Orbipac CPF81 Analog pH Sensor

1.General Description:

People also call the Endress+Hauser Analog pH Sensor Orbipac CPF81 CPF81-LH21A2 E+H Orbipac pH Probe. People know it as the ENDRESS+HAUSER CPF81-NN11C3 Analog pH Sensor. This sensor is a simple solution for measuring pH in tough environments.

This Analog pH Sensor is part of the CPF Orbit family. It provides strong reliability for monitoring processes in mining, industrial water, and wastewater treatment.

The Orbipac CPF81 is a small pH electrode. The material consists of PPS (Polyphenylsulfide) and features a 3/4" NPT connection. This design allows for easy installation in pipes, tanks, and vessels.

It has a special KNO₃ electrolyte bridge. This bridge helps protect against contamination and harmful ions like S²⁻ and CN⁻. This design ensures stable and accurate measurements over time, even in tough conditions.

The Endress+Hauser Orbipac CPF81 provides exceptional performance in continuous pH monitoring and serves as a reliable pH probe solution across multiple industries.

2.Technical Specifications:

l Measuring Range: pH 0 to 14

l Process Temperature: 0 to 80°C (32 to 170°F)

l Process Pressure: Maximum 10 bar (145 psi)

l Minimum Conductivity: 50 μS/cm

l Glass Impedance: 150 MΩ at 25°C (77°F)

l Material: PPS / glass / PTFE

l Dimensions: Length 120 mm (4.68 inch)

l Ingress Protection: IP68

3.Orbipac CPF81 Features:

l Analog pH Sensor ideal for continuous operation in harsh environments.

l With patented KNO₃ electrolyte bridge for better protection and longer sensor life.

l Robust polymer housing prevents mechanical damage and resists aggressive media.

l Optional integrated Pt100 temperature sensor for temperature compensation.

l Suitable for flow and immersion installation configurations.

l High chemical and thermal resistance, enabling stable and accurate performance.

l Compatible with Endress+Hauser CPF81D Memosens Digital pH Sensor for easy system upgrades.

l Available versions include CPF81-LH32D8 E+H Orbipac Analogue pH Sensor and CPF81-LH21A2 variants for specific industrial needs.

4.Orbipac CPF81 Applications:

l Flotation and leaching in the mining industry.

l Neutralization processes in chemical treatment.

l Inlet and outlet water monitoring in wastewater plants.

l Industrial water treatment systems for pH control.

l Mining operations requiring durable, contamination-resistant sensors.

5.Installation Procedure:

l Ensure the assembly thread, O-rings, and sealing surfaces are clean and undamaged.

l Verify the thread runs smoothly.

l Refer to the operating instructions for the assembly used.

l Screw in the sensor by hand and tighten with a torque of 3 Nm (2.21 lb·ft) — valid when installing in Endress+Hauser assemblies.

6.Similar and Related Part Numbers:

l CPF81D16 / Orbipac CPF81D – Digital pH Sensor Orbipac CPF81D Memosens

l CPF81D 7LH11 – Endress+Hauser Orbipac CPF81D Digital version

l CPF82D16 – Analog ORP electrode Orbipac CPF82

l CPF81E / CPF82E – Digital pH and ORP electrodes (Memosens)

l CYA112 – Immersion assembly

l CYK10 – Memosens data cable

l CPK9 – Measuring cable

l Orbitec CPS92D – High-precision pH/ORP sensor

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7.Understanding CPF and Its Broader Use:

In Endress+Hauser instrumentation, CPF stands for the Orbipac Compact pH Family. In other scientific areas, CPF means Consolidated Prediction Format. Researchers use this format for orbit prediction and satellite laser ranging (SLR). It helps predict satellite paths for SLR stations accurately.

This shared acronym shows the precise nature of Endress+Hauser CPF Orbit technologies. They provide accurate predictions and measurements in their fields.

8.Summary of Benefits:

l Reliable Analog pH measurement under harsh industrial conditions.

l Long-term stability with patented KNO₃ electrolyte protection.

l Durable construction for mechanical and chemical resilience.

l Interchangeable analog/digital design for easy modernization.

l Endress+Hauser engineering excellence ensures dependable pH measurement and minimal downtime.