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1. Introduction
Figure 1: HAL-HPC601
Figure 1 shows the HAL-HPC601 six-channel handheld particle counter. The HAL-
HPC601 handheld optical particle counter utilizes laser technology for single particle
detection. A sampling flow is directed through a proprietary chamber designed to collect
scattered light and generate electrical pulses proportional to the size of the incident
particles. The HAL-HPC601 is a completely self-contained particle counter, that is, no
other parts are required to start monitoring or making particle count measurements. A
plethora of optional accessories are available to increase measurement confidence and
accuracy. Included software allows users to download the unit’s stored records via USB
connection. Bluetooth enabled wireless printing is also available to minimize cabling
requirements.
