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With a PID, the sample gas is exposed to deep
ultraviolet light from a lamp. The emitted light ionises targeted
gases in the sample so they can be detected by the gas detector
and reported as a concentration (ppb or ppm).
The Alphasense PID can be installed in portable
and stationary gas monitors that accept either Alphasense Ltd CH-A3
or other manufacturer's compatible pellistor cells. Thus providing
complete PID capability in a package that has the same dimensional
and electrical profile as pellistors (providing the electronics
input circuit is designed to take the sensor’s output range).
This opens up an incredible variety of environmental and safety
applications in industrial, commercial and residential markets.
The Alphasense PID sensor is offered in two models,
A1 and AH. They are virtually insensitive to humidity changes, providing
unparalleled performance in a variety of applications.
PID-A1 has a linear dynamic range of 100-ppb
to 6,000-ppm (Isobutylene).
PID-AH has a linear dynamic range of 5-ppb to
50-ppm (Isobutylene).
The sensors include a detector with 10.6eV lamp,
lamp driver, amplifier circuitry, removable electrode stack &
particulate filter.
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Application
Notes
