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DS440IS
3.3.7 Optical fibre connection
The following can be used between D440IS and RS232 fibre adapter in a safe zone or between two
D440IS in a hazardous zone:
200 µm HCD for sections of up to 500m
Only compatibility with Fort Fibre TR60 modules is guaranteed.
3.4
Global protection characteristics of the system
3.4.1
For ambient temperatures of up to +40°C
Protection modes: Ex e m ia
Gas group: IIC
Gas temperature category: T4
Protection degree: IP54
Maximum surface temperature of casing = 100°C
Operating ambient temperature: (- 20°C < Tamb < + 40°C)
3.4.2
For ambient temperatures of up to +55°C
Protection modes: Ex e m ia
Gas group: IIC
Gas temperature category: T4
Protection degree: IP54
Maximum surface temperature of casing = 100°C
Operating ambient temperature: (- 20°C < Tamb < + 55°C)