8
OIO 15en Edition 2020-05
Operating Instructions
Operational limits
Technical data
Technical data
Operational limits
The values specified on the rating plate and the calibration certificate apply. The permissible operational
limits of individual values influence each other so that every application is checked individually by the
manufacturer when selecting the flowmeter.
If no operating data are provided by the orderer, standardized substitute operating data are used.
Load due to pressure pulsation
Maximum values
The following table shows the respective maximum values that, however, may not occur simultaneously.
In addition, the operational limits of the corresponding end connection, of the sealing material of the pick
up and of the temperature sensor are to be observed.
Tab. 1 Maximum values
Strong pressure pulses in the system can reduce the lifetime of
the flowmeter.
Fig. 1
Pressure pulses
Sizes
OME 13
OME 20
OME 32
OME 52
Flow rate [l/min]
Q
max
15
45
150
525
Q
nom
10
30
100
350
Q
min
0.1
0.3
1
3.5
Pressure max. [bar]
40
40
40
40
Temperature [°C]
min.–max.
-20...+125
Viscosity [mm
2
/s]
min.–max.
1 – 1 000 000
Measuring chamber volume [ml/U]
1.65
6.24
25.6
112.8
Rotation speed [1/min]
n (Q
max
)
9120
7260
5850
4658
n (Q
nom
)
6060
4830
3900
3105
n (Q
min
)
61
48
39
31
Number of poles [p]
K1
2
2
2
2
K-factor [P/l]
K1
1214
321
78
17.73
Milliliters per pulse [ml/P]
K1
0.824
3.12
12.8
56.4
Pulse frequency [Hz]
f1 (Q
max
)
304
242
195
155
f1 (Q
nom
)
202
161
130
104
f1 (Q
min
)
2.0
1.6
1.3
1.0
10
30
20
40
t [ms]
30
10
20
0
p
[bar]
