Introduction
This guide demonstrates how to safely refill the mercury reservoir of the MME Pro electrode for use with the 757 VA Computrace. The accompanying video walks through the required equipment, proper filling procedure, and recommendations for handling and collecting any spilled mercury.
Before beginning, ensure all work is performed over the plastic collection tray and that all required accessories are available, including the electrode stand, collection tray, mercury, syringe with needle, MME key, and Mercury Catcher. Follow the video to correctly refill and secure the electrode before returning it to service.
Video
Procedure
- The following tasks must be carried out over the plastic tray!
- In addition to the MME pro, the following are required for refilling mercury: collection tray, electrode stand, mercury, syringe with needle, the MME key, and the "Mercury Catcher" for collecting any spilled mercury droplets.
- Slowly pour mercury into the electrode. It should be filled to the "max. fill" mark (max. 6 mL) at most.
- Using the key, tighten the screw cap until it stops. The opening of the mercury reservoir will then be securely closed.
- Small amounts of spilled mercury can be collected using the mercury catcher (part number 6.2406.000).
Additional Support
If you encounter any issues or need additional help, please submit a support ticket through Metrohm Technical Support.
For more detailed training on any of these topics, explore our Metrohm Custom Training options.