14  CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER  |  CI/FCB400/FCH400-EN REV. H   
 
 
… 2  Use in potentially explosive atmospheres 
… Temperature data 
 
Measuring medium temperature for sensors in integral mount design with dual-compartment housing 
 
 
Model FCx4xx-A1… and FCx4xx-F1… in Zone 1, Division 1 
The table shows the maximum permissible measuring medium temperature as a function of ambient temperature and temperature 
class. 
 
  Temperature class
Ambient temperature T
amb.
 T1 T2 T3 T4 T5 T6
≤ 30 °C (≤ 86 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)
≤ 40 °C (≤ 104 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)
≤ 50 °C (≤ 122 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)
≤ 60 °C (≤ 140 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)
≤ 70 °C (≤ 158 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)
*  Only with the ‘Extended tower length – TE1, TE2 or TE3’ order option 
 
 
Model FCx4xx-A2… and FCx4xx-F2…  in Zone 2, Division 2 
The table shows the maximum permissible measuring medium temperature as a function of ambient temperature and temperature 
class. 
 
  Temperature class
Ambient temperature T
amb.
 T1 T2 T3 T4 T5 T6
≤ 30 °C (≤ 86 °F)  205 °C (400 °F) 205 °C (400 °F) 195 °C (383 °F)* 130 °C (266 °F) 95 °C (203 °F) 80 °C (176 °F)*
50 °C (122 °F)
≤ 40 °C (≤ 104 °F)  205 °C (400 °F) 205 °C (400 °F) 195 °C (383 °F)* 130 °C (266 °F) 95 °C (203 °F) —
≤ 50 °C (≤ 122 °F)  205 °C (400 °F) 205 °C (400 °F) 195 °C (383 °F)* 130 °C (266 °F) — —
≤ 60 °C (≤ 140 °F)  205 °C (400 °F) 205 °C (400 °F) 195 °C (383 °F)* 130 °C (266 °F) — —
≤ 70 °C (≤ 158 °F)  205 °C (400 °F)*
130 °C (266 °F)
205 °C (400 °F)*
130 °C (266 °F)
195 °C (383 °F)*
130 °C (266 °F)
130 °C (266 °F) — —
*  Only with the ‘Extended tower length – TE1, TE2 or TE3’ order option