YOKOGAWA DY025, User Manual, Page: 95 / 138

9-16 IM 01F06A00-01E
9. GENERAL DESCRIPTION
■
Detailed Accuracy (for Table 9.5.3 Range of Fixed Accurancy Flow Velocity.)
Volumetric flow rate at operation condition *Accuracy: of Reading
Liquid
Gas,
Steam
Model
Code
DY015
DY025
DY040
DY050
DY080
DY100
DY150
DY200
DY250
DY300
DY015
DY025
DY040
DY050
DY080
DY100
DY150
DY200
DY250
DY300
General Type Reduced Bore Type (/R2) Multi-Variable Type (/MV)
±
1.0%
(20000 Re)
±
1.0%
(Velocity 35m/s or less)
±
1.5%
(Velocity 35m/s up to 80m/s )
±
1.0%
(Velocity 35m/s or less)
±
1.5%
(Velocity 35m/s up to 80m/s )
Reduced Bore Type (/R1)
±
1.0%
(Velocity 35m/s or less)
±
1.5%
(Velocity 35m/s up to 80m/s )
±
1.0%
(20000 Re < 2000*D)
±
0.75%
(2000*D
Re
)
±
1.0%
(20000 Re < 1500*D)
±
0.75%
(1500*D Re )
±
1.0%
(20000 Re < 1000*D)
±
0.75%
(1000*D Re )
±
1.0%
(20000 Re < 1500*D)
±
0.75%
(1500*D Re )
±
1.0%
(20000 Re)
±
1.0% (40000 Re)
±
1.0%
(20000 Re < 1000*D)
±
0.75%
(1000*D Re )
±
1.0%
(40000 Re < 1000*D)
±
0.75%
(1000*D
Re
)
±
1.0%
(40000 Re < 1000*D)
±
0.75%
(1000*D Re )
±
1.0%
(Velocity 35m/s or less)
±
1.5%
(Velocity 35m/s up to 80m/s )
DYF Tab-13
D : Inner diameter of digitalYEWFLO detecter (mm)
Re: Reynolds number (non unit)
Note: This table shows the accuracy of pulse output. In case of analog output, add up
±
0.1% of full scale to the values mentioned above.
Guarantee conditions of liquid volumetric flow rate: the accuracy of a product before shipment in our water actual test facility. Totalized value of
2000 pulse or greater, straight pipe length: upper 10D or greater, lower 5D or greater, Fluid temp. 20
±
10degC
Gas, Steam : The accuracy which is add up from liquid measurement accuracy. The accuracy is confirmed by actual measured value of typical
nominal size.
Mass flow or Volumetric flow rate at Normal/Standard condition:
for Multi-Variable Type and combination of Multi-Variable Type and Reduced Bore *Accuracy: of Reading
T13-b.EPS D : Inner diameter of digitalYEWFLO detecter (mm)
Re: Reynolds number (non unit)
Note: This table shows the accuracy of pulse output. In case of analog output, add up
±
0.1% of full scale to the values mentioned above.
Multi-Variable Type (/MV)/
Reduced Bore Type (/R1)
Multi-Variable Type (/MV)
±
2.0% (20000 Re < 1000*D)
±
1.5% (1000*D
Re)
±
2.0% (20000 Re < 1500*D)
±
1.5% (1500*D
Re)
±
2.0% (20000 Re)
±
2.0% (40000 Re < 1000*D)
±
1.5% (1000*D
Re)
±
2.0% (40000 Re)
±
2.0%
(Velocity 35m/s or less)
±
2.5%
(Velocity 35m/s up to 80m/s )
±
2.0%
(Velocity 35m/s or less)
±
2.5%
(Velocity 35m/s up to 80m/s )
Multi-Variable Type (/MV)/
Reduced Bore Type (/R1)
±
2.0% (20000 Re)
±
2.0%
(Velocity 35m/s or less)
±
2.5%
(Velocity 35m/s up to 80m/s )
Model
Code
DY025
DY040
DY050
DY080
DY100
DY150
DY200
DY015
DY025
DY040
DY050
DY080
DY100
DY150
DY200
Liquid
Gas,
Steam