City Technology launches hydrogen sulphide sensor with reduced cross sensitivity to methanol - the 7HH/LM
City Technology announces the launch of
a new high sensitivity hydrogen sulphide sensor, the 7HH/LM CiTiceL®,
with reduced cross sensitivity to methanol. The result of an extensive
development programme at City's dedicated research facility in Portsmouth,
England, it offers a significant performance advantage over its standard
CiTiceL® counterparts.
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This high output sensor is ideally suited to incorporation into portable and fixed safety instruments used in environments with background levels of alcohols or organic vapours. Such applications include cold environments, with temperatures as low as -40°C, where methanol is commonly used as a solvent in de-icing agents. Standard H2S sensors used in such applications, are subject to cross sensitivity to methanol and related alcohols that can give rise to costly false alarms. But this new CiTiceL®, with a modified sensing electrode formulation, has very low activity for methanol oxidation. In addition, the internal design has been modified to minimise the migration of alcohol to the reference electrode. |
Performance features
The 7HH/LM functions over a Nominal Range of 0-50ppm with a Maximum Overload
of 500ppm. It has a fast Response Time, T90 less than 30 seconds, and excellent
stability with a typical Drift of less than 2% signal loss per month. It has an
extensive Operating Temperature range from -40°C to +50°C.
The 7HH/LM comes in the standard 7 Series compact format making it an easy drop-in replacement for standard 7 Series sensors. With its proven patented design, OEMs can be confident from the outset in the sensor's robustness and high performance.
David Baines, Sales & Marketing Director, said: 'False alarms caused by background levels of alcohols will be a thing of the past for users of safety instruments containing the new 7HH/LM. The development of this new sensor illustrates City's commitment to responding to OEM's requirements, enabling them to produce application-specific instruments. Its proven design makes for easy integration and improved product performance for their customers.'
April, 2001
For further information please contact:
| John Warburton at City Technology on | + 44 23 9232 5511 | or email john.warburton@citytech.co.uk |
| Sally Davis at The PR Department on | + 44 23 9266 1600 | or email sally@theprdepartment.co.uk |