ABB FSM4000 - Specification; Measuring Accuracy; Maximum Measuring Error; Sensor SE41 F Temperature Graph

FSM4000 ELECTROMAGNETIC FLOWMETER | OI/FSM4000-EN REV. E 125
13 Specification
Note
The device data sheet is available in the ABB download area at
www.abb.com/flow.
Measuring accuracy
Reference conditionsin accordance with EN 29104
Measuring medium temperature
20 °C (68 °F) ±2 K
Ambient temperature
20
°C (68 °F) ±2 K
Power supply
Nominal voltage as per name plate UN ± 1 %
Installation conditions
•
Inlet section.
> 10 × DN straight section
•
Outlet section:
> 5 × DN straight section
DN = Sensor nominal diameter
Warm-up phase
30 min
Maximum measuring error
Pulse output
• DN 3 to DN 1000 (¹⁄₁₀ to 40″):
Q > 0.05 Q
max
DN ±0.5 % of measured value
• Q < 0.05 Q
max
DN ± 0.00025 Q
max
DN
Q
max
DN = maximum flow rate of the nominal diameter at 10 m/s
Analog output effects
Same as pulse output plus ±0.1 % of measured value ±0.01 mA
Y
Measured error ± of measured value
X
Flow velocity v
Figure 71: Analog output effects
Sensor SE41F
Temperature graph
1
Ambient temperature °C
2
Measuring medium temperature
°C
3
Standard flange (steel):
Hard/soft rubber max. 90/60 °C
(194 to 140 °F)
4
Stainless steel flange
5
Standard flange (steel): PTFE /
PFA / ETFE max. 130 °C (266 °F)
6
High temperature: thick PTFE /
PFA max. 180 °C (356 °F)
Figure 72: Measuring medium temperature dependent on the ambient temperature
Max. permissible cleaning temperature
PTFE-, PFA-design
CIP cleaning
Liner
Flowmeter
sensor
T
max
t
max
Min
T
amb.
Steam
cleaning
PTFE, PFA
150 °C (302 °F)
60
25 °C (77 °F)
Wet cleaning
PTFE, PFA
140 °C (284 °F)
60
25 °C (77 °F)
If the ambient temperature is > 25 °C, the difference must be
subtracted from the max. cleaning temperature.
T
max - ∆ °C.∆ °C = (Tamb. - 25 °C)