Product Information
Category: Water Quality Monitoring SystemsKey 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
Related Products
pH3000 Research-Grade Plastic pH Sensor (Refillable)
Product Description
When accuracy and repeatability are critical, such as in pharmaceutical or drinking water applications, the ideal pH electrode will quickly deliver stable measurements. The pH3000 is a research grade pH meter replacement probe specially designed to respond quickly and accurately to rapid temperature changes. The high sensitivity internals also make these electrodes the best choice for low ionic samples. The double junction reference design prevents contamination, allowing pH testing in samples containing heavy metals, proteins and enzymes, or TRIS buffer.- Our most sensitive laboratory electrode: accurate to 0.04 pH in tests across full recommended temperature range
- Easily maximize measurement repeatability: Rapid renew reference system for quick refilling
- Extensive chemical compatibility: Constructed with durable Ultem®, proven in a range of chemical conditions
- Ideal for difficult sample types: Double junction reference protection for testing samples containing heavy metals, TRIS buffer, and other contaminants
- Virtually unbreakable: removable bulb guard protects pH glass and strain relief prevents damage to cable connection
- Ready for wet or corrosive environments: BNC boot protects meter connection
- Compatible with various meters: Versatile replacement probe works with any meter accepting a BNC pH probe
SoliSense®
Key Benefits
- From 2 NTU to 8% Solids
- Displays in NTU, mg/l, g/l or % solids – flexible
- Auto-clean optical sensor – months without maintenance
- Stable and reliable – excellent process control
- Suitable for all potable, waste and process waters
- Up to 12 months between maintenance
- Up to 12 months between calibration
- Less spares – more commonality across a single or multiple sites
- No requirement to know the range prior to specifying – easier purchasing
- One online suspended solids analyzer can be:
- Online mlss meter
- Online tss meter
- Online total suspended solids meter
- Online effluent monitor
- Online inlet monitor
- Online ‘in process’ suspended solids analyzer
pHSense
Key Benefits
Stable and reliable online pH meter On board diagnostics Auto calibrant recognition Low purchase cost Long life pH sensors Remote access and SMS text alarmsFluoriSense
Key Benefits
Pi’s FluoriSense range of fluoride monitors and fluoride analyzers utilize the very latest and best fluoride sensors available in the world today for measuring the online fluoride content of any potable water. They are ion selective electrodes (ISEs) with integral reference, automatic temperature compensation and solid polymeric junction. which use no reagents, are extremely stable, and have reduced maintenance and reduced whole life costs.- Measuring method: ISE (Ion Specific Electrode)
- Measure range: 0.02 ppm saturation
- Sample pH range: 5 to 7 pH at 1 x 10⁻⁶ M / 5 to 11 pH at saturation
- Temperature range: 0 to 80°C continuous / 80 to 100°C intermittent
- Electrode resistance: less than 50 MΩ
- Reproducibility: ±2%
- Cable length: 100cm
- Calibration: Manual using test kit
- No reagent required
ConductiSense
Key Benefits
- Resists coating, corrosion and fouling
- Durable Noryl (plastic) construction
- Easy installation
- Low purchase cost
- Custom tee for in-line mounting
PC-3100 Series Microprocessor pH/ORP Transmitter
Robust protection and precise integration
The PC-3100 series pH/ORP transmitter has rugged IP 65 enclosure and can be wall, panel, pipe mounted for installation in almost any industrial application. The PC-3100RS offers RS-485 interface to support digital communication to your PLC. The transmitters inherit our reliable technology which features in accurate, robust, and easy to use functions.
Applications
Water treatment Chemical process Biochemical process Wastewater treatment Electrical process Food and beverage processFeatures
- pH, ORP, Temperature measurement
- IP 65 waterproof and dustproof design
- Back-lit LCD with ON/OFF/Auto programmable illumination
- Two sets of isolated current output DC 0/4~20mA corresponding to measurement and temperature
- Two Hi/Lo Limited contact outputs; Set points with programmable hysteresis function
- Automatic temperature compensation
- Gradually continuous sample measurements average function to enhance stability
- Wash function with programmable time-interval control
- LED indication alarm or wash status signal
- Password protection
- PC-3100RS with one analog output and one RS-485 interface
BioSense
Key Benefits
The BioSense range of qualitative biofouling monitors provide a relative measure of "activity" of biofilm being present in your process, allowing you to dose your biocide accordingly or take other appropriate remidial action.- Legionella control
- Automatic Biocide control
- Can be combined with other sensors
- No maintenance
- Cooling towers and any water circuit
- Seawater option Reduced chemical costs Up to 10 Bar
OzoSense
Key Benefits
- Stable and reliable – excellent ozone process control – ozone controllers
- Suitable for all potable, process and salt waters – ozone monitor – ozone analyzer
- Up to 6 months between maintenance
- Up to 3 months between calibration
- Does not respond to residual chlorine (OzoSense M)
- Resistant to detergents in the water
- Up to 70°C (OzoSense NM)
- Onboard PID controls – dissolved ozone Controller
- Onboard data logging and graphing capability
- Onboard comms such as TCP/IP, Modbus, Profibus and more.
ORP1000 Polycarbonate Laboratory ORP Sensor
Product Description
The ORP1000 is a durable and easy to use ORP sensor. Great for outdoor applications, such as monitoring swimming pool chlorine, this probe has built in protection for the ORP sensor surface. Use the ORP1000 with any ORP meter accepting a BNC connector.- Very fast response time: Platinum measurement surface for fast response time and stable readings
- No maintenance required: Sealed reference design requires no refilling
- Durable construction: Polycarbonate body is built for frequent lab or field use
- 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
StreamerSense
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