HM-H3 Four-Channel Air Particulate Sampler

Product Introduction

The HM-H3 is a four-channel comprehensive air particulate sampler from HM Instruments, purpose-built for environmental monitoring stations that require simultaneous multi-project sampling. It integrates dual constant-temperature/constant-flow gaseous channels (Channel A/B), dual constant-flow gaseous channels (Channel C/D), and a particulate sampling channel into a single compact unit measuring 165 × 330 × 275 mm and weighing approximately 4.0 kg. This configuration enables concurrent collection of TSP, PM10, or PM2.5 particulate samples alongside up to four gaseous pollutant samples — such as SO2, NOx, and other regulated substances — without requiring multiple instruments. The imported sampling pump delivers particulate flow from 10 to 130 L/min with accuracy better than ±2.0%, while gaseous channels operate at 0.100 to 1.000 L/min with constant-temperature control ensuring sample integrity under varying ambient conditions. Automatic pre-gauge temperature and pressure measurement with standard-condition volume calculation, power failure data protection with auto-resume, and a 7-inch high-brightness color touchscreen make the HM-H3 a reliable and efficient solution for comprehensive air quality monitoring.

Applications

• Comprehensive environmental monitoring stations — simultaneous TSP/PM10/PM2.5 and multi-gas sampling
• Ambient air quality assessment — SO2, NOx, and particulate co-monitoring per HJ 93-2026
• Indoor air quality surveys — GB/T 18883-2022 compliant multi-parameter sampling
• Workplace exposure monitoring — multi-zone parallel gaseous and particulate collection
• Source apportionment studies — filter-based particulate sampling with concurrent gas characterization
• Emergency pollution incident response — rapid multi-channel deployment for event characterization
• Research and academic projects — flexible four-channel configuration for experimental design

Functional Performance

1. Four-channel comprehensive configuration: dual constant-temperature/constant-flow (Ch A/B) + dual constant-flow (Ch C/D) + particulate channel for true parallel multi-project sampling.
2. Particulate sampling flow range (10–130) L/min with accuracy better than ±2.0%, compatible with TSP, PM10, and PM2.5 cutting heads.
3. Gaseous channel flow range (0.100–1.000) L/min with constant-temperature control on Ch A/B for sample integrity under varying ambient conditions.
4. Flow stability better than ±2.0% across all channels, ensuring consistent sample volumes throughout extended monitoring periods.
5. 7.0-inch wide-temperature high-brightness color touchscreen with dual button/touch operation for reliable field use under direct sunlight.
6. Automatic pre-gauge temperature and pressure measurement with real-time standard-condition volume calculation.
7. Power failure data protection — sampling data automatically saved and sampling resumes after power restoration.
8. Imported sampling pump with high load capacity, low noise (<60 dB(A)), and stable long-term flow output.
9. Sampling time range 1 min to 99 h 59 min with accuracy better than ±0.2%, supporting equal-interval and continuous sampling modes.
10. Atmospheric pressure measurement (50–110) kPa and pre-gauge pressure (-35–35) kPa for accurate flow compensation.
11. Compact dimensions 165 × 330 × 275 mm at approximately 4.0 kg for portable field deployment between monitoring sites.

Main Parameters

Technical Parameters

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