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Product Details
Product Introduction
The HM-ZHS Online Near-Infrared Moisture Analyzer from HM Instruments is a real-time, non-contact moisture measurement system designed for continuous monitoring on industrial production lines. Using near-infrared absorption spectroscopy, it detects how water molecules absorb light at 1.45 μm and 1.94 μm wavelengths, converting reflected signals into accurate moisture readings from 0% to 60% with ±0.1% to ±0.5% accuracy depending on the material.
The system replaces slow lab sampling methods with instant on-line data, enabling immediate process adjustments that reduce off-spec batches and material waste. With its dual-detector architecture, 7-band 14-optical-path design, and Android 10 touchscreen interface, the HM-ZHS delivers measurement capabilities typically found only in premium-priced systems.
Applications
- Food and food processing: starch, flour, protein powder, milk powder, tomato powder, sugar, salt, MSG, tea, food additives
- Pharmaceutical: pharmaceutical granules, medicinal powder
- Chemical: chemical raw material powders, granules, fertilizers, detergents
- Paper: paperboard, paper, packaging paper
- Textile: cotton cloth, fabric
- Wood: timber, wood boards, sawdust
- Building materials: cement, concrete, mineral sand
- Animal feed: feed pellets, grain powders
Features
- Android 10 operating system with 7-inch 1024×600 HD touchscreen for intuitive UI interaction and enhanced visual experience
- Dual-detector measurement architecture: main and auxiliary detectors compare infrared signals at each wavelength, effectively eliminating instrument drift for stable online measurement
- Multiple onboard temperature sensors provide secondary compensation for detector temperature drift and monitor overall system health
- 7-band, 14-optical-path design improves tolerance for surface variations in measured materials, ensuring more accurate and consistent readings
- High-quality imported halogen light source with high efficiency and long lifespan, reducing maintenance costs
- Filter-based wavelength selection design for precise spectral separation
- Imported high-sensitivity detectors improve signal-to-noise ratio and data confidence
- Rapid detection response with adjustable filter range (0% to 2.5%), single detection in seconds, suitable for rapid screening of large-batch online products
- Onboard software supports user-built quantitative models: users can independently sample, build, validate, and maintain calibration models based on their own material characteristics
- Results uploadable via Wi-Fi or Ethernet to a self-developed cloud data management platform, free for users with no additional cost
Main Parameters
| Parameter | Value |
|---|---|
| Measurement range | 0% - 60% (material-dependent) |
| Measurement accuracy | ±0.1% - ±0.5% (material-dependent) |
| Spot diameter | 60 mm (at 250 mm working distance) |
| Light source | Imported high-efficiency halogen lamp |
| Working distance | 250 ± 50 mm |
| Response time | 1 - 80 s adjustable |
Technical Parameters
| Parameter | Value |
|---|---|
| Data acquisition period | 1 - 120 min adjustable |
| Probe sealing grade | IP65 |
| Detection channels | 200 |
| Probe material | High boron quartz glass |
| Auto alarm | Low-limit alarm, high-limit alarm, alarm records queryable |
| Storage capacity | 16GB, 20,000 results |
| Interface configuration | 1 channel low/high limit alarm 4-20 mA, 1 group dry contact switch output, 1 RS485 for secondary development |
| Power | ≤65 W |
| Probe arm mounting tube diameter | 25 mm - 32 mm |
| Probe dimensions | 380 mm × 180 mm × 180 mm |
| Host dimensions | 235 mm × 170 mm × 102 mm |
| Probe weight | 10 kg |
| Host weight | 5 kg |
Expert Review
The HM-ZHS combines dual-detector stability, multi-band optical precision, and user-friendly Android operation in a single system. Its free cloud platform and onboard model-building capability make it a practical choice for production lines transitioning from lab sampling to real-time moisture control. For deeper analysis, see our brand recommendation article and technical FAQ.
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