EX90 Series

Product Description

Environmental, wastewater, and other sampling applications may expose electrodes to unknown contaminants. Over time, exposure to contaminants such as heavy metals and reactive chemicals, will take a toll on a sensor’s functional components. The best sensors for these types of applications are built to safely handle contaminants to maximize working lifetime. Our pH2400 is a glass electrode with double junction reference design to prevent fouling by sample contaminants that interact with Silver (Ag). The refillable reference junction allows users to replace the liquid fill solution as it becomes depleted or contaminated, instead of replacing the whole sensor.

• Accurate measurements across full pH scale (0-14)
• Maximum chemical compatibility: glass electrode bodies are inert to most reactions
• Extended lifetime: Refillable reference junction allows sensor maintenance, saving replacement costs
• Great for wet or corrosive environments: BNC boot protects meter connection
• Compatible with any meter accepting BNC
• Instantly ready for use: Shipped in storage bottle for long shelf life – guaranteed for one year
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

Product Description

The S272CD online process pH sensor delivers reliable online monitoring for in-line or submersion installation configuration. This sensor is designed to extend sensor lifetime with double-junction technology. Minimal maintenance required due to flat glass measurement surface. A versatile sensor for moderate and multi-purpose applications.

• Reliable performance in demanding applications: Liquid flow naturally cleans the flat pH measurement surface
• Extended sensor lifetime: Double junction technology extends sensor lifetime by preventing reference contamination
• Versatile design for many applications: 3/4″ NPT threads on both ends for submersion or in-line mounting
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

Key Benefits

Many water companies want to measure free chlorine residuals without the need for chemical buffers traditionally associated with such measurements. Acetate and phosphate buffers are expensive and environmentally unfriendly. Buffer delivery systems are maintenance intensive and have fairly costly consumables and there are health and safety considerations in the handling of the acids and high disposal costs if the acid treated water is unable to be fed back into the water supply. Amperometric cells and most polarographic probes only respond to hypochlorous acid, (HOCl). HOCl dissociates into hypochlorite (OCl–) in a pH dependent manner. This is why most chlorine monitors need acid buffers in most applications. The typical pH of water measured on a water treatment works may range from 7 to 9.2. Chemical buffering reduces the pH to between 5 and 6 and ensures that the majority of the residual chlorine is present as HOCl (see graph below).

• Low purchase cost
• Low cost of ownership
• Reduced pH dependency (largely pH independent)
• Stable and reliable
• Bufferless
• Reagentless

Product Description

Surfaces like paper, leather, electrophoresis gels and agar plates may be difficult to measure with traditional pH glass bulbs due to concerns about breakage. A flat electrode like our pH2500, is ideally suited for these types of pH measurements as well as measurements of suspended sludges and slurries. In addition to its specially designed measurement surface, the pH2500 features double junction construction, which prevents contamination and allows testing of samples containing heavy metals or proteins.

• Perfect for gels and slurries: Flat electrode measurement surface designed for testing special sample types
• Accurate measurements across full pH scale (0-14)
• Highly adaptable: Compatible with any pH meter accepting BNC
• Low maintenance: Gel-filled electrode reference design with double junction to prevent contamination
• Instantly ready for use: Shipped in storage bottle for long shelf life – guaranteed for one year
• One year limited warranty: We stand behind all our products with the Sensorex Guarantee

Key Benefits

• Immediate response to process changes in coagulation treatment – coagulation monitor
• Maintain high quality finished water through improved coagulation control –coagulation controller
• Reduce coagulant/polymer costs – coagulant analyzer
• Automate dosing coagulant/polymer dosing using the streaming current monitor –coagulant control
• Ensure coagulation reliability – coagulant analyzer
• Improve operator efficiency – coagulant analyzer
• Improve filter performance and coagulation treatment – coagulation controller
• Monitor your coagulation control process – coagulation monitor

Streaming Current Monitors Standard Features

• Patented sensor design
• Quick replacement probe and piston
• Self-diagnostic sensor
• High-volume flow minimizes sensor fouling
• Removes electronics from harsh environments
• Corrosion-free Nema 4x enclosure (IP65)
• Optional computer interface
• Spare probe cartridge and piston included
• Auxiliary input signals