Operation Manual
<13. GENERAL SPECIFICATIONS>
13-13
IM 01F06A00-01EN
13.5 Detailed Accuracy
Accuracy is the value in range of fi xed accuracy fl ow velocity. Refer to Table 13.7.
Volumetric fl ow rate at operation condition
Model Code Standard Type Multi-Variable Type (/MV) Reduced Bore Type (/R1) Reduced Bore Type (/R2)
Liquid
DY015
±1.0%
(20000Re<2000*D)
±0.75%
(2000*DRe)
DY025
±1.0%
(20000Re<1500*D)
±0.75%
(1500*DRe)
±1.0%
(20000Re<1500*D)
±0.75%
(1500*DRe)
±1.0%
DY040
±1.0%
(20000Re<1000*D)
±0.75%
(1000*DRe)
±1.0%
(20000Re<1000*D)
±0.75%
(1000*DRe)
±1.0%
DY050
DY080
DY100
DY150
±1.0%
(40000Re<1000*D)
±0.75%
(1000*DRe)
±1.0%
(40000Re<1000*D)
±0.75%
(1000*DRe)
DY200
±1.0%
(40000Re)
DY250
DY300
DY400
Gas,
Steam
DY015
±1.0%
(Velocity 35m/s or less)
±1.5%
(Velocity 35m/s to 80m/s)
DY025
±1.0%
(Velocity 35m/s or less)
±1.5%
(Velocity 35m/s to 80m/s)
±1.0%
(Velocity 35m/s or less)
±1.5%
(Velocity 35m/s to 80m/s)
DY040
±1.0%
(Velocity 35m/s or less)
±1.5%
(Velocity 35m/s to 80m/s)
DY050
DY080
DY100
DY150
DY200
DY250
DY300
DY400
D: Inner diameter of digitalYEWFLO (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 fl ow 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 ± 10°C
Gas, Steam: The accuracy which is add up from liquid measurement accuracy.
The accuracy is confi rmed by actual measured value of typical nominal size.