Description Of Parameters - ABB FV4000 Operating Instruction

Parameterization
8.7

Description of parameters

8.7.1 Nominal size
This parameter is used to adapt the electronics, which are the same for all nominal sizes, to the
corresponding flowmeter sensor. The nominal size is factory-set as appropriate for the
corresponding flowmeter sensor (see name plate).
8.7.2 Mean k factor
The mean k factor shown on the display has to match the value on the flowmeter sensor. Every
meter is calibrated with five measuring points on the test bench. The calibration factors (k
factors) are entered in the flowmeter sensor and recorded on the test log. A mean calibration
factor is calculated and engraved on the flowmeter sensor. The following tables show the typical
k factors for corresponding nominal sizes, along with the frequencies generated in the flowmeter
when measuring fluids and gases.
Important
The values indicated are typical k factors and frequencies for the associated device models.
Precise data can be found in the test logs included in the respective scopes of supply.
FV4000-VT4/VR4 Vortex flowmeter
100
150
200
250
300
84
Nominal size
DN Inch
Max. (1/m
15 1/2
25 1
40 1 1/2
50 2
80 3
4
6
8
10
12
Fluid f
Typical k
factor
3
DIN
)
225000 370
48000 240
14500 270
7500 180
2100 140
960 100
290 50
132 45
66 29
39 26
FV4000 / FS4000
at Qvmax Gas f
max
(Hz)
ANSI DIN
450 1520
400 2040
270 2120
176 1200
128 1000
75 700
50 480
40 285
36 260
23 217
at Qvmax
max
(Hz)
ANSI
1980
1850
1370
1180
780
635
405
240
225
195
D184B097U02