Installation In Hazardous Areas; Maximum Temperature Specifications For Ex Use - Siemens SITRANS F Series Operating Instructions Manual

Safety notes
2.4 Use in hazardous areas
2.4.1

Installation in hazardous areas

Hazardous area approvals
The device is approved for use in hazardous areas and has the approvals listed in Certificates
and approvals. (Page 111) Special conditions for safe installation and operation specified by
each approval authority are included in the relevant certificate.
Installation variations
Note
Requirements for safe installation
● FC310 can be installed in Zone 1, Div. 1 as Intrinsically Safe or Flameproof.
● Requirement for IS circuit is that the maximum input voltage Vi to DSL is 20 VDC, Ii is
maximum 484 mA, Pi < 2.3 W
2.4.2

Maximum temperature specifications for Ex use

Maximum temperature specifications for Ex use
FC310 flowmeter
Temperature classification with and without dust is related to the process temperature and
ambient temperature as listed below.
The maximum allowable process fluid temperatures with respect to temperature class for the
device when used with potentially explosive gases in a maximum ambient temperature of
+60°C are:
FCS300 Sensor and Pedestal Adapter:
● T4 at process temperature ≤ 100°C and Ta 58°C
● T3 at process temperature ≤ 150°C and Ta 38°C
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Operating Instructions, 01/2019, A5E44036384-AB
SITRANS FC310