Whether it’s on screen, in a cabinet, on a flowchart or a wooden desktop, everyone appreciates gathering all their components and functions in front of them. Well, the same desire to organize is true for process engineers, and Emerson is enabling it by launching its Rosemount 105P standard, pre-engineered, configurable, liquid-analysis panel systems for water quality measurement. Designed to reduce project complexity, simplify, and streamline integration, these panel systems combine Rosemount transmitters, sensors, cables, flow cells and flow-control devices into a repeatable architecture that reduces onsite assembly and labor, and saves time from specification to start up.

“Up to now, users typically assembled liquid-analyzer panels on an ad hoc basis, and mounted them on a wall or pole, or secured them to a panel or board. Producing these one-off systems from loose components adds ordering steps, site work and installation variability,” says Peyton Munoz, global product manager for liquid analysis at Emerson. “Rosemount liquid, standard panels give users the flexibility to choose the measurement parameters and transmitters they need, while simplifying installation with a pre-engineered, ready-to-use panel design. The device capabilities are streamlined because they’re prearranged.”

Rosemount 105P supports a range of analytical measurements, including pH, oxidation-reduction potential (ORP), dissolved oxygen and chlorine by using amperometric sensors. The system is built onto a back-mounting panel, which also accommodates flow controllers, flow cells for up to two sensors, and cabling that links the sensors to either of Emerson’s Rosemount 1056 or 1058 dual-channel, dual-input, liquid-analysis transmitters. Rosemount 105P is also compatible with digital sensors that are more immune to electrical noise and uses Modbus protocol to connect to a liquid transmitter.

In addition, Rosemount 105P features:

• 3 to 65 psig (122 to 549 kPa abs) sample pressure
• 32 to 122 °F (0 to 50 °C) sample temperature
• 3 gal/hour (11 L/hour) minimum flow
• 80 gal/hour (303 L/hour) maximum flow, though high flows can cause the overflow tube to back up
• More than 50 μS/cm at 77 °F (25 °C) sample conductivity
• ¼-inch outer dimension (OD) process connection and tubing compression fitting, which can be removed and replaced with a barbed fitting for use with soft tubing
• ¾-inch barbed-fitting drain connection, which requires a sample to drain to open atmosphere

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“This new system is the first step in standardizing liquid-analysis panels for measuring pH and chlorine in water applications and wastewater processes,” explains Munoz. “For harsher applications, we have a roadmap in place to quickly expand their size and capabilities, add more sensors, networking, transmitters and other pre-engineered components. These systems save time and labor because they come preassembled, so users only have to establish a threaded connection to each sensor, which is much simpler and quicker than the assembly required for a custom panel.”

Beyond streamlining assembly and integration, Rosemount 105P’s standardized design also simplifies ordering and configuration tasks. Users specify online which sensors, cable types and transmitters they need, and Emerson puts together most of their devices and panels for them before they’re deployed onsite. This takes more traditional assembly tasks off the well-known critical path, eases some scheduling, and enables many owner-operators, system integrators and engineering procurement contractors (EPC) to de-stress and breathe little easier.

Once installed, Rosemount 105P’s consistent sampling environment supports measurement reliability, and reduces typical, field-built installation variability. This reduces costs by minimizing field fabrication, troubleshooting and maintenance complexity.

“Rosemount 105P comes with transmitters that are already wired, design and specification tasks that are already completed, and assembly that’s much more efficient,” adds Munoz. “Users need liquid-analysis systems that are easier to configure, order and put into service. Rosemount 105P gives them a standard option between loose components and custom- engineered panels, which helps standardize common water-quality applications, while maintaining flexibility for measurement."

Munoz adds that Emerson plans to introduce more varied industrial capabilities later this year. They include providing stainless-steel components that can handle harsher environments and fluids.

For more information, visit www.emerson.com/en/measurement-instrumentation/products/rosemount-liquid-standard-panels