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Gas Detection UKAS Quality Award, a UK First - for Geotech CO2 Gas Sensor Born in China For increasing the user’s safety,
Hanwei develops CO2 gas sensor and CO2 gas detector by means of a selective infrared sensor (NDIR).
This sensor / detector can provide long-term stable detection values.
At present, Hanwei can supply CO2 gas sensor, sensor module and gas detector to meet different demand of the clients.
These products can be widely used in the green house, agriculture, and industrial workingplaces etc.
Geotech (UK) has achieved UKAS accreditation for its calibration lab for its full range of landfill, biogas and waste to energy gas analysers. According to its UKAS assessor, “Geotech is the first manufacturer of portable gas analysers to obtain UKAS accreditation.” For Geotech gas analysers, already with MCERTS certification for the instrument, this important UKAS accreditation gives Geotech analyser users the most comprehensive externally audited and verified performance endorsement available for a manufacturer of portable gas analyser calibration.
The UKAS accreditation is to ISO17025 and involved a rigorous examination of the Geotech calibration system and procedures by the United Kingdom Accreditation Service. Regular independent audits by UKAS will confirm that standards are maintained. This accreditation further ensures that analysers will be accurately calibrated every time that they are returned to Geotech and gives users the assurance that they are obtaining accurate readings.
Speaking from Geotech’s Leamington Spa-based UK HQ, managing director, Steve Billingham said, “This highest of quality standards confirms Geotech at the forefront in offering our customers the top quality equipment, service and calibration compliant with the most recent and most demanding standards. It reaffirms our unique position as the high-quality supplier in this market with UKAS and MCERTS.”
Hanwei No.169 xuesong road, National Hi&Tech Zone, 450001 Zhengzhou, ChinaTel: 86-371-67169080 Fax: 86-371-67169090 Email:
sales@hwsensor.com or
hwsensor@gmail.com Web:
www.hwsensor.com
Complimenting Geotech on its achievement, Mike Brennan, Environmental Risk Manager, at SITA (
www.sita.co.uk), said, “We congratulate Geotech on reaching this very high and demanding standard of quality. We have been discussing our need for it for some months and Geotech has responded excellently to our requirements. We need to show our achievement of these demanding levels of professionalism, quality and compliance and it is essential to have a manufacturer and supplier to assist in that.” He added, “This fits very well with our own accreditation which enables us to continue to demonstrate our data is continually reliable and of the highest quality.”
As part of the UKAS accreditation Geotech has upgraded its calibration gases to the most accurate available, which will give an improved calibration for all customers. Geotech UK personnel also assisted their parent company, Landtec in the US to achieve the same ISO17025 accreditation. Geotech and Landtec can now offer ISO17025 accredited calibration certification globally.
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New Version of IR Gas Sensors in Aluminum Cuvette with Improved Performance
In many applications in process- and analysis engineering, the exact detection of gas concentrations is indispensable. Contrary to other measurement processes, the sensors that are based on the infrared absorption offer important advantages. These sensors deploy the character of the gases, to absorb the infrared radiation at a specific wavelength. Since this is characteristic for the respective kind of gas, the sensor works very selectively and barely shows interference opposite to other gases. In compassion to electrochemical and catalytic sensors, these sensors do not show any seasoning effects.
With the new version of the smartMODULFLOW, the smartGAS (Germany) now offers an OEM-sensor that is based on the IR absorption and that can be integrated in a process easily. The sensor element that consists of a powerful IR radiant source, an interference filter for the wavelength selection and an IR dual detector is housed in an aluminum cuvette for this reason. This cuvette can be integrated into the process and can be flowed through with the respective gas. This buildup provides important advantages, especially in procedural applications. The aluminum cuvette for example can be held at a constant temperature to exclude temperature dependent effects. As a result from this, a higher measurement accuracy can be achieved. By an additive isolation of the optical components of the gas flow, diverse flow effects can be minimised. Furthermore, the modular and easy to install construction allows a higher flexibility, because the measurement setup of smartGAS is easy to adjust to the customer specific measurement problem, for example by the adaptation of the light path.
The evaluation electronics with the interfaces of the sensor module resides on the
board beyond the cuvette. Beneath the standard interfaces (4…20 mA, 0…2,5 V) there also is a serial RS485 interface available. The also integrated Watchdog, that observes the function of the sensors technology, is of high importance, especially at security relevant applications. The new aluminum version of the smartMODULFLOW is available for the following gases: Acetylene, Butane, Ethane, Ethylene, Carbon dioxide, Carbon monoxide, Propane, Methane, R134a and sulfur hexafluoride.
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May/June 2010
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