Portable Surface Particle Counter
Product Description
The PMT® Dual-Mode High Pressure Diffuser (DHPD)
is designed for the pharmaceutical, food & beverage, cosmetic, and medical device industries where critical cleanliness standards are required.
The system offers two operating modes:
- Mode 1: Sampling before decompression – ensures microorganisms remain active, avoiding cell rupture caused by sudden pressure drops.
- Mode 2: Sampling after decompression – for particle monitoring at atmospheric pressure.
The DHPD features built-in flow and pressure sensors to ensure accurate sampling speed and volume. It is compatible with common process gases such as Air, N₂, CO₂, Ar, and O₂.
With automatic sampling, a 4.3″ touchscreen display, USB connectivity, and 40,000 record storage, the device provides versatile monitoring. Its anodized aluminum housing, 6-hour rechargeable lithium battery, and 24-month warranty ensure long-term reliability in demanding industrial applications.
Technical Specification
The Dual-Mode High Pressure Diffuser supports two operating modes: pre- and post-decompression sampling. In Mode 1, the flow rate is 10–100 L/min, with sampling volumes of 20–9,999 L. The high-pressure sampling head measures 140 × 230 mm and weighs 1.5 kg. In Mode 2, the flow rate is ≥2 L/min at atmospheric pressure.
The device operates at an inlet pressure of 1–8 bar. The inlet diameter is 8 mm, and the outlet is available in multiple sizes (6, 8, 12, 14, 16, 20 mm).
It features a 10.8 V, 6800 mAh lithium-ion battery with a runtime of over 6 hours. The housing is made of anodized aluminum. Dimensions are 123 × 190 × 120 mm, and the weight is 3.2 kg.
Up to 40,000 records can be stored (20,000 per mode). A 4.3″ touchscreen is included, with USB connectivity. The operating temperature range is 5–30 °C, and storage conditions are 0–40 °C. The warranty period is 24 months.
