Thông số kỹ thuật
Type |
VZF(A) II |
||||||||
Nominal diameter |
DN mm inch |
15 1/2 |
20 3/4 |
25 1 |
40 1 1/2 |
50 2 |
|||
Installation length |
mm |
165 |
165 |
190 |
300 |
350 |
|||
Nominal pressure |
|||||||||
-threaded ends |
PN bar |
16 |
16 |
16 |
16 |
16 |
|||
-flanges |
PN bar |
25 |
25 |
25 |
25 |
25 |
|||
Max. medium temperature |
Tmax |
°C |
130, 180 |
||||||
Maximum flow rate |
Qmax |
l/h |
600 |
1500 |
3000 |
9000 |
30000 |
||
Continuous flow rate |
Qcont |
l/h |
400 |
1000 |
2000 |
6000 |
20000 |
||
Minimum flow rate |
Qmin |
l/h |
20 |
40 |
75 |
225 |
750 |
||
Approx. starting flow rate |
l/h |
4 |
12 |
30 |
90 |
300 |
|||
Max. permissible error |
<±1 %, (A) ±0.5 % of actual value |
||||||||
Repeatability |
±0.2 %, (A) ±0.1 % |
||||||||
Measuring chamber volume |
approx. |
cm3 |
12 |
36 |
100 |
330 |
1200 |
||
Safety filter mesh size |
mm |
0.400 |
0.400 |
0.400 |
0.800 |
0.800 |
|||
Dirt filter max. mesh size |
mm |
0.100 |
0.100 |
0.250 |
0.250 |
0.250 |
|||
Housing finish |
enameled red RAL 3013 |
||||||||
Weight with: |
|||||||||
-threaded ends |
approx. |
kg
|
2.2 |
2.5 |
4.2 |
17.3 |
– |
||
– flanges PN 25 |
approx. |
kg
|
3.8 |
4.5 |
7.5 |
20.3 |
41.0 |
||
Smallest readable amount |
|||||||||
Total volume |
l, m3, G |
Up to 3 decimal places (dynamic) |
|||||||
Total mass |
kg, t, lb |
Up to 3 decimal places (dynamic) |
|||||||
Digital flow rate display |
(l, G, m3, |
Up to 3 decimal places (dynamic) |
|||||||
Registration capacity |
l, m3, G |
8 digits |
|||||||
Registration time until overrun |
Qcont |
>100 years |
|||||||
Outputs |
|||||||||
Three |
freely selectable outputs are available, totally independent of each other |
||||||||
Pulse value for totalizer |
volume or mass pulse 0…200 pulse/sec. (50 % duty cycle) |
||||||||
Current 4…20 mA for flowrate |
volume flow, mass flow or temperature signal to 4…20 mA |
||||||||
Frequency for flow |
volume flow, mass flow or temperature signal to frequency 0…200 Hz (50 % duty cycle) |
||||||||
Limiting switch |
Qmin, |
minimum, maximum and hysteresis parameterized |
|||||||
State switch |
Alarm, error state and on/off parameterized |