CPS71 pH Electrode Spare Parts Overview
CPS71 is a commonly used pH electrode in industrial processes. The correct selection of its spare parts and consumables directly affects measurement accuracy and electrode lifespan. This article compiles the spare parts order numbers, specifications, and selection codes for the CPS71 series electrodes, for reference by engineering technicians and procurement personnel.
Spare Parts Order Numbers and Specifications
The table below lists common spare parts for the CPS71 electrode, including protective caps, electrolyte, and buffer solutions. Please select the corresponding order number according to actual working conditions and electrode model.
| No. | Order Number | Specification | Description |
|---|---|---|---|
| 1 | 71538217 | CPSxx electrode protective caps | 20 pc protective caps for pH sensors |
| 2 | CPY4- | KCl electrolyte CPY4 | For liquid filled electrodes |
| 3 | CPY20- | pH buffer solution CPY20 | pH quality buffer solution, referenced to primary reference material of PTB and standard reference material of NIST. With calibration certificate buffer solution |
Electrode Protective Cap (Order Number 71538217)
Electrode protective cap is used to protect the pH sensor probe from mechanical damage and drying out during transportation and storage. Each pack contains 20 pieces, suitable for CPSxx series electrodes.
KCl Electrolyte (Order Number CPY4-)
KCl electrolyte is specially designed for liquid-filled electrodes to ensure the stability and response speed of the reference electrode. Regular replenishment of electrolyte can extend the service life of the electrode.
pH Buffer Solution (Order Number CPY20-)
pH buffer solution is traceable to PTB primary reference materials and NIST standard reference materials, and comes with a calibration certificate, suitable for high-precision calibration scenarios.
Selection Code Analysis
The complete model of the CPS71 electrode consists of multiple code segments. The following explains the meaning of each code position. When selecting, it is necessary to combine according to the measurement range, process connection, and certification requirements.
Code Position Description
- Electrode type: A, C, E, G, I, K, M, Y, etc.
- Measurement range: 01, 02, 10, 50, 75, 99, etc.
- Process connection: A, B, Y, etc.
- Certification and options: 1, 2, 9, etc.
Selection Steps
- Determine the electrode type (e.g., A for standard type, C for high-temperature resistant type, etc.).
- Select the code according to the measurement range (e.g., 01 for 0-14 pH, 02 for 0-12 pH, etc.).
- Select the process connection method (e.g., A for threaded connection, B for flange connection, etc.).
- Select the option code according to certification requirements (e.g., 1 for standard, 2 for explosion-proof, 9 for special certification).
Common Questions and Maintenance Recommendations
- Regularly check whether the protective cap is intact to avoid electrode drying out.
- Replenish KCl electrolyte every 1-2 months to ensure sufficient liquid level.
- Use fresh pH buffer solution for calibration to avoid cross-contamination.
- Keep the electrode moist during storage. It is recommended to use a protective cap and add electrolyte.
Correct selection and maintenance can significantly improve the measurement stability and service life of the CPS71 pH electrode. For more technical information, please refer to the product manual or contact the supplier.