Product Introduction
Water quality regulations worldwide are tightening discharge limits for nitrogen and phosphorus compounds. Compliance programs increasingly demand simultaneous measurement of four nutrient indicators — Chemical Oxygen Demand (COD), ammonia nitrogen (NH3-N), total phosphorus (TP), and total nitrogen (TN) — to assess organic pollution, nutrient loading, and treatment efficiency. Laboratories relying on separate instruments face multiple calibration routines, inconsistent sampling timing, and fragmented data management.
The HM-B04 Pro, developed by HM Instruments, is the full-configuration flagship of the HM-B portable analyzer series. It integrates four-parameter spectrophotometric detection with a four-channel electrode sensor module supporting pH, dissolved oxygen, conductivity, turbidity, and dozens of additional parameters in one field-deployable platform. This eliminates instrument-switching and ensures all four nutrient indicators are measured from the same sample at the same moment.
Built on Android 7.1.1 with an 8-inch HD touchscreen, the analyzer features a dual-zone 8-hole digester with PID control (±0.5°C), a 360° precision rotating colorimetric holder, and a 48V 8Ah lithium battery delivering over 6 hours of combined operation. With 10 million data set storage, GPS positioning, WiFi/4G/RJ45 cloud connectivity, and thermal printer with QR code output, the HM-B04 Pro functions as a self-contained compliance workstation.
Applications
- Wastewater Discharge Compliance: Four-parameter measurement to verify effluent meets regulatory permit limits
- Biological Nutrient Removal: Real-time tracking of COD, ammonia, phosphorus, and nitrogen across A2/O, SBR, and MBR stages
- Environmental Monitoring Networks: Routine surface water and reservoir sampling for water quality classification
- Agricultural Runoff Programs: Field measurement of nutrient concentrations from cropland and aquaculture facilities
- Industrial Pretreatment: Nutrient load assessment for food, pharmaceutical, and textile plant effluent
- Drinking Water Source Protection: Nutrient profiling of reservoirs and intakes to detect contamination
- Environmental Impact Assessment: Baseline nutrient monitoring for projects near sensitive ecosystems
Key Features and Advantages
- Four-parameter spectrophotometric platform: COD, ammonia nitrogen, total phosphorus, and total nitrogen in one portable unit
- Four sensor interfaces for concurrent pH, dissolved oxygen, conductivity, and turbidity alongside spectrophotometric detection
- Dual-zone 8-hole digester with independent PID control (±0.5°C) for simultaneous multi-temperature digestion
- Dual colorimetric system: 16mm pre-made tubes and cuvettes up to 50mm
- 360° precision rotating holder for stable measurements across all four channels
- 48V 8Ah lithium battery: 6+ hours of combined digestion and detection
- Six preset digestion programs plus 4 custom modes
- Android 7.1.1 with 8-inch HD touchscreen (1024×768) and built-in tutorial videos
- 10 million data set storage with GPS positioning for audit traceability
- WiFi, 4G, and RJ45 cloud connectivity for real-time regulatory data upload
- Thermal printer with QR code for on-site compliance reports
- User-built standard curves and factory-prepared reagent consumables
- Simultaneous detection, digestion, and sensor measurement
- Automatic calibration with customizable detection items
Technical Specifications
| Specification | Value |
|---|
| Model | HM-B04 Pro |
| Spectrophotometric Parameters | COD, Ammonia Nitrogen, Total Phosphorus, Total Nitrogen |
| Sensor Interfaces | 4 ports, simultaneous insertion and detection |
| Indication Error | ≤ ±5% |
| Repeatability | < 0.5% |
| Stability | < 0.5% |
| Resolution | 0.001 |
| Optical Stability | ≤ ±0.001 Abs/20 min (100,000-hour light source life) |
| Colorimetric Method | 16mm pre-made test tubes; cuvettes 50mm and below |
| Display | 8-inch HD touchscreen, 1024×768 |
| Operating System | Android smart system (7.1.1) |
| Automatic Calibration | Built-in |
| Printer | Micro thermal printer |
| Operation Videos | 4+ items with step-by-step demos |
| Data Upload | Wireless cloud upload |
| Battery | 48V 8Ah lithium battery |
| Operating Time | 6+ hours (COD digestion and detection together) |
| Data Transfer | USB, RJ45, WiFi |
| Digestion Capacity | 8 vials, dual-zone independent control |
| Heating Rate | 165°C within 10 minutes |
| Digestion Temperature | Room temperature – 200°C adjustable |
| Digestion Volume | 0–10 ml |
| Temperature Control | Smart PID, ±0.5°C accuracy |
| Preset Digestion Modes | COD, total phosphorus, total nitrogen, permanganate index, sulfate, formaldehyde |
| Custom Digestion Modes | 4 |
| Data Storage | 10 million sets |
| Power Supply | DC48V2A |
| Dimensions | 430 × 350 × 200 mm |
| Weight | 11 kg |
FAQ
Q1: What advantage does four-parameter testing (COD + NH3-N + TP + TN) provide over three-parameter or single-parameter analyzers?
Many regulations now require reporting all four indicators — COD for organic load, ammonia nitrogen for bioavailable nitrogen, total phosphorus as the limiting nutrient in freshwater, and total nitrogen for complete nitrogen balance. A four-parameter analyzer measures all four from the same sample simultaneously, eliminating temporal inconsistency and ensuring data coherence for compliance audits.
Q2: How does the HM-B04 Pro support wastewater treatment plants implementing total nitrogen discharge limits?
Plants with total nitrogen permits must track nitrogen transformation through nitrification, denitrification, and assimilation. The HM-B04 Pro's simultaneous four-parameter detection allows operators to analyze samples from multiple process stages in one session. The dual-zone digester processes COD and total nitrogen samples at different temperatures simultaneously, with all results available within minutes.
Q3: Can the sensor module complement the four spectrophotometric parameters for complete water quality profiling?
Yes. The four sensor interfaces accept probes for pH, ORP, dissolved oxygen (fluorescence method), conductivity, turbidity, and many other parameters. When deployed alongside the four spectrophotometric tests, operators obtain a comprehensive water quality snapshot from one sampling point — invaluable for surveys where dissolved oxygen and pH must correlate with nutrient data.
Q4: How does GPS positioning and cloud connectivity enhance compliance data management?
The HM-B04 Pro records GPS coordinates with every data set. Combined with WiFi, 4G, or RJ45 cloud upload, the 10 million data set storage creates a digital audit trail. For facilities with multiple discharge points or large watershed networks, this eliminates manual logging errors and supports defensible compliance documentation.
Q5: Is the HM-B04 Pro suitable for both field deployment and fixed laboratory use?
Yes. The portable case with 48V 8Ah battery (6+ hours) makes it self-sufficient for field work. The DC48V2A adapter also enables continuous mains operation at fixed stations. All functions — digester, printer, cloud connectivity — work identically in both modes.
Q6: How does the HM-B04 Pro compare with the HM-B03 Pro in the same series?
The HM-B04 Pro adds total nitrogen as the fourth spectrophotometric parameter. It is the full-configuration model for programs requiring complete nitrogen balance, while the HM-B03 Pro covers three-parameter eutrophication assessment. Both share the same hardware, sensor module, and digester.
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