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11.2.1 Options regarding installation in potentially explosive atmospheres
Safe area
or Zone 2/21
or Cl.1 Div. 2
11.2.2 ATEX Marking
Transmitter, remote mount design
Zone 2/21
II3(1)G Ex ec [ia][ib] IIC T4 Gc
II 2D Ex tb IIIC T115°C Db
T
= -20 ... 50 °C (-4 ... 122 °F)
amb
Optional -40 °C for ambient temperature
CI/FMT500-IG-EN
Flowmeter sensor, remote mount design
Terminal box Zone 1, flowmeter sensor Zone 0
II 1/2G Ex ia IIC T4 Ga
II 2D Ex tb IIIC T80°C Db
Terminal box and flowmeter sensor Zone 1
II 2G Ex ia IIC T4 Gb
II 2D Ex tb IIIC T100°C or 200°C or
300°C Db
T
= -20 ... 80 °C (-4 ... 176 °F)
amb
Optional -40 °C for ambient temperature
Sensyflow FMT500-IG
Ex relevant specifications
Zone 1/21 or Cl. 1 Div.1
Zone 0 or Zone 1 or Cl. 1 Div.1
Integral mount design
Transmitter Zone 1, flowmeter sensor Zone 0
II 1/2G Ex db eb [ia][ib] IIC T4 Ga
II 2D Ex tb IIIC T115°C Db
Transmitter and flowmeter sensor Zone 1
II 2G Ex db eb [ia][ib] IIC T4...T1 Gb
II 2D Ex tb IIIC T100°C or 200°C or
300°C Db
T
= -20 ... 50 °C (-4 ... 122 °F)
amb
Optional -40 °C for ambient temperature
EN - 51
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