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I. Introduction
The Model HAL-HPC300 handheld optical particle counter utilizes the laser technology
for single particle detection. The scattering of light from the particles in the sampling air
steam is converted into electrical pulses, which is then measured and calculated as a
particle size. The HAL-HPC600 consists of a handheld set with a main base unit that
allows users to conduct the sampling around with a handheld set while easily
expanding to multiple functionalities with a base unit. These extended functions
include data downloading, data real-time printing, software upgrading, and battery
charging, etc. In addition to USB and RS232 interfaces, the RJ45 interface allows users
to conduct the remote sampling away from the sampling location.
The HAL-HPC300 has up to three adjustable particle size channels starting at 0.3
microns at a flow of .1 CFM (2.83 LPM). Particle count data is displayed as
Cumulative, Differential or Concentration mode (Counts/Liter or Counts/Cubic foot,
Counts/Cubic Meter). The Model HAL-HPC300 can also include a digital temperature
and relative humidity probe, back lit interface and is capable of storing 3,000 sample
records. It is in compliance with the international standards (JIS B 9925:1997 and
ISO14644-1) and support both metric and English systems.
