Cerabar M PMC51, PMP51, PMP55
20 Endress+Hauser
Power supply
L
WARNING
An incorrect connection compromises electrical safety!
‣
When using the measuring device in hazardous areas, the relevant national standards and
regulations as well as the Safety Instructions or Installation or Control Drawings must be
observed → 128.
‣
All explosion protection data are given in separate documentation which is available upon
request. The Ex documentation is supplied as standard with all Ex-systems → 128.
‣
In accordance with IEC/EN61010 a suitable circuit breaker must be provided for the device.
‣
HART: Overvoltage protection HAW569-DA2B for the non-hazardous area, ATEX II 2 (1) Ex ia
IIC and IEC Ex ia can be ordered as an option (see the "Ordering information" section).
‣
Protective circuits against reverse polarity, HF influences and overvoltage peaks are installed.
Terminal assignment
A0023505
1 External grounding terminal (only for devices with certainly approvals or if "Measuring point" (TAG) is
ordered)
2 Internal grounding terminal
3 Supply voltage → 20
4 4...20 mA for HART devices
5 For HART and FOUNDATION Fieldbus devices: With a handheld terminal, all the parameters can be
configured anywhere along the bus line via menu operation.
6 Terminals
7 For HART devices: test terminals, see section "Taking 4 to 20 mA test signal" → 20
Supply voltage 4 to 20 mA HART
Type of protection Supply voltage
Intrinsically safe 11.5 to 30 V DC
• Other types of protection
• Devices without certificate
11.5 to 45 V DC
(versions with plug-in connection 35 V DC)
Taking 4 to 20 mA test signal
A 4 to 20 mA test signal may be measured via the test terminals without interrupting the
measurement.
PROFIBUS PA
Version for non-hazardous areas: 9 to 32 V DC
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