1. Introdução
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. Conteúdo 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: Overview 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. Configuração e preparação
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.
- Reunir componentes: Lay out all components from the maintenance kit and your DO probe.
- Leia as instruções: 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. Cleaning the Probe
- Sonda de enxágue: Gently rinse the probe with distilled water to remove any loose debris.
- Aplicar solução de limpeza: Apply a small amount of the provided cleaning solution to a soft cloth or directly to the probe's membrane area.
- Limpe 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.
- Enxágue bem: 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.
- Complete com eletrólitos: 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. Armazenamento e Manuseio
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. Solução de problemas comuns
If you encounter issues with your DO probe after maintenance, consider the following:
| Problema | Possível causa | Solução |
|---|---|---|
| Leituras instáveis | 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. |
| Sem leitura | Completely dry membrane, severe probe damage. | Refill with electrolyte and re-condition probe. If still no reading, probe may need replacement. |
7. Especificações
Key specifications for the WTW 202706 Heavy-Duty DO Probe Maintenance Kit:
- Número do modelo: 202706
- Compatibilidade: Designed for WTW CellOx DO probes
- Conteúdo do kit: Cleaning solution, abrasive foil, 3 membrane heads, electrolyte solution
- Dimensões da embalagem: 8.79 x 5.49 x 2.64 polegadas
- Peso da embalagem: 9.44 onças
- Fabricante: COLE-PARMER (for distribution)
- Marca: O que é isso?
8. Garantia e Suporte
The WTW 202706 Heavy-Duty DO Probe Maintenance Kit comes with a Garantia de 1 anos a partir da data da 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.