
Sulfur Dioxide	0.018 g/kg	0.03 — 1 g/kg
Sodium Formaldehyde Sulfoxylate	0.2 mg/kg	0.05 — 10 mg/kg
Milk Protein	0.01 g/100mL	0.57 — 10 g/100mL
Boric Acid / Borax	0.1 mg/kg	0.43 — 5.96 mg/kg
Hydrogen Peroxide	0.05 mg/kg	7 — 130 mg/kg
Nitrate	0.5 mg/kg	84.77 — 1,612.03 mg/kg
Heavy Metal — Lead	0.05 mg/kg	0.22 — 3.08 mg/kg

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