Technical Data
ComparepH
| Measuring Principle | |
| Application | High accuracy, clogging media, high concentration of organic solvents, low conductivities |
| Characteristic | Sterilizable and autoclavable ISFET sensor for pH measurement Digital with Memosens technology |
| Reference | Liquid KCl |
| Measuring range | pH 0 to 14 |
| Material | Sensor shaft: PEEK Seals: FFKM Junction: ceramic |
| Dimension | Diameter: 12 mm (0.47 inch) Shaft lengths: 120, 225 and 360 mm (4.72, 8.86 and 14.17 inch) |
| Process temperature | -15 to 135 °C (5 to 275 °F) |
| Process pressure | Max. 11 bar abs at 100 °C (max. 160 psi at 212 °F) |
| Temperature sensor | Pt1000 |
| Connection | Inductive, digital connection head with Memosens technology |
| Ingress protection | IP 68 (10 m (33 ft) water column, 25 °C (77 °F), 45 days) |
| Certificates, declarations and approvals | 3-A, FDA compatible EHEDG Typ EL Class I aseptic ASME BPE-2018 Regulation (EC) No. 1935/2004 USP , USP Class VI, 121 °C (250 °F) |
The Memosens CPS47D digital ISFET electrode offers superior performance for measuring low conductivity or high concentrations of organic solvents in process applications where glass breakage is prohibited. The short response time of the electrode enables highly accurate measurement even in applications with rapidly changing media. The sensor shaft cannot break, ensuring maximum product safety. In addition, Memosens digital technology offers maximum process and data integrity with simple operation. The electrode is moisture- and corrosion-resistant and can be calibrated in the laboratory for predictive maintenance.
Benefits
The sensor cannot break, ensuring maximum product safety
Stable KCl salt bridge electrolyte filling and independent reference lead for high resistance to poisoning
Suitable for steam sterilization
Long calibration intervals, low maintenance
Non-contact inductive signal transmission for maximum process safety
Storage of sensor and process parameters enables predictive maintenance
Minimal downtime reduces operating costs and extends sensor service life
Applications
Media with high concentrations of organic solvents or extremely low conductivity:
• Chemical industry, measurement of media prone to clogging
• Power plants, e.g. boiler feed water
• Life sciences, e.g. water for injection
Certified for all relevant hygienic applications, e.g. EHEDG, 3A, EU1935/2004, USP 87/88.
Spare Parts & Accessories 4
4 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| 71038228 | *** sensorfor assignment of sensors to measuring loop. 100 sensor clips with printable labels | Details |
| CPY4- | KCl electrolyte CPY4For liquid filled electrodes | Enquire |
| CPY20- | pH buffer solution CPY20pH quality buffer solution, referenced to primary reference material of PTB and standard reference material of NIST. With calibration certificate buffer solution | Enquire |
| CPY7B- | Electrolyte Cell CPY7BKCl Electrolyte reservoir CPY7B Storage for liquid KCl Liquid KCl filled pH- and ORP electrodes: CPS41(E), CPS42(E), CPS47E ::Pressureless and pressurized ::Safe and reliable pH measurements | Enquire |
Configurator / Comparison
Source: Endress+Hauserpublic information from the website
Measuring principle video
Click to playManuals & Documents 4
All documents for this modelCase Studies
Municipal Wastewater Treatment · PH — Application Case
Application Context
the inlet, biological and outlet stages of a municipal plant is a typical Municipal Wastewater Treatment duty. The project started from PH, focusing on continuous pH monitoring for neutralisation and compliance control.
Process Constraints
effluent parameters drift and probes foul with sludge and biofilm, and high solids and corrosive fractions, with large diurnal flow swings only amplify it. The PH specification must therefore cover choosing glass or ISFET sensors by temperature, fluoride content and pressure.
Delivery Approach
Delivery was handled as the analyser range — selecting as part of a complete water-analysis system. Execution centred on choosing glass or ISFET sensors by temperature, fluoride content and pressure, together with stable compliance with Grade 1A discharge limits and online data reporting.
Field Results
Operation shows the benefit clearly — tighter dosing control and lower reagent consumption, with confidence in this measuring point improving markedly.
Food & Beverage · PH — Application Case
Customer Profile
The typical setting in Food & Beverage is dosing, pasteurising, filling and CIP stages. The measuring point is PH; the focus is continuous pH monitoring for neutralisation and compliance control.
Key Difficulties
Conditions are syrups, dairy and beverages that scale easily, under strict hygienic requirements and, on top of that, frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles, which a standard configuration cannot handle for long. The design therefore starts with choosing glass or ISFET sensors by temperature, fluoride content and pressure.
Implementation
The scope ran through the analyser range: selecting as part of a complete water-analysis system. Technically it hinges on choosing glass or ISFET sensors by temperature, fluoride content and pressure, and on these requirements: food-safety and hygienic design per 3-A / EHEDG.
Customer Benefit
In practice this means tighter dosing control and lower reagent consumption, which cut the workload on the site maintenance team.
Chemical & Pharmaceutical · PH — Application Case
Project Background
The project covers reactors, metering vessels and finished-product tanks. The work centres on PH and the core task is continuous pH monitoring for neutralisation and compliance control.
Operating Challenges
The medium and duty are characterised by highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. So PH cannot be specified generically — it calls for choosing glass or ISFET sensors by temperature, fluoride content and pressure.
Solution
The Ainstru engineering team worked through the analyser range: selecting as part of a complete water-analysis system. The configuration involves choosing glass or ISFET sensors by temperature, fluoride content and pressure, with these requirements in view: Ex certification and GMP traceability of records.
Results
Since start-up the system has run steadily; the practical result is tighter dosing control and lower reagent consumption.
Power & Energy · PH — Application Case
Project Overview
The site is boiler feedwater, turbine condensate and FGD/DeNOx systems. The customer wanted PH properly configured on the existing plant, with the aim of continuous pH monitoring for neutralisation and compliance control.
Technical Challenges
What actually causes trouble is high temperature and pressure with both steam and saline water, and drift under high temperature and pressure, with very costly unplanned outages. All of this means the PH configuration has to involve choosing glass or ISFET sensors by temperature, fluoride content and pressure.
Configuration
Supply and installation were organised through the analyser range: selecting as part of a complete water-analysis system. On site this meant choosing glass or ISFET sensors by temperature, fluoride content and pressure, checked line by line against: compliance with power-industry codes and unit availability targets.
Performance
After commissioning the outcome is tighter dosing control and lower reagent consumption, and the readings are now used for process tuning.
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