Installation Page 8/51
MID_M2000_BA_02_1807
3.2.7 Plastic or lined pipelines
If non-conductive pipelines or pipelines lined with non-conductive material are used,
install an additional grounding electrode or grounding rings between the flanges.
Grounding rings are installed like gaskets between the flanges and are connected with
a grounding cable to the meter.
Caution: • When grounding rings are used, please make sure that the material is
resistant to corrosion. If aggressive fluids are measured, use grounding
electrodes.
3.2.8 Pipelines with cathodic protection
As for pipelines with cathodic protection, install meter potential-free. No electric
connection from the meter to the pipeline system may exist and power supply is to be
provided via isolating transformer.
Caution: • Use grounding electrodes (grounding rings also need to be installed
isolated from the pipeline system).
• Observe national rules in respect of a potential-free installation
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