Proline Promag W 400
24 Endress+Hauser
Operation in zones of severe electrical interference
The measuring system meets the general safety requirements (→ 85) and EMC specifications
(→ 32).
Grounding is by means of the ground terminal provided for the purpose inside the connection
housing. The stripped and twisted lengths of cable shield to the ground terminal must be as short as
possible.
Performance characteristics
Reference operating
conditions
In accordance with DIN EN 29104
• Fluid temperature: +28±2 °C (+82±4 °F)
• Ambient temperature range: +22±2 °C (+72±4 °F)
• Warm-up period:30 min
Installation
• Inlet run > 10 × DN
• Outlet run > 5 × DN
• Sensor and transmitter grounded.
• The sensor is centered in the pipe.
No special requirements must be observed at the inlet and outlet runs to keep within the in-
service maximum permissible errors for custody transfer.
To calculate the measuring range, use the Applicator sizing tool (→ 88)
Maximum measured error Error limits under reference operating conditions
o.r. = of reading
Volume flow
• ±0.5 % o.r. ± 1 mm/s (0.04 in/s)
• Optional: ±0.2 % o.r. ± 2 mm/s (0.08 in/s)
Fluctuations in the supply voltage do not have any effect within the specified range.
2.5
[%]
2.0
1.5
1.0
0.5
0
0.2 %
0.5 %
0
1
2 4 6 8 10 [m/s]
v
5 10 15 20 25 30 32 [ft/s]0
A0005531
14 Maximum measured error in % o.r.