KROHNE ALTOSONIC III EN User Manual
Page 9
Installation and operating instructions
9 ALTOSONIC
III
2.5 Pipe flanges
Refer to dimensional drawings for flange spacing and in addition allow for
thickness of gaskets. Install flowmeter in line with pipe axis. Pipe flange
faces must be parallel to each other, max.
Permissible deviation: Lmax - Lmin ≤ 0.5 mm (0.02").
2.6 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
flowmeter must be insulated from the
pipe. Note the following when installing
the flowmeter:
The pipe flanges must be connected to
each other using a copper cable (L), but
must not be connected to the flowmeter.
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. Pipe flange
3. Gasket
4. Bolt
5. Nut
6. Washer
7. Insulating sleeve
Follow grounding instructions.
Use ≥ 4 mm² (≥ AWG 11 cable).
Note: No earthing cables are supplied by KROHNE.