Environmental And Process Conditions For Model Fmt2Xx - ABB SensyMaster FMT230 Commissioning Instruction
Thermal mass flowmeter
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FMT230, FMT250 THERMAL MASS FLOWMETER | CI/FMT230/250-EN REV. B
Environmental and process conditions for model FMT2xx...
Ambient temperature T
amb.
Measuring medium temperature T
IP rating / NEMA rating
Measuring medium temperature (Ex data) for model FMT2x0-A1... in Zone 1, Zone 21
The table shows the maximum permissible measuring medium temperature as a function of ambient temperature and temperature
class. The permissible measuring medium temperature specified in Environmental and process conditions for model FMT2xx... must
not be up-scaled!
Ambient temperature T
amb.
−40 °C to 40 °C
(−40 °F to 104 °F)
−40 °C to 50 °C
(−40 °F to 122 °F)
−40 °C to 60 °C
(−40 °F to 140 °F)
−40 °C to 70 °C
(−40 °F to 158 °F)
Measuring medium temperature (Ex data) for model FMT2x0-A2... in Zone 2, Zone 22
The table shows the maximum permissible measuring medium temperature as a function of ambient temperature and temperature
class. The permissible measuring medium temperature specified in Environmental and process conditions for model FMT2xx... must
not be up-scaled!
Ambient temperature T
amb.
−40 °C to 40 °C
(−40 °F to 104 °F)
−40 °C to 50 °C
(−40 °F to 122 °F)
−40 °C to 60 °C
(−40 °F to 140 °F)
−40 °C to 70 °C
(−40 °F to 158 °F)
medium
T1
280 °C (536 °F)
185 °C (365 °F)
280 °C (536 °F)
185 °C (365 °F)
280 °C (536 °F)
185 °C (365 °F)
280 °C (536 °F)
185 °C (365 °F)
T1
300 °C (572 °F)
290 °C (554 °F)
300 °C (572 °F)
290 °C (554 °F)
300 °C (572 °F)
290 °C (554 °F)
300 °C (572 °F)
290 °C (554 °F)
Temperature class
T2
T3
90 °C (194 °F)
90 °C (194 °F)
90 °C (194 °F)
90 °C (194 °F)
Temperature class
T2
T3
195 °C (383 °F)
195 °C (383 °F)
195 °C (383 °F)
195 °C (383 °F)
−20 to 70 °C (−4 to 158 °F)
−20 to 150 °C (−4 to 302 °F)
IP 65, IP 67 / NEMA 4X,Type 4X
T4
T5
90 °C (194 °F)
—
90 °C (194 °F)
—
90 °C (194 °F)
—
90 °C (194 °F)
—
T4
T5
130 °C (266 °F)
95 °C (203 °F)
130 °C (266 °F)
95 °C (203 °F)
130 °C (266 °F)
—
130 °C (266 °F)
—
7
T6
—
—
—
—
T6
80 °C (176 °F)
—
—
—
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