In many high-purity gas applications, such as the semiconductor industry, residual moisture content of gases is essential for the satisfactory operation of the process. Historically, trace moisture measurements have been problematic, requiring the use of complex water analysers or expensive analytical techniques. Michelle has now pushed into the market a simple, economical and very effective online solution with a low temperature of -120°c (-184°f) (equivalent to less than one billion). Pura adapters benefit from michel's experience and expertise in the production and calibration of anti-point sensors. A combination of industry standard materials and manufacturing processes provides the first low-cost launcher for large-scale integrated to semiconductor manufacturing plants or high-purity gas pipelines. Using a simple, stand-alone launcher module, it is designed to integrate you seamlessly into your pure gas process to provide you with the measurements you need - continuous reliability. Pura's sensor casings are built from cold-drilled stainless steel into an internal 0. 25 ra μm electro-photo-treated steel minimum water adsorption and cleaning to oxygen standards. Transmitters are fully calibrated and operational at the time of delivery. The calibrated 4-20 ma output can be connected to the michell process indicator or centralized control system. The device is designed to have a minimum internal volume. This ensures that the speed of response during debugging is as rapid as possible, as well as in the event of a wet gas incident. Sensor packagings are sealed at 10-9 ton, while the whole system will process pressure up to the vcr axis rated maximum of 240 bg (3480 psi). Customised information pura 2-wire can be used when out of the plant, calibrated at a temperature of 10 °c for the transfer of spot spacing within its measurement range can be traced back to nist and npl, which are also customized for users. The 4-20ma output allows a minimum output span of 1°c in any part of the user settings. In addition, the plant presets an alarm signal, provides an excess range, defaults on the scale and sensor failure conditions, and can be easily reset to meet your own application and system needs. All these parameters are adjusted through a simple pc-based user interface, which can be downloaded from www. Michel. Com and easily installed and operated by pura. 1⁄4 p vcr gas connection port spacing of 120 mm (4. 72 in) to fit the standard mass flow controller. The whole device is only 150 mm (5. 9 inches) height and weight less than 500 g (1. 1 pounds). Pula is a two or three-line transducer, operating flexibly and with any regulation between 12 and 28 v dc power supply (up to 25). The optional monitor is available as a wetometer if it is required to show the spot or moisture content, with an online (standard) or advanced online panel screen. Our monitor series is easily connected and is used as a power source for the pura transformer. The service exchange/re-calibration scheme, michel, provides two types of service shut-off time and traceability of equipment for clients with minimum requirements: sensor exchange - a retrofit sensor for which the customer placed an order. When this came, they replaced it with the installed sensors that returned to michel, resulting in a zero-process shutdown. Re-calibration - clients return the installed sensors to michel, where inspections, inspections and recalibration take place before they are returned. This provides continuous sensor traceability as a process。
