Simplified liquid analysis.

Speeds water quality measurement installation with configurable, pre-engineered designs.

The Rosemount™ 105P Standard Liquid Panel Systems, configurable liquid analysis panel systems designed to reduce project complexity for water quality measurement applications. The pre-engineered panel systems combine Rosemount transmitters, sensors, cables, flow cells and flow control components into a repeatable architecture, simplifying integration and supporting a more streamlined path from specification to start-up with less on-site assembly and labour.

Liquid analysis panel projects are often handled as one-off engineered systems or assembled from loose components, creating added ordering steps, site work and installation variability. The Rosemount 105P panel systems standardise common water quality measurement needs in a configurable system that supports a range of analytical measurements, including pH, oxidation-reduction potential (ORP), dissolved oxygen and chlorine.

By combining Rosemount transmitters, sensors, cables, flow cells and flow control components into one ready-to-install system, the Rosemount 105P helps reduce the cost, time and effort required to specify, order, assemble and commission liquid analysis panels. Its configurable, pre-engineered design enables organisations to standardise deployments and replicate proven panel configurations across sites. Compared with assembling similar systems in the field, the Rosemount 105P can reduce engineering and assembly time by up to 90%, helping teams accelerate project execution while reducing complexity and installation variability.*

“Customers need liquid analysis systems that are easier to configure, order and put into service,” said Peyton Munoz, global product manager for liquid analysis at Emerson. “The Rosemount 105P panel systems give customers a standardised option between loose components and fully custom-engineered panels, helping them standardise common water quality applications while maintaining flexibility for their measurement needs.”

Factory assembly, testing and documentation help create a consistent sample environment that supports reliable measurement performance and reduces variability often associated with field-built systems. By minimising field fabrication, troubleshooting and maintenance complexity, the Rosemount 105P helps organisations significantly lower lifecycle costs while maintaining the water quality insights needed for process performance, compliance and operational efficiency.

---

* Based on Emerson internal estimates comparing engineering and assembly of repeat Rosemount 105P panel deployments with comparable field-built liquid analysis panel systems. Actual results may vary depending on application, configuration and site conditions.

 @EmersonExchange @Rosemount_News @Emerson_News @EMR_Automation  @HHC_Lewis #PAuto 

Chlor-alkali process analysis.

The OMA-300-CL2 analyser, from Applied Analytics™ [AAI], showcases a seamless dynamic range of the OMA Series from low ppm up to high % concentrations of chlorine and chlorine-based compounds.

Chlor-alkali refers to the chemicals simultaneously being produced as a result of electrolysis of a saltwater or brine solution. Typically, the chlor-alkali process produces two chemicals, chlorine and sodium hydroxide (caustic soda, NaOH). Over 95% of the world’s chlorine is produced in the chlor-alkali process.

In the chlor-alkali process, using an electrolytic cell, chlorine is gathered by running an electric current across a brine solution. The wet chlorine from the electrolytic cell is then purified further by removing moisture via a cooling tower, filtration and sulfuric acid drying towers. The gaseous chlorine is put through a liquefaction process where liquid chlorine is produced along with the byproduct tail gas/sniff gas stream, made up of the gas not liquified during liquefaction process. The tail gas/sniff gas stream is sent to a caustic scrubber for further gas processing.

The final chlorine product from the chlor-alkali process often feeds directly into EDC/VCM plants which is a precursor to PVC. Monitoring the Cl2 and NCl3 impurity throughout the chlor-alkali process is vital for safety concerns, environmental regulations, and process efficiency purposes.

 #PAuto @AAInc

Chlor-alkali Process.

Chlor-alkali refers to the chemicals simultaneously being produced as a result of electrolysis of a saltwater or brine solution. Typically, the chlor-alkali process produces two chemicals, chlorine and sodium hydroxide (caustic soda, NaOH). Over 95% of the world's chlorine is produced in the chlor-alkali process.

Monitoring the Cl2 and NCl3 impurity throughout the chlor-alkali process is vital for safety concerns, environmental regulations, and process efficiency purposes.

AAI's OMA-300-CL2 analyzer showcases a seamless dynamic range of the OMA Series from low ppm up to high % concentrations of chlorine and chlorine-based compounds. A flow diagram of the chlor-alkali process with measuring points is available upon request.

In the chlor-alkali process, using an electrolytic cell, chlorine is gathered by running an electric current across a brine solution. The 'wet' chlorine from the electrolytic cell is then purified further by removing moisture via a cooling tower, filtration and sulfuric acid drying towers. The gaseous chlorine is put through a liquefaction process where liquid chlorine is produced along with the byproduct tail gas/sniff gas stream, made up of the gas not liquified during liquefaction process. The tail gas/sniff gas stream is sent to a caustic scrubber for further gas processing. The final chlorine product from the chlor-alkali process often feeds directly into EDC/VCM plants which is a precursor to PVC.

@AAInc #PAuto

Chlorine measurement in water.

The Memosens CCS51D amperometric sensors have been launched by Endress + Hauser. This is used for measuring free chlorine measurement in process water, drinking water, water & wastewater treatment, cooling water, and all utilities and processes requiring clean, treated water.

Free chlorine is the most important disinfectant in water treatment due to its easy handling, the strong disinfecting effect and the residual effect. A precise dosing control of free chlorine can only be achieved by a fast and sensitive free chlorine measurement. Memosens CCS51D features a special membrane design providing an extremely fast response time. It helps plant operators run their disinfection processes on tight limits and save on chemicals.

The sensor's convex membrane made of dense, dirt-repellent material prevents soiling and makes it extremely resistant to biofouling. Ultrasonic welding of the membrane to the sensor cap ensures its integrity, preventing dilution of the electrolyte and thus a drift of the measuring signal. This guarantees long-term stable measurements and gives water plant managers the security that the disinfection process is running smoothly, and the required disinfection results are achieved.

The free chlorine sensor is equipped with proven Memosens technology. Memosens allows for direct commissioning of new sensors without further calibration. During on-going operation, plant operators can pre-calibrate sensors in the lab, swap them into the process with plug & play, and thus continue measuring faster. Finally, non-contact data transmission eliminates all measurement errors or even failures caused by humidity or corrosion.

The disinfection effectivity of free chlorine is strongly dependent on the pH value. To compensate for this dependency, it is important to integrate a pH measurement into all disinfection processes with free chlorine. Memosens CCS51D is connected to the Liquiline multiparameter transmitter that can serve up to eight sensors simultaneously, and the Flowfit CCA250 flow assembly offers mounting space for a simple installation of the additional pH sensor.

 @Endress_Hauser  #PAuto #Water

Free chlorine analysis.

Free Chlorine Analysis Systems, compliant to EPA Method 334.0 have been introduced by Endress+Hauser. The systems eliminate the need for costly reagents and accompanying required maintenance, making the system ideally suited for applications in drinking water, industrial water, power and other industries where water is disinfected using chlorine.

Each turnkey system is panel-mounted with an amperometric free chlorine sensor and a pH probe mounted in an integrated flow assembly, sensor cables, and an Endress+Hauser Liquiline transmitter, either the CM442 or CM444. An integral flow switch mounted in the flow assembly monitors for proper system flow, and provides an alarm at the transmitter if flow is interrupted. A lead-free regulator sets system pressure to 15 psi.

The CM442 transmitter has two sensor input channels and two 4-20mA HART outputs, while the CM444 transmitter version comes standard with two sensor input channels, and can handle up to eight sensor inputs if desired, two 4-20mA HART outputs, and additional I/O, such as digital communications. Each transmitter has a NEMA 4X (IP66) rating and all other components are waterproof, making the transmitter suitable for installation indoors, outdoors or in an enclosure.

System tubing is 3/8-inch stainless steel. All components are installed on a 20 x 20-inch stainless steel panel prepared with 3/8-inch ID mounting holes, for secure mounting to a vertical surface.

Stainless steel inlet and outlet shut off valves, with 1/2-inch female NPT fittings, allow for system isolation during routine sensor maintenance. The pH-compensated measurement ensures accurate DPD verification, and a separate 1/4-inch sample valve allows a DPD verification test for residual chlorine to be performed without interrupting system measurement. The independent DPD verification test capability also ensures compliance with EPA requirements.

A built-in needle valve in the flow assembly provides flow control between 30 and 120 L/hour, and an inductive low-flow alarm switch indicates when flow is too low for proper measurement.

Both the free chlorine and pH sensors are industry-standard Memosens digital sensors that eliminate problems associated with analog sensor technology. The systems are equipped with a Cloromax CCS142D Memosens Free Chlorine sensor in ranges of 0.01 to 5 ppm or 0.05 to 20 ppm, while the Orbisint CPS31D Memosens pH sensor measures 1-12 pH. Optional Memobase Plus hardware and software enables intelligent sensor management.

 @Endress_Hauser  #PAuto