10
SensyMaster FMT230, FMT250
THERMAL MASS FLOWMETER | OI/FMT230/250-EN REV. C
… 2 Use in potentially explosive atmospheres
… Temperature data
Measuring medium temperature (Ex data) for model FMT2x0-F1… in Class I Division 1 and Class II Division 1
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…
on
page 8 must not be up-scaled!
Temperature class
Ambient temperature T
amb.
T1
T2
T3
T4
T5
T6
−
40 °C to 40 °C
(
−
40 °F to 104 °F)
280 °C (536 °F)
185 °C (365 °F)
90 °C (194 °F)
90 °C (194 °F)
—
—
−
40 °C to 50 °C
(
−
40 °F to 122 °F)
280 °C (536 °F)
185 °C (365 °F)
90 °C (194 °F)
90 °C (194 °F)
—
—
−
40 °C to 60 °C
(
−
40 °F to 140 °F)
280 °C (536 °F)
185 °C (365 °F)
90 °C (194 °F)
90 °C (194 °F)
—
—
−
40 °C to 70 °C
(
−
40 °F to 158 °F)
280 °C (536 °F)
185 °C (365 °F)
90 °C (194 °F)
90 °C (194 °F)
—
—
Measuring medium temperature (Ex data) for model FMT2x0-F1… in Class I Division 2 and Class II Division 2
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…
on
page 8 must not be up-scaled!
Temperature class
Ambient temperature T
amb.
T1
T2
T3
T4
T5
T6
−
40 °C to 40 °C
(
−
40 °F to 104 °F)
300 °C (572 °F)
290 °C (554 °F)
195 °C (383 °F)
130 °C (266 °F)
95 °C (203 °F)
80 °C (176 °F)
−
40 °C to 50 °C
(
−
40 °F to 122 °F)
300 °C (572 °F)
290 °C (554 °F)
195 °C (383 °F)
130 °C (266 °F)
95 °C (203 °F)
—
−
40 °C to 60 °C
(
−
40 °F to 140 °F)
300 °C (572 °F)
290 °C (554 °F)
195 °C (383 °F)
130 °C (266 °F)
—
—
−
40 °C to 70 °C
(
−
40 °F to 158 °F)
300 °C (572 °F)
290 °C (554 °F)
195 °C (383 °F)
130 °C (266 °F)
—
—