ABB SensyMaster FMT230, Инструкция по эксплуатации

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SensyMaster FMT230, FMT250 THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C 25
Ambient conditions
Ambient temperature
• Standard: − 20 to 70 °C ( − 4 to 158 °F)
• Optional: − 40 to 70 °C ( − 40 to 158 °F)
Relative humidity
Maximum 85 % RH, annual average ≤ 65 % RH
IP rating
In accordance with EN 60529: IP 65 / IP 67
NEMA IP rating
NEMA 4X
Process conditions
Note
When using the device in potentially explosive atmospheres,
note the additional connection data in
Use in potentially
explosive atmospheres on page 6!
Measured medium temperature
Devices with ceramic sensor element and flanged connection:
Design T
medium
Standard and explosion-proof design − 20 to 150 °C ( − 4 to 302 °F)
High temperature design* − 20 to 300 °C ( − 4 to 572 °F)
Low temperature design − 40 to 150 °C ( − 40 to 302 °F)
DVGW Version − 20 to 100°C ( − 4 to 212 °F)
* Not in connection with explosion-proof design.
The approved measuring medium temperature T
medium
also
depends on the selected sensor connection and the design of
the pipe components.
The following temperature specifications apply:
Sensor connection T
medium
Flange DN25 − 40 to maximum 300 °C
( − 40 to maximum 508 °F)
Threaded connection DIN 11851 − 20 to 140 °C ( − 4 to 284 °F)
Clamp ring fitting − 40 to 150 °C ( − 40 to 302 °F)
Pipe components with ball valve Maximum 150 °C (302 °F)
Integrated hot tap fitting − 20 to 150 °C ( − 4 to 302 °F)
Maximum operating pressure
Sensor connection Maximum measuring medium
pressure P
medium
Flange in accordance with
DIN EN 1092, PN 40 4 MPa, 40 bar (580 psi)
Threaded connection DIN 11851 1.6 MPa, 16 bar (232 psi)
Clamp ring fitting 2 MPa, 20 bar (290 psi)
Integrated hot tap fitting See Integrated hot tap fitting on
page 26
Pressure loss
A
Pressure loss
B
Mass flow
Figure 12: Pressure loss in logarithmic representation