Vaisala MGP261, User Manual

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4. Rotate the tightening nut of the probe counter-clockwise with a wrench to release the
probe. See Inserting Probe into Process and Opening Connection Box (page 27) .
The PTFE tape seal on the probe threads will tear when you
rotate the probe open, and must be replaced when reinstalling the probe.
CAUTION!
5. Pull the probe out of the process connection and place it on the area you prepared for
handling the probe. Hold the probe from the connection box when handling it, and avoid
touching the parts that have been inserted into the process.
Use a cloth or similar to prevent dripping when pulling out the probe.
6. Ball valve installations only : remove the safety pin that locks the handle of the ball valve
in the open position and close the ball valve.
7. Clean the probe as instructed in Cleaning the Probe (page 60) and move the probe to a
clean area for further handling.
8. When reinstalling the probe, repeat the installation steps starting from Preparing Probe
for Installation (page 26) .
9.3 Cleaning the Probe
Removing the probe from the process can expose you to
biological and chemical hazards due to the nature of the biogas process
environment. Review the warnings and instructions listed in
Removing Probe
from Process (page 59) .
WARNING!
• Moist cloth for wiping the probe
• Running water
• Standard cleaning agents can be used in cleaning
1. Prepare an area for cleaning the probe.
2. To remove the probe from process, follow the instructions in Removing Probe from
Process (page 59) .
MGP261 User Guide M212273EN-A
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