Ambient Conditions; Ambient Temperature; Process Conditions; Measured Medium Temperature - ABB SensyMaster FMT230 Commissioning Instruction

24 FMT230, FMT250 THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B
... 6 Installation

Ambient conditions

Ambient temperature

• Standard: −20 to 70 °C (−4 to 158 °F)
• Optional (in preparation): −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 temperature data in Use in potentially
explosive atmospheres in accordance with ATEX and IECEx on
page 6 and Use in potentially explosive atmospheres in
accordance with FM and CSA on page 12 beachten!

Measured medium temperature

Devices with ceramic element and flange connection
• Standard and explosion-proof design:
−20 to 150 °C (−4 to 302 °F)
• High temperature design:
−20 to 300 °C (−4 to 572 °F)
• DVGW design:
0 to 70°C (32 to 158 °F)
The approved measuring medium temperature T
depends on the selected sensor connection and the design of
the pipe components.
The following temperature specifications apply:
Sensor connection
Threaded connection DIN 11851
Clamp ring fitting
Pipe components with ball valve
Integrated hot tap fitting
also
medium
T
medium
−20 to 150 °C (−4 to 302 °F)
−20 to 150 °C (−4 to 302 °F)
Maximum 150 °C (302 °F)
See Integrated hot tap fitting on
page 25
Maximum operating pressure
Sensor connection
Flange in accordance with
DIN EN 1092, PN 40
Threaded connection DIN 11851
Clamp ring fitting
Integrated hot tap fitting
Pressure loss
A Pressure loss
Figure 9: Pressure loss in logarithmic representation
Maximum measuring medium
pressure P
4 MPa, 40 bar (580 psi)
1.6 MPa, 16 bar (232 psi)
2 MPa, 20 bar (290 psi)
See Integrated hot tap fitting on
page 25
B Mass flow
medium