Connecting The Measuring Unit - Endress+Hauser Cerabar S PMC71 Brief Operating Instructions

Wiring
3.2

Connecting the measuring unit

!
Note!
For further information on the network structure and earthing and for further bus system
components such as bus cables, see the relevant documentation, e.g. Operating Instructions
BA013S "FOUNDATION Fieldbus Overview" and the FONDATION Fieldbus Guideline.
3.2.1 Supply voltage
• Version for non-hazardous area: 9...32 V DC
3.2.2 Current consumption
15 mA ±1 mA, switch-on current corresponds to IEC 61158-2, Clause 21.
3.2.3 Cable specification
• Use a twisted, screened two-wire cable, preferably cable type A.
• Terminals for wire cross-Sections: 0.5...2.5 mm
• Outer cable diameter: 5...9 mm
!
Note!
For further information on the cable specifications, see Operating Instructions BA013S
"FOUNDATION Fieldbus Overview", FONDATION Fieldbus Guideline and IEC 61158-2
(MBP).
3.2.4 Earthing and screening
Cerabar S must be earthed, for example by means of the external earth terminal.
Different earthing and screening installation methods are available for FOUNDATION Fieldbus
networks such as:
• Isolated installation (see also IEC 61158-2)
• Installation with multiple earthing
• Capacitive installation
10
Cerabar S FOUNDATION Fieldbus
2
Endress+Hauser