KROHNE BATCHCONTROL 5014 C - Manual (Page 9)

Installation and operating instructions 9 BATCHCONTROL
1.3.1 Position of flanges
Install flowmeter in line with the pipe axis. Pipe
flange faces must be parallel to each other,
max. allowable deviation:
L
max
– L
min
≤ 0.5 mm ≤ 0.02"
1.3.2 Example: centering and sealing
the primary head
The primary head is centered between the pipe
flanges with the aid of the precise geometric
fitting (guide collar on primary head).
Detail drawings see Sect. 1.5.
1.3.3 Grounding
FE
Functional ground, wire > 4 mm
2
Cu.
R Pipeline
RF Pipe
flanges
V Interconnecting wires,
bolted to the housing
•
All flowmeters must be properly
grounded.
•
The grounding wire should not
transmit any interference voltage.
Therefore do not ground any other
electrical device simultaneously
with this conductor.
Grounding is carried out via the functional
ground that is connected to the U-clamp
terminal (9). See also Section 2 “Electrical
connection“.
When connected to functional extra-low
voltages,
24V DC, protective separation (PELV)
must be ensured (VDE 0100/VDE 0106 or
IEC 364/IEC 536).
FE
V V
R R
RF RF
1