12-6
IM 01E30D01-01EN
    <12.  OUTLINE>
12.3  STANDARD PERFORMANCE
Accuracy:
General-Purpose Use;  Vs: Span setting value (m/s)
Size in mm (in.)
Spaninm/s(ft/s)
Accuracy
25 to 100  
(1 to 4)
0.3≤Vs<1 
(1≤Vs<3.3)
±0.25 cm/s  
(at indications less than 
50% of span)
±(0.4+0.1/Vs)% of rate  
(at indications 50% or 
more of span)
1≤Vs<2 
(3.3≤Vs<6.7)
±0.2% of span  
(at indications less than 
35% of span)
±0.5% of rate  
(at indications 35% or 
more of span)
2≤Vs≤10 
(6.7≤Vs≤33)
±0.16% of span  
(at indications less than 
30% of span)
±0.5% of rate  
(at indications 30% or 
more of span)
150 to 200  
(6 to 8)
0.3≤Vs<1 
(1≤Vs<3.3)
±0.30 cm/s  
(at indications less than 
50% of span)
±(0.3+0.2/Vs)% of rate  
(at indications 50% or 
more of span)
1≤Vs<2 
(3.3≤Vs<6.7)
±0.3% of span  
(at indications less than 
35% of span)
±0.5% of rate  
(at indications 35% or 
more of span)
2≤Vs≤10 
(6.7≤Vs≤33)
±0.16% of span  
(at indications less than 
30% of span)
±0.5% of rate  
(at indications 30% or 
more of span)
Explosion proof Type;  Vs: Span setting value (m/s)
Size in mm (in.)
Spaninm/s(ft/s)
Accuracy
25 to 100  
(1 to 4)
0.3≤Vs<1 
(1≤Vs<3.3)
±0.30 cm/s  
(at indications less than 
50% of span)
±(0.3+0.2/Vs)% of rate  
(at indications 50% or 
more of span)
1≤Vs<2 
(3.3≤Vs<6.7)
±0.3% of span  
(at indications less than 
35% of span)
±0.5% of rate  
(at indications 35% or 
more of span)
2≤Vs≤10 
(6.7≤Vs≤33)
±0.16% of span  
(at indications less than 
30% of span)
±0.5% of rate  
(at indications 30% or 
more of span)
150 to 200  
(6 to 8)
0.3≤Vs<1 
(1≤Vs<3.3)
±0.50 cm/s  
(at indications less than 
50% of span)
±(0.5/Vs)% of rate  
(at indications 50% or 
more of span)
1≤Vs<2 
(3.3≤Vs<6.7)
±0.45% of span  
(at indications less than 
30% of span)
±0.25% of span  
(at indications from 30% 
or more to less than 45% 
of span)
0.5% of rate  
(at indications 45% or 
more of span)
2≤Vs≤10 
(6.7≤Vs≤33)
±0.24% of span  
(at indications less than 
35% of span)
±0.5% of rate  
(at indications 35% or 
more of span)
Theaccuracyofaproductbeforeshipmentisdened
as totalized value at the result of calibration test in our 
wateractualowtestfacility.
Calibrated conditions in our water actual test facility are 
as follows:
Fluid temperature:  20 ± 10°C
Ambient temperature:  20 ± 5°C
Length of straight runs:   10 D or more on the up-
stream side; 5 D or more on 
the downstream side
Reference conditions:  Similar to BS EN29104
     (1993); ISO 9104 (1991)