Siemens MC2 Instrucciones De Instalación Y Conexión página 9

Connection in hazardous locations
The MC2 sensors are ex certified products (increased safety) up to 60 V.
This means that:
● All secondary circuits/terminals can be considered as limited circuits with non-hazardous voltage of max. 60 V.
With no further approvals, the standard MC2sensor can be connected to standard transmitters as shown in
Overview of location and interconnection of transmitter and
● Equipment connected to the signal outputs (current, pulse etc) must however obtain the same high degree of isolation
from mains supply as the transmitters (Class 2 transformer or Class 1)
WARNING
Use in hazardous locations
Special requirements apply for the power supply, input and output signals and ground connections.
Note
In compliance with the EMC-standard / low voltage guideline, the terminal box, in addition to the meter tube of the flow
sensor, must be grounded. To make this connection, use the supplied green/yellow cable:
Cut the enclosed cable lug to the shortest required length
•
Crimp the matching cable lug onto the cable
•
Join both ends and make sure both screws are securely fastened
•
Explosion proof instruments should fundamentally be integrated into equipotential bonding.
See also
For further information on the electrical connection of the sensor to the transmitter, see the operating instructions for the
respective transmitters.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
MC2 installation and connection instruction
MC2 installation and connection instruction
A5E34730442, 07/2014
A5E34730442-001, 07/2014
sensor.
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