Specifications
D184B140U02 FSM4000 115
12 Specifications
Change from one to two column s
12.1 Measuring accuracy
12.1.1 Reference conditionsper EN 29104
Fluid temperature 20 °C (68 °F) ± 2 K
Ambient temperature 20 °C (68 °F) ± 2 K
Power supply Line voltage as per name plate
U
N
± 1 %
Installation conditions
Upstream > 10 x DN
straight section
Downstream > 5 x DN
straight section
DN = Flowmeter sensor size
Warm-up phase 30 min
12.1.2 Maximum measuring error
Pulse output
DN 1 ... DN 2 (1/25 ... 1/12"):
± 1% of measured value, ± 0.001 Q
maxDN
DN 3 ... DN 1000 (1/10 ... 40"):
Q > 0.05 Q
maxDN
± 0.5% of measured value
Q < 0.05 Q
maxDN
± 0.00025 Q
maxDN
Q
maxDN
= maximum flowrate for the flowmeter size 10 m/s
Analog output effects
Same as pulse output plus ±0.1% of rate ±0.01 mA
0 6,5 13,1
19,7 26,2
32,8 ft/s
G00456
0,0 %
1,0 %
2,0 %
3,0 %
4,0 %
5,0 %
6,0 %
0246810m/s
DN 3...1000
(1/10...40”)
DN 1...2
(1/25...1/12”)
Y
X
Fig. 59
Y Accuracy ± of rate
X Flow velocit
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