Siemens SITRANS MAG 1100 Operating Instructions Manual page 14

Safety notes
2.2 Installation in hazardous area
Temperature specifications for Ex use
Maximum process fluid tempera‐
ture [°C]
67
82
117
180 (Remote configuration)
150 (Compact configuration)
For dust protection, the surface temperature is equal to the process fluid temperature plus 5 °C
Special conditions for safe use
It is required that:
Electrical connections are in accordance with IEC/EN60079-14 (Installing Electrical Systems
in Explosion Hazardous Areas).
● The protective cover over the power supply is properly installed. For intrinsically safe circuits
● Appropriate cable connectors are used for the output circuits:
● Sensor and transmitter are connected to the potential equalization.
● Sensor insulation thickness is max. 100 mm (only insulated sensors).
● EN50281-1-2 is considered for installation in areas with combustible dust.
● When protective earth (PE) is connected, no potential difference between the protective
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the connection area can be opened.
– Intrinsically safe: blue
– Non-intrinsically safe: black
For intrinsically safe output circuits potential equalization must be maintained along the
entire connection path.
earth (PE) and the potential equalization (PA) can exist, even during a fault condition.
WARNING
"Flameproof enclosure" type of protection
Only open devices with type of protection "Flameproof enclosure" in hazardous areas
when the power to the device is turned off, otherwise there is a risk of explosion.
WARNING
Laying of cables
Cable for use in zone 1 and 2 or 21 and 22 must satisfy the requirements for having a
proof voltage < AC 500 V applied between the conductor/ground, conductor/shield and
shield/ground.
Connect the devices that are operated in hazardous areas as per the stipulations
applicable in the country of operation, e.g. for Ex "d" and "nA", permanent cables must be
laid.
Maximum process fluid tempera‐
ture [°C]
T6 (85 °C)
T5 (100 °C)
T4 (135 °C)
T3 (200 °C)
T3 (200 °C)
info@eltra-trade.com
Ambient temperature [°C]
-25 to +60
-25 to +60
-25 to +60
-25 to +60
-25 to +50
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