5. INSTRUMENTS
a. MIE, Inc.
Model RAM-1 Features: Active sampling, with 10-mm nylon cyclone, reference scatterer built in, zero air built in, clean air protection for optics, several time constants for output, dehumidifier available, permissible for explosive atmospheres (optional).
Model MINIRAM Features: Passive sampling, with active sampling attachments (optional) that need a separate pump, automatically calculates running and shift average concentrations, permissible for explosive atmospheres, zero air attachment (optional).
b. MST Measurement Systems, Inc.
Model P-5 Features: Active sampling, labyrinth classifier on inlet, integrating or continuous readout, several measurement periods.
Model PCD-1 Features: Active sampling, respirable dust inlet, programmable parameters include sampling period/alarm concentration/calibration factors, data acquisition built in.
Model PDS-1 Features: readout unit or data logger. Passive sampling, allows personal monitoring, requires separate
c. ppm Enterprises
Model HAM Features: Passive sampling, active sampling attachments (optional), zero air attachment, reference scatterer attachment.
Model Personal Aerosol Monitor Features: Passive sampling, zero air attachment, reference scatterer attachment.
d. Sensidyne, Inc.
Model LD-1 Features: Active sampling, laser light source, 10- or 7-micrometer cut impactor classifier built in, analog and digital readout, one-minute or operator-selected measurement period, reference scatterer, zero air attachment.
e. A. P. Buck, Inc.
Portable Dust Monitor Features: Active sampling, laser diode light source, optional cyclone for respirable sampling, pulse height analyzer for particle sizing information, data logger built in,
filter for reference mass built in.
