HM-BL02 Portable COD & Ammonia Nitrogen Analyzer

Product Introduction

The HM-BL02 Portable COD & Ammonia Nitrogen Analyzer from HM Instruments is purpose-built for the dual-parameter monitoring workflow that defines daily wastewater treatment plant operations. COD and ammonia nitrogen are the two most critical discharge compliance parameters regulated worldwide — they appear in virtually every effluent discharge permit and form the backbone of routine water quality monitoring programs. The HM-BL02 delivers both measurements in a single instrument, eliminating the inefficiency of operating separate single-parameter analyzers and avoiding the unnecessary cost and complexity of triple- or quad-parameter models when your primary compliance focus is on organic load and nutrient discharge.

Utilizing spectrophotometric methods — dichromate oxidation for COD and both Nessler and salicylate reagent systems for ammonia nitrogen — the HM-BL02 achieves 0.001 Abs absorbance resolution through its dual-wavelength LED system (420 and 620 nm). The integrated digestion module handles COD sample preparation within the same enclosure, while the Nessler and salicylate ammonia nitrogen methods offer overlapping range coverage from 0.025 mg/L to 200 mg/L, ensuring accurate quantification across clean receiving waters and high-load industrial influent. At 8.3 kg with AC 220V and lithium battery dual power supply, 4G and Wi-Fi connectivity, built-in GPS positioning, cloud platform integration, and an on-board thermal printer, the HM-BL02 provides a complete field-to-report workflow for wastewater treatment monitoring teams.

Applications

• Municipal wastewater treatment plants — routine influent load and effluent compliance monitoring for COD and ammonia nitrogen discharge permits

• Industrial wastewater pre-treatment verification — confirming COD reduction and ammonia nitrogen removal before discharge

• Chemical and petrochemical facilities — monitoring organic pollutant load (COD) and nutrient discharge (NH3-N) in process effluent

• Food and beverage processing plants — tracking organic waste load and ammonia nitrogen in production wastewater

• Pharmaceutical manufacturing effluent — dual-parameter compliance verification for COD and NH3-N limits

• Environmental monitoring stations — surface water quality assessment focusing on organic pollution and nutrient enrichment

• Aquaculture water quality management — maintaining ammonia nitrogen levels within safe thresholds

• Construction site stormwater runoff — verifying COD and ammonia nitrogen concentrations in permit compliance

Functional Performance

1. Dual-wavelength LED spectrophotometric system (420/620 nm) covering both COD and ammonia nitrogen detection.

2. COD measurement via dichromate method with three overlapping ranges: 5–150, 15–1,500, and 30–1,500 mg/L.

3. Ammonia nitrogen measurement via Nessler method (0.05–7.5 / 0.2–15 / 2–50 / 4–200 mg/L) and salicylate method (0.025–2.5 / 0.5–25 mg/L).

4. Integrated digestion module for complete on-site COD sample preparation without external heating equipment.

5. 4G and Wi-Fi wireless connectivity for real-time cloud platform data upload.

6. Built-in GPS positioning for geotagging every measurement record.

7. Thermal printer for immediate on-site result documentation.

8. 0.001 Abs absorbance resolution for precise low-concentration detection across both parameters.

9. AC 220V and lithium battery dual power supply for both laboratory and field deployment.

10. Cloud platform integration enabling remote data access, compliance report generation, and threshold exceedance alerts.

11. Compact 430 × 350 × 190 mm enclosure at 8.3 kg — portable for single-operator field campaigns.

12. Dual-parameter workflow efficiency — measure COD and ammonia nitrogen in one deployment without switching instruments.

Main Parameters

Technical Parameters

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