Technical Data
CompareConductivity
| Measuring Principle | Sensor ORP / Redox |
| Application | Water and wastewater including sea water, chemical industry, oil and gas, electricity and energy, hazardous areas, mining, minerals & metals |
| Installation | Retractable process assembly |
| Characteristic | Open and closed tanks, piping |
| Design | Robust and safe style Manual or pneumatic |
| Material | Seals: EPDM, FPM (Viton) or FFKM Immersion tube, process connection, service chamber: Stainless steel 1.4404 Ra < 0.76, PEEK, Alloy C22 Ra <0.76, PVDF, conductive PVDF |
| Dimension | Immersion depth: 32.2 to 188.6 mm (1.27 to 7.40 inch), depending on process adaption |
| Process temperature | -10 to 140 °C (14 to 284 °F) for all materials except PVDF and conductive PVDF -10 to 100 / 90 °C (14 to 212 / 194 °F) for PVDF and conductive PVDF materials |
| Process pressure | Stainless steel, Alloy C22, PEEK: 16 bar up to 140 °C (232 psi up to 284 °F) PVDF, conductive PVDF: Basic version: 16 bar up to 100 °C (232 psi up to 212 °F) Immersion chamber version: 4 bar to 90 °C (58 psi up to 194 °F) |
| Connection | Clamp 2", ISO2852, ASME BPE-2012, Clamp 2½", Flange DN 40, DN50, DIN65, DN80, EN1092-1, ASME B16.5, 10K50, JIS B2220, 10K80, Thread NPT 1½", Thread ISO 228 G1¼ |
Oxygen
| Measuring Principle | Amperometric oxygen measurement |
| Application | Water and wastewater including sea water, chemical industry, oil and gas, electricity and energy, hazardous areas, mining, minerals & metals |
| Installation | Retractable process assembly |
| Characteristic | Open and closed tanks, piping |
| Design | Robust and safe style Manual or pneumatic |
| Material | Seals: EPDM, FPM (Viton) or FFKM Immersion tube, process connection, service chamber: Stainless steel 1.4404 Ra < 0.76, PEEK, Alloy C22 Ra <0.76, PVDF, conductive PVDF |
| Dimension | Immersion depth: 32.2 to 188.6 mm (1.27 to 7.40 inch), depending on process adaption |
| Process temperature | -10 to 140 °C (14 to 284 °F) for all materials except PVDF and conductive PVDF -10 to 100 / 90 °C (14 to 212 / 194 °F) for PVDF and conductive PVDF materials |
| Process pressure | Stainless steel, Alloy C22, PEEK: 16 bar up to 140 °C (232 psi up to 284 °F) PVDF, conductive PVDF: Basic version: 16 bar up to 100 °C (232 psi up to 212 °F) Immersion chamber version: 4 bar to 90 °C (58 psi up to 194 °F) |
| Connection | Clamp 2", ISO2852, ASME BPE-2012, Clamp 2½", Flange DN 40, DN50, DIN65, DN80, EN1092-1, ASME B16.5, 10K50, JIS B2220, 10K80, Thread NPT 1½", Thread ISO 228 G1¼ |
pH
| Measuring Principle | Potentiometric |
| Application | Water and wastewater including sea water, chemical industry, oil and gas, electricity and energy, hazardous areas, primaries and metals |
| Installation | Retractable process assembly |
| Characteristic | Open and closed tanks, piping |
| Design | Robust and safe style Manual or pneumatic |
| Material | Seals: EPDM, FPM (Viton) or FFKM Immersion tube, process connection, service chamber: Stainless steel 1.4404 Ra < 0.76, PEEK, Alloy C22 Ra <0.76, PVDF, conductive PVDF |
| Dimension | Immersion depth: 32.2 to 188.6 mm (1.27 to 7.40 inch), depending on process adaption |
| Process temperature | -10 to 140 °C (14 to 284 °F) for all materials except PVDF and conductive PVDF -10 to 100 / 90 °C (14 to 212 / 194 °F) for PVDF and conductive PVDF materials |
| Process pressure | Stainless steel, Alloy C22, PEEK: 16 bar up to 140 °C (232 psi up to 284 °F) PVDF, conductive PVDF: Basic version: 16 bar up to 100 °C (232 psi up to 212 °F) Immersion chamber version: 4 bar to 90 °C (58 psi up to 194 °F) |
| Connection | Clamp 2", ISO2852, ASME BPE-2012, Clamp 2½", Flange DN 40, DN50, DIN65, DN80, EN1092-1, ASME B16.5, 10K50, JIS B2220, 10K80, Thread NPT 1½", Thread ISO 228 G1¼ |
The Cleanfit CPA871 ensures maximum operating safety in standard and demanding applications. Its intelligent functions prevent any medium leakage during operation, cleaning or calibration, providing optimal protection for the process and operating personnel. The retractable assembly flexibly adapts to your application conditions. With long insertion depths in viscous media, corrosive environments or hazardous areas, selecting the right material and specifications ensures your application requirements are met.
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Benefits
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Maximum operating safety: intelligent functions prevent the assembly from being moved into the process without a sensor and prevent the sensor from being removed at the measuring position.
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Suitable for demanding applications: optional immersion chamber eliminates problems caused by viscous media.
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Rugged assembly design: steel base housing ensures mechanical stability.
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Flexible adaptation to process conditions: wide range of process connections and wetted-part materials, even for corrosive media or hazardous areas.
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Application areas
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The Cleanfit CPA871 is a retractable assembly for installing pH electrodes, ORP electrodes, dissolved oxygen sensors and NIR sensors with a diameter of 12 mm and lengths of 120/225/360 mm.
Its design offers the highest safety in the following industries:
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Water and wastewater industry (including seawater applications)
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Chemical industry
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Oil and gas industry
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Power and energy industry
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Hazardous areas
Spare Parts & Accessories 7
7 spare parts · click to collapse
| Order code | Description | |
|---|---|---|
| XPC0003- | XPA871: Accessories for CPA871 bracketAccessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
| XPC0002- | Spare parts CPA871, material PP | Enquire |
| XPC0004- | XPC0004 XPA871Accessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
| XPC0005- | XPC0005 XPA871Accessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
| XPC0006- | XPC0006 XPA871Accessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
| XPC0007- | XPC0007 XPA871Accessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
| XPC0008- | XPC0008 XPA871Accessories, spare parts and maintenance kits for retractable process assembly Cleanfit CPA871 | Enquire |
Configurator / Comparison
Source: public information from the Endress+Hauser website
Manuals & Documents 4
All documents for this modelProduct Videos
Case Studies
Municipal Wastewater Treatment · brackets — Application Case
Customer Profile
The typical setting in Municipal Wastewater Treatment is the inlet, biological and outlet stages of a municipal plant. The measuring point is brackets; the focus is mounting, fixation and position adjustment for instruments.
Key Difficulties
Conditions are high solids and corrosive fractions, with large diurnal flow swings and, on top of that, effluent parameters drift and probes foul with sludge and biofilm, which a standard configuration cannot handle for long. The design therefore starts with checking structural strength by material, corrosion class and load.
Implementation
The scope ran through the system components range: supplying as a full cabinet and signal-chain configuration. Technically it hinges on checking structural strength by material, corrosion class and load, and on these requirements: stable compliance with Grade 1A discharge limits and online data reporting.
Customer Benefit
In practice this means accurate mounting positions that remove measurement bias at the source, which cut the workload on the site maintenance team.
Food & Beverage · brackets — Application Case
Project Background
The project covers dosing, pasteurising, filling and CIP stages. The work centres on brackets and the core task is mounting, fixation and position adjustment for instruments.
Operating Challenges
The medium and duty are characterised by syrups, dairy and beverages that scale easily, under strict hygienic requirements, and frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. So brackets cannot be specified generically — it calls for checking structural strength by material, corrosion class and load.
Solution
The Ainstru engineering team worked through the system components range: supplying as a full cabinet and signal-chain configuration. The configuration involves checking structural strength by material, corrosion class and load, with these requirements in view: food-safety and hygienic design per 3-A / EHEDG.
Results
Since start-up the system has run steadily; the practical result is accurate mounting positions that remove measurement bias at the source.
Chemical & Pharmaceutical · brackets — Application Case
Project Overview
The site is reactors, metering vessels and finished-product tanks. The customer wanted brackets properly configured on the existing plant, with the aim of mounting, fixation and position adjustment for instruments.
Technical Challenges
What actually causes trouble is highly corrosive media with solvents and crystallisation, partly in explosive atmospheres, and corrosion plus Ex protection shortens instrument life and makes downtime costly. All of this means the brackets configuration has to involve checking structural strength by material, corrosion class and load.
Configuration
Supply and installation were organised through the system components range: supplying as a full cabinet and signal-chain configuration. On site this meant checking structural strength by material, corrosion class and load, checked line by line against: Ex certification and GMP traceability of records.
Performance
After commissioning the outcome is accurate mounting positions that remove measurement bias at the source, and the readings are now used for process tuning.
Power & Energy · brackets — Application Case
Site Conditions
This is a Power & Energy customer whose plant is at boiler feedwater, turbine condensate and FGD/DeNOx systems. The main task was mounting, fixation and position adjustment for instruments.
The Problem
The difficulty lies in high temperature and pressure with both steam and saline water; at the same time drift under high temperature and pressure, with very costly unplanned outages. Specification therefore means checking structural strength by material, corrosion class and load.
What We Did
We took a system components range approach — supplying as a full cabinet and signal-chain configuration. Delivery was built around checking structural strength by material, corrosion class and load, with point-by-point checks on: compliance with power-industry codes and unit availability targets.
Operating Outcome
In service the system performs as intended — accurate mounting positions that remove measurement bias at the source, with routine maintenance falling noticeably.
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