AB-6880
8
Measuring range and accuracy
IMPORTANT:
Flow measuring accuracy shown in the below is for the valve sensor measuring 7 to 17
°
C and 45 to 65
°
C
ranges, 0.1 to 0.8 MPa pipe pressure, and 0.03 to 0.3 MPa differential pressure. Without these ranges, the flow
rate measuring accuracy may lower.
Item Specification
Setting range
Model number
Nominal size
Cv value
Max. setting flow rate
FVY5160J0011
DN15 (1/2”)
1.0
10 l/min
FVY5160J0012
DN15 (1/2”)
2.5
25 l/min
FVY5160J0013
DN15 (1/2”)
6.0
60 l/min
FVY5160J0021
DN25 (1”)
10
100 l/min
FVY5160J0022
DN25 (1”)
16
160 l/min
FVY5160J0041
DN40
(1
1
/
2
”) 25
250
l/min
FVY5160J0042
DN40
(1
1
/
2
”) 40
400
l/min
FVY5160J0051
DN50 (2”)
65
650 l/min
FVY5160J0061
DN65
(2
1
/
2
”) 95
950
l/min
FVY5160J0081
DN80 (3”)
125
1250 l/min
Flow rate measuring
Measuring
accuracy
(Factory preset)
Measuring
range
0 MPa to 1.0 MPa*
4
Pressure
measuring
Accuracy
±
0.5 %FS (factory preset)*
5
Measuring
range
0
°
C to 80
°
C
Valve sensor*
3
Temperature
measuring
Accuracy
±
1.0
°
C (factory preset)*
6
(within 0
°
C to 80
°
C measuring range, at -25
°
C to 40
°
C temperature difference between measuring
temperature and ambient temperature)
Measuring
range
0
°
C to 80
°
C
Pipe
Sensor*
7
Temperature
measuring
Accuracy
±
1
°
C (factory preset)*
8
Notes:
∗
1
Δ
Pv is differential pressure between valve inlet pressure (Pvin) and outlet pressure (Pvout).
∗
2 Flow rate measuring accuracy above may change depending on the conditions including valve positions, differential pressure, etc.
∗
3 Valve sensor is the temperature and pressure sensors mounted onto the valve (Model FVY5160J), measuring valve surface temperature
and inlet and outlet flow pressure.
∗
4 When you test the withstand pressure of the valve sensor manufactured on and after Nov. 1, 2011 (date code: 1144 or greater), up to
1.6 MPa pressure can be applied to the valve sensor.
∗
5 The above pressure measuring accuracy is for the 7
°
C to 65
°
C flow temperature. If the flow temperature is out of the 7
°
C to 65
°
C range,
the valve sensor flow measuring accuracy may lower.
∗
6 For accurate measuring of flow temperature, thermal insulation is required. Refer to the subsection
Heat insulation
for applying thermal
insulation.
∗
7 Pipe sensor is the temperature sensor for pipe surface (ModelTY7820Z).
∗
8 For accurate measuring of flow temperature, thermal insulation is required. Refer to
AB-6923 Specifications/Instructions of
Temperature Sensor for Pipe Surface (Pt100 RTD) Model TY7820Z
.
0
10 20 30
40 50 60 70
80 90 100
DN15
Cv1.0,
±
10 %RD
Cv2.5,
±
7 %RD
Cv6.0
±
7 %RD
DN25 to DN80
±
5 %RD
DN15
±
3
％
FS*
2
DN25-DN80
±
1
％
FS*
2
300
250
200
150
100
50
0
Δ
Pv*
1
(k
Pa)
Flow rate (%)
