JUMO flowTRANS MAG H01, Руководство по эксплуатации

Страница: 41 / 260

41
4 Mounting
4.3 Mounting
4.3.1 Flow direction
4.3.2 Electrode axis
4.3.3 Inlet section, outlet section
The device records the flow in both directions.
Default setting: forward flow direction
Identification marking:
•
Arrow direction on the device
• Alignment of the sensor housing during initial
startup (default setting) as displayed on the ad-
jacent figures
G00
6
5
7-
01
Electrode axis (1) horizontal if possible or rotated
max. 45°.
max. 45°
(1)
The measuring principle is independent of the flow
profile as long as turbulence does not extend into
the measurement zone, e.g., downstream from
double elbows (1), in case of tangential inflow or
where gate valves are partially open upstream of
the sensor.
In these cases, measures must be taken to nor-
malize the flow profile.
•
Do not install fittings, elbows or valves, etc. di-
rectly upstream of the sensor (1).
• Flaps must be installed so that the flap blade
does not extend into the sensor.
• Valves or other shut-off devices should be
mounted in the outlet section (2).
Experience has shown that a straight inlet section
3 x DN and a straight outlet section 2 x DN is suffi-
cient in most cases (DN = nominal width of the
transmitter - see the adjacent figure).
For test stands, the reference conditions of
10 x DN for the straight inlet and 5 x DN for the
straight outlet must be provided according to EN
29104/ISO 9104.
G00983
(1) (2)
2xDN 3xDN