Ion Science MiniPID - Manual (Page 6)

MINIPID 3PIN MANUAL Ion Science Ltd
Page 6 of 27
Unrivalled Detection. www.ionscience.com
Introduction
MiniPID is a miniature photoionisation sensor.
Sample gas freely diffusing through the filter
membrane is exposed to deep ultraviolet light
generated by a lamp within the sensor. The
emitted light ionises targeted gases in the
sample so they can be detected by the gas
detector and reported as a concentration (eg
ppb, ppm or mg/m
3
).
Chemicals such as volatile organic compounds
(VOCs) with an ionisation potential less than or
equal to 10.6 eV will be detected by the
MiniPID.
The MiniPID can be installed in portable and stationary gas monitors that accept either Alphasense Ltd
TM
CH-A3 or City Technology
TM
4P pellistor cells, providing complete PID capability in a package that has the
same dimensional and electrical profile as pellistors (provided 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 MiniPID sensor is offered in two models having the guaranteed range of operation below. They are
virtually insensitive to humidity changes, providing unparalleled performance in a variety of applications.
The MiniPID PPM has a dynamic range of <100 ppb to >6,000 ppm (isobutylene).
The MiniPID PPB has a linear dynamic range of 1 ppb to >50 ppm (isobutylene).
Please contact Ion Science at www.ionscience.com for a comprehensive list of response factors for various
VOCs.
The MiniPID sensor pack includes a sensor incorporating a 10.6 eV lamp, lamp driver, amplifier circuitry and
removable electrode pellet with particulate filter and pellet removal tool.
Features

Patented guard electrode for excellent
humidity immunity

Reliable lamp – illuminates at low
temperatures

Superior lamp life

User-replaceable electrode pellet keeps
your PID working, even after bad
contamination

Intrinsically safe (ATEX, IECEx, ETL, CETL)

Bulb out error detection (MiniPID PPM only)
Applications

Industrial hygiene & safety
monitoring

Soil contamination and remediation

Hazmat sites and spills

Low concentration leak detection

EPA Method 21 and emissions
monitoring

Arson investigation

Indoor air quality monitoring