1. Introdución
This manual provides comprehensive instructions for the proper use and maintenance of the WTW 202706 Heavy-Duty DO Probe Maintenance Kit. This kit is designed to ensure the optimal performance and longevity of your WTW CellOx Dissolved Oxygen (DO) probes.
The kit includes essential components for routine care, such as cleaning solution, abrasive foil, membrane heads, and electrolyte solution, all crucial for accurate and reliable dissolved oxygen measurements.
2. Contido do kit
The WTW 202706 Heavy-Duty DO Probe Maintenance Kit contains the following items:
- Cleaning solution for oxygen sensors (30 ml)
- Electrolyte solution for oxygen sensors (50 ml)
- Abrasive foil
- Three membrane heads
Figura 1: Máisview of the WTW 202706 Heavy-Duty DO Probe Maintenance Kit components. Visible are bottles of cleaning and electrolyte solutions, a protective cap, a probe component, and a yellow protective tube.
3. Configuración e preparación
Before performing maintenance, ensure you have a clean, dry workspace and any necessary personal protective equipment (PPE).
- Identify Probe Type: Confirm that your DO probe is a WTW CellOx probe, as this kit is specifically designed for these models.
- Gather Components: Lay out all components from the maintenance kit and your DO probe.
- Ler as instrucións: Familiarize yourself with the entire maintenance procedure before beginning.
4. Operating Procedures (Probe Maintenance)
Regular maintenance is crucial for accurate DO measurements. Follow these steps for proper probe care:
4.1. Limpeza da sonda
- Sonda de enxague: Gently rinse the probe with distilled water to remove any loose debris.
- Aplicar a solución de limpeza: Apply a small amount of the provided cleaning solution to a soft cloth or directly to the probe's membrane area.
- Limpar suavemente: Carefully wipe the membrane and probe body. For stubborn deposits, use the abrasive foil provided, but apply minimal pressure to avoid damaging the membrane.
- Enxágüe ben: Rinse the probe thoroughly with distilled water after cleaning to remove all traces of the cleaning solution.
4.2. Replacing the Membrane Head
The membrane head should be replaced periodically or if damaged.
- Unscrew Old Head: Carefully unscrew the old membrane head from the probe body.
- Prepare New Head: Take one of the new membrane heads from the kit.
- Fill with Electrolyte: Fill the new membrane head with the provided electrolyte solution. Ensure there are no air bubbles trapped inside. Gently tap the head to dislodge any bubbles.
- Screw On New Head: Carefully screw the new membrane head onto the probe body. Ensure it is finger-tight to prevent leaks, but do not overtighten.
4.3. Electrolyte Replacement
The electrolyte solution should be replaced when replacing the membrane head or if the probe's response becomes sluggish.
- Drain Old Electrolyte: If not replacing the membrane head, carefully drain the old electrolyte solution from the existing membrane head.
- Refill with Fresh Electrolyte: Fill the membrane head with fresh electrolyte solution from the kit, ensuring no air bubbles are present.
5. Almacenamento e manipulación
Proper storage of the kit components and the probe itself ensures their longevity and readiness for use.
- Store the kit components in a cool, dry place, away from direct sunlight and extreme temperatures.
- Keep bottles of cleaning and electrolyte solutions tightly sealed when not in use.
- Always store the DO probe with its protective cap filled with a small amount of electrolyte solution or in a suitable storage solution as recommended by WTW.
6. Solución de problemas comúns
If you encounter issues with your DO probe after maintenance, consider the following:
| Problema | Causa posible | Solución |
|---|---|---|
| Lecturas inestables | Air bubbles in membrane head, dirty membrane, depleted electrolyte. | Tap membrane head to remove bubbles, clean membrane, replace electrolyte. |
| Tempo de resposta lento | Old or contaminated electrolyte, damaged membrane. | Replace electrolyte and/or membrane head. |
| Sen lectura | Completely dry membrane, severe probe damage. | Refill with electrolyte and re-condition probe. If still no reading, probe may need replacement. |
7. Especificacións
Key specifications for the WTW 202706 Heavy-Duty DO Probe Maintenance Kit:
- Número de modelo: 202706
- Compatibilidade: Designed for WTW CellOx DO probes
- Contido do kit: Cleaning solution, abrasive foil, 3 membrane heads, electrolyte solution
- Dimensións do paquete: 8.79 x 5.49 x 2.64 polgadas
- Peso do paquete: 9.44 onzas
- Fabricante: COLE-PARMER (for distribution)
- Marca: WTW
8. Garantía e soporte
The WTW 202706 Heavy-Duty DO Probe Maintenance Kit comes with a 1 anos de garantía desde a data de compra.
For technical support, warranty claims, or further assistance, please contact your authorized WTW distributor or visit the official WTW website. Ensure you have your product model number (202706) and proof of purchase available when seeking support.
