KROHNE UFM 3030 Service EN - Manual (Page 11)

UFM 3030 11
2.5 Pipes with cathodic protection
Pipes with electric corrosion protection are generally insulated inside and outside so that the fluid
has no conductive connection to ground. The flow meter must be insulated from the pipe. Note
the following when installing the flow meter:
The pipe flanges must be connected to each other using a copper cable (L), but must not be
connected to the flow meter.
The bolts for the flange connections and the gaskets must be insulated. Use sleeves and washers
that are made of insulating material (these must be provided by customer).
1. Flange of flow sensor
2. Gasket
3. Pipe flange
4. Bolt
5. Nut
6. Washer
7. Insulating sleeve
Follow grounding instructions.
Use
≥
4 mm2 (
≥
AWG 10 cable).
Note: No earthing cables are supplied by
KROHNE.