Hazardous location installation
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Figure 6-1: Minimum dimension of the field housing cross section
• Ensure that the cable glands match the diameter of the used cables.
- Diameter EZ 105x, EZ 108x, and PR 642x sensor cable: 2.65 to 2.90 mm
- Diameter of the supply and signal cables are variable and must be observed.
• The wire cross section of the cables used for supply and signal must be within the
range of 0.34 < F < 2.5 mm
2
. At stranded conductors, use ferrules.
• Observe the heating within the field housing. Expect a maximum heat dissipation of
1.12 W for each EZ 1000 converter.
6.4 Installation of the sensors
If an EZ 105x, EZ 108x, or PR 642x sensor is used with interconnector, the grounding of the
connector housing has to be considered. Isolate the connector:
1. Shrink the black shrink sleeve on the interconnector.
2. Additionally, shrink the blue shrink sleeve on the interconnector already isolated
with the black shrink sleeve.
Both shrink sleeves have to be positioned and shrank over the housing of the connector.
Third party sensors must comply to the Ex i requirements.