Siemens SITRANS FC430 Operating Instructions Manual page 23

* Temperature class (dependent on the "Maximum Process Temperature")
** Upper ambient temperature (dependent on the "Maximum Process Temperature")
For US:
FCT030 Industrial version transmitter (can be installed in Zone 1 for gas and Zone 21 for dust)
and Class I +II+III Group A, B, C, D, E, F, G):
Certificate: cCSAus 2508628
Class I, II, III Division 1 Gp A, B, C, D, E, F, G
Class I Zone 1: AEx db eb ia [ia Ga] IIC T6 Gb
Class II Zone 21: AEx tb [ia Da] IIIC T85°C Db
FCS400 sensor + DSL (can be installed in Zone 1 for gas and Zone 20/21 for dust) and Class
I +II+III Group A, B, C, D, E, F, G):
Certificate: 2508644
Class I, II, III Division 1 Gp A, B, C, D, E, F, G
For gas:
AEx db ia IIC T* Ga/Gb
AEx db IIC T* Ga/Gb
(Ga/Gb: Zone 0 in pipe and Zone 1 in environment)
For dust:
AEx ia IIIC T* °C Da
AEx tb IIIC T* °C Db
Ta = -40°C to +60°C
* Temperature class (dependent on the process temperature and the ambient temperature")
FC430 compact system (can be installed in Zone 1 for gas and Zone 21 for dust) and Class I
+II+III Group A, B, C, D, E, F, G):
Certificate: CSA 2508628
Class I, II, III Division 1 Gp A, B, C, D, E, F, G
AEx db eb ia [ia Da] IIC Ga/Gb Ta = -40 to ** °C
AEx tb [ia Da] IIIC T ** °C Db
* Temperature class (dependent on the "Maximum Process Temperature")
** Upper ambient temperature (dependent on the "Maximum Process Temperature")
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA
Safety notes
2.4 Use in hazardous areas
23