CPS31 pH Electrode Spare Parts Overview
CPS31 pH electrodes are widely used in industrial process measurement, and the selection of their spare parts directly affects measurement accuracy and electrode lifespan. Based on the original manufacturer's spare parts list, this article systematically reviews the specifications and ordering information of key spare parts such as electrode protective caps, KCl electrolyte, and pH buffer solutions.
Correct selection of spare parts can reduce downtime and lower maintenance costs. The following content is intended for engineering technicians and procurement personnel, providing clear selection references.
Spare Parts List and Specifications
The original manufacturer's spare parts list includes multiple items. The table below summarizes the order numbers and descriptions of the main spare parts for quick reference.
| Item | 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 |
Note: Suffixes in the order numbers (such as A, C, E, etc.) represent different specifications or packaging. For details, please refer to the original manufacturer's selection manual.
Detailed Explanation of Key Spare Parts
Electrode Protective Caps (Order Number: 71538217)
Electrode protective caps are used to protect pH sensors from mechanical damage and drying during storage and transportation. Each pack contains 20 protective caps, suitable for CPSxx series electrodes.
- Material: Chemical-resistant plastic
- Applicable models: CPSxx series pH sensors
- Packaging quantity: 20 pcs/pack
KCl Electrolyte (Order Number: CPY4-)
KCl electrolyte is used for liquid-filled electrodes to maintain the stable potential of the reference electrode. Regularly replenishing the electrolyte can extend electrode lifespan and ensure measurement accuracy.
- Type: 3 mol/L KCl solution
- Applicable electrodes: Liquid-filled pH electrodes
- Packaging specifications: 1L, 2L, etc., depending on the suffix
pH Buffer Solution (Order Number: CPY20-)
pH buffer solution is used to calibrate pH electrodes, and its accuracy directly affects measurement results. This buffer solution is traceable to PTB and NIST standard reference materials and comes with a calibration certificate.
- Traceability: PTB and NIST
- Includes calibration certificate
- Available pH values: 1, 2, 9, etc. (depending on suffix)
Selection and Ordering Guide
When ordering spare parts, it is necessary to select the appropriate specifications based on the electrode model, application environment, and maintenance cycle. The following steps help you quickly complete the selection:
- Confirm the electrode model (e.g., CPS31).
- Determine the required spare part type (protective cap, electrolyte, or buffer solution).
- Select the corresponding order number and suffix according to the original manufacturer's spare parts list.
- Verify packaging quantity and inventory requirements.
- Contact the supplier to confirm delivery time and price.
Note: Different suffixes may represent different concentrations, volumes, or certifications. Be sure to verify carefully.
Maintenance Recommendations
Regularly replacing the electrolyte and calibrating the electrode are key to ensuring measurement accuracy. It is recommended to calibrate once every 1-2 weeks, and shorten or extend the cycle according to operating conditions.
Using original manufacturer spare parts can avoid compatibility issues and ensure electrode performance. Always install the protective cap during storage to prevent the electrode from drying out.
Through the review in this article, we hope to help you efficiently manage CPS31 pH electrode spare parts and improve equipment reliability.