Handheld COD and Ammonia Nitrogen Analyzer for Wastewater Treatment Monitoring HM-S102

Product Introduction

Wastewater treatment operators face a persistent operational challenge: discharge permits almost universally require both Chemical Oxygen Demand (COD) and Ammonia Nitrogen (NH3-N) reporting, yet most facilities currently use two separate single-parameter instruments — one for organic pollution load and one for nutrient pollution. This means double the equipment investment, double the calibration workload, double the consumables inventory, and double the technician training requirements.

The HM-S102 solves this by integrating COD and ammonia nitrogen spectrophotometric measurement into a single 325-gram handheld device. At $810, it costs 37% less than purchasing a standalone HM-SCOD ($660) and HM-SNH-2 separately, while each parameter retains full compliance-grade accuracy: COD per HJ/T399-2007 across four ranges (10–15,000 mg/L) and ammonia nitrogen per HJ535-2009 across four ranges (0.05–200 mg/L). The Android smart operating system with 3.5-inch touch screen manages both test workflows seamlessly, and automatic wavelength selection switches between parameters without manual intervention. The included 6-chamber smart digestor handles sample preparation for both COD and ammonia nitrogen in the same batch, further streamlining the daily compliance testing workflow.

For food processing plants monitoring BOD/COD correlation alongside ammonia nitrogen in discharge water, pharmaceutical manufacturers tracking organic solvent residues and nitrogen removal efficiency, and municipal sewage treatment plants verifying daily influent and effluent quality — the HM-S102 consolidates two critical compliance tasks into a single, portable, cost-efficient workflow.

Applications

• Municipal wastewater treatment. Daily influent COD and effluent ammonia nitrogen compliance verification against discharge permit limits.

• Food and beverage processing. Monitoring organic load (COD) and nitrogen removal (NH3-N) in dairy, brewery, and juice production wastewater before discharge.

• Pharmaceutical effluent. Tracking COD from organic solvent residues and ammonia nitrogen from nitrogen-containing compound breakdown in pharmaceutical wastewater treatment.

• Paper and pulp industry. Simultaneous COD and NH3-N monitoring of pulping and bleaching effluent to meet regulatory discharge thresholds.

• Chemical manufacturing. Dual-parameter compliance testing for process wastewater containing organic compounds and nitrogen-based chemicals.

• Industrial park centralized treatment. Rapid dual-parameter screening at multiple discharge points across the facility.

Key Features & Advantages

1. Single-device dual-parameter workflow. COD and ammonia nitrogen measured on one instrument — no switching between separate detectors, no duplicate consumable kits.

2. 37% equipment cost reduction. One HM-S102 ($810) replaces a separate HM-SCOD ($660) plus HM-SNH-2, saving procurement budget without sacrificing per-parameter accuracy.

3. Four COD ranges (10–150, 20–450, 50–1,500, 500–15,000 mg/L). HJ/T399-2007 compliant coverage from low-concentration surface water to high-load industrial effluent.

4. Four ammonia nitrogen ranges (0.05–7.5, 0.2–15, 2–50, 4–200 mg/L). HJ535-2009 compliant coverage for wastewater discharge, surface water, and drinking water scenarios.

5. Automatic wavelength switching. The instrument selects the correct wavelength for COD or NH3-N measurement automatically — no manual filter swaps.

6. Android smart operating system. 3.5-inch color LCD touch screen manages both test workflows, calibration records, and data export in a unified interface.

7. Imported cold light source. Stable optical output with up to 100,000 hours lifespan, shared across both parameter measurements.

8. Integrated smart digestor (included). 6-chamber PID-controlled unit prepares both COD and ammonia nitrogen samples in the same batch — ±0.5 °C accuracy, maximum 200 °C.

9. Digestion-colorimetric integrated tube design. One tube serves both digestion and colorimetric reading, minimizing sample handling steps and contamination risk.

10. 80,000+ record onboard storage. Dual-parameter compliance data stored locally with timestamp, test item, and measurement value for audit traceability.

11. Type-C, WiFi, and Bluetooth connectivity. Direct upload to cloud monitoring platform for remote compliance trend analysis and regulatory reporting.

12. 8-hour continuous battery life. 5,600 mAh lithium battery sustains a full day of COD and ammonia nitrogen field testing on a single charge.

13. 325-gram handheld form factor (190 × 77 × 72 mm). True portability for on-site dual-parameter testing across multiple discharge monitoring points.

14. 0.001 absorbance sensitivity. Laboratory-grade resolution for both COD and NH3-N low-concentration detection requirements.

15. Repeatability and stability below 0.5%. Consistent dual-parameter results across daily compliance testing cycles.

Technical Specifications

FAQ

Q1: Why should I choose the HM-S102 dual-parameter detector instead of two separate COD and ammonia nitrogen instruments?

Most wastewater discharge permits require both COD and NH3-N reporting. The HM-S102 integrates both parameters in a single device, saving 37% on equipment cost compared to purchasing separate HM-SCOD and HM-SNH-2 units. You also halve calibration workload, consumables inventory, and training time. Each parameter retains full HJ-series standard compliance and spectrophotometric accuracy independently — there is no performance trade-off from the dual-parameter design.

Q2: Can the HM-S102 handle food and beverage processing wastewater monitoring?

Yes. Food processing wastewater typically contains high organic load (COD from dairy fats, brewery sugars, or juice pulp) and elevated ammonia nitrogen from protein degradation. The HM-S102 covers COD up to 15,000 mg/L (for high-BOD effluent) and NH3-N up to 200 mg/L (for nitrogen-rich discharge), with the lowest COD range (10–150 mg/L) and NH3-N range (0.05–7.5 mg/L) suitable for treated effluent verification before discharge.

Q3: Is the HM-S102 suitable for pharmaceutical industry effluent compliance?

Pharmaceutical wastewater often contains organic solvent residues contributing to elevated COD and nitrogen-containing compound breakdown products leading to ammonia nitrogen. The HM-S102 addresses both simultaneously, allowing process engineers to track organic removal efficiency and nitrogen treatment performance in one testing session. The included smart digestor handles the sample preparation step required by both HJ/T399-2007 (COD) and HJ535-2009 (NH3-N).

Q4: How does the HM-S102 support discharge permit compliance workflows?

Discharge permits for most Chinese industrial and municipal facilities specify COD and ammonia nitrogen as mandatory reporting parameters. The HM-S102 produces timestamped dual-parameter data records stored locally (80,000+ capacity) and uploadable via WiFi/Bluetooth to the cloud monitoring platform. This enables continuous compliance trend tracking and generates regulatory audit-ready documentation without manual data transcription between two separate instruments.

Q5: What is the recommended calibration schedule for dual-parameter operation?

Both COD and NH3-N channels should be calibrated at the start of each testing day using the standard solutions provided in the respective reagent kits. The Android system stores calibration curves independently for each parameter, so calibrating one does not affect the other. For high-frequency testing environments (daily compliance monitoring), weekly verification against known-concentration check standards is recommended to ensure both parameter channels remain within ±0.5% repeatability specification.

Q6: Does HM Instruments provide after-sales support for the HM-S102?

HM Instruments operates 280 service points across China with 4-hour response in capital cities and 8-hour response in prefecture-level cities. The HM-S102 carries a standard warranty with guaranteed spare parts supply for at least 10 years after discontinuation. Calibration verification and reagent supply are available through the national service network and authorized distributor partners for international customers.

Article address:https://www.hmwatertesting.cn/handheld-cod-detector/dual-parameter-cod-ammonia-wastewater-monitoring.html