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FW-F010-A-M_v0404_01_EN.docx
5.3
TERMINAL CONNECTORS INTRINSICALLY SAFE APPLICATIONS
Terminal connectors F010-A-(PX / PC / PD / PL)-XI-(ZB):
Fig. 21: Overview terminal connectors Type XI - Intrinsically Safe applications
5.3.1
POWER SUPPLY WIRING
The F010-A can be powered from an external power supply. An internal power supply is also
available in the form of a lithium battery. When both external and internal power supplies are
available, the internal power supply is interrupted and will act as a backup supply. Note that the
optional backlight only works with an external power supply.
The following types of power supply are available for hazardous area:
•
Type PX:
as standard, all intrinsically safe products are supplied with terminal 4 and 5 to power the
product externally.
•
Type PC:
offers - additional to type PX - an internal Intrinsically Safe lithium battery. This ATEX certified
battery (FW-LiBAT-xxx) may be changed in hazardous area.
•
Type PD:
offers a sensor supply on terminal 6 with the same voltage as connected to terminal 5
(internally linked).
•
Type PL:
the unit will be powered from the 4-20mA input signal. Terminal 4-6 are not available.
5.3.2
TERMINAL 6 - TYPE PD: SENSOR SUPPLY
Type PD offers a supply for the sensor. Terminal 6 is directly connected to terminal 5, so the offered
voltage is the same as connected to terminal 5.