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6
Secure the device with retaining bolts for the installation.
Chapter 6.2, "Ensure for a safe position of the device" on page 73
7
Check the device for any signs of damage.
Chapter 6.3.2, "Checking the device after storage" on page 80
8
Clean the sealing surface of the flange from contamination with a gentle
cleaning agent.
8.2 Installation of the device
8.2.1
Mounting the inlet and outlet piping
Danger
Escaping gas from incorrect seals
If flange seals are used for ultrasonic gas meters that protrude into the pipeline,
potentially explosive gas mixtures may escape due to leaks. Risk of intoxication
and explosion!
•
Make sure that the flat seal does not protrude over the sealing surface into
the pipeline.
Observe the instructions for the dimensions!
Chapter 13.5, "Weights and dimensions" on page 184
8 Installation
Manual USM GT400 · EN10 · May 2021
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