SAFETY


5


“Our NPS sensors have a high level of stability require less frequent calibration which maximises their availability and minimises costs of ownership”, confi rms Nilebo. “Another advantage is that our sensors do not suffer from a problem known as ‘saturation’. This means that their responsiveness and accuracy are not adversely impacted after exposure to a high level of hydrogen.”


Able to handle the pressure


Handling hydrogen demands specifi c attention due to the danger of fi re and explosion. Hydrogen is also stored and distributed at


high pressure, meaning that a small leak can quickly escalate to a major hazard. For example, in the automotive sector hydrogen is stored on board cars at 700 bar. Although there is no confi rmed standard in this area yet, it is understood that FCEV automotive OEMs expect leak detectors to be sensitive enough to detect hydrogen at concentrations of 0.1% or less with a response time of less than one second to achieve 90% of full-scale defl ection.


In the refuelling stations for the cars, the pressure exceeds 900 bar. Testing of stationary hydrogen gas detection systems is covered by ISO26142:2010 Hydrogen detection apparatus — Stationary applications. Performance requirements are not explicitly stated, but the consensus is that a detection limit of


100ppm would be suitable at a response time of less than 30 seconds to achieve 90% of full-scale defl ection.


Nilebo summarises the situation by saying that “gas detection of hydrogen at low concentrations with a rapid responding sensor is clearly the best way to nip hydrogen leak in the bud before it gets out of control.” He adds that “our NPS technology has a faster response time than any other hydrogen sensor that we are aware of, and we believe that are in line with the rigorous expectations of the automotive sector for onboard mobile hydrogen storage and stationary hydrogen refuelling stations.”


Author Contact Details Stephen B. Harrison. sbh4 GmbH • Kranzlstraße 21, 82538 Geretsried, Germany • Tel: +49 (0)8171 24 64 954 • Email: sbh@sbh4.de • Web: www.sbh4.de


New H2 S & CO toxic gas detectors require no calibration checks for up to 24 months


Protecting workers from the potentially lethal effects of hydrogen sulphide (H2


X5000 and


General Monitors S5000 Gas Detectors. In the past, detecting H2


S) and carbon monoxide (CO) gases is now simpler and


more effective than ever with MSA Safety’s leading-edge TruCal® Technology, which is designed into its newest Ultima®


S and CO with fi xed electrochemical gas


sensors has been challenging. A gas sensor’s electrolyte or one or more of the electrodes usually limits the life of the sensor, especially in high temperature or humid environments. These conditions and issues often required frequent recalibration or clearing of blocked sensors in these rugged environments commonly found in oil/gas production and petrochemical refi ning plants.


MSA’s breakthrough TruCal technology for its XCell® H2 S and


CO sensors solves these problems with an extended calibration technology, which automatically self-checks and corrects sensor drift to extend calibration cycles up to 24 months using Adaptive Environmental Compensation (AEC) algorithms. This capability eliminates bump checks and assures the user that the sensor is


healthy, measuring accurately and capable of detecting gas continuously. The Ultima X5000 and GM S5000 Gas Detectors with TruCal Technology deliver reliable H2


S and CO protection to achieve worry-free


safety without sacrifi ce. This is accomplished by combining an internal electronic interrogation of their XCell gas sensor’s functionality (pulse check) with an acoustic system (diffusion supervision), which monitors the gas inlet path for blockages that would prevent gas from reaching the sensor.


The result is a comprehensive sensor self-check capability for the Ultima X5000 and GM S5000 Detectors that interprets the results of these two tests and confi rms the sensor is able to accurately respond to H2


S or CO or makes adjustment to the sensor sensitivity


if necessary. Furthermore, these sensors are able to identify and communicate to the user and plant control system if the sensor inlet has become obstructed, is nearing the end of its life, or is in need of calibration. TruCal’s self-check is automatically performed every 6 hours without any user intervention. TruCal eliminates the need for regularly scheduled calibrations. Sensors will perform within stated performance specifi cation for 24 months without manual calibration.


The Ultima X5000 and S5000 Gas Detectors also feature dual sensor design capability, which doubles the sensing power with half of the footprint of a single gas transmitter. Their built-in SafeSwap™ capability also enables the safe and quick replacement of XCell sensors without turning off the instrument for reduced maintenance time.


The intelligent design of the X5000 and S5000 detector’s local interface makes it simple to install, use and maintain. The detector’s display shows instrument status (power, fault or alarm), Bluetooth connection status and gas readings at a glance. A unique touch button interface provides rapid access to all settings and functions.


The X5000 and S5000 detectors offer a number of alarm signalling output choices. In addition to dual 4-20 mA current source or sink, HART, Modbus and optional Bluetooth® iOS or Android®


digital communications are available. The Bluetooth® away using the smartphone or tablet of their choice.


The X5000 and S5000 detectors address a wide range of application needs. They feature global safety approvals and are ideal for oil/ gas production including offshore platforms; fl oating production, storage and offl oading (FPSO) vessels; and marine tanker service; as well as in petrochemical refi neries, large tank storage systems and distribution facilities. In addition, they support a wide range of other heavy-duty industrial process and manufacturing plants wherever toxic or combustible gases are found.


For More Info, email: email:


For More Info, email: 54938pr@reply-direct.com interface connects with MSA’s Apple® X/S Connect App. Workers will appreciate the safety of wirelessly accessing the detectors up to 75 feet (23 meters)


Sensorix GmbH has enlarged its portfolio with electrochemical gas sensors for measuring phosphine (PH3


arsine (AsH3 (H2


Sensorix H2 ), phosgene (COC12 1% & H2 ), fl uorine (F2 ), hydrogen


), as well as tetraethyl orthosilicate (C8H20O4Si). The new products Sensorix TEOS 100, Sensorix COCl2


4%, and Sensorix AsH3 & PH3 zero H2


for industrial safety applications have class leading stability and a fast response time. All sensors are provided by Sensorix not only in standard formats - 4S, 7S, Mini, Classic, and Smart – but also in customised mechanical adaptations.


Sensorix manufacture all their sensors in standard 4S, 7S, Mini, Classic, and Smart versions as well as providing customised formats to meet their customers’ specifi c needs.


More information online: ilmt.co/PL/pVGo For More Info, email:


email: For More Info, email: email:


55735pr@reply-direct.com PEFTEC


PETROLEUM & REFINING TECHNOLOGIES


VIRTUAL EVENT


OCTOBER / NOVEMBER 24TH & 25TH 2021 NOVEMBER 1, Sensorix F2 1, ), F2


New gas sensors for AsH3, PH3


, H2 , and TEOS , COCl2 ,


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