Released on: May 9, 2008, 6:08 am

Press Release Author: The Scott Partnership

Industry:

Press Release Summary: (9 May 2008) Analytical Technology Inc. has introduced its
innovative Q45S H2S Gas Monitor, a continuous and reliable approach to on-line
hydrogen sulphide (H2S) monitoring in wet conditions. The Q45S marks the first gas
monitor introduced to the UK market from Analytical Technology, who have
successfully become the defacto supplier of water monitors to the UK and Europe,
backed by exemplary customer support. Continuous monitoring of hydrogen sulphide in
both inlet and discharge air has presented problems for standard sulphide gas
sensors. Analytical Technology has developed this ground-breaking sensor technology
that now allows continuous monitoring in this type of application, where condensing
humidity conditions are normal. The Q45S system utilises a sensor designed to
operate in condensing gas streams without the water vapour blinding, which can be
typical of standard sulphide sensors.

Press Release Body: Analytical Technology Improves Hydrogen Sulphide Monitoring in
Wet Conditions with Q45S Gas Detector

(9 May 2008) Analytical Technology Inc. has introduced its innovative Q45S H2S Gas
Monitor, a continuous and reliable approach to on-line hydrogen sulphide (H2S)
monitoring in wet conditions. The Q45S marks the first gas monitor introduced to the
UK market from Analytical Technology, who have successfully become the defacto
supplier of water monitors to the UK and Europe, backed by exemplary customer
support. Continuous monitoring of hydrogen sulphide in both inlet and discharge air
has presented problems for standard sulphide gas sensors. Analytical Technology has
developed this ground-breaking sensor technology that now allows continuous
monitoring in this type of application, where condensing humidity conditions are
normal. The Q45S system utilises a sensor designed to operate in condensing gas
streams without the water vapour blinding, which can be typical of standard sulphide
sensors.

The use of scrubber systems is often required for odour control in wastewater
treatment plants and sewage collection systems. A wet process using hypochlorite
solution to remove H2S from air streams prior to discharge is often employed.
Analytical Technology's Q45S odour monitoring system employs a wet H2S sensor and
measurements can be made either at the inlet to scrubber systems or at the outlet.
For duct insertion and flowcell use, special sensor configurations are available.

The Q45S system from Analytical Technology is capable of monitoring H2S in gas
streams with condensing levels of water vapour, as water droplets that could present
a barrier to the diffusion of H2S are eliminated from the sensor. An automatic
system for purging accumulated droplet water from the face of the sensor ensures
long-term operation without loss of sulphides in condensed water. Additionally, an
optional air-purge system controlled by the transmitter periodically delivers a
blast of air across critical sensor surfaces to remove water droplets. The Q45S
system ensures a clear gas diffusion path to the sensor and reliable measurements on
a continuous basis.

A special battery-powered version of the Q45S is available for use in temporary
installations and data is easily downloaded to a standard PC using software supplied
with the unit. This system runs on an internal nine volt battery which will operate
the unit for four days, while a nine volt lithium battery will provide about 10 days
of operation.

The Q45S monitor from Analytical Technology operates within a weather-proof Nema 4X
enclosure, designed for operation in typical wastewater treatment plant
environments. In addition, the gas monitor electronic assembly is CSA/UL certified
and has been checked against the strict European standard EC guideline ATEX
Directive 94/9/EC for hazardous areas.

For more information about the benefits offered by Analytical Technology's complete
range of analytical instruments, please call +44 1457 832800, e-mail
info@analyticaltechnology.com or visit www.analyticaltechnology.com
-ENDS-

For further press information please contact: Eleanor CallanMonk, The Scott
Partnership, 1 Whiteside, Station Road, Holmes Chapel, Cheshire CW4 8AA Tel: +44
1477 539539 Fax: +44 1477 539540 e-mail: ati@scottpr.com



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Contact Details: For further press information please contact: Eleanor CallanMonk,
The Scott Partnership, 1 Whiteside, Station Road, Holmes Chapel, Cheshire CW4 8AA
Tel: +44 1477 539539 Fax: +44 1477 539540 e-mail: ati@scottpr.com