JUL-AUG 2018

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46 INTECH JULY/AUGUST 2018 WWW.ISA.ORG The BTL7-T500 has a range of applications and operates safely in explosion hazardous areas of Zone 0 and Zone 1. This means, for example, it can also be used for continuous level measure- ment in refinery tanks. It has a Profibus interface for flexibility, and the position measuring system can be adapted. A single cable suffices for hook- up (bus-in-out, power). The noncontact magnetostrictive measuring system in the stainless-steel housing with IP67 protec- tion is insensitive to contamination, and also shock rated to 100 g. It with- stands vibration up to 12 g. BTL linear magnetostric tive trans ducers in the rod style, in- stalled in hydraulic cylinders, have for decades operated reliably in de- manding application areas. The magneto- strictive operating principle allows it to be installed in hermetically sealed housings; the position information is transmitted with- out contact via magnetic fields through the housing wall into the interior of the sensor. Balluff The Heartbeat Technology with Liquiline CM44 and CM44R transmitters is for use with Memosens pH and conductivity sen- sors. Heartbeat diagnostics' continuous analysis of transmitter/sensor system health during operation helps companies recognize re- lated events when they oc- cur. The diagnostics follow the NE-107-standardized, NAMUR-compliant mes- sage structure for catego- rized event severity levels with remedy instructions provided for operations or maintenance. Monitoring minimizes the probability of a sudden breakdown or failure of the measurement point and helps define when maintenance is needed. For example, de- tecting increased glass impedance in the pH sensor may indicate broken glass. In a conductivity sensor, if the coil current is out of range, there may be a short circuit or broken wire in the sensor. Heartbeat Verification permits a mea- surement point to be assessed at any time in situ, without removing the sensor or shutting down the process. This qualitative function checks the entire measurement loop, verifying sensor and transmitter per- formance. Verification results are provided via an audit safe report that the transmitter automatically generates. The report is saved in PDF format and can be preserved on an SD card for transfer to a computer. These reports can be used for regulatory, quality or safety documentation. When the Liquiline transmitter is connected to a PLC, SCADA, or dis- tributed control system via fieldbus digital communi- cations, Heartbeat Technol- ogy gives the host system a range of sensor informa- tion that can be combined with process data to identify trends. This information, along with key performance indicators, can be used for process opti- mization and predictive maintenance. The monitoring information is available over Profibus DP, EtherNet/IP, Modbus TCP, or Modbus 485 protocols. The monitoring technology is now avail- able as an option in Liquiline CM442, CM444, and CM448 transmitters and all DIN-rail mount versions. It works with Me- mosens pH and conductivity sensors and Liquistation CSF34 and CSF48 samplers. In the future, it will be available in oxygen, tur- bidity, nitrate, chlorine sensors, and Liqui- line System CA80 analyzers. Endress+Hauser Wired HART vibrating- fork level detector The Rosemount 2140 is a wired HART vibrating- fork level detector. With smart diagnostics and remote proof-testing capability, the device de- tects level while helping increase safety and effi- ciency of both plant and workers. The detector is suitable for applications with high temperatures and harsh conditions and operates with flow, bubbles, turbulence, foam, vibration, sedi- ments content, coating, liquid properties and product variations. It can be used to monitor not only liquids but also liquid-to-sand interface, which enables the buildup of sand or sludge deposits in a tank to be detected. Compatible with the HART 5 and HART 7 hosts, the detector enables operators to continuously monitor electronic and mechanical health. Frequency profiling functionality immediately detects any buildup, fork blockage, or excessive cor- rosion, indicating maintenance may be required and allowing it to be scheduled during periods of downtime. In addition, power advisory functionality monitors voltage and current drawn over the de vice's lifetime with a process alert for potential problems, such as corrosion. An optional integral LCD display shows switch output states and diagnostics, so an operator can inspect the device lo- cally. Also, selectable media density and media learn functions help configure appropriate density settings to calculate and maintain consistent switching points in fluids of unknown properties, so the device always switches. Emerson Rosemount product spotlight | Level Magnetostrictive measuring system Heartbeat Technology for transmitters

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